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Chain-type manual locking device for blowout preventer and using method thereof

A technology of locking device and well sealing device, which is used in earth-moving drilling, sealing/packing, wellbore/well components, etc. Safe operation and the effect of eliminating personnel fall injury

Pending Publication Date: 2018-11-13
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the above-mentioned deficiencies in the prior art, the present invention provides a chain-type manual locking device for well capping devices and its use method. One of the purposes of the present invention is to provide a method for guiding the manual locking rod out of the base of the drill floor by using a chain. , safe and efficient operation of the chain-type manual locking device of the capping device, which solves the difficulty and low efficiency of the operator's locking and unlocking operations after the well is controlled and shut in, and the limited space in the base of the drilling floor, standing at a high place Operation causes problems such as personnel falling

Method used

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  • Chain-type manual locking device for blowout preventer and using method thereof
  • Chain-type manual locking device for blowout preventer and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 1 , 2 As shown, a chain type manual locking device of a well plugging device includes at least a drill floor base 9 on which a channel steel 6 is vertically fixed, and a circular manual locking rod is horizontally fixed on the drill floor base 9 5; The upper part of the channel steel 6 is horizontally provided with two square steel manual locking rods 1, the two square steel manual locking rods 1 are arranged in parallel, and the two square steel manual locking rods 1 are both Fixed on the channel steel 6, the other ends of the two square steel manual locking rods 1 are both connected to the locking shaft of the plugging device; a large gear 2 is welded to the two square steel manual locking rods 1 respectively , The circular manual locking lever 5 is welded with two small gears 3, and the two small gears 3 correspond to the large gears 2 on the two square steel manual locking levers 1, and each large gear 2 and the corresponding pinion 3 are connected by ...

Embodiment 2

[0033] On the basis of embodiment 1, the square steel manual locking rod 1 is formed by sleeved connection of a small diameter square steel 1.1 and a large diameter square steel 1.2, and one end of the small diameter square steel 1.1 passes through a fixed bearing 7 and a fixed clip 8 is fixed on the channel steel 6, the other end of the small diameter square steel 1.1 is inserted into the large diameter square steel 1.2, and the other end of the large diameter square steel 1.2 is connected to the locking shaft of the well sealer. The two large gears 2 are respectively welded to two small diameter square steel 1.1 arranged in parallel up and down. The diameter of the small diameter square steel 1.1 is 40 mm, and the diameter of the large diameter square steel 1.2 is 50 mm.

[0034] The circular manual locking rod 5 is composed of a steel pipe 5.1 and a hand wheel 5.2. The hand wheel 5.2 is fixed to one end of the steel pipe 5.1. Two pinions 3 are welded to the other end of the st...

Embodiment 3

[0038] On the basis of the above-mentioned embodiment, this embodiment provides a method for using the chain type manual locking device of the plugging device, which includes the following steps:

[0039] 1) Install one end of the two square steel manual locking rods 1 on the locking shaft of the well sealer, and fix the other end in the fixed bearing 7, and fix the fixed bearing 7 on the channel steel 6 with a fixing clip 8. Steel 6 is fixed on the base 9 of the drill floor;

[0040] 2) Use the bearing 11 and the bearing seat 12 to fix the circular manual locking rod 5 on the base 9 of the drill floor, and use the chain 4 to connect the corresponding large gear 2 and the small gear 3 together;

[0041] 3) Rotate the handwheel 5.2 of the circular manual locking lever 5 to drive its gear and chain, and make the square steel manual locking lever 1 rotate, thereby driving the locking shaft of the sealer to rotate to achieve the sealer lock Or unlock.

[0042] Workers stand on the flat g...

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Abstract

The invention provides a chain-type manual locking device for a blowout preventer and a using method thereof. The chain-type manual locking device comprises a drill floor base; groove steel is vertically fixed to the drill floor base; a round manual locking rod is horizontally fixed to the drill floor base; two square steel manual locking rods are horizontally arranged on the upper portion of thegroove steel and parallelly arranged; one ends of the two square steel manual locking rods are fixed to the groove steel, and the other ends of the two square steel manual locking rods are connected to a blowout preventer locking shaft; a large gear is welded to each of the two square steel manual locking rods; two small gears are welded to the round manual locking rod; and the two small gears andthe large gears on the two square steel manual locking rods correspond in a one-to-one mode, and each large gear and the small gear corresponding to the large gear are connected through a chain. Thegears and the chains conduct transmission by rotating a hand wheel of the round manual locking rod, and thus the blowout preventer locking shaft is driven to rotate to achieve the locking or unlockingeffect of the blowout preventer.

Description

Technical field [0001] The invention belongs to the field of drilling well control, and particularly relates to a chain type manual locking device of a well plugging device and a use method thereof. Background technique [0002] The oil and gas drilling industry is a high-risk industry, and controlling the abnormal high pressure downhole is an important task in drilling engineering. In modern drilling operations, drilling crews generally use ram plugs to control abnormally high pressure downholes. Surface plugs play a vital role especially when dealing with complicated conditions such as overflow and blowout. . [0003] At present, in actual work, the purpose of long-term well closure must be achieved by manual locking devices. However, after the installation of the plug-in device at the oil and gas drilling site, the drill floor cannot be accessed in accordance with well control management standards After the well is shut in, the personnel operate the manual locking rod of the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B33/03
CPCE21B33/03
Inventor 成仁杰米博超李录科石崇东李强贺航史配铭赵廷龙徐英德李成龙刘振菊建锋高小妮鲍煜曲小文刘磊曲艳平孔维升
Owner BC P INC CHINA NAT PETROLEUM CORP
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