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Offshore platform technology system and method for lowering exporting crude oilCO2 partial pressure

A process system and offshore platform technology, applied in the field of offshore platform process systems, can solve the problems of affecting project benefits, high partial pressure, and ordinary carbon steel pipes cannot be used as the material of sea pipes, etc., and achieve the effect of reducing investment

Pending Publication Date: 2019-06-11
CHINA NAT OFFSHORE OIL CORP +1
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Problems solved by technology

For high CO 2 Crude oil generally enters the offshore pipeline after being processed in a unified process on the platform. Due to CO 2 Due to the high partial pressure, ordinary carbon steel pipes cannot be used as the material of the sea pipes, and carbon steel-lined corrosion-resistant alloy pipes are required. Substantial increase in investment in sea pipes affects project benefits

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  • Offshore platform technology system and method for lowering exporting crude oilCO2 partial pressure

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Embodiment Construction

[0026] The experimental methods used in the following examples are conventional methods unless otherwise specified.

[0027] The materials and reagents used in the following examples can be obtained from commercial sources unless otherwise specified.

[0028] The present invention will be further described below in conjunction with the accompanying drawings, but the present invention is not limited to the following embodiments.

[0029] Such as figure 1 As shown, the offshore platform process treatment system and method of the present invention, the main equipment includes high CO content 2 Crude oil production manifold 10, high CO content 2 Crude oil production separator 20, low CO content 2 Crude oil production manifold 30, low CO content 2 Crude oil production separator 40, crude oil export pump 50 and pigging ball launcher 60, high CO content 2 and low CO 2 The inlet and outlet pipelines of the production separator are all equipped with shut-off valves. The system can...

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Abstract

The invention discloses an offshore platform technology system and method for lowering exporting crude oil CO2 partial pressure. The offshore platform technology system comprises a high CO2 crude oilproduction manifold, a high CO2 crude oil production separator connected with the high CO2 crude oil production manifold, one or more sets of connected low CO2 crude oil production manifolds, low CO2crude oil production separators and a crude oil exporting pump. An oil phase outlet of the high CO2 crude oil production separator is successively connected with inlets of all low CO2 crude oil production separators through pipelines, and the pipelines of the oil phase outlet of the last-connected low CO2 crude oil production separator is provided with the crude oil exporting pump. The high CO2 oil phrase is separated from high CO2 production well crude oil through the high CO2 crude oil production separator, and low CO2 production well crude oil enters the low CO2 crude oil production separators so that the oil phase can be separated, oil phase CO2 partial pressure is suitable for a carbon steel material exporting marine pipe, and exporting is achieved through the exporting marine pipe ofthe crude oil exporting pump. According to the offshore platform technology system and method for the lowering exporting crude oil CO2 partial pressure, the CO2 partial pressure of the high CO2 crudeoil can be decreased, and thus the CO2 partial pressure is suitable for the exporting marine pipe made from the carbon steel material.

Description

technical field [0001] The invention relates to a method for reducing the CO of exported crude oil 2 Offshore platform process system and method for partial pressure. Background technique [0002] In the development of offshore oil and gas fields, more and more associated gas of oil and gas fields contain high concentrations of CO 2 , resulting in the CO in the exported crude oil 2 High content, CO 2 The partial pressure is high, which puts forward high requirements for the material selection of the external sea pipeline. For high CO 2 Crude oil generally enters the offshore pipeline after being processed in a unified process on the platform. Due to CO 2 Due to the high partial pressure, ordinary carbon steel pipes cannot be used as the material of the sea pipes, and carbon steel-lined corrosion-resistant alloy pipes need to be used. The investment in sea pipes has increased significantly, which affects project benefits. Under the situation that the international oil p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17D3/01F17D1/14
Inventor 衣华磊郝蕴郭欣刘梦诗刘云黄喆高鹏王春升王忠畅刘人玮
Owner CHINA NAT OFFSHORE OIL CORP
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