CN101882818B - Double-layer shell screw rod drilling tool motor stator - Google Patents
Double-layer shell screw rod drilling tool motor stator Download PDFInfo
- Publication number
- CN101882818B CN101882818B CN 201010228132 CN201010228132A CN101882818B CN 101882818 B CN101882818 B CN 101882818B CN 201010228132 CN201010228132 CN 201010228132 CN 201010228132 A CN201010228132 A CN 201010228132A CN 101882818 B CN101882818 B CN 101882818B
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- Prior art keywords
- stator
- housing
- drilling tool
- positioning sleeve
- screw rod
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- Expired - Fee Related
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- 238000005553 drilling Methods 0.000 title claims abstract description 27
- 239000011248 coating agent Substances 0.000 claims description 12
- 238000000576 coating method Methods 0.000 claims description 12
- 238000000465 moulding Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 5
- WMGSQTMJHBYJMQ-UHFFFAOYSA-N aluminum;magnesium;silicate Chemical compound [Mg+2].[Al+3].[O-][Si]([O-])([O-])[O-] WMGSQTMJHBYJMQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 3
- 150000002910 rare earth metals Chemical class 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 14
- 238000009413 insulation Methods 0.000 abstract description 2
- 230000032683 aging Effects 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 239000000945 filler Substances 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- -1 aeroge Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention relates to a double-layer shell screw rod drilling tool motor stator, aiming at overcoming the defects of high stratum temperature when in deep drilling operation, and short service life of a motor caused by repaid ageing failure of a rubber bushing of the existing screw rod drilling tool motor stator under the condition of high temperature. The upper end of a stator shell (11) is fixedly connected with an upper locating sleeve (2), and the lower end thereof is fixedly connected with a lower locating sleeve (5); the excircle of the shell (11) is smaller than the excircles of the upper locating sleeve (2) and the lower locating sleeve (5); the upper locating sleeve (2) and the lower locating sleeve (5) which are fixedly connected with the shell (11) are fixedly installed at the middle part of the an outer shell (1); heat insulation filler (4) or an axial liquid flow channel (7) is arranged between the excircle of the shell (11) and an inner hole of the outer shell (1); or the space between excircle of the shell and the inner hole of the outer shell is vacuum. The double-layer shell screw rod drilling tool motor stator has the advantages of being simple and reasonable in structure and convenient for assembly, effectively reducing the influence of the high stratum temperature for a stator, and prolonging the service life of a screw rod drilling tool.
Description
Affiliated technical field
The present invention relates to a kind of screw drilling tool motor stator, especially relate to a kind of double-layer shell screw rod drilling tool motor stator.
Background technology
Helicoid hydraulic motor is the widely used mud motor of oil drilling, mainly comprises by-pass valve assembly, motor assembly, universal drive shaft assembly and driving-shaft assembly, and the composition that from top to bottom is fixedly connected sequentially.Motor is comprised of rotor and stator; Stator is comprised of housing and rubber bushing, and the outer wall of rubber bushing and housing endoporus are bonding; The endoporus of rubber bushing is the continuous helical line style, and cross section is that radial equipartition is petal-shaped, and petal head number is more than 2 or 2, and housing has the screw thread that is connected with the helicoid hydraulic motor miscellaneous part in two ends up and down.At present, the housing of the screw drilling tool stator of extensive use is for waiting wall thickness metal circular tube; The rubber bushing cylindrical is column type (seeing accompanying drawing 1), endoporus is the continuous helical line style, in the course of work under the extruding and High Pressure of rotor, rubber bushing will deform, because the rubber bushing wall thickness do not wait, to be out of shape inhomogeneously, the rubber manufacturing machinery performance of the stator rubber lining under the operating state weakens, affect motor operations efficient, reduce stator useful life.Novel pre-outline type screw drill motor stator (Chinese utility model patent, publication number CN201219215), process in advance a stator case identical or roughly the same with hole shape in the rubber bushing (seeing accompanying drawing 2) at the stator case endoporus, because the wall thickness of stator rubber lining is basic identical, stressed rear distortion is even, the mechanical performance of rubber is enhanced, improve the screw drilling tool motor operating efficiency, prolong stator useful life.But when in the deep drilling operation, formation temperature is high, sometimes can be up to more than 180 ℃, and the heat of down-hole surrounding environment reaches rubber bushing by stator case, and the rubber distortion of losing efficacy under hot conditions causes the screw drilling tool motor Efficiency Decreasing until damage.
Summary of the invention
High in order to overcome when the deep drilling operation formation temperature, the rubber bushing of existing screw drilling tool motor stator lost efficacy distortion soon under hot conditions, cause motor short deficiency in useful life, the invention provides a kind of double-layer shell screw rod drilling tool motor stator.This double-layer shell screw rod drilling tool motor stator can delay the conduction of stratum heat, effectively prolongs helicoid hydraulic motor useful life.
The technical solution adopted for the present invention to solve the technical problems is: the stator of double-layer shell screw rod drilling tool motor stator comprises housing and rubber bushing, rubber bushing is bonded in the housing identical with its outer contour shape, stator is positioned at shell body, the upper end of housing is fixedly connected with upper positioning sleeve, the lower end is fixedly connected with lower positioning sleeve, and the housing cylindrical is less than the cylindrical of upper positioning sleeve, lower positioning sleeve; The upper positioning sleeve that is fixedly connected with housing and lower positioning sleeve are fixedly mounted on the shell body middle part, between the cylindrical of stator case and the shell body endoporus annular space are arranged, and housing outer surface has heat insulating coat; The shell body bore area has heat insulating coat; The shell body outer round surface has heat insulating coat.The material of heat insulating coat is rare-earth thermal insulating coating or application type composition silicate insulating moulding coating.The application type composition silicate insulating moulding coating of heat insulating coat is the composite aluminium-magnesium-silicate insulating moulding coating.The thickness of heat insulating coat is 0.05～2mm.
The invention has the beneficial effects as follows, simple and reasonable, coating etc. can effectively reduce stratum high-temperature to the impact of stator rubber lining, prolong the useful life of helicoid hydraulic motor.
Description of drawings
Fig. 1 is the existing wall thickness metal circular tube screw drilling tool motor stator structural representation that waits.
Fig. 2 is pre existing outline type screw drill motor stator structural representation.
Fig. 3 is the first embodiment of the invention structural representation.
Fig. 4 is the second embodiment of the invention structural representation.
Fig. 5 is the third embodiment of the invention structural representation.
Fig. 6 is the fourth embodiment of the invention structural representation.
Fig. 7 is the fifth embodiment of the invention structural representation.
Fig. 8 is the sixth embodiment of the invention structural representation.
Among the figure: 1. shell body, 2. go up positioning sleeve, 3. screw thread, 4. thermal insulating filling 5. descends positioning sleeve, 6. inner convex platform, 7. axial liquid circulation road, 8. liquid opening, 9. heat insulating coat, 10. hole, 11. housings, 12. rubber bushings, 13. annular spaces.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
Double-layer shell screw rod drilling tool motor stator of the present invention, mainly comprise stator, upper positioning sleeve 2, lower positioning sleeve 5, stator is comprised of housing 11 and rubber bushing 12, and rubber bushing 12 can be (referring to the accompanying drawing 2) that waits wall thickness, also can be (referring to the accompanying drawing 1) that does not wait wall thickness.Rubber bushing 12 is bonded in the housing identical or roughly the same with its outer contour shape 11.There is the screw thread 3 that is connected with the helicoid hydraulic motor miscellaneous part upper end of shell body 1, lower end, and normally the upper end is connected with the bypass valve housing, and the lower end is connected with universal shaft housing.
First embodiment of the invention (referring to accompanying drawing 3), the upper end of housing 11 is fixedly connected with upper positioning sleeve 2, and the lower end is fixedly connected with lower positioning sleeve 5, and housing 11 cylindricals are less than the cylindrical of upper positioning sleeve 2, lower positioning sleeve 5; The upper positioning sleeve 2 that is fixedly connected with housing 11 and lower positioning sleeve 5 are fixedly mounted on shell body 1 middle part, namely between the connecting thread 3 of shell body 1 upper/lower terminal, between the cylindrical of housing 11 and shell body 1 endoporus annular space 13 are arranged; Thermal insulating filling 4 is installed in the annular space 13.
Second embodiment of the invention (referring to accompanying drawing 4), housing 11 is installed in the shell body 1, and the upper/lower terminal of housing 11 is fixedly connected with shell body 1, between housing 11 middle part cylindricals and shell body 1 endoporus annular space 13 is arranged; Thermal insulating filling 4 is installed in the annular space 13.
Thermal insulating filling 4 among above-mentioned first and second embodiment can have multiple choices, usually selects the poor material of heat conductivility, such as polystyrene, aeroge, resin, super glass wool, phenolic foam, high silica wool, liquid etc.The thermal insulating filling 4 of filling can be homogenous material, also can be the combination more than 2 kinds or 2 kinds in the above-mentioned material.
Third embodiment of the invention (referring to accompanying drawing 5), the upper end of housing 11 is fixedly connected with upper positioning sleeve 2, and the lower end is fixedly connected with lower positioning sleeve 5, and housing 11 cylindricals are less than the cylindrical of upper positioning sleeve 2, lower positioning sleeve 5; The upper positioning sleeve 2 that is fixedly connected with housing 11 and lower positioning sleeve 5 are fixedly mounted on shell body 1 middle part, namely between the connecting thread 3 of shell body 1 upper/lower terminal, between the cylindrical of housing 11 and shell body 1 endoporus annular space 13 are arranged; Annular space 13 is seal cavity, is vacuum in the annular space 13, also can be full of air or other gas.
Fourth embodiment of the invention (referring to accompanying drawing 6), housing 11 is installed in the shell body 1, and the upper/lower terminal of housing 11 is fixedly connected with shell body 1, between housing 11 middle part cylindricals and shell body 1 endoporus annular space 13 is arranged; Annular space 13 is seal cavity, is vacuum in the annular space 13, also can be full of air or other gas.
When the annular space 13 when between housing 11 cylindricals and shell body 1 endoporus among third and fourth embodiment of the present invention is vacuum, should have to vacuumize used hole 10.Hole 10 can be at housing 11 or/and shell body 1 or/and on positioning sleeve 2 or/and on the lower positioning sleeve 5.Hole 10 can be axial, also can be radially, exhausts after the vacuum hole 10 sealings are got final product; Simultaneously, upper positioning sleeve 2, lower positioning sleeve 5 can adopt rubber seal or other sealing means with housing 11, will carry out sealing when shell body 1 is fixedly connected with.
Fifth embodiment of the invention (referring to accompanying drawing 7), the upper end of housing 11 is fixedly connected with upper positioning sleeve 2, and the lower end is fixedly connected with lower positioning sleeve 5, and housing 11 cylindricals are less than the cylindrical of upper positioning sleeve 2, lower positioning sleeve 5; The upper positioning sleeve 2 that is fixedly connected with housing 11 and lower positioning sleeve 5 are fixedly mounted on shell body 1 middle part, between the cylindrical of housing 11 and shell body 1 endoporus axial liquid circulation road 7 are arranged; There is liquid opening 8 that bore of stator is communicated with axial liquid circulation road 7 on upper positioning sleeve 2 and the lower positioning sleeve 5.
Sixth embodiment of the invention (referring to accompanying drawing 8), housing 11 is installed in the shell body 1, and the upper/lower terminal of housing 11 is fixedly connected with shell body 1, usually adopts to be threaded or welding manner.Between housing 11 middle part cylindricals and shell body 1 endoporus annular space 13 is arranged; There is liquid opening 8 that bore of stator is communicated with axial liquid circulation road 7 on the housing 11.
Liquid opening 8 among the present invention the 5th, six embodiment can be axial, also can be radially.During drillng operation, mud liquid can pass through successively liquid opening 8, axial liquid circulation road 7, liquid opening 8 and flow from top to bottom, so that stator obtains effective cooling.
Above-described embodiment all can realize reducing stratum high-temperature to the purpose of stator rubber lining impact, improves the useful life of helicoid hydraulic motor in high-temperature stratum.
In order to guarantee that double-layer shell screw rod drilling tool motor stator of the present invention at high temperature during construction operation, reduces formation temperature to the adverse effect of rubber bushing, can be at the inside and outside surface spraying heat insulating coat 9 of stator case 11 outer surfaces, shell body 1; The heat insulating coat 9 multiselects material of good heat-insulation effect, as: composite aluminium-magnesium-silicate insulating moulding coating, rare-earth thermal insulating coating, application type composition silicate insulating moulding coating etc.; The thickness of heat insulating coat 9 is 0.05～2mm, and effect was relatively good when heat insulating coat 9 thickness were 0.2～1mm usually.
Double-layer shell screw rod drilling tool motor stator of the present invention, stator case 11 is fixedly connected with the endoporus of upper positioning sleeve 2, lower positioning sleeve 5 usually, adopt the connected modes such as screw thread, alignment pin, key (spline, flat key), welding all can, also can adopt the eccentric shaft mode; In the endoporus of upper positioning sleeve 2 upper ends, lower positioning sleeve 5 lower ends inner convex platform 6 can be arranged, with housing 11 axial restraints.After upper positioning sleeve 2, housing 11, lower positioning sleeve 5 are fixedly connected with, be installed in again between the connecting thread 3 of shell body 1 endoporus upper/lower terminal; Can adopt modes such as being threaded, selling connection, key connection, welding to be fixedly connected with, adopt wherein a kind of or its combination all can.
It should be noted, above-described embodiment is example and unrestricted the present invention, and those skilled in the art can design a lot of alternate embodiments and not break away from the scope of claims.
Claims (4)
1. double-layer shell screw rod drilling tool motor stator, comprise stator, shell body, stator comprises housing and rubber bushing, rubber bushing is bonded in the housing identical with its outer contour shape, stator is positioned at shell body, the upper end of housing is fixedly connected with upper positioning sleeve, and the lower end is fixedly connected with lower positioning sleeve, and the housing cylindrical is less than the cylindrical of upper positioning sleeve, lower positioning sleeve; The upper positioning sleeve that is fixedly connected with housing and lower positioning sleeve are fixedly mounted on the shell body middle part, between the cylindrical of stator case and the shell body endoporus annular space are arranged, and it is characterized in that: described housing (11) outer surface has heat insulating coat (9); Described shell body (1) bore area has heat insulating coat (9); Described shell body (1) outer round surface has heat insulating coat (9).
2. described double-layer shell screw rod drilling tool motor stator according to claim 1, it is characterized in that: the material of described heat insulating coat (9) is rare-earth thermal insulating coating or application type composition silicate insulating moulding coating.
3. described double-layer shell screw rod drilling tool motor stator according to claim 2, it is characterized in that: the application type composition silicate insulating moulding coating of described heat insulating coat (9) is the composite aluminium-magnesium-silicate insulating moulding coating.
4. according to claim 2 or 3 described double-layer shell screw rod drilling tool motor stators, it is characterized in that: the thickness of described heat insulating coat (9) is 0.05～2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010228132 CN101882818B (en) | 2010-07-14 | 2010-07-14 | Double-layer shell screw rod drilling tool motor stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010228132 CN101882818B (en) | 2010-07-14 | 2010-07-14 | Double-layer shell screw rod drilling tool motor stator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101882818A CN101882818A (en) | 2010-11-10 |
| CN101882818B true CN101882818B (en) | 2013-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010228132 Expired - Fee Related CN101882818B (en) | 2010-07-14 | 2010-07-14 | Double-layer shell screw rod drilling tool motor stator |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089241B (en) * | 2011-11-07 | 2016-01-13 | 航天特种材料及工艺技术研究所 | A kind of heat insulation and preservation device |
| EP2887499B1 (en) * | 2013-12-18 | 2017-06-28 | Siemens Aktiengesellschaft | Stator insulation for cold magnets |
| CN107819363B (en) * | 2016-09-12 | 2020-01-07 | 中国石油天然气集团公司 | Motor stator and manufacturing method thereof |
| JP7365789B2 (en) * | 2019-05-16 | 2023-10-20 | 株式会社マキタ | electric work equipment |
| CN112865346B (en) * | 2021-01-20 | 2021-11-30 | 深圳市康弘环保技术有限公司 | AC motor capable of reducing electromagnetic sound during operation |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2510674Y (en) * | 2001-10-19 | 2002-09-11 | 大港油田集团有限责任公司 | Screw drilling tool drive shaft sealing device |
| CN200949421Y (en) * | 2006-03-13 | 2007-09-19 | 西南石油学院 | Uniform wall thickness stator screw drill |
| CN201144822Y (en) * | 2008-01-06 | 2008-11-05 | 杨振平 | Uniform wall thickness rubber screw rod stator |
| CN201486465U (en) * | 2009-09-02 | 2010-05-26 | 中国石油集团渤海石油装备制造有限公司 | Screw drill motor rotor anti-falling device |
| CN201813223U (en) * | 2010-07-14 | 2011-04-27 | 中国石油集团渤海石油装备制造有限公司 | Motor stator of filling type screw drilling tool with double-layer shell |
| CN201742182U (en) * | 2010-07-14 | 2011-02-09 | 中国石油集团渤海石油装备制造有限公司 | Motor stator of self-cooling screw drilling tool with dual-layer shells |
| CN201742176U (en) * | 2010-07-14 | 2011-02-09 | 中国石油集团渤海石油装备制造有限公司 | Vacuum double-layer shell screw drilling tool motor stator |
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2010
- 2010-07-14 CN CN 201010228132 patent/CN101882818B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN101882818A (en) | 2010-11-10 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20101110 Assignee: Bohai petroleum equipment (Tianjin) Zhong Cheng Machinery Manufacturing Co., Ltd. Assignor: CNPC Bohai Equipment Manufacturing Co., Ltd. Contract record no.: 2014120000091 Denomination of invention: Double-layer shell screw rod drilling tool motor stator Granted publication date: 20130220 License type: Exclusive License Record date: 20141029 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180807 Address after: 300467, Second Avenue, Tianjin economic and Technological Development Zone 83, 16 floor, Tianjin building, China Petroleum. Co-patentee after: Bohai petroleum equipment (Tianjin) Zhong Cheng Machinery Manufacturing Co., Ltd. Patentee after: CNPC Bohai Equipment Manufacturing Co., Ltd. Address before: 300280 Chuan Gang Road, Dagang Oilfield, Tianjin Patentee before: CNPC Bohai Equipment Manufacturing Co., Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200925 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Petroleum Equipment Manufacturing Co.,Ltd. Patentee after: Bohai Petroleum Equipment (Tianjin) Zhongcheng Machinery Manufacturing Co.,Ltd. Address before: 300467, Second Avenue, Tianjin economic and Technological Development Zone 83, 16 floor, Tianjin building, China Petroleum. Patentee before: CNPC Bohai Petroleum Equipment Manufacturing Co.,Ltd. Patentee before: Bohai Petroleum Equipment (Tianjin) Zhongcheng Machinery Manufacturing Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20210714 |