CN104196452A - Guiding method for rotating guiding well drilling system - Google Patents
Guiding method for rotating guiding well drilling system Download PDFInfo
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- CN104196452A CN104196452A CN201410429499.8A CN201410429499A CN104196452A CN 104196452 A CN104196452 A CN 104196452A CN 201410429499 A CN201410429499 A CN 201410429499A CN 104196452 A CN104196452 A CN 104196452A
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Abstract
The invention provides a guiding method for a rotating guiding well drilling system. The system adopted in the method comprises a drill collar, a drill bit drive shaft, a mud pipe, a mud pipe connector, a cardan joint, a mud sealing device, a drill bit and a directional control module connected with the inner wall of the drill collar. The drill bit drive shaft is mechanically coupled into the drill collar through the cardan joint and the directional control module, and the drill bit drive shaft can rotate around the cardan joint. The directional control module is of an electromagnetic guiding structure. The method comprises the step that directional control is carried out on the drill bit drive shaft through magnetic force in the electromagnetic guiding structure. The positioning control is carried out on the drill bit drive shaft through the magnetic force of the directional control module provided with the electromagnetic guiding structure, the system is simple in structure, and guiding control is easy.
Description
Technical field
The present invention relates to geological exploration field, in particular to a kind of guidance method of rotary steerable drilling system.
Background technology
At present, directional drilling system mainly contains two kinds: 1) pushing type system; 2) directional type system.Wherein, pushing type system is controlled drilling direction by promoting the borehole wall on opposite, specific drilling well orientation.Directional type system directly aims at by drill bit the drilling direction determining.Directional type system at least comprises a bit drive shaft in drill collar conventionally, and bit drive shaft is supported by the universal joint in drill collar, by drill collar, realizes rotary actuation.
Fig. 1 is the front view of being furnished with the rotary steerable drilling system 112 of traditional well logging during system 100.Tradition well logging during system 100 comprises rig 102, drill string 106, drill bit 110 and a rotary steerable drilling system 112.Drill string 106 is supported by rig 102, can down extend to boring 108 in 104 surfaces from ground.Drill string 106 can coordinate with drill bit 110 and rotary steerable drilling system 112, carries out directed drilling.
In directed drilling, during drill collar rotation, need to keep bit drive shaft relatively static and tilt towards drill collar direction, this directional type system can, in conjunction with directional controlling method, guarantee that drill bit can be setovered to predetermined direction when drilling tool rotate.But the Machine Design of this rotary steerable drilling system is comparatively complicated, guiding process is loaded down with trivial details.
Summary of the invention
The object of the present invention is to provide a kind of guidance method of rotary steerable drilling system, to solve the above problems.
A kind of guidance method of rotary steerable drilling system is provided in an embodiment of the present invention, this system comprises: drill collar, bit drive shaft, mud tube, mud tube connector, universal joint, mud sealing device and drill bit, and the directed control module being connected with the inwall of drill collar; Bit drive shaft is by universal joint and directed control module mechanical couplings to drill collar, and bit drive shaft can rotate around universal joint; Directed control module is electromagnetism guide frame; The method comprises: by the magnetic force in electromagnetism guide frame, bit drive shaft is carried out to orientation and control.
Above-mentioned directed control module comprises: pair of guide rails and locating rack; Wherein, the guide rail that the every pair of guide rail is " L " shape by two cross sections is oppositely arranged formation up and down, and a side of each guide rail is fixed on the inwall of drill collar; Locating rack is comprised of a transverse arm and a perpendicular arm, and its cross section is "T"-shaped; Wherein, described perpendicular arm is parallel with the inwall of drill collar, and described transverse arm is positioned at the middle part of the guide rail being oppositely arranged, and the two ends of described perpendicular arm are provided with the support wheel with guide rail coupling; The opposite face of the guide rail being oppositely arranged is up and down respectively arranged with the first phase magnet group, and the position of corresponding the first phase magnet group of transverse arm is provided with the second phase magnet group; The transverse arm of locating rack is provided with tube coupling away from described perpendicular arm one end, and tube coupling is connected with bit drive shaft; Based on this, above-mentionedly by the magnetic force in electromagnetism guide frame, bit drive shaft is carried out to directed control and comprise: according to positioning requirements, regulate the magnetic force between the first phase magnet group and the second phase magnet group big or small, in order to promote or to pull the transverse arm of described locating rack, control the inclination angle between bit drive shaft and drill collar.
Above-mentioned the first phase magnet group can be electromagnet group, and described in every group, electromagnet group at least comprises four blocks of electromagnet; Described the second phase magnet group can be permanent magnet group; Based on this, according to positioning requirements, regulate the magnetic force size between described the first phase magnet group and described the second phase magnet group to comprise: the size of current that regulates described electromagnet according to positioning requirements.
Above-mentioned the first phase magnet group can be permanent magnet group; Described the second phase magnet group can be electromagnet group; Based on this, according to positioning requirements, regulate the magnetic force size between the first phase magnet group and the second phase magnet group to comprise: the size of current that regulates described electromagnet according to positioning requirements.
The guidance method of the rotary steerable drilling system that the embodiment of the present invention provides, the magnetic force by the directed control module with electromagnetism guide frame positions control to bit drive shaft, and system architecture is simple, is easy to guiding and controls.
Accompanying drawing explanation
Fig. 1 is the front view of being furnished with the rotary steerable drilling system of traditional well logging during system;
Fig. 2 is the front view of the rotary steerable drilling system that provides of the embodiment of the present invention;
Fig. 3 is the concrete structure schematic diagram of the directed control module of rotary steerable drilling system in Fig. 2 of providing of the embodiment of the present invention;
Fig. 4 A is the sectional drawing of AA ' first group of electromagnet along the line in Fig. 3 of providing of the embodiment of the present invention;
Fig. 4 B is the sectional drawing of BB ' second group of electromagnet along the line in Fig. 3 of providing of the embodiment of the present invention;
Fig. 5 A be in Fig. 3 of providing of the embodiment of the present invention with the upward view of the locating rack of bit drive shaft coupling;
Fig. 5 B is the upward view of the embodiment of the present invention locating rack, bit drive shaft and another layout of permanent magnet that provide;
Fig. 6 is the schematic diagram of the magnetic interaction of the permanent magnet that provides of the embodiment of the present invention and electromagnet;
Fig. 7 is the schematic diagram of the rotary steerable drilling system working mechanism that provides of the embodiment of the present invention;
Fig. 8 is another deployment way schematic diagram of the directed control module shown in Fig. 2 of providing of the embodiment of the present invention;
Fig. 9 is the sectional drawing of AA ' permanent magnet along the line in Fig. 8 of providing of the embodiment of the present invention;
Electromagnet group on bit drive shaft and the upward view of locating rack are provided in Fig. 8 of providing of the embodiment of the present invention Figure 10 A;
Figure 10 B is another deployment way schematic diagram of the embodiment of the present invention locating rack, electromagnet group and the bit drive shaft that provide.
The specific embodiment
Below by specific embodiment, also by reference to the accompanying drawings the present invention is described in further detail.
The front view of the rotary steerable drilling system that the embodiment of the present invention as shown in Figure 2 provides, this rotary steerable drilling system 200 comprises: drill collar 202, bit drive shaft 212, mud tube 210, mud tube connector 208, universal joint 207, mud sealing device 204 and 214 and drill bit 216; And the directed control module 206 being connected with the inwall of drill collar 202; This bit drive shaft 212 is by universal joint 207 and directed control module 206 mechanical couplings to drill collar 202, and bit drive shaft 212 can be around universal joint 207 rotations; Directed control module 206 is electromagnetism guide frame.Guidance method based on this system comprises: by the magnetic force in electromagnetism guide frame, bit drive shaft 212 is carried out to orientation and control.
Use universal joint 207 and directed control module 206, bit drive shaft 212 can be mechanical coupling in drill collar 202.Bit drive shaft 212 can rotate around universal joint 207, thereby universal joint 207 is just equivalent to a central point.The weight of whole drill string and drill collar 202 is all applied on drill bit 216 by universal joint 207.The torque of drill collar 202 also can be sent on drill bit 216 by universal joint 207.The position of bit drive shaft 212 and deflection can be controlled by directed control module 206.
The guidance method of the rotary steerable drilling system that the embodiment of the present invention provides, the magnetic force by the directed control module with electromagnetism guide frame positions control to bit drive shaft, and system architecture is simple, is easy to guiding and controls.
Referring to Fig. 3, directed control module 206 comprises: pair of guide rails 302 and locating rack 314 (also there is locating rack 314 in Fig. 3 left side, for clear, and not signal); Wherein, the every pair of guide rail 302 is by two cross sections 304 for the guide rail 302 of " L " shape is oppositely arranged formation up and down, and a side of each guide rail 302 is fixed on the inwall of drill collar 202;
Locating rack 314 is comprised of a transverse arm and a perpendicular arm, and its cross section is "T"-shaped; Wherein, perpendicular arm is parallel with the inwall 316 of drill collar 202, and transverse arm is positioned at the middle part of the guide rail 302 being oppositely arranged, and the two ends of perpendicular arm are provided with the support wheel 308 with guide rail 302 couplings;
The opposite face of the guide rail 302 being oppositely arranged is up and down respectively arranged with the first phase magnet group, first group of electromagnet 310 and the second group of electromagnet 318 in Fig. 3 for example, the position of corresponding the first phase magnet group of transverse arm is provided with the second phase magnet group, for example the permanent magnet group 312 in Fig. 3;
The concrete structure of the directed control module 206 based on shown in Fig. 3, above-mentioned step of bit drive shaft 212 being carried out to directed control by the magnetic force in electromagnetism guide frame can comprise: according to positioning requirements, regulate the magnetic force size between the first phase magnet group and the second phase magnet group, in order to promote or to pull the transverse arm of described locating rack, control the inclination angle between bit drive shaft and drill collar.
Further, according to positioning requirements, regulate the step of the magnetic force size between the first phase magnet group and the second phase magnet group to comprise: according to the size of current of positioning requirements regulating magnet, and then to regulate the magnetic force size between the first phase magnet group and the second phase magnet group.
The transverse arm of locating rack 314 is provided with tube coupling 306 away from perpendicular arm one end, and tube coupling 306 is connected with bit drive shaft 212.In some scheme, guide rail 302 can be manufactured with high permeability metal, to strengthen magnetic flux.
In some scheme, first group of electromagnet 310 and second group of electromagnet 318 can replace with coil.
Locating rack 314 can be controlled the orientation of bit drive shaft 212 and drill bit 216 by following method: 1) draw/push away bit drive shaft 212 to make its tendency with a side of the drill collar 202 of universal joint 207; 2) transverse arm of push/pull locating rack 314, to determine the inclination angle between bit drive shaft 212 and drill collar 202; 3) perpendicular arm is along guide rail 302 rotations.Locating rack 314 can drive by the interaction between first group of electromagnet 310 and second group of electromagnet 318 and permanent magnet group 312.
As shown in Figure 3, the first phase magnet group is electromagnet group, and every group of electromagnet group can at least comprise four blocks of electromagnet; The second phase magnet group is permanent magnet group.Permanent magnet group and electromagnet group radially aligned.
Above-mentioned permanent magnet group is fixed by the permanent magnet bracket being arranged on transverse arm, and permanent magnet bracket is nonmagnetic material.
Fig. 4 A is the sectional drawing of AA ' first group of electromagnet 310 along the line in Fig. 3.First group of electromagnet 310 can comprise electromagnet 402,406,410,414,418,422,426,430,434,438,442,446,450,454,458,462,466 and 470.Preferably in first group of electromagnet 310, at least comprise four blocks of electromagnet.
Fig. 4 B is the sectional drawing of BB ' second group of electromagnet 318 along the line in Fig. 3.Second group of electromagnet 318 can comprise electromagnet 404,408,412,416,420,424,428,432,436,440,444,448,452,456,460,464,468 and 472.Preferably in second group of electromagnet 318, at least comprise four blocks of electromagnet.
In some scheme, the electromagnet quantity of first group of electromagnet 310 and second group of electromagnet 318 can be identical, can be from radially calibrating with azimuth direction.
During specific implementation, the quantity of above-mentioned electromagnet and permanent magnet and type are unfixing.
Fig. 5 A be in Fig. 3 with the upward view of the locating rack 314 of bit drive shaft 212 coupling.One end of locating rack 314 can be connected on bit drive shaft 212 by tube coupling 306, and the other end can be coupled on guide rail 302 (not showing in Fig. 5 A) by support wheel 308.Use a set of bearing 504 tube coupling 306 can be connected on bit drive shaft 212.Locating rack 314 and tube coupling 306 can form a firmly entity, and along guide rail 302 rotations.
In some scheme, the permanent magnet group 312 in Fig. 3 can fix with permanent magnet bracket 502.It forms with nonmagnetic metal manufacture, can be arranged on locating rack 314.Had permanent magnet bracket 502, locating rack 314 just can hold more permanent magnet, such as, the permanent magnet 506,508 and 510 in Fig. 5 A.
In some scheme, permanent magnet group 312 is first group of electromagnet 310 and second group of electromagnet 318 radially aligned together, thereby produce larger magnetic force.
In service, permanent magnet group 312 is enough to allow locating rack 314 along guide rail 302 rotations with the magnetic force producing between first group of electromagnet 310 and second group of electromagnet 318.During drilling well, the direction of rotation of locating rack 314 is contrary with the direction of rotation of drill collar 202 and drill bit 216, but speed is between the two identical.
According to schemes more of the present invention, Fig. 5 B is the bottom view of locating rack, bit drive shaft and another layout of permanent magnet.A plurality of locating racks 513, support wheel 518, permanent magnet bracket 511 and permanent magnet 516,514 and 512 can be coupled on bit drive shaft 212, with this, increase driving force.
In some scheme, permanent magnet 512,514 and 516 shape and size can with permanent magnet 506,508 with 510 identical.
According to schemes more of the present invention, Fig. 6 is the schematic diagram of the magnetic interaction of permanent magnet and electromagnet.For ease of explaining, six blocks of electromagnet 418,420,422,424,426 and 428 and two block permanent magnets 508 and 510 in Fig. 6, have only been shown.Permanent magnet 508 and 510 can be respectively upward direction 620 and being magnetized in direction 622 down.According to electromagnetism rule, homopolar-repulsion, heteropole is inhaled mutually.For permanent magnet 508 and 510 being moved to the left side in orientation 614, can activate electromagnet 426 and 428, thereby produce magnetic flux 616 and 618 upwards respectively.Next, electromagnet 426 and 428 will produce corresponding pulling force 602 and pulling force 604 to permanent magnet 510, thereby pulls permanent magnet 510 toward moving left.In like manner, electromagnet 418 and 420 can be activated, thereby downward magnetic flux 624 and 626 will be produced respectively.Then, electromagnet 418 and 420 will produce corresponding thrust 606 and thrust 608, thereby promotes permanent magnet 510 toward moving left, and produces corresponding pulling force 610 and pulling force 612, pulls permanent magnet 508 to be moved to the left.At this one-phase, electromagnet 422 and 424, in idle state, is positioned at the centre of permanent magnet 510, can not apply pulling force or push away to permanent magnet 510.
When control polarity of voltage on being applied to electromagnet 418,420,426 and 428 is contrary, permanent magnet 508 and 510 just can be toward moving right.
In some scheme, Hall element (as shown in Figure 6) can be connected to electromagnetism guidance system (being equivalent to above-mentioned directed control module 206) upper, so that the relative position between Accurate Measurement permanent magnet and electromagnet.Like this, when rotary steerable drilling system moves, just can accurately calculate magnitude of voltage, and then apply on electromagnet.
According to schemes more of the present invention, the schematic diagram of Tu7Shi rotary steerable drilling system working mechanism.As previously mentioned, locating rack 314 can be controlled by following several modes the orientation of bit drive shaft 212 and drill bit 216: 1) draw/push away bit drive shaft 212 to make its tendency with drill collar 202 1 sides 708 of universal joint 207; 2) push/pull transverse arm, to determine the inclination angle between bit drive shaft 212 and drill collar 202; 3) control locating rack 314 along guide rail 302 rotations.Locating rack 314 can drive by the interaction producing between first group of electromagnet 310 and second group of electromagnet 318 and permanent magnet group 312.For example, when locating rack 314 is positioned at the orientation of negative y axle, drill bit 216 will move towards the direction of positive y-axle.Say for another example, when drilling direction is during towards positive x-axle, locating rack 314 will remain on the direction of negative x-axle.
During drilling well, if drill collar 202 and drill bit 216 constantly rotate along direction 702, and locating rack 314 is positioned at the permanent position with drill collar 202, and drill bit 216 will swing on z-axle so, and the hole coming outbreak out is also relatively large.Will drilling well in predetermined direction, just need to synchronously locate drill bit 216.Such as when drill collar 202 and drill bit 216 are during along direction 702 rotation, drill bit 216 can constantly point to the direction of positive y-axle.In order to allow bit drive shaft 212 and drill bit 216 and stratum keep stable, locating rack 314 will rotate along direction 704,706, and this position is by chance positioned at the opposite of bit direction 702, and drill collar 202 is identical with the speed of drill bit 216.This electromagnetism guidance system that comprises permanent magnet and electromagnet can be controlled the position of locating rack 314 and turn to, and the position of drilling of final keyhole.
According to schemes more of the present invention, above-mentioned the first phase magnet group can also be permanent magnet group; The second phase magnet group is electromagnet group.Fig. 8 is another deployment way schematic diagram of the directed control module 206 shown in Fig. 2, and its difference is the position transposing of permanent magnet and electromagnet.For example: permanent magnet group 802 and 804 is arranged on guide rail 302, electromagnet group 806 is installed on locating rack 314.
According to schemes more of the present invention, Fig. 9 is the sectional drawing of AA ' permanent magnet along the line in Fig. 8.Permanent magnet group 802 can comprise permanent magnet 902,904,906 and 908.Preferably permanent magnet group 802 has two permanent magnets at least.
In some scheme, permanent magnet polarity can change with guide rail 302.Such as, when arctic of permanent magnet 902 and 906 upward, permanent magnet 904 and arctic of 908 will, drive electromagnetism operation with this down so.
In some scheme, the deployment of permanent magnet group 804 can be just the same with the deployment of permanent magnet group 802.
According to schemes more of the present invention, Figure 10 A is coupled to electromagnet group 806 on bit drive shaft 212 and the upward view of locating rack 314 in Fig. 8.Electromagnet group 806 in Fig. 8 can support with an electromagnetism support 1000.It forms with nonmagnetic metal manufacture, can be arranged on locating rack 314.Had electromagnetism support 1000, locating rack 314 just can hold more electromagnet simultaneously, such as the electromagnet 1002,1004,1006,1008,1010 and 1012 in Figure 10 A.
According to schemes more of the present invention, Figure 10 B is another deployment way schematic diagram of locating rack, electromagnet group and bit drive shaft.A plurality of locating racks 513, support wheel 518, electromagnetism support 1014 and electromagnet 1016,1018,1020,1022,1024 and 1026 also can be coupled on bit drive shaft 212, thereby increase driving force.
In some scheme, in above-mentioned directed control module 206, linkage can also be set, such as slip ring (not shown), so as by the power transfer of locating rack 314 on electromagnet group 806.
In some scheme, a plurality of electromagnet 1016,1018,1020,1022,1024 can be identical with 1012 shape and size with electromagnet 1002,1004,1006,1008,1010 with 1026 shape and size.
Above-mentioned bit drive shaft 212 be provided with in the radial direction a plurality of directed control modules 206.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (4)
1. a guidance method for rotary steerable drilling system, this system comprises: drill collar (202), bit drive shaft (212), mud tube (210), mud tube connector (208), universal joint (207), mud sealing device (204) and drill bit (216); It is characterized in that, this system also comprises: the directed control module (206) being connected with the inwall of drill collar (202); Bit drive shaft (212) is by universal joint (207) and directed control module (206) mechanical couplings to drill collar (202), and bit drive shaft (212) can rotate around universal joint (207); Directed control module (206) is electromagnetism guide frame;
Described method comprises: by the magnetic force in described electromagnetism guide frame, bit drive shaft (212) is carried out to orientation and control.
2. method according to claim 1, is characterized in that, directed control module (206) comprising: pair of guide rails (302) and locating rack (314);
Wherein, the guide rail (302) that every pair of guide rail (302) is " L " shape by two cross sections is oppositely arranged formation up and down, and a side of each guide rail (302) is fixed on the inwall of drill collar (202);
Locating rack (314) is comprised of a transverse arm and a perpendicular arm, and its cross section is "T"-shaped; Wherein, described perpendicular arm is parallel with the inwall of drill collar (202), and described transverse arm is positioned at the middle part of the guide rail (302) being oppositely arranged, and the two ends of described perpendicular arm are provided with the support wheel with guide rail (302) coupling;
The opposite face of the guide rail being oppositely arranged up and down (302) is respectively arranged with the first phase magnet group, and the position of corresponding described the first phase magnet group of described transverse arm is provided with the second phase magnet group;
The transverse arm of locating rack (314) is provided with tube coupling (306) away from described perpendicular arm one end, and tube coupling (306) is connected with bit drive shaft (212);
Describedly by the magnetic force in described electromagnetism guide frame, bit drive shaft (212) is carried out to directed control and comprise: according to positioning requirements, regulate the magnetic force between described the first phase magnet group and described the second phase magnet group big or small, in order to promote or to pull the transverse arm of described locating rack, control the inclination angle between bit drive shaft and drill collar.
3. method according to claim 2, is characterized in that, described the first phase magnet group is electromagnet group, and described in every group, electromagnet group at least comprises four blocks of electromagnet; Described the second phase magnet group is permanent magnet group;
Describedly according to positioning requirements, regulate the magnetic force size between described the first phase magnet group and described the second phase magnet group to comprise: the size of current that regulates described electromagnet according to positioning requirements.
4. method according to claim 2, is characterized in that, described the first phase magnet group is permanent magnet group; Described the second phase magnet group is electromagnet group;
Describedly according to positioning requirements, regulate the magnetic force size between described the first phase magnet group and described the second phase magnet group to comprise: the size of current that regulates described electromagnet according to positioning requirements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410429499.8A CN104196452B (en) | 2014-08-27 | The guidance method of rotary steerable drilling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410429499.8A CN104196452B (en) | 2014-08-27 | The guidance method of rotary steerable drilling system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104196452A true CN104196452A (en) | 2014-12-10 |
| CN104196452B CN104196452B (en) | 2017-01-04 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108301770A (en) * | 2017-01-12 | 2018-07-20 | 通用电气公司 | Automatically adjust oriented drilling device and method |
| CN111827883A (en) * | 2020-05-29 | 2020-10-27 | 中国石油天然气集团有限公司 | Rotary guide tool |
| CN115478785A (en) * | 2022-09-09 | 2022-12-16 | 乐山师范学院 | Drilling device with automatic adjusting function and drilling method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108301770A (en) * | 2017-01-12 | 2018-07-20 | 通用电气公司 | Automatically adjust oriented drilling device and method |
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| RU2713256C1 (en) * | 2017-01-12 | 2020-02-04 | Дженерал Электрик Компани | Device and method for automatic control of directional drilling |
| CN111827883A (en) * | 2020-05-29 | 2020-10-27 | 中国石油天然气集团有限公司 | Rotary guide tool |
| CN111827883B (en) * | 2020-05-29 | 2022-02-25 | 中国石油天然气集团有限公司 | Rotary guide tool |
| CN115478785A (en) * | 2022-09-09 | 2022-12-16 | 乐山师范学院 | Drilling device with automatic adjusting function and drilling method |
| CN115478785B (en) * | 2022-09-09 | 2023-04-11 | 乐山师范学院 | Drilling device with automatic adjusting function and drilling method |
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Effective date of registration: 20210114 Address after: 100120 No.6 liupukang, Xicheng District, Beijing Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: China National Petroleum Corporation Great Wall Drilling Engineering Co.,Ltd. Address before: 100101 No.101, Anli Road, Chaoyang District, Beijing Patentee before: China National Petroleum Corporation Great Wall Drilling Engineering Co.,Ltd. |