Small volume lifting device

Abstract

The present invention mainly aims to provide a drill pipe lifting device (20) with single entry and exit, one-time operation and small volume, which includes a cylindrical containing body (21) to support internal tools and mechanisms, a rotatable long The shaft (23), penetrates its top cover (24), and drives the internal mechanism. When the top cover (24) moves down, it rotates the housing body (21). There are two groups of keys (32), which are distributed respectively in the horizontally arranged holes in the housing body (21). The lubricating tool passes through the hole in the containing body (21) and is arranged in the bottom of the containing body (21). A cylindrical cutting block (40) with four cutting outlets is arranged in the containing body (21). ), and finally, three cameras are set up. The lifting operation begins by cutting two sets of holes in the drill pipe (22), lubricating the holes, using a key, pushing the drill pipe (22) right / left and up / down through the key, penetrating the oil, and Drill pipe (22) lifts upwards.

Description

technical field [0001] The present invention relates to a device for picking up a jammed pipe, releasing it from the jammed place, and then retracting it from the surface. Background technique [0002] Lifting of equipment or other objects due to failure or jamming by the drilling crew using special tools or devices from a hole such as a return portion of the drill string (drill pipe) is quite expensive, Time-consuming, complicated and dangerous process, especially working in a hostile and high-stress environment, mainly due to differential pressure sticking. The original patent for hoisting technology in the oil field is patent 2,972,380 obtained by A.G. Bodine in 1961, which introduces the concept of resonance, which is mainly reactance that effectively eliminates mechanical impedance, and thus can lead to effective sound wave transmission. use The pressure detection technique of the point tool is used to find a specific pressure accumulation point in the pipe body, wh...

AI Technical Summary

Problems solved by technology

Vibration technology can achieve 90% success rate, but it is still limited by the length of the drill pipe, from 10 to 220 meters, which means it is limited by the depth of the well

[0003] Therefore, the release of the stuck drill pipe does not necessarily have to be successful the first time. In many different steps, various forms of procedures and tools need to be used until the release is successful; this approach is considered Quite expensive when it comes to time and money, even though some devices claim to be a single tool (comprehensive tool) to perform all the steps or procedures for releasing the stuck drill pipe in a single entry hole (single procedure operation ) to operate, just like in US Patent No.: US 2,830,663; US 2,090,616; US 1,968,282; and US 5,810,410, but none of the above patents can achieve: a-lubrication; b-vibration; c- Pull up the drill pipe in a single operation procedure

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