Multipurpose integral cross joint

Abstract

The invention provides a multipurpose integral cross joint, which comprises a cross joint body, wherein the tee joint body is provided with a main channel and two side outlets; the inner wall of the main channel is provided with a load bearing step; the load bearing step is provided with a hanging mechanism; a locking mechanism is assembled between the cross joint body and the hanging mechanism; and a sealing mechanism is assembled between the cross joint body and the hanging mechanism. When the multipurpose integral cross joint is used for carrying out different operations, no cross joints need to be changed, and the operations of drilling wells, testing oil and finishing wells can be finished by hanging different operation equipment hangers in the multipurpose integral cross joint in a seat manner according to different operations. The multipurpose integral cross joint has the advantages of convenient in operation, time and labor saving, reliability in sealing, convenience in use and time, trouble, labor and labor saving, and the manpower, the material resource and operation conversion time in the well drilling process can be greatly shortened. More importantly, the safety of well mouth operation is improved, the potential safety hazard of the well mouth operation is eliminated, and the multipurpose integral cross joint is an important technical revolution in the well drilling history.

Description

technical field [0001] The invention relates to the field of four-way, in particular to a multi-purpose integrated four-way used for drilling, oil testing and oil production. Background technique [0002] In the conversion process of traditional drilling, oil testing and well completion operations, since the main channel of the drilling spool is a straight-through channel, it does not have the function of hanging other operating equipment. Therefore, different operating processes require different drilling spools, test When oiling wellhead equipment and completion wellhead equipment, in the process of mutual operation conversion, it is necessary to disassemble and assemble different operating equipment multiple times and replace the cross that matches the operating equipment. For example, when the drilling reaches a certain depth, when it is necessary to test the relevant data of the oil layer, since the drilling spool does not have the function of installing related monitor...

AI Technical Summary

Problems solved by technology

The above-mentioned traditional method has complicated procedures, and each reinstallation requires a lot of manpower and material resources. More importantly, during the equipment reinstallation, the wellhead is always open, and the operation risk is high, especially for some oil wells with special geological conditions. Accidents such as overflow and blowout are prone to occur, so the work efficiency is extremely low and the operation risk is high

In addition, in the process of wellhead operation, it is necessary to perform leak detection on the four-way body and the equipment connected to the four-way. At this time, it is necessary to put a pressure test plug in the four-way body, and then fill water for testing. The traditional leak test, Generally, the pressure test plug is placed between the side outlet of the four-way body and the top of the four-way body. This structure can only test whether there is leakage in the equipment above the side outlet of the four-way body, but cannot test whether there is leakage at the side outlet. Therefore Once the side outlet leaks, it cannot be detected, which becomes a major hidden danger in the wellhead operation process

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