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Self-install oil production platform and installation method thereof

An oil production platform and an installation method technology, applied in water conservancy projects, artificial islands, underwater structures, etc., can solve the problems of high installation costs, large investment, and affecting the progress of project installation, so as to reduce construction costs, improve rigidity and resistance The effect of wave power

Inactive Publication Date: 2016-09-21
CHINA NAT OFFSHORE OIL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing offshore oil and gas field development mainly uses the jacket platform, and the installation of the jacket platform needs to use floating crane resources to complete, so the installation cost is relatively high, especially in the case of numerous offshore projects, it is difficult to obtain floating crane resources for the jacket platform Locked, affecting the installation progress of the project
The platform blocks in this way not only need to wait for the jacket to be installed before they can be installed, but also the connection and debugging between each platform block takes a long time
At the same time, since the jacket platform cannot be moved after installation, the jacket platform becomes a one-time investment device and cannot be used for secondary use. Moreover, after the oil production work in the offshore oil and gas field is completed, it needs to be completed by using floating crane resources again. Abandonment of the jacket platform, resulting in high oilfield development costs
Marginal oil fields with short economic life are often difficult to develop and utilize due to large investment and low efficiency

Method used

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  • Self-install oil production platform and installation method thereof
  • Self-install oil production platform and installation method thereof
  • Self-install oil production platform and installation method thereof

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Embodiment Construction

[0020] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0021] Such as figure 1 , figure 2 , image 3 As shown, the device of the present invention includes a platform 1 floating on the sea surface, and a plurality of liftable legs 2 inserted in the seabed are arranged at the bottom of the platform 1 . On one side of the platform 1, there is a wellhead area 3 that extends outwards so that the drilling ship can drill wells in place. A plurality of wellheads 31 are opened on the wellhead area 3, and a water-proof jacket is arranged in each wellhead 31. Pipes 4 form a Christmas tree, and one end of each water-resistant casing 4 communicates with the wellhead 31, and the other end is vertically inserted on the seabed. Each water-resisting casing 4 also runs through the underwater base plate 5 arranged on the bottom surface of the seabed. The underwater base plate 5 and the wellhead area 3 are positioned up...

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Abstract

The invention provides a self-install oil production platform and an installation method thereof. The self-install oil production platform comprises a platform floating on the sea. A plurality of liftable pile legs which are inserted into the seabed are arranged at the bottom of the platform. A wellhead area is fixedly connected with one side of the platform. A plurality of wellheads are formed in the wellhead area. A drill conductor is inserted into each wellhead. One end of each drill conductor communicates with the corresponding wellhead. The other end of each drill conductor is vertically inserted into the seabed. All the drill conductors jointly penetrate through an underwater base plate which is arranged on the bottom face of the seabed and used for stabilizing all the drill conductors. The position of the underwater base plate corresponds to the position of the wellhead area. A plurality of grouting sleeves are arranged on the underwater base plate. The drill conductors are inserted into the grouting sleeves correspondingly. Due to the facts that the wellhead area is fixed through the multiple drill conductors penetrating through the underwater base plate, and the grouting sleeves are arranged on the underwater base plate so that the drill conductors and the underwater base plate can be fixed into a whole, full self-installation of the wellhead area is achieved, no protecting frame or floating crane resource is needed, a protecting frame is formed by the underwater base plate and the drill conductors, and the construction cost is reduced.

Description

technical field [0001] The invention relates to a self-installation oil production platform and an installation method thereof, belonging to the field of offshore oil production equipment. Background technique [0002] The existing offshore oil and gas field development mainly uses the jacket platform, and the installation of the jacket platform needs to use floating crane resources to complete, so the installation cost is relatively high, especially in the case of numerous offshore projects, it is difficult to obtain floating crane resources for the jacket platform Locked, affecting the installation progress of the project. The platform blocks in this way not only need to wait for the jacket to be installed before they can be installed, but also it takes a long time to connect and debug the various platform blocks. At the same time, since the jacket platform cannot be moved after installation, the jacket platform becomes a one-time investment device and cannot be used for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B17/00E02B17/02
CPCE02B17/00E02B17/0008E02B17/02E02B2017/0056
Inventor 陈邦敏贾旭王忠畅梁文洲李达蒋曙鸿李刚范模杨思明刘国锋张宝钧邵卫东苏云龙付殿福
Owner CHINA NAT OFFSHORE OIL CORP
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