• 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:
    A down-hole signal generator for a mud-pulse telemetry system comprises a flow constrictor defining a throttle orifice for the mud passing along a drill string, a throttling member displaceable with respect to the throttle orifice to modulate the mud pressure for the purpose of transmitting measurement data up the drill string, and a turbogenerator. The turbogenerator incorporates an annular impeller surrounding a casing and arranged to be driven by the mud passing along the drill string, and a rotatable magnet assembly disposed in a mud-free environment within the casing. The impeller includes an electrically conductive drive ring and the rotatable magnet assembly includes rare earth magnets, so that, when the impeller is rotated by the mud flow, eddy currents are induced in the drive ring by the magnetic field associated with the magnets and the magnet assembly is caused to rotate with the impeller by virtue of the interaction between the magnetic field associated with the magnets and the magnetic field associated with the induced currents. In this manner torque may be imparted to an electrical generator within the casing without a rotating seal having to be provided between the impeller and the generator.
    公开号:SU1199204A3
    申请号:SU813325249
    申请日:1981-08-26
    公开日:1985-12-15
    发明作者:Уильям Рассел Энтони；Кинг Рассел Майкл
    申请人:Нл Сперриг Сан,Инк (Фирма)；
    IPC主号:
    专利说明:

    2, Transmitter ito p. 1, that is, that the electrically conductive ring has a ring of electrically conductive material surrounded by a ring of ferromagnetic material, creating a circulating path for the magnetic flux. A 3. Transmitter according to claim 1, characterized in that the magnetizing ring is a hysteresis ring. 4. Transmitter according to claim 1, characterized in that the magnets are made of samaryvaevo-cobalt material.
    The invention relates to a device for supplying signals to a borehole during drilling, and relates to a borehole signal transmitter for a telemetry system for drilling mud pulping. The purpose of the invention is to increase reliability. FIG. I shows the upper part of the transmitter, a longitudinal section; in fig. 2 central transmitter section, longitudinal section; in fig. 3 shows the lower part of the transmitter, a longitudinal section in FIG. 4 shows the lower part, longitudinal section A-A in FIG. 3, the transmitter contains a channel 1, on the upper end of which a circular confuser 2 is formed, forming an orifice 3 for a drilling mud; downstream of the drill string in the direction of arrow 4. Inside Channel 1 there is an elongated casing 5 carrying at its upper end, near the throttle hole 3, a throttle element 6 that can be displaced relative to the casing 5 in the direction of the axis of the channel 1 to change the flow cross section the throttle hole 3. The throttle element 6 is provided with a shaft 7, which extends into the casing 5, and the space inside the casing 5 is filled with oil, in order to balance the hydrostatic pressure, is sealed at the upper end of A diaphragm 8 extending between the inner side of the wall of the casing 5 and the shaft 7. The casing 5 is rigidly mounted inside the channel 1 by means of the three upper support bars 9 and the three lower support bars 10 going in the radial direction between the casing 5 and the channel to provide an annular the gap between the casing 5 and the channel 1 for the mud flow. An annular pumping wheel II, having a row of blades 12 distributed along its periphery and arranged at an angle to the mud flow, surrounds the casing 5 and is held on the casing shoulder 13 by means of polytetrafluoroethylene filled (TRKE thrust bearing 14. The blades 12 are mounted on a magnetisable steel lug 15 which surrounds the copper drive ring 16. The rare-earth magnetic assembly I7 is held by an annular shaft 18, allowing it to rotate, mounted inside the case 5 by means of a bearing s, for example, 19, and contains six S, Co (samarium-cobalt) magnets 20 distributed along the periphery of the shaft 18. For three magnets 20, the north pole faces outward in the radial direction, and for the other three magnets 20 alternating with the previous three magnets 20 , the south pole is facing outward in the radial direction. When the pumping wheel 11 rotates in the mud flow, the eddy currents will be excited in the copper driving ring 16 by means of an intense magnetic field connected to six magnets 20 of S, Co, while making the Mbiii steel the protrusion 15 provides a return path for the magnetic flux FOR1, the magnetic node 17, and hence the shaft 18, will be forced to rotate with the pump wheel 11 through the interaction between the magnetic field associated
    with magnets 20 and magnetic field associated with eddy currents excited in drive ring I6.
    The annular shaft 18 drives the rotor 21 of the electric generator 22 to supply energy to the measurement equipment by means of a circular output plate 23 pivotally mounted inside the shaft 18 by means of rotary pins 21 and a torque transmission lever 25 attached to the periphery of the plate 23 and positioned like to engage with a drive pin 26 attached to the periphery of the rotor 2I. In addition, the annular shaft 18 drives the hydraulic pump 27 by means of an angled plate 28 and interconnected plate 29 of the piston support, provided with a raceway 30.
    The hydraulic pump 27 comprises eight cylinders 31, running parallel to the axis of the casing 5 and spaced apart from each other in the angular direction, and the corresponding pistons 32 interconnected with each cylinder 31. The lower end of each piston 32 is constantly shifted in engagement position with the stop plate 29 by means of a corresponding piston return spring 33, so that rotation of the plate 28 with the shaft 18 causes the pistons 32 to make a reciprocating axial movement inside the cylinders 31, while the eight pistons 32 reciprocate cyclically Forward movement, so that when some pistons are at the top of their stroke, the diametrically opposite pistons will be at the bottom of the stroke and vice versa. In addition, the pump 27 contains a rotating valve element 34 mounted on bearings 35 and designed to synchronously rotate with the plate 28 so as to feed the performance of each cylinder 3I alternately to one side of the double acting plunger 36 located inside the cylinder 37. The double plunger 36 action connected to the shaft 7 of the throttle element 6 by means of the output shaft, so that the throttle element 6 can be shifted by the pump 27 to change
    92044
    throttle bore cross section 3.
    The hydraulic oil, which fills the casing 5 and which is supplied to each of the cylinders 31 on one side of the double acting platform 36, is forcibly supplied by the interconnected piston 32 to the corresponding axial boring 38 in the valve body 39, which surrounds the rotating valve element 34 during the course piston 32 up. Each of the axial bores 38 is intersected by a corresponding upper radial bore 40 and a corresponding lower radial bore 41. Rotating valve element 34 is provided with an upper peripheral recess 42 that extends around the periphery of valve element 34 on an arc of approximately 180 ° and also extends to the top of the valve element 34 to the lower part 43 of the cylinder 37 under the plunger 36 and the lower, peripheral recess 44, which extends at the periphery of the valve element 34 on an arc approximately I80 on the opposite side of the valve element 34 relative to the upper peripheral recess 42, and which in its upper zone also extends into the central annular recess 45 formed in the valve element 34. The central annular recess 45 is constantly held hydraulically communicated with the annular channel 46 surrounding the cylinder 37 and the housing 39 valve through radial channels (not shown), going through the valve housing 39. The annular channel 46 itself is hydraulically communicated with the upper part 47 of the cylinder 37 above the plunger 36.
    There are two possible phases of rotation of the rotating element 34 in the direction of rotation of the plate 28, namely the first phase of rotation, in which the upper peripheral recess 42 communicates with the upper radial bores 40 when the associated pistons 32 move upwards and the lower peripheral recess 44 communicates with the lower radial bores 41 during the course of the associated pistons 32 downward, and the second phase of rotation, in which the upper peripheral recess 42 communicates with the upper radial bores 40 during the course of
    the associated pistons 32 are downward, and the lower peripheral recess 44 is in communication with the lower radial bores 41 as the associated pistons 32 run upward. Thus, during the first phase of rotation of the valve element 34, the inlet of the pump 27 will be connected to the upper part 47 of the cylinder 37, and the outflow of the pump 27 will be connected to the lower part of the cylinder 37, so that the plunger 36 and, therefore, the throttle element 6 will move up . On the contrary, during the second phase of rotation of the valve element 34, the inlet of the pump 27 will be connected to the lower part of the cylinder 37, and the outlet of the pump 27 will be connected to the upper part 47 to the cylinder 37, so that the plunger 36 and the throttle element 6 will move down.
    The rotating valve member 34 is connected to a torque sensing actuator comprising a circular drive plate 48 opposite the output plate 23 by means of a drive shaft 49 mounted to allow rotation inside the annular shaft 18 by bearings 50. The drive plate 48 at the periphery is provided an additional driving finger 51, which engages the first output finger 52 in the first rotational position on the periphery of the output plate 23 in order to would cause a reduction in the movement of the valve member 34 via the shaft 18 in the second rotational phase. The stretching spring 53 shifts the output plate 23 to a first angular position. For relatively low electrical loads applied to the output of the nerator 22, the output plate 23 will drive and drive plate 48 in the first phase of rotation through the first output pin 52, and will also drive the rotor 21 of the generator 22 through 25 of the moment. However, if the load on the generator increases to the point where the torque required to drive the rotor 21 is sufficient to overcome the displacement of the spring 53, the torque transfer lever 25 will be forced to tilt the output plate 23 to its second angular position opposite to the action of the spring 53. This will cause the first output pin 52 to disengage from the driving pin 51 of the drive plate 48, and the second output pin 54 to engage the drive pin 51 after
    the output plate 23 is rotated 180 ° relative to the drive plate 48. This will force the drive plate 48 to move in the second phase of rotation by
    the second output finger 54, and-; giving the working fluid from the pump 27 to the double action plunger 36 will be reversed. Of course, if the generator load is consistent
    reduced sufficiently, the spring 53 will tilt the output plate 23, back to its first angular position and the drive plate 48 will again be set in motion in
    the first phase of rotation.
    Therefore, it can be estimated that if the measurement data by the measuring equipment is such as to suitably change the electrical load of the generator 22, the rotational phase of the rotating valve element 34 and therefore the direction of bias of the double acting plunger 36 will be changed by the output signal of the measuring equipment. This, in turn, will force the throttle element 6 to move relative to the throttle hole 3 to modulate the pressure of the mud flow upward from the throttle hole 3 and create a series of pressure pulsations corresponding to the measurement data that will move up in the mud flow and can be perceived You are on the surface of the pressure transducer near the outlet of the pump, creating a flow of drilling fluid. Consequently, this device allows digitally transmitted data to the surface.
    权利要求:
    Claims (4)
    [1]
    1. DRILL SIGNAL TRANSMITTER, for a telemetric drilling fluid pulsation system, comprising a confuser, a throttle element, a throttle element control unit, a turbogenerator with an impeller, an electric generator located in the casing, characterized in that, in order to increase the reliability of operation, the turbogenerator is provided located in the casing and connected to the electric generator by a rotating magnet, consisting of alternating rows of magnets with poles of opposite polarity, facing the cradle in a radial systematic way, the impeller has an electrically conductive ring formed of electrically conductive material, or a magnetic ring made of magnetic material.
    1 199204
    [2]
    2. Transmitter iop. 1, with the exception that the electrically conductive ring has a ring of electrically conductive material surrounded by a ring of ferromagnetic material that creates a return path for the magnetic flux.
    [3]
    3. The transmitter according to π. I, characterized in that the magnetizable ring is a hysteresis ring.
    [4]
    4. Transmitter by π. 1, characterized in that the magnets are made of samariva-cobalt material.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1199204A3|1985-12-15|Borehole signal transmitter
    US4675852A|1987-06-23|Apparatus for signalling within a borehole while drilling
    US7250873B2|2007-07-31|Downlink pulser for mud pulse telemetry
    US6626253B2|2003-09-30|Oscillating shear valve for mud pulse telemetry
    US4956823A|1990-09-11|Signal transmitters
    US4535429A|1985-08-13|Apparatus for signalling within a borehole while drilling
    RU2581616C2|2016-04-20|Determination of downhole natural-pressure motor rpm
    US20050260089A1|2005-11-24|Reciprocating pulser for mud pulse telemetry
    US6234259B1|2001-05-22|Multiple cam directional controller for steerable rotary drill
    CA2440815A1|2002-09-19|Hydraulically balanced reciprocating pulser valve for mud pulse telemetry
    GB2489628A|2012-10-03|Fluid flow telemetry using magnetic motion converter
    US4725197A|1988-02-16|Devices for imparting rotary motion
    RU2256794C1|2005-07-20|Face telemetry system with hydraulic communication channel
    US4636995A|1987-01-13|Mud pressure control system
    GB2087951A|1982-06-03|Apparatus for signalling within a borehole while drilling
    CN204436373U|2015-07-01|A kind of underground high-power is powered mud signal generator
    GB2082653A|1982-03-10|Apparatus for signalling within a borehole while drilling
    GB2137260A|1984-10-03|Improvements in or relating to apparatus for signalling within a borehole while drilling
    GB2407598A|2005-05-04|Transmitting information down hole using a pulser
    SU1490268A1|1989-06-30|Arrangement for transmitting hole-bottom data via hydraulic communication channel
    GB2123458A|1984-02-01|Improvements in or relating to apparatus for signalling within a borehole while drilling
    同族专利:
    公开号 | 公开日
    NO154674B|1986-08-18|
    IT8123575D0|1981-08-20|
    NO154674C|1987-01-07|
    IT1139400B|1986-09-24|
    US4802150A|1989-01-31|
    DE3132820A1|1982-06-09|
    FR2494340A1|1982-05-21|
    JPS642757B2|1989-01-18|
    BR8105394A|1982-08-31|
    CH644184A5|1984-07-13|
    NL8103974A|1982-06-16|
    JPS5789093A|1982-06-03|
    CA1165854A|1984-04-17|
    FR2494340B1|1986-08-29|
    DE3132820C2|1991-03-14|
    NO812775L|1982-05-21|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2557270C1|2011-11-14|2015-07-20|Хэллибертон Энерджи Сервисиз, Инк.|Device and method for obtaining of data transmission impulses in drilling column|US30246A|1860-10-02|Island |
    US2700131A|1951-07-20|1955-01-18|Lane Wells Co|Measurement system|
    FR1603706A|1968-05-15|1971-05-24|Transmitting measurements from bottom ofa borehole |
    FR2096920B1|1970-07-16|1974-02-22|Aquitaine Petrole|
    FR2117726B1|1970-12-10|1973-12-07|Aquitaine Petrole|
    US3705603A|1971-06-16|1972-12-12|Mobil Oil Corp|Drive train for logging-while-drilling tool|
    US3867714A|1973-04-16|1975-02-18|Mobil Oil Corp|Torque assist for logging-while-drilling tool|
    FR2271576B1|1974-05-17|1978-11-17|Mayer Ferdy|
    US3983948A|1974-07-01|1976-10-05|Texas Dynamatics, Inc.|Method and apparatus for indicating the orientation of a down hole drilling assembly|
    FR2375432B1|1976-01-28|1982-08-13|Schlumberger Prospection|
    JPS53146057A|1977-05-20|1978-12-19|Vibrac Corp|Magnetic torque coupling|
    US4184090A|1977-10-13|1980-01-15|Nova Research Foundation Corporation|Rotary magnetic isolation coupling|US5073877A|1986-05-19|1991-12-17|Schlumberger Canada Limited|Signal pressure pulse generator|
    DE3926908C1|1989-08-16|1990-10-11|Eastman Christensen Co., Salt Lake City, Utah, Us|
    US5020609A|1990-03-12|1991-06-04|Jeter John D|Acceleration compensating system|
    US6672409B1|2000-10-24|2004-01-06|The Charles Machine Works, Inc.|Downhole generator for horizontal directional drilling|
    US7417920B2|2001-03-13|2008-08-26|Baker Hughes Incorporated|Reciprocating pulser for mud pulse telemetry|
    US6898150B2|2001-03-13|2005-05-24|Baker Hughes Incorporated|Hydraulically balanced reciprocating pulser valve for mud pulse telemetry|
    US7347283B1|2002-01-15|2008-03-25|The Charles Machine Works, Inc.|Using a rotating inner member to drive a tool in a hollow outer member|
    US6739413B2|2002-01-15|2004-05-25|The Charles Machine Works, Inc.|Using a rotating inner member to drive a tool in a hollow outer member|
    DE10251496B4|2002-11-04|2005-11-10|Precision Drilling Technology Services Gmbh|Device for generating electrical energy and pressure pulses for signal transmission|
    US20050139393A1|2003-12-29|2005-06-30|Noble Drilling Corporation|Turbine generator system and method|
    CA2476787C|2004-08-06|2008-09-30|Halliburton Energy Services, Inc.|Integrated magnetic ranging tool|
    US20070023718A1|2005-07-29|2007-02-01|Precision Energy Services, Ltd.|Mud pulser|
    US8297375B2|2005-11-21|2012-10-30|Schlumberger Technology Corporation|Downhole turbine|
    US7571780B2|2006-03-24|2009-08-11|Hall David R|Jack element for a drill bit|
    US8522897B2|2005-11-21|2013-09-03|Schlumberger Technology Corporation|Lead the bit rotary steerable tool|
    US8408336B2|2005-11-21|2013-04-02|Schlumberger Technology Corporation|Flow guide actuation|
    US8360174B2|2006-03-23|2013-01-29|Schlumberger Technology Corporation|Lead the bit rotary steerable tool|
    US8174929B2|2007-07-02|2012-05-08|Schlumberger Technology Corporation|Spindle for mud pulse telemetry applications|
    US7434634B1|2007-11-14|2008-10-14|Hall David R|Downhole turbine|
    US20100101781A1|2008-10-23|2010-04-29|Baker Hughes Incorporated|Coupling For Downhole Tools|
    US8138647B2|2010-02-05|2012-03-20|Salvesen Richard S|Pulse adapter assembly|
    US9024777B2|2010-12-09|2015-05-05|Schlumberger Technology Corporation|Active compensation for mud telemetry modulator and turbine|
    US9091123B2|2012-02-02|2015-07-28|Cougar Drilling Solutions Inc.|Method and apparatus for creating a pressure pulse in drilling fluid to vibrate a drill string|
    DE102016102315A1|2016-02-10|2017-08-10|Technische Universität Bergakademie Freiberg|telemetry device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    GB8037213|1980-11-20|
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