Three-phase horizontal spiral centrifuge for oil-water sand separation

A spiral centrifuge, three-phase horizontal technology, applied in centrifuges, centrifuges with rotating drums, etc., can solve problems such as unspecified liquid separation and collection, achieve effective and reliable technical support, and reduce oil content in sand production. , The effect of reducing oil removal efficiency

Pending Publication Date: 2018-05-25
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The invention patent does not explain how to separate and collect the oil and water into their respective collection and transportation pipelines after they are discharged

Method used

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  • Three-phase horizontal spiral centrifuge for oil-water sand separation
  • Three-phase horizontal spiral centrifuge for oil-water sand separation
  • Three-phase horizontal spiral centrifuge for oil-water sand separation

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Embodiment Construction

[0025] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] figure 1 , 2 , 3, 7, and 11 show a structural diagram of a three-phase horizontal screw centrifuge for oil-water-sand separation. In the figure, this oil-water-sand separation three-phase horizontal screw centrifuge includes a drum, a screw conveyor 2, a large end flange 3, a small end flange 4, a left helical journal 5, a right helical journal 6 and a planetary gear Differential 7. The rotary drum includes a column section shell 1 and a cone section shell 1a. In the rotary drum along the radial position, the liquid pool is sequentially composed of light liquid layer oil, heavy liquid layer water and solid sediment layer sand. There are 12 vertical plates 8 welded circumferentially on the wall of the screw conveyor 2, and the blades 9 of the screw conveyor are welded on the vertical plates 8. The length of the ...

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Abstract

The invention relates to a three-phase horizontal spiral centrifuge for oil-water sand separation, belonging to the field of oil exploration and development. 12 vertical plates are circularly welded on the wall of a spiral conveyor of the horizontal spiral centrifuge, and the blades of the spiral conveyor are welded on the vertical plates. By the addition of the 12 vertical plates, the sedimentation distance of oil drops in a liquid pool is reduced, the sedimentation time is prolonged, and the separation of oil phase and a water phase and a water phase is facilitated. A cylindrical-conical oilbaffle plate is welded on the wall of the center-right end of the cylindrical-conical junction of the spiral conveyor and can block the oil phase to move towards the direction of a sand outlet, and thereof the oil content of sand production is reduced. An annular guide plate is arranged at the position, close to the large end, of a revolving drum and is more beneficial to the separation of the oil phase and the water phase, and therefore the oil removal efficiency is improved. An overflow oil baffle plate is arranged on the outer end face of a large-end flange and is used for controlling thesize of an overflow oil outlet, therefore the depth of the liquid pool is adjusted, and the optical oil-water separation effect is achieved. Practice shows that the three-phase horizontal spiral centrifuge has an obvious separation effect on oil-water sand.

Description

technical field [0001] The invention relates to a three-phase horizontal spiral centrifuge for separating oil, water and sand, which belongs to the field of petroleum exploration and development. Background technique [0002] In recent years, with the large increase in the water content of the oilfield produced fluid, the processing capacity of the produced fluid has increased, the time for transportation and treatment, and the energy consumption have increased sharply. The produced fluid needs to be dehydrated and deoiled so that the crude oil can be processed in the next step. Using a three-phase horizontal screw centrifuge to separate the three-phase oil, water and sand of the oilfield production fluid can realize the waste water discharge standard at one time while removing harmful solid particles and recovering the useful oil phase. [0003] In the treatment of "three sludges", the dehydration of oily sludge has been a common technical problem for oil refining and chem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B04B1/20B04B7/00B04B7/08B04B11/02
CPCB04B1/20B04B7/00B04B7/08B04B11/02
Inventor 胡大鹏朱明军赵一鸣于洋王静娴朱彻刘培启王泽武
Owner DALIAN UNIV OF TECH
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