High-performance ultra-deep water non-bonded pipe joint

Abstract

The present invention discloses a high-performance ultra-deep water non-bonded pipe joint which comprises a tubular joint body. The head end of the tubular joint body is provided with a joint body flange, the outer wall of the middle section of the tubular joint body is provided with a first annular connecting part, the outer wall of the rear section of the tubular joint body is provided with a second annular connecting part extending to the tail end of the tubular joint body, the inner cavity wall of the rear section of the tubular joint body is sequentially provided with a first cylinder ring groove, a first conical ring groove and a second cylinder ring groove along the axis of the tubular joint body, the two sides of the first cylinder ring groove are communicated with the tail end ofthe tubular joint body and the large end of the first conical ring groove respectively, the small end of the first conical ring groove is communicated with the second cylinder ring groove, the lower end of the side wall of the second cylinder ring groove close to the head end of the tubular joint body is provided with an annular connecting strip, and the annular connecting strip is provided with aCARCASS layer fixing ring. Compared with the prior art, the high-performance ultra-deep water non-bonded pipe joint is improved in connection strength, sealing property and stability, so that the high-performance ultra-deep water non-bonded pipe joint is more suitable for ultra-deep water pipes.

Description

technical field [0001] The invention relates to a high-performance ultra-deep water non-adhesive pipeline joint. Background technique [0002] With the rapid development of my country's economy, the demand for energy is increasing, and the contradiction between energy supply and demand is becoming increasingly prominent. In order to alleviate the contradiction between energy supply and demand, accelerating the development of offshore oil and gas resources has become a national strategic demand. The National "Twelfth Five-Year" Science and Technology Development Plan clearly states that the development of high-end marine engineering equipment is required. Marine pipelines are the most critical transportation equipment for marine oil and gas resources and the "lifeline" related to the development of marine resources. With the country's development of deep-sea resources, the traditional marine engineering equipment in the past has gradually fallen behind and been eliminated, an...

AI Technical Summary

Problems solved by technology

With the development of the country's deep sea resources, more and more pipelines such as oil and gas transmission have been laid on the seabed in ultra-deep water, but as the depth of the laying water increases, the quality of the pipeline increases, and both gravity and inertia The tensile force on the end joints is increasing, and it is urgent to design high-strength tensile joints, and the continuous shaking of the pipeline in seawater can easily loosen the joints, resulting in seal failure, leakage, economic loss and environmental damage

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