Drilling fluid conductivity detection device

Abstract

The utility model relates to the technical field of drilling fluid conductivity detection, in particular to a drilling fluid conductivity detection device which comprises a main body, the top of the main body is fixedly connected with a control assembly, and a movable detection assembly is arranged in the main body; according to the utility model, the sliding plate can slide in the sliding chute by utilizing the telescopic jacking of the telescopic rod, so that the position of the detection mechanism at the bottom of the sliding plate can be accurately adjusted, and the wire wheel driven by the motor can adjust the extension length of a cable, so that the detector can be brought into deeper drilling fluid, the detection range is enlarged, and the detection efficiency is improved. By means of the band-pass filter, the phenomenon that signal transmission is blocked due to the fact that the outside interferes and shields signals when the detector transmits the detected signals can be avoided, the band-pass filter can eliminate out-of-band noise and direct-current components, useful information is extracted from noise signals through discrete wavelet transform or continuous wavelet transform, the signal-to-noise ratio is increased, and the error rate is reduced.

Description

Technical Field

[0001] This utility model relates to the field of drilling fluid conductivity detection technology, specifically a drilling fluid conductivity detection device. Background Technology

[0002] Drilling fluid conductivity testing is an important measurement technique in oil drilling, used to monitor changes in drilling fluid conductivity in real time to obtain crucial information about formation properties, drilling fluid performance, and the downhole environment. Drilling fluid conductivity testing involves measuring changes in the conductivity of drilling fluid during its circulation downhole or on the surface using specialized instruments and sensors. Conductivity is a physical property of drilling fluid, reflecting the concentration and migration capacity of ions within it. Conductivity is defined as the product of the quantity and the electric field strength in a medium equaling the conduction current density; it can also be called electrical conductivity. During exploration and logging, the conductivity of drilling mud is measured. By determining the conductivity of the drilling fluid, the formation conductivity value obtained during logging can be corrected, thereby determining rock lithology and the oil, gas, and water ratio. It is evident that accurate and timely detection of the conductivity of the electrolyte at the well logging site is of great significance. In conclusion, drilling fluid conductivity detection is one of the key technologies in oil drilling and geological exploration. By accurately measuring and analyzing changes in drilling fluid conductivity, important technical support and safety assurance can be provided for drilling operations.

[0003] Currently, when testing the conductivity of electrolytes, it is impossible to measure the conductivity of electrolytes at different depths, leading to incomplete testing. Oil-based drilling fluids have high resistivity and strong electrical insulation, making traditional conductivity measurement methods difficult to apply effectively. The repeatability and stability of the tests are flawed. Furthermore, oil-based drilling fluids shield the electric field between the electrode and the formation, causing signal transmission to be obstructed. Traditional logging methods are prone to failure under these conditions. Therefore, a drilling fluid conductivity testing device is needed to improve upon these problems. Utility Model Content

[0004] To address the limitations of current electrolyte conductivity testing methods, which cannot measure conductivity at different depths and thus lead to incomplete measurements, and considering that oil-based drilling fluids possess high resistivity and strong electrical insulation, traditional conductivity measurement methods are difficult to apply effectively, exhibiting drawbacks in repeatability and stability. Furthermore, oil-based drilling fluids shield the electric field between the electrode and the formation, hindering signal transmission and causing traditional logging methods to fail under these conditions, this invention aims to provide a drilling fluid conductivity testing device to solve the problems mentioned in the background.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A drilling fluid conductivity testing device includes a main body, a control component fixedly connected to the top of the main body, and a movable detection component disposed inside the main body;

[0007] The mobile detection assembly includes a connecting plate, a bracket and a base frame fixedly connected to the bottom of the connecting plate, a telescopic rod installed inside the bracket, a slide plate fixedly connected to the output end of the telescopic rod, a vertical rod fixedly connected to the bottom of the slide plate, a connecting block fixedly connected to the bottom of the vertical rod, a horizontal bar fixedly connected to the side of the connecting block, a spool mounted at the bottom of the horizontal bar, a motor mounted on the side of the spool, a cable fixedly connected to the bottom of the spool, a detector fixedly connected to the bottom of the cable, and a bandpass filter fixedly connected to the side of the detector.

[0008] As a preferred embodiment of this utility model, the base frame has a sliding groove inside, and the slide plate slides inside the sliding groove. There are two sliding grooves.

[0009] As a preferred embodiment of this utility model, the control component includes a control panel, a display screen is fixedly connected to the top of the control panel, and a rotary switch is provided on the top of the control panel.

[0010] As a preferred embodiment of this utility model, a working indicator light is fixedly connected to the top of the control panel, and three operation buttons are provided on the top of the control panel.

[0011] As a preferred embodiment of this utility model, the main body includes an outer frame, and a base plate is fixedly connected inside the outer frame.

[0012] As a preferred embodiment of this utility model, a top plate is fixedly connected to the top of the outer frame, and the top plate is made of stainless steel.

[0013] As a preferred embodiment of this utility model, a handle is fixedly connected to the side of the top plate, and two handles are provided.

[0014] As a preferred embodiment of this utility model, the bottom of the outer frame is fixedly connected with telescopic feet, and four telescopic feet are provided.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. In this utility model, the sliding plate can slide inside the slide groove by utilizing the telescopic extension of the telescopic rod, thereby enabling precise position adjustment of the detection mechanism at the bottom of the sliding plate. The motor-driven reel can adjust the extension length of the cable, thereby allowing the detector to be taken into deeper drilling fluid and improving the detection range.

[0017] 2. In this utility model, by using a bandpass filter, the phenomenon of signal transmission being blocked due to external interference and shielding when the detector transmits the detection signal can be avoided. The bandpass filter can eliminate out-of-band noise and DC components, and extract useful information from the noise signal by using discrete wavelet transform or continuous wavelet transform, thereby improving the signal-to-noise ratio and reducing the bit error rate. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the mobile detection component of this utility model;

[0020] Figure 3 This is a schematic diagram of the control component structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the external frame component structure of this utility model.

[0022] In the diagram: 1. Main body; 101. Outer frame; 102. Base plate; 103. Telescopic feet; 104. Top plate; 105. Handle; 2. Control components; 201. Control panel; 202. Rotary switch; 203. Display screen; 204. Work indicator light; 205. Operation buttons; 3. Movement detection components; 301. Connecting plate; 302. Bracket; 303. Telescopic rod; 304. Slide plate; 305. Base frame; 306. Slide groove; 307. Vertical rod; 308. Connecting block; 309. Horizontal rod; 310. Spool; 311. Motor; 312. Cable; 313. Detector; 314. Bandpass filter. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] Example: Please refer to Figures 1-4 The drilling fluid conductivity testing device shown includes a main body 1, a control component 2 fixedly connected to the top of the main body 1, and a movable detection component 3 disposed inside the main body 1.

[0025] In this embodiment, reference is made to Figure 1 , Figure 2 and Figure 3As shown, the moving detection component 3 includes a connecting plate 301. A bracket 302 and a base frame 305 are fixedly connected to the bottom of the connecting plate 301. A telescopic rod 303 is installed inside the bracket 302. A sliding plate 304 is fixedly connected to the output end of the telescopic rod 303. A vertical rod 307 is fixedly connected to the bottom of the sliding plate 304. A connecting block 308 is fixedly connected to the bottom of the vertical rod 307. A horizontal rod 309 is fixedly connected to the side of the connecting block 308. A reel 310 is installed at the bottom of the horizontal rod 309. A motor 311 is installed on the side of the reel 310. A cable 312 is fixedly connected to the bottom of the reel 310, and a detector 313 is fixedly connected to the bottom of the cable 312. A bandpass filter 314 is fixedly connected to the side of the detector 313. The slide plate 304 can slide inside the slide groove 306 by the extension and retraction of the telescopic rod 303, thereby allowing precise position adjustment of the detection mechanism at the bottom of the slide plate 304. The reel 310 driven by the motor 311 can adjust the extension length of the cable 312, thereby allowing the detector 313 to be taken into deeper drilling fluid and improving the detection range.

[0026] The base frame 305 has a sliding groove 306 inside, and the slide plate 304 slides inside the sliding groove 306. There are two sliding grooves 306. The control component 2 includes a control panel 201. A display screen 203 is fixedly connected to the top of the control panel 201. A rotary switch 202 is set on the top of the control panel 201. A working indicator light 204 is fixedly connected to the top of the control panel 201. Three operation buttons 205 are set on the top of the control panel 201. The bandpass filter 314 can avoid the phenomenon of signal transmission obstruction caused by external interference and shielding when the detector 313 transmits the detection signal. The bandpass filter 314 can eliminate out-of-band noise and DC components. By using discrete wavelet transform or continuous wavelet transform, useful information can be extracted from the noise signal, improving the signal-to-noise ratio and reducing the bit error rate.

[0027] In this embodiment, reference is made to Figure 1 and Figure 4 As shown, the main body 1 includes an outer frame 101, a base plate 102 is fixedly connected to the inside of the outer frame 101, a top plate 104 is fixedly connected to the top of the outer frame 101, the top plate 104 is made of stainless steel, and handles 105 are fixedly connected to the side of the top plate 104. There are two handles 105. Telescopic feet 103 are fixedly connected to the bottom of the outer frame 101. There are four telescopic feet 103. The telescopic feet 103 can prevent water accumulation on the ground from corroding the bottom of the equipment, thereby ensuring the service life of the equipment.

[0028] In this solution, a drilling fluid conductivity testing device is used by moving the device to a designated position using the handle 105. The device is then controlled via the display screen 203 and operation buttons 205. The telescopic rod 303 extends and retracts, allowing the slide plate 304 to slide inside the groove 306. This enables precise position adjustment of the testing mechanism at the bottom of the slide plate 304. Once the position is adjusted, the extension length of the cable 312 is adjusted using the reel 310 driven by the motor 311. This allows the detector 313 to be inserted into deeper drilling fluid for testing. Similarly, the detector 313 can be extended to a designated drilling fluid depth for testing. The bandpass filter 314 prevents external interference and shielding from obstructing signal transmission when the detector 313 transmits the test signal.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drilling fluid conductivity detection device comprising a body (1), characterised in that: A control component (2) is fixedly connected to the top of the main body (1), and a motion detection component (3) is provided inside the main body (1); The mobile detection component (3) includes a connecting plate (301). A bracket (302) and a base frame (305) are fixedly connected to the bottom of the connecting plate (301). A telescopic rod (303) is installed inside the bracket (302). A slide plate (304) is fixedly connected to the output end of the telescopic rod (303). A vertical rod (307) is fixedly connected to the bottom of the slide plate (304). A connecting block (308) is fixedly connected to the bottom of the vertical rod (307). A horizontal rod (309) is fixedly connected to the side of the connecting block (308). A spool (310) is installed at the bottom of the horizontal rod (309). A motor (311) is installed on the side of the spool (310). A cable (312) is fixedly connected to the bottom of the spool (310). A detector (313) is fixedly connected to the bottom of the cable (312). A bandpass filter (314) is fixedly connected to the side of the detector (313).

2. The drilling fluid conductivity detection device of claim 1, wherein: The base frame (305) has a sliding groove (306) inside, and the sliding plate (304) slides inside the sliding groove (306). There are two sliding grooves (306).

3. The drilling fluid conductivity detection device of claim 1, wherein: The control component (2) includes a control panel (201), a display screen (203) is fixedly connected to the top of the control panel (201), and a rotary switch (202) is provided on the top of the control panel (201).

4. The drilling fluid conductivity detection device of claim 3, wherein: A working indicator light (204) is fixedly connected to the top of the control panel (201), and three operation buttons (205) are provided on the top of the control panel (201).

5. The drilling fluid conductivity detection device of claim 1, wherein: The main body (1) includes an outer frame (101), and a base plate (102) is fixedly connected inside the outer frame (101).

6. The drilling fluid conductivity detection apparatus of claim 5, wherein: The top of the outer frame (101) is fixedly connected to a top plate (104), and the top plate (104) is made of stainless steel.

7. The drilling fluid conductivity detection apparatus of claim 6, wherein: The top plate (104) has a handle (105) fixedly connected to its side, and there are two handles (105).

8. The drilling fluid conductivity detection apparatus of claim 5, wherein: The bottom of the outer frame (101) is fixedly connected with telescopic feet (103), and four telescopic feet (103) are provided.

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