Oil tube dragging automatic locking device and method for well repair operation
An automatic locking, oil pipe technology, applied in drilling pipe, casing, drilling equipment and other directions, can solve the problems of affecting the reliability of the device, slipping of the oil pipe, delaying working time, etc., achieving compact size, ensuring reliability, and simple device structure Effect
Active Publication Date: 2017-11-21
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology
However, in actual work, the locking mechanism has a good application effect in locking drill pipes and other pipe strings with couplings at the end. The oily sludge coated on the outside of the oil pipe often causes the oil pipe to slip when dragging the oil pipe, which affects the reliability of the device and delays the working time
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[0023] The detailed description and technical content of the present invention are described below with the accompanying drawings, but the accompanying drawings are only provided for reference and description, and are not intended to limit the present invention.
[0024] according to Figure 1-6 , an automatic locking device for dragged tubing used in well workover operations, comprising a trolley 1, a base 2, and a locking mechanism. Wherein the small tackle can slide in the slideway. The base 2 includes a bottom plate 21 , a hinged seat 22 for turning over the bottom plate of the pipe rod, a lock block 23 , a front V-groove support plate 24 and a fixed rod 25 . The base 2 is fixed on the trolley 1. The hinged seat 22 and the lock block 23 are symmetrically fixed on the base plate 21, and the lock block 23 has a chute at a certain angle to facilitate the insertion of the sliding pin 82. The front V-groove supporting plate 24 is fixed on the front end of the bottom plate 21...
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The invention discloses an oil tube dragging automatic locking device and method for well repair operation. The oil tube dragging automatic locking device comprises a small tackle and further comprises a base and a lock catch mechanism. The lock catch mechanism comprises a driving rod, a tube and rod overturn seat, a sliding rod, a connecting rod, a pressing rod, a locking sliding pin and a pressing ring, and the tube and rod overturn seat comprises a hinged seat and an overturning V-shaped groove which are used for a tube and rod overturn groove; the lower end of the sliding rod is hinged to the driving rod, and the upper end of the sliding rod is hinged to the rear middle portion of the pressing rod; the rear end of the pressing rod is hinged to the front end of the connecting rod, and the upper end of a fixing rod is hinged to the rear end of the connecting rod; the front end of the pressing rod is connected with the locking sliding pin, and the pressing ring is hinged to the front end of the pressing rod and downwards faces the overturning V-shaped groove; and the bottom end of the locking sliding pin is connected with a locking block in a matched mode. According to the oil tube dragging automatic locking device and method for well repair operation, an oil tube can be automatically locked during the transverse pulling working procedure of the oil tube, and the automatic locking device can be automatically reset when the tackle arrives at the position, so that is it ensured that the tube and rod dragging action is reliable and efficient during transverse pulling and arranging of the tubes and the rods of sucker rods, the oil tube and the like on a slide way.
Description
technical field [0001] The invention relates to a mechanized lifting and lowering oil pipe device for oil and water well operations in an oil field, in particular to an automatic locking device and method for dragging oil pipes for well workover operations. Background technique [0002] When lifting and lowering the pipe string in the workover operation of conventional oil and water wells, the pipe rod is in a vertical state after being pulled out and undocked. Well small pulley, and manually pull the horizontal pipe rod. Because the weight of pipe rods is generally large, the labor intensity of workers is relatively large during the stretching process. In order to reduce the labor intensity of workers, patent No. 201510504264.5 relates to a pipe rod dragging device, which locks the pipe rod through the locking mechanism on the trolley, and drags the trolley through the driving traction mechanism at the end of the slideway. To realize the dragging work of the pipe rod. Ho...
Claims
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IPC IPC(8): E21B19/15
CPCE21B19/155
Inventor付增张雷智勤功唐倩雯汪云家杨斌苏秋涵康杰宋辉辉金鑫
OwnerCHINA PETROLEUM & CHEM CORP