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Declining-type oil-water separation device with multilayer wing-shaped plates

A cement separation and airfoil technology, which is applied in liquid separation, separation methods, and production of fluids, etc., can solve the problems of reducing cost, inability to collect and discharge sludge online, and low oil-water separation and treatment efficiency. The effect of reducing equipment cost

Active Publication Date: 2012-07-04
DAQING OILFIELD CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a kind of multilayer airfoil oblique type oil-cement separation device, to solve the problem that the existing separation device is difficult to further greatly improve the oil-water separation treatment efficiency of the oil well production fluid with a water content ≥ 90% (the existing separation Low efficiency of oil-water separation of the device), cost reduction and inability to centrally collect and discharge sludge online

Method used

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  • Declining-type oil-water separation device with multilayer wing-shaped plates
  • Declining-type oil-water separation device with multilayer wing-shaped plates
  • Declining-type oil-water separation device with multilayer wing-shaped plates

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specific Embodiment approach 1

[0030] Specific implementation mode one: as Figure 1-9 As shown, the multi-layer airfoil inclined oil cement separation device described in this embodiment includes a main container 19, an oil outlet pipe 6 and a water outlet pipe 17, and the separation device also includes an oil-water pre-separation container 2, a water inlet pipe 3, an inlet Oil pipe 4, connecting oil pipe 5, water transfer pump 9, isolation member 8, multiple wing plates 21, multiple oil guide plates 27 with L-shaped cross-section, two arc-shaped oil separators 28 and mud collection and discharge mechanism 22. The main container 19 is arranged obliquely and the angle α between the central axis of the main container 19 and the horizontal plane is 6°-15°. The oil-water pre-separation container 2 is horizontally arranged above the main container 19. The oil-water pre-separation container 2 There is a crude oil production fluid inlet 1 (the production fluid enters the device through the crude oil production f...

specific Embodiment approach 2

[0033] Specific implementation mode two: as figure 1 As shown, the included angle α between the central axis of the main container 19 in this embodiment and the horizontal plane is 12°. Tests have proved that when the angle α between the central axis of the main container 19 and the horizontal plane is 12°, the separation effect is the best. Other components and connections are the same as those in the first embodiment.

specific Embodiment approach 3

[0034] Specific implementation mode three: as figure 2 As shown, the included angle β between the side wing plate 21 - 2 in each wing plate 21 and the horizontal plane in this embodiment is 10°-15°. Other compositions and connections are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses a declining-type oil-water separation device with multilayer wing-shaped plates, relating to an oil-cement separation device, which solves the problems that it is difficult to further increase the oil-water separation treatment efficiency of oil well extraction fluid with water ratio more than or equal to 90% for a traditional separation device by a large margin and difficult to reduce the cost, and unable to online collect and discharge sludge intensively. A main body container is divided into an oil treatment chamber and a water treatment chamber by an isolation member; the lower side wall of an oil-water pre-separation container is communicated with the water treatment chamber by a water inlet pipe; the upper side wall of the oil-water pre-separation container is communicated with the oil treatment chamber by an oil inlet pipe; one end communicated with the oil pipe is communicated with the water treatment chamber, while the other end is communicated with the oil treatment chamber; wing-shaped plates are arranged in the water treatment chamber, and each wing-shaped plate consists of a sludge-collecting groove, two side wing plates and two wing tail folded plates. Through arranging the wing-shaped plates and a sludge-collecting and discharging mechanism, and adopting the extraction fluid pre-separation and oil-water separated chambers treatment mechanism and a back mixing inhibition measure, the oil-water efficient separation of the very high water-content crude oil extraction fluid and the on-line collection and discharging of the sludge are realized.

Description

technical field [0001] The invention relates to an airfoil used for oil-cement separation of ultra-high water-containing crude oil production fluid, an oil-cement separation device and an oil-cement separation method of crude oil production fluid, belonging to the field of oil-cement separation in oilfields. Background technique [0002] For oil well production fluids with a water content of more than 30%, due to the limitation of the water content of the incoming liquid of the electric dehydration equipment, the oilfields in my country generally adopt the two-stage dehydration process to produce purified crude oil. That is, the first stage is thermochemical sedimentation dehydration or free water removal, which reduces the water content of crude oil to ≤30%; the second stage is electric dehydration, which reduces the water content of crude oil from ≤30% to the qualified purified oil index (generally For water ≤ 0.5%). [0003] At present, the old oilfields in eastern my co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D17/028B01D21/02E21B43/34
Inventor 宋承毅孙占华张延松于海波
Owner DAQING OILFIELD CO LTD