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Primary Solids Control Device for Offshore Oil Wells

A technology for oil wells and fixed baffles, which is applied in the field of primary solids control devices, can solve the problems of loss of drilling fluid liquid phase, easily damaged screens, and reduced throughput of drilling fluid vibrating screens, and achieves the effect of facilitating the collection of liquid phase

Active Publication Date: 2018-12-07
DAQING RUISID PETROLEUM MASCH MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is aimed at the shortcomings of the traditional drilling fluid shale shaker. The sieve holes on the net lead to the loss of recoverable liquid phase in the drilling fluid, the reduction of the processing capacity of the drilling fluid shale shaker and the problem of easy damage to the screen

Method used

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  • Primary Solids Control Device for Offshore Oil Wells
  • Primary Solids Control Device for Offshore Oil Wells

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Embodiment

[0033] Such as figure 1 and figure 2 As shown, the present invention is a primary solids control device for offshore oil wells, including a screen box 1, a vibrating motor 4 is arranged under the screen box 1, a support plate is arranged outside the screen box 1, and a tension spring is connected under the support plate 6. The lower end of the tension spring 6 is connected with a pillar 5, a feed port 10 is provided above one end of the screen box 1, and a solid phase discharge port 9 is provided at the other end, and a screen frame 3 is provided inside the screen box 1, and the screen frame 3 is provided with a screen 2, and the distance between the screen 2 and the horizontal plane gradually decreases along the direction from the feed port 10 to the solid phase discharge port 9, and the solid phase discharge port 9 is provided with a liquid phase outlet connected to the screen box 1. Feed box 8, the liquid phase discharge box 8 is located below the screen 2, the bottom of ...

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PUM

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Abstract

The invention discloses a primary solid control device for an offshore drilling well. The primary solid control device comprises a screening box, a vibrating motor, a supporting plate, a blocking hood and a blowout prevention device. A feed inlet is formed in the upper portion of one end of the screening box, a solid phase discharge outlet is formed in the other end of the screening box, a screen frame is arranged in the screening box, and a screen is arranged in the screen frame. A liquid phase discharging box communicating with the screening box is arranged below the solid phase discharge outlet, a liquid phase discharge outlet is formed in the bottom of the liquid phase discharging box, and the side face of the liquid phase discharging box is connected with a suction pipe which is connected with a suction fan. A plurality of spring baffle devices are arranged on the screen frame at equal intervals in the direction from the feed inlet to the solid phase discharge outlet. By means of the primary solid control device, after drilling fluid impacts the screen, the liquid phase with the solid phase particles removed can enter the space below the screen more easily, the screen is prevented from being blocked, and the drilling fluid treatment amount of the drilling fluid vibratory screen is increased; and airflow enables the impact impulsive force to be increased when the drilling fluid impacts the screen, and the solid phase particles and the liquid phase can be separated more easily.

Description

technical field [0001] The invention relates to the field of drilling fluid recovery, in particular to a primary solid control device for offshore oil wells. Background technique [0002] Drilling fluid is a general term for various circulating fluids used in the drilling process, and drilling fluid is also called drilling mud. During the drilling process, the drilling fluid can effectively cool and lubricate the drill bit, and can also balance the underlying pressure to avoid blowout and kick. In addition, the drilling fluid can also transmit power and take coring samples. According to different dispersion media, drilling fluids are mainly divided into three categories: water-based drilling fluids, oil-based drilling fluids and gas-based drilling fluids. [0003] During the drilling process, the drilling fluid enters the bottom layer through the drill pipe, and after completing its function, it is discharged together with the slag generated in the drilling. Because the dri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B21/06B01D29/05
CPCB01D29/05B01D2201/04E21B21/065
Inventor 谭正怀曾浪勇
Owner DAQING RUISID PETROLEUM MASCH MFG CO LTD
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