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Drilling fluid sampler with anti-settling function for oil field

A drilling fluid and anti-subsidence technology, which is applied in the direction of earthwork drilling and production, wellbore/well components, etc., can solve the problems of drilling fluid sampling, the influence of test results, inconvenient removal, etc.

Pending Publication Date: 2022-05-06
常煜
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the inability to sample the drilling fluid in deep layers, and after sampling, the sediment in the drilling fluid in the bucket will settle and adhere to the bottom and wall of the bucket, which is inconvenient to take out completely from the bucket. Disadvantages and technical problems affecting the results of laboratory testing: provide a drilling fluid sampler with anti-subsidence function for oil fields

Method used

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  • Drilling fluid sampler with anti-settling function for oil field
  • Drilling fluid sampler with anti-settling function for oil field
  • Drilling fluid sampler with anti-settling function for oil field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A kind of drilling fluid sampler with anti-subsidence function for oil field, such as Figure 1-Figure 14 As shown, it includes a base 101, a support rod 102, a rectangular frame 103, a first servo motor 104, a first rotating rod 105, a first gear 106, a tooth plate 107, a first housing 108, a liquid inlet housing 109, and a liquid inlet 109a, the second casing 110, the drilling fluid collection port 110a, the third casing 111, the sampling mechanism, the anti-sedimentation mechanism and the cleaning mechanism, the support rod 102 is fixedly connected to the base 101, and the support rod 102 is rotatably connected with a rectangular frame 103. The rear end of the frame 103 is fixedly connected with a first servo motor 104, the output shaft of the first servo motor 104 is fixedly connected with a first rotating rod 105, and the first rotating rod 105 is rotatably connected to the rectangular frame 103, and the first rotating rod 105 is fixed Connected with the first gear...

Embodiment 2

[0036] On the basis of Example 1, such as Figure 2-Figure 12 As shown, the sampling mechanism includes a bracket 201, an electric push rod 202, a first sliding plate 203, a wedge plate 204, an extruding rod 205, a first spring 206, a second servo motor 207, a rotating plate 208, and a circular support frame 209 , a residual liquid collection barrel 210, a sampling barrel 211 and a blockage block 212, two brackets 201 are provided, and the two brackets 201 are fixedly connected to the left and right sides of the inside of the first housing 108 respectively, and the insides of the two brackets 201 are fixedly connected with electric motors. Push rods 202, the lower ends of the telescopic rods of the two electric push rods 202 are fixedly connected with a first sliding plate 203, and the lower surface of the first sliding plate 203 is fixedly connected with eight wedge-shaped plates 204, and the inside of the wedge-shaped plates 204 has a first chute 204a, the lower surface of t...

Embodiment 3

[0046] On the basis of Example 2, such as Figure 13-Figure 14 As shown, a cleaning water circulation mechanism is also included. The cleaning water circulation mechanism includes a first filter plate 501, a circulation pipe 502, a water pump 503 and a cleaning water circulation anti-blocking assembly. The first filter plate 501 is fixed in the middle of the residual liquid collection bucket 210 The first filter plate 501 has several filter holes, the circulation pipe 502 is embedded in the residual liquid collection bucket 210, the lower end of the circulation pipe 502 is located in the lower part of the residual liquid collection bucket 210, the upper end of the circulation pipe 502 is connected with the first shell 108, and the pumping The water pump 503 is fixedly connected to the inner upper end of the first housing 108 , and the cleaning water circulation anti-blocking component is fixedly connected to the inner wall of the residual liquid collection barrel 210 .

[0047...

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Abstract

The invention relates to the technical field of oil field well drilling samplers, in particular to a drilling fluid sampler with an anti-sedimentation function for an oil field. The technical problems that deep drilling fluid cannot be sampled, silt in the drilling fluid in a water bucket can be precipitated and attached to the bottom and the wall of the water bucket after sampling, the silt is inconvenient to be completely taken out of the water bucket, and the test and detection result is influenced during test and detection are solved. Comprising a third shell interior, a sampling mechanism and an anti-settling mechanism; the sampling mechanism is fixedly connected to the upper portion in the third shell, and the anti-sedimentation mechanism is fixedly connected to the interior of the sampling mechanism. By arranging the anti-sedimentation mechanism, four reciprocating lead screws are driven by four second gears to rotate, sediment of drilling fluid in the four sampling barrels is prevented from sinking to the bottom during standing, four second sliding plates are driven by the four reciprocating lead screws to slide, and the situation that when the four sampling barrels rotate, the sediment in the drilling fluid in the four sampling barrels is blocked is avoided. Sediment in the drilling fluid in the sampling barrel adheres to the wall under the action of centrifugal force.

Description

technical field [0001] The invention relates to the technical field of oilfield drilling samplers, in particular to a drilling fluid sampler for oilfields with an anti-subsidence function. Background technique [0002] Drilling fluid is an essential circulating medium in oil drilling construction. It mainly provides hydrostatic pressure, removes cuttings in drilling work, and cools the drill bit. It is the blood of drilling. The existing drilling fluid in oil drilling work is the circulation When the circulating drilling fluid passes through the high-frequency vibrating screen, the cuttings and a small amount of sand contained in the drilling fluid will be discharged, and the drilling fluid at this time will enter the mud pool and mix with other drilling fluids. [0003] However, after the circulating drilling fluid goes through the above steps, its own properties will change, and the staff needs to take a sample to test it. It has been tested whether the performance of the ...

Claims

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Application Information

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IPC IPC(8): E21B49/08E21B27/00
CPCE21B49/081E21B27/005
Inventor 常煜
Owner 常煜