Deep water horizontal connector pressure cap

Abstract

The invention provides a pressure cap of a deep-water horizontal connector, which includes a sealing mechanism, a drawing mechanism, and a feeding mechanism. The invention proposes a double locking mechanism of a spring and a stuffing, and the double locking includes a spring locking and a stuffing lock It solves the self-locking problem of the pressure cap under water; a double-layer sealing mechanism is proposed to pressurize the sealed cavity formed between the two, which avoids the problem of large pressurized space in the pipeline, and can easily complete the water The lower seal test; the hydraulic cylinder is designed to pull the inner layer closer to the position without retracting, and continues to provide tension for the inner layer to form a fixed constraint; the outer layer is pushed forward with the inner layer as the base, so that the block is in place and locked The lower flange; adopting a purely mechanical structure improves the reliability of the horizontal pressure cap for long-term underwater work; optimizes the counterweight and guiding position, and solves the overturning problem during the installation of the horizontal pressure cap; proposes an integrated design of machinery and tools The scheme improves the efficiency of underwater installation.

Description

technical field [0001] The invention relates to a sealing and anti-loosening structure, in particular to a deep-water horizontal connector pressure cap. Background technique [0002] Since human beings entered the industrial society, the demand for energy represented by oil has been continuously increasing. However, as a non-renewable resource, with continuous consumption, the limited oil resources on land can no longer meet the growing needs of human beings. Therefore, the exploration and development of offshore oil and gas resources has become the focus and focus of industrial countries in the world. [0003] The exploration and development of offshore oil and gas resources mainly adopts the underwater production system, which mainly includes: subsea oil wells, Christmas trees, connectors, jumpers, manifolds and risers. The construction of the subsea production system has such a process: after the completion of drilling, logging and all the test work, the wellhead of the...

AI Technical Summary

Problems solved by technology

[0007] The main purpose of the present invention is to fill in the gaps in the prior art, and provide a deep-water horizontal connector pressure cap, thereby protecting the deep-water horizontal connector, overcoming the difficulties of underwater installation and limited operating space; the spring and The double-locking mechanism of the stuffing, the double-locking includes the spring locking and the packing locking, which solves the self-locking problem of the pressure cap under water; a double-layer sealing mechanism is proposed, and the sealing cavity formed between the two is added. pressure, avoiding the problem of large pressurized space in the pipeline, and can easily complete the underwater sealing test; the hydraulic cylinder is designed to pull the inner layer in place without retracting, and continues to provide tension for the inner layer to form a fixed constraint ;The outer layer uses the inner layer as the base to push the block in place and lock the lower flange; the purely mechanical structure improves the reliability of the horizontal pressure cap for long-term underwater work; the counterweight and guiding position are optimized to solve the problem of The overturning problem in the installation process of the horizontal pressure cap was solved; the integrated design scheme of the machine was proposed to improve the efficiency of the underwater installation

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