CN1730896A - A kind of strapdown type stable platform apparatus - Google Patents
A kind of strapdown type stable platform apparatus Download PDFInfo
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- CN1730896A CN1730896A CN 200510044509 CN200510044509A CN1730896A CN 1730896 A CN1730896 A CN 1730896A CN 200510044509 CN200510044509 CN 200510044509 CN 200510044509 A CN200510044509 A CN 200510044509A CN 1730896 A CN1730896 A CN 1730896A
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Abstract
A kind of strapdown type stable platform apparatus that in petroleum drilling engineering, is used to realize rotary steerable drilling, it comprises power supply pipe nipple, observing and controlling pipe nipple and servo pipe nipple, strapdown type stable platform connects firmly on drill collar.The power supply pipe nipple is a TRT and/or one or more batteries, and servo pipe nipple comprises a rotary transformer and a motor.It is bigger that this strapdown type stable platform apparatus has output torque, and be not subjected to the influence of mud displacement, not only can accurately realize rotary steering, and can be in the down-hole reliable and stable work.
Description
Technical field:
The present invention relates to a kind of strapdown type stable platform apparatus that in petroleum drilling engineering, is used to realize rotary steerable drilling.
Background technology:
The variation of drilling mode demand impels drilling tool also constantly improving.Early stage straight well drilling well, used downhole tool mainly is for " deviation control with drilling straight well ".Traditional anti-oblique well straightening combination tool has tower drilling assembly, pendulum assembly, packed hole assembly, the combination of decentralized drill collar anti-deflection drilling tool, HCY preventing slant to put.More novel anti-oblique well straightening drilling assembly mainly contains based on flexible string assembly, the wammel of theory of mechanics analysis and depresses the anti-oblique model of drill string spiral flexing and whirling motion power, efficiently anti-oblique technology joint.Along with the production application of directional well, horizontal well drilling technology is increasing, various corresponding down-holes steering tool occurs in succession.What use in early days is that rotating disk creeps into deflecting tool, and as whipstock, sleeve position controller and various special construction drill bits etc., what be most widely used at present is mud motor.Utilize the available dynamic guiding technique to be unfavorable for the selection of PDC drill bit, the existence of big frictional resistance strengthens the control difficulty of downhole tool face under " slip " mode, can not realize that the big displacement of well extends, and to the accurate control of well track.For high angle hole and extended reach well, drilling tool powered by conventional energy has been difficult to even may not satisfy the demand, thereby the downhole tool of continuous rotary steering occurred.Finish the bad hole track, especially really realize downhole closed loop control, the tradition drilling tool can not meet the demands, the comprehensive more flexibly adjustable rotary steering downhole tool of necessary development, its core are the stable platform apparatus that can act on making a concerted effort of drill bit or change drilling tool eccentric degree under rotation status by control instruction action change.
Disclose a kind of single axle stable platform apparatus that is used for the rotary steering system among the british patent specification GB2298217 (announcement on August 28th, 1996), mainly comprised torque generator and control element chamber two parts.The control element chamber is equipped with measuring cell, telemetry circuit and down-hole micro computer.A single-stage axial rotor is equipped with in the pressure chamber outside of torque generator part, has permanent magnetic pole on the rotor structure body.Under drilling fluid drives, the rotor rotation, thus form a rotating excitation field.Armature winding is equipped with in pressure chamber inside at torque generator.In case closing of circuit just has electric current to exist in the winding.On Control Shaft under the effect of rotating excitation field, just exist one with the equidirectional torque of rotating excitation field.This torsional interaction changes the space gyrobearing of stabilized platform on Control Shaft, thereby the implementation space is stable.But relatively rotate owing to have between this stable platform apparatus and the drill collar, the bearing at platform and generator two ends is immersed in the drilling fluid, so serious wear, the life-span is shorter, and the output torque of this single axis stable platform is less relatively.In addition, the output torque of this device is influenced by mud displacement directly; Because this single axle stable platform apparatus structure is longer, so the axiality of installing in pipe is difficult to guarantee.
Summary of the invention:
The object of the present invention is to provide the bigger strapdown type stable platform apparatus of a kind of output torque.
The objective of the invention is to be achieved through the following technical solutions:
A kind of strapdown type stable platform apparatus, it comprises power supply pipe nipple, observing and controlling pipe nipple and servo pipe nipple, described strapdown type stable platform apparatus connects firmly on drill collar, that is to say that this strapdown type stable platform apparatus can not relatively rotate with respect to drill collar.
Described power supply pipe nipple can be a TRT and/or one or more batteries.When this power supply pipe nipple was a TRT, impeller was fixed on the power supply pipe nipple driving shaft of power supply pipe nipple, at the inlet of impeller filter was installed, and between impeller and the drill collar guide shell was housed.Described servo pipe nipple comprises rotary transformer and motor, and rotary transformer is used to detect the dimensional orientation of servo pipe nipple driving shaft, and institute's interception signal is passed to the observing and controlling pipe nipple.The rotor coil of power supply pipe nipple and servo pipe nipple and stator coil and rotary transformer all are immersed in the hydraulic oil.
The following of motor at servo pipe nipple can be connected in series one or more gearboxes, to change the tool output torque.
The beneficial effect that strapdown type stable platform apparatus of the present invention has is, this structure is to connect firmly in drill collar, so two ends do not need to be used for rotatably supported parts of bearings, thereby have strengthened the functional reliability of stable platform apparatus, and require lower to axiality; Adopt the pattern of motor output drive strength square in this structure, thereby output torque is big, and is not subjected to the influence of drilling fluid displacement; Impeller just provides necessary rotating speed for the generating of power supply pipe nipple, so need that no longer it is had accurately controlled torque demand; Generator in the power supply pipe nipple and motor, the rotary transformer in the servo pipe nipple are all worked in hydraulic oil, thereby have reduced the manufacture difficulty of generator, rotary transformer and motor, have increased functional reliability.This invention not only can accurately realize rotary steering, and can be in the down-hole reliable and stable work.
Description of drawings:
Fig. 1 is the real-time drilling process sectional drawing that strapdown type stable platform apparatus of the present invention is housed;
Fig. 2 is the schematic diagram of strapdown type stable platform apparatus;
Fig. 3 is the sectional drawing of strapdown type stable platform apparatus;
Fig. 4 is the sectional drawing of centralizer on the strapdown type stable platform apparatus;
Fig. 5 is the sectional drawing of centralizer under the strapdown type stable platform apparatus.
The specific embodiment:
Now, the present invention is further described in conjunction with Figure of description.
Figure 1 shows that the drilling process sectional drawing of the real-time NDS that strapdown type stable platform apparatus of the present invention is housed.As everyone knows, DHA comprises drill bit 1, is installed in the bottom of drill collar 2, drives rotation by the rotating disk on the raised platform around a well 43, and rotating disk is driven by rig 5, makes a trip and applies the pressure of the drill and finish by overhead traveling crane 6.By the executing agency in the strapdown type stable platform apparatus 7 control bias units 8, Controlling Borehole Trajectory is extended by hole deviation, the orientation of design automatically.
Fig. 2 is the schematic diagram of strapdown type stable platform apparatus.Strapdown type stable platform apparatus 7 connects firmly on drill collar 2, impeller 9 is installed in the upper end of strapdown type stable platform apparatus 7, relatively rotate with strapdown type stable platform apparatus 7, power supply pipe nipple 10 is installed between observing and controlling pipe nipple 11 and the impeller 9, for observing and controlling pipe nipple 11 and servo pipe nipple 12 provide electric energy, observing and controlling pipe nipple 11 is measured the revolution space orientation of strapdown type stable platform apparatus 7, servo pipe nipple 12 is installed in the lower end of observing and controlling pipe nipple 11, measure the revolution space orientation of servo pipe nipple output shaft 48 and apply moment, bias unit 8 bottoms link to each other with drill bit, top links to each other with strapdown type stable platform apparatus 7 by servo pipe nipple output shaft 48, under the control of strapdown type stable platform apparatus 7, servo pipe nipple 12 drives bias unit 8, utilize moushroom valve 13 and piston 14 to drive the rib backup borehole wall, generation has the side direction backup power of a certain size and direction, controls the hole deviation of well by design automatically, extend in the orientation.
Fig. 3 is the sectional drawing of strapdown type stable platform apparatus.Realize connecting firmly by spring pressure ring 15, holddown spring 16 and seat key ring 47 between strapdown type stable platform apparatus 7 and the drill collar 2.Can certainly be by opening bolt hole on the drill collar or in drill collar, utilizing other bind mode such as spiral marking connection to realize strapdown type stable platform apparatus 7 is connected firmly on the drill collar 2.Impeller 9 has essentially identical axis with strapdown type stable platform apparatus 7, and under the driving of drilling fluid, impeller 9 is around this axis rotation.The drilling fluid of overcurrent flows into bias unit 8 by the annular space between strapdown type stable platform apparatus 7 and the drill collar 2.Impeller 9 is at least one or more levels axial-flow type or radial-flow type structure, to reach the required rotating speed requirement of power supply pipe nipple 10.Impeller 9 imports are equipped with filter screen 17, bulky grain solid matter in the filtering drilling fluid.Impeller pressure cap 18 is equipped with in impeller 9 upper ends, and impeller 9 is fixed on the power supply pipe nipple driving shaft 24.Between impeller 9 and the drill collar 2 guide shell 19 is housed, fixedly filter screen 17 and last centralizer 21.A upper plug head 23 is set between last centralizer 21 and power supply pipe nipple 10, and rotatory sealing 22 in the placement, prevent the hydraulic fluid leak in the power supply pipe nipple 10.Upper plug head 23 and power supply pipe nipple 10 spiral marking connections.Power supply pipe nipple 10 comprises and is immersed in power supply pipe nipple permanent magnet 27 and power supply pipe nipple stator coil 25 in the hydraulic oil, power supply pipe nipple permanent magnet 27 is fixed on the power supply pipe nipple driving shaft 24, and power supply pipe nipple stator coil 25 is distributed on power supply pipe nipple resistance to compression tube 26 inner tube walls.Impeller 9 links to each other by power supply pipe nipple driving shaft 24 with power supply pipe nipple 10.High speed rotation by impeller 9 makes power supply pipe nipple 10 to provide required electric energy for observing and controlling pipe nipple 11 and servo pipe nipple 12.Observing and controlling pipe nipple 11 can certainly be embodied as and servo pipe nipple 12 provides electric energy by the power supply that adds holding storage battery or other form.Power supply pipe nipple driving shaft 24 enters the interface of power supply pipe nipple 10 and adopts upward rotatory sealing 22, compresses rotatory sealing 22 by last seal joint 20.Power supply pipe nipple resistance to compression tube 26 and top connection 30 are by being threaded.Pressurized spring 31 is gone up in top connection 30 interior employings and last floating piston 29 structures are kept sealing effectiveness.Have oil filler plug 32 in the top connection 30.In power supply pipe nipple 10 and observing and controlling pipe nipple 11, be provided with cable tray, have power connection at power supply pipe nipple 10 1 ends.Contain fluxgate, accelerometer, rate gyroscope and microprocessor in the observing and controlling pipe nipple 11.Be provided with data and power interface near observing and controlling pipe nipple 11 1 ends.Rotary transformer 39 is installed on the servo pipe nipple output shaft 48.Motor permanent magnet 41 is fixed on the servo pipe nipple output shaft 48, and stator coils of motor 42 is uniform to be fixed on the inner tube wall of servo pipe nipple resistance to compression tube 40.Rotary transformer 39, motor permanent magnet 41 and stator coils of motor 42 are immersed in the hydraulic oil.Servo pipe nipple 12 links to each other by servo pipe nipple output shaft 48 with bias unit 8, and servo pipe nipple output shaft 48 stretches out the interface of servo pipe nipple 12 and adopts rotatory sealing 44 down.By servo pipe nipple output shaft 48 is that bias unit 8 transmits required moment of torsion, certainly in order to change the output torque requirement, can realize by the form that installs gearbox or other change moment additional here.Compress down rotatory sealing 44 by lower seal pressure ring 46.Servo pipe nipple resistance to compression tube 40 and lower contact 36 are by being threaded.Pressurized spring 34 and following floating piston 35 structures are kept sealing effectiveness under adopting in the lower contact 36.Have down oil filler plug 37 in the lower contact 36.Placing a lower end cap 43 in the middle of centralizer 45 and the servo pipe nipple 12 down, rotatory sealing 44 down is being housed on lower end cap 43.Spiral marking connection between lower end cap 43 and the servo pipe nipple 12.
Fig. 4 and Fig. 5 are respectively on the strapdown type stable platform apparatus, the sectional drawing of following centralizer.Last centralizer 21 and following centralizer 45 play the concentric effect that aligns to strapdown type stable platform apparatus 7 respectively, the drilling fluid of overcurrent is respectively by last centralizer 21 simultaneously, through hole between following centralizer 45 and the drill collar 2 flows into the annular space between strapdown type stable platform 7 and the drill collar 2, enters drill bit 1 again.
The use operating process of this device is: in the drill bit drilling process, drilling fluid with a fixed displacement and pressure is the filter screen by device at first, filtered drilling fluid promotes the impeller rotation, drives the work of power supply pipe nipple, for observing and controlling pipe nipple and servo pipe nipple provide required electric energy.The drilling fluid that flows through impeller flows into bias unit and drill bit by the annular space between device and the drill collar, returns ground by the annular space between the drill collar and the borehole wall again and finishes circulation.The power supply pipe nipple plays the effect of generator, by wheel rotation, makes the armature coil interaction that is fixed on the permanent magnet on the power supply pipe nipple driving shaft and is installed in power supply pipe nipple inner tube wall to produce required electric energy.The observing and controlling pipe nipple is actually a measure-controlling unit, contains fluxgate, acceleration of gravity meter, rate gyroscope, microprocessor and relevant various circuit.It can detect and receive various sensor signals in real time and handle accordingly, and sends the control corresponding instruction.Servo pipe nipple mainly is a performance element, and it is made up of rotary transformer and motor.Wherein rotary transformer is used to detect the dimensional orientation of servo pipe nipple driving shaft, and bearing signal is passed to the observing and controlling pipe nipple.Motor then is the control instruction according to the observing and controlling pipe nipple, constantly adjusts the revolution space orientation of servo pipe nipple driving shaft.Be arranged in the fluxgate of observing and controlling pipe nipple, the acceleration of gravity meter, rate gyroscope and rotary transformer may detect the hole deviation under the dynamic condition, the state parameter of orientation and device, and send information to microprocessor, this microprocessor is judged by analysis, if there are deviation in duty and setting value, just export control instruction and give servo pipe nipple, control the motor in the servo pipe nipple, by continuously changing the dimensional orientation of servo pipe nipple driving shaft, bias unit to nearly drill bit is controlled, make down-hole equipment be subjected to the effect of a horizontal concentrated force near the drill bit place like this, this horizontal concentrated force makes drill bit produce certain bias force, thereby well is got back on the predetermined track.
Claims (11)
1, a kind of strapdown type stable platform apparatus, it comprises power supply pipe nipple (10), observing and controlling pipe nipple (11) and servo pipe nipple (12), it is characterized in that: described strapdown type stable platform apparatus (7) connects firmly on drill collar (2).
2, strapdown type stable platform apparatus as claimed in claim 1 is characterized in that: described connecting firmly by spring pressure ring (15), holddown spring (16) and seat key ring (47) or by being threaded or the bolt realization.
3, strapdown type stable platform apparatus as claimed in claim 1 is characterized in that: described power supply pipe nipple (10) is a TRT and/or one or more batteries.
4, strapdown type stable platform apparatus as claimed in claim 1 is characterized in that: the following of motor at servo pipe nipple (12) can be connected in series one or more gearboxes.
5, strapdown type stable platform apparatus as claimed in claim 3, it is characterized in that: impeller (9) is fixed on the power supply pipe nipple driving shaft (24) of power supply pipe nipple (10), inlet at impeller (9) is equipped with filter, between impeller (9) and the drill collar (2) guide shell (19) is housed.
6, as claim 1 or 5 described strapdown type stable platform apparatus, it is characterized in that: described servo pipe nipple (12) comprises rotary transformer (39) and motor, rotary transformer (39) is used to detect the dimensional orientation of servo pipe nipple output shaft (48), and institute's interception signal is passed to observing and controlling pipe nipple (11).
7, strapdown type stable platform apparatus as claimed in claim 6 is characterized in that: the rotor coil of described power supply pipe nipple (10) and servo pipe nipple (12) and stator coil and rotary transformer (39) all are immersed in the hydraulic oil.
8, strapdown type stable platform apparatus as claimed in claim 5 is characterized in that: described impeller (9) is one or more levels axial-flow type or radial-flow type structure.
9, strapdown type stable platform apparatus as claimed in claim 7 is characterized in that: it also comprises centralizer (21) and following centralizer (45).
10, strapdown type stable platform apparatus as claimed in claim 7, it is characterized in that: upper plug head (23) is installed in the upper end of power supply pipe nipple (10), lower end cap (43) is installed in the lower end of servo pipe nipple (12), on upper plug head (23) and lower end cap (43), upper and lower rotatory sealing (22,44) is set respectively.
11, as claim 9 or 10 described strapdown type stable platform apparatus, it is characterized in that: comprise power supply pipe nipple resistance to compression tube (26), observing and controlling pipe nipple resistance to compression tube (33) and servo pipe nipple resistance to compression tube (40) respectively at described power supply pipe nipple (10), observing and controlling pipe nipple (11) and servo pipe nipple (12), power supply pipe nipple resistance to compression tube (26), observing and controlling pipe nipple resistance to compression tube (33) and servo pipe nipple resistance to compression tube (40) are separately positioned on the outside of pipe nipple separately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100445097A CN100376763C (en) | 2005-08-26 | 2005-08-26 | Strapdown type stable platform apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100445097A CN100376763C (en) | 2005-08-26 | 2005-08-26 | Strapdown type stable platform apparatus |
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| Publication Number | Publication Date |
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| CN1730896A true CN1730896A (en) | 2006-02-08 |
| CN100376763C CN100376763C (en) | 2008-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100445097A Expired - Fee Related CN100376763C (en) | 2005-08-26 | 2005-08-26 | Strapdown type stable platform apparatus |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102268987A (en) * | 2011-08-10 | 2011-12-07 | 中煤邯郸特殊凿井有限公司 | Gyro centralizer for retest of freezing hole |
| CN103123035A (en) * | 2013-02-06 | 2013-05-29 | 中国人民解放军海军工程大学 | Ship two-degree-freedom self-adaptation and stabilization platform |
| CN105180889A (en) * | 2014-06-19 | 2015-12-23 | 航天科工惯性技术有限公司 | Dynamic rotation attitude measurement apparatus used for well drilling, and method thereof |
| CN110261094A (en) * | 2019-07-17 | 2019-09-20 | 中国地质大学（北京） | A kind of experimental rig of vertical drill system backup mechanism |
| CN111896026A (en) * | 2020-05-11 | 2020-11-06 | 中国科学院地质与地球物理研究所 | Self-calibration method and system of solid-state resonant gyroscope |
| CN115898272A (en) * | 2022-11-29 | 2023-04-04 | 北京探矿工程研究所 | Closed loop track control device for flexible power drilling tool |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9503828D0 (en) * | 1995-02-25 | 1995-04-19 | Camco Drilling Group Ltd | "Improvements in or relating to steerable rotary drilling systems" |
| US7188685B2 (en) * | 2001-12-19 | 2007-03-13 | Schlumberge Technology Corporation | Hybrid rotary steerable system |
| CN2818759Y (en) * | 2005-08-26 | 2006-09-20 | 中国石化集团胜利石油管理局钻井工艺研究院 | Stabilized linked platform apparatus |
-
2005
- 2005-08-26 CN CNB2005100445097A patent/CN100376763C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102268987A (en) * | 2011-08-10 | 2011-12-07 | 中煤邯郸特殊凿井有限公司 | Gyro centralizer for retest of freezing hole |
| CN103123035A (en) * | 2013-02-06 | 2013-05-29 | 中国人民解放军海军工程大学 | Ship two-degree-freedom self-adaptation and stabilization platform |
| CN103123035B (en) * | 2013-02-06 | 2015-03-11 | 中国人民解放军海军工程大学 | Ship two-degree-freedom self-adaptation and stabilization platform |
| CN105180889A (en) * | 2014-06-19 | 2015-12-23 | 航天科工惯性技术有限公司 | Dynamic rotation attitude measurement apparatus used for well drilling, and method thereof |
| CN105180889B (en) * | 2014-06-19 | 2017-11-17 | 航天科工惯性技术有限公司 | A kind of dynamic rotary attitude measuring and method for drilling well |
| CN110261094A (en) * | 2019-07-17 | 2019-09-20 | 中国地质大学（北京） | A kind of experimental rig of vertical drill system backup mechanism |
| CN110261094B (en) * | 2019-07-17 | 2023-12-19 | 中国地质大学（北京） | Test device of pushing mechanism of vertical drilling system |
| CN111896026A (en) * | 2020-05-11 | 2020-11-06 | 中国科学院地质与地球物理研究所 | Self-calibration method and system of solid-state resonant gyroscope |
| CN111896026B (en) * | 2020-05-11 | 2021-05-18 | 中国科学院地质与地球物理研究所 | Self-calibration method and system of solid-state resonant gyroscope |
| CN115898272A (en) * | 2022-11-29 | 2023-04-04 | 北京探矿工程研究所 | Closed loop track control device for flexible power drilling tool |
| CN115898272B (en) * | 2022-11-29 | 2023-09-22 | 北京探矿工程研究所 | Closed-loop track control device for flexible power drilling tool |
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