• 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:
    The invention relates to a double jacket pipe section (1, 2) comprising a closed annulus (3) under reduced pressure delimited by an internal metal tube (2) inserted into an outer tube (1) made of metal and equipped with a measuring device for non-intrusively determining the state of the annulus (3), the measuring system being composed of a first internal transmitter / receiver unit (4) arranged inside the annular (3) and co-operating with a measuring means (10) for a physical quantity such as the pressure, the hygrometry or the temperature prevailing in the annulus (3) under reduced pressure and a second external transmitter / receiver assembly (5) arranged at the outside the section vis-à-vis said first set (4). Use of the transducer system to measure the pressure in an annular ring under reduced pressure.
    公开号:FR3063793A1
    申请号:FR1770244
    申请日:2017-03-13
    公开日:2018-09-14
    发明作者:Jean-Aurelien Damour；Christian GEERTSEN；Pierre Ollier
    申请人:ITP SA；
    IPC主号:
    专利说明:

    Holder (s): ITP SA.
    Agent (s): CABINET CELANIE Simplified joint-stock company.
    DOUBLE-ENVELOPE CONDUCTOR SECTION AND USE OF AN ACOUSTIC TRANSDUCER MEASUREMENT SYSTEM IN A REDUCED PRESSURE ANNULAR.
    FR 3 063 793 - A1 (LY) The invention relates to a double-envelope pipe section (1, 2) comprising a closed annular (3) under reduced pressure delimited by an internal metal tube (2) inserted in an external tube (1 ) metallic and equipped with a measurement system for non-intrusively determining the state of the ring finger (3), the measurement system being composed of a first internal transmitter / receiver assembly (4) arranged inside of the ring finger (3) and cooperating with a measurement means (10) of a physical quantity such as the pressure, the humidity or the temperature prevailing in the ring finger (3) under reduced pressure and of a second emitter assembly / external receiver (5) disposed outside the section opposite said first assembly (4).
    Use of the transducer system to measure the pressure prevailing in a ring finger under reduced pressure.

    The technical sector of the present invention is that of double-walled metal pipes usable in the transport of hydrocarbons.
    In the exploitation of hydrocarbons on shore or offshore, it is possible to use a heat-insulated double jacket pipe. The operation in question concerns, for example, heavy oils containing hydrates or paraffins capable of solidifying and thus obstructing the pipe leading to its decommissioning.
    The jacketed pipes referred to are typically insulated pipes with screw junction for oil wells or steam injection wells and insulated hydrocarbon pipes assembled by welding for the transport of oils or gases in sub-operating marine or terrestrial.
    A heat-insulated double jacket pipe section includes, for example, an open-pore silica-based thermal insulating material, placed in the annular space delimited by an internal metal tube and an external metal tube. This space is closed and sealed and put under reduced pressure in order to increase the thermal performance of the insulating material.
    Another insulation technology consists in using a multilayer insulator associated with a reduced reduced pressure called high vacuum or secondary vacuum.
    During the manufacture of these double-envelope pipes in sections of 6 to 60 m, the pressurization is reduced just before completely and hermetically closing the ring finger. By reduced pressure is meant pressure After these operations, the pressure in less than 10 ring finger does not directly
    Pa, can more immediately and be measured
    We can only estimate it by performing a thermal test. A pipe can include several hundred or even several thousand sections.
    To date, there are therefore no means allowing economic, direct and immediate measurement of the pressure in multiple annulars under reduced pressure, for example using a sensor.
    Document WO 2015/0169927 is known, which proposes to measure a factor of the pressure, temperature, pH type in the column of an oil well. Two acoustic coupling elements are provided which face each other on the column. These coupling elements are piezoelectric elements for transmitting and receiving acoustic signals. The coupling element placed on the internal side is supplied with energy from the outside. The coupling element on the external side is connected to a fluid analysis assembly in communication with the interior of the column via a hole. There is therefore not a set of detection arranged opposite and the analysis requires the drilling of the column.
    Also known is US Pat. No. 5,594,705 describing a device for measuring the pressure prevailing at the hull of a ship. This device comprises a primary element disposed in the environment surrounding the ship and a secondary element disposed inside the hull.
    All of the prior art shows that it has never been possible and envisaged to determine the state of a ring finger when it is closed in the factory in a double-walled pipe in order to measure physical quantities such as pressure, temperature or humidity. This concern, although legitimate, had never found an economical and reliable solution.
    This is why the applicant has imagined integrating, from the manufacturing stage of the double-envelope pipe, means into the ring finger in order to be able to obtain these measurements without compromising the integrity of the pipe.
    The object of the present invention is therefore to provide a section of double-walled pipe making it possible to determine the state of a ring finger under pressure by measuring different sizes without modifying the structure of the external pipe as well as using a transducer system for this purpose.
    The subject of the invention is therefore a double envelope pipe section comprising an annular closed under reduced pressure delimited by an internal metal tube inserted in a metal external tube and equipped with a measurement system for non-intrusively determining the state of the ring finger, the measurement system being composed of a first internal transmitter / receiver assembly disposed inside the ring finger and cooperating with a means of measuring a physical quantity such as pressure, hygrometry or temperature prevailing in the annular under reduced pressure and a second external transmitter / receiver assembly disposed outside the section facing said first assembly.
    According to a first characteristic of the invention, the section comprises means for locating the position of said first assembly disposed on the external wall of the external tube from a predetermined point on the latter.
    According to another characteristic of the invention, the first internal transmitter / receiver assembly is a first acoustic transducer fixed against the internal wall of the external tube and the second external transmitter / receiver assembly is a second acoustic transducer disposed against the external wall of the external tube .
    According to another characteristic of the invention, the first internal transmitter / receiver assembly is a first acoustic transducer fixed against the external wall of the internal tube and the second external transmitter / receiver assembly is a second acoustic transducer disposed against the internal wall of the internal tube .
    Advantageously, the first and second transducers are shaped to the curvature of the respectively internal and external wall of the external tube.
    Advantageously also, the first transducer comprises a sensor for measuring the physical quantity associated with acquisition electronics and the second transducer comprises an external communication module associated with an interface for receiving or transmitting information.
    According to yet another characteristic of the invention, the first and second transmitter / receiver assemblies are constituted by electromagnetic induction loops.
    According to yet another characteristic of the invention, the first transmitter / receiver assembly is supplied with energy using batteries.
    The invention also relates to the use of an acoustic transducer system for non-intrusively determining the state of a ring finger closed under reduced pressure of a section of double-walled pipe as defined above.
    Advantageously, the use of the transducer system for the study of the ring finger of a section of double-envelope pipe is carried out in a high temperature, cryogenic environment or subjected to an aging cycle.
    Advantageously, the use of the transducer system is applied to the study of the ring finger of a very long double envelope pipe section where it is desired to monitor the pressure in the ring finger at several points along the pipe. .
    In the use according to the invention the transducers are conformed to the curvature of the wall of the external tube.
    A very first advantage of the present invention lies in the fact that for the first time it is possible to access the ring finger under reduced pressure of a double-walled pipe in order to obtain information on the pressure, the temperature, the hygrometry or other physical quantities.
    Another advantage of the invention lies in the fact that there is no alteration of the external tube to determine the value of the physical quantities to be measured.
    Yet another advantage of the invention lies in the fact that the measurements can be carried out during the entire lifetime of the double-walled pipe.
    Yet another advantage of the present invention lies in the offer of quality monitoring of factory production.
    Yet another advantage of the present invention lies in the possibility of carrying out the long-term qualification tests of a double-walled pipe. In particular, it is possible to ensure a measurement of the reduced pressure over periods of the order of the year or even several years to ensure the lifetime of this reduced pressure present in the annular of the pipe.
    Other characteristics, advantages and details of the invention will be better understood on reading the additional description which follows of embodiments given by way of example in relation to the drawings in which:
    FIG. 1 represents the structure of the device according to the invention,
    FIG. 2 illustrates an alternative embodiment of the device according to the invention,
    FIG. 3 illustrates the installation of the device in the ring finger of a double-envelope pipe, and
    - Figure 4 illustrates a functional system by electromagnetic communication.
    In the following description, a section of double-walled pipe or a double-walled pipe will be mentioned without distinction.
    The invention will now be described in more detail. As explained above when the ring finger of a double-envelope pipe section is closed, it is no longer possible to access it. The pipe in question consists of a number of elementary sections, for example 12 or 24 m or other lengths, connected together to form pipes of 1 to 10 km.
    Conventionally, each section of the pipe comprises an internal tube inside which the fluid in question circulates and an external tube delimiting between them an annular. This annular is lined in particular with an open-pore thermal insulating material based on silica or with an anti-radiation multilayer assembly. Each annular of each section is thus closed and sealed at the two ends of the two tubes and constitutes an enclosed space. This closed space is small and can be between 4 and 10 mm for tubes with a diameter of less than 150 mm, between 8 and 25 mm for tubes with a diameter of less than 400 mm and less than 60 mm for tubes of more large diameter.
    To increase the thermal performance of the thermal insulation and therefore of the double-walled pipe, the pressure of this enclosed space is reduced. During the manufacture of these sections, the pressure reduction is carried out just before hermetically closing the ring finger. Reduced pressure is understood to mean a pressure below atmospheric pressure, for example 100 mbar.
    In order to move from an estimate of the pressure to a concrete measure and enough in the ring finger to make a precise one, we proceed as follows
    In FIG. 1, there is an external and the tube partially shows the internal tube 2 of a double envelope pipe provided with the device for measuring a physical quantity of the pressure, hygrometry, temperature or other type, in the closed annular 3 under reduced pressure. These tubes 1 and 2 are generally metal tubes.
    This device consists of a first communication transmitter / receiver assembly 4 and a second communication transmitter / receiver assembly 5 each arranged opposite one another and on either side of the outer tube 1. The first assembly 4 is arranged in the annular 3 against the internal wall of the external tube 1 while the second assembly 5 is applied against the external wall of this external tube as will be explained below.
    Advantageously, the first internal transmitter / receiver assembly 4 is a first acoustic transducer fixed against the internal wall of the external tube and the second external transmitter / receiver assembly 5 is a second acoustic transducer disposed against the external wall of the external tube.
    The first transmitter / receiver assembly 4 comprises a sensor 10 for measuring the physical quantity associated with acquisition electronics 6, a data storage memory 7, an energy source 9, for example batteries, and an internal module wireless communication communication 8 through the steel wall of the tube. The sensor 10 is a gauge for measuring the pressure, and / or the temperature, and / or the hygrometry, prevailing in the ring finger 3. The sensor 10 is capable of operating in the ranges of pressure, temperature and relative to the desired application.
    This first transducer assembly is of course in the form of a compact structure which is held against the internal wall of the tube 1, for example using a magnet not shown, or any other equivalent means ensuring good mechanical contact . For this, this assembly is shaped according to the concavity of the internal wall 14 of the external tube 1 by marrying it in a narrow manner as can be seen in FIG. 2. Since it is a generally cylindrical wall 14 , the cover of the assembly 4 will be adapted without significant difficulty. It goes without saying that the adhesion of the assembly 4 to the internal wall 14 can be achieved by any means which does not affect the integrity of this wall, for example using a magnet, or by bonding or pressing with a spring.
    It goes without saying that the assembly 4 is placed in the annular 3 of the double envelope pipe during the manufacture of the latter and before the complete closure of this annular. The size of this assembly 4 is intended to be placed in the ring finger whose space is of the order of 4 to 60 mm. The communication module 8 also incorporates a high frequency oscillator to communicate by ultrasound through the wall of the tube 1, for example by means of a piezoelectric ceramic.
    It also goes without saying that the position of the assembly 4 is identified during the manufacture of the pipe by a marking means 16 easily identifiable on the external surface 15 of the tube 1 or by precise ribs from a characteristic element. of the double envelope pipe. Of course, a predetermined point of the outer tube will easily be determined from which the means 16 will be positioned.
    This identification by marking or measurement of dimensions will be carried out with the tolerance necessary for the technology of transmission of the selected data. Thus, the acoustic transducers of Example 1 must be positioned on either side of the metal wall of the tube 1, facing each other, with a tolerance of the order of 0.5 mm to 5 mm.
    The second transmitter / receiver assembly 5 comprises an external communication module 12 associated with an interface 11 for receiving or transmitting information. This second set 5 makes it possible to read the measurements of the physical quantities via a computer 13, for example using a USB link. Thus, outside of the ring finger 3, an operator can interrogate the sensor part 10 thanks to the transmission 8 / reception system 12 which receives the data recorded in the memory 7.
    Similarly, the second set 5 is shaped to the external wall 15 of the external tube 1 by matching its shape so as to position the transmitter / receiver 8 and 12 vis-à-vis each other during the measurement. . This assembly 5 is of course either removable during measurement in the workshop or permanent if it is desired to follow the various measurements during the life of the pipe.
    By way of example, the application desired in the invention can recover a temperature between 20 and 150 ° C. and a reduced pressure of ICC 5 to 10,000 Pa. As for the humidity, it goes without saying that must be as low as possible or even zero.
    During use, the non-intrusive measurements of the pressure, the temperature or the humidity prevailing in the ring finger 3 of a double-envelope pipe are transmitted by ultrasound through the thickness of the external tube 1, which does not involve any crossing of it and therefore no intrusive operation. Thus, no connecting wire between the interior and the exterior is used to allow communication between the detector in the ring finger and the exterior reader. This has the advantage of not weakening the wall of the outer tube because the double-walled pipes are used in environments with high hydrostatic pressures (seabed or oil well) and the use of a wall crossing leads to leaks or weakening of the wall of the outer tube, which will be less resistant to hydrostatic pressure or chemical stresses.
    The use of the transducer system according to the invention in the annulars of thermally insulated pipes with a double envelope allows continuous monitoring of each physical quantity in the annular necessary for the operator. On the other hand, the measurement is almost instantaneous, unlike the measurements by thermal test which require an implementation time of the order of 1 to 3 days. Thus, an instantaneous measurement of the pressure in the ring finger makes it possible to indicate the pressure reached and to determine if the product meets the specification of the product.
    Finally, the invention allows long-term measurements during a high temperature test, an aging test, a test on very long annulars of the type of jacketed / uncoiled pipes, pipes for land transport of oils. , emulsion or steam, heat-insulated coiled tubings used in oil well applications, very long lines.
    In Figure 2, there is shown an alternative embodiment of the device according to the invention, the references of identical elements being preserved. In this embodiment, the measurements are carried out on the internal side of the pipe section. To this end, the first internal transmitter / receiver assembly 4 is a first fixed acoustic transducer which remains in the ring finger 3. It is disposed against the external wall of the internal tube 2. The second external transmitter / receiver assembly 5 is a second transducer acoustic placed outside the ring finger 3 and inside the inner tube 2. It is disposed against the inner wall of the inner tube 2. It is obvious that the computer 13 is arranged outside the tube internal 2 so as to be able to carry out the measurements as explained in relation to FIG. 1.
    In Figure 3, there is shown an embodiment of the device according to the invention. We see the double envelope pipe consisting of the inner tube 2 inserted in the outer tube 1 delimiting between them the ring finger 3. We see that the assembly 4 is made integral with the inner wall of the outer tube 1 at any point of this one. As indicated above, the position of this assembly 4 must be identified with the necessary tolerances by temporary or permanent marking of the external wall 15 of the tube 1.
    ίο
    On the outer wall of the tube 1, the assembly 5 is positioned during the measurement of the assembly 5 vertically from the assembly 4 by means of the marking made on the outer wall of the outer tube or by using, as indicated above, the ribs defined during the installation of the assembly from a specific point in the double-walled pipe. This point can for example be the end of this double-envelope pipe.
    It goes without saying that the assembly 5 is supplied with energy in a conventional manner outside the pipe. The information delivered by the assembly 5 is as indicated above processed by the computer 13 while making it possible to verify that the signal is indeed transmitted and that the measurement is started.
    FIG. 4 shows a functional diagram of the measurement system by electromagnetic communication which is strictly equivalent to that described in relation to FIGS. 1 and 2. We find the assembly 4 made up of the same elements, namely the battery 9, the detector 10, the memory 7 and a microcontroller 17 and the electromagnetic wave generator 18. Similarly, the assembly 5 comprises a microcontroller 20, a receiver 19 of the electromagnetic waves and a means of control 21 of the USB link .
    measurement system being internal transmitter / receiver
    权利要求:
    Claims (9)
    [1" id="c-fr-0001]
    1. Double envelope pipe section (1, 2) comprising a closed annular (3) under reduced pressure delimited by an internal metal tube (2) inserted in an external metal tube (1) and equipped with a measuring system to determine non-intrusively the state of the ring finger (3), the compound of a first assembly (4) disposed inside the ring finger (3) and cooperating with a means of measurement (10) of a physical quantity such as pressure, hygrometry or temperature prevailing in the ring finger (3) under reduced pressure and of a second external transmitter / receiver assembly (5) disposed outside of the section opposite said first set (4).
    [2" id="c-fr-0002]
    2. double envelope pipe section (1, 2) according to claim 1, characterized in that it comprises a locating means (16) of the position of said first assembly (4) disposed on the outer wall of the outer tube (1 ) from a predetermined point on the latter.
    3. Section double jacket pipe d, 2) according to claim 1 or 2, characterized in than the first internal transmitter / receiver assembly (4) East a first
    acoustic transducer fixed against the internal wall of the external tube (V and in that the second external transmitter / receiver assembly (5) is a second acoustic transducer disposed against the external wall (D ·
    of tube external d, 2) according to than the first East a first
    internal transmitter / receiver assembly (4) acoustic transducer fixed against the external wall of the internal tube (2:
    and in that the second external transmitter / receiver assembly (5) is a second acoustic transducer disposed against the internal wall of the internal tube (2).
    [3" id="c-fr-0003]
    5. double envelope pipe section (1, 2) according to claim 3 or 4, characterized in that the first and second transducers (4, 5) are shaped to the curvature of the inner and outer wall respectively of the outer tube (1 ) or the inner tube (2).
    [4" id="c-fr-0004]
    6. double envelope pipe section (1, 2) according to any one of claims 3, 4 or 5, characterized in that the first transducer measures (10) of the electronic acquisition quantity (6) (4) comprises a physics sensor associated with one and in that the second transducer (5) comprises an external communication module (11) associated with an interface (12) for receiving or transmitting information.
    [5" id="c-fr-0005]
    7. double envelope pipe section (1, 2) according to claim 1 or 2, characterized in that the first and second transmitter / receiver assemblies (4, 5) are constituted by electromagnetic induction loops.
    [6" id="c-fr-0006]
    8. double envelope pipe section (1, 2) according to any one of the preceding claims, characterized in that the first transmitter / receiver assembly (4) is supplied with energy using batteries.
    [7" id="c-fr-0007]
    9. Use of an acoustic transducer system for non-intrusively determining the state of a ring finger (3) closed under reduced pressure of a section of double-walled pipe (1, 2) according to any one of claims 1 to 6.
    [8" id="c-fr-0008]
    10. Use of the transducer system according to claim 9 for the study of the ring finger (3) of a section of double jacket pipe (1, 2) disposed in a high temperature environment or subjected to an aging cycle.
    [9" id="c-fr-0009]
    11. Use of the transducer system according to claim 9 or 10 for the study of the ring finger (3) of a double-walled pipe section (1, 2) of very great length.
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    同族专利:
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    GB2561069A|2018-10-03|
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    FR3063793B1|2019-11-01|
    GB2561069B|2020-03-11|
    引用文献:
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    US10100634B2|2015-09-18|2018-10-16|Baker Hughes, A Ge Company, Llc|Devices and methods to communicate information from below a surface cement plug in a plugged or abandoned well|CN110067945B|2019-04-28|2020-11-10|徐州轩科农业机械有限公司|A leak hunting is deepened and is repaired equipment for closestool inner tube in bathroom cleaners and polishes|
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    法律状态:
    2018-03-29| PLFP| Fee payment|Year of fee payment: 2 |
    2018-09-14| PLSC| Search report ready|Effective date: 20180914 |
    2019-03-29| PLFP| Fee payment|Year of fee payment: 3 |
    2020-03-27| PLFP| Fee payment|Year of fee payment: 4 |
    2021-03-29| PLFP| Fee payment|Year of fee payment: 5 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1770244|2017-03-13|
    FR1770244A|FR3063793B1|2017-03-13|2017-03-13|DUAL ENVELOPE DUCT STRING AND USE OF AN ACOUSTIC MEASURING TRANSDUCER SYSTEM IN REDUCED PRESSURE ANNULAR|FR1770244A| FR3063793B1|2017-03-13|2017-03-13|DUAL ENVELOPE DUCT STRING AND USE OF AN ACOUSTIC MEASURING TRANSDUCER SYSTEM IN REDUCED PRESSURE ANNULAR|
    CA2994084A| CA2994084A1|2017-03-13|2018-02-05|Double walled conduit section and use of an acoustic measurement transducer system in a reduced-pressure ring|
    GB1801981.0A| GB2561069B|2017-03-13|2018-02-07|A segment of pipe-in-pipe pipeline and the use of an acoustic transducer measurement system for the reduced pressure annulus|
    US15/920,021| US10451209B2|2017-03-13|2018-03-13|Segment of pipe-in-pipe pipeline and the use of an acoustic transducer measurement system for the reduced pressure annulus|
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