Shallow water cluster well mouth skid-mounted production system

A production system, cluster well technology, applied in wellbore/well valve devices, wellbore/well components, sealing/packing, etc., can solve problems such as investment waste

Pending Publication Date: 2021-02-26
CNOOC ENERGY TECH & SERVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the oilfield group area with a water depth less than 200m, if the "deep water development mode" is also used for the design of the underwater control system, it will inevitably lead to waste of investment

Method used

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  • Shallow water cluster well mouth skid-mounted production system
  • Shallow water cluster well mouth skid-mounted production system
  • Shallow water cluster well mouth skid-mounted production system

Examples

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Embodiment Construction

[0019] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0020] like figure 1 and figure 2 As shown, a shallow-water cluster wellhead skid-mounted production system includes a bottom skid 1, and the bottom skid 1 is installed on the seabed mud surface of the cluster wellhead through a suction pile, and the bottom skid 1 is installed at the wellhead of the oil field There is a permanent guide base plate, and the base skid 1 is fixedly provided with a guide column 5 around the permanent guide base plate, and the base skid 1 is guided by the guide column 5 to be provided with a Christmas tree 6 fixedly connected with the permanent guide base plate, and one side of the bottom skid 1 is provided with There is a subsea distribution unit assembly 2 composed of a hydraulic distribution box, an electric distribution box, and a control distribution box. The subsea distribution unit assembly 2 connects the lines to each ...

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Abstract

The invention discloses a shallow water cluster well mouth skid-mounted production system. The shallow water cluster well mouth skid-mounted production system comprises bottom skids, permanent guide base discs are installed at the positions, at an oil field well mouth, of the bottom skids, the bottom skids are provided with Christmas trees fixedly connected with the permanent guide base discs through guide columns in a guiding mode, an underwater distribution unit assembly composed of a hydraulic distribution box, a power distribution box and a control distribution box is arranged on one sideof the bottom skid; and collecting pipes and output pipes are arranged at the side ends of the Christmas trees, the collecting pipes are in communication with the Christmas trees through branch Christmas pipes, the collecting pipes are in communication with the output pipes through conveying pipes, the output pipes and the collecting pipes between the adjacent Christmas trees are fixed through connecting flanges, gate valves are arranged on the conveying pipes, and gate valves are arranged at the output end of the collecting pipes; and an output interface is arranged at a port at the tail endsof the output pipes. The cluster well mouth skid-mounted production system is suitable for oil field group exploitation in a shallow water sea area, low in cost and convenient to manage in a unifiedmode.

Description

technical field [0001] The invention relates to the technical field of marine shallow water production systems, in particular to a skid-mounted production system for shallow water cluster wells. Background technique [0002] Since the late 1980s, the exploration and development of deep-sea oil and gas resources has accelerated. The international definition of deep water is 200-1500m. The geographical location is special, or it is located in a sensitive area, or it is far away from the surrounding supporting facilities. For oilfield group areas with a water depth of less than 200m, if the "deepwater development model" is also used for the design of the underwater control system, it will inevitably result in waste of investment. With the maturity of domestic cluster well drilling technology, cluster horizontal well technology has the advantages of less investment, quick results, and convenient unified management. It is widely used especially on offshore platforms and is an ef...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B33/035E21B33/038E21B34/04
CPCE21B33/035E21B33/038E21B33/0385E21B34/04
Inventor 邓欣于超赵宁卫赵会军余捷刘雷宇孙冰姚志义吕小燕
Owner CNOOC ENERGY TECH & SERVICES
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