Lifting four-way part for deep sea oil field wellhead device

Abstract

The invention discloses a lifting four-way part for a deep sea oil field wellhead device, which is characterized by comprising a cable blind plug (1), a lifting four-way body (2), an electric pump oil pipe head name plate (3), a manual cock plug (4), a backing ring (5), a welding neck flange (6), an oil pipe hanger assembly (7), a jackscrew assembly (8), a double-end bolt (9), a nut (10), a V-shaped sealing backing ring (11), a screw thread flange (12), a diaphragm-type double-scale oil-resistant anti-vibration pressure gauge (13), a right angle type stop valve (14), a joint (15), a double-end bolt (16), a nut (17), a planting bolt (18), a grease injection valve (19), a pressure testing hole name plate (20), a plug (21), a cable sealing assembly (22) and a name plate rivet (B1), wherein the oil pipe hanger assembly (7) is arranged in an inner cavity at the upper part of the lifting four-way body (2).

Description

technical field [0001] The invention provides a spool, in particular to a raised spool of a deep sea oilfield wellhead device. Background technique [0002] my country's petroleum drilling and production equipment manufacturing enterprises have accumulated rich experience in the development of land equipment for decades, which has laid a foundation for the design and manufacture of offshore oil and water equipment, and has realized the localization of some equipment. However, at present, the localization and use of some offshore oil drilling and production equipment in China is only suitable for shallow waters above 300 meters. For deep seas above 2,000 meters, my country's deep-sea oilfield drilling and production equipment technology is compared with Western developed countries. There is still a large gap, especially in the South China Sea, where there are huge reserves of oil and gas resources, key equipment for drilling and production equipment still needs to be imported....

AI Technical Summary

Problems solved by technology

The gap between my country's offshore oil equipment and the developed countries in the world is mainly in the following aspects: 1. The state's efforts to explore and develop offshore oil were further intensified in the "Eleventh Five-Year Plan" and started late; The research on petroleum equipment has just started and is basically in the stage of learning and understanding; 3. Insufficient investment in research and development, lack of senior talents; 4. Lack of support for research and development, and slow research progress; 5. my country's basic industries are poor, especially materials and processing technology Research lags behind

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