• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    USABLE VALVE, APPLIANCE FOR GENERATING A FORCE TO CLOSE A SET OF PREVENTORS UNDER SEA LEVEL AND METHOD FOR RE-ADJUSTING A VALVE ASSEMBLED IN SUBCHAPA It is a usable valve in a device below sea level to generate a force to close a set of preventers (BOP) based on a pressure difference between a low pressure vessel and the ambient pressure, an apparatus including the valve and related methods are provided. The valve includes a valve body surrounding a chamber with an inlet port selectively connectable to an outlet port, and a chamber separation assembly configured to separate the chamber from a different pressure region. The assembly includes (1) a backing plate that has a first portion of a first diameter towards the chamber and a second portion of a second diameter larger than the first diameter, towards the region, and (2) an upper seat located between the first portion of the backing plate and the valve body.
    公开号:BR102012031681B1
    申请号:R102012031681-1
    申请日:2012-12-12
    公开日:2021-02-09
    发明作者:Ryan Cheaney Gustafson
    申请人:Hydril Usa Manufacturing Llc；
    IPC主号:
    专利说明:

    FIELD OF THE INVENTION
    [001] Realizations of the subject revealed in this document in general refer to a usable valve below sea level and connected to a low pressure vessel and related methods, more particularly, refer to a usable valve in an apparatus for operate a set of offshore preventers (BOP) by generating a force due to a pressure difference between the hydrostatic pressure and a substantially lower pressure. BACKGROUND OF THE INVENTION
    [002] During the past few years, with the increase in the price of fossil fuels, the interest in developing marine drilling has increased enormously, as maritime sites seem to store large amounts of fossil fuel.
    [003] A typical marine drilling system 10 is illustrated in Figure 1. System 10 can include a vessel 12 that has a coil 14 (for example, a Mux Reel) that provides power and / or communication wires 16 for a controller 18. Some systems have hose reels to transmit fluid under pressure or a hard pipe (rigid duct) to transmit fluid under pressure or both. Other systems may have a communication hose or cables (pilot) to provide and operate functions below sea level. However, a common feature of these systems is their limited depth of operation. Controller 18 is placed below sea level, close to or on the seabed 20. In this context, it is noted that the elements illustrated in Figure 1 are not drawn to scale and no dimension should be inferred from Figure 1.
    [004] A wellhead 22 covers an underwater well 23 and a drilling cable 24 enters underwater well 23. At the end of the drilling cable 24 there may be a drilling machine (not shown). Several mechanisms, also not shown, can be employed to transmit rotation through the drilling cable 24 to the drilling machine in order to extend the underwater well deeper into the formation under the seabed.
    [005] During the normal operation of system 10, the unexpected high pressure flow of gas, oil or other well fluids (the high pressure exceeds the pressure of the drilling fluid in the drilling cable 24) may emerge from the formation in the inside the well. This type of unexpected event (sometimes called a "kick" or an "eruption") could damage the well and / or the equipment used to drill.
    [006] In order to prevent the harmful effects of these types of events, a pressure control device, for example, a set of preventers (BOP), is usually installed on the top of the wall 23. The BOP is conventionally implanted as a valve that closes to prevent the release of high pressure fluids that emerge from the well in the annular space between a housing and a drill cable 24 or in the open hole (ie, hole without a drill pipe) during drilling or exploration operations, respectively. Controller 18 controls a valve system (not shown) in order to provide the necessary force to open and close BOPs 26 and 28.
    [007] Traditionally, the force required to operate the BOPs is generated due to the pressure difference between the hydraulic pressure and a pressurized hydraulic fluid. The hydraulic fluid used to generate this force is commonly pressurized by equipment on the surface. The pressurized fluid is stored in an accumulator (for example, 30 in Figure 1) which is lowered below sea level, close to the location of the BOPs, after being loaded. Accumulator 30 may include plural receptacles (canisters) that store hydraulic fluid under pressure to provide the pressure necessary to operate (close and open) the BOPs. The high pressure hydraulic fluid can be selectively supplied through the pipe 32. The generated force is transmitted to the BOPs 26 and 28.
    [008] A conventional apparatus 40 for generating a force used to operate the BOPs is illustrated in Figure 2. The accumulator 30 is connected via valve 34 to a cylinder 36. The cylinder 36 includes a piston (not shown) that moves when a pressure difference occurs between the volumes separated by the piston, thereby generating a force used to operate a BOP 27 (which is one of BOPs 26 and 28). The force is generated due to a pressure difference that occurs in the cylinder 36 when the controller 18 causes the valve 34 to open a fluid communication from the accumulator 30 to the cylinder 36.
    [009] As understood in the state of the art of offshore drilling technique, in order to supply hydraulic fluid that has a pressure greater than the hydrostatic pressure generated due to sea water at the depth of the operation of the BOPs (for example, ~ 24.32 MPa (240 atm) at 2500m depth), the accumulator 30 is initially loaded on the surface. Typically, accumulators are charged with nitrogen. As the required pressure increases with operational depth, the efficiency for storing hydraulic fluid (eg nitrogen) usable at sea decreases, which adds additional costs and weight because more accumulators are then needed to perform the same operation as on the surface. For example, an accumulator that has a capacity of 60 liters (l) and a usable volume of 24 l on the surface te, a usable volume less than 4 l at 3000 m of water depth. Therefore, using accumulators to store high pressure hydraulic fluids to operate a BOP makes operating the offshore platform expensive, and requires handling large parts. In other words, supplying hydraulic fluid that has a pressure higher than the hydraulic pressure on the high seas becomes prohibitively expensive. The equipment to load, dispose and maintain the accumulators is bulky, as the size of the vessels that are part of the accumulator 30 increases. The operating range of the BOPs is limited by the initial pressure difference between the charging pressure and the hydrostatic pressure in the depth of the operation (ie, high seas). With increasing depth (that is, the distance from the sea surface to the seabed), storing high-pressure hydraulic fluid in accumulators becomes less efficient, while hydrostatic pressure increases, making it necessary to increase the size of the accumulators (for example, it may become necessary to use 16 bottles of 320 liters of nitrogen).
    [010] As disclosed in US Patent Application Serial No. 12 / 338,652 filed on December 18, 2008, entitled “Subsea Force Generating Device and Method” by R. Gustafson, whose full disclosure is incorporated into this document, an apparatus 50 as illustrated in Figure 3, it generates an underwater force F based on a pressure difference between the hydrostatic pressure and a pressure less than the hydrostatic pressure.
    [011] The apparatus 50 includes a housing 52 which has a piston 54 configured to move along it. Piston 54 divides housing 52 into a chamber 56, called the closing chamber, and a chamber 58, called the opening chamber, as shown in Figure 3. The pressure difference between the opening chamber 58 and the closing chamber 56 yields a force that moves the piston and is transmitted, for example, to a BOP drawer block (not shown) through a rod 57.
    [012] When the BOP is not actuated (ie closed or open), the pressure in both chambers 56 and 58 can be the same, for example, the hydrostatic (ambient) pressure. The presence of fluid at ambient pressure (Pamb) in both chambers 56 and 58 can be achieved by allowing seawater to freely enter these chambers through corresponding valves (not shown). Thus, when there is no pressure difference between chambers 56 and 58 on opposite sides of piston 54, piston 54 is at rest and no force F is generated.
    [013] When a force becomes necessary (for example, to close the BOP when an unexpected kick event occurs), a pressure imbalance can be created between chambers 56 and 58, for example, by allowing fluid communication between the opening chamber 58 and a low pressure vessel 60 through a valve 62. The pressure Pr inside the low pressure vessel 60 can be as low as 0.1 MPa (1 atm). The valve 62 can be changed between allowing or not allowing communication between the opening chamber 58 and the low pressure vessel 60 by a controller connected to the valve via a cable 63. As a valve (not shown) that allows sea water enter the opening chamber 58 is closed before fluid communication between the opening chamber 58 and the low pressure vessel 60 is established, the closing chamber 56 can continue to receive sea water at hydrostatic (ambient) pressure through a pipe 64. Therefore, as piston 54 moves towards the right in Figure 3, the volume of the closing chamber 56 increases, but due to the additional sea water, the pressure remains the same, that is, the hydrostatic pressure to the depth of operation. After fluid communication between the opening chamber 58 and the low pressure vessel 60 is established, the pressure in the opening chamber 58 decreases towards the low pressure Pr, while sea water from the opening chamber 58 can enter the low pressure vessel 60, until the pressures in the opening chamber 58 and the low pressure vessel 60 become equal.
    [014] Although the arrangement shown in Figure 3 and described in US Patent Application Serial No. 12 / 338,652, attorney Gustavson's dossier number 236466 / 0340-005 reveals the way to generate underwater force without use accumulators, in an embodiment discussed in this document, accumulators can still be used to provide additional pressure to the closing chamber 56.
    [015] Thus, the pressure difference between the closing chamber 56 and the opening chamber 58 triggers the movement of piston 54 to the right in Figure 3, generating force F. However, because sea water from the opening chamber 58 is released into the low pressure vessel 60, the low pressure vessel 60 cannot again deliver the same low pressure unless a mechanism is in place to empty the low pressure vessel 60 of the incoming seawater . In other words, the sea water that partially occupies the low pressure vessel 60 after the valve 62 has been opened has to be removed and the low pressure gas that existed in the low pressure vessel 60 before the opening of the valve 62 has to be removed. be restored in order to reuse the low pressure container 60.
    [016] The low pressure container 60 can be reconfigured to its initial state by providing a reconfigured container connected to the low pressure container 60, as described in US Patent Application Serial No. 12 / 338.669, dossier number of attorney 236956 / 0340-008, filed on December 18, 2008, entitled “Rechargeable Subsea Force Generating Device and Method” by R. Gustafson, whose full disclosure is incorporated into this document.
    [017] Another way to reconfigure the low pressure vessel in its initial condition is described in US Patent Application Serial No. 12 / 960,770, attorney's dossier number 245826 / 0340-062, filed on December 6, 2010, entitled R. Gustafson's “Rechargeable Subsea Force Generating Device and Method”, the full disclosure of which is incorporated into this document. In that document it is described that a pump can be connected to the low pressure vessel to remove sea water or other fluid and to reestablish a low pressure of a gas inside the low pressure vessel.
    [018] Valve 62 can be a double chamber valve 70 as shown in Figure 4. Valve 70 can have several ports 70a to 70e to allow the connection of other various components to valve 70 (that is, to block or allow a fluid communication between a connected component and a valve chamber). For example, a port 70a can be connected to the opening chamber 58, a port 70b can be connected to the low pressure vessel 60, and a port 70c can be connected to controller 18 (where redundant blue and yellow PODs are typically located). A higher pressure than hydrostatic pressure can be provided when fluid communication is made possible between the opening chamber 58 and the controller 18 to provide a force opposite to the provided force when the low pressure vessel 60 is in fluid communication with the opening chamber. opening 58. Thus, the BOP can be closed when the low pressure vessel 60 is in fluid communication with the opening chamber 58, and open when the controller 18 is in fluid communication with the opening chamber 58. As understood in the state of the technique, the closing of the BOPs must be quick (ie, time and strength are essential) to prevent damage to the equipment due to “kickbacks”, while the opening of the BOPs is less demanding. Thus, supplying a high pressure hydraulic fluid from the surface through the controller 18 can be employed to open the BOPs.
    [019] Valve 70 is actuated between the different states by a pilot 80, which can be a mechanical, hydraulic or electromechanical mechanism. Once the pilot supply has been removed, a spring 90 will move the valve to its normal position. A valve equipped with two pilots could also be used to change the valve from any position if an additional pilot signal was provided.
    [020] Cross sections through a conventional subplate mounted valve (SPM) 100 (used, for example, in apparatus 30) are illustrated in Figures 5A and 5B. Figure 6 is an exploded representation of the parts of the SPM 100 valve. As shown in Figures 5A, 5B and 6, the conventional SPM valve 100 includes an upper seat upper seat 101, seals 102a and 102b, a stem seal 103, a plate support 104, an external spring 105, an internal spring 106, a spring retainer 107, a split clamp 108, a pilot piston 109, a piston seal 110, a piston housing 111, valve stem 112, a spool 113, a nut 114, a cage 115, a stem seal 116, a seal 117, a bottom seat 118 and a valve body 119. The outer spring 105, inner spring 106, spring retainer 107, and split caliper 108 are housed within a piston housing chamber 121, which is vented to sea pressure. The conventional SPM valve 100 has a port 130 that can serve to connect the opening chamber 58, a port 135 that can serve to connect the low pressure receptacle 60, and a port 140 that can serve to connect the controller 18. In Figure 5A, the spool 113 is in a first position which is located close to the upper seat 101. In Figure 5B, the spool 113 is in a second position which is located near the lower seat 118.
    [021] This conventional SPM valve 100 is not suitable for use in device 50 (ie, to be connected to a low pressure vessel within which the pressure can be as low as 0.1 MPa (1 atm)) because may not withstand the high pressure difference between cameras 150, port 135 and valve chamber 121. The upper seat 101 and the support plate 104 are located at an interface between these chambers. The upper seat 101, which is typically made of plastic, is entirely supported by the backing plate 104 when the valve is exposed to internal pressure in its conventional operating condition. However, when valve 100 is positioned so that port 130 is aligned with port 135 to align opening chamber 58 with low pressure receptacle 60, the pressure differential between seawater pressure in chamber 121 and the low pressure in the chamber 150 is felt across the upper seat 101. As a result, the plastic seat 101 can deform by bending outwardly along the valve stem 112 and is prone to damage because it is not entirely supported within the port 135 and chamber 150. The plastic seat is used because it is slightly elastic and when the spool 113 comes into contact with the seat 130, the contact surface creates a seal between port 135 and the chamber 150 when the spool 113 is engaged in the upper seat 101 and when the valve is operated, the opposite contact face of the spool 113 contacts the lower seat 118 and the contact surface creates a seal between chambers 150 and port 140. Furthermore, due to a difference of increased pressure inside the valve, the potential to leak fluid towards the lower pressure chamber increases (for example, when fluid communication between the low pressure vessel 60 and the chamber 150 is established), thereby damaging the valve and The device.
    [022] Therefore, it would be desirable to provide a valve capable of avoiding these problems that has a sealing system that would make the valve usable in an arrangement that generates strength to operate the BOPs using a low pressure vessel. DESCRIPTION OF THE INVENTION
    [023] According to an exemplary embodiment, a valve usable in an underwater embodiment configured to generate a force to close a set of preventers (BOP) based on a pressure difference between a low pressure vessel and the ambient temperature is provided . The valve has a valve body that surrounds a chamber with an inlet port selectively connectable to an outlet port, and a chamber that separates the set configured to separate the chamber from a different pressure region. The set includes (1) a backing plate that has a first portion of a first diameter towards the chamber and a second portion of a second diameter larger than the first diameter, towards the region, and (2) an upper seat located between the first portion of the backing plate and the valve body.
    [024] According to another exemplary embodiment, an apparatus to generate a force to close a set of preventers (BOP) below sea level, the force being generated due to a pressure difference between a hydrostatic pressure and a pressure low, is provided. The device includes a cylinder separated in two chambers by a piston connected to the rod configured to transmit the force generated due to the pressure imbalance between the two chambers, for the BOP. The device additionally includes a low pressure vessel, a valve configured to selectively enable fluid communication between the low pressure vessel and one of the cylinder chambers. The valve has a valve body surrounding a chamber with an inlet port selectively connectable to an outlet port, and a separation set configured to separate the chamber from a different pressure region. The set includes (1) a backing plate that has a first portion of a first diameter towards the chamber and a second portion of a second diameter larger than the first diameter, towards the region, and (2) an upper seat located between the first portion of the backing plate and the valve body.
    [025] According to another exemplary embodiment, a method of retrofitting a subplate-mounted valve (SPM) to be able to withstand a large pressure difference between a low pressure inside the valve and a hydrostatic pressure outside it is provided. The method includes removing a chamber separation set configured to separate a chamber within a valve body, from a region of different pressures. The method additionally includes mounting a second separation set configured to separate the chamber within the valve body, from the different pressure region. The second separation set includes (1) a backing plate that has a first portion of a first diameter towards the chamber and a second portion of a second diameter larger than the first diameter, towards the region, and (2) a upper seat located between the first portion of the backing plate and the valve body. BRIEF DESCRIPTION OF THE DRAWINGS
    [026] The attached drawings, which are incorporated and constitute a part of the specification, illustrate one or more achievements and, together with the description, explain those achievements. In the drawings: Figure 1 is a schematic diagram of a conventional marine probe; Figure 2 is a schematic diagram of an apparatus conventionally used to generate a force to act BOPs; Figure 3 is a schematic diagram of an apparatus that uses a low pressure vessel to generate force to actuate the BOPs; Figure 4 is a schematic diagram of a double-chamber valve used in an apparatus to generate a force below sea level to actuate the BOPs using a low pressure vessel; Figure 5A is a cross-section through a conventional SPM valve while its spool is in a first position; Figure 5B is a cross-section through a conventional SPM valve while its spool is in a second position; Figure 6 is an exploded representation of a conventional SPM valve; Figure 7A is a cross-section through an SPM valve in accordance with an exemplary embodiment, while a spool thereof is in a first position; Figure 7B is a cross-section through an SPM valve in accordance with an exemplary embodiment, while a spool thereof is in a second position; Figure 8 is an exploded representation of an SPM valve, according to an exemplary embodiment; Figure 9 is an apparatus that uses a low pressure vessel to generate force to actuate the BOPs according to an exemplary embodiment; and Figure 10 is a flow chart illustrating a method for retrofitting a conventional SPM valve, according to an exemplary embodiment. DESCRIPTION OF ACCOMPLISHMENTS OF THE INVENTION
    [027] The following description of the exemplary achievements refers to the attached drawings. The same reference numbers in different drawings identify the same or similar elements. The following detailed description does not limit the invention. On the contrary, the scope of the invention is defined by the appended claims. The following achievements are discussed for simplicity, in relation to the terminology and structure of BOP systems. However, the achievements to be discussed below are not limited to these systems, but can be applied to other systems that require a valve that operates below sea level and has to withstand a high pressure difference in relation to a pressure less than hydrostatic pressure.
    [028] Reference throughout the specification to "one (1) realization" or "an realization" means that a particular feature, structure or feature described in connection with an realization is included in at least one realization of the disclosed matter. Thus, the appearance of the phrases “in one (1) realization” or “in one realization” in different places throughout the specification does not necessarily refer to the same realization. Furthermore, particular resources, structures or characteristics can be combined in any suitable way into one or more realizations.
    [029] As understood by those in the prior art, when a valve is used in a conventional device that generates an underwater force (that is, due to a pressure difference between the hydrostatic pressure and a pressure greater than the hydrostatic pressure), the pressure inside the valve can sometimes be higher than the hydrostatic pressure and hydraulic fluid can leak out of the valve. On the other hand, when the valve is used in a device that generates an underwater force (due to a pressure difference between the hydrostatic pressure and a pressure substantially less than the hydrostatic pressure), the pressure inside the valve can sometimes be substantially lower (for example, ~ 0.1 MPa (1 atm) against ~ 24.32 MPa (240 atm) of hydrostatic pressure at a depth of 2500m) that hydrostatic pressure and seawater can penetrate into the valve, destroying the valve, and even rendering the device unable to close the BOPs. Taking into account these different circumstances, valves, according to different embodiments, are configured to be used efficiently and safely when the pressure inside the valve is substantially less than the hydrostatic pressure.
    [030] Cross sections through a valve 200, according to an exemplary embodiment, are illustrated in Figures 7A and 7B. Valve 200 is a modified version of the conventional SPM valve 100 in order to be used below sea level and connected to a low pressure vessel within which the gas has a substantially lower pressure than the hydrostatic pressure. Figure 8 is an exploded representation of valve parts 200. As shown in Figures 7A, 7B and 8, valve 200 includes an upper seat 201, seals 102a and 102b, a seal 202, a stem seal 103, a seal 120 , a backing plate 204, an outer spring 105, an inner spring 106, a spring retainer 107, a split clamp 108, a pilot piston 109, a piston seal 110, a piston housing 111, a valve stem 112 , a spool 113, a nut 114, a cage 115, a stem seal 116, a seal 117, a bottom seat 118 and a valve body 119. In Figure 7A, spool 113 is in a first position that is located close to the upper seat 201. In Figure 7B, the spool 113 is in a second position that is located close to the lower seat 118.
    [031] Thus, in addition to parts similar to parts on a conventional SPM valve (similar parts have the same legend as in Figures 5 and 6), valve 200 has an additional seal 220 located between the upper seat 201 and the backing plate 204, and an additional seal 202 located between the backing plate 204 and the valve body 119.
    [032] The backing plate 104 is essentially a disc with a central hole through which the valve stem 112 passes when the valve is mounted. Unlike the support plate 104 of the conventional SPM valve 100, the support plate 204 of the valve 200 has two portions, with a first diameter of the first portion being less than a second diameter of the second portion. The backing plate 204 also has a central hole through which the valve stem 112 passes when the valve is mounted.
    [033] The upper seat 101 of the conventional SPM valve has a central hole through which the valve stem 112 passes when the valve is mounted. Unlike the upper seat 101, the upper seat 201 has a larger orifice that is configured to surround the first portion of the backing plate 204. The upper seat 201 has an inner diameter substantially equal to the first diameter of the backing plate 204, and a diameter substantially equal to the second diameter of the backing plate 204. The upper seat 201 and the backing plate 204 can have essentially the same total volume as the upper seat 101 and the backing plate 104.
    [034] Valve body 119 surrounds a chamber 150 with a port 130 that can serve to connect the opening chamber, a port 135 that can serve to connect the low pressure receptacle and a port 140 that can serve to connect a controller . Since port 130 is used to transfer pressure other than an initial pressure to the opening chamber, port 130 can be considered an outlet port. Pressure is transferred through the valve from a low pressure vessel or from a controller through ports 140 and 150 selectively open towards chamber 150. Thus, ports 140 and 150 can be considered as inlet ports, which are the source of pressure change to generate the strength to operate the BOP.
    [035] Due to the redesigned shapes of the upper seat 201 and the backing plate 204, valve 200 operates more reliably than a conventional SPM valve below sea level, when the valve is connected to a low pressure vessel, and therefore must be able to withstand large differences in external pressure. The additional seals 220, 202 provide a method to prevent the external seawater pressure of chamber 121 from reacting with the bottom side of the plastic upper seat 201 and damaging it when the ambient pressure inside the chamber 150 on the front side of the upper seat 201 is less than the surrounding external pressure. Therefore, the upper seat 201 does not experience the differential pressure between seawater pressure and the lower pressure in the low pressure vessel 60 through chamber 150. As a result, there is no force to cause the upper seat 201 to curve or deform. The valve 200 can operate for pressure differences (between hydrostatic pressure and the pressure in the low pressure vessel) and still operate with the same seal assembly as the spool 113 engages the upper seat 201.
    [036] Figure 9 is a schematic diagram of an apparatus 300 for generating a force below sea level based on a pressure difference between the hydrostatic pressure and a low pressure, according to an exemplary embodiment. Apparatus 300 includes a housing 52 which has a piston 54 configured to move along it. The piston 54 divides the housing 52 into a closing chamber 56 and an opening chamber 58. A pressure difference between the opening chamber 58 and the closing chamber 56 yields an actuation force that moves the piston 54. The opening chamber opening 58 is selectively connected to a low pressure vessel 60 and a controller 18 via valve 200. A pilot 80 can actuate valve 200.
    [037] A conventional SPM valve (such as 100 in Figures 5 and 6) can be retrofitted to become a valve similar to the 200 valve 200 valve. A flow diagram of a 400 method for retrofitting a conventional valve is illustrated in Figure 10 Method 400 includes removing a chamber separation assembly (for example, the upper seat 101 and the support plate 104) configured to separate a chamber (for example, 150) within a valve body (for example, 119 ) from a different pressure region, in S410. Method 400 additionally includes mounting a second separation assembly (for example, the upper seat 201 and the support plate 204) configured to separate the chamber (for example, 150) within a valve body (for example, 119) different pressure region. The second separation set includes a backing plate (for example, 204) and an upper seat (for example, 201). The backing plate (for example, 204) has a first portion of a first diameter towards the chamber (for example, 150) and a second portion of a second diameter larger than the first diameter towards the region. The upper seat (for example, 201) is located between the first portion of the backing plate (for example, 204) and the valve body (for example, 119).
    [038] Method 400 may also include mounting an additional first seal (for example, 220) located between the upper seat and the backing plate. Method 400 may also include mounting an additional second seal (e.g. 202) between the backing plate and the valve body. The volume of the second chamber separation assembly can be substantially equal to a volume of the chamber separation assembly that is removed. The backing plate can be made of metal and the upper seat can be made of plastic or flexible material.
    [039] The exemplary embodiments revealed provide a valve and a method of retrofitting a valve to be used in a layout to generate power below sea level with reduced energy consumption at low cost. It should be understood that this description is not intended to limit the invention. On the contrary, the exemplary embodiments are intended to cover alternatives, modifications and equivalents, which are included in the spirit and scope of the invention as defined by the appended claims. Furthermore, in the detailed description of the exemplary embodiments, numerous specific details are presented in order to provide a complete understanding of the claimed invention. However, a person skilled in the art would understand that the various achievements can be practiced without such specific details.
    [040] Although the resources and elements of the present exemplary achievements are described in the achievements in particular combinations, each resource or element can be used alone without the other resources and elements of the achievements or in various combinations with or without other resources and elements disclosed in the present document.
    [041] This written description uses examples from the material revealed to enable any technician in the subject to practice it, which includes making and using any devices or systems and carrying out any built-in methods. The patentable scope of the matter is defined by the claims, and may include others that occur to those technicians in the matter. Such other examples are intended to be within the scope of the claims.
    权利要求:
    Claims (12)
    [0001]
    1. VALVE (200) usable in an arrangement below sea level configured to generate a force to close a set of preventers, based on a pressure difference between a low pressure vessel (60) and an ambient pressure, being the valve (200) characterized by comprising: a valve body (119) surrounding a chamber (150) with an inlet port selectively connectable to an outlet port; and a chamber separation set configured to separate the chamber (150) from a different pressure region, the set including: a backing plate (204) having a first portion of a first diameter towards the chamber (150 ) and a second portion of a second diameter larger than the first diameter, towards the region and on a distal side of the chamber (150); and an annular upper seat (201) located between the first portion of the backing plate (204) and the valve body (119).
    [0002]
    VALVE (200) according to claim 1, characterized in that it additionally comprises a first seal and an additional first seal (220) located between the annular upper seat (201) and the backing plate (204); and a second seal and an additional second seal (202) between the backing plate (204) and the valve body (119).
    [0003]
    VALVE (200) according to any one of claims 1 to 2, characterized in that the inlet port is connected to a low pressure vessel (60) which stores a fluid at a low pressure less than an ambient pressure outside the chamber (150).
    [0004]
    VALVE (200) according to claim 3, characterized in that the low pressure is 0.1 MPa.
    [0005]
    VALVE (200) according to any one of claims 1 to 4, characterized in that the backing plate (204) is made of metallic material.
    [0006]
    VALVE (200) according to any one of claims 1 to 5, characterized in that the upper annular seat (201) is made of a plastic or flexible material.
    [0007]
    7. APPLIANCE (300) TO GENERATE A FORCE TO CLOSE A SET OF PREVENTORS UNDER THE SEA LEVEL, the force being generated due to a pressure difference between a hydrostatic pressure and a low pressure, the device (300) being characterized to be understood: a cylinder separated into two chambers (56, 58) by a piston (54) connected to a rod (57) configured to transmit the force generated due to a pressure imbalance between the two chambers (56, 58) for the set of preventers; a low pressure vessel (60); and a valve (200) configured to selectively enable fluid communication between the low pressure container (60) and one of the cylinder chambers (56, 58), the valve (200) comprising a valve body (119) surrounding a chamber (150) with an input port selectively connectable to an output port; and a separation set configured to separate the chamber (150) from a different pressure region, the set including: a backing plate (204) having a first portion of a first diameter towards the chamber (150) and a second portion of a second diameter larger than the first diameter facing towards the region; and an annular upper seat (201) located between the first portion of the backing plate (204) and the valve body (119).
    [0008]
    Apparatus (300) according to claim 7, characterized in that it additionally comprises a first seal and an additional first seal (220) located between the upper seat (201) and the backing plate (204) and a second seal and an additional second seal (202) between the backing plate (204) and the valve body (119).
    [0009]
    Apparatus (300) according to any one of claims 7 to 8, characterized in that the inlet port is connected to a low pressure container (60) which stores a fluid at a low pressure less than an ambient pressure outside the chamber .
    [0010]
    Apparatus (300) according to claim 9, characterized in that the low pressure is 0.1 MPa.
    [0011]
    11. APPLIANCE (300) according to any one of claims 7 to 10, characterized in that the backing plate (204) is made of metallic material.
    [0012]
    Apparatus (300) according to any one of claims 7 to 11, characterized in that the annular upper seat (201) is made of a plastic or flexible material.
    类似技术:
    公开号 | 公开日 | 专利标题
    BR102012031681B1|2021-02-09|valve and apparatus to generate a force to close a set of preventers below sea level
    AU2011253743B2|2016-09-15|Rechargeable system for subsea force generating device and method
    EP2917460B1|2017-07-12|Blowout preventer system with three control pods
    US8602109B2|2013-12-10|Subsea force generating device and method
    AU2011218060B2|2015-08-20|Apparatus, system and method for releasing fluids from a subsea riser
    GB2530411B|2019-11-27|Diverter with stabbing dog
    BRPI0905418A2|2011-06-21|reset module to be used to reset a pressure in a low pressure container and method to reset a low pressure in a low pressure container
    EP2352900B1|2017-05-03|Two-stage submersible actuators
    BRPI1104879B1|2020-06-16|CONFIGURED SYSTEM FOR MOVING A DRAWER BLOCK IN AN EXPLOSION PREVENTOR, SYSTEM FOR USE WITH AN EXPLOSION PREVENTOR AND METHOD FOR OPERATING AN EXPLOSION PREVENTOR
    US20050279504A1|2005-12-22|Intervention spool for subsea use
    WO2013103604A2|2013-07-11|Sealing mechanism for subsea capping system
    US20150322978A1|2015-11-12|Subsea force generating device and method
    JP5436188B2|2014-03-05|Deformation resistant open chamber head and method
    BR112016009779B1|2022-01-11|SUBSEA DRILLING SYSTEM AND FLUID SYSTEM FOR A SUBSEA DRILLING SYSTEM
    WO2021044133A1|2021-03-11|Hydraulic protection system and method
    AU2020342613A1|2022-03-17|Hydraulic protection system and method
    GB2536992A|2016-10-05|Accumulator manifold
    BRPI1013128A2|2013-12-24|INTEGRATED COLUMN SUSPENDER LOCKING SYSTEM FOR UNDERWATER OR UNDERGROUND WELLS
    同族专利:
    公开号 | 公开日
    SG191500A1|2013-07-31|
    CN103161425B|2017-04-12|
    US20130146303A1|2013-06-13|
    EP2604787A1|2013-06-19|
    NO2604787T3|2018-03-10|
    BR102012031681B8|2021-03-02|
    AU2012261641A1|2013-06-27|
    EP2604787B1|2017-10-11|
    BR102012031681A2|2015-01-20|
    US8905141B2|2014-12-09|
    CN103161425A|2013-06-19|
    AU2012261641B2|2016-11-24|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3987708A|1975-03-10|1976-10-26|The United States Of America As Represented By The Secretary Of The Navy|Depth insensitive accumulator for undersea hydraulic systems|
    US4311297A|1980-04-04|1982-01-19|Exxon Production Research Company|Pressure insensitive valve|
    US5778918A|1996-10-18|1998-07-14|Varco Shaffer, Inc.|Pilot valve with improved cage|
    US5771931A|1996-10-31|1998-06-30|Gilmore Valve Company|High pressure wear resistant pilot valve|
    US5901749A|1997-03-19|1999-05-11|Gilmore Valve Company, Inc.|Three-way poppet valve|
    US6125874A|1999-06-21|2000-10-03|Dril-Quip, Inc|Gate valve having fail safe actuator|
    US6609533B2|2001-03-08|2003-08-26|World Wide Oilfield Machine, Inc.|Valve actuator and method|
    US7628207B2|2006-04-18|2009-12-08|Schlumberger Technology Corporation|Accumulator for subsea equipment|
    US7520129B2|2006-11-07|2009-04-21|Varco I/P, Inc.|Subsea pressure accumulator systems|
    US8464525B2|2007-02-07|2013-06-18|National Oilwell Varco, L.P.|Subsea power fluid recovery systems|
    US7926501B2|2007-02-07|2011-04-19|National Oilwell Varco L.P.|Subsea pressure systems for fluid recovery|
    AT556228T|2007-09-10|2012-05-15|Cameron Int Corp|PRESSURE COMPENSATED ACCUMULATOR BOTTLE|
    CN101324180B|2008-07-31|2011-12-28|河北华北石油荣盛机械制造有限公司|Underwater hydraulic reversing valve|
    US8602109B2|2008-12-18|2013-12-10|Hydril Usa Manufacturing Llc|Subsea force generating device and method|
    US8220773B2|2008-12-18|2012-07-17|Hydril Usa Manufacturing Llc|Rechargeable subsea force generating device and method|
    US8387706B2|2010-05-20|2013-03-05|Reel Power Licensing Corp|Negative accumulator for BOP shear rams|WO2014036431A2|2012-08-30|2014-03-06|Vetco Gray Inc.|Stabilized valve|
    US20150101674A1|2012-12-20|2015-04-16|Hydril Usa Distribution, Llc|Subsea pressure regulator|
    US9394758B2|2013-05-03|2016-07-19|National Oilwell Varco, L.P.|Sealable wellsite valve and method of using same|
    EP3014049A1|2013-06-24|2016-05-04|National Oilwell Varco, L.P.|Blowout preventer activator and method of using same|
    CN106103884B|2013-10-07|2020-08-11|越洋创新实验室有限公司|Manifold for providing hydraulic fluid to subsea blowout preventers and related methods|
    US9982511B2|2014-01-03|2018-05-29|Proserv Operations, Inc.|Dirty fluid pressure regulator and control valve|
    GB201401366D0|2014-01-27|2014-03-12|Schoolhill Hydraulic Eng|Dump valve|
    BR102014007557A2|2014-03-28|2016-04-12|Fmc Technologies Do Brasil Ltda|spring return hydraulic actuator|
    US9657850B2|2014-08-28|2017-05-23|Proserv Operations, Inc.|High performance subsea pressure regulator|
    US9528340B2|2014-12-17|2016-12-27|Hydrill USA Distribution LLC|Solenoid valve housings for blowout preventer|
    US10670155B2|2015-10-05|2020-06-02|Proserv Gilmore Valve Llc|Latching poppet valve|
    US10487951B2|2016-01-22|2019-11-26|Proserv Operations, Inc.|Non-interflow directional control valve|
    WO2018053132A1|2016-09-15|2018-03-22|Proserv Operations, Inc.|Low friction hydraulic circuit control components|
    US10309544B2|2017-02-13|2019-06-04|Cameron International Corporation|Valve assembly|
    US10739796B2|2017-09-22|2020-08-11|Proserv Gilmore Valve Llc|Pressure regulator with reconfigurable hydraulic dampening|
    US10633951B2|2017-09-22|2020-04-28|Proserv Operations, Inc.|Pressure regulator with user selectable dampening|
    US11022226B2|2018-03-20|2021-06-01|Proserv Operations, Inc.|Microfluidic valve|
    US11054050B2|2018-08-13|2021-07-06|Proserv Operations Inc.|Valve with press-fit insert|
    US11209096B2|2018-11-19|2021-12-28|Proserv Operations, Inc.|Bilateral and throttling directional control valve|
    US11261982B2|2019-06-27|2022-03-01|Proserv Gilmore Valve Llc|Pressure relief valve with bi-directional seat|
    法律状态:
    2015-01-20| B03A| Publication of a patent application or of a certificate of addition of invention [chapter 3.1 patent gazette]|
    2018-12-04| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-10-01| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-12-01| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-02-09| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 12/12/2012, OBSERVADAS AS CONDICOES LEGAIS. |
    2021-03-02| B16C| Correction of notification of the grant [chapter 16.3 patent gazette]|Free format text: REF. RPI 2614 DE 09/02/2021 QUANTO AO ENDERECO. |
    优先权:
    申请号 | 申请日 | 专利标题
    US13/323,998|US8905141B2|2011-12-13|2011-12-13|Subsea operating valve connectable to low pressure recipient|
    US13/323,998|2011-12-13|
    [返回顶部]