A drilling fluid viscosity detection device and method

Abstract

The application discloses a kind of drilling fluid viscosity detection device and method, belong to drilling fluid viscosity detection device technical field.A kind of drilling fluid viscosity detection device and method, including fixed pedestal, fixed pedestal rear side top surface is equipped with support plate, support plate upper end is equipped with top seat, top seat rear side top surface is equipped with rotating rod, rotating rod front side is equipped with pressure rod, fixed pedestal front side upper end is equipped with hopper, hopper upper end rear side inside is equipped with filter, moving plate left side is equipped with adjusting plate, fixed pedestal left end upper side is equipped with stopwatch, fixed pedestal upper end front side is equipped with top rod, fixed pedestal upper side is equipped with placing plate, placing plate front end upper side is equipped with measuring cylinder, by setting top plate, can be placed funnel, do not need manual holding, more labor-saving, simultaneously using pressure rod, can play to the fixation of funnel, positioning block on funnel is convenient for the quick positioning of funnel, convenient and fast, simultaneously, the use of electrical components of this device is reduced, greatly reduces manufacturing cost, so that the selling price is more popular, it is convenient for promotion.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of drilling fluid viscosity detection device, more particularly to a drilling fluid viscosity detection device and method. BACKGROUND

[0002] Drilling fluid is a variety of circulating fluids that meet the needs of drilling work in the drilling process. Drilling fluid is the blood of drilling, also known as drilling flushing fluid. Drilling fluid can be divided into clear water, mud, clay-free flushing fluid, emulsion, foam and compressed air according to its composition. Clear water is the earliest drilling fluid used, which is convenient to use and suitable for complete rock formation and areas with adequate water supply. Mud is widely used in drilling fluid, mainly suitable for unstable rock formation such as loose, fissure development, easy to collapse and drop, swelling and peeling when encountering water, etc. Drilling fluid is mainly composed of liquid phase, solid phase and chemical treatment agent. The liquid phase can be water (fresh water, salt water), oil (crude oil, diesel oil) or emulsion (mixed oil emulsion and reverse emulsion). The solid phase includes useful solid phase (bentonite, weighting material) and useless solid phase (rock). The chemical treatment agent includes inorganic, organic and high molecular compounds. The viscosity of drilling fluid has the following effects, (1) difficulty in starting the pump, high starting pump pressure, easy to produce pressure excitement and stratum leakage; (2) reduces the drilling speed; (3) large circulation pressure consumption, high total pump pressure, which is not conducive to drilling with optimized parameters; (4) easy to mud pack the drill bit, causing the well to blow out; (5) easy to be invaded by gas; (6) difficult to remove drilling cuttings and sand, affecting the solid control effect, thus causing equipment and drilling tool wear; (7) forming thick mud cake (sand cake) on the well wall, making it difficult to trip and prone to sticking.

[0003] The traditional drilling fluid viscosity detection is detected by using a funnel viscometer and a measuring cylinder. During detection, the outlet of the funnel viscometer needs to be blocked by a finger. When the finger is removed, a stopwatch is pressed. During this period, the timing accuracy of the stopwatch is affected, resulting in inaccurate detection data. The filter screen in the traditional funnel viscometer is fixed inside, which is inconvenient to clean. Manual holding is time-consuming and laborious, increasing labor.

[0004] The prior art CN208334122U is an online drilling fluid viscosity monitoring device. The controller controls the stepping motor to drive the viscosity measurement mechanism to complete automatic sampling and viscosity measurement of the drilling fluid. The whole process is highly automated and does not require human intervention, greatly improving the monitoring efficiency and safety, and does not introduce human error, making the monitoring result more accurate. However, the device still has some shortcomings. The device needs to be placed in the drilling, which is troublesome. When the device detects the drilling fluid in a drilling with a small diameter, it is not convenient to enter the drilling with a small diameter, and the practicality is poor.

[0005] The prior art CN206192824U discloses an automatic drilling fluid viscosity measuring device, which realizes automatic control of drilling fluid viscosity measurement through an electrical circuit. Pressing the start button starts the measurement, and no further operation is required. The whole test process does not need to be monitored by a person. The timer automatically stops timing after the drilling fluid is completely discharged, eliminating the deviation caused by human operation and improving the accuracy of the measurement results. However, the device has some drawbacks. When the device is used, the device uses many electrical components, which increases the manufacturing cost of the device and makes the device difficult to popularize. In addition, the electrical components are easy to damage, which makes the device inconvenient to detect.

[0006] In addition, in the existing viscosity testing device with elastic automatic trigger timer start and end transmission structure, the density of the fluid to be measured is not constant. For example, the density of the drilling fluid changes from 1.0 to 1.8 g / cm 3 around, so that the test fails even for different batches of the same sample, because the fluid may not be completely discharged or completely discharged without triggering.

[0007] Therefore, we propose a drilling fluid viscosity detection device and method to improve the defects of the existing fixed volume flow-out timing method based on gravity transmission elastic trigger structure, so that it can be accurately measured. SUMMARY

[0008] 1. Technical problems to be solved

[0009] The purpose of the present application is to provide a drilling fluid viscosity detection device and method to solve the problems raised in the background art.

[0010] 2. Technical solutions

[0011] The application discloses a drilling fluid viscosity detection device, which comprises a fixed seat, a support plate is arranged on the top surface of the rear side of the fixed seat, a top seat is arranged on the upper end of the support plate, a rotating rod is arranged on the top surface of the rear side of the top seat, a pressing rod is arranged on the front side of the rotating rod, the rotating rod drives the pressing rod to be pressed on the upper side of a funnel, a funnel is arranged on the front side of the upper end of the fixed seat and penetrates through the inside of the top seat, a limiting assembly is arranged in the inside of the front side of the filter, the bottom surface of the filter serves as a reference surface for adding the height of drilling fluid, a pull rod penetrates through the inside of the support plate in a sliding mode, a moving plate is fixedly connected to the front side of the pull rod, the bottom surface of the moving plate is in frictional contact with the top surface of a placing plate, the front end of the moving plate is in an open structure, a sealing plate is arranged in the inside of the front side of the moving plate, a transmission plate is arranged on the upper side of the rear end of the sealing plate, an adjusting plate is arranged on the left side of the moving plate, a second watch is fixedly arranged on the fixed seat, the bottom surface of the lower end of the adjusting plate is in frictional contact with the button on the upper side of the second watch, a jacking rod is slidably connected to the front side of the upper end of the fixed seat, and a spring A is connected to the bottom surface of the jacking rod.

[0012] A placing groove is formed in the top surface of the fixed seat, the inside of the lower side of the placing groove is in a rectangular structure, the lower end of the jacking rod is in sliding fit with the inner wall of the placing groove, the top surface of the rear side of the fixed seat is fixedly connected with the bottom surface of the lower end of the support plate, the bottom surface of the rear end of the top seat is fixedly connected with the top surface of the upper end of the support plate, a plurality of square mass blocks and a display module are hung on the support plate.

[0013] The right side end surface of the adjusting plate is fixedly connected with the left side end surface of the moving plate, an arc-shaped surface is formed in the lower end of the inside of the contact groove and the rear side lower end of the adjusting plate.

[0014] The spring A satisfies the following rules: when no mass block is placed in the square groove, the elastic force of the spring A can make the top end of the placing plate, which holds the fixed-volume cylinder, still higher than the bottom of the moving plate after the drilling fluid with the maximum density of the fixed volume is poured into the cylinder, the lower end of the spring A is fixedly connected with the inner wall of the lower end of the placing groove, the upper side of the front end of the placing plate is provided with a cylinder, the placing plate is in an L-shaped structure, a groove is formed in the top surface of the front end of the placing plate, the inner wall of the groove is matched with the outer wall of the lower end of the cylinder, the bottom surface of the lower end of the placing plate is fixedly connected with the top surface of the upper end of the jacking rod, and the upper side of the front end of the placing plate is provided with a cylinder.

[0015] The jacking rod is in a T-shaped structure, and the lower end of the jacking rod is in a rectangular structure.

[0016] The bottom surface of the lower end of the second watch is connected with a connecting rod, and the end surface of the lower end of the connecting rod is fixedly connected with the top surface of the left end of the fixed seat.

[0017] The top seat front side top surface is provided with a through hole, the funnel middle part outer wall is in movable contact with the through hole inner wall, the through hole outer side is provided with a plurality of positioning grooves in annular structure, the positioning grooves are embedded with pressure sensing components, the funnel upper end outer wall is connected with a plurality of positioning blocks in annular structure, the positioning block lower end is provided in triangular structure, the positioning block lower end outer wall is matched with the positioning groove inner wall, and the funnel upper end inner wall is provided with two fixing holes in left-right symmetrical structure.

[0018] The filter pot is provided in semicircular conical structure, the filter pot lower end outer wall is matched with the funnel upper end rear side inner wall, the filter pot front end upper side is provided with a clamping strip groove in penetrating manner, and the clamping strip groove middle part upper end is provided in open structure.

[0019] The limiting component comprises a lifting rod, the lifting rod upper end is connected with a hanging ring, the lifting rod lower end is hingedly connected with two connecting rods in left-right symmetrical structure, the connecting rod lower end is connected and fixed with a clamping strip through a hinge seat, the clamping strip outer wall is in sliding fit with the clamping strip groove inner wall, the clamping strip outer end is provided in convex structure, the clamping strip outer end outer wall is in plug fit with the fixing hole inner wall, a spring B is arranged between the two clamping strip inner ends, and the spring B left and right ends are respectively connected and fixed with the two clamping strip inner end faces.

[0020] The rotating rod is provided in T-shaped structure, and the rotating rod lower end outer wall is rotationally connected with the top seat rear side top surface.

[0021] The pressing rod is provided in arc structure, the pressing rod lower end outer side outer wall is provided with an inclined surface, the pressing rod lower end bottom surface is in frictional contact with the funnel top surface, the pressing rod rear side end surface is connected with a fixing rod, and the fixing rod rear end end surface is connected and fixed with the rotating rod upper end outer wall.

[0022] The sealing plate front end top surface is connected with a sealing gasket, the sealing plate front end top surface is in close contact with the funnel lower end end surface, the sealing plate rear end is rotationally connected with the moving plate front end inner wall through a pin shaft, and the sealing plate rear end middle part is connected and fixed with a gear.

[0023] The moving plate front end inner wall is provided with a placing hole, the transmission plate is provided in T-shaped structure, the transmission plate rear end outer wall is in sliding fit with the placing hole inner wall, the transmission plate rear end end surface is connected with a tension spring B, the tension spring B rear end is connected and fixed with the placing hole rear side inner wall, the transmission plate front end bottom surface is connected with a gear rack, the gear rack is in meshing transmission with the gear, and the transmission plate front end end surface is in movable contact with the funnel lower end outer wall.

[0024] Preferably, the detection method of the drilling fluid viscosity detection device comprises the following steps:

[0025] S1, first, install the funnel on the top seat, first rotate the rod, so that the rotating rod moves to one side, then you can insert the funnel into the through hole, insert the positioning block on the funnel into the positioning groove, then put the filter into the funnel, pull up the lifting rod, so that the connecting rod connects the clamping strip back into the clamping strip slot, then put the filter into the funnel, loosen the lifting rod, under the action of spring B, the outer end of the two clamping strips is inserted into the fixed hole, so that the filter is fixed in the funnel;

[0026] S2, then rotate the rod, so that the pressure rod can be pressed on the top surface of the filter, so that the filter is fixed on the top seat, then place the measuring cylinder on the recess on the top surface of the placing plate, at this time the outer wall of the lower end of the filter moves under pressure after the transmission plate, so that the rack drives the gear to rotate, then the gear drives the connected sealing plate, so that the top surface of the sealing plate seals the opening at the bottom surface of the filter;

[0027] S3, then you can pour the drilling fluid into the filter first, then flow through the filter into the funnel, until the drilling fluid height reaches the bottom surface of the filter, at this time the total of the three pressure sensing components is converted to the mass of the added drilling fluid, then the difference between the measured mass value and the reference mass value is displayed on the display module, the operator selects the same mass as the difference quality mass and puts it into the square slot, then holds the handle and quickly pulls the connected moving plate backward, at this time the sealing plate is opened, so that the drilling fluid in the funnel can flow into the lower measuring cylinder;

[0028] S4, while the moving plate moves, it drives the adjusting plate to move, so that the bottom surface of the adjusting plate presses the button on the top surface of the stopwatch, so that the stopwatch is opened at the same time, then when the moving plate moves to the back side, the placing plate is not restricted, so that the placing plate will be lifted by the top rod with spring A, so that the placing plate blocks the moving plate, completing the step of falling of the drilling fluid;

[0029] S5, as the drilling fluid in the measuring cylinder becomes more and more, the placing plate will slowly move down, when the drilling fluid in the measuring cylinder reaches the detection amount, the placing plate moves to a certain position, at this time the moving plate is not blocked, so that the contracted tension spring A will quickly pop out, so that the moving plate moves forward, so that the transmission plate on the moving plate will contact the outer wall of the lower end of the funnel, so that the transmission plate moves backward, so that the rack drives the gear to rotate, so that the connected sealing plate can seal the opening at the lower end of the funnel, completing the stop of the outflow of the drilling fluid;

[0030] S6, at the same time, when the moving plate moves forward, the front end of the moving plate will press the button on the top surface of the stopwatch again, realizing the emergency stop of the stopwatch, so as to complete the timing.

[0031] 3. Advantage

[0032] Compared with the prior art, the advantages of the present application are:

[0033] 1、The special design of the pressure sensing assembly, the mass block, the square groove and the spring elastic coefficient in the application can realize accurate timer stop time triggering and obtain accurate measurement results even for test liquids with different densities.

[0034] 2、The funnel can be placed by the top plate, without manual holding, which is more labor-saving. The pressing rod can fix the funnel, and the positioning block on the funnel facilitates quick positioning of the funnel. The device reduces the use of electrical components, greatly reduces the manufacturing cost, and makes the selling price more popular, thereby facilitating promotion.

[0035] 3、The limiting assembly is arranged, so that the filter is convenient to disassemble, thereby facilitating cleaning after use, making the cleaning more clean, and enabling the filter to be quickly installed. The recess is formed in the placement plate to facilitate fixing of the measuring cylinder, so that the measuring cylinder remains fixed and horizontal during use. The adjusting plate is arranged, so that the stopwatch can be quickly opened and closed during detection, thereby making the detection data more accurate.

[0036] 4、The sealing plate is arranged, and the rack is used to effectively seal the opening at the lower end of the filter before the sealing plate is opened, thereby avoiding poor finger plugging effect. The transmission plate with tension spring B, the top rod with spring A and the adjusting plate connected with the moving plate are used, so that the movement of the moving plate can simultaneously realize the movement of the three structures, thereby realizing nearly synchronous action and making the detection data more accurate. The rollers are arranged on the moving plate to greatly reduce the friction, thereby making the movement of the placement plate more labor-saving. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 It is a left front side view of the overall structure of the application;

[0038] Figure 2 It is a left side view of the overall structure of the application during detection;

[0039] Figure 3 It is a left front side view of the overall structure of the application;

[0040] Figure 4 It is a left front side view of the overall structure of the application;

[0041] Figure 5 It is an enlarged view of structure A of the application;

[0042] Figure 6 It is a left front side view of the overall structure of the application;

[0043] Label explanation in the figure: 1, fixed seat; 2, support plate; 3, top seat; 4, rotating rod; 5, pressure bar; 6, funnel; 7, filter; 8, limiting assembly; 9, pull rod; 10, moving plate; 11, sealing plate; 12, transmission plate; 13, adjusting plate; 14, stopwatch; 15, jacking rod; 16, placing plate; 17, measuring cylinder; 101, placing groove; 1501, spring A; 1601, groove; 1401, connecting rod; 1301, contact groove; 301, through hole; 302, positioning groove; 601, positioning block; 602, fixed hole; 701, clamping groove; 801, lifting rod; 802, connecting rod; 803, clamping strip; 804, spring B; 501, fixed rod; 901, pull spring A; 902, handle; 1001, ball; 1002, placing hole; 1101, gear; 1201, pull spring B; 1202, rack. DETAILED DESCRIPTION

[0044] Please refer to 1-6 figure, the present application provides a technical solution:

[0045] A drilling fluid viscosity detection device, comprising a fixed seat 1, the rear side top surface of the fixed seat 1 is provided with a support plate 2, the upper end of the support plate 2 is provided with a top seat 3, the front side top surface of the top seat 3 is provided with a through hole 301, the outer side of the through hole 301 is annular structure and is provided with a plurality of positioning grooves 302, a pressure sensing assembly is embedded in each positioning groove 302, a plurality of square mass blocks and a display module are hung on the support plate 2, the rear end bottom surface of the top seat 3 is connected and fixed with the upper end top surface of the support plate 2, the rear side top surface of the top seat 3 is provided with a rotating rod 4, the front side of the rotating rod 4 is provided with a pressure bar 5, the rotating rod 4 drives the pressure bar 5 to press on the upper side of the funnel 6, the front side upper end of the fixed seat 1 is provided with a funnel 6 sliding through the inside of the top seat 3, the inside of the rear side upper end of the funnel 6 is provided with a filter 7, the middle outer wall of the funnel 6 is in movable contact with the inner wall of the through hole 301, the upper end outer wall of the funnel 6 is annular structure and is connected with a plurality of positioning blocks 601, the lower end of the positioning block 601 is triangular structure, the lower end outer wall of the positioning block 601 is matched with the inner wall of the positioning groove 302, the inner wall of the upper end of the funnel 6 is left-right symmetrical structure and is provided with two fixed holes 602, the inside of the front side of the filter 7 is provided with a limiting assembly 8, the bottom surface of the filter 7 serves as a reference surface for adding drilling fluid height;

[0046] The front wall of the support plate 2 is provided with a pull rod 9, the outer wall of the pull rod 9 is in sliding connection with the outer wall of the support plate 2, the front end of the outer wall of the pull rod 9 is sleeved with a pull spring A901, the rear end of the pull spring A901 is fixedly connected with the front wall of the support plate 2, the front side of the pull rod 9 is provided with a moving plate 10, the rear end of the moving plate 10 is fixedly connected with the front end of the pull rod 9, the bottom surface of the moving plate 10 is in frictional contact with the top surface of the placing plate 16, the front end of the moving plate 10 is provided in an open structure, the front end of the moving plate 10 is provided with a placing hole 1002, the inside of the front side of the moving plate 10 is provided with a sealing plate 11, the upper side of the rear end of the sealing plate 11 is provided with a transmission plate 12, the left side of the moving plate 10 is provided with an adjusting plate 13, the left end of the upper side of the fixed seat 1 is fixedly provided with a second watch 14, the right side end surface of the adjusting plate 13 is fixedly connected with the left side end surface of the moving plate 10, the bottom surface of the front side of the adjusting plate 13 is provided with a contact groove 1301, the lower end inner wall of the contact groove 1301 and the lower end of the rear side of the adjusting plate 13 are provided with an arc surface, and the lower end bottom surface of the adjusting plate 13 is in frictional contact with the button on the upper side of the second watch 14.

[0047] The upper end of the front side of the fixed seat 1 is provided with a top rod 15, the lower end of the outer wall of the top rod 15 is in sliding fit with the inner wall of the placing groove 101, the bottom surface of the top rod 15 is connected with a spring A1501, the spring A1501 has an elastic coefficient that satisfies the following rules: when there is no mass block placed in the square groove, after a fixed volume of drilling fluid with the maximum density is poured into the measuring cylinder 17, the elastic force of the spring A1501 can make the top end of the placing plate 16 that holds the fixed volume measuring cylinder 17 still higher than the bottom of the moving plate 10, the lower end of the spring A1501 is fixedly connected with the lower end inner wall of the placing groove 101, the upper side of the fixed seat 1 is provided with a placing plate 16, a square groove is formed in the plate body of the placing plate 16, the upper side of the front end of the placing plate 16 is provided with a measuring cylinder 17, the placing plate 16 is provided in an L-shaped structure, the top surface of the front end of the placing plate 16 is provided with a groove 1601, the inner wall of the groove 1601 is matched with the outer wall of the lower end of the measuring cylinder 17, and the bottom surface of the lower end of the placing plate 16 is fixedly connected with the top surface of the upper end of the top rod 15.

[0048] Specifically, the top surface of the fixed seat 1 is provided with a placing groove 101, the inside of the lower side of the placing groove 101 is provided in a rectangular structure, and the top surface of the rear side of the fixed seat 1 is fixedly connected with the bottom surface of the lower end of the support plate 2.

[0049] Furthermore, the bottom surface of the lower end of the second watch 14 is connected with a connecting rod 1401, and the end surface of the lower end of the connecting rod 1401 is fixedly connected with the top surface of the left end of the fixed seat 1.

[0050] Further, the right end surface of the adjusting plate 13 is fixedly connected with the left end surface of the moving plate 10, the front bottom surface of the adjusting plate 13 is provided with a contact groove 1301, the lower end inner wall of the contact groove 1301 is provided with an arc surface, and the lower end bottom surface of the adjusting plate 13 is in frictional contact with the button on the upper side of the stopwatch 14.

[0051] Further, the filter 7 is provided in a semi-conical structure, the lower end outer wall of the filter 7 is matched with the upper end rear inner wall of the funnel 6, the front end upper inner wall of the filter 7 is provided with a clamping strip groove 701 in an open structure.

[0052] Further, the limiting assembly 8 comprises a lifting rod 801, the upper end of the lifting rod 801 is connected with a hanging ring, the lower end of the lifting rod 801 is hingedly connected with two connecting rods 802 in a left-right symmetrical structure, the lower end of the connecting rod 802 is fixedly connected with a clamping strip 803 through a hinge base, the outer wall of the clamping strip 803 is in sliding fit with the inner wall of the clamping strip groove 701, the outer end of the clamping strip 803 is provided in a convex structure, the outer wall of the outer end of the clamping strip 803 is in plug fit with the inner wall of the fixing hole 602, and the spring B 804 is arranged between the inner ends of the two clamping strips 803 and fixedly connected with the inner end surfaces of the two clamping strips 803.

[0053] Further, the rotating rod 4 is provided in a T-shaped structure, and the lower end outer wall of the rotating rod 4 is rotationally connected with the rear top surface of the top seat 3.

[0054] Further, the pressing rod 5 is provided in an arc structure, the lower end outer wall of the pressing rod 5 is provided with an inclined surface, the lower end bottom surface of the pressing rod 5 is in frictional contact with the top surface of the funnel 6, the rear end surface of the pressing rod 5 is connected with a fixing rod 501, and the rear end surface of the fixing rod 501 is fixedly connected with the upper end outer wall of the rotating rod 4.

[0055] Further, the rear end surface of the moving plate 10 is fixedly connected with the front end of the pull rod 9, the bottom surface of the moving plate 10 is in frictional contact with the top surface of the placing plate 16, the front end of the moving plate 10 is uniformly embedded with a plurality of rolling balls 1001, the outer wall of the rolling ball 1001 is in rolling friction with the upper rear wall of the placing plate 16, the front end of the moving plate 10 is provided in an open structure, and the front end inner wall of the moving plate 10 is provided with a placing hole 1002.

[0056] Further, the front end top surface of the sealing plate 11 is connected with a sealing gasket, the front end top surface of the sealing plate 11 is in close contact with the lower end surface of the funnel 6, the rear end of the sealing plate 11 is rotationally connected with the front end inner wall of the moving plate 10 through a pin shaft, and the rear end middle part of the sealing plate 11 is fixedly connected with a gear 1101.

[0057] It is worth noting that the transmission plate 12 is arranged in a T-shaped structure, the outer wall of the rear end of the transmission plate 12 is in sliding fit with the inner wall of the placement hole 1002, the rear end of the tension spring B1201 is connected and fixed with the inner wall of the rear side of the placement hole 1002, the bottom surface of the front end of the transmission plate 12 is connected with the rack 1202, the rack 1202 is in meshing transmission with the gear 1101, and the front end surface of the transmission plate 12 is in movable contact with the outer wall of the lower end of the funnel 6.

[0058] In addition, according to the detection method of the drilling fluid viscosity detection device, the following steps are included:

[0059] S1, first, the funnel 6 is installed on the top seat 3, the rod 4 is rotated first, so that the rod 4 moves to one side, then the funnel 6 is inserted into the through hole 301, the positioning block 601 on the funnel 6 is aligned with the positioning groove 302 and inserted, then the filter 7 is put into the funnel 6, the pull rod 801 is pulled up, so that the clamping strip 803 connected with the connecting rod 802 is retracted into the clamping strip groove 701, then after the filter 7 is put into the funnel 6, the pull rod 801 is loosened, and under the action of the spring B804, the outer ends of the two clamping strips 803 are inserted into the fixed holes 602, so that the filter 7 is fixed in the funnel 6;

[0060] S2, then the rod 4 is rotated, so that the pressing rod 5 can be pressed on the top surface of the filter 7, so that the filter 7 is fixed on the top seat 3, then the measuring cylinder 17 is placed in the groove 1601 on the top surface of the placement plate 16, at this time the outer wall of the lower end of the filter 7 is pressed and moved after the transmission plate 12, so that the rack 1202 drives the gear 1101 to rotate, then the gear 1101 drives the connected sealing plate 11, so that the top surface of the sealing plate 11 seals the opening at the bottom surface of the filter 7;

[0061] S3, then the drilling fluid can be poured into the filter 7 first, then flows into the funnel 6 through the filter 7, until the height of the drilling fluid reaches the bottom surface of the filter 7, at this time the mass of the added drilling fluid is calculated according to the sum of the three pressure sensing components, then the difference between the measured mass value and the reference mass value is displayed on the display module, the operator selects the same mass as the difference at this time and puts the mass block into the square slot, then holds the handle 902 and then pulls the connected moving plate 10 backward quickly, at this time the sealing plate 11 is opened, so that the drilling fluid in the funnel 6 can flow into the measuring cylinder 17 below;

[0062] S4, at the same time, the movement of the moving plate 10 drives the adjustment plate 13 to move, so that the bottom surface of the adjustment plate 13 presses the button on the top surface of the stopwatch 14, so that the stopwatch 14 is opened at the same time, then when the moving plate 10 moves to the rear side, the placement plate 16 is not limited, so that the placement plate 16 is lifted by the top rod 15 with the spring A1501, so that the placement plate 16 blocks the moving plate 10, and the step of the drilling fluid falling is completed;

[0063] S5, as the drilling fluid in the cylinder 17 more and more, the placement plate 16 will slowly down, when the drilling fluid in the cylinder 17 reaches the detection amount, the placement plate 16 is moved to a certain position, at this time the moving plate 10 is not blocked, so that the retracting spring A901 will quickly pop out, so that the moving plate 10 moves forward, so that the transmission plate 12 on the moving plate 10 will contact the outer wall of the lower end of the funnel 6, so that the transmission plate 12 moves backward, so that the rack 1202 drives the gear 1101 to rotate, so that the connected sealing plate 11 can seal the lower end opening of the funnel 6, complete the stop of the drilling fluid outflow;

[0064] S6, at the same time, the forward movement of the moving plate 10 will make the front end of the moving plate 10 press the button on the top surface of the stopwatch 14 again, realize the emergency stop of the stopwatch 14, and complete the timing.

[0065] When the viscosity of the drilling fluid needs to be detected, first install the funnel 6 on the top seat 3, insert the funnel 6 into the through hole 301, so that the positioning block 601 on the funnel 6 is inserted into the positioning groove 302, then rotate the lever 4, so that the pressing rod 5 is pressed on the funnel 6, at this time, because the moving plate 10 is at the front side, the transmission plate 12 is extruded by the outer wall of the lower end of the funnel 6, so that the rack 1202 drives the sealing plate 11 connected by the gear 1101 to seal the lower end opening of the funnel 6, then the drilling fluid can be poured into the filter 7 first, then flows into the funnel 6 through the filter 7, until the drilling fluid height reaches the bottom surface of the filter 7, at this time, the mass of the added drilling fluid is calculated according to the sum of the three pressure sensing components, then the difference between the measured mass value and the reference mass value is displayed on the display module, the operator selects the same mass as the difference in mass and puts it into the square slot, then holds the handle 902 and quickly pulls the connected moving plate 10 backward, at this time, the sealing plate 11 is opened, so that the drilling fluid in the funnel 6 can flow into the cylinder 17 below, at the same time, the adjusting plate 13 connected by the moving plate 10 will contact the button on the stopwatch 14, so that the button is pressed, the stopwatch 14 is started and the timing is started, at the same time, the placing plate 16 is lifted under the action of the spring A1501 under the top rod 15, which limits the movement of the moving plate 10, as the drilling fluid in the cylinder 17 increases, the spring A1501 will shrink, and the placing plate 16 will move downward, when the drilling fluid in the cylinder 17 reaches the detection amount, the upper end of the placing plate 16 just moves to the bottom surface of the moving plate 10, so that the moving plate 10 is not limited, the moving plate 10 will move forward under the action of the tension spring A901, at this time, the transmission plate 12 will contact the outer wall of the funnel 6 and move backward, so that the rack 1202 drives the sealing plate 11 connected by the gear 1101 to seal the opening of the funnel 6, at the same time, the adjusting plate 13 will contact the button on the stopwatch 14 again, so that the button is pressed, so that the stopwatch 14 is paused, thereby recording the data, after the detection is completed, rotate the rotating lever 4, so that the pressing rod 5 moves away, then pull the lifting rod 801, so that the clamping strip 803 connected by the connecting rod 802 is retracted into the clamping strip groove 701, so that the filter 7 can be detached from the funnel 6 for cleaning.

Claims

1. A drilling fluid viscosity detection device comprising a fixed seat, characterized in that: The rear top surface of the fixed seat is provided with a support plate, the upper end of the support plate is provided with a top seat, the rear top surface of the top seat is provided with a rotating rod, the front side of the rotating rod is provided with a pressing rod, the rotating rod drives the pressing rod to press on the upper side of the funnel, the front upper end of the fixed seat is provided with a funnel sliding through the inside of the top seat, the rear upper end of the funnel is provided with a filter, the front inside of the filter is provided with a limiting assembly, the bottom surface of the filter serves as a reference surface for adding drilling fluid height, the inside of the support plate is slidingly provided with a pull rod, and the pull rod completes a sealing action on the opening at the lower end of the filter through a sealing assembly; The sealing assembly comprises a moving plate, the front side of the pull rod is fixedly connected with the moving plate, the bottom surface of the moving plate is in frictional contact with the top surface of the placing plate, the front end of the moving plate is provided in an open structure, the inside of the front side of the moving plate is provided with a sealing plate, the rear end of the sealing plate is provided with a transmission plate on the upper side, the left side of the moving plate is provided with an adjusting plate, a second watch is fixedly arranged on the fixed seat, the bottom surface of the lower end of the adjusting plate is in frictional contact with the button on the upper side of the second watch, the front side of the upper end of the fixed seat is slidingly connected with a top rod, the bottom surface of the top rod is connected with a spring A, the front end of the moving plate is provided with a placing hole in the inner wall, the transmission plate is provided in a T-shaped structure, the rear end of the transmission plate is slidingly matched with the inner wall of the placing hole, the rear end of the transmission plate is connected with a pull spring B, the rear end of the pull spring B is connected with the rear inner wall of the placing hole, the front end of the transmission plate is connected with a rack, the rack is in meshing transmission with a gear, and the front end face of the transmission plate is in movable contact with the outer wall of the lower end of the funnel; The top surface of the fixed seat is provided with a placing groove, the inside of the lower side of the placing groove is provided in a rectangular structure, the outer wall of the lower end of the top rod is slidingly matched with the inner wall of the placing groove, the top surface of the rear side of the fixed seat is fixedly connected with the bottom surface of the lower end of the support plate, the bottom surface of the rear end of the top seat is fixedly connected with the top surface of the upper end of the support plate, and a plurality of square mass blocks and a display module are hung on the support plate; The front end of the sealing plate is connected with a sealing gasket, the front end of the sealing plate is in close contact with the end face of the lower end of the funnel, the rear end of the sealing plate is rotatably connected with the inner wall of the front end of the moving plate through a pin shaft, and the rear end of the sealing plate is fixedly connected with a gear in the middle.

2. The drilling fluid viscosity detection device of claim 1, wherein: The right side end face of the adjusting plate is fixedly connected with the left side end face of the moving plate, the front side bottom surface of the adjusting plate is provided with a contact groove, the lower end inner wall of the contact groove is provided with an arc surface, the top rod is provided in a T-shaped structure, and the lower end of the top rod is provided in a rectangular structure.

3. The drilling fluid viscosity detection device of claim 1, wherein: The elastic coefficient of the spring A satisfies the following rules: when no mass block is placed in the square groove, after a fixed volume of drilling fluid with the maximum density is poured into the measuring cylinder, the elastic force of the spring A can make the top end of the placing plate still higher than the bottom of the moving plate, the lower end of the spring A is fixedly connected with the inner wall of the lower end of the placing groove, the upper side of the fixed seat is provided with a placing plate, a square groove is arranged in the plate body of the placing plate, the upper side of the front end of the placing plate is provided with a measuring cylinder, the placing plate is provided in an L-shaped structure, the top surface of the front end of the placing plate is provided with a recess, the inner wall of the recess is matched with the outer wall of the lower end of the measuring cylinder, and the bottom surface of the lower end of the placing plate is fixedly connected with the top surface of the upper end of the top rod.

4. The drilling fluid viscosity detection device of claim 1, wherein: The lower end surface of the stopwatch is connected with a connecting rod, and the lower end surface of the connecting rod is connected with the left end surface of the fixed base.

5. The drilling fluid viscosity detection device of claim 3, wherein: The front side of the top base is provided with a through hole, the outer wall of the middle part of the funnel is in movable contact with the inner wall of the through hole, the outer side of the through hole is provided with a plurality of positioning grooves in an annular structure, the pressure sensing assembly is embedded in the positioning grooves, the upper end of the outer wall of the funnel is connected with a plurality of positioning blocks in an annular structure, the lower end of the positioning block is provided in a triangular structure, the outer wall of the lower end of the positioning block is matched with the inner wall of the positioning groove, and the upper end of the inner wall of the funnel is provided with two fixed holes in a left-right symmetrical structure.

6. The drilling fluid viscosity detection device of claim 5, wherein: The filter is provided in a semi-conical structure, the outer wall of the lower end of the filter is matched with the inner wall of the rear side of the upper end of the funnel, the front end of the filter is provided with a clamping strip groove in the upper side, and the middle part of the clamping strip groove is provided in an open structure.

7. The drilling fluid viscosity detection device of claim 6, wherein: The limiting assembly comprises a lifting rod, a hanging ring connected to the upper end of the lifting rod, two connecting rods hingedly connected to the lower end of the lifting rod in a left-right symmetrical structure, a clamping strip fixedly connected to the lower end of the connecting rod through a hinge base, the outer wall of the clamping strip is in sliding fit with the inner wall of the clamping strip groove, the outer end of the clamping strip is provided in a convex structure, the outer wall of the outer end of the clamping strip is in plug-in fit with the inner wall of the fixed hole, a spring B is arranged between the inner ends of the two clamping strips, and the left and right ends of the spring B are respectively connected with the inner end surfaces of the two clamping strips.

8. The drilling fluid viscosity detection device of claim 1, wherein: The rotating rod is provided in a T-shaped structure, and the lower end of the rotating rod is rotatably connected with the rear side of the top base.

9. The drilling fluid viscosity detection device of claim 1, wherein: The pressing rod is provided in an arc structure, the outer wall of the lower end of the pressing rod is provided with an inclined surface, the bottom surface of the lower end of the pressing rod is in frictional contact with the top surface of the funnel, the rear side of the pressing rod is connected with a fixed rod, and the rear end of the fixed rod is connected with the outer wall of the upper end of the rotating rod.

10. The method of claim 7, wherein the method further comprises: The method comprises the following steps: S1, first, the funnel is installed on the top base, the rotating rod is rotated to move to one side, then the funnel is inserted into the through hole, the positioning blocks on the funnel are aligned with the positioning grooves and inserted, the filter is placed in the funnel, the lifting rod is pulled up, the clamping strip connected with the connecting rod is retracted into the clamping strip groove, then the filter is placed in the funnel, the lifting rod is loosened, the outer ends of the two clamping strips are inserted into the fixed holes under the action of the spring B, and the filter is fixed in the funnel; S2, then the rotating rod is rotated, the pressing rod can press on the top surface of the filter, the filter is fixed on the top base, the measuring cylinder is placed in the groove on the top surface of the placing plate, at this time, the outer wall of the lower end of the filter is in pressure contact with the transmission plate, so that the rack drives the gear to rotate, then the gear drives the connected sealing plate, and the top surface of the sealing plate seals the opening of the bottom surface of the filter; S3, then the drilling fluid can be poured into the filter, then the drilling fluid flows into the funnel through the filter, until the height of the drilling fluid reaches the bottom surface of the filter, at this time, the total mass of the drilling fluid is calculated according to the three pressure sensing assemblies, then the difference between the measured mass value and the reference mass value is displayed on the display module, the operator selects the mass block with the same mass as the difference and puts it into the square groove, then holds the handle and quickly pulls the connected moving plate backward, at this time, the sealing plate is opened, and the drilling fluid in the funnel can flow into the lower measuring cylinder. S4, while the moving plate moves, it will drive the adjusting plate to move, so that the bottom surface of the adjusting plate presses the button on the top surface of the stopwatch, so that the stopwatch is opened at the same time, then the moving plate moves to the rear side, the placing plate is not restricted, so that the placing plate will be lifted by the top rod with spring A, so that the placing plate will block the moving plate, and the step of falling of the drilling fluid is completed; S5, as the drilling fluid in the graduated cylinder becomes more and more, the placing plate will slowly move down, when the drilling fluid in the graduated cylinder reaches the detection amount, the placing plate moves down to a certain position, at this time the moving plate is not blocked, so that the contracted tension spring A will quickly pop out, so that the moving plate moves forward, so that the transmission plate on the moving plate will contact the outer wall of the lower end of the funnel, so that the transmission plate moves backward, so that the rack drives the gear to rotate, so that the connected sealing plate can seal the opening at the lower end of the funnel, and the step of stopping the outflow of the drilling fluid is completed; S6, while the moving plate moves forward, the front end of the moving plate will press the button on the top surface of the stopwatch again, so that the stopwatch is stopped, and the timing is completed.

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