CN110185393A - The drilling tool of rotary steering function is realized using change gear train - Google Patents
The drilling tool of rotary steering function is realized using change gear train Download PDFInfo
- Publication number
- CN110185393A CN110185393A CN201910450388.8A CN201910450388A CN110185393A CN 110185393 A CN110185393 A CN 110185393A CN 201910450388 A CN201910450388 A CN 201910450388A CN 110185393 A CN110185393 A CN 110185393A
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- gear
- assembly
- shell
- deflection
- rotary steering
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- 238000005553 drilling Methods 0.000 title claims abstract description 29
- 230000005540 biological transmission Effects 0.000 claims abstract description 41
- 238000007789 sealing Methods 0.000 claims description 27
- 238000012546 transfer Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 3
- 210000003464 cuspid Anatomy 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 238000011161 development Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/06—Deflecting the direction of boreholes
- E21B7/061—Deflecting the direction of boreholes the tool shaft advancing relative to a guide, e.g. a curved tube or a whipstock
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Retarders (AREA)
Abstract
Realize that the drilling tool of rotary steering function is made of top assembly, governor gear assembly, transmission gear assembly, deflection mechanism and lower part assembly using change gear train the invention discloses a kind of, top assembly front end is followed successively by governor gear assembly, transmission gear assembly, deflection mechanism, lower part assembly.Of the invention realizes that the drilling tool of rotary steering function passes through governor gear assembly for the input speed for being converted into deflection mechanism of drill string using change gear train, utilize transmission gear assembly, control the rotation of inside and outside eccentric hoop, realize the control of different eccentricities, to make lower part assembly generate the deflection of different angle, rotary steering function is realized.Of the invention realizes that the drilling tool of rotary steering function utilizes the deflection for rotating realization deflection mechanism of drill string itself using change gear train, the guide digging of different angle is realized by pure mechanic structure, tool interior structure composition is mostly all kinds of standard components, has saved processing cost.
Description
Technical field
The present invention relates to a kind of drilling wells that rotary steering function is realized using change gear train for oil gas well drilling engineering
Tool is especially adapted for use in the horizontal well drilling engineering of shale gas exploration and development.
Background technique
With conventional gas and oil resource continuous exploration and development, traditional petroleum resources gradually decrease, and Novel oil gas resource is surveyed
The important component that exploitation is increasingly becoming energy strategy demand is visited, especially coal bed gas, shale gas exploitation is increasingly becoming oil gas
The main trend of development of resources.During shale gas exploitation, due to special occurrence condition, casing programme is usually big displacement
Horizontal well, horizontal section length is longer, and in horizontal segment drilling process, drill string can not provide bit pressure for drill bit, and drill string is in horizontal segment
The drilling well frictional resistance being subject to is larger, causes to be difficult to control drill bit drilling direction in drilling process, is easy to cause well track to occur inclined
It moves, experience is made to deviate target reservoir.
In order to adjusting controlling party parallactic angle and hole angle in time, rotary steerable tool is usually added in drill assembly,
The drilling direction of adjustment control in real time, corrects well track offset direction, guarantees that drill bit can be crept into towards destination layer position.According to survey
The collected downhole data of well instrument adjusts steering tool movement by control system, realizes guide digging, guarantees that drill bit can
It is bored according to the well track of design and reaches reservoir.It, being capable of effective controlled level well horizontal section wellbore by using rotary steerable tool
The orientation and hole deviation of track guarantee that drill bit is accurately and rapidly crept into.Therefore, during shale gas exploration and development, rotary steering
Drilling tool is the important component of downhole drill technical equipment, using rotary steerable tool, can complete horizontal segment quickly,
Accurate drilling, realizes the Efficient Development of shale gas resource.
Summary of the invention
In order to explore solve thick horizontal well drilling described in background technology during well track be easy offset, hole deviation and
Orientation problem not easy to control, the present invention provides a kind of drilling tools that rotary steering function is realized using change gear train.This
Invention realizes that the drilling tool of rotary steering function is converted the rotation of drill string by governor gear assembly using change gear train
For the input speed of deflection mechanism, transmission gear assembly is recycled, the rotation of inside and outside eccentric hoop is controlled, realizes different eccentricities
Control, thus make lower part assembly generate different angle deflection, since more gearratio controls may be implemented in transmission gear assembly,
Therefore but make tool that there is guide digging or not guide function, it can be achieved that use demand under different working condition.
The technical solution of the present invention is as follows: described realize the drilling tool of rotary steering function by top using change gear train
Assembly, governor gear assembly, transmission gear assembly, deflection mechanism, lower part assembly composition, top assembly front end is followed successively by timing gear
Wheel assembly, transmission gear assembly, deflection mechanism, lower part assembly when installation, first install top assembly and lower part assembly, then successively
Deflection mechanism, transmission gear assembly and governor gear assembly are installed；The top assembly includes top connection, sealing ring a, rectangle
Rectangular seal a and rectangular seal b are installed to sealing by sealing ring a, rectangular seal b, ball bearing a and rotational shell
Then sealing ring a, rectangular seal a and rectangular seal b are co-mounted to top connection front end, then install ball bearing by ring a
Then a installs rotational shell；The governor gear assembly include mandrel, tapered roller bearing a, positioning sleeve, ball bearing b,
Sun gear, planetary wheel carrier, planetary gear a, intermediate gear, locking nut, planetary gear b, wheel shaft, ball bearing c, shell and driving section
Transmission parts are installed on mandrel by part first, and install ball bearing c in transmission parts front end, are pacified in transmission parts rear end
Planetary gear b and wheel shaft are filled, ball bearing c is installed to intermediate gear front end, then intermediate gear is installed on mandrel, will be gone
Star-wheel a is installed on planetary wheel carrier, is locked by locking nut, is then cooperated with sun gear, intermediate gear, then by the sun
Wheel is installed on mandrel, and positioning sleeve and tapered roller bearing a are installed on mandrel, and it is outer that ball bearing b is finally installed to rotation
Shell installs shell behind front end；The transmission gear assembly includes bearing retainer, spline shell, upper pressurizer, torque transmitting
Component, upper speed change gear wheel, pinion shaft, pinion gear, lower speed change gear wheel, lower pressurizer, sealing ring b, locating piece first will
Bearing retainer is installed to transmission parts front end, then installs tapered roller bearing a, and spline shell and bearing retainer are cooperated
Together, successively by upper pressurizer, torque transfer member, upper speed change gear wheel, pinion shaft, pinion gear, lower speed change gear wheel,
Lower pressurizer is installed on interior eccentric annulate shaft, then installs locating piece, and sealing ring b is finally installed to case nose；Described is inclined
Rotation mechanism include interior eccentric annulate shaft, outer eccentric annulate shaft, lock-on connection, sealing ring c, rectangular seal c, rectangular seal d, it is outer partially
Thimble, interior eccentric hoop, bearing group after bearing group is installed on mandrel, install interior eccentric annulate shaft, then install interior eccentric hoop, interior
It is connected between eccentric hoop and interior eccentric annulate shaft using spline, before outer eccentric hoop is connected in outer eccentric annulate shaft by welding manner
Rectangular seal c and rectangular seal d are installed to sealing ring c corresponding position by end, and composition seal combination is co-mounted to outer inclined
On thimble axis, then installation locking connector, after when lower part, assembly is installed, by lock-on connection and deflection shell locking；Described
Lower part assembly includes deflection shell, ring type seal, fixed frame, ball, ball retainer and lower contact, first by ring packing
Circle and fixed frame are installed to deflection case nose, before being co-mounted to mandrel after then assembling ball and ball retainer
End, finally installs lower contact.
The upper pressurizer and lower pressurizer can produce axial force, act on speed change gear wheel and lower speed change canine tooth
On wheel, change the transmission ratio of transmission gear assembly, to adjust the rotational speed difference of outer eccentric hoop and interior eccentric hoop, realizes different bias
Away from adjusting, so that lower part assembly is generated controllable deflection, realize the rotary steering function of drilling tool.
It is adopted between the transmission parts, bearing retainer, spline shell, torque transfer member and upper speed change gear wheel
It is connected with spline structure, to transmit the revolving speed of governor gear assembly output；The spline shell is symmetrical 2, rolling
Pearl quantity is 6.
The beneficial effects of the present invention are: (1) adjusts input speed by gear mechanism, realized using the rotation of drill string itself
The deflection of deflection mechanism, is not needed to be additionally provided power or be driven using drilling fluid, realizes guiding function by pure mechanic structure
Energy；(2) rotation that inside and outside eccentric hoop is adjusted using transmission gear assembly controls speed change to adjust the eccentricity of deflection mechanism
The transmission ratio of gear assembly, i.e., controllable lower part assembly realize the deflection of different angle；(3) realize that rotation is led using mechanical structure
To function, hydraulic system is not present, inner body is mostly standard component, can directly select use, save processing cost.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is the Section A-A figure in Fig. 1 of the present invention.
Fig. 3 is the section B-B figure in Fig. 1 of the present invention.
Fig. 4 is the structural schematic diagram of sealing ring a.
Fig. 5 is the structural schematic diagram of sealing ring c.
1. top connection in figure, 2. sealing ring a, 3. rectangular seal a, 4. rectangular seal b, 5. ball bearing a, 6. rotate
Shell, 7. mandrels, 8. tapered roller bearing a, 9. positioning sleeves, 10. ball bearing b, 11. sun gears, 12. planetary wheel carriers, 13. rows
Star-wheel a, 14. intermediate gears, 15. locking nuts, 16. planetary gear b, 17. wheel shafts, 18. ball bearing c, 19. shells, 20. transmissions
Component, 21. bearing retainers, 22. spline shells, pressurizer on 23., 24. torque transfer members, speed change gear wheel on 25.,
26. pinion shaft, 27. pinion gears, 28. lower speed change gear wheels, 29. lower pressurizers, 30. sealing ring b, 31. locating pieces, in 32.
Eccentric annulate shaft, 33. outer eccentric annulate shafts, 34. lock-on connections, 35. sealing ring c, 36. rectangular seal c, 37. rectangular seal d,
38. outer eccentric hoop, eccentric hoop in 39., 40. bearing groups, 41. deflection shells, 42. ring type seals, 43. fixed frames, 44. rollings
Pearl, 45. ball retainers, 46. lower contacts.
Specific embodiment
Carry out detailed description of the present invention illustrative embodiments with reference to the drawings.It should be appreciated that shown in attached drawing and
The embodiment of description is only exemplary, it is intended that is illustrated the principle and spirit of the invention, and is not limited model of the invention
It encloses.
Those of ordinary skill in the art will understand that the embodiments described herein, which is to help reader, understands this hair
Bright principle, it should be understood that protection scope of the present invention is not limited to such specific embodiments and embodiments.This field
Those of ordinary skill disclosed the technical disclosures can make according to the present invention and various not depart from the other each of essence of the invention
The specific variations and combinations of kind, these variations and combinations are still within the scope of the present invention.
It is described to realize the drilling tool of rotary steering function by top assembly, speed regulation using change gear train referring to attached drawing
Gear assembly, transmission gear assembly, deflection mechanism, lower part assembly composition, top assembly front end are followed successively by governor gear assembly, become
Fast gear assembly, deflection mechanism, lower part assembly when installation, first install top assembly and lower part assembly, then successively install deflection machine
Structure, transmission gear assembly and governor gear assembly；The top assembly includes top connection 1, sealing ring a2, rectangular seal
Rectangular seal a3 and rectangular seal b4 are installed to sealing by a3, rectangular seal b4, ball bearing a5 and rotational shell 6
Then sealing ring a2, rectangular seal a3 and rectangular seal b4 are co-mounted to 1 front end of top connection, then install rolling by ring a2
Then pearl bearing a5 installs rotational shell 6；The governor gear assembly includes mandrel 7, tapered roller bearing a8, positioning sleeve
9, ball bearing b10, sun gear 11, planetary wheel carrier 12, planetary gear a13, intermediate gear 14, locking nut 15, planetary gear b16,
Transmission parts 20, are installed on mandrel 7 by wheel shaft 17, ball bearing c18, shell 19 and transmission parts 20 first, and are being driven
Ball bearing c18 is installed in 20 front end of component, planetary gear b16 and wheel shaft 17 is installed in 20 rear end of transmission parts, by ball bearing c18
It is installed to 14 front end of intermediate gear, then intermediate gear 14 is installed on mandrel 7, planetary gear a13 is installed to planetary wheel carrier
It on 12, is locked, is then cooperated with sun gear 11, intermediate gear 14, then sun gear 11 is installed to by locking nut 15
On mandrel 7, positioning sleeve 9 and tapered roller bearing a8 are installed on mandrel 7, ball bearing b10 is finally installed to rotational shell 6
Shell 19 is installed behind front end；The transmission gear assembly includes bearing retainer 21, spline shell 22, upper pressurizer 23, turns round
It is square transferring element 24, upper speed change gear wheel 25, pinion shaft 26, pinion gear 27, lower speed change gear wheel 28, lower pressurizer 29, close
Bearing retainer 21 is installed to 20 front end of transmission parts first, then installs tapered roller bearing by seal ring b30, locating piece 31
Spline shell 22 and bearing retainer 21 are combined together by a8, successively by upper pressurizer 23, torque transfer member 24, upper change
Fast gear wheel 25, pinion shaft 26, pinion gear 27, lower speed change gear wheel 28, lower pressurizer 29 are installed on interior eccentric annulate shaft 32,
Locating piece 31 is installed again, sealing ring b30 is finally installed to 19 front end of shell；The deflection mechanism includes interior eccentric annulate shaft
32, outer eccentric annulate shaft 33, lock-on connection 34, sealing ring c35, rectangular seal c36, rectangular seal d37, outer eccentric hoop 38,
Interior eccentric hoop 39, bearing group 40 after bearing group 40 is installed on mandrel 7, install interior eccentric annulate shaft 32, then install interior eccentric hoop
39, it is connected between interior eccentric hoop 39 and interior eccentric annulate shaft 32 using spline, outer eccentric hoop 38 is connected in outside by welding manner
Rectangular seal c36 and rectangular seal d37 are installed to sealing ring c35 corresponding position, composition sealing by eccentric 33 front end of annulate shaft
Combination is co-mounted on outer eccentric annulate shaft 33, then installation locking connector 34, after when lower part, assembly is installed, by lock-on connection
34 lock with deflection shell 41；The lower part assembly include deflection shell 41, ring type seal 42, fixed frame 43, ball 44,
Ring type seal 42 and fixed frame 43 are installed to deflection 41 front end of shell first, then by ball retainer 45 and lower contact 46
It is co-mounted to 7 front end of mandrel after ball 44 and ball retainer 45 are assembled, lower contact 46 is finally installed.
The upper pressurizer 23 and lower pressurizer 29 can produce axial force, act on speed change gear wheel 25 and lower change
On fast gear wheel 28, change the transmission ratio of transmission gear assembly, so that the rotational speed difference of outer eccentric hoop 38 and interior eccentric hoop 39 is adjusted,
The adjusting for realizing different eccentricities makes lower part assembly generate controllable deflection, realizes the rotary steering function of drilling tool.
Transmission parts 20, bearing retainer 21, spline shell 22, torque transfer member 24 and the upper speed change gear wheel
Spline structure connection is all made of between 25, to transmit the revolving speed of governor gear assembly output；The spline shell 22 is symmetrical
2 of distribution, 44 quantity of ball are 6.
Claims (4)
1. realizing the drilling tool of rotary steering function using change gear train, it is characterised in that: the utilization change gear train is real
The drilling tool of existing rotary steering function is total by top assembly, governor gear assembly, transmission gear assembly, deflection mechanism, lower part
Governor gear assembly, transmission gear assembly, deflection mechanism, lower part assembly are followed successively by, top assembly front end in groups, when installation,
Top assembly and lower part assembly are first installed, then deflection mechanism, transmission gear assembly and governor gear assembly are successively installed；Described
Top assembly include top connection (1), sealing ring a (2), rectangular seal a (3), rectangular seal b (4), ball bearing a (5) and
Rectangular seal a (3) and rectangular seal b (4) are installed to sealing ring a (2), then by sealing ring a by rotational shell (6)
(2), rectangular seal a (3) and rectangular seal b (4) is co-mounted to top connection (1) front end, then installs ball bearing a (5),
Then rotational shell (6) are installed；The governor gear assembly include mandrel (7), tapered roller bearing a (8), positioning sleeve (9),
Ball bearing b (10), sun gear (11), planetary wheel carrier (12), planetary gear a (13), intermediate gear (14), locking nut (15),
Planetary gear b (16), wheel shaft (17), ball bearing c (18), shell (19) and transmission parts (20), first by transmission parts (20)
It is installed on mandrel (7), and ball bearing c (18) is installed in transmission parts (20) front end, installed in transmission parts (20) rear end
Ball bearing c (18) is installed to intermediate gear (14) front end, then by intermediate gear by planetary gear b (16) and wheel shaft (17)
(14) it is installed on mandrel (7), planetary gear a (13) is installed on planetary wheel carrier (12), locked by locking nut (15)
Tightly, then cooperate with sun gear (11), intermediate gear (14), then sun gear (11) is installed on mandrel (7), in mandrel (7)
Upper installation positioning sleeve (9) and tapered roller bearing a (8), after ball bearing b (10) is finally installed to rotational shell (6) front end
It installs shell (19)；The transmission gear assembly include bearing retainer (21), spline shell (22), upper pressurizer (23),
Torque transfer member (24), upper speed change gear wheel (25), pinion shaft (26), pinion gear (27), lower speed change gear wheel (28), under
Bearing retainer (21) is installed to transmission parts (20) front end first by pressurizer (29), sealing ring b (30), locating piece (31),
Then tapered roller bearing a (8) are installed, spline shell (22) and bearing retainer (21) is combined together, successively add upper
Depressor (23), torque transfer member (24), upper speed change gear wheel (25), pinion shaft (26), pinion gear (27), lower speed change canine tooth
Wheel (28), lower pressurizer (29) are installed on interior eccentric annulate shaft (32), then install locating piece (31), finally by sealing ring b (30)
It is installed to shell (19) front end；The deflection mechanism includes interior eccentric annulate shaft (32), outer eccentric annulate shaft (33), lock-on connection
(34), sealing ring c (35), rectangular seal c (36), rectangular seal d (37), outer eccentric hoop (38), interior eccentric hoop (39), axis
Group (40) are held, after bearing group (40) is installed on mandrel (7), interior eccentric annulate shaft (32) are installed, then interior eccentric hoop (39) are installed,
It is connect between interior eccentric hoop (39) and interior eccentric annulate shaft (32) using spline, outer eccentric hoop (38) is connected in by welding manner
Rectangular seal c (36) and rectangular seal d (37) are installed to sealing ring c (35) corresponding position by outer bias annulate shaft (33) front end
It sets, composition seal combination is co-mounted on outer eccentric annulate shaft (33), then installation locking connector (34), and when lower part, assembly is installed
Cheng Hou, by lock-on connection (34) and deflection shell (41) locking；The lower part assembly includes deflection shell (41), ring packing
Enclose (42), fixed frame (43), ball (44), ball retainer (45) and lower contact (46), first by ring type seal (42) and
Fixed frame (43) is installed to deflection shell (41) front end, pacifies together after then assembling ball (44) and ball retainer (45)
It is attached to mandrel (7) front end, lower contact (46) finally are installed.
2. the drilling tool according to claim 1 for realizing rotary steering function using change gear train, it is characterised in that: institute
The upper pressurizer (23) and lower pressurizer (29) stated can produce axial force, act on speed change gear wheel (25) and lower speed change is big
On gear (28), change the transmission ratio of transmission gear assembly, to adjust the revolving speed of outer eccentric hoop (38) and interior eccentric hoop (39)
Difference realizes the adjusting of different eccentricities, and lower part assembly is made to generate controllable deflection, realizes the rotary steering function of drilling tool.
3. the drilling tool according to claim 1 for realizing rotary steering function using change gear train, it is characterised in that: institute
Transmission parts (20), bearing retainer (21), spline shell (22), torque transfer member (24) and the upper speed change gear wheel stated
(25) spline structure connection is all made of between, to transmit the revolving speed of governor gear assembly output.
4. the drilling tool according to claim 1 for realizing rotary steering function using change gear train, it is characterised in that: institute
The spline shell (22) stated is symmetrical 2, and ball (44) quantity is 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910450388.8A CN110185393A (en) | 2019-05-28 | 2019-05-28 | The drilling tool of rotary steering function is realized using change gear train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910450388.8A CN110185393A (en) | 2019-05-28 | 2019-05-28 | The drilling tool of rotary steering function is realized using change gear train |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110185393A true CN110185393A (en) | 2019-08-30 |
Family
ID=67718184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910450388.8A Pending CN110185393A (en) | 2019-05-28 | 2019-05-28 | The drilling tool of rotary steering function is realized using change gear train |
Country Status (1)
| Country | Link |
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| CN (1) | CN110185393A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110671050A (en) * | 2019-09-29 | 2020-01-10 | 北京工业大学 | Directional rotary steering drilling tool |
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| CN110671050A (en) * | 2019-09-29 | 2020-01-10 | 北京工业大学 | Directional rotary steering drilling tool |
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Application publication date: 20190830 |
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