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Sucker rod anti-tripping connecting device and manufacturing method thereof

A connecting device and anti-tripping technology, applied in the direction of manufacturing tools, drill pipes, earthwork drilling, etc., can solve the problems of sucker rod tripping and insurmountable shackle torque, etc., to reduce tripping and drilling efficiency. The effect of high, enhanced shackle torque capacity

Active Publication Date: 2012-01-25
SHANDONG MOLONG PETROLEUM MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the sucker rods used in pumping unit rod pumps are simply connected by threads to transmit torque. During the process of going into the well and shutting down, the sucker rod itself cannot overcome the breakout torque, which often leads to the frequent disengagement of the sucker rod. buckle

Method used

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  • Sucker rod anti-tripping connecting device and manufacturing method thereof
  • Sucker rod anti-tripping connecting device and manufacturing method thereof
  • Sucker rod anti-tripping connecting device and manufacturing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0021] Such as figure 1 , image 3 and Figure 4 As shown, the sucker rod anti-trip connection device includes a rod body, and the two ends of the rod body are respectively provided with a main connection end 4 and a slave connection end 3, and the main connection end 4 and the slave connection end of the adjacent rod body 3 is provided with a connection device, the connection device includes blind holes 13 respectively arranged on the main connection end 4 and the end surface of the slave connection end 3, the blind hole 13 is eccentrically arranged on the end surface, in the Blind hole 13 is inserted with anti-off shaft 2, and the other end of described anti-off shaft 2 is fixed on the through hole 7 that offers on connecting plate 5, and described main connecting end 4 and the connecting part thread that forms from connecting end 3 Connected with collar 1.

[0022] Such as Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, the method of manufacturing the sucke...

Embodiment 2

[0024] Such as figure 2 and Figure 5 As shown, the structure of this embodiment is basically the same as that of Embodiment 1, the difference is that a locking anti-bending joint 6 is threaded on the slave connection end 3, and the locking and anti-bending joint 6 is axially compressed The collar 1. The two ends of the locking anti-bending joint are respectively a locking end 62 and an anti-bending end 61. Internal threads are provided on the locking end 62, and protrusions 63 are provided on the inner surface of the anti-bending end 61. The protrusion 63 is closely attached to the outer surface of the slave connection end 3 .

[0025] Such as Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, the method of manufacturing the sucker rod anti-trip connection device: tighten the special drilling die on one end of the blank 11 of the rod body, and make the positioning surface 12 of the disc on the special drilling die close to the blank 11 The end surface of the bl...

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Abstract

The invention discloses a sucker rod anti-tripping connecting device which comprises a rod body, wherein master connecting ends and slave connecting ends are respectively arranged at both ends of the rod body, a connecting device is arranged between the adjacent master and slave connecting ends of the rod body, the connecting device comprises blind holes which are respectively arranged on the endsurfaces of the master connecting end and the slave connecting end, the blind holes are eccentrically arranged on the end surfaces, anti-tripping shafts are inserted in the blind holes, the other endof each anti-tripping shaft is fixed on a connecting disk, and a connecting part formed by the master connecting ends and the slave connecting ends are connected with a coupling through threads; eachconnecting disk is arranged between each master connecting end and each slave connecting end, and the anti-tripping shafts fixed on the connecting disks are respectively arranged on the master connecting ends and the slave connecting ends, enhancing the capability of a sucker rod for overcoming breakout torque and reducing the occurrence of tripping conditions; and a special drilling mould is used for finishing the operation of drilling the blind holes on the master connecting ends and the slave connecting ends, achieving accurate and convenient positioning and higher drilling efficiency.

Description

technical field [0001] The invention relates to a sucker rod connection device and a method for manufacturing the connection device. Background technique [0002] In oil extraction, most of the crude oil in the oil layer is extracted by artificial lift. One of the artificial lift production methods, pumping unit with rod pump is the most widely used production method at home and abroad. Because of simple equipment, low investment, convenient management and strong adaptability, rod pumps have been widely used in oil production. Domestic rod pump oil production accounts for about 90% of the total number of artificial lift oil production wells, so the performance of rod pump oil production equipment plays a decisive role in the field of oil production. [0003] Rod pump oil production equipment mainly includes surface pumping unit, downhole sucker rod and pump, and the working condition of the sucker rod is directly related to the level of production efficiency. At present, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B17/043B21D37/10B21D28/24
Inventor 张云三国焕然黎新春梁永强郭玉林岳德安
Owner SHANDONG MOLONG PETROLEUM MACHINERY
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