CN214200204U - Drilling mud performance multi-parameter measuring device - Google Patents

Abstract

The utility model discloses a drilling mud performance multi-parameter measurement device. The measuring device includes: the device comprises a mud tank, and a filtration loss measuring module, a pH value measuring module, a viscosity density measuring module and a sand content measuring module which are communicated with the mud tank; the filtration loss measuring module comprises an air source, a filtration loss valve assembly, a slurry barrel, a filtering assembly, a first measuring barrel and a first light sensor; the pH value measuring module comprises a pH value sensor; the viscosity density measuring module comprises a timing sensor, a viscosity density valve assembly, a measuring funnel and a weighing sensor; the sand content measuring module comprises a constant volume slurry supply device, a sand washing cylinder, a filter screen assembly, a second measuring cylinder and a second light sensor. The utility model discloses can realize mud performance multi-parameter allies oneself with surveys, can reduce the measurement process, improve measurement accuracy, speed, improve and measure operating condition.

Description

Drilling mud performance multi-parameter measuring device

Technical Field

The utility model relates to a probing (well) equipment and mud performance measurement field especially relate to a probing mud performance multi-parameter measurement device.

Background

The mud is the 'blood' of drilling and plays an indispensable role, and the quality of the mud directly influences the safety in the drilled hole. At present, basic parameters of drilling mud performance are manually measured one by one for each parameter, and the measurement method has a plurality of defects, such as: the manual measurement process is complicated, the measurement precision is not high, the manual observation reading error in the measurement process is large, the hand skin which is easy to corrode is manually measured, the operation method for measuring the slurry performance by field workers is difficult to master, the measurement process time is long, and the like.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide a drilling mud performance multi-parameter measurement device to realize the mud performance multi-parameter joint measurement, reduce the measurement processes, improve the measurement accuracy and speed, and improve the measurement working conditions.

In order to achieve the above object, the utility model provides a following scheme:

a drilling mud performance multiparameter measurement device comprising: the device comprises a mud tank, and a filtration loss measuring module, a pH value measuring module, a viscosity density measuring module and a sand content measuring module which are communicated with the mud tank;

the filtration loss measuring module comprises an air source, a filtration loss valve assembly, a slurry barrel, a filtering assembly, a first measuring barrel and a first light sensor; the upper end of the mud barrel is respectively communicated with the gas source and the mud tank through the filter loss valve assembly; the lower end of the mud cylinder is communicated with the first measuring cylinder; the filter assembly is positioned inside the mud bucket; the first light sensor is positioned on one side of the first measuring cylinder;

the pH value measuring module comprises a pH value sensor; the pH value sensor is arranged inside the mud tank;

the viscosity density measuring module comprises a timing sensor, a viscosity density valve assembly, a measuring funnel and a weighing sensor; the measuring funnel is communicated with the mud tank through the viscosity density valve assembly; the timing sensor is used for recording the time taken for the preset amount of mud to flow out of the measuring funnel; the weighing sensor is arranged on the measuring funnel; the weighing sensor is used for weighing the slurry flowing to the measuring funnel;

the sand content measuring module comprises a constant-volume slurry supply device, a sand washing cylinder, a filter screen assembly, a second measuring cylinder and a second light sensor; the constant-volume slurry supply device is communicated with the slurry tank; the upper end of the sand washing barrel is connected with the constant-volume slurry supply device; the lower end of the sand washing cylinder is connected with the second measuring cylinder; the filter screen assembly is arranged in the sand washing barrel and forms a set included angle with the horizontal plane; the second light sensor is positioned on one side of the second measuring cylinder.

Optionally, the fluid loss measuring module further comprises a first spraying assembly;

the first spraying assembly comprises a first clear water electromagnetic valve and a first nozzle; the first nozzle is arranged inside the mud barrel; the first clear water electromagnetic valve is arranged on a pipeline for communicating the first nozzle with clear water;

the sand content measuring module further comprises a second spraying assembly;

the second spraying assembly comprises a second clean water electromagnetic valve, a second nozzle and a third nozzle; the second nozzle and the third nozzle are both communicated with the clean water injection port through the second clean water electromagnetic valve; the second nozzle is arranged in the sand washing barrel and is positioned above the filter screen assembly; the third nozzle is arranged in the sand washing barrel and is positioned below the filter screen assembly;

the pH value measuring module further comprises a third clear water electromagnetic valve arranged on a pipeline for communicating the mud tank with clear water.

Optionally, the fluid loss measuring module further includes a first motor; the first motor is arranged at the upper end of the mud barrel; the first motor is connected with the filtering component through a motor shaft; the first motor is used for driving the filter assembly to move in the mud barrel;

the sand content measuring module also comprises a second motor; the second motor is arranged at the upper end of the sand washing barrel; the second motor is connected with the filter screen assembly through a motor shaft; the second motor is used for driving the filter screen assembly to move in the sand washing barrel.

Optionally, the fluid loss measuring module further includes a first liquid level sensor; the first liquid level sensor is arranged at the upper end of the mud barrel; the viscosity density measurement module further comprises a second liquid level sensor; the second liquid level sensor is positioned above the funnel opening of the measuring funnel.

Optionally, the fluid loss valve assembly includes a pressure reducing valve, an air inlet solenoid valve, an air outlet solenoid valve and a first slurry inlet electric ball valve; the gas source is communicated with the mud barrel through the pressure reducing valve and the gas inlet electromagnetic valve in sequence; the mud cylinder is connected with an exhaust port through the air outlet electromagnetic valve; the mud cylinder is communicated with the mud tank through the first mud inlet electric ball valve;

the viscosity density valve assembly comprises a second slurry inlet electric ball valve and a clean water electric ball valve; the second slurry inlet electric ball valve and the clean water electric ball valve are both positioned above the funnel opening of the measuring funnel; the measuring funnel is communicated with the mud tank through the second slurry inlet electric ball valve.

Optionally, the constant volume slurry supply device includes: a third liquid level sensor, a mud cup and a third electric ball valve for feeding mud; the mud tank is communicated with the sand washing barrel sequentially through the third liquid level sensor, the mud cup and the third slurry inlet electric ball valve.

Optionally, the filter assembly includes: the first check ring, the filter cloth, the first filter screen and the supporting plate; the supporting plate is provided with the first filter screen; the first filter screen is provided with the filter cloth; the filter cloth is fixed on the supporting plate through the first retainer ring.

Optionally, the screen assembly comprises: the second check ring, the second filter screen and the filter screen frame; the plane where the filter screen frame is located forms an included angle of 30 degrees with the horizontal plane; the second filter screen is arranged on the filter screen frame; the second retainer is used for fixing the second filter screen.

Optionally, the bottom of the first measuring cylinder is communicated with a sewage draining outlet through a first sewage draining electric ball valve; the bottom of the measuring funnel is communicated with the sewage draining port through a second sewage draining electric ball valve; the bottom of the second measuring cylinder is communicated with the sewage draining port through a third sewage draining electric ball valve.

Optionally, the drilling mud performance multi-parameter measuring device further comprises a host and a display control screen; the filtration loss measuring module, the pH value measuring module, the viscosity density measuring module, the sand content measuring module and the display control screen are all electrically connected with the host.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides a drilling mud performance multi-parameter measurement device, this measuring device include mud jar and with the filtration loss measurement module, pH value measurement module, viscosity density measurement module and the sand content measurement module of mud jar intercommunication. The filtration loss measuring module comprises an air source, a filtration loss valve assembly, a slurry barrel, a filtering assembly, a first measuring barrel and a first light sensor; the pH value measuring module comprises a pH value sensor; the viscosity density measuring module comprises a timing sensor, a viscosity density valve assembly, a measuring funnel and a weighing sensor; the sand content measuring module comprises a constant volume slurry supply device, a sand washing cylinder, a filter screen assembly, a second measuring cylinder and a second light sensor. The utility model discloses a set up filtration loss measurement module, pH value measurement module, viscosity density measurement module and sand content measurement module, realized a plurality of parameter measurement such as drilling mud filtration loss, pH value, viscosity, density, sand content, avoided the manual work to measure one by one to every parameter, reduced measurement process, improved measurement accuracy, speed, improved measurement operating condition.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a schematic structural view of a drilling mud performance multi-parameter measurement device according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a filter assembly according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a screen assembly according to an embodiment of the present invention;

fig. 4 is an automatic measurement flowchart of the drilling mud performance multi-parameter measurement device according to the embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

Fig. 1 is a schematic structural diagram of a drilling mud performance multi-parameter measuring device according to an embodiment of the present invention.

Referring to fig. 1, the drilling mud performance multiparameter measuring device of the present embodiment includes: the mud tank comprises a mud tank 1, and a filtration loss measuring module A, pH value measuring module B, a viscosity density measuring module C and a sand content measuring module D which are communicated with the mud tank 1.

The filter loss measuring module A comprises an air source A1, a filter loss valve assembly, a mud barrel A10, a filter assembly A11, a first measuring barrel A12 and a first light sensor A13; the upper end of the mud drum A10 is respectively communicated with the air source A1 and the mud tank 1 through the filter loss valve component; the lower end of the mud cylinder A10 is communicated with the first measuring cylinder A12; the filter assembly A11 is located inside the mud bucket A10; the first light sensor A13 is located on one side of the first cylinder A12. During measurement, the control valves in the filter loss valve assembly are controlled to control the slurry injection capacity, air flow, air pressure, water quantity and pollution discharge effect, the air source A1 provides an air source for the slurry cylinder A10, and the first measuring cylinder A12 and the first light sensor A13 are matched to measure the filter loss of the slurry.

The pH value measuring module B comprises a pH value sensor B1 for measuring the pH value index of the slurry; the pH value sensor B1 is arranged in the mud tank 1, and the pH value can be measured when mud enters the tank body.

The viscosity density measurement module C comprises a timing sensor C1, a viscosity density valve assembly, a measurement funnel C5 and a load cell C6; the measuring funnel C5 is communicated with the mud tank 1 through the viscosity density valve assembly; the timing sensor C1 is used to record the time taken for a preset amount of mud to flow out of the measuring funnel C5; the preset amount may be 500 ml; the load cell C6 is disposed on the measuring funnel C5; the load cell C6 is used to weigh the mud flowing to the measuring funnel C5. During measurement, after 700mL of slurry is injected into the measuring funnel C5, the weight sensor C6 measures the mass of the slurry with the same volume, and the density is calculated; and when the sewage discharge is started, the timing sensor C1 starts to time, and the time for the hopper C5 to flow 500mL of slurry is measured as the slurry viscosity value.

The sand content measuring module D comprises a constant-volume slurry supply device, a sand washing cylinder D5, a filter screen assembly D9, a second measuring cylinder D10 and a second light sensor D11; the constant-volume slurry supply device is communicated with the slurry tank 1; the upper end of the sand washing cylinder D5 is connected with the constant-capacity slurry supply device; the lower end of the sand washing cylinder D5 is connected with the second measuring cylinder D10; the filter screen assembly D9 is arranged inside the sand washing cylinder D5 and forms a set included angle with the horizontal plane; the second light sensor D11 is positioned at one side of the second cylinder D10; the constant-volume slurry supply device is used for providing constant-volume slurry for the sand washing cylinder D5. During measurement, a fixed amount of 100mL of slurry was injected into the sand washing cylinder D5, the screen assembly D9 was at the bottom dead center, sand having a particle size larger than a target value was deposited on the upper surface of the screen assembly D9, and after the sand on the upper surface of the screen assembly D9 was deposited in the second measuring cylinder D10, the sand content value was measured by the second light sensor D11.

As an optional embodiment, the fluid loss measuring module a further comprises a first spraying component; the first spraying assembly comprises a first clear water solenoid valve A9 and a first nozzle A8; the first nozzle A8 is disposed inside the mud drum a 10; the first clear water electromagnetic valve A9 is arranged on a pipeline for communicating the first nozzle A8 with clear water.

The sand content measuring module D also comprises a second spraying assembly; the second spraying assembly comprises a second clear water solenoid valve D7, a second nozzle D6 and a third nozzle D8; the second nozzle D6 and the third nozzle D8 are both communicated with a clean water injection port through the second clean water electromagnetic valve D7; the second nozzle D6 is disposed inside the sand wash bowl D5 and above the screen assembly D9; the third nozzle D8 is disposed inside the sand wash bowl D5 and below the screen assembly D9.

The pH value measuring module B also comprises a third clear water electromagnetic valve B2 arranged on a pipeline for communicating the mud tank 1 with clear water, and when the pH value is measured, the pH value sensor B1 is cleaned and restored.

The arrangement of the first spraying assembly, the second spraying assembly and the third clean water electromagnetic valve B2 can avoid the mud remaining in the measuring container to influence the next measurement, and the accuracy of the measurement can be further improved.

As an optional implementation, the fluid loss measuring module a further includes a first motor a 5; the first motor A5 is arranged at the upper end of the mud drum A10; the lower end of a motor shaft d1 of the first motor A5 is connected with the filter assembly A11; the first motor A5 is used to drive the filter assembly A11 to move in the mud drum A10.

The sand content measuring module D also comprises a second motor D4; the second motor D4 is arranged at the upper end of the sand washing barrel D5; the lower end of a motor shaft D2 of the second motor D4 is connected with the filter screen assembly D9; the second motor D4 is used for driving the screen assembly D9 to move in the sand washing cylinder D5. The first motor a5 and the second motor D4 may be linear modular motors.

As an optional implementation, the fluid loss measuring module a further comprises a first fluid level sensor a 3; the first liquid level sensor A3 is arranged at the upper end of the mud bucket A10; the viscosity density measurement module C further comprises a second liquid level sensor C3; the second level sensor C3 is located above the mouth of the measuring funnel C5.

As an alternative embodiment, the fluid loss valve assembly comprises a pressure reducing valve a2, an air inlet solenoid valve a4, an air outlet solenoid valve a7 and a first slurry inlet electric ball valve a 6; the air source A1 is communicated with the mud barrel A10 through the pressure reducing valve A2 and the air inlet solenoid valve A4 in sequence; the mud cylinder A10 is connected with an exhaust port through the air outlet electromagnetic valve A7; the mud cylinder A10 is communicated with the mud tank 1 through the first mud inlet electric ball valve A6, and the mud tank 1 is communicated with a first mud inlet electric ball valve A6 through a mud inlet pipe.

The viscosity density valve assembly comprises a second slurry inlet electric ball valve C2 and a clean water electric ball valve C4; the second slurry inlet electric ball valve C2 and the clean water electric ball valve C4 are both positioned above the funnel opening of the measuring funnel C5, and the second slurry inlet electric ball valve C2 and the clean water electric ball valve C4 are not connected with the measuring funnel C5; the measuring funnel C5 is communicated with the mud tank 1 through the second mud inlet electric ball valve C2, and the mud tank 1 is communicated with a second mud inlet electric ball valve C2 through a mud inlet pipe.

As an alternative embodiment, the constant volume slurry supply device includes: a third liquid level sensor D1, a mud cup D2 and a third slurry inlet electric ball valve D3; the mud tank 1 is communicated with the sand washing barrel D5 sequentially through the third liquid level sensor D1, the mud cup D2 and the third slurry inlet electric ball valve D3, and the mud tank 1 is communicated with the third liquid level sensor D1 through a slurry inlet pipe.

As an alternative embodiment, as shown in fig. 2, the filter assembly a11 is connected to the motor shaft d1 and the filtrate pipe d3 of the first motor a5, respectively, and the filter assembly a11 includes: a first retainer ring 101, filter cloth 102, a first filter screen 103 and a support plate 104; the first filter screen 103 is arranged on the supporting plate 104; the first filter screen 103 is provided with the filter cloth 102; the filter cloth 102 is fixed on the supporting plate 104 through the first retainer ring 101; the supporting plate 104 is further provided with a first annular sealing line 105. The first filter screen 103 can be a stainless steel 50-mesh filter screen, and the filter cloth 102 can be made of a high molecular resin material, is consistent with a conventional filter paper net structure, replaces the function of filter paper, and can be repeatedly used for hundreds of times.

As shown in fig. 3, the screen assembly D9 includes: a second baffle ring 201, a second screen 202 and a screen frame 203; the plane where the screen frame 203 is located forms an included angle of 30 degrees with the horizontal plane, that is, the screen assembly D9 forms an included angle of 30 degrees with the motor shaft D2 of the second motor D4; the second filter screen 202 is arranged on the filter screen frame 203; the second retainer ring 201 is used for fixing the second filter screen 202; a second annular sealing line 204 is also provided on the strainer holder 203. The second screen 202 may be a 200 mesh stainless steel screen.

As an alternative embodiment, the fluid loss valve assembly further comprises a first blowdown motorized ball valve a14, the viscosity density valve assembly further comprises a second blowdown motorized ball valve C7, and the sand content measurement module D further comprises a third blowdown motorized ball valve D12. The bottom of the first measuring cylinder A12 is communicated with a sewage outlet through a first sewage electric ball valve A14; the bottom of the measuring funnel C5 is communicated with the sewage outlet through a second sewage electric ball valve C7; the bottom of the second measuring cylinder D10 is communicated with the sewage outlet through a third sewage electric ball valve D12.

As an alternative embodiment, the bottom of the mud tank 1 is also communicated with the sewage draining outlet through an electric ball valve.

As an optional implementation mode, a clean water booster pump 2 is arranged at the clean water injection position, the clean water is boosted to 0.5MPa and sent into each module to automatically clean each measuring system, and mud can be prevented from remaining in the measuring container to influence the next measurement.

As an alternative embodiment, the drilling mud performance multiparameter measurement device further comprises an online sampling assembly; the online sampling assembly comprises a hose 301 with a connector, a sealing cover 302 and an electric ball valve, and the electric ball valve is communicated with the mud tank 1 through the sealing cover 302 and the hose 301 with the connector so as to realize online sampling measurement in the mud flowing process; when in manual sampling, the slurry is injected through a manual sampling slurry injection port, and a 60-mesh screen 5 is arranged in the manual sampling slurry injection port.

As an alternative embodiment, the upper part of the mud cylinder a10 is a cylinder, the lower part is a 60 ° cone, the upper part of the mud cylinder a10 is connected with the fluid loss valve assembly, the first liquid level sensor A3 and the first motor a5, the lower part is connected with a filtrate pipe, the filtrate pipe is inserted into the upper part of the first cylinder a12, the lower part of the first cylinder a12 is connected with the first electric drain ball valve a14, and the first light sensor a13 is arranged at one side of the first cylinder a 12; the lower end of the motor shaft of the first motor A5 is connected with the filter assembly A11, and can drive the filter assembly A11 to move up and down at the conical part of the mud cylinder A10.

As an alternative embodiment, the filter assembly A11 is in a sealing state when being positioned at the lower limit of the conical body of the mud bucket A10; moving up to the upper limit, the first annular sealing line of the filter assembly a11 is opened and the first nozzle A8 starts to clean the mud cylinder a10, the filter cloth 102 and the first screen 103. When the filtration loss is measured, the filter component A11 is located at the lower limit position, 240mL of quantitative slurry is placed in the slurry cylinder A10, the quantitative slurry can be achieved through the first liquid level sensor A3 at the upper end of the slurry cylinder A10, after the quantitative slurry is injected into the slurry cylinder A10, the air source A1 channel valve of the slurry cylinder A10 is opened, other control valves are all in the closed and sealed states, the slurry cylinder A10 is inflated, the pressure is kept at 0.69MPa, 30 minutes later, the first light sensor A13 measures the amount of the filter liquor of the first measuring cylinder A12, then the air source A1 channel valve is closed, other control valves are opened, the filter component A11 moves upwards to enter a clean water flushing state, after 2 minutes of flushing, all valves are closed, and the filter component A11 moves downwards to the lower dead center position.

As an alternative embodiment, the measuring funnel C5 is a conical container with standard dimensions: the inner diameter of the upper port is 150mm, the inner diameter of the lower port is 4.7mm, the taper is 1:2.25, the length of the funnel pipe is 100mm, the second slurry inlet electric ball valve C2, the clean water electric ball valve C4 and the second liquid level sensor C3 are arranged at the upper port, but are not in contact with the measuring funnel C5, and the lower port of the funnel is connected with the second pollution discharge electric ball valve C7. The load cell C6 is connected to the funnel handle 6 of the measuring funnel C5, and the load cell C6 can be fixed on the outer frame cantilever. During measurement, after 700mL of quantitative slurry is injected into the measuring funnel C5 through the second liquid level sensor C3, the weighing sensor C6 measures the same volume mass (the calculated density). When the second pollution discharge electric ball valve C7 is opened, the timing sensor C1 starts to time, and the time recorded by the timing sensor C1 corresponding to the 500mL mud flowing out of the measuring funnel C5 measured by the second liquid level sensor C3 is the mud viscosity value (the unit is expressed by 'seconds').

As an alternative embodiment, the third liquid level sensor D1 in the sand content measuring module D is connected with the upper end of a mud cup D2, 100mL of quantitative mud is injected, a third electric mud feeding ball valve D3 is started, and the mud is injected into a sand washing cylinder D5. A motor shaft of the second motor D4 moves the filter screen component D9 to a bottom dead center, clear water is injected into the second nozzle D6 and the third nozzle D8 which are arranged at the upper part and the lower part of the filter screen component D9 to dilute cleaning slurry, so that sand with the particle size smaller than 200 meshes passes through the filter screen component D9, the second measuring cylinder D10 and the third pollution discharge electric ball valve D12 in an open state and is discharged from a pollution discharge outlet, the sand with the particle size larger than 200 meshes is deposited on an inclined plane at the upper end of the filter screen component D9, after the deposited sand is cleaned, the third pollution discharge electric ball valve D12 at the lower part of the second measuring cylinder D10 is closed, the second motor D4 moves the filter screen component D9 to an upper limit position, a sealing line of the inclined plane filter screen component D9 is opened, at the moment, the sand deposited on the inclined plane at the upper end of the filter screen component D9 enters the second measuring cylinder D10 to be deposited under the flushing of the clear water nozzle, and the sand content value is measured by a second optical sensor D11.

As an alternative embodiment, the sand washing cylinder D5 has an internal volume of 500mL, and the lower part is a conical body with a cone angle of 60 degrees, so that the sand can be intensively precipitated; the filter screen assembly D9 and the filter screen assembly D9 are obliquely arranged at an angle of 30 degrees, and the filter screen assembly D9 is provided with an annular sealing line.

As an alternative embodiment, the sand washing cylinder D5 is provided with an overflow port 401.

As an alternative embodiment, the lower end of the mud cylinder a10 is communicated with the first measuring cylinder a12 through a filtrate pipe, and the filtrate pipe is provided with a dirt baffle 501.

As an optional embodiment, the drilling mud performance multi-parameter measuring device further comprises a host 3 and a display control screen 4; the filtration loss measuring module A, the pH value measuring module B, the viscosity density measuring module C, the sand content measuring module D and the display control screen 4 are all electrically connected with the host 3. The host 3 controls the action programs, the signal receiving and transmitting, the system power supply and the data processing of each measuring module; the display control screen 4 has the functions of data display, operation instruction, data storage and printing, so that multi-parameter automatic joint measurement can be realized. In the automatic measurement process, multi-parameter automatic simultaneous measurement and single-parameter measurement (single measurement) can also be selected, as shown in fig. 4. The drilling mud performance multi-parameter measuring device promotes the development of drilling equipment to the intelligent direction.

As an alternative embodiment, the fluid loss measuring module A, pH value measuring module B, the viscosity density measuring module C, and the sand content measuring module D, which are communicated with the mud tank 1, may be integrated and assembled into a whole, and installed in a test box, and the components and pipelines for slurry supply, cleaning, sewage disposal, etc. may be shared. The lower part of the box body is provided with a sewage draining groove and a shared sewage draining outlet. The shells of the containers are made of anticorrosive materials, and elements and parts need to be subjected to anticorrosive treatment.

As an alternative embodiment, the drilling mud performance multi-parameter measuring device further comprises a 220V alternating current power supply, and the power supply safety voltage of the measuring device is 36V.

As an alternative embodiment, the mud cylinder A10 has sealing performance and compressive strength with pressure resistance of 1 MPa.

As an alternative embodiment, the viscosity density measuring module C, the measuring funnel C5 may use a threo funnel to measure the mud viscosity (soxhlet viscosity) or a mahalanobis funnel to measure the mud viscosity (mahalanobis viscosity).

As an alternative embodiment, when the measured fluid loss and sand content are abnormal and the repeatability is poor, the filter assembly a11 and the filter assembly D9 need to be checked, and they can be replaced periodically. The accuracy of the slurry needs to be checked regularly by standard slurry.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The principle and the implementation of the present invention are explained herein by using specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims (10)

1. A drilling mud property multi-parameter measurement device, comprising: the device comprises a mud tank, and a filtration loss measuring module, a pH value measuring module, a viscosity density measuring module and a sand content measuring module which are communicated with the mud tank;

the filtration loss measuring module comprises an air source, a filtration loss valve assembly, a slurry barrel, a filtering assembly, a first measuring barrel and a first light sensor; the upper end of the mud barrel is respectively communicated with the gas source and the mud tank through the filter loss valve assembly; the lower end of the mud cylinder is communicated with the first measuring cylinder; the filter assembly is positioned inside the mud bucket; the first light sensor is positioned on one side of the first measuring cylinder;

the pH value measuring module comprises a pH value sensor; the pH value sensor is arranged inside the mud tank;

the viscosity density measuring module comprises a timing sensor, a viscosity density valve assembly, a measuring funnel and a weighing sensor; the measuring funnel is communicated with the mud tank through the viscosity density valve assembly; the timing sensor is used for recording the time taken for the preset amount of mud to flow out of the measuring funnel; the weighing sensor is arranged on the measuring funnel; the weighing sensor is used for weighing the slurry flowing to the measuring funnel;

the sand content measuring module comprises a constant-volume slurry supply device, a sand washing cylinder, a filter screen assembly, a second measuring cylinder and a second light sensor; the constant-volume slurry supply device is communicated with the slurry tank; the upper end of the sand washing barrel is connected with the constant-volume slurry supply device; the lower end of the sand washing cylinder is connected with the second measuring cylinder; the filter screen assembly is arranged in the sand washing barrel and forms a set included angle with the horizontal plane; the second light sensor is positioned on one side of the second measuring cylinder.

2. The drilling mud performance multiparameter measurement device of claim 1, wherein the fluid loss measurement module further comprises a first spray assembly;

the first spraying assembly comprises a first clear water electromagnetic valve and a first nozzle; the first nozzle is arranged inside the mud barrel; the first clear water electromagnetic valve is arranged on a pipeline for communicating the first nozzle with clear water;

the sand content measuring module further comprises a second spraying assembly;

the second spraying assembly comprises a second clean water electromagnetic valve, a second nozzle and a third nozzle; the second nozzle and the third nozzle are both communicated with the clean water injection port through the second clean water electromagnetic valve; the second nozzle is arranged in the sand washing barrel and is positioned above the filter screen assembly; the third nozzle is arranged in the sand washing barrel and is positioned below the filter screen assembly;

the pH value measuring module further comprises a third clear water electromagnetic valve arranged on a pipeline for communicating the mud tank with clear water.

3. The drilling mud performance multiparameter measurement device of claim 1, wherein the fluid loss measurement module further comprises a first motor; the first motor is arranged at the upper end of the mud barrel; the first motor is connected with the filtering component through a motor shaft; the first motor is used for driving the filter assembly to move in the mud barrel;

the sand content measuring module also comprises a second motor; the second motor is arranged at the upper end of the sand washing barrel; the second motor is connected with the filter screen assembly through a motor shaft; the second motor is used for driving the filter screen assembly to move in the sand washing barrel.

4. The drilling mud performance multiparameter measurement device of claim 1, wherein the fluid loss measurement module further comprises a first fluid level sensor; the first liquid level sensor is arranged at the upper end of the mud barrel; the viscosity density measurement module further comprises a second liquid level sensor; the second liquid level sensor is positioned above the funnel opening of the measuring funnel.

5. The drilling mud performance multiparameter measurement device according to claim 1, wherein the fluid loss valve assembly comprises a pressure relief valve, an inlet solenoid valve, an outlet solenoid valve, and a first inlet motorized ball valve; the gas source is communicated with the mud barrel through the pressure reducing valve and the gas inlet electromagnetic valve in sequence; the mud cylinder is connected with an exhaust port through the air outlet electromagnetic valve; the mud cylinder is communicated with the mud tank through the first mud inlet electric ball valve;

the viscosity density valve assembly comprises a second slurry inlet electric ball valve and a clean water electric ball valve; the second slurry inlet electric ball valve and the clean water electric ball valve are both positioned above the funnel opening of the measuring funnel; the measuring funnel is communicated with the mud tank through the second slurry inlet electric ball valve.

6. A drilling mud performance multiparameter measurement device according to claim 1, wherein the constant volume mud supply device comprises: a third liquid level sensor, a mud cup and a third electric ball valve for feeding mud; the mud tank is communicated with the sand washing barrel sequentially through the third liquid level sensor, the mud cup and the third slurry inlet electric ball valve.

7. The drilling mud performance multiparameter measurement device according to claim 1, wherein the filter assembly comprises: the first check ring, the filter cloth, the first filter screen and the supporting plate; the supporting plate is provided with the first filter screen; the first filter screen is provided with the filter cloth; the filter cloth is fixed on the supporting plate through the first retainer ring.

8. A drilling mud performance multiparameter measurement device according to claim 1, wherein the screen assembly comprises: the second check ring, the second filter screen and the filter screen frame; the plane where the filter screen frame is located forms an included angle of 30 degrees with the horizontal plane; the second filter screen is arranged on the filter screen frame; the second retainer is used for fixing the second filter screen.

9. The drilling mud performance multiparameter measuring device according to claim 1, wherein the bottom of the first graduated cylinder is in communication with a sewage drain through a first sewage electric ball valve; the bottom of the measuring funnel is communicated with the sewage draining port through a second sewage draining electric ball valve; the bottom of the second measuring cylinder is communicated with the sewage draining port through a third sewage draining electric ball valve.

10. The drilling mud performance multiparameter measurement device according to claim 1, further comprising a host computer and a display control screen; the filtration loss measuring module, the pH value measuring module, the viscosity density measuring module, the sand content measuring module and the display control screen are all electrically connected with the host.

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