Offshore Oilfield Natural Gas Compression Processing Jack-up Platform

Abstract

The invention provides a self-elevating platform for natural gas compression processing in offshore oilfields, which includes a main hull, pile legs, a lifting device, a natural gas compression processing device, a connecting corridor bridge and lifting equipment; the main hull is a square box structure; the pile legs It is installed vertically on the main hull, and the fixed position of the legs and the main hull can be adjusted along the height direction of the legs so that the main hull can be raised and lowered; the number of legs is four, and they are respectively arranged at the bow and stern of the main hull on the left and right sides , in a rectangular distribution; the lifting device is arranged on the main hull and corresponds to the legs one by one, so as to cooperate with the legs to realize the lifting of the main hull; the natural gas compression processing device is arranged in the middle of the main deck of the main hull to The associated natural gas in the oil field is compressed; connected to the corridor bridge, it is arranged on the main hull; the number of lifting equipment is at least one, and it is installed on the main hull. The invention satisfies the design, construction and implementation requirements of offshore oil and gas production and processing equipment through the organic combination of various parts.

Description

technical field [0001] The invention belongs to the technical field of marine engineering construction, and relates to oil and gas production and processing equipment for marine engineering. More specifically, the invention relates to a self-elevating platform for natural gas compression processing in offshore oil fields. Background technique [0002] With the worldwide energy shortage and the depletion of land oil resources, the exploration, development and utilization of offshore oil and gas resources have been developing rapidly in recent years, resulting in strong demand for offshore engineering, especially as oil and gas development gradually moves from shallows to deep seas, A variety of oil and gas production and processing equipment such as jack-up platform systems, multi-functional semi-submersible offshore platforms, tanker floating production systems and other offshore products are sought after by major shipyards around the world, and the competition is fierce. ...

AI Technical Summary

Problems solved by technology

[0006] However, whether it is a three-leg truss structure, a rack and pinion lifting system, or a method of setting a torch arm on the triangular main deck to burn off the associated gas, its shortcomings are obvious: the first disadvantage is the triangular main deck itself At the same time, the superstructure and various equipment occupy too much valuable open deck storage area and work space, which makes the already narrow main deck space more crowded. The layout and structural design are also not convenient for the construction and installation of the operator and the repair and maintenance of the crew after delivery; the second disadvantage is that the variable load is small, and the variable load mainly includes fuel oil, fresh water, ballast water and cranes used for platform work. Weight, etc., it is the numerical difference between the maximum operating weight and the light ship weight, since there are only three legs to bear the platform working weight, so for the same light ship weight, the difference (variable load) is small, and then Reduce the self-sustaining force of the platform; the third disadvantage is that the material cost and processing and construction cost of the rack and pinion are relatively high. If the rack and pinion drive is used for lifting, not only need to configure huge and complicated speed change and lifting equipment on the main hull, It is large in size and heavy in weight. At the same time, high-yield-strength alloy steel plates are used to process half-chords and gear racks. It also needs to go through processes such as cutting, heating and pressing, quenching, high-temperature tempering, and shaping. The process is complicated; four disadvantages It is not conducive to the control of the center of gravity of the platform. For the self-elevating platform with three legs, in the lifting and working state, the three legs and the lifting device respectively bear the full weight of the platform. If the direction deviates from the geometric center, the three legs will be affected by unbalanced forces, which is contrary to improving the working performance of the platform. The performance will be greatly reduced; the fifth disadvantage is that the disposal method of using the torch combustion arm to empty and burn natural gas will increase the risk of explosion and directly discharge residues to the atmosphere. There are also problems of wasting energy and polluting the marine and atmospheric environment, which is not conducive to The protection of human living environment; the sixth disadvantage is that if the water produced by conventional oil wells is used for reinjection, the water needs to be treated and chemical agents can be added to meet the specified technical requirements, and the processing process is complicated, resulting in pollution and corrosion

Images