Screening equipment for oil-based drilling fluid solid control equipment based on moving baffles

A technology of oil-based drilling fluid and moving baffle, which is applied in earthwork drilling, wellbore flushing, wellbore/well components, etc., which can solve the problems of loss and departure of recoverable liquid phase of drilling fluid, and improve the screening effect , Avoid damage and reduce the cost of use

CN105863534BInactive Publication Date: 2018-12-07定边县泽林石油工程有限公司
7 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2018-12-07
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
Patent Text Reader

Abstract

The invention discloses a moving baffle based screening device of oil-based drilling fluid solid control equipment. The screening device comprises a screen frame and a screen, a guide rail and a fixed baffle are arranged on the screen frame sequentially, the longer side of the bottom surface of the fixed baffle is perpendicular to the screen frame, a slider is arranged on the guide rail, the moving baffle is mounted on the slider and parallel to the fixed baffle, a sleeve is mounted on the side face, facing the fixed baffle, of the moving baffle and is perpendicular to the moving baffle, a spring and a supporting rod are arranged in the sleeve, a spring is connected to one end, positioned in the sleeve, of the supporting rod, and the other end of the supporting rod is fixed on the fixed baffle. The moving baffle based screening device of the oil-based drilling fluid solid control equipment has the advantages that the device enables a liquid phase and a solid phase in drilling fluid to be further separated from each other, so that screening effect is strengthened, loss of the circulating liquid phase is caused by the fact that the liquid phase in the drilling fluid moves to a screen outlet along with the solid phase when not separated from the solid phase during screening is avoided, use cost of the drilling liquid is reduced and environmental protection is achieved.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the field of drilling fluid recovery, in particular to screening equipment for oil-based drilling fluid solid control equipment based on a mobile baffle. 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 sla...

Examples

Embodiment

[0023] Such as figure 1 As shown, the present invention is a screening device for oil-based drilling fluid solid control equipment based on a mobile baffle, including a screen frame 1, a screen 2 is arranged in the screen frame 1, and along the direction from the entrance to the exit of the screen 2, A guide rail 3 and a fixed baffle 4 are sequentially arranged on the screen frame 1, the longer side of the bottom surface of the fixed baffle 4 is perpendicular to the screen frame 1, the height of the fixed baffle 4 is parallel to the normal line of the screen frame 1, and the guide rail 3 is provided with a slide block 5, the slide block 5 is equipped with a movable baffle 7, the movable baffle 7 is parallel to the fixed baffle 4, and the side of the movable baffle 7 facing the fixed baffle 4 is equipped with a sleeve 9, the sleeve 9 is perpendicular to the movable baffle 7, and the sleeve 9 is provided with a spring 6 and a support rod 8. The support rod 8 is located at one en...