A real-time monitoring device for performance regulation of oil drilling fluid

Abstract

The utility model provides a kind of real-time monitoring petroleum drilling fluid performance regulation and control equipment, including rheological property detection component and filter tank, the filter cartridge and guide plate are fixedly connected in the filter tank interior, and the liquid pump is fixedly connected in guide plate upper end, and rotary support plate is rotatably connected in filter cartridge below, and the liquid supply pipe is fixedly connected in rotary support plate below, and the backflushing nozzle is fixedly connected in liquid supply pipe outlet end, and the rotary joint is fixedly connected in liquid supply pipe inlet end, and the rotary joint one side is fixedly connected with rotary assembly, and the backflushing pump is fixedly connected in rotary joint movable end, and the temporary storage tank is fixedly connected in backflushing pump inlet end;Through filter tank and filter cartridge, drilling fluid is filtered, and the liquid after filtration is stored in temporary storage tank by liquid pump, avoid impurity and enter rheological property detection component and block fine tube, guarantee measurement accuracy, and backflushing nozzle uses the liquid after filtration to clean filter cartridge, without changing drilling fluid composition, ensure monitoring data accurate.

Description

Technical Field

[0001] This utility model relates to the field of drilling fluid performance monitoring technology, and in particular to a device for real-time monitoring and regulation of oil drilling fluid performance. Background Technology

[0002] Drilling fluid is a critical circulating medium in oil and gas drilling, and its performance directly affects drilling efficiency, wellbore stability, and downhole safety. Drilling fluid properties are mainly classified into three categories: physical properties, chemical properties, and engineering properties. Physical properties include density, rheology, and filtration. Density is adjusted by adding weighting materials such as barite to balance formation pressure; rheology reflects the flow characteristics of the drilling fluid, such as viscosity and shear stress, affecting cuttings carrying capacity and pump pressure; filtration refers to the drilling fluid's ability to form a filter cake on the wellbore, and low filtration can reduce formation damage. Chemical properties involve pH, ionic stability, and inhibition. pH affects the stability of the drilling fluid system; ionic stability is maintained by adjusting the electrolyte concentration; inhibition refers to the ability to control clay hydration swelling, commonly achieved with potassium salts or polymers. Engineering properties encompass lubricity, cuttings carrying capacity, and thermal stability. Lubricity reduces drill string friction; cuttings carrying capacity ensures effective cuttings return; thermal stability ensures that performance in high-temperature well sections does not deteriorate. Therefore, monitoring and controlling drilling fluid properties is necessary. Utility Model Content

[0003] In view of this, the present invention aims to provide a device for real-time monitoring and regulation of oil drilling fluid performance, so as to solve or alleviate the technical problems existing in the prior art, or at least provide a beneficial option.

[0004] The technical solution of this utility model embodiment is implemented as follows: it includes a rheological detection component and a filter tank. A filter cartridge and a guide plate are fixedly connected inside the filter tank. A liquid pump is fixedly connected to the upper end of the guide plate. A rotating support plate is rotatably connected to the lower part of the filter cartridge. A liquid supply pipe is fixedly connected to the lower part of the rotating support plate. A backwash nozzle is fixedly connected to the water outlet end of the liquid supply pipe. A rotary joint is fixedly connected to the water inlet end of the liquid supply pipe. A rotating component is fixedly connected to one side of the rotary joint. A backwash pump is fixedly connected to the movable end of the rotary joint. A temporary storage tank is fixedly connected to the water inlet end of the backwash pump. The water inlet end of the temporary storage tank is fixedly connected to the water outlet end of the liquid pump. The water outlet end of the backwash nozzle is attached to the inner wall of the filter cartridge.

[0005] In some embodiments, the rotating assembly includes a rotary motor and a drive gear ring, the drive gear ring being fixedly connected to the outside of the rotary joint, and the gear at the power output end of the rotary motor meshing with the drive gear ring.

[0006] In some embodiments, a collection box is fixedly connected to one side of the rotating support plate, and a scraper and a lifting pipe are fixedly connected above the collection box. The inner side of the scraper is slidably connected to the outer wall of the filter cartridge.

[0007] In some embodiments, a rotating sealing plate is fixedly connected above the lifting pipe and the scraper, and a slag storage box is fixedly connected to one side of the rotating sealing plate.

[0008] In some embodiments, a lifting motor is fixedly connected to the top of the slag storage box, a spiral lifting component is fixedly connected to the power output end of the lifting motor, and the bottom of the spiral lifting component is rotatably connected to the collection box.

[0009] In some embodiments, a constant pressure pump is fixedly connected to one side of the temporary storage tank, and the water outlet of the constant pressure pump is fixedly connected to the water inlet of the rheological detection component.

[0010] In some embodiments, a density detection component is fixedly connected to one end of the rheological detection component, and an electrochemical analysis component is fixedly connected to the other end of the density detection component.

[0011] In some embodiments, a guide plate is fixedly connected to one end of the collection box.

[0012] The present invention has the following advantages due to the adoption of the above technical solution: 1. A device for real-time monitoring and regulation of oil drilling fluid performance, wherein the drilling fluid is filtered through a filter tank and a filter cartridge, and the filtered liquid is stored in a temporary storage tank by a pump to prevent impurities from entering the rheological detection component and clogging the capillary tube, thereby ensuring measurement accuracy. The filter cartridge is cleaned by backflushing the nozzle with the filtered liquid without changing the composition of the drilling fluid, thus ensuring accurate monitoring data.

[0013] 2. A device for real-time monitoring and regulation of oil drilling fluid performance, which uses a rotating support plate to drive a scraper to collect backflushed debris into a collection box, and a spiral lifting component to transport the debris to a slag storage box, thereby achieving automatic cleaning of filter slag, reducing manual intervention, and improving the continuous operating efficiency of the filtration system.

[0014] 3. A device for real-time monitoring and regulation of oil drilling fluid performance, which can simultaneously monitor key parameters such as rheology, density, and ion content through density detection and electrochemical analysis components, providing comprehensive real-time data support for drilling fluid regulation.

[0015] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a structural diagram of the main body of this utility model; Figure 2 This is a partial bottom view of the structure of this utility model; Figure 3 This is a structural diagram of the top of the filter tank of this utility model; Figure 4 This is a structural diagram of the filter cartridge installation of this utility model; Figure 5 This is a cross-sectional view of the collection box of this utility model; Figure 6 This is a cross-sectional view of the filter cartridge of this utility model.

[0018] Figure label: 1. Rheological property testing component; 2. Density testing component; 3. Electrochemical analysis component; 4. Temporary storage tank; 5. Constant pressure pump; 6. Backwash pump; 7. Filter tank; 8. Liquid pump; 9. Rotary motor; 10. Drive gear ring; 11. Rotary joint; 12. Rotary sealing plate; 13. Slag storage box; 14. Lifting motor; 15. Spiral lifting component; 16. Filter cartridge; 17. Rotary support plate; 18. Liquid supply pipe; 19. Scraper; 20. Collection box; 21. Lifting pipe; 22. Guide plate; 23. Backwash nozzle. Detailed Implementation

[0019] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0020] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0021] Example 1: As Figure 1-5As shown, a device for real-time monitoring and regulation of oil drilling fluid performance includes a rheology testing component 1 and a filter tank 7. The principle of the rheology testing component 1 in detecting the rheology of drilling fluid can be found in a variable diameter pipe drilling fluid rheology measurement method (patent publication number CN102374960A). The monitoring data can be transmitted to the operator's computer via an information transmission device, thereby regulating the drilling fluid. A filter cylinder 16 and a guide plate 22 are fixedly connected inside the filter tank 7. A pump 8 is fixedly connected to the upper end of the guide plate 22. A rotating support plate 17 is rotatably connected to the bottom of the filter cartridge 16. A liquid supply pipe 18 is fixedly connected to the bottom of the rotating support plate 17. A backwash nozzle 23 is fixedly connected to the water outlet end of the liquid supply pipe 18. A rotating joint 11 is fixedly connected to the water inlet end of the liquid supply pipe 18. A rotating component is fixedly connected to one side of the rotating joint 11. A backwash pump 6 is fixedly connected to the movable end of the rotating joint 11. A temporary storage tank 4 is fixedly connected to the water inlet end of the backwash pump 6. The water inlet end of the temporary storage tank 4 is fixedly connected to the water outlet end of the liquid pump 8. The water outlet end of the backwash nozzle 23 is attached to the inner wall of the filter cartridge 16. The rotating assembly includes a rotary motor 9 and a drive gear ring 10. The drive gear ring 10 is fixedly connected to the outside of the rotary joint 11, and the gear at the power output end of the rotary motor 9 meshes with the drive gear ring 10. Because the variable diameter tubing drilling fluid rheological measurement method requires the use of a thin tube for testing, if there are impurities in the drilling fluid being tested, they may cause the thin tube to become stuck or wear down, leading to changes in the inner diameter of the thin tube. Therefore, the drilling fluid entering the rheological testing component 1 needs to first enter the filter tank 7 and then be drawn by the pump 8 and filtered through the filter cylinder 16 into the temporary storage tank 4 for storage. After prolonged filtration, the filter cartridge 16 will become clogged. Therefore, it is necessary to use the backflushing nozzle 23, which is close to the filter cartridge 16, for backflushing cleaning. The backflushing liquid is drawn from the temporary storage tank 4 by the pump 8. The filter cartridge 16 is backflushed without changing the composition and concentration of the drilling fluid in the filter tank 7, which ensures the accuracy of the monitoring results and provides accurate data for control.

[0022] In this embodiment, a collection box 20 is fixedly connected to one side of the rotating support plate 17, and a scraper 19 and a lifting pipe 21 are fixedly connected above the collection box 20. The inner side of the scraper 19 is slidably connected to the outer wall of the filter cartridge 16. The scraper 19 can rotate synchronously with the rotating support plate 17. In this way, after the debris is flushed outward from the backflushing nozzle 23, the arc-shaped scraper 19 can concentrate the debris to the bottom and then enter the collection box 20. A rotating sealing plate 12 is fixedly connected above the lifting pipe 21 and scraper 19. The rotating sealing plate 12 is rotatably connected to the top of the filter tank 7. A slag collection box 13 is fixedly connected to one side of the rotating sealing plate 12. A lifting motor 14 is fixedly connected to the top of the slag collection box 13. A spiral lifting component 15 is fixedly connected to the power output end of the lifting motor 14. The spiral lifting component 15 is preferably an auger. The bottom of the spiral lifting component 15 is rotatably connected to the collection box 20. Every once in a while, the lifting motor 14 starts to drive the spiral lifting component 15 to rotate, transporting the debris at the bottom to the slag collection box 13 above for easy cleaning and recycling.

[0023] In this embodiment, a constant pressure pump 5 is fixedly connected to one side of the temporary storage tank 4. The outlet end of the constant pressure pump 5 is fixedly connected to the inlet end of the rheological detection component 1. A density detection component 2 is fixedly connected to one end of the rheological detection component 1, and an electrochemical analysis component 3 is fixedly connected to the other end of the density detection component 2. The constant pressure pump 5 can ensure that the pressure entering the rheological detection component 1 is stable and ensure the monitoring accuracy. The density detection component 2 uses a dual-pressure vibrating tube drilling fluid density measurement method for detection, while the electrochemical analysis component 3 is used to monitor and detect ion content, electrical stability, and oil-water ratio.

[0024] In this embodiment: because the variable diameter pipe drilling fluid rheological measurement method requires the use of a thin tube for testing, if there are impurities in the drilling fluid being tested, they will block or wear down the thin tube, causing changes in the inner diameter of the thin tube. Therefore, the drilling fluid entering the rheological testing component 1 needs to first enter the filter tank 7 and then be drawn by the pump 8 and filtered through the filter cylinder 16 into the temporary storage tank 4 for storage. After prolonged filtration, the filter cartridge 16 will become clogged. Therefore, it is necessary to use the backflushing nozzle 23, which is close to the filter cartridge 16, for backflushing cleaning. The backflushing liquid is drawn from the storage tank 4 by the pump 8. The filtered drilling fluid is backflushed on the filter cartridge 16 without changing the composition and concentration of the drilling fluid in the filter tank 7, thus ensuring the accuracy of the monitoring results and providing accurate data for control. The scraper 19 can rotate synchronously with the rotating support plate 17. After the debris is ejected outward from the back jet nozzle 23, the arc-shaped scraper 19 can concentrate the debris to the bottom and then enter the collection box 20. Every once in a while, the lifting motor 14 starts to drive the spiral lifting component 15 to rotate, and transport the debris at the bottom to the upper slag box 13 for easy cleaning and recycling. The density detection component 2 uses a dual-pressure vibrating tube drilling fluid density measurement method for detection, while the electrochemical analysis component 3 is used to monitor and detect ion content, electrical stability, and oil-water ratio.

[0025] Example 2: A device for real-time monitoring and regulation of oil drilling fluid performance. This example is an improvement on Example 1, as follows: Figure 1-5 As shown, In this embodiment, a guide plate 22 is fixedly connected to one end of the collection box 20. The guide plate 22 can increase the amount of debris that the collection box 20 can capture when it rotates.

[0026] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A device for real-time monitoring and regulation of oil drilling fluid performance, comprising a rheological testing component (1) and a filter tank (7), characterized in that: The filter tank (7) is fixedly connected to a filter cylinder (16) and a guide plate (22). A liquid pump (8) is fixedly connected to the upper end of the guide plate (22). A rotating support plate (17) is rotatably connected to the lower part of the filter cylinder (16). A liquid supply pipe (18) is fixedly connected to the lower part of the rotating support plate (17). A backwash nozzle (23) is fixedly connected to the water outlet end of the liquid supply pipe (18). A rotary joint (11) is fixedly connected to the water inlet end of the liquid supply pipe (18). A rotating component is fixedly connected to one side of the rotary joint (11). A backwash pump (6) is fixedly connected to the movable end of the rotary joint (11). A temporary storage tank (4) is fixedly connected to the water inlet end of the backwash pump (6). The water inlet end of the temporary storage tank (4) is fixedly connected to the water outlet end of the liquid pump (8). The water outlet end of the backwash nozzle (23) is attached to the inner wall of the filter cylinder (16).

2. The device for real-time monitoring and regulation of oil drilling fluid performance according to claim 1, characterized in that: The rotating assembly includes a rotary motor (9) and a drive gear ring (10). The drive gear ring (10) is fixedly connected to the outside of the rotary joint (11), and the gear at the power output end of the rotary motor (9) meshes with the drive gear ring (10).

3. The device for real-time monitoring and regulation of oil drilling fluid performance according to claim 2, characterized in that: A collection box (20) is fixedly connected to one side of the rotating support plate (17), and a scraper (19) and a lifting pipe (21) are fixedly connected above the collection box (20). The inner side of the scraper (19) is slidably connected to the outer wall of the filter cartridge (16).

4. The device for real-time monitoring and regulation of oil drilling fluid performance according to claim 3, characterized in that: A rotating sealing plate (12) is fixedly connected above the lifting pipe (21) and the scraper (19), and a slag storage box (13) is fixedly connected to one side of the rotating sealing plate (12).

5. The device for real-time monitoring and regulation of oil drilling fluid performance according to claim 4, characterized in that: The top of the slag storage box (13) is fixedly connected to a lifting motor (14), and the power output end of the lifting motor (14) is fixedly connected to a spiral lifting component (15). The bottom of the spiral lifting component (15) is rotatably connected to the collection box (20).

6. The device for real-time monitoring and regulation of oil drilling fluid performance according to claim 1, characterized in that: A constant pressure pump (5) is fixedly connected to one side of the temporary storage tank (4), and the outlet of the constant pressure pump (5) is fixedly connected to the inlet of the rheological testing component (1).

7. The device for real-time monitoring and regulation of oil drilling fluid performance according to claim 6, characterized in that: One end of the rheological detection component (1) is fixedly connected to the density detection component (2), and the other end of the density detection component (2) is fixedly connected to the electrochemical analysis component (3).

8. The device for real-time monitoring and regulation of oil drilling fluid performance according to claim 3, characterized in that: A guide plate (22) is fixedly connected to one end of the collection box (20).

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