CN2811540Y - Torque sucker rod - Google Patents
Torque sucker rod Download PDFInfo
- Publication number
- CN2811540Y CN2811540Y CN 200520078880 CN200520078880U CN2811540Y CN 2811540 Y CN2811540 Y CN 2811540Y CN 200520078880 CN200520078880 CN 200520078880 CN 200520078880 U CN200520078880 U CN 200520078880U CN 2811540 Y CN2811540 Y CN 2811540Y
- Authority
- CN
- China
- Prior art keywords
- rod
- utility
- model
- drill rod
- sucker rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Earth Drilling (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model discloses a torque sucker rod which is suitable for deepening an oil production pump hanging at the middle and late stages in oil fields. The utility model solves the problem that when the existing sucker rod adopts a screw pump, the downhole breaking and tripping of a rod column can be easily caused. The utility model comprises a rod body and a drill rod coupling, wherein both ends of the rod body is forged with a drill rod joint with a male thread, and the drill rod joint is connected with a taper thread of the drill rod coupling; a chamfer angle in a 1.5 mm position at the end part of the drill rod joint is 60 DEG; a crest is R0.65 round angle transition. On the basis of an H grade sucker rod, both ends of the utility model are processed with drill rod threads, the working principle of drill rod driving and twisting is adopted, and the utility model is matched with the screw pump to realize oil production in a rotating way. The utility model can transfer larger torque and strengthens the smaller pretightening force when the threads are connected.
Description
Technical field
The utility model relates to a kind of bearing torque sucker rod.
Background technology
The early stage common sucker rod of producing of the application unit, owing to bear the effect of axial dynamic loading when underground work, pretightning force is less when directly detaining spiral marking connection, the ability of transfer torque is relatively poor, easily causes the disconnected phenomenon of taking off in roofbolt down-hole.Now can not satisfy at present domestic each oil field middle and later periods oil extraction pump and hang the demand of deepening.Particularly adopting screw pump+conventional sucker rod oil production activity duration, it is higher to take off disconnected accident rate.
The utility model content
The purpose of this utility model provides a kind of oil field middle and later periods oil extraction pump that is applicable to and hangs the bearing torque sucker rod of deepening, to solve the problem that existing sucker rod easily causes roofbolt to break and take off in the down-hole when adopting screw pump.
The utility model comprises the body of rod, drill pipe coupling, forges the tool joint that the band male thread is arranged at the two ends of the described body of rod, and tool joint is connected with the drill pipe coupling taper thread; 1.5mm place, tool joint end chamfering is 60 degree; Crest is the R0.65 round-corner transition.
The utility model is a two ends processing drill rod thread on the basis of H grade pumping rod, has adopted the operating principle of drilling rod torsion pass, and supporting screw pump is realized recovering the oil with rotation mode.The utility model can transfer larger torque, and pretightning force is less when strengthening spiral marking connection.
Below in conjunction with accompanying drawing the utility model is described in further details.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the schematic diagram of the utility model end drill rod thread part;
Fig. 3 drill rod thread thread form of the present utility model schematic diagram;
The specific embodiment
The utility model comprises the body of rod 1, drill pipe coupling 3, forges the tool joint 2 that the band male thread is arranged at the two ends of the body of rod 1, and tool joint 2 is connected with drill pipe coupling 3 taper threads; 1.5mm place, tool joint end chamfering is 60 degree; Crest is the R0.65 round-corner transition.
The straightness accuracy deviation is no more than 3.2mm in the 152mm length on the body of rod.
During application, the tool joint of the band male thread of two bearing torque sucker rods is connected to form rod string when recovering the oil by drill pipe coupling.
The utility model adopts the special modifier treatment of 30CrMo material, reaches the standard-required of super-strength sucker rod.The drill rod thread of end employing band tapering connects the moment of torsion when transmitting the screw pump exploitation.
Major parameter of the present utility model and technical characterictic are as follows:
1, major parameter:
2, process technology feature:
| The process technology feature | Title | Index | Remarks |
| The size and the roughness of antitorque bar head processing part | Meet the requirement of API SPEC 11B standard | ||
| The size of threaded portion and roughness | |||
| The strength grade of the sucker rod that can process: C-H level | HB170-300 | ||
Claims (2)
1, a kind of bearing torque sucker rod comprises the body of rod, drill pipe coupling, it is characterized in that: the tool joint (2) that the band male thread is arranged is forged at the two ends at the described body of rod (1), and tool joint (2) is connected with drill pipe coupling (3) taper thread; 1.5mm place, tool joint end chamfering is 60 degree; Crest is the R0.65 round-corner transition.
2, bearing torque sucker rod according to claim 1, it is characterized in that: the straightness accuracy deviation is no more than 3.2mm in the 152mm length on the body of rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520078880 CN2811540Y (en) | 2005-05-31 | 2005-05-31 | Torque sucker rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520078880 CN2811540Y (en) | 2005-05-31 | 2005-05-31 | Torque sucker rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2811540Y true CN2811540Y (en) | 2006-08-30 |
Family
ID=36937927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520078880 Expired - Lifetime CN2811540Y (en) | 2005-05-31 | 2005-05-31 | Torque sucker rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2811540Y (en) |
-
2005
- 2005-05-31 CN CN 200520078880 patent/CN2811540Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA PETROLEUM +. NATURAL GAS CO., LTD. Free format text: FORMER OWNER: YUMEN PETROL ADMINISTRATION Effective date: 20120321 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 735200 JIUQUAN, GANSU PROVINCE TO: 100007 DONGCHENG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120321 Address after: 100007 Dongcheng District, Dongzhimen, China, North Street, No. 9 Oil Mansion, No. Patentee after: China Petroleum & Natural Gas Co., Ltd. Address before: 735200 middle reaches of Yumen City, Gansu Province Patentee before: Yumen Oil Field Administration |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150531 Granted publication date: 20060830 |