A rotary locking mechanism for rack and pinion transmission
A technology of rotating locking mechanism and rack and pinion, which is applied in the direction of wellbore/well components, earthwork drilling, etc., can solve the problems of high risk factor, high labor intensity, and low manual control precision, so as to reduce labor intensity and improve The effect of high production efficiency and reliability
Active Publication Date: 2021-03-02
CNPC BOHAI DRILLING ENG +1
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Problems solved by technology
However, there are disadvantages such as low precision of manual control by operators, high labor intensity, and high risk factor.
Method used
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[0035] The technical solutions of the present invention will be further described in detail below in conjunction with the drawings and embodiments.
[0036] Such as Figure 1-13 As shown, a rack-and-pinion rotating locking mechanism includes a rack-and-pinion rotating locking mechanism and an electromagnetic reversing control system of a rack cylinder. The rack-and-pinion rotating locking mechanism includes a moving beam 8, a rotating lock The central shaft 10 of the tightening mechanism, the delivery outer pipe locking groove 13 inserted in the central shaft 10 of the rotary locking mechanism, and the central shaft 10 of the rotary locking mechanism is symmetrically equipped with a set for locking / releasing delivery. The circular arc locking block 11 of the locking groove 13 of the outer tube, the central shaft 10 of the rotary locking mechanism is also rotated and provided with a rotating cover 9 for driving two circular arc locking blocks 11 to reciprocate in a straight lin...
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The invention relates to a rack-and-pinion rotating locking mechanism. The rack-and-pinion rotating locking mechanism includes a moving beam, a central axis of the rotating locking mechanism, and a delivery outer tube lock inserted in the central axis of the rotating locking mechanism. To tighten the groove, the central axis of the rotary locking mechanism is symmetrically equipped with an arc locking block for locking / releasing the locking groove of the outer layer tube, and the central axis of the rotary locking mechanism is also rotated to drive two A rotary cover with linear reciprocating movement of an arc locking block, and a rack cylinder for driving the rotary cover to rotate clockwise / counterclockwise is provided at the lower end of the moving beam; the electromagnetic reversing control system of the rack cylinder includes ground hydraulic pump station, filter Oil tank, three-position four-way electromagnetic reversing valve, hydraulic lock and rack cylinder. The invention applies the principle of electro-hydraulic control to the rack and pinion rotary locking mechanism of the pressure delivery device, which reduces the labor intensity of the operator, improves the production efficiency, and improves the precision of manual operation control.
Description
technical field [0001] The invention relates to a rotary locking mechanism of a pressurized delivery device for a water injection well in an oil field, in particular to a rotary locking mechanism driven by a rack and pinion. Background technique [0002] Oil field water injection well pressure delivery device usually delivers the tubing packer to the predetermined position inside the production string to realize setting, isolates the internal pressure channel of the production string, realizes the internal plugging of the production string, and then performs normal acidification Operation. The first prerequisite for pressure delivery is to securely lock the rotary locking mechanism of the pressure delivery device with the locking groove of the delivery outer tube, and deliver the tubing packer to the production line through a two-stage hydraulic cylinder in separate strokes. Inside the string. [0003] The rotary locking mechanism of the pressure delivery device usually ne...
Claims
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IPC IPC(8): E21B23/02E21B23/01
CPCE21B23/02E21B23/08
Inventor 平恩顺王林姜有才吴兆亮吴英新李欣张伟辉张乾单茂青杨秋梅
Owner CNPC BOHAI DRILLING ENG