A drilling fluid high temperature and high pressure test protection device

Abstract

The present invention belongs to the technical field of drilling fluid testing, and in particular, relates to a high-temperature and high-pressure testing protection device for drilling fluid, comprising a base, an air pump is fixedly installed at the bottom of the base, and an air supply mechanism is installed together with the output end of the air pump and the base, a cavity is opened on the inner upper side of the base, and the cavity is connected with the air supply mechanism, a hose connector is fixedly inserted into the cavity wall of the cavity, and a pressure trigger prompt mechanism is installed inside the cavity. The present invention can timely and effectively remind test personnel of damage and leakage of soft hoses through double detection, thereby achieving the effect of protecting test personnel, and can assist in the removal of drilling fluid cups, with simple operation, reducing the possibility of scalding, and improving the protection effect on personnel. At the same time, it can remind personnel to conduct various inspections of the test, prevent missed inspections, improve test safety, and assist in cooling the drilling fluid cup after the test.

Description

Technical Field

[0001] The invention belongs to the technical field of drilling fluid testing, and in particular relates to a drilling fluid high-temperature and high-pressure testing protection device. Background Art

[0002] Drilling fluid is an important liquid used to cool the drill bit, clean the wellbore, transport cuttings and maintain the stability of the wellbore during the drilling process. High temperature and high pressure filtration loss test is a method to evaluate the comprehensive performance of drilling fluid.

[0003] At present, when conducting high temperature and high pressure filtration loss tests of drilling fluids, drilling fluid high temperature and high pressure filtration loss testers are generally used, such as Figure 1 As shown in the figure, J is a drilling fluid high temperature and high pressure filtration loss tester, a is a bracket, b is a heating cover box, c is a drilling fluid cup, d and e are upper and lower valve stems of the drilling fluid cup respectively, f is a receiver assembly, g is a nitrogen assembly, and h is two gas delivery soft rubber hoses. When conducting the test, the stirred drilling fluid is quantitatively poured into the drilling fluid cup, and after the cup cover, sealing gasket, filter paper, upper and lower valve stems, three-way valve, etc. are assembled, the drilling fluid cup is placed in the heating cover box and preheated, and then the two gas delivery soft rubber hoses are connected to the three-way valve of the drilling fluid cup and the pipe mouth of the receiver assembly respectively, and then the high temperature and high pressure test can be carried out;

[0004] However, during the test, since the two gas transmission soft rubber hoses need to withstand high pressure, bending and other pressures, as well as the aging effect of time, local leakage and weakness may occur, resulting in high-pressure nitrogen being ejected from leaks or weak points during high-pressure operations. If the personnel do not wear protective equipment such as goggles, the test personnel may be injured, and it is difficult to find leaks and weak points by visual inspection alone. At the same time, after conducting high-temperature and high-pressure tests, some test personnel do not wear anti-scalding gloves to save trouble, and take out the drilling fluid cup through the upper valve stem, which may cause burns. Wearing anti-scalding gloves will also cause the fingers to be less flexible and the drilling fluid cup may fall off, which is not conducive to test safety. Summary of the invention

[0005] The purpose of the present invention is to provide a drilling fluid high temperature and high pressure test protection device in view of the above problems.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a drilling fluid high temperature and high pressure test protection device, comprising a base, an air pump is fixedly installed at the bottom of the base, and an air supply mechanism is installed together with the output end of the air pump and the base, a cavity is opened on the upper side of the inner part of the base, and the cavity is connected with the air supply mechanism, a hose connector is fixedly inserted into the cavity wall of the cavity, a pressure trigger prompt mechanism is installed inside the cavity, a movable sleeve is sleeved on the outer side of the base, and an optical detection trigger prompt mechanism is installed in cooperation with the movable sleeve and the cavity;

[0007] An air intake pipe is fixedly installed at the suction end of the air pump, a U-shaped plate is provided on the outer side of the base, and a handle is fixedly installed on the side wall of the U-shaped plate, the U-shaped plate and the air intake pipe are fixedly connected to a negative pressure adsorption mechanism, a convex column is integrally formed on the top of the base, and a strip cavity is provided inside the convex column, and the strip cavity is connected to the air supply mechanism, a voice check prompt mechanism is provided inside the strip cavity, a controller and a voice announcer are fixedly installed on the outer side wall of the base, the voice check prompt mechanism is electrically connected to the voice announcer through the controller, and an auxiliary cooling mechanism connected to the air supply mechanism is provided on the inner upper side of the base.

[0008] Preferably, the air supply mechanism includes an air cavity opened on the lower side of the base, and the output end of the air pump is connected to the air cavity, the cavity wall of the air cavity is provided with a first exhaust hole, a second exhaust hole, a third exhaust hole and a valve stem vent hole, a first normally closed solenoid valve is installed inside the first exhaust hole, a second normally closed solenoid valve is installed inside the second exhaust hole, a first normally open solenoid valve is installed inside the third exhaust hole, a third normally closed solenoid valve is installed inside the valve stem vent hole, the cavity is connected to the first exhaust hole, and the strip cavity is connected to the third exhaust hole.

[0009] Preferably, the pressure-triggered prompt mechanism includes an insulating cylinder fixedly arranged inside the cavity, an insulating piston is slidably arranged inside the insulating cylinder, and a first spring is fixedly arranged between the insulating piston and the cavity, a conductive rod is fixedly installed on the side wall of the insulating piston, and a conductive ring matching the conductive rod is fixedly installed inside the insulating cylinder, and an LED prompt light electrically connected to the conductive rod and the conductive ring is fixedly installed on the outer wall of the insulating base.

[0010] Preferably, the optical detection trigger prompt mechanism includes a U-shaped block fixedly arranged inside the cavity, and a spotlight coaxially arranged with the hose connector is fixedly inserted into the side wall of the U-shaped block, an annular groove is opened on the inner wall of the movable sleeve, and a plurality of insulating pads are fixedly arranged at the bottom of the annular groove, and an annular photoresistor is fixedly installed on the ends of the plurality of insulating pads, an electromagnetic switch and a buzzer are fixedly installed on the outer wall of the movable sleeve, the annular photoresistor is electrically connected to the electromagnetic switch, and the electromagnetic switch is electrically connected to the buzzer through a controller.

[0011] Preferably, the negative pressure adsorption mechanism includes a U-shaped cavity opened inside the U-shaped plate, and a plurality of negative pressure suction cups are fixedly connected to the lower cavity wall of the U-shaped cavity, a second normally open solenoid valve is installed on the lower inner side of the suction pipe, a shunt pipe is fixedly connected to the pipe wall of the suction pipe at a position above the second normally open solenoid valve, and a fourth normally closed solenoid valve electrically connected to the second normally open solenoid valve is installed inside the shunt pipe, and a connecting hose is fixedly connected to the pipe mouth of the shunt pipe and the U-shaped cavity.

[0012] Preferably, the voice check prompt mechanism includes an ejection piston slidably arranged inside the strip cavity, and an ejection plate is fixedly installed on the top of the ejection piston, a plurality of control buttons electrically connected to the controller are fixedly installed on the side wall of the ejection plate, a second spring is fixedly installed together with the ejection piston and the strip cavity, a plurality of electromagnetic gate valves corresponding to the control buttons are fixedly plugged at the upper end of the side wall of the strip cavity, a leakage hole is provided on the side wall of the strip cavity at a position on one side of the top of the ejection plate, a pressure relief hole is provided at the lower end of the cavity wall of the strip cavity, and an air pressure valve and a third normally open electromagnetic valve are installed inside the pressure relief hole, and the third normally open electromagnetic valve is electrically connected to the first normally open electromagnetic valve, and each of the control buttons is electrically connected to the voice announcer through the controller.

[0013] Preferably, the auxiliary cooling mechanism includes a cup body placement groove opened on the top of the base, a circular cavity is opened on the inner upper side of the base, and the circular cavity is connected to the second exhaust hole, and a plurality of exhaust holes are opened on the upper cavity wall of the circular cavity at the position around the cup body placement groove.

[0014] Preferably, rubber soft sleeves are fixedly installed at both ends of the interior of the movable sleeve, and the two rubber soft sleeves are both arranged in a cone shape.

[0015] Compared with the existing technology, the advantages of a drilling fluid high temperature and high pressure test protection device are:

[0016] 1. Through the cooperation of the provided base, controller, air pump, air supply mechanism, cavity, hose connector and pressure trigger prompt mechanism, the soft rubber hose used to transport nitrogen can be inspected for damage before conducting the high-temperature and high-pressure filtration loss test of the drilling fluid. In combination with the provided movable sleeve and optical detection trigger prompt mechanism, the soft rubber hose can be inspected for damage using light during the inflation pressure test to prevent the phenomenon of untimely pressure trigger prompt due to insufficient leakage speed caused by the small leakage point on the soft rubber hose. In addition, the optical detection trigger prompt method can make the inflation pressure unnecessary to be too large, avoiding the danger caused by excessive pressure on the soft rubber hose. In addition, the optical detection method can also locate the damaged part. Through the double detection method, the test personnel can be reminded in time and effectively that the soft rubber hose is damaged and leaking, thereby protecting the test personnel.

[0017] 2. Through the cooperation of the suction pipe, U-shaped plate, handle and negative pressure adsorption mechanism, after the high temperature and high pressure test of the drilling fluid is completed, the drilling fluid cup can be adsorbed and taken out by utilizing the negative pressure adsorption force generated by the air pump, that is, there is no need to wear anti-scalding gloves, it is easy to use, and there is no need to contact the drilling fluid cup and the valve stem, which reduces the possibility of scalding and improves the protection effect on personnel.

[0018] 3. Through the cooperation of the set convex column, strip cavity, voice check prompt mechanism and voice announcer, the test personnel can be given voice prompts in stages. After people complete each task, the corresponding voice is turned off and automatically switched to the next voice prompt information, so as to guide the personnel to complete the preparation work of the test and prevent the personnel from missing part of the test preparation work, which will cause danger to the test or affect the normal progress of the test, and indirectly improve the safety of the personnel during the drilling fluid test.

[0019] 4. Through the auxiliary cooling mechanism, the airflow delivered by the air pump can be used to increase the air flow around the drilling fluid cup after the drilling fluid cup is taken out. The fast-flowing air can assist in the rapid cooling of the drilling fluid cup, thereby facilitating the subsequent transfer of the drilling fluid in the drilling fluid cup and shortening the time required for the overall test. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of a drilling fluid high temperature and high pressure filtration loss tester;

[0021] Figure 2 It is a structural schematic diagram of a drilling fluid high temperature and high pressure test protection device provided by the present invention;

[0022] Figure 3 It is a schematic diagram of the internal structure of a cavity of a drilling fluid high temperature and high pressure test protection device provided by the present invention;

[0023] Figure 4 It is a schematic diagram of the internal structure of a movable sleeve of a drilling fluid high temperature and high pressure test protection device provided by the present invention;

[0024] Figure 5 It is a schematic cross-sectional structural diagram of a U-shaped plate of a drilling fluid high temperature and high pressure test protection device provided by the present invention;

[0025] Figure 6 It is a schematic structural diagram of the lower inner side of a strip-shaped cavity of a drilling fluid high temperature and high pressure test protection device provided by the present invention;

[0026] Figure 7 It is a schematic diagram of the structure of the upper inner side of a strip-shaped cavity of a drilling fluid high temperature and high pressure test protection device provided by the present invention;

[0027] Figure 8 The invention provides a drilling fluid high temperature and high pressure test protection device. Figure 3 A magnified view of the structure of part A.

[0028] In the figure: 1 base, 2 air pump, 3 air supply mechanism, 301 air cavity, 302 first exhaust hole, 303 second exhaust hole, 304 third exhaust hole, 305 valve stem vent hole, 306 first normally closed solenoid valve, 307 second normally closed solenoid valve, 308 first normally open solenoid valve, 309 third normally closed solenoid valve, 4 cavity, 5 hose connector, 6 pressure trigger prompt mechanism, 601 insulating cylinder, 602 insulating piston, 603 first spring, 604 conductive rod, 605 conductive ring, 606 LED prompt light, 7 movable sleeve, 8 optical detection trigger prompt mechanism, 801 U-shaped block, 802 spotlight, 803 annular groove, 804 insulating pad, 805 annular photoresistor, 806 electromagnetic switch, 807 buzzer, 9 suction pipe, 10 U-shaped plate, 11 handle, 12 negative pressure adsorption mechanism, 121 U-shaped cavity, 122 negative pressure suction cup, 123 second normally open solenoid valve, 124 shunt pipe, 125 fourth normally closed solenoid valve, 126 connecting hose, 13 boss, 14 strip cavity, 15 voice check prompt mechanism, 151 ejection piston, 152 ejection plate, 153 control button, 154 second spring, 155 solenoid gate valve, 156 leakage hole, 157 pressure relief hole, 158 air pressure valve, 159 third normally open solenoid valve, 16 controller, 17 voice announcer, 18 auxiliary cooling mechanism, 181 cup body placement groove, 182 round cavity, 183 air outlet, 19 rubber soft sleeve. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely 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.

[0030] like Figure 2-Figure 8 As shown, a drilling fluid high temperature and high pressure test protection device comprises a base 1, an air pump 2 is fixedly installed at the bottom of the base 1, and an air supply mechanism 3 is installed together with the output end of the air pump 2 and the base 1, the air supply mechanism 3 comprises an air cavity 301 opened at the lower side of the inside of the base 1, and the output end of the air pump 2 is connected to the air cavity 301, and the cavity wall of the air cavity 301 is opened with a first exhaust hole 302, a second exhaust hole 303, a third exhaust hole 304 and a valve stem vent hole 305, and the first exhaust hole 302 is arranged inside A first normally closed solenoid valve 306 is installed, a second normally closed solenoid valve 307 is installed inside the second exhaust hole 303, a first normally open solenoid valve 308 is installed inside the third exhaust hole 304, a third normally closed solenoid valve 309 is installed inside the valve stem vent hole 305, the cavity 4 is connected to the first exhaust hole 302, the strip cavity 14 is connected to the third exhaust hole 304, and when the air pump 2 is working, air can be sucked in through the suction pipe 9, and the air can be delivered to the inside of the air cavity 301 through the output end.

[0031] A cavity 4 is provided on the upper inner side of the base 1, and the cavity 4 is connected to the air supply mechanism 3. A hose connector 5 is fixedly inserted into the cavity wall of the cavity 4. A pressure-triggered prompt mechanism 6 is installed inside the cavity 4. The pressure-triggered prompt mechanism 6 includes an insulating cylinder 601 fixedly arranged inside the cavity 4, an insulating piston 602 is slidably arranged inside the insulating cylinder 601, and a first spring 603 is fixedly arranged between the insulating piston 602 and the cavity 4. A conductive rod 604 is fixedly installed on the side wall of the insulating piston 602, and a conductive ring 605 matching the conductive rod 604 is fixedly installed inside the insulating cylinder 601. An LED prompt light 606 electrically connected to the conductive rod 604 and the conductive ring 605 is fixedly installed on the outer wall of the insulating base 1. The conductive rod 604 can slide through the conductive ring 605 and can slide in contact with the conductive ring 605. After the conductive rod 604 contacts the conductive ring 605, the connection circuit between the LED prompt light 606 and the controller 16 can be connected.

[0032] The outer side of the base 1 is provided with a movable sleeve 7, and the movable sleeve 7 and the cavity 4 are cooperated to install a light detection trigger prompt mechanism 8, and the light detection trigger prompt mechanism 8 includes a U-shaped block 801 fixedly arranged inside the cavity 4, and the side wall of the U-shaped block 801 is fixedly plugged with a spotlight 802 coaxially arranged with the hose connector 5, the inner wall of the movable sleeve 7 is provided with an annular groove 803, and the bottom of the annular groove 803 is fixedly provided with a plurality of insulating pads 804, and the ends of the plurality of insulating pads 804 are jointly fixedly installed with an annular photoresistor 805, and the outer side wall of the movable sleeve 7 is fixedly installed with an electromagnetic switch 806 and a buzzer 807, the annular photoresistor 805 is electrically connected to the electromagnetic switch 806, and the electromagnetic switch 806 is electrically connected to the buzzer 807 through the controller 16, before the soft rubber tube h is detected, the soft rubber tube h should be kept in a straight state, and when the movable sleeve 7 is moved, the movable sleeve 7 should be moved as slowly and uniformly as possible.

[0033] Rubber soft sleeves 19 are fixedly installed at both ends of the inside of the mobile sleeve 7, and the two rubber soft sleeves 19 are both set in a cone shape. Through the rubber soft sleeves 19, after the mobile sleeve 7 is put on the outside of the soft rubber tube h, the two ends of the mobile sleeve 7 can be shielded from light to prevent external light from affecting the accuracy of the light detection trigger.

[0034] An air suction pipe 9 is fixedly installed at the suction end of the air pump 2, a U-shaped plate 10 is arranged on the outer side of the base 1, and a handle 11 is fixedly installed on the side wall of the U-shaped plate 10, the U-shaped plate 10 and the air suction pipe 9 are fixedly connected to a negative pressure adsorption mechanism 12, the negative pressure adsorption mechanism 12 includes a U-shaped cavity 121 opened inside the U-shaped plate 10, and a plurality of negative pressure suction cups 122 are fixedly plugged into the lower cavity wall of the U-shaped cavity 121, a second normally open solenoid valve 123 is installed on the lower side of the interior of the air suction pipe 9, a shunt pipe 124 is fixedly plugged into the wall of the air suction pipe 9 above the second normally open solenoid valve 123, and the inside of the shunt pipe 124 A fourth normally closed solenoid valve 125 electrically connected to the second normally open solenoid valve 123 is installed, and the pipe mouth of the shunt pipe 124 is fixedly connected to the U-shaped cavity 121 with a connecting hose 126. The design of the U-shaped plate 10 can facilitate the installation of each negative pressure suction cup 122 on the top of the drilling fluid cup. The side wall of the U-shaped cavity 121 should be provided with an air replenishing hole (not shown in the figure), and the air replenishing hole is threadedly connected with a sealing plug (not shown in the figure), which is used to restore the air pressure in the U-shaped cavity 121 after negative pressure adsorption, facilitate the recovery of the air pressure inside the negative pressure suction cup 122, and thus facilitate the separation of the negative pressure suction cup 122 from the drilling fluid cup c.

[0035] The top of the base 1 is integrally formed with a convex column 13, and a strip-shaped cavity 14 is provided inside the convex column 13, and the strip-shaped cavity 14 is connected to the air supply mechanism 3, and a voice check prompt mechanism 15 is provided inside the strip-shaped cavity 14, and the voice check prompt mechanism 15 includes an ejection piston 151 slidably arranged inside the strip-shaped cavity 14, and an ejection plate 152 is fixedly installed on the top of the ejection piston 151, and a plurality of control buttons 153 electrically connected to the controller 16 are fixedly installed on the side wall of the ejection plate 152, and the ejection piston 151 and the strip-shaped cavity 14 are fixedly installed with a second spring 154, and a plurality of corresponding control buttons 153 are fixedly plugged on the upper end of the side wall of the strip-shaped cavity 14. The electromagnetic gate valve 155, the side wall of the strip cavity 14 is located on one side of the top of the ejection plate 152 and is provided with a leakage hole 156, the lower end of the cavity wall of the strip cavity 14 is provided with a pressure relief hole 157, and the interior of the pressure relief hole 157 is equipped with an air pressure valve 158 and a third normally open electromagnetic valve 159, and the third normally open electromagnetic valve 159 is electrically connected to the first normally open electromagnetic valve 308, and each control button 153 is electrically connected to the voice announcer 17 through the controller 16, and each electromagnetic gate valve 155 includes components such as an electromagnet, an iron core, an elastic element and a valve plate. After power is turned on, the electromagnet can drive the valve plate to move and retract by adsorbing the iron core. This is an existing mature technology, so it will not be elaborated here.

[0036] A controller 16 and a voice announcer 17 are fixedly mounted on the outer wall of the base 1. The voice check prompt mechanism 15 is electrically connected to the voice announcer 17 through the controller 16. An auxiliary cooling mechanism 18 connected to the air supply mechanism 3 is arranged on the inner upper side of the base 1. The auxiliary cooling mechanism 18 includes a cup body placement groove 181 opened on the top of the base 1. A circular cavity 182 is opened on the inner upper side of the base 1, and the circular cavity 182 is connected to the second exhaust hole 303. A plurality of air outlet holes 183 are opened on the upper cavity wall of the circular cavity 182 at a position around the cup body placement groove 181. A storage hole matching the valve stem is reserved at the bottom of the cup body placement groove 181 (not shown in the figure), ensuring that the valve stem e under the cup body can be received in the storage hole, thereby ensuring the stable placement of the cup body.

[0037] The operating principle of the present invention is described as follows: the power line of the controller 16 is connected to the power line of the high temperature and high pressure filtration loss tester J, and then the high temperature and high pressure filtration loss tester J is started. At this time, the controller 16 is started synchronously;

[0038] After the controller 16 is started, the air pump 2 and the voice announcer 17 are immediately started. At this time, the air suction end of the air pump 2 sucks air through the air suction pipe 9 and delivers it to the inside of the air cavity 301. Then the air enters the inside of the strip cavity 14 through the third exhaust hole 304. At this time, under the action of air pressure, the ejection piston 151 inside the strip cavity 14 can be pushed upward, thereby driving the ejection plate 152 to move upward. After the ejection plate 152 hits the gate of the electromagnetic gate valve 155 at the bottom, it will stop moving immediately. When the voice announcer 17 is working, it will first play a voice message to remind the test personnel to check the soft rubber hose h for conveying nitrogen. When the personnel hear the voice message, they can immediately connect the joint of the soft rubber hose h to the hose connector 5, and then press the hose detection button on the controller 16. At this time, the controller 16 will immediately control the first normally open solenoid valve 308 inside the third exhaust hole 304, the third normally open solenoid valve 159 inside the pressure relief hole 157 and the first normally open solenoid valve 159 inside the first exhaust hole 302. The normally closed solenoid valve 306 is energized for 5 seconds at a time. At this time, the air in the air cavity 301 enters the cavity 4 through the first exhaust hole 302. Subsequently, the air enters the soft rubber tube h through the rubber tube connector 5 on the cavity 4. Under the action of air pressure, the soft rubber tube h expands and bulges. At the same time, under the action of air pressure, the insulating piston 602 can be pushed to drive the conductive rod 604 to move, and after the 5 seconds of the timed energization, the conductive rod 604 and the conductive ring 605 are in sliding contact. At this time, the connection circuits of the conductive rod 604, the conductive ring 605 and the LED prompt light 606 are connected, so that the LED prompt light 606 can be turned on. After the timing is over, if there is a leak in the soft rubber tube h, as the air in the soft rubber tube h leaks out, under the action of the first spring 603, the insulating piston 602 can be pushed back, thereby driving the conductive rod 604 to gradually separate from the conductive ring 605. After the test personnel observe that the LED prompt light 606 is off, it indicates that there is a risk of air leakage in the soft rubber tube h.

[0039] When the hose detection button on the controller 16 is pressed, the controller 16 will immediately control the spotlight 802 to work. At this time, the light emitted by the spotlight 802 will irradiate into the inside of the soft rubber tube h. Then, the tester holds the mobile sleeve 7 and moves it from one end to the other end along the soft rubber tube h. Since the soft rubber tube h has been inflated, a small leak point will also cause light leakage. When the mobile sleeve 7 moves to this point, light is irradiated onto the annular photoresistor 805, which can reduce the resistance value of the annular photoresistor 805 itself. At this time, The overall resistance of the connection loop of the electromagnetic switch 806 electrically connected to the annular photoresistor 805 is reduced, that is, the current passing into the electromagnetic switch 806 is increased, so that the electromagnetic switch 806 itself can generate sufficient magnetic attraction to attract its own moving contact, and the controller 16 will immediately control the buzzer 807 to beep after receiving the electrical signal of the electromagnetic switch 806 being closed. At this time, it indicates that there is a leak point here, which can prevent the air pressure detection from not finding the leak in time due to the slow leak speed, and can locate the damaged part in time;

[0040] After the two soft rubber tubes h have been inspected in sequence and no damage is found, the tester presses the corresponding control button 153 through the leakage hole 156. After receiving the electrical signal from the control button 153, the controller 16 immediately controls the corresponding electromagnetic gate valve 155 to be energized. Since the restriction of the electromagnetic gate valve 155 on the ejection plate 152 disappears, the ejection piston 151 can drive the ejection plate 152 to continue to move upward under the action of air pressure until the ejection plate 152 is blocked by the electromagnetic gate valve 155 again. After the tester presses the control button 153, the controller 16 controls the voice announcer 17 to switch to a voice message reminding the tester to perform an on / off test on the upper valve stem d and the lower valve stem e. When the tester hears the voice message, Press the detection button of the upper valve stem d and the lower valve stem e on the controller 16. At this time, the controller 16 will immediately control the first normally open solenoid valve 308 in the third exhaust hole 304, the third normally open solenoid valve 159 in the pressure relief hole 157 and the third normally closed solenoid valve 309 in the valve stem vent hole 305 to be energized and work. At this time, the personnel align one end of the upper valve stem d and the lower valve stem e with the valve stem vent hole 305 in turn, and check whether there is airflow rushing out at the other end of the upper valve stem d and the lower valve stem e. It can be known whether the upper valve stem d and the lower valve stem e are blocked, and because the diameter of the valve stem vent hole 305 is small, the velocity of the ejected air flow is fast, which can push out and clean the particulate impurities that may exist in the upper valve stem d and the lower valve stem e. After detecting the upper valve stem d and the lower valve stem e, try The test personnel presses the control button 153 at that position again through the leakage hole 156. Under the control of the controller 16, the ejector plate 152 continues to move upward until it is blocked by the electromagnetic gate valve 155 again, and the controller 16 controls the voice announcer 17 to switch to a voice prompt message to remind the personnel to check whether the upper valve stem d and the lower valve stem e are installed in place and whether the closure is tight. Then, the personnel can assemble the upper valve stem d and the lower valve stem e, the sealing ring, the filter paper, the cup cover, and the drilling fluid cup c. During the assembly process, the drilling fluid is quantitatively loaded into the drilling fluid cup c. After the assembly is completed, the drilling fluid cup c is placed in the heating cover box b, and the receiver assembly f is installed. Then, the corresponding control button 153 is pressed again through the leakage hole 156. At this time, the ejector plate 15 2 continues to move upward until it is blocked by the electromagnetic gate valve 155 again, and the controller 16 will control the voice announcer 17 to switch to a voice prompt message to remind the personnel to check whether the connection between the drilling fluid cup c and the receiver assembly f and the heating cover box b is stable and whether the thermometer is stably installed. After the inspection is completed, continue to press the control button 153 through the leakage hole 156, the ejection plate 152 continues to move upward, and the voice announcer 17 will switch to a voice prompt message to remind the personnel to check whether the connection of the soft rubber tube h is stable. At this time, the personnel connect the two soft rubber tubes h to the corresponding interfaces in turn, and after the inspection is completed, press the last control button 153 again. At this time, the controller 16 controls the voice announcer 17 to stop working. Under the action of the second spring 154,The ejection piston 151 can be pulled back to reset;

[0041] Afterwards, the personnel can carry out the high-temperature and high-pressure test of the drilling fluid. After the test, the U-shaped plate 10 can be picked up by holding the handle 11, and the U-shaped plate 10 can be inserted horizontally to the top of the drilling fluid cup c, and each negative pressure suction cup 122 can be against the top of the drilling fluid cup c. Then, the tester presses the take-out button on the controller 16. At this time, the controller 16 will immediately control the fourth normally closed solenoid valve 125 in the shunt pipe 124 and the second normally open solenoid valve 123 in the suction pipe 9 to be energized for 5 seconds. At this time, the suction end of the air pump 2 can suck out the air inside the U-shaped cavity 121 through the suction pipe 9, the shunt pipe 124 and the connecting hose 126, and form a negative pressure inside each negative pressure suction cup 122. Under the action of the internal and external pressure difference, each negative pressure suction The plate 122 sucks the cup cover of the drilling fluid cup c, and then the drilling fluid cup c can be taken out by the handle 11 and the U-shaped plate 10, and the drilling fluid cup c is placed inside the cup body placement groove 181 on the base 1. When the second normally open solenoid valve 123 and the fourth normally closed solenoid valve 125 are powered on at a fixed time, the second normally closed solenoid valve 307 inside the second exhaust hole 303 and the first normally open solenoid valve 308 inside the third exhaust hole 304 are synchronously controlled to be powered on. At this time, the air delivered by the air pump 2 will be delivered to the inside of the circular cavity 182 through the air cavity 301 and the second exhaust hole 303, and finally, it will be discharged through multiple air outlet holes 183. The airflow discharged from the air outlet holes 183 can quickly take away the heat of the drilling fluid cup c, thereby assisting the drilling fluid cup c to cool down quickly.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A drilling fluid high temperature and high pressure test protection device, comprising a base (1), It is characterized in that An air pump (2) is fixedly mounted on the bottom of the base (1), and an air supply mechanism (3) is installed on the output end of the air pump (2) and the base (1); a cavity (4) is opened on the upper side of the interior of the base (1), and the cavity (4) is connected to the air supply mechanism (3); a hose connector (5) is fixedly inserted into the cavity wall of the cavity (4); a pressure trigger prompt mechanism (6) is installed inside the cavity (4); a movable sleeve (7) is sleeved on the outer side of the base (1); and a light detection trigger prompt mechanism (8) is installed in cooperation with the movable sleeve (7) and the cavity (4); An air intake pipe (9) is fixedly mounted on the suction end of the air pump (2); a U-shaped plate (10) is arranged on the outer side of the base (1), and a handle (11) is fixedly mounted on the side wall of the U-shaped plate (10); the U-shaped plate (10) and the air intake pipe (9) are fixedly connected to a negative pressure adsorption mechanism (12); a convex column (13) is integrally formed on the top of the base (1), and a strip-shaped cavity (14) is provided inside the convex column (13), and the strip-shaped cavity (14) is connected to the air supply mechanism (3); a voice check prompt mechanism (15) is arranged inside the strip-shaped cavity (14); a controller (16) and a voice announcer (17) are fixedly mounted on the outer side wall of the base (1); the voice check prompt mechanism (15) is electrically connected to the voice announcer (17) via the controller (16); and an auxiliary cooling mechanism (18) connected to the air supply mechanism (3) is arranged on the upper side of the inner part of the base (1); By means of the cooperation of the provided base (1), the controller (16), the air pump (2), the air supply mechanism (3), the cavity (4), the hose connector (5) and the pressure trigger prompt mechanism (6), a soft hose used for conveying nitrogen can be inspected for damage before a high-temperature and high-pressure filtration loss test of the drilling fluid is carried out.

2. A drilling fluid high temperature and high pressure test protection device according to claim 1, It is characterized in that The air supply mechanism (3) comprises an air cavity (301) opened at the lower side of the interior of the base (1), and the output end of the air pump (2) is connected to the air cavity (301); a first exhaust hole (302), a second exhaust hole (303), a third exhaust hole (304) and a valve stem vent hole (305) are opened on the cavity wall of the air cavity (301); a first normally closed solenoid valve (306) is installed inside the first exhaust hole (302); a second normally closed solenoid valve (307) is installed inside the second exhaust hole (303); a first normally open solenoid valve (308) is installed inside the third exhaust hole (304); a third normally closed solenoid valve (309) is installed inside the valve stem vent hole (305); the cavity (4) is connected to the first exhaust hole (302); and the strip-shaped cavity (14) is connected to the third exhaust hole (304).

3. A drilling fluid high temperature and high pressure test protection device according to claim 1, It is characterized in that The pressure-triggered prompt mechanism (6) comprises an insulating cylinder (601) fixedly arranged inside the cavity (4); an insulating piston (602) is slidably arranged inside the insulating cylinder (601); a first spring (603) is fixedly arranged between the insulating piston (602) and the cavity (4); a conductive rod (604) is fixedly installed on the side wall of the insulating piston (602); a conductive ring (605) matching the conductive rod (604) is fixedly installed inside the insulating cylinder (601); and an LED prompt light (606) electrically connected to the conductive rod (604) and the conductive ring (605) is fixedly installed on the outer side wall of the base (1).

4. A drilling fluid high temperature and high pressure test protection device according to claim 1, It is characterized in that The optical detection trigger prompt mechanism (8) comprises a U-shaped block (801) fixedly arranged inside the cavity (4), and a spotlight (802) coaxially arranged with the hose connector (5) is fixedly plugged into the side wall of the U-shaped block (801); an annular groove (803) is provided on the inner wall of the movable sleeve (7), and a plurality of insulating pads (804) are fixedly arranged at the bottom of the annular groove (803); an annular photoresistor (805) is fixedly installed at the ends of the plurality of insulating pads (804); an electromagnetic switch (806) and a buzzer (807) are fixedly installed on the outer wall of the movable sleeve (7); the annular photoresistor (805) is electrically connected to the electromagnetic switch (806), and the electromagnetic switch (806) is electrically connected to the buzzer (807) via a controller (16).

5. A drilling fluid high temperature and high pressure test protection device according to claim 1, It is characterized in that The negative pressure adsorption mechanism (12) comprises a U-shaped cavity (121) opened inside the U-shaped plate (10), and a plurality of negative pressure suction cups (122) are fixedly plugged into the lower cavity wall of the U-shaped cavity (121), a second normally open solenoid valve (123) is installed on the lower inner side of the suction pipe (9), a shunt pipe (124) is fixedly plugged into the wall of the suction pipe (9) at a position above the second normally open solenoid valve (123), and a fourth normally closed solenoid valve (125) electrically connected to the second normally open solenoid valve (123) is installed inside the shunt pipe (124), and a connecting hose (126) is fixedly connected to the pipe mouth of the shunt pipe (124) and the U-shaped cavity (121).

6. A drilling fluid high temperature and high pressure test protection device according to claim 2, It is characterized in that The voice check prompt mechanism (15) comprises an ejection piston (151) slidably arranged inside the strip-shaped cavity (14), and an ejection plate (152) is fixedly mounted on the top of the ejection piston (151), and a plurality of control buttons (153) electrically connected to the controller (16) are fixedly mounted on the side wall of the ejection plate (152), and a second spring (154) is fixedly mounted on the ejection piston (151) and the strip-shaped cavity (14), and a plurality of electrical contacts (153) corresponding to the control buttons (153) are fixedly plugged into the upper end of the side wall of the strip-shaped cavity (14). A magnetic gate valve (155), a leakage hole (156) is provided on the side wall of the strip-shaped cavity (14) at a position on one side of the top of the ejection plate (152), a pressure relief hole (157) is provided on the lower end of the cavity wall of the strip-shaped cavity (14), and an air pressure valve (158) and a third normally open solenoid valve (159) are installed inside the pressure relief hole (157), and the third normally open solenoid valve (159) is electrically connected to the first normally open solenoid valve (308), and each of the control buttons (153) is electrically connected to the voice announcer (17) through the controller (16).

7. A drilling fluid high temperature and high pressure test protection device according to claim 2, It is characterized in that The auxiliary cooling mechanism (18) comprises a cup body placement groove (181) opened on the top of the base (1); a circular cavity (182) is opened on the upper side of the interior of the base (1); the circular cavity (182) is connected to the second exhaust hole (303); and a plurality of exhaust holes (183) are opened on the upper cavity wall of the circular cavity (182) at positions around the cup body placement groove (181).

8. A drilling fluid high temperature and high pressure test protection device according to claim 1, It is characterized in that Rubber soft sleeves (19) are fixedly mounted at both ends of the interior of the movable sleeve (7), and the two rubber soft sleeves (19) are both arranged in a conical shape.

Images