Unattended offshore platform remote control replacement device and method
A remote control, offshore platform technology, applied in pipeline laying and maintenance, mechanical equipment, pipes/pipe joints/fittings, etc., can solve problems such as condensation and blockage
Active Publication Date: 2021-03-16
CHINA NAT OFFSHORE OIL CORP +1
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Problems solved by technology
However, due to the high freezing point of crude oil in some oilfields, there may be a certain risk of condensation and plugging if replacement fails after production is shut down
Method used
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[0018] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0019] Such as figure 1 As shown, the present invention provides a remote control replacement device for an unmanned offshore platform, which includes: a first replacement process pipeline 1, a second replacement process pipeline 2, a main replacement process pipeline 3 and a submarine pipeline. Wherein, the inlet of the first replacement process pipeline 1 is connected to the outlet of the seawater lift pump 4, and a pressure regulating valve 5 is arranged between the outlet of the seawater lift pump 4 and the inlet of the first replacement process pipeline 1, for controlling the displacement required. The amount and pressure of seawater, and the excess seawater is discharged into the sea; the downstream of the pressure regulating valve 5 is sequentially provided with several branch pipelines 6 of the first displacement process, several branch pipeli...
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The invention relates to an unattended offshore platform remote control replacement device and method. The unattended offshore platform remote control replacement device comprises a first replacementflow pipeline, a second replacement flow pipeline, a replacement flow main pipeline and a submarine pipeline, wherein the inlet of the first replacement flow pipeline is connected with the outlet of aseawater lifting pump, a plurality of first replacement flow branch pipelines connected in parallel are arranged at the downstream of a pressure regulating valve and are connected with the inlet of aseparator after passing through a production manifold, the outlet of the separator is connected with the second replacement flow branch pipelines connected in parallel through an SDV valve, each of the second replacement flow branch pipelines is connected with the replacement flow main pipeline through a third replacement flow branch pipeline, the inlet of the second replacement flow pipeline isconnected with the outlet of a diesel fire pump, the downstream of the second replacement flow pipeline is connected with the replacement flow main pipeline through a flow switching valve, the other end of the replacement flow main pipeline is respectively connected with a pitching barrel and the submarine pipeline, and the seawater lifting pump, a pressure regulating valve, the SDV valve, the diesel fire pump and the pressure regulating valve are all connected with a control system and are remotely controlled by the control system. The method can be widely applied to the field of unmanned offshore platform replacement.
Description
technical field [0001] The present invention relates to a remote control replacement device and method, in particular to a remote control replacement device and method for an unmanned offshore platform. Background technique [0002] Through the automation and digital upgrade of offshore platforms, the unmanned remote monitoring operation of offshore platforms can be realized, which can greatly reduce the operating costs and production costs of offshore oil fields. In addition, typhoons are relatively frequent in the South China Sea. Offshore oil fields immediately mobilized to avoid typhoons and shut down platform production after receiving notices of avoiding typhoons; 24 hours after the typhoon, oil and gas fields were demobilized and resumed production, resulting in relatively large production every year loss. [0003] The method of evacuating personnel to avoid the typhoon and delaying production shutdown in the unmanned mode of the oil field can effectively reduce the ...
Claims
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IPC IPC(8): F16L1/16
CPCF16L1/16
Inventor 张明徐正海胡冬王春升何骁勇黄喆张艺高晓蕾平朝春郑晓鹏柯尔钦乎尚超王海燕
Owner CHINA NAT OFFSHORE OIL CORP