Negative pressure drilling vibrating screen integrating negative pressure generation and gas-liquid separation
A vibrating screen and liquid separation technology, which is applied in separation methods, solid separation, sedimentation separation, etc., can solve the problems of large volume of gas-liquid separation system, high liquid content of drilling cuttings, short life of screen mesh, etc., and achieve the effect of screen penetration Good, good effect, long screen life effect
Active Publication Date: 2021-06-29
广汉市阿里圣姆石油设备有限公司
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Problems solved by technology
[0005] The object of the present invention is to provide a negative pressure drilling shale shaker integrated with negative pressure generation and gas-liquid separation, which can overcome the short service life and cost of the drilling fluid solid-liquid separation equipment for vacuum filtration with high liquid content in the drill cuttings discharged by the traditional drilling shale shaker High, the existing negative pressure drilling shale shaker gas-liquid separation system has the disadvantages of large volume and low efficiency
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[0032] Please refer to figure 1, a negative pressure drilling shale shaker integrating negative pressure generation and gas-liquid separation, which includes a base 1, a liquid inlet buffer tank 2, a screen frame assembly 300, a bracket 4, a vacuum hose 5, a vibration damping spring 6, and an adjustment of the screen frame inclination Device 7, drain hose 8, negative pressure automatic drain device 900, vacuum plate 10, tee pipe 11, liquid mist separator 12, connecting pipe 13, vacuum pressure limiting valve 14, muffler 15, negative pressure fan 16 The screen frame assembly 300 includes a rear baffle 301, a right side plate 302, a screen 303, a beam 304, a U-shaped vertical plate 305, a U-shaped horizontal plate 306, a joint 307, a motor seat 308, an excitation motor 309, and a spring seat 310, the left side plate 311 and the screen tensioning device 312; the negative pressure automatic drain device 900 includes an inlet joint 901, an upper cover plate 902, a middle partition ...
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The invention discloses a negative pressure drilling vibrating screen integrated with negative pressure generation and gas-liquid separation, comprising a base, a liquid inlet buffer tank, a screen frame assembly, a bracket, a vacuum hose, a vibration damping spring, a screen frame inclination adjustment device, a liquid discharge Hose, negative pressure automatic drain device, vacuum plate, tee pipe, liquid mist separator, connecting pipe, vacuum pressure limiting valve, muffler and negative pressure fan, after drilling fluid containing debris enters the screen forming negative pressure, Together with the air, it quickly passes through the screen and enters the vacuum chamber. In the vacuum chamber, the air is directly sucked away by the negative pressure fan from the opening of the side plate of the screen frame, and the drilling fluid passing through the screen is deposited in the vacuum chamber under the action of gravity. The lower part of the tray is discharged by the negative pressure automatic liquid discharge device through the liquid discharge hose; the formation of negative pressure and the separation of gas and liquid are both completed in the vacuum chamber under the screen; Good, large processing capacity, less liquid content in drilling cuttings, long screen life, low cost, low energy consumption, and good safety.
Description
technical field [0001] The invention relates to the technical field of oil drilling solid phase control, in particular to a negative pressure drilling vibrating screen integrated with negative pressure generation and gas-liquid separation. Background technique [0002] The existing oil drilling solid phase control technology generally uses vibrating screening to remove most of the drill cuttings carried out from the drilling fluid returned from the downhole. The drill cuttings have a high liquid content, and the follow-up environmental protection treatment has a large workload and high cost. The prior art discloses a drilling fluid solid-liquid separation device based on a vacuum-filtered continuous circulation screen, and the volume liquid content of the separated cuttings can be reduced to below 40%. The prior art also discloses a pulse vacuum drilling fluid separation device, in which a vacuum disc is installed under the first screen at the outlet end of the traditional d...
Claims
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IPC IPC(8): E21B21/06B07B1/34
CPCE21B21/066E21B21/067B07B1/34B01D21/0012B01D21/2444B01D21/283E21B21/065
Inventor 侯勇俊王钰文方潘杜明俊侯度宇
Owner 广汉市阿里圣姆石油设备有限公司