Production test wellhead platform for complex oil reservoirs

Abstract

The invention discloses a pilot production wellhead platform. The pilot production wellhead platform comprises a topside module, a plurality of platform leg pillars, and a plurality of steel pile foundations, wherein the quantity of the platform leg pillars and the quantity of the steel pile foundations are equal, the topside module comprises a main deck, a production deck and a well drilling deck which are sequentially arranged from the bottom to top; the upper ends of the platform leg pillars are connected with the main deck, the steel pile foundations penetrate through the platform leg pillars and extend out of the platform leg pillars, Christmas trees are arranged on the production deck, and the Christmas trees are connected with drill conductors; after penetrating through the main deck, thedrill conductors extend downwards continuously; a living building and a helicopter deck are arranged on the right side of the well drilling deck, and the helicopter deck is arranged at the top of the living building; a passage and a slide track used for the sliding of a drilling machine or a workover rig are reserved on the left side of the well drilling deck. According to the pilot production wellhead platform, complex oil pools with less development experience can be exploited efficiently and quickly by usingless engineering investment cost, and a relatively large adjustment scopeis provided in the process of exploiting; meanwhile, the oil field development risk of the complex oil pools can be controlled effectively, so that the pilot production wellhead platform has a wide application prospect in development of such oil fields.

Description

technical field [0001] The invention relates to a production test wellhead platform aimed at complex oil reservoirs. Background technique [0002] As the discovery of large-scale integrated oil fields in the sea is decreasing, the difficulty of exploration in China's sea areas is increasing. When faced with relatively large and complex oil reservoirs, it is often difficult to accurately determine the specific oil reserves, so traditional large and medium-sized wellheads with large investment are rashly used. For oil and gas development on the platform, because the upper part of the platform has complete functions, the cost of equipment is very high, and offshore installation requires the use of large-scale construction equipment, which is expensive, will face greater economic risks, and the rate of return on capital is difficult to guarantee. A new type of test production wellhead platform replaces the large wellhead platform, completes the test production of complex oil res...

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Problems solved by technology

[0002] As the discovery of large-scale integrated oil fields in the sea is decreasing, the difficulty of exploration in China's sea areas is increasing. When faced with relatively large and complex oil reservoirs, it is often difficult to accurately determine the specific oil reserves, so traditional large and medium-sized wellheads with large investment are rashly used. Oil and gas development on the platform, because the upper part of the platform has complete functions, the cost of equipment is very high, and offshore installation requires the use of large construction equipment, which is expensive, will face greater economic risks, and the rate of return on capital is difficult to guarantee

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