Drilling fluid online instrument calibration device

Abstract

The present invention relates to the technical field of oil drilling equipment, and discloses a drilling fluid online instrument calibration device, which solves the problem that drilling fluid pressure measurement by opening a hole in the fluid pipeline and installing a pressure detection instrument is prone to blockage, thereby affecting the detection accuracy. The device comprises a fluid pipeline, two detection holes are provided on the surface of the fluid pipeline, a detection box is installed on the outside of the fluid pipeline, the detection box is connected to the inside of the fluid pipeline through the two detection holes, a detection instrument body is installed on the top of the detection box, a detection groove is provided on the top of the detection box, a movable push plate is installed inside the detection box, a receiving groove is provided at the bottom of the detection groove, and a partition is installed inside the receiving groove; the drilling fluid online instrument calibration device can automatically clean up blocked impurities, effectively ensure the accuracy of drilling fluid online instrument detection, and enable the instrument to continuously perform detection, so that the device can effectively calibrate the detection instrument.

Description

Technical Field

[0001] The invention belongs to the technical field of petroleum drilling equipment, in particular to a drilling fluid online instrument calibration device. Background Art

[0002] In reservoir oil and gas detection while drilling, after the drill bit drills through the reservoir, the fluid in the reservoir will be released into the drilling fluid, and the drilling fluid carries these fluids to the surface. On the surface, oil and gas detection while drilling is the most economical and direct method to evaluate the properties of reservoir fluids and locate the depth of the reservoir. It is also the most commonly used reservoir oil and gas detection method. In most cases, reservoirs generally contain gas and heavy liquid oil components. The practice of oil and gas detection and evaluation has proved that the more components contained in the reservoir oil and gas are detected, the more accurately the oil and gas properties and characteristics of the reservoir can be described.

[0003] Currently, drilling fluid pressure is measured by drilling a hole in the fluid pipeline and installing a pressure detection instrument. However, this pressure measurement method can easily cause impurities in the drilling fluid to clog the hole, thereby affecting the accuracy of the pressure measurement of the detection instrument. Therefore, in view of the current situation, it needs to be improved. Summary of the Invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a drilling fluid online instrument calibration device, which effectively solves the problem that drilling fluid pressure measurement by opening a hole in the fluid pipeline and installing a pressure detection instrument is prone to blockage and affects the detection accuracy.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a drilling fluid online instrument calibration device, comprising a fluid pipeline, two detection holes are provided on the surface of the fluid pipeline, a detection box is installed on the outside of the fluid pipeline, the detection box is connected to the interior of the fluid pipeline through the two detection holes, a detection instrument body is installed on the top of the detection box, a detection groove is provided on the top of the detection box, a movable push plate is installed inside the detection box, a receiving groove is provided at the lower part of the detection groove, a partition is installed inside the receiving groove, an installation box is installed on one side of the detection box, a control transmission assembly is installed inside the installation box, and the control transmission assembly is connected to the movable push plate and the partition respectively.

[0006] Preferably, a movable groove is provided on the outer surface of the fluid pipeline and inside the detection box, a buffer groove is provided at the bottom of the movable push plate, a movable card block is slidably installed inside the buffer groove, a connecting rod is installed at the bottom of the movable card block, and a hemispherical pushing block is installed at the bottom of the connecting rod.

[0007] Preferably, a bellows is installed between the buffer groove and the top of the movable block, and a spring layer is installed between the buffer groove and the top of the movable block, and the spring layer is located inside the bellows.

[0008] Preferably, the control transmission assembly includes a square rotating rod and a rotating threaded rod, the square rotating rod and the rotating threaded rod are rotatably connected to one end inside the installation box, and gears are installed on one side of the square rotating rod and the rotating threaded rod, a chain is installed between the two gears, and a forward and reverse motor is installed at one end outside the installation box, and the output end of the forward and reverse motor is fixedly connected to one end of the square rotating rod.

[0009] Preferably, a linkage part is installed at the other end of the square rotating rod, and the linkage part includes a first connecting tube, a rectangular long groove is opened at one end of the first connecting tube, and the square rotating rod is movably inserted into the inside of the rectangular long groove, and a slot is opened at the other end of the first connecting tube, and an insertion shaft is movably inserted into the inside of the slot, and two long grooves are symmetrically opened on the surface of one side of the insertion shaft, and two insertion blocks are symmetrically installed at the end of the slot, and the two insertion blocks are slidably engaged in the inside of the two long grooves.

[0010] Preferably, the plug shaft is rotatably connected to the detection box, and one end of the plug shaft extends to the inside of the storage groove, a first threaded pin is installed in the middle of one side of the partition, and a threaded connection hole is opened at one end of the plug shaft, and the first threaded pin is connected to the plug shaft through the threaded connection hole.

[0011] Preferably, the surface of the rotating threaded rod is threadedly connected to a threaded moving block, and a U-shaped stopper is installed at one end of the rotating threaded rod, a connecting block is provided on one side of the U-shaped stopper, and a rotating threaded tube is fixedly installed at one end of the connecting block, a cylindrical groove is opened in the middle of one end of the detection box, the rotating threaded tube is rotatably connected to the detection box, and one end of the rotating threaded tube extends to the inside of the cylindrical groove, and a second threaded pin is installed in the middle of one side of the movable push plate, and the second threaded pin is threadedly connected to one end of the rotating threaded tube.

[0012] Preferably, a sliding block is installed at the bottom of the threaded moving block, a base plate is installed at the bottom of the installation box, a sliding limit groove is provided on the top of the base plate, the sliding block is connected to the inside of the sliding limit groove, and connecting blocks are installed on the upper and lower parts of one side of the threaded moving block, and a socket is provided on one side of the connecting block.

[0013] Preferably, an installation groove is provided on the inner side of the threaded moving block and one side of the U-shaped stopper, an iron core is installed inside the installation groove, and a conductive coil is wound around the surface of the iron core.

[0014] Preferably, a disc is fixedly mounted on one end of the first connecting pipe, an L-shaped clamp is fixedly mounted on the upper portion of the other side of the threaded moving block, and the disc is movably clamped inside the L-shaped clamp.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) During operation, the drilling fluid online instrument calibration device is provided with a detection hole, a detection box, a detection instrument body, a detection slot, a movable push plate, a storage slot, a partition, a mounting box and a control transmission component, so that the drilling fluid online instrument calibration device can automatically clean up the blocked impurities, effectively ensure the accuracy of the drilling fluid online instrument detection, and enable the instrument to continuously perform detection. Therefore, the device can effectively calibrate the detection instrument; at the same time, the device is simple and convenient to use and operate, stable and reliable, and can meet the use requirements of drilling fluid online instrument detection;

[0017] (2) During operation, the movable push plate and the partition can be effectively moved and adjusted by arranging a movable groove, a buffer groove, a movable block, a connecting rod, a hemispherical squeeze push block, a bellows, a spring layer, a square rotating rod, a rotating threaded rod, a gear, a chain, a forward and reverse motor, a linkage, a first connecting pipe, a slot, an insert shaft, a long groove, an insert block, a threaded movable block, a U-shaped block, a connecting block, a rotating threaded pipe and a cylindrical groove; by starting the forward and reverse motor, the square rotating rod is driven to rotate, the rotation of the square rotating rod drives the first connecting pipe to rotate, the rotation of the first connecting pipe drives the insert shaft to rotate through the insert block and the long groove, the rotation of the insert shaft causes the first threaded pin to move out from the inside of the threaded connection hole on the insert shaft, the movement of the first threaded pin drives the partition to move, so that the partition intercepts and seals the lower part of the detection slot; the square rotating rod is driven to rotate, the rotation of the square rotating rod drives the first connecting pipe to rotate, the rotation of the first connecting pipe drives the insert shaft to rotate through the insert block and the long groove, the rotation of the insert shaft causes the first threaded pin to move out from the inside of the threaded connection hole on the insert shaft, the movement of the first threaded pin drives the partition to move, so that the partition intercepts and seals the lower part of the detection slot; the square rotating rod is driven to rotate, the buffer The rotation of the rod drives the rotating threaded rod to rotate through the two gears and the chain, and the rotation of the rotating threaded rod causes the threaded moving block to slide inside the sliding limit groove through the sliding card block, and finally causes the threaded moving block to move to the inside of the U-shaped stopper, and causes the sliding card block to move out of the inside of the sliding limit groove, and causes the threaded moving block to drive the four connecting plug blocks to insert into the inside of the four plug holes. Since the sliding card block moves out of the inside of the sliding limit groove and the threaded moving block is stuck in the inside of the U-shaped stopper, the threaded moving block and the U-shaped stopper rotate with the rotation of the rotating threaded rod, and the rotation of the rotating threaded rod drives the connecting block and the rotating threaded tube to rotate through the connecting plug block and the plug hole. The rotation of the rotating threaded tube causes the second threaded pin to move out of the inside of the rotating threaded tube, thereby causing the second threaded pin to drive the moving push plate to move inside the detection box;

[0018] (3) During operation, the connection, transmission and separation operations can be effectively performed by arranging a sliding block, a bottom plate, a sliding limit groove, a connecting plug, a socket, a mounting groove, an iron core and a conductive coil; when the sliding block is moved out from the inside of the sliding limit groove, and the threaded moving block has been moved out from the threaded section of the rotating threaded rod, any electromagnet on the threaded moving block or the U-shaped stopper is turned on, and the magnetic force generated by turning on any electromagnet will attract the other electromagnet, and finally the threaded moving block is stuck in the inside of the U-shaped stopper and fits with each other, so that the connecting plug can be stably When the U-shaped stopper is fixed, the threaded moving block will move out from the inside of the U-shaped stopper, and the sliding block will be stuck in the inside of the sliding limit groove; when the square rotating rod and the rotating threaded rod rotate synchronously, the movement of the threaded moving block will drive the L-shaped clamping piece to move, and the movement of the threaded moving block and the L-shaped clamping piece will drive the first connecting pipe to move on the surface of the square rotating rod through the disc, and the movement of the first connecting pipe will cause the plug to move in the long groove. When the push plate and the partition need to be reset, the forward and reverse motors are started in the reverse direction, so that the square rotating rod and the rotating threaded rod rotate synchronously in the opposite direction. The rotation of the rotating threaded rod drives the rotating threaded tube to rotate through the connecting block, the socket and the connecting block, so that the second threaded pin is rotated into the interior of the rotating threaded tube, thereby moving the push plate to its original position. Then the two electromagnets are started at the same time, so that the two electromagnets repel each other with the same polarity. Since the U-shaped stopper is fixed, the threaded moving block will move out from the inside of the U-shaped stopper, and the sliding block will be stuck into the sliding block. The inside of the limiting groove, and the threaded moving block is threadedly connected to the rotating threaded rod again, so that the threaded moving block moves on the surface of the rotating threaded rod, and the movement of the threaded moving block will drive the disc and the first connecting tube to move through the L-shaped clip, and the square rotating rod is inserted into the inside of the first connecting tube, and the first connecting tube rotates and moves on the square rotating rod. The rotation of the first connecting tube drives the plug shaft to rotate through the plug block and the long groove, and the rotation of the plug shaft will cause the first threaded pin to rotate into the inside of the threaded connection hole on the plug shaft, thereby moving the partition from the lower part of the detection groove to the inside of the storage groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0020] In the attached figure: Figure 1 It is a schematic diagram of the cross-sectional structure of the present invention; Figure 2 For the present invention Figure 1 Schematic diagram of the structure of the detection box; Figure 3 This is a structural diagram of the movable push plate of the present invention; Figure 4 For the present invention Figure 1 Schematic diagram of the structure of the installation box; Figure 5 For the present invention Figure 4 A schematic diagram of a partial cross-sectional structure; Figure 6 Schematic diagram of the cross-section structure of the threaded moving block and the connecting block of the present invention; in the figure: 1, fluid pipeline; 2, detection hole; 3, detection box; 4, detection instrument body; 5, detection slot; 6, moving push plate; 7, storage slot; 8, partition; 9, installation box; 10, control transmission assembly; 11, moving slot; 12, buffer slot; 13, moving clamping block; 14, connecting rod; 15, hemispherical squeezing and pushing block; 16, bellows; 17, spring layer; 18, square rotating rod; 19, rotating threaded rod ; 20. Gear; 21. Chain; 22. Forward and reverse motor; 23. Linkage; 24. First connecting tube; 25. Slot; 26. Insert shaft; 27. Long groove; 28. Insert block; 29. ​​Threaded moving block; 2901. Sliding block; 30. U-shaped stop block; 31. Connecting block; 32. Rotating threaded tube; 33. Cylindrical groove; 34. Bottom plate; 35. Sliding limit groove; 36. Connecting insert block; 37. Socket; 38. Mounting slot; 39. Iron core; 40. Conductive coil. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] Embodiment 1, by Figures 1 to 5The present invention includes a fluid pipeline 1, two detection holes 2 are provided on the surface of the fluid pipeline 1, a detection box 3 is installed on the outside of the fluid pipeline 1, the detection box 3 is connected to the inside of the fluid pipeline 1 through the two detection holes 2, a detection instrument body 4 is installed on the top of the detection box 3, a detection groove 5 is provided on the top of the detection box 3, the detection instrument body 4 effectively detects the drilling fluid flowing into the detection box 3 through the detection holes 2 inside the fluid pipeline 1 through the detection groove 5, and a movable push plate 6 is installed inside the detection box 3. By setting the movable push plate 6, the movable push plate 6 is moved inside the detection box 3 to move the detection fluid. The drilling fluid inside the detection box 3 is squeezed into the inside of the fluid pipeline 1 through the detection hole 2. At the same time, the drilling fluid can clean the impurities blocked inside the detection hole 2 during the process of being squeezed into the inside of the fluid pipeline 1. A receiving groove 7 is provided at the lower part of the detection groove 5. A partition 8 is installed inside the receiving groove 7. Through the setting of the partition 8 of the receiving groove 7, the movable push plate 6 can seal the detection groove 5 before squeezing the drilling fluid inside the detection box 3, so as to avoid the squeezed drilling fluid from affecting the detection instrument body 4 and causing misdetection. A mounting box 9 is installed on one side of the detection box 3, and a control transmission component 10 is installed inside the mounting box 9. , the control transmission assembly 10 is connected to the mobile push plate 6 and the partition 8 respectively; a mobile groove 11 is opened on the outer surface of the fluid pipeline 1 and located inside the detection box 3, a buffer groove 12 is opened at the bottom of the mobile push plate 6, a mobile card block 13 is slidably installed inside the buffer groove 12, a connecting rod 14 is installed at the bottom of the mobile card block 13, and a hemispherical squeezing block 15 is installed at the bottom of the connecting rod 14; a bellows 16 is installed between the buffer groove 12 and the top of the mobile card block 13, and a spring layer 17 is installed between the buffer groove 12 and the top of the mobile card block 13, and the spring layer 17 is located inside the bellows 16, so that it can The impurities stuck in the detection hole 2 are cleaned. The detection hole 2 has a conical structure. When the movable push plate 6 moves inside the detection box 3, the hemispherical pushing block 15 slides inside the movable groove 11. When the hemispherical pushing block 15 moves to the detection hole 2, the extrusion force of the spring layer 17 will cause the movable block 13 and the connecting rod 14 to drive the hemispherical pushing block 15 into the detection hole 2, thereby squeezing and pushing the impurities stuck in the detection hole 2, so that the impurities enter the interior of the fluid pipeline 1, and avoid affecting the drilling fluid inside the fluid pipeline 1 from flowing into the interior of the detection box 3.

[0023] Example 2, based on Example 1, Figures 2 to 6It is given that the control transmission assembly 10 includes a square rotating rod 18 and a rotating threaded rod 19, the square rotating rod 18 and the rotating threaded rod 19 are rotatably connected to one end inside the installation box 9, and a gear 20 is installed on one side of the square rotating rod 18 and the rotating threaded rod 19, a chain 21 is installed between the two gears 20, and a forward and reverse motor 22 is installed at one end outside the installation box 9, and the output end of the forward and reverse motor 22 is fixedly connected to one end of the square rotating rod 18; the other end of the square rotating rod 18 is installed with a linkage part 23, and the linkage part 23 includes a first connecting tube 24, one end of the first connecting tube 24 is provided with a rectangular long slot, the square rotating rod 18 is movably inserted into the inside of the rectangular long slot, and the other end of the first connecting tube 24 A slot 25 is provided at one end, and an insert shaft 26 is movably inserted inside the slot 25. Two long grooves 27 are symmetrically provided on the surface of one side of the insert shaft 26. Two plug blocks 28 are symmetrically installed at the end of the slot 25. The two plug blocks 28 are slidably engaged in the two long grooves 27, so that they can be effectively rotated and adjusted; the insert shaft 26 is rotatably connected to the detection box 3, and one end of the insert shaft 26 extends to the inside of the storage groove 7. A first threaded pin is installed in the middle of one side of the partition 8, and a threaded connection hole is provided at one end of the insert shaft 26. The first threaded pin is connected to the insert shaft 26 through the threaded connection hole, so that the partition 8 can effectively seal the detection groove 5; by starting the forward and reverse motor 22, it drives the square rotating rod 1 8 is rotated, and the rotation of the square rotating rod 18 will drive the first connecting tube 24 to rotate. The rotation of the first connecting tube 24 will drive the plug shaft 26 to rotate through the plug block 28 and the long groove 27. The rotation of the plug shaft 26 will cause the first threaded pin to move out from the inside of the threaded connection hole on the plug shaft 26. The movement of the first threaded pin will drive the partition 8 to move, so that the partition 8 intercepts and seals the lower part of the detection groove 5; the surface of the rotating threaded rod 19 is threadedly connected with a threaded moving block 29, and one end of the rotating threaded rod 19 is installed with a U-shaped stopper 30, and one side of the U-shaped stopper 30 is provided with a connecting block 31, and one end of the connecting block 31 is fixedly installed with a rotating threaded tube 32. The middle part of one end of the interior of the detection box 3 is provided with a circular The cylindrical groove 33, the rotating threaded tube 32 is rotatably connected to the detection box 3, and one end of the rotating threaded tube 32 extends to the inside of the cylindrical groove 33, and a second threaded pin is installed in the middle of one side of the movable push plate 6, and the second threaded pin is threadedly connected to one end of the rotating threaded tube 32; a sliding block 2901 is installed at the bottom of the threaded moving block 29, and a bottom plate 34 is installed at the bottom of the installation box 9. A sliding limit groove 35 is provided on the top of the bottom plate 34, and the sliding block 2901 is connected to the inside of the sliding limit groove 35. The upper and lower parts of one side of the threaded moving block 29 are both installed with connecting plugs 36, and a socket 37 is provided on one side of the connecting block 31, so that the movable push plate 6 can be effectively controlled to move inside the detection box 3;The rotation of the square rotating rod 18 will drive the rotating threaded rod 19 to rotate through the two gears 20 and the chain 21. The rotation of the rotating threaded rod 19 will cause the threaded moving block 29 to slide inside the sliding limit groove 35 through the sliding block 2901, and finally the threaded moving block 29 will move to the inside of the U-shaped stopper 30, and the sliding block 2901 will be moved out from the inside of the sliding limit groove 35, and the threaded moving block 29 will drive the four connecting blocks 36 to be inserted into the inside of the four sockets 37. Since the sliding block 2901 is moved out from the inside of the sliding limit groove 35 and the threaded moving block 29 is stuck in the inside of the U-shaped stopper 30, the threaded moving block The second threaded pin 31 is moved out of the inner part of the rotating threaded tube 32, thereby causing the second threaded pin to drive the movable push plate 6 to move inside the detection box 3; a mounting groove 38 is provided on the inner side of the threaded moving block 29 and one side of the U-shaped stopper 30, and an iron core 39 is installed inside the mounting groove 38, and a conductive coil 40 is wound around the surface of the iron core 39. The combination of the iron core 39 and the conductive coil 40 is an electromagnet, which can ensure that the second threaded pin 31 is moved out of the inner part of the rotating threaded tube 32, thereby causing the second threaded pin to drive the movable push plate 6 to move inside the detection box 3; a mounting groove 38 is provided on the inner side of the threaded moving block 29 and one side of the U-shaped stopper 30, and an iron core 39 is installed inside the mounting groove 38. The surface of the iron core 39 is wound with a conductive coil 40. The combination of the iron core 39 and the conductive coil 40 is an electromagnet, which can ensure that the second threaded pin 31 is moved out of the inner part of the rotating threaded tube 32, thereby causing the second threaded pin to drive the movable push plate 6 to move inside the detection box 3; The connection between the connecting block 36 and the socket 37 is ensured to be stably and effectively connected; when the sliding block 2901 is moved out of the interior of the sliding limit groove 35, and the threaded moving block 29 has been moved out of the threaded section of the rotating threaded rod 19, any electromagnet on the threaded moving block 29 or the U-shaped stopper 30 is turned on (the conductive coil 40 is energized to make the iron core 39 generate magnetic force), and the magnetic force generated by turning on any electromagnet will attract the other electromagnet, and finally the threaded moving block 29 is stuck in the interior of the U-shaped stopper 30 and fits with each other, so that the connecting block 36 can be stably inserted into the interior of the socket 37; when it is necessary to withdraw the connecting block 36 from the interior of the socket 37 , the two electromagnets are started at the same time, so that the two electromagnets repel each other with the same polarity. Since the U-shaped stopper 30 is fixed, the threaded moving block 29 will move out from the inside of the U-shaped stopper 30, and the sliding block 2901 is stuck in the inside of the sliding limit groove 35; a disc is fixedly installed at one end of the first connecting tube 24, and an L-shaped clamp is fixedly installed on the upper part of the other side of the threaded moving block 29. The disc is movably clamped in the inside of the L-shaped clamp. When the forward and reverse motor 22 continues to rotate, and the partition 8 intercepts and seals the inside of the detection groove 5, the linkage part 23 can be effectively separated from the square rotating rod 18, so that the movable push plate 6 can effectively move inside the detection box 3;When the square rotating rod 18 and the rotating threaded rod 19 rotate synchronously, the movement of the threaded moving block 29 will drive the L-shaped clamp to move. At the same time, the movement of the threaded moving block 29 and the L-shaped clamp will drive the first connecting tube 24 to move on the surface of the square rotating rod 18 through the disc. The movement of the first connecting tube 24 will cause the insert block 28 to move inside the long groove 27, and finally separate the first connecting tube 24 from the square rotating rod 18; when the moving push plate 6 and the partition plate 8 need to be reset, the forward and reverse motors 22 are started in reverse to make the square rotating rod 18 and the rotating threaded rod 19 rotate synchronously in the opposite direction. The rotation of the rotating threaded rod 19 drives the rotating threaded tube 32 to rotate through the connecting insert block 36, the socket 37 and the connecting block 31, so that the second threaded pin is rotated into the inside of the rotating threaded tube 32, thereby moving the moving push plate 6 to its original position; then the two electromagnets are started at the same time to make the two The electromagnets repel each other due to their like polarity. Since the U-shaped block 30 is fixed, the threaded moving block 29 moves out from the inside of the U-shaped block 30, causing the sliding block 2901 to snap into the inside of the sliding limit groove 35, and the threaded moving block 29 is again threadedly connected to the rotating threaded rod 19, causing the threaded moving block 29 to move on the surface of the rotating threaded rod 19. The movement of the threaded moving block 29 drives the disc and the first connecting tube 24 to move through the L-shaped clamp, and the square rotating rod 18 is inserted into the inside of the first connecting tube 24, and the first connecting tube 24 rotates and moves on the square rotating rod 18. The rotation of the first connecting tube 24 drives the plug shaft 26 to rotate through the plug block 28 and the long groove 27. The rotation of the plug shaft 26 causes the first threaded pin to rotate into the threaded connection hole on the plug shaft 26, thereby moving the partition 8 from the lower part of the detection slot 5 to the inside of the storage slot 7.

[0024] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0025] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A drilling fluid online instrument calibration device, comprising a fluid pipeline (1), characterized in that: The surface of the fluid pipeline (1) is provided with two detection holes (2), a detection box (3) is installed on the outside of the fluid pipeline (1), the detection box (3) is communicated with the inside of the fluid pipeline (1) through the two detection holes (2), a detection instrument body (4) is installed on the top of the detection box (3), a detection slot (5) is provided on the top of the detection box (3), a movable push plate (6) is installed inside the detection box (3), a receiving slot (7) is provided on the detection box (3) on the side of the detection slot (5), and the receiving slot (7) is communicated with the detection slot (5), a partition (8) is installed inside the receiving slot (7), a mounting box (9) is installed on one side of the detection box (3), a control transmission assembly (10) is installed inside the mounting box (9), and the control transmission assembly (10) is respectively connected to the movable push plate (6) and the movable push plate (6). The invention relates to a device for detecting a fluid flow through a detection box (3) and a fluid conduit (11). The fluid conduit (11) is connected to the partition (8), and the transmission assembly (10) is controlled to drive the partition to move, so that the partition intercepts and seals the lower part of the detection slot; a movable slot (11) is provided on the outer surface of the fluid conduit (1) and located inside the detection box (3); a buffer slot (12) is provided at the bottom of the movable push plate (6); a movable block (13) is slidably installed inside the buffer slot (12); a connecting rod (14) is installed at the bottom of the movable block (13); a hemispherical extrusion block (15) is installed at the bottom of the connecting rod (14); a bellows (16) is installed between the buffer slot (12) and the top of the movable block (13); and a spring layer (17) is installed between the buffer slot (12) and the top of the movable block (13); the spring layer (17) is located inside the bellows (16).

2. The drilling fluid online instrument calibration device according to claim 1, characterized in that: The control transmission assembly (10) includes a square rotating rod (18) and a rotating threaded rod (19), the square rotating rod (18) and the rotating threaded rod (19) are rotatably connected to one end inside the installation box (9), and a gear (20) is installed on one side of the square rotating rod (18) and the rotating threaded rod (19), and a chain (21) is installed between the two gears (20). A forward and reverse motor (22) is installed at one end outside the installation box (9), and the output end of the forward and reverse motor (22) is fixedly connected to one end of the square rotating rod (18).

3. The drilling fluid online instrument calibration device according to claim 2, characterized in that: The other end of the square rotating rod (18) is provided with a linkage member (23), and the linkage member (23) includes a first connecting tube (24), one end of the first connecting tube (24) is provided with a rectangular long groove, and the square rotating rod (18) is movably inserted into the interior of the rectangular long groove, and the other end of the first connecting tube (24) is provided with a slot (25), and the interior of the slot (25) is movably inserted with an insertion shaft (26), and the surface of one side of the insertion shaft (26) is symmetrically provided with two long grooves (27), and the end of the slot (25) is symmetrically provided with two insertion blocks (28), and the two insertion blocks (28) are slidably engaged in the interior of the two long grooves (27).

4. The drilling fluid online instrument calibration device according to claim 3, characterized in that: The plug shaft (26) is rotatably connected to the detection box (3), and one end of the plug shaft (26) extends to the inside of the receiving groove (7). A first threaded pin is installed in the middle of one side of the partition (8). A threaded connection hole is opened at one end of the plug shaft (26), and the first threaded pin is connected to the plug shaft (26) through the threaded connection hole.

5. The drilling fluid online instrument calibration device according to claim 4, characterized in that: The surface of the rotating threaded rod (19) is threadedly connected to a threaded moving block (29), and a U-shaped stopper (30) is installed at one end of the rotating threaded rod (19). A connecting block (31) is provided on one side of the U-shaped stopper (30), and a rotating threaded tube (32) is fixedly installed at one end of the connecting block (31). A cylindrical groove (33) is provided in the middle of one end of the interior of the detection box (3), and the rotating threaded tube (32) is rotatably connected to the detection box (3), and one end of the rotating threaded tube (32) extends into the interior of the cylindrical groove (33). A second threaded pin is installed in the middle of one side of the movable push plate (6), and the second threaded pin is threadedly connected to one end of the rotating threaded tube (32).

6. The drilling fluid online instrument calibration device according to claim 5, characterized in that: A sliding block (2901) is installed at the bottom of the threaded moving block (29), a bottom plate (34) is installed at the bottom of the interior of the installation box (9), a sliding limit groove (35) is provided at the top of the bottom plate (34), the sliding block (2901) is connected to the interior of the sliding limit groove (35), a connecting plug (36) is installed at the upper and lower parts of one side of the threaded moving block (29), and a socket (37) is provided on one side of the connecting block (31).

7. The drilling fluid online instrument calibration device according to claim 5, characterized in that: The inner side of the threaded moving block (29) and one side of the U-shaped stopper (30) are both provided with a mounting groove (38), an iron core (39) is installed inside the mounting groove (38), and a conductive coil (40) is wound around the surface of the iron core (39).

8. The drilling fluid online instrument calibration device according to claim 5, characterized in that: A disc is fixedly mounted on one end of the first connecting tube (24), an L-shaped clamp is fixedly mounted on the upper portion of the other side of the threaded moving block (29), and the disc is movably clamped inside the L-shaped clamp.

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