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A crude oil associated gas supergravity separation device

A separation device and associated gas technology, applied in separation methods, dispersed particle separation, gas fuel, etc., can solve problems such as low separation efficiency, difficult separation of heavy oil, and large separation equipment, and achieve high gas-liquid separation efficiency and equipment size zoom out effect

Active Publication Date: 2015-10-21
国恒信(常州)检测认证技术有限公司 +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the technical deficiencies in the prior art such as low separation efficiency, large separation equipment, and difficulty in separating heavy oil, and provide a crude oil associated gas supergravity separation device that can efficiently separate crude oil associated gas

Method used

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  • A crude oil associated gas supergravity separation device

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Embodiment

[0017] It is also composed of a condenser, a decompression device, a liquid separation tank and a liquid level control system used in conjunction with the present invention, which were respectively installed in A oil field and B oil field for pilot tests, and materials from three wells were selected for treatment. A crude oil associated gas supergravity separation device has an inner diameter of the shell of 700mm, an outer diameter of the rotor (rotating bed) of 500mm, an inner diameter of the rotor of 220mm, a height of the rotor of 150mm, and a rotational speed of 1000rpm. See Table 1 and Table 2 for the two-phase flow rate, temperature and crude oil density of the mixed materials of the three wells in A oilfield and B oilfield.

[0018] Pilot test results:

[0019] For oilfield A, the pressure at the inlet and outlet of the analytical gas is 0.62Mpa, and the rotating bed speed is 600rpm. After the material treatment of the three wells, the gas volume of the crude oil is 0....

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Abstract

The invention discloses a raw oil associated gas supergravity separation device which comprises a shell, wherein a resolved gas outlet 9 is formed in the top of the shell; a demister 8 is arranged on the upper part of the shell; a baffle 12 is arranged on the middle part of the shell; a hole is formed in the middle part of the baffle and is connected with a liquid phase diversion pipe 11; a gas overflow pipe 13 is arranged on the baffle; a supporting plate 14 is arranged on the middle lower part in the shell; a liquid drainage pipe 15 is arranged on the supporting plate; a transmission shaft 10 penetrates through the middle part of the supporting plate and is connected with the lower surface of the middle part of a rotary bed 6 with a filler 5; an annular liquid phase collection bin 4 is arranged on the lower part of the supporting plate; a liquid phase outlet 3 is formed in the bottom wall of the shell; a space above the baffle is a resolving bin 7; a raw oil multi-phase fluid inlet 1 is formed in the tangent direction of the side wall of the shell; a standby inert resolved gas inlet 2 is formed in the side wall of the shell. The raw oil associated gas supergravity separation device is high in gas-liquid separation efficiency, can save the space and realize skid-mounting and is favorable for small-oil-field work on an offshore platform and dispersive small-oil-field work.

Description

technical field [0001] The invention relates to a crude oil associated gas separation device in an oilfield, in particular to a crude oil associated gas high gravity separation method and equipment. Background technique [0002] Before recovery, associated gas is mixed with crude oil, water and a small amount of solid impurities. How to effectively separate associated gas from crude oil, water and a small amount of solid impurities is the first step in the recovery of associated gas. The traditional production separator is separated under the gravitational field, the separation efficiency is low, and the separation time is long. For heavy oil, it takes longer for the bubbles to burst naturally, and the bubbles float slowly in heavy oil and extra heavy oil. Oil and gas separation poor effect. For the associated gas with high acid gas content, if mixed transportation is adopted, such associated gas will cause serious corrosion to the transmission pipeline. If high-efficiency...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D45/12C10L3/10
Inventor 刘杰李世涛王臣梁亮戴俊峰张炜强
Owner 国恒信(常州)检测认证技术有限公司
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