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A separator tank for separation of fluid comprising water, oil and gas, use of such a tank, and a method for separating a fluid including water, oil, and gas

A separation tank and fluid technology, applied in the field of separation tanks, can solve the problems of oil production stop, high cost, time-consuming maintenance work, etc., and achieve the effect of prolonging the service life

Inactive Publication Date: 2008-12-24
SHCLUMBERGER NORGE AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Despite the fact that this separator has been known for many years, it does not appear to be widely used
Furthermore, since the separator consists of several chambers and multiple components, maintenance work will be time-consuming, which can lead to costly production shutdowns

Method used

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  • A separator tank for separation of fluid comprising water, oil and gas, use of such a tank, and a method for separating a fluid including water, oil, and gas
  • A separator tank for separation of fluid comprising water, oil and gas, use of such a tank, and a method for separating a fluid including water, oil, and gas
  • A separator tank for separation of fluid comprising water, oil and gas, use of such a tank, and a method for separating a fluid including water, oil, and gas

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[0074] 1, three separation tanks of the present invention are used as the separator of three-phase separation

[0075] see Figure 5 , schematically shows the application of a separation tank to separate well production fluid streams including oil, gas and water.

[0076] The application consists of three separation tanks 1, 1', 1" of the invention. The first outlet 4 of the tank 1 is for oil and gas and is connected with the inlet 3' on the tank 1'. Likewise, the second outlet of the tank 1 5 is for water (with very little oil vapor) and connects to inlet 3" on tank 1".

[0077] Well fluid separated from the wellhead is directed to tank 1 via inlet 3 . In Tank 1, the fluid is separated into an oil-gas phase and an aqueous phase. The oil-gas phase is withdrawn from the tank 1 via the first outlet 4 and led to the tank 1' via the inlet 3'. The aqueous phase (with a very small amount of oil vapor) is withdrawn from the tank 1 via the second outlet 5 and directed to the tank ...

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Abstract

A separator tank (1) comprising an essentially cylindrical vertical tank, a tangentially arranged inlet (3) in an upper part (9) of the tank, at least one first outlet (4) for oil and gas in the upper part of the tank, and at least one second outlet (5) for water in a lower part of the tank. A vortex zone (7) comprises a downward protruding conical frusta shaped wall (8) with an opening (11) at the lower end to allow communication between the upper and lower part of the tank. A helical spiralling vane is disposed on the upward directed part of said conical frusta shaped wall.

Description

technical field [0001] The invention relates to a separator tank for separating fluids including water, oil and gas. Background technique [0002] In the petroleum industry, the extraction of crude oil involves a mixture of oil, gas, and water from underground deposits. One or more stages of initial separation are usually performed at the wellhead to remove additional water and gas before the crude oil is ready to be discharged for export. [0003] After initial separation, crude oil and gas can be further purified before discharge for refining or the like. After further purification, the water and sand are usually discharged into suitable reservoirs such as the sea or into storage as required. [0004] When maturing an oil and gas field, it is often found that the volume of water accompanying the oil and gas becomes much greater and, therefore, the greater volume of water produced must be treated at the wellhead production facility in order to maintain an acceptable rate ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D19/00B01D21/02E21B43/34B04C3/00
CPCB01D19/0057B04C5/103
Inventor J·福克旺
Owner SHCLUMBERGER NORGE AS
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