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Jet-type crude oil and associated gas pressurizing mixing transportation process and device

An associated gas and jet-type technology, which is applied in gas/liquid distribution and storage, pipeline systems, mechanical equipment, etc., can solve problems such as environmental pollution, resource waste, and uneconomical gas pipelines, and achieve good mixed transportation effects and reduce Maintenance cost and the effect of improving resource utilization

Inactive Publication Date: 2013-08-14
PETROCHINA CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the problem is that only a small part of the separated associated gas heating furnace can be used, and the rest of the associated gas cannot be processed, and it is uneconomical to lay another gas pipeline, so the treatment methods of on-site venting or torch burning are used, causing environmental pollution and resources. waste

Method used

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  • Jet-type crude oil and associated gas pressurizing mixing transportation process and device

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Embodiment

[0013] Embodiments of the present invention are further described with reference to the accompanying drawings:

[0014] The process steps of jet-type crude oil and associated gas pressurized mixed transportation are as follows:

[0015] (1). After the incoming oil is filtered by the filter 1 and heated by the heating furnace 5, it is input into the buffer tank 6 (or according to the working conditions, the future oil is directly input into the buffer tank 6 without heating), and the associated gas in the incoming oil is separated;

[0016] (2). The separated associated gas is input into the associated gas separation tank 7, and the separated crude oil is input into mixing pumps 2 and 3 for boosting;

[0017] (3). Pump most of the separated associated gas into the jet pump 4 to mix with the pressurized crude oil, and transport it outside after heating (or according to the working conditions, directly transport the pressurized mixed oil and gas without heating ).

[0018] The ...

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Abstract

The invention discloses a jet-type crude oil and associated gas pressurizing mixing transportation process and device. The process and the device are designed to effectively solve the problems of oil-gas mixing transportation and recovery and utilization of usable natural gas. The process comprises the steps of filtering fed oil through a filter and then inputting the oil into a buffer tank to separate associated gases in the fed oil; inputting separated associated gases into a separation tank, and inputting separated crude oil into a mixing transportation pump for pressurization; and finally, pumping separated associated gases into a jet pump, and mixing separated associated gases with the pressurized crude oil for outward transportation. By the aid of the process and the device, the transporting crude oil pressurized by the mixing transportation pump is stable in constituent and low in oil-gas content ratio. The jet pump pumps associated gases to achieve oil-and-gas mixing transportation, so that baneful influence, such as shocks and heating, caused by direct mixing transportation of oil and gases through a pump can be eliminated, the service life of the pump can be prolonged, and the maintenance cost can be reduced. The jet pup is simple in mixing transportation structure, free of moving component and good in mixing transportation effect. According to the process, the system operation efficiency can be improved, associated gases in the crude oil can be recycled completely, and the resource utilization ratio can be improved.

Description

technical field [0001] The invention relates to a jet-type crude oil and associated gas pressurized mixed transportation process and device, belonging to the technical field of oil and gas transportation in oil and gas fields. Background technique [0002] Crude oil contains associated gas. According to the existing technology, the pressurization point and the combined station only heat up, pressurize and transport the crude oil, and do not process the oil and gas. The existing site oil and gas mixed transportation process mainly includes the following two types: the first one is a small part of oil and gas separation process, that is, part of the associated gas is separated from the incoming oil through the separation buffer tank according to the on-site process, and is used by the heating furnace and directly passed through the rest of the incoming oil. Mixed pump output. Under this process, the composition of the incoming oil medium is extremely unstable, such as a large...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17D1/14
Inventor 李红才白文雄刘文娟李茂李宝斌寇联星孟金玲
Owner PETROCHINA CO LTD
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