Offshore oil gas field exploiting system

A technology for oil and gas exploitation and oil and gas fields, which is applied in the direction of exploitation fluid, earthwork drilling and production, wellbore/well components, etc. It can solve the safety hazards of platform oil and gas processing equipment and operators, occupying platform area and carrying weight, and berthing of export oil tankers Platform difficulties and other issues, to reduce the possibility of potential safety hazards, increase the amount of stored crude oil and gas, and reduce reserves

Inactive Publication Date: 2014-07-30
CHINA NAT OFFSHORE OIL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The common way to store oil and gas is to install crude oil storage tanks on the platform. The installation of crude oil storage tanks on the platform has the following problems: 1) Occupying a large area of ​​the platform and carrying weight, increasing platform investment; 2) Crude oil storage tanks are expensive for the platform. A great source of danger, because oil and gas are flammable and explosive materials, if a fire or explosion occurs, it will cause great danger to the safety of oil and gas processing equipment and operators on the platform; Oil tankers will also cause fatal consequences; 3) When carrying out crude oil export operations in bad weather, it is very difficult for the export oil tanker to berth on the platform, and the probability of collision between the export oil tanker and the platform increases

Method used

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  • Offshore oil gas field exploiting system
  • Offshore oil gas field exploiting system

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Embodiment 1

[0017] Such as figure 1 As shown, the offshore oil and gas field production system provided in this embodiment includes a jacket 1 whose bottom end is fastened to the seabed, and the top of the jacket 1 is fastened to a fixed platform 2, on which a Christmas tree and crude oil processing are arranged. The equipment 3, the output end of the Christmas tree and the crude oil processing equipment 3 are connected to one end of the pipeline 5 on the seabed through a standpipe 4, and the other end of the pipeline 5 is connected to the inlet of the crude oil storage tank 6 on the seabed, and the crude oil storage tank 6 The outlet communicates with a crude oil export buoy 8 floating on the sea level through a pipeline 7 .

Embodiment 2

[0019] Such as figure 2 As shown, the offshore oil and gas field production system provided in this embodiment includes a crude oil production equipment 9 located on the seabed, a floating platform 10 arranged on the sea level above the crude oil production equipment 9, and a crude oil processing equipment 11 is arranged on the floating platform 10 , the crude oil extraction equipment 9 and the crude oil processing equipment 11 are communicated through a standpipe 12, and the output end of the crude oil processing equipment 11 is connected to the entrance of a crude oil storage tank 14 located on the seabed through a riser 13, and the outlet of the crude oil storage tank 14 is connected through a The pipeline 15 communicates with a crude oil export buoy 16 floating on the sea level.

[0020] In the above-mentioned embodiment, the crude oil extraction equipment 9 includes several christmas trees 90 firmly connected on the seabed, and the oil and gas outlets of each christmas t...

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Abstract

The invention relates to an offshore oil gas field exploiting system which is characterized by comprising a crude oil storage tank arranged on a seabed, wherein the inlet of the crude oil storage tank is communicated with an oil gas exploiting device by virtue of an oil delivery pipe; the outlet of the crude oil storage tank is communicated with a crude oil output float bowl which floats on the sea surface. According to the offshore oil gas field exploiting system, the crude oil storage tank is transferred to the seabed from a platform, so that the area, volume and load bearing of the platform are greatly reduced, meanwhile various problems brought by the overlarge volume and load bearing are also solved, and the crude oil gas storage amount is also greatly improved; in addition, the crude oil storage tank is positioned in water, so that the occurrence possibility of potential safety hazards such as fire hazards is greatly reduced, furthermore equipment such as fire fighting devices can be omitted, and the whole system is simpler and more reliable.

Description

technical field [0001] The invention relates to the field of oil and gas field exploitation, in particular to an offshore oil and gas field exploitation system. Background technique [0002] There are many difficulties in the exploitation of offshore oil and gas fields compared with traditional land oil and gas fields. At present, the following two methods are generally used for the exploitation of offshore oil and gas fields: The first method is to support a fixed platform by a jacket fastened to the seabed. This type of Christmas tree is located on a fixed platform, and the oil and gas produced are first transported to the oil and gas processing equipment set on the fixed platform through the standpipe for processing, and then the processed oil and gas are transported through oil pipelines or tankers shuttling at sea. Export, this method is generally applicable to shallow waters. The second way is to use the combination of floating platform and subsea tree. The oil and ...

Claims

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Application Information

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IPC IPC(8): E21B43/01
Inventor刘太元李清平郭宏杨壮春林影炼胡茂宏郑利军闫嘉钰鞠朋朋杨洪庆
OwnerCHINA NAT OFFSHORE OIL CORP