CN200949421Y - Uniform wall thickness stator screw drill - Google Patents
Uniform wall thickness stator screw drill Download PDFInfo
- Publication number
- CN200949421Y CN200949421Y CN 200620033429 CN200620033429U CN200949421Y CN 200949421 Y CN200949421 Y CN 200949421Y CN 200620033429 CN200620033429 CN 200620033429 CN 200620033429 U CN200620033429 U CN 200620033429U CN 200949421 Y CN200949421 Y CN 200949421Y
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- thickness
- well
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Abstract
An equal-wall-thickness stator screw drilling tool, which is separately connected by a bypass valve assembly, a screw motor assembly, a universal shaft assembly and a transmission shaft assembly. The screw motor assembly comprises an equal-wall-thickness stator arranged inside the motor shell body, a rubber bushing and a rotor arranged inside the cavity of the stator. The inner and outer walls of the equal-wall-thickness stator are all arranged with spiral grooves to make the wall thickness basically uniformed, the rubber bushing attached inside the stator not only forms a spiral bent surface cavity with the rotor but also that the outer part of the bushing can form a spiral groove with the shell body to provide drilling fluid to circulate. The rotor is a steel-made screw with the surface plated with abrasion tolerant material, the lower end of the rotor is connected with the universal shaft assembly, the lower end of which is connected with the transmission shaft assembly. The utility model can realize large flow and low rotation speed drilling, and can be used to drill wells with special techniques, such as directional well, high-inclined well, horizontal well, extended-reach well, multi-branch well, cluster well and so on.
Description
Affiliated technical field
The utility model relates to the same wall-thickness stator helicoid hydraulic motor that a kind of oil drilling is used.
Background technology
Helicoid hydraulic motor is the most widely used at present a kind of and following power drilling tool, is mainly used in the deflecting of directional well, horizontal well and turns round the orientation construction, and a part also is used for straight well left-hand thread or sidetracking operation.U.S.'s the mid-50 begins to develop helicoid hydraulic motor, be used in 1962 producing, the enlightening that has of different manufacturers production is received drilling tool (Smith company), Navi-Drill (Christensen company) and Persian drilling tool, its basic principle all is based on positive displacement motor, and just internal construction is slightly different with technical data.Over nearly 10 years, along with the emerge in multitude of horizontal well, radial well, branch horizontal well, the development of helicoid hydraulic motor has also produced qualitative leap.But use in the helicoid hydraulic motor drilling process, need big flow, low drilling speed to creep into usually, but conventional helicoid hydraulic motor rotating speed and mud flow rate are directly proportional, augmented flow must cause rotating speed to increase, and drill bit high speed rotational life reduces, and influences drilling efficiency.
The utility model content
In order to realize big flow, the slow-speed of revolution is crept into, and the utility model proposes a kind of same wall-thickness stator helicoid hydraulic motor.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of same wall-thickness stator helicoid hydraulic motor is connected to form successively by by-pass valve assembly, screw motor assembly, universal drive shaft assembly, driving-shaft assembly.Described screw motor assembly comprises the rotor that is fixed in same wall-thickness stator, the rubber bushing in the motor shell and is positioned at the stator die cavity.Described same wall-thickness stator inside and outside wall all has helicla flute, makes its wall thickness even substantially, and its inner rubber bushing of fitting can not only form cavity of spiral curved surface with rotor, and its outside is all right and housing forms helicla flute, circulates for drilling fluid.Described rotor is the steel screw rod that a surface is coated with the erosion resistant material.The lower end of described rotor links to each other with the universal drive shaft assembly.The lower end and the driving-shaft assembly of described universal drive shaft assembly join.
Use in the helicoid hydraulic motor drilling process, need big flow, low drilling speed to creep into usually, but conventional helicoid hydraulic motor rotating speed and mud flow rate are directly proportional, augmented flow must cause rotating speed to increase, and drill bit high speed rotational life reduces, and influences drilling efficiency.The utility model proposes a kind of same wall-thickness stator and be used to replace conventional stator, helicla flute is all arranged inside and outside the stator, mud not only can drive the rotor rotation by stator interior, and can shunt through the helicla flute between stator and the housing, carries out landwaste.
The beneficial effects of the utility model are: on the stator inside and outside wall, all mill out helicla flute, and rubber bushing had and the stator similar shapes, tightly be fitted on the stator inner wall, and thin and even.Because drilling fluid can pass through simultaneously from the stator inside and outside wall, heat dispersion when just having improved helicoid hydraulic motor work, can not produce the heat localization effect, and temperature is one of sensible factor that influences stator rubber lining application life, the heat ageing that same wall-thickness stator can slow down rubber because of its good performance of heat dissipation, the application life of further improving drilling tool; Thin and the ability uniform rubber layer of wall thickness resistance to deformation in motion process is good, thereby single-stage pressure-bearing height; Same wall-thickness stator rubber bushing swelling, temperature expand evenly, can guarantee the molded lines of drilling tool preferably, improve sealing performance; Simultaneously,, just can under the situation that does not influence the drilling tool rotating speed, improve large rock-carrying ability, take landwaste out of because the helicla flute on the stator outer wall also can play shunting action so that drilling fluid passes through.In addition, for the situation of unwanted big flow drilling fluid, the stator outer wall is milling spiral chute not also.
The utility model is applicable to the brill special well, as directional well, high angle hole, horizontal well, extended reach well, multilateral well, cluster well etc., can realize big flow, and the slow-speed of revolution is crept into.
Description of drawings
Fig. 1 is by-pass valve assembly, screw motor assembly and the universal drive shaft assembly of helicoid hydraulic motor
Fig. 2 is the screw drill transmission shaft assembly
Fig. 3 is a helicoid hydraulic motor screw motor A-A section
The specific embodiment
The same wall-thickness stator helicoid hydraulic motor is made up of by-pass valve assembly 1, screw motor assembly 2, universal drive shaft assembly 3 and driving-shaft assembly 4.Described screw motor assembly 2 is the positive displacement engines that driven by a drilling fluid, and it is made up of same wall-thickness stator 6, rubber bushing 7 and rotor 8.Described rotor 8 is steel screw rods that a surface is coated with the erosion resistant material, and described same wall-thickness stator 6 is inside and outside steel pipes that spiral camber is all arranged, and its inwall is a vulcanized rubber lining 7.The lower end of rotor 8 links to each other with universal drive shaft assembly 3, and the lower end of universal drive shaft assembly 3 and driving-shaft assembly 4 join.Same wall-thickness stator 6 is fixing, and rotor 8 is done planetary motion around the axis of same wall-thickness stator 6 under the pressure drilling fluid drives.3 of universal drive shaft assemblies partly pass to driving-shaft assembly 4 to the autobiography in rotor 8 planetary motions, and driving-shaft assembly 4 is rotated in fixed axis, and are contained in the drill bit of its lower end with driving.Bypass valve dress assembly 1 is in the upper end of screw motor assembly 2, and its effect is when making a trip (termination of pumping), and the passage of drilling fluid inside and outside the drill string is provided by by-pass port.When drilling tool normally creeps into or during circulating fluid, by-pass port is closed, a pressure drilling fluid part drives rotor through the cavity of spiral curved surface of same wall-thickness stator 6 (rubber bushing 7) and rotor 8, and another part circulates by the helicla flute between same wall-thickness stator 6 and the housing 5.
Claims (2)
1, a kind of same wall-thickness stator helicoid hydraulic motor, connect to form successively by by-pass valve assembly (1), screw motor assembly (2), universal drive shaft assembly (3), driving-shaft assembly (4), it is characterized in that described screw motor assembly (2) comprises the rotor (8) that is fixed in same wall-thickness stator (6), the rubber bushing (7) in the motor shell and is positioned at the stator die cavity.
2, same wall-thickness stator helicoid hydraulic motor according to claim 1, it is characterized in that same wall-thickness stator (6) inside and outside wall all has helicla flute, make its wall thickness even substantially, its inner rubber bushing (7) of fitting can not only and rotor (8) form cavity of spiral curved surface, and its outside all right and housing (5) formation helicla flute, for the drilling fluid circulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620033429 CN200949421Y (en) | 2006-03-13 | 2006-03-13 | Uniform wall thickness stator screw drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620033429 CN200949421Y (en) | 2006-03-13 | 2006-03-13 | Uniform wall thickness stator screw drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200949421Y true CN200949421Y (en) | 2007-09-19 |
Family
ID=38891964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620033429 Expired - Fee Related CN200949421Y (en) | 2006-03-13 | 2006-03-13 | Uniform wall thickness stator screw drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200949421Y (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101850449A (en) * | 2010-04-17 | 2010-10-06 | 内蒙古北方重工业集团有限公司 | Preparation method and equipment of screw drill inside spin pre-outline stator |
| CN101882818A (en) * | 2010-07-14 | 2010-11-10 | 中国石油集团渤海石油装备制造有限公司 | Double-layer shell screw rod drilling tool motor stator |
| CN102146769A (en) * | 2010-02-08 | 2011-08-10 | 张宏亮 | Manufacture method for machining equivalent-thickness rubber inner jacket layer threaded rod drilling tool stator and device thereof |
| CN102418479A (en) * | 2011-08-01 | 2012-04-18 | 西南石油大学 | Axial oscillating tool for drill string |
| CN103321576A (en) * | 2013-07-17 | 2013-09-25 | 西南石油大学 | Tubular column lowering power tractor with well grinding and repairing function |
| CN101656438B (en) * | 2009-09-15 | 2013-10-02 | 江汉石油钻头股份有限公司 | Screw drilling tool motor stator |
| CN103643892A (en) * | 2013-12-17 | 2014-03-19 | 西南石油大学 | Tool for feeding drill strings under drive of screw |
| CN102007269B (en) * | 2008-04-18 | 2014-11-12 | 德莱科能量服务有限公司 | Method and apparatus for controlling downhole rotational rate of a drilling tool |
| CN105264162A (en) * | 2013-05-23 | 2016-01-20 | 哈里伯顿能源服务公司 | Downhole drilling motor and method of use |
| CN107255016A (en) * | 2017-07-25 | 2017-10-17 | 盐城市荣嘉机械制造有限公司 | One kind can adjust hollow shunting screw drill |
| CN108237708A (en) * | 2017-12-29 | 2018-07-03 | 秦皇岛润昌科技开发有限公司 | A kind of oil-gas mining removes rubber complete equipment with common screw drilling tool stator |
| CN110107222A (en) * | 2019-03-26 | 2019-08-09 | 盐城华亚石油机械制造有限公司 | A kind of high sulfur crude gas well special anti-corrosion degumming preventing helicoid hydraulic motor and processing technology |
| CN110374494A (en) * | 2018-04-13 | 2019-10-25 | 中国石油化工股份有限公司 | A kind of helicoid hydraulic motor |
| CN110529037A (en) * | 2019-10-20 | 2019-12-03 | 达坦能源科技（上海）有限公司 | A kind of drilling well assembled screw rod drilling tool |
| CN112504593A (en) * | 2020-12-15 | 2021-03-16 | 桂林航天工业学院 | Water-cooling switching device for thermal vibration test |
-
2006
- 2006-03-13 CN CN 200620033429 patent/CN200949421Y/en not_active Expired - Fee Related
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102007269B (en) * | 2008-04-18 | 2014-11-12 | 德莱科能量服务有限公司 | Method and apparatus for controlling downhole rotational rate of a drilling tool |
| CN101656438B (en) * | 2009-09-15 | 2013-10-02 | 江汉石油钻头股份有限公司 | Screw drilling tool motor stator |
| CN102146769A (en) * | 2010-02-08 | 2011-08-10 | 张宏亮 | Manufacture method for machining equivalent-thickness rubber inner jacket layer threaded rod drilling tool stator and device thereof |
| CN101850449A (en) * | 2010-04-17 | 2010-10-06 | 内蒙古北方重工业集团有限公司 | Preparation method and equipment of screw drill inside spin pre-outline stator |
| CN101882818A (en) * | 2010-07-14 | 2010-11-10 | 中国石油集团渤海石油装备制造有限公司 | Double-layer shell screw rod drilling tool motor stator |
| CN102418479A (en) * | 2011-08-01 | 2012-04-18 | 西南石油大学 | Axial oscillating tool for drill string |
| CN105264162A (en) * | 2013-05-23 | 2016-01-20 | 哈里伯顿能源服务公司 | Downhole drilling motor and method of use |
| CN103321576A (en) * | 2013-07-17 | 2013-09-25 | 西南石油大学 | Tubular column lowering power tractor with well grinding and repairing function |
| CN103643892A (en) * | 2013-12-17 | 2014-03-19 | 西南石油大学 | Tool for feeding drill strings under drive of screw |
| CN103643892B (en) * | 2013-12-17 | 2015-08-05 | 西南石油大学 | A kind of screw drive drill string sends instrument to |
| CN107255016A (en) * | 2017-07-25 | 2017-10-17 | 盐城市荣嘉机械制造有限公司 | One kind can adjust hollow shunting screw drill |
| CN107255016B (en) * | 2017-07-25 | 2019-12-17 | 盐城市荣嘉机械制造有限公司 | Adjustable cavity reposition of redundant personnel screw drill |
| CN108237708A (en) * | 2017-12-29 | 2018-07-03 | 秦皇岛润昌科技开发有限公司 | A kind of oil-gas mining removes rubber complete equipment with common screw drilling tool stator |
| CN108237708B (en) * | 2017-12-29 | 2020-12-18 | 江苏三益石油装备有限公司 | Ordinary screw drill stator rubber sleeve removing equipment for oil and gas exploitation |
| CN110374494A (en) * | 2018-04-13 | 2019-10-25 | 中国石油化工股份有限公司 | A kind of helicoid hydraulic motor |
| CN110374494B (en) * | 2018-04-13 | 2021-09-10 | 中国石油化工股份有限公司 | Screw drilling tool |
| CN110107222A (en) * | 2019-03-26 | 2019-08-09 | 盐城华亚石油机械制造有限公司 | A kind of high sulfur crude gas well special anti-corrosion degumming preventing helicoid hydraulic motor and processing technology |
| CN110107222B (en) * | 2019-03-26 | 2021-05-04 | 盐城华亚石油机械制造有限公司 | Special anti-corrosion and anti-glue-dropping screw drilling tool for high-sulfur-content oil and gas well and machining process |
| CN110529037A (en) * | 2019-10-20 | 2019-12-03 | 达坦能源科技（上海）有限公司 | A kind of drilling well assembled screw rod drilling tool |
| CN112504593A (en) * | 2020-12-15 | 2021-03-16 | 桂林航天工业学院 | Water-cooling switching device for thermal vibration test |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070919 Termination date: 20110313 |