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Asymmetric type on-line installing device and method for underwater three-stage separation system

A technology of three-stage separation and installation device, applied in the field of marine engineering

Active Publication Date: 2017-05-10
QINGDAO TECHNOLOGICAL UNIVERSITY
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Problems solved by technology

[0005] In order to effectively solve the installation problem of the underwater separation system and overcome the defects and deficiencies existing in the existing shallow sea installation technology and operation mode, the purpose of the present invention is to provide an asymmetrical separation system suitable for the installation of the underwater three-stage separation system for the development of deep water oil and gas fields. Online installation device and installation method thereof

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  • Asymmetric type on-line installing device and method for underwater three-stage separation system
  • Asymmetric type on-line installing device and method for underwater three-stage separation system
  • Asymmetric type on-line installing device and method for underwater three-stage separation system

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Embodiment Construction

[0044] exist figure 1 Among them, the asymmetric online installation device of the underwater three-stage separation system is mainly composed of hoisting rigging 1, air cell body 2, balance pipe 3, connecting rigging 4, hoisting base 6, capture cylinder 7 and traction pipe 8, and its asymmetric The on-line installation method is to carry out the whole set of operation process of underwater manifold measurement and positioning operation, separation system hoisting operation, asymmetric centering operation, air cell balance pipe recovery operation and separation system docking operation in sequence, thus completing the underwater three In-line quick installation of stage separator 5.

[0045] exist figure 1Among them, before the assembly of the asymmetric online installation device, the outer surfaces of the main parts of the hoisting rigging 1 and the connecting rigging 4 are respectively coated with grease to prevent seawater corrosion, and the outer surfaces of the main par...

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Abstract

The invention provides an asymmetric type on-line installing device and method for an underwater three-stage separation system. The asymmetric type on-line installing device and method are applied to rapid abutting joint and on-line installing of the underwater separation system. Gas cell bodies of the on-line installing device are designed as double asymmetric type gas cells, follow-up drifting is completed through spherical offset adjusting mechanisms and horizontal offset of the on-line installing device is adjusted automatically; and according to the balance action of the gas cell bodies and a balance pipe, vertical offset is adjusted automatically, so that stable hoisting is realized. Three-point type hoisting, prying, centering and supporting of an underwater three-stage separation device are completed through connecting rigging, an upper hoisting base and a lower hoisting base. Three-set fishing cylinders and traction pipes are arranged on the hoisting base in a three-point mode to form three-cylinder automatic centering mechanisms. The fishing cylinders are matched with the traction pipes to realize hoisting and automatic centering in centering operation. Locking mechanisms are arranged in the fishing cylinders to realize automatic locking in the centering operation. The asymmetric type on-line installing method comprises the step of conducting the whole set of the operation process relying on the installing device, so that rapid on-line installing of the underwater separation system is finished.

Description

technical field [0001] The invention relates to a device and method for installing an underwater separation system in the field of marine engineering, in particular to an asymmetric online installation device dedicated to an underwater three-stage separation system and its installation process. Background technique [0002] The production mode of subsea production system plus floating platform has become one of the most important modes of deep sea oil and gas development. The subsea production system generally consists of subsea wellheads, Christmas trees, production / separation equipment, jumper pipes, subsea pipelines, etc. Composition of production equipment, the use of underwater separation equipment can move the crude oil and production sewage treatment equipment from the offshore platform block to the underwater system, which greatly simplifies the crude oil and production sewage treatment process, and effectively solves the problem of large footprint and weight of conve...

Claims

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Application Information

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IPC IPC(8): E21B43/36E21B43/01E21B43/013B66C1/12B66C13/08
CPCE21B43/01E21B43/0135E21B43/36B66C1/12B66C13/08
Inventor 刘新福杨勇刘春花张守森王德祥陈风官
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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