Progressive cavity motors using composite materials 机翻标题: 暂无翻译,请尝试点击翻译按钮。

公开号/公开日
CA2311895 / 1999-06-03
申请号/申请日
1998-11-05 /
发明人
WOOD STEVEN M ([US])SPENCER BRIAN E ([US]);
申请人
WOOD STEVEN M ([US]);
主分类号
IPC分类号
F04C-002/107B29C-053/58B29C-053/60E21B-004/02F03C-002/08F04C-002/08
摘要
The stator, rotor and/or flex shaft of a progressive cavity motor is made up of composite materials, e.g., fiberglass and resin, in a variety of combinations with and without bonded resilient elastomers.The composites are formulated to provide resiliency and non-resiliency where needed.The flex shaft between the rotary power source and the rotor is made of composite materials and designed to absorb the orbital and gyrational movement of the rotor.
机翻摘要
暂无翻译结果,您可以尝试点击头部的翻译按钮。
地址
代理人
代理机构
;
优先权号
(CA2311895) US08/979,290 WOUS9823569
主权利要求
(CA2311895) CLAIMS: 1. A progressive cavity motor comprising: a fixed stator having an internal helical groove; a helical rotor operational within a cavity formed between said stator and said rotor, at least one of said stator and said rotor comprised of a composite material formed of a plurality of filament fibers impregnated with a thermal setting resin; means to rotate said rotor by passing pressure fluid into said cavity; and means to connect the rotation of said rotor to rotary driven apparatus. 2. The progressive cavity motor of claim 1 wherein said stator includes an elastomeric inner surface in contact with said rotor. 3. The progressive cavity motor of claim 1 wherein said stator is an elastomeric lined composite and said rotor is steel. 4. The progressive cavity motor of claim 1 wherein said rotor includes a composite flex shaft connected to said rotary driven apparatus. 5. The progressive cavity motor of claim 4 wherein said flex shaft comprises at least one metal end fitting connected to composite material, said metal end fitting having means to attach to said rotor. 6. The progressive cavity motor of claim 5 wherein each said metal end fitting comprises, axially, an inner surface portion to receive said composite and an outer portion having means to connectwith said rotor, and a flange, of diameter substantially equal to a desired diameter of said flex shaft therebetween said inner and outer portions, said inner portion having a reduced diameter neck between a larger polysided shank and said flange. 7. The progressive cavity motor of claim 6 wherein said composite material is formed by a filament winding process in alternate layers at opposed angles to the axis of said flex shaft. 8. The progressive cavity motor of claim 4 wherein said flex shaft comprises first composite end fitting and a second composite end fitting between which and connected thereto is a composite material, said first end having means to attach to said rotor, said second end having means to attach to said rotary driven apparatus. 9. The progressive cavity motor of claim 8 wherein each said first and second composite end fitting comprises, axially, an inner surface portion to receive said composite and an outer portion having means to connect with said rotor, and a flange, of diameter substantially equal to a desired diameter of said flex shaft therebetween said inner and outer portions, said inner portion having a reduced diameter neck between a larger polysided shank and said flange. 10. The progressive cavity motor of claim 9 wherein said composite material is formed by a filament winding process in alternate layers at opposed angles to the axis of said flex shaft. 11. A progressive cavity motor comprising: a stator, said stator formed of a unitary support section having an outer cylindrical surface and a bonded internal helical surface section, said support section comprised of a substantially non-resilient composite material formed of a filament fiber from the group of carbon fibers, boron fibers, ceramic fibers, glass fibers, thermoplastic fibers, natural fiber, metallic fibers, and synthetic fibers which are impregnated with a thermal setting resin; said helical surface section comprised of a bonded resilient elastomer material; a helical rotor operational within a cavity in said stator; means to supply pressure fluid to said cavity to rotate said rotor; and means to connect the rotation of said rotor to rotary driven apparatus. 12. The motor of claim 11 wherein said bonded material is a resilient composite. 13. The motor of claim 11 wherein said rotor is a rigid composite. 14. The motor of claim 11 wherein said rotor comprises an internal rigid composite material bonded to an outer resilient material. 15. The motor of claim 14 wherein said resilient material is an elastomer. 16. The motor of claim 14 wherein said resilient material is a composite. 17. The motor of claim 11 wherein said rotor is connected to a composite material flex shaft. 18. The motor of claim 17 wherein said flex shaft comprises a body formed of spaced metal end fittings for connection to said rotor at one end and to the rotary driven apparatus at the other end, said body formed of a flexible and axial mandrel connected to each said fitting, and composite filament and resin windings around said mandrel form said body. 19. The motor of claim 18 wherein said filament windings and resin are wound at alternate opposed angles to the axis of said mandrel. 20. The motor of claim 18 wherein a flex section is created in said flex shaft. 21. The motor of claim 20 wherein said portions of said filament windings and resin are wound at opposed angles to said axis while another portion is wound at 45 to create said flex section. 22. The motor of claim 20 wherein said flex section is formed of an inward indentation. 23. The motor of claim 22 wherein said indentation is curved. 24. The motor of claim 22 wherein said indentation is concave in axial cross-section. 25. The motor of claim 17 wherein said flex shaft comprises a body formed of spaced composite end fittings for connection to said rotor at one end and to the rotary driven apparatus at the other end said body formed of a flexible and axial mandrel connected to each said fitting, and composite filament and resin windings around said mandrel to create said body. 26. The motor of claim 25 wherein said filament windings and resin are wound at alternate opposed angles to the axis of said mandrel. 27. The motor of claim 25 wherein a flex section is created in said flex shaft. 28. The motor of claim 27 wherein said portions of said filament windings and resin are wound at opposed angles to said axis while another portion is wound at 45 to create said flex section. 29. The motor of claim 27 wherein said flex section is formed of an inward indentation. 30. The motor of claim 29 wherein said indentation is curved. 31. The motor of claim 30 wherein said curve is concave in axial cross-section. 32. A progressive cavity motor comprising; a stator having an internal helical groove; a helical rotor operational with said stator forming cavities therebetween; means to supply pressure fluid to said cavities to cause rotation of said rotor; and a flex shaft formed of composite materials connected to said rotor at one end and to a rotary driven apparatus at the other end. 33. The motor of claim 32 wherein said rotary driven apparatus is a well drilling bit. 34. A progressive cavity motor comprising; a fixed stator, said stator formed of a unitary support section comprised of a composite material with an internal helical surface layer comprised of a material bonded to said helical surface section wherein said composite material is formed from a plurality of filament fibers impregnated with a thermal setting resin; a helical rotor, operational within said stator forming cavities therebetween; and means to supply pressure fluid to said cavities to cause rotation of said rotor. 35. The motor of claim 34 wherein the rotation of said rotor is connected to a well drilling bit. 36. A progressive cavity motor comprising: a fixed stator having an internal helical groove; a helical rotor operational within a cavity formed between said stator and said rotor; at least one of said stator and said rotor comprised of a composite material wherein said composite material is formed of a plurality of filament fibers impregnated with a thermal setting resin; means to rotate said rotor by passing pressure fluid into said cavity; and connecting the means to rotate said rotor to rotary driven apparatus, wherein said rotor includes a composite flex shaft connected to said rotary driven apparatus. 37. The progressive cavity motor of claim 36 wherein said stator includes an elastomeric inner surface in contact with said rotor. 38. The progressive cavity motor of claim 36 wherein said stator is an elastomeric lined composite and said rotor is steel. 39. The progressive cavity motor of claim 36 wherein said flex shaft comprises at least one metal end fitting connected to composite material, said metal end fitting having means to attach to said rotor. 40. The progressive cavity motor of claim 39 wherein each said metal end fitting comprises, axially, an inner surface portion to receive said composite and an outer portion having means to connect with said rotor, and a flange, of diameter substantially equal to a desired diameter of said flex shaft therebetween said inner and outer portions, said inner portion having a reduced diameter neck between a larger polysided shank and said flange. 41. The progressive cavity motor of claim 40 wherein said composite material is formed by a filament winding process in alternate layers at opposed angles to the axis of said flex shaft. 42. The progressive cavity motor of claim 36 wherein said flex shaft comprises first composite end fitting and a second composite end fitting between which and connected thereto is a composite material, said first end having means to attach to said rotor, said second end having means to attach to said rotary driven apparatus. 43. The progressive cavity motor of claim 42 wherein each said first and second composite end fitting comprises, axially, an inner surface portion to receive said composite and an outer portion having means to connect with said rotor, and a flange, of diameter substantially equal to a desired diameter of said flex shaft therebetween said inner and outer portions, said inner portion having a reduced diameter neck between a larger polysided shank and said flange. 44. The progressive cavity motor of claim 43 wherein said composite material is formed by a filament winding process in alternate layers at opposed angles to the axis of said flex shaft. 45. A progressive cavity motor comprising: a stator, said stator formed of a unitary support section having an outer cylindrical surface and a bonded internal helical surface section, said support section comprised of a substantially non-resilient composite material formed of a filament fiber from the group of carbon fibers, boron fibers, ceramic fibers, glass fibers, thermoplastic fibers, natural fiber, metallic fibers, and synthetic fibers which are impregnated with a thermal setting resin; said helical surface section comprised of a bonded resilient elastomer material; a helical rotor operational within a cavity in said stator; means to supply pressure fluid to said cavity to rotate said rotor; and means to connect the rotation of said rotor to rotary driven apparatus, wherein said rotor is connected to a composite material flex shaft. 46. The motor of claim 45 wherein said bonded material is a resilient composite. 47. The motor of claim 45 wherein said rotor is a rigid composite. 48. The motor of claim 45 wherein said rotor comprises an internal rigid composite material bonded to an outer resilient material. 49. The motor of claim 48 wherein said resilient material is an elastomer. 50. The motor of claim 48 wherein said resilient material is a composite. 51. The motor of claim 45 wherein said flex shaft comprises a body formed of spaced metal end fittings for connection to said rotor at one end and to the rotary driven apparatus at the other end, said body formed of a flexible and axial mandrel connected to each said fitting, and composite filament and resin windings around said mandrel form said body. 52. The motor of claim 51 wherein said filament windings and resin are wound at alternate opposed angles to the axis of said mandrel. 53. The motor of claim 51 wherein a flex section is created in said flex shaft. 54. The motor of claim 53 wherein said portions of said filament windings and resin are wound at opposed angles to said axis while another portion is wound at -45.degree. to create said flex section. 55. The motor of claim 53 wherein said flex section is formed of an inward indentation. 56. The motor of claim 55 wherein said indentation is curved. 57. The motor of claim 56 wherein said curve is concave in axial cross-section. 58. The motor of claim 45 wherein said flex shaft comprises a body formed of spaced composite end fittings for connection to said rotor at one end and to the rotary driven apparatus at the other end said body formed of a flexible and axial mandrel connected to each said fitting, and composite filament and resin windings around said mandrel to create said body. 59. The motor of claim 58 wherein said filament windings and resin are wound at alternate opposed angles to the axis of said mandrel. 60. The motor of claim 58 wherein a flex section is created in said flex shaft. 61. The motor of claim 60 wherein said portions of said filament windings and resin are wound at opposed angles to said axis while another portion is wound at -45.degree. to create said flex section. 62. The motor of claim 60 wherein said flex section is formed of an inward indentation. 63. The motor of claim 62 wherein said indentation is curved. 64. The motor of claim 63 wherein said curve is concave in axial cross-section.
法律状态

        
专利类型码
A1
国别省市代码
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