Supersized wellhead platform

Abstract

The invention discloses a supersized wellhead platform, which comprises an upper module, a jacket and a plurality of steel pile foundations, wherein the upper end part of the jacket is connected with the upper module; the steel pile foundations penetrate through pile legs of the jacket; the upper module comprises an upper-layer deck, a lower-layer deck and a working deck, which are sequentially arranged from top to bottom; two well slot areas are arranged at an interval on the upper-layer deck. The wellhead platform also comprises a drilling module, an oil production module and an oil and gas metering module. According to the wellhead platform, large-sized oilfields with water depths of 10 to 40m and more than 50 well slots can be efficiently and rapidly developed with low construction investment cost by one wellhead platform; the project investment is greatly saved under the condition of ensuring the construction progress and safety, the well drilling and completion progress is accelerated to put the oilfield into operation as soon as possible, and the project benefits are remarkably improved; the wellhead platform has broad application prospect in the development of such oilfields.

Description

technical field [0001] The invention relates to a wellhead platform, in particular to an ultra-large wellhead platform, and belongs to the technical field of marine engineering. Background technique [0002] With the deepening of exploration and development of offshore oil and gas fields, water injection development has become a conventional offshore oil field development model. Oilfields need to set up production wells (oil production wells) and water injection wells, and some oilfields also need to set up water source wells to obtain formation water to supplement water injection. In addition, for complex fault-block oil fields, denser well patterns are often used to achieve higher recovery ratios. In this way, more and more large-scale oilfield development adopts multi-well design. Usually, when an oil field requires more than 50 well slots, two wellhead platforms need to be set up, resulting in a substantial increase in project investment. A super-large wellhead platfo...

AI Technical Summary

Problems solved by technology

Usually, when an oil field requires more than 50 well slots, it is necessary to set up two wellhead platforms, resulting in a substantial increase in project investment

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