CN114130233B - Solid-liquid mixing continuous pumping system and process method thereof - Google Patents
Solid-liquid mixing continuous pumping system and process method thereof Download PDFInfo
- Publication number
- CN114130233B CN114130233B CN202111312883.6A CN202111312883A CN114130233B CN 114130233 B CN114130233 B CN 114130233B CN 202111312883 A CN202111312883 A CN 202111312883A CN 114130233 B CN114130233 B CN 114130233B
- Authority
- CN
- China
- Prior art keywords
- liquid
- pump
- powder
- sliding door
- chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Accessories For Mixers (AREA)
Abstract
The invention provides a solid-liquid mixing continuous pumping system, which comprises a liquid preparation system, a dry adding system, a liquid adding system and a pumping system, wherein the liquid preparation system comprises a mixing tank, a venturi mixer and a jet pump; the functions of accurately adding the solid-liquid additive and continuously mixing and pumping the process liquid can be realized through the working procedures of the dry adding system, the liquid preparing system and the pumping system which are integrally controlled.
Description
Technical Field
The invention relates to the field of petroleum machinery and well repair and completion operation equipment, in particular to a solid-liquid mixing continuous pumping system and a process method thereof.
Background
Shale gas reservoirs are typical low porosity, low permeability unconventional natural gas reservoirs and have a large specific gravity in world oil and gas resources. The special reservoir characteristics determine that reservoir fracturing modification technology must be adopted to improve the oil gas flow seepage condition in the development of the reservoirs, so that the aim of reliable and efficient development is achieved. Because the horizontal well staged fracturing technology can expose the production layer to the maximum extent, more net-stitching systems are communicated, and better economic benefits are obtained, the method is a main way for reasonably solving the shale gas reservoir development problem. Drillable bridge plug staged perforation sand fracturing technology is widely adopted in horizontal operation wells such as shale gas, and drilling and milling of the bridge plug are key technologies for solving the follow-up problems of staged fracturing of the horizontal well. The drilling and plugging fluid is an important component in the drilling and milling bridge plugging operation process, and usually, slickwater is used as base fluid, various additives are added according to operation requirements, and then the base fluid is pumped into the well for use, and the requirements on the dosage, the fluid preparation efficiency, the fluid preparation quality, the pumping timeliness and the like are very high.
At present, a batch mixing system is commonly used for preparing drilling and plugging fluid in a well site, the drilling and plugging fluid after being mixed is stored in a storage tank, and then the drilling and plugging fluid is pressurized and pumped into a continuous oil pipe by using a fracturing truck, so that the circulating pumping operation of the drilling and plugging fluid is completed. From the workflow, the following problems exist in the field of compounding liquid by adopting a compounding system: the manual addition of chemicals is inaccurate in measurement, the operation condition is bad, the operation strength is high, certain environmental pollution exists, and the waste of manpower and material resources is easily caused; the liquid preparation and pumping links are single and separate, the water supply system, the stirring system, the slurry mixing system and the injection system are relatively independent, the linkage cooperative adjustment, the continuous mixing and the instant mixing and instant injection functions cannot be realized, the operation intensity and the operation cost are increased intangibly, and the operation speed and the operation quality are influenced. Along with the gradual expansion of the development scale of shale gas, the limitation and the deficiency of a drilling and plugging fluid circulating pumping mode pumped by using fracturing equipment after manual fluid preparation are increasingly obvious, and the requirements of field operation are increasingly difficult to adapt; the drilling and plugging fluid circulating pumping work flow capable of realizing accurate addition of various additives, continuous mixing of drilling and plugging fluids and mixing and injection of drilling and plugging fluids is necessary to meet the increasingly severe engineering demands, and the boosted shale gas is developed efficiently, safely and with high quality.
Disclosure of Invention
The invention provides a solid-liquid mixing continuous pumping system and a process method thereof, which solve the problem of accurate addition of various additives and continuous mixing of drilling and plugging liquid during the preparation of the drilling and plugging liquid.
In order to solve the technical problems, the invention adopts the following technical scheme: the solid-liquid mixing continuous pumping system comprises a liquid preparation system, a dry adding system, a liquid adding system and a pumping system, wherein the liquid preparation system comprises a mixing tank, a venturi mixer and a jet pump, the jet pump is communicated with the mixing tank through the venturi mixer, the mixing tank is communicated with the pumping system, the liquid adding system is communicated with the mixing tank, the dry adding system comprises a storage tank with a weighing scale and a powder conveyer, and the storage tank, the powder conveyer and the venturi mixer are sequentially communicated.
In a preferred embodiment, the liquid adding system includes a liquid adding tank and a liquid adding pump, and the liquid adding tank, the liquid adding pump and the mixing tank are sequentially connected.
In the preferred scheme, the pumping system comprises a perfusion pump, a first plunger pump and a second plunger pump, wherein the first plunger pump and the second plunger pump are connected in parallel, one end of the first plunger pump and one end of the second plunger pump are communicated with the mixing tank through the perfusion pump, and the other end of the first plunger pump and the other end of the second plunger pump are communicated underground.
In the preferred scheme, the jet pump and the Venturi mixer are also sequentially communicated with a regulating valve and a first flowmeter, a fifth valve and a sixth valve are respectively arranged at the inlets of the first plunger pump and the second plunger pump, and a second flowmeter is arranged at the outlet of the filling pump.
In the preferred scheme, still include compensating system, compensating system includes recovery tank and compensator, and the inside first cavity and the second cavity that are equipped with through the liquid pump intercommunication of blending tank, first cavity and second cavity are equipped with first agitator and second agitator respectively, and venturi blender and first cavity intercommunication, recovery tank and compensator intercommunication, compensator and second cavity intercommunication, second cavity export and pumping system intercommunication still are equipped with level gauge and densimeter in the second cavity.
In the preferred scheme, be equipped with the matrix divider in the compensator, the matrix divider is equipped with a plurality of unit chamber that are arranged in ranks, and the unit chamber link up from top to bottom, and the matrix divider top is equipped with the raw materials chamber, and matrix divider below is equipped with the buffering chamber, and buffering chamber lower extreme is equipped with discharge gate and recovery mouth, and the discharge gate communicates with the second cavity, and recovery mouth communicates with the recovery jar, and the matrix divider upper and lower both ends are equipped with openable upper sliding door and lower sliding door respectively, and upper sliding door and lower sliding door slip direction are perpendicular.
In the preferred scheme, the upper end of the buffer cavity is provided with an air inlet which is communicated with an air source.
Comprises a process method and a device for preparing the composite,
s1, a job preparation stage: inputting three parameters of the pumping displacement, the dry adding proportion and the liquid adding proportion of the process liquid into a control system, closing all valves except a regulating valve and a second valve, and setting the regulating valve to be in a full-open state; starting a second motor to drive a jet pump to start working, and at the moment, regulating the opening degree by the regulating valve according to the displacement parameter set by the control system and the flow value measured by the first flow meter, so as to ensure that the flow value measured by the first flow meter is consistent with the displacement parameter set by the control system;
s2, mixing and pumping: independently starting or closing related equipment of the dry adding system and the liquid adding system according to actual operation requirements, and adding additives according to the dry adding proportion and the liquid adding proportion set by the control system; meanwhile, corresponding equipment and valves of the pumping system are started to pump the process liquid into the well, and at the moment, the opening of the regulating valve is regulated by the flow value fed back by the second flow meter, so that the flow values measured by the first flow meter and the second flow meter are consistent, and the outlet flow of the jet pump is consistent with the outlet flow of the perfusion pump;
s3, a job ending stage: and after the operation is finished, all motors, valves and stirrers of the dry adding system, the liquid adding system and the liquid preparing system are closed, all equipment and valves of the pumping system are closed after the process liquid in the mixing tank is pumped until no residue exists, and finally, the power supply of the control system is closed.
In a preferred embodiment, S2 further comprises a compensatory pumping method for the powder:
s21, primarily mixing the solid and liquid additives and water through a Venturi gas mixer, and then entering a first chamber, wherein the first stirrer works to stir and mix the mixed liquid again;
s22, the liquid pump pumps the mixed liquid in the first chamber to the second chamber for storage, and the second stirrer works to prevent the mixed liquid from layering;
s23, detecting the density of the mixed liquid by a densimeter, starting a pumping system to send the mixed liquid into the well if the density reaches the standard, monitoring the liquid level in the second chamber by a liquid level meter, stopping the liquid pump from delivering the mixed liquid to the second chamber if the liquid level exceeds a high liquid level, and stopping the pumping system if the liquid level is lower than a low liquid level; if the density detected by the densimeter is lower than the set value, starting the compensator, compensating the powder in the second chamber, and stirring by the second stirrer to uniformly mix the powder.
In a preferred embodiment, S23 further includes a powder compensation method:
s231, calculating the number of compensator unit cavities: according to densitometer feedback, the total quantity M of the powder is calculated, the capacity of a single unit cavity is known as V, and therefore the number of the unit cavities required by calculation is calculated as S=M/V;
s232, estimating the opening degree of the up-and-down sliding door: s is decomposed into the number of rows H of the unit cavity and the number of columns L are multiplied, namely S=H×L, wherein H is the opening degree of the lower sliding door, and L is the opening degree of the upper sliding door;
s233, working of a compensator: the method comprises the steps that in the initial process, an upper sliding door and a lower sliding door are in a completely closed state, the upper sliding door is opened according to an opening L, powder in a raw material cavity falls into each unit cavity, the upper sliding door is closed, the lower sliding door is opened according to an opening H, powder in part of unit cavities falls into a cache cavity, a discharge hole is opened, and powder in the cache cavity is conveyed into a second cavity;
s234, powder recovery: closing the discharge hole, fully opening the lower sliding door, enabling the residual powder to fall into the buffer cavity, opening the recovery port, and conveying the residual powder into the recovery tank.
The beneficial effects of the invention are as follows: the functions of accurately adding the solid-liquid additive and continuously mixing and pumping the process liquid can be realized through the working procedures of integrated control of the dry adding system, the liquid preparing system and the pumping system; in the preferred scheme, the opening of the regulating valve is regulated by the flow measured by the flowmeter at the outlet of the filling pump so as to control the flow of the jet pump, thereby ensuring that the mixing amount and the pumping amount of the process liquid are consistent and avoiding the air suction of the plunger pump or the overflow of the mixing tank; in the preferred scheme, the solid-liquid additive can be accurately added in proportion by matching the flow measured by the flowmeter at the outlet of the jet pump with a dry-adding and liquid-adding system motor and a weighing scale on a base of a storage tank; in the preferred scheme, the dry material blending amount is compensated in real time through the compensation system, so that the proportioning accuracy is further improved.
Drawings
The invention is further described below with reference to the drawings and examples.
Fig. 1 is a schematic diagram of the present invention.
Fig. 2 is a schematic diagram of an addition compensation system of the present invention.
Fig. 3 is a partial system diagram of the present invention.
Fig. 4 is a block diagram of a matrix divider of the present invention.
Fig. 5 is a schematic diagram of the operation of the compensator of the present invention.
Fig. 6 is a second schematic diagram of the operation of the compensator of the present invention.
Fig. 7 is a top view of the compensator of the present invention.
FIG. 8 is a third schematic diagram of the operation of the compensator of the present invention
In the figure: a matrix divider 1; a cell chamber 101; an upper sliding door 2; a lower sliding door 3; a raw material cavity 4; a buffer cavity 5; an air inlet 501; a discharge port 502; a recovery port 503; a first driving mechanism 6; a second drive mechanism 7.
Detailed Description
In fig. 1-8, a solid-liquid mixing continuous pumping system comprises a liquid preparation system, a dry adding system, a liquid adding system and a pumping system, wherein the liquid preparation system comprises a mixing tank, a venturi mixer and a jet pump, the jet pump is communicated with the mixing tank through the venturi mixer, the mixing tank is communicated with the pumping system, the liquid adding system is communicated with the mixing tank, the dry adding system comprises a storage tank with a weighing scale and a powder conveyer, the discharge amount of the storage tank is measured through the electronic weighing scale, the powder conveyer can be a screw conveyer, continuous mass conveying is ensured, the storage tank, the powder conveyer and the venturi mixer are sequentially communicated, the solid-liquid mixing continuous pumping system further comprises a control system, the control system integrally controls all other systems, an external water source is introduced into the venturi mixer at a high speed through the jet pump to be primarily mixed with dry materials (powder) in the dry adding system in the venturi mixer, and then liquid additives in the liquid adding system are respectively introduced into the mixing tank to be mixed into required process liquid.
In a preferred embodiment, the liquid adding system includes a liquid adding tank and a liquid adding pump, and the liquid adding tank, the liquid adding pump and the mixing tank are sequentially connected.
In the preferred scheme, the pumping system comprises a filling pump, a first plunger pump and a second plunger pump, wherein the first plunger pump and the second plunger pump are connected in parallel, one end of the first plunger pump and one end of the second plunger pump are communicated with a mixing tank through the filling pump, the other end of the first plunger pump and the other end of the second plunger pump are communicated underground, process liquid in the mixing tank is pressurized through the filling pump and is pumped into the first plunger pump and the second plunger pump, one of the first plunger pump and the second plunger pump works, and the process liquid is pumped into the underground after being pressurized again.
In the preferred scheme, the jet pump and the Venturi mixer are also sequentially communicated with a regulating valve and a first flowmeter, the regulating valve and the first flowmeter are used for controlling the flow of the input water in a feedback mode, a fifth valve and a sixth valve are respectively arranged at the inlets of the first plunger pump and the second plunger pump, a second flowmeter is arranged at the outlet of the filling pump, and the regulating valve is used for monitoring and regulating the flow of the output process liquid.
The workflow of high-precision addition and continuous mixing of the solid and liquid additives in the pumping process comprises the following characteristics:
(1) In the mixing pumping stage, three parameters of pumping displacement, dry adding proportion and liquid adding proportion can be adjusted in a control system according to actual operation requirements.
(2) The first plunger pump and the second plunger pump in the pumping system can be switched to be used according to the operation requirement.
(3) The dry adding system determines the adding amount of the solid additive according to the flow value fed back by the first flow meter and the dry adding proportion set by the control system, and the conveying amount of the screw conveyor is changed through the rotating speed of the first motor of an electronic scale feedback signal arranged at the lower part of the storage tank, so that the accurate adding of the solid additive is realized.
(4) The liquid adding system determines the adding amount of the liquid additive according to the flow value fed back by the first flow meter and the liquid adding proportion set by the control system, and realizes accurate adding of the liquid additive according to the rotating speed of the third motor of the adding amount of the liquid additive.
In the preferred scheme, the automatic mixing device further comprises a compensation system, the compensation system comprises a recovery tank and a compensator, a first cavity and a second cavity communicated through a liquid pump are arranged in the mixing tank, the first cavity and the second cavity are respectively provided with the first stirrer and the second stirrer, the Venturi mixer is communicated with the first cavity, the recovery tank is communicated with the compensator, the compensator is communicated with the second cavity, an outlet of the second cavity is communicated with a pumping system, a liquid level meter and a densimeter are further arranged in the second cavity, and as the powder amount is large, the powder cannot be completely mixed through the Venturi mixer alone, the main function of the first cavity is secondary stirring type mixing of the powder, the mixing is sufficient, the second cavity mainly acts as buffering mixed liquid, the second stirrer continuously stirs and keeps the process liquid uniform without layering or sedimentation, the volume is larger than that of the first cavity, the pumping system can continuously suck the liquid from the second cavity, and the densimeter monitors the density of the process liquid in real time through the liquid level meter, and feeds back the opening degree of each valve or the motor rotating speed of each executing pump in time.
Because the powder demand is great, carry through screw conveyer and the like mechanism, the powder is unavoidable to remain on each conveying structure, lead to the volume of actually sending to in the blending tank always to be less than the theoretical discharge volume of storage tank, consequently, increased the densitometer that detects in the second cavity, form closed loop feedback mechanism, when the powder is joined in marriage inadequately and is led to density to reduce, through the powder quick replenishment to the second cavity that stores in the compensator, further improve the joining in marriage the precision of powder, because the powder volume of compensation is less, can the quick mixing even under the stirring of second agitator, and do not influence pumping system's continuous operation.
In the preferred scheme, be equipped with matrix divider 1 in the compensator, matrix divider 1 mainly plays the effect of subdivision, equipartition powder, matrix divider 1 is equipped with a plurality of unit chamber 101 that the range was arranged, each unit chamber 101 volume equals, unit chamber 101 link up from top to bottom and the inner wall is smooth, the powder receives the dead weight and can get into from one end, the other end roll-off, unit chamber 101 quantity makes single powder volume as far as possible less, improve subdivision precision, matrix divider 1 top is equipped with raw materials chamber 4, matrix divider 1 below is equipped with buffer chamber 5, buffer chamber 5 lower extreme is equipped with discharge gate 502 and recovery mouth 503, discharge gate 502 communicates with the second cavity, recovery mouth 503 communicates with the recovery jar, the upper and lower both ends of matrix divider 1 are equipped with openable and closable upper sliding door 2 and lower sliding door 3 respectively, upper sliding door 2 and lower sliding door 3 slip direction are perpendicular.
The sliding door further comprises a first driving mechanism 6 and a second driving mechanism 7, the first driving mechanism 6 and the second driving mechanism 7 are identical in structure and comprise servo motors and gear rack mechanisms, racks of the second driving mechanism 7 are connected with the upper sliding door 2, racks of the first driving mechanism 6 are connected with the lower sliding door 3, two racks are arranged vertically in space, and the two servo motors are controlled by a control system.
In a preferred scheme, the upper end of the buffer cavity 5 is provided with an air inlet 501, the air inlet 501 is communicated with an air source, the air source plays an auxiliary role, and the air source can be controlled by a pulse valve to impact the powder remained in the buffer cavity 5 so that the powder is sprayed into a second cavity or a recovery tank.
The process method is as follows,
s1, a job preparation stage: inputting three parameters of the pumping displacement, the dry adding proportion and the liquid adding proportion of the process liquid into a control system, closing all valves except a regulating valve and a second valve, and setting the regulating valve to be in a full-open state; starting a second motor to drive a jet pump to start working, and at the moment, regulating the opening degree by the regulating valve according to the displacement parameter set by the control system and the flow value measured by the first flow meter, so as to ensure that the flow value measured by the first flow meter is consistent with the displacement parameter set by the control system;
s2, mixing and pumping: independently starting or closing related equipment of the dry adding system and the liquid adding system according to actual operation requirements, and adding additives according to the dry adding proportion and the liquid adding proportion set by the control system; simultaneously, corresponding equipment and valves of a pumping system are started to pump the process liquid into the well, a second valve and a fourth motor are started, and meanwhile, a fifth valve, a fifth motor or a sixth valve and a sixth motor are started according to actual use requirements to drive a first plunger pump or a second plunger pump to pump the process liquid into the well, at the moment, the opening of a regulating valve is regulated by a flow value fed back by a second flowmeter, so that the flow values measured by the first flowmeter and the second flowmeter are consistent, and the flow of a jet pump outlet is consistent with the flow of a filling pump;
a) The workflow of the dry-adding system is as follows:
opening a first valve and a first motor to enable the solid additive to be mixed through a venturi mixer by a screw conveyor, and then stirring in a mixing tank; and under the condition that the solid additive is not required to be added, closing the first valve and ending the dry adding operation by the first motor.
The dry adding system determines the adding amount of the solid additive according to the flow value fed back by the first flow meter and the dry adding proportion set by the control system, and adjusts the rotating speed of the first motor through an electronic scale feedback signal arranged at the lower part of the storage tank so as to change the conveying amount of the screw conveyor and realize the accurate adding of the solid additive.
b) The working flow of the liquid adding system is as follows:
starting a third valve and a third motor to enable the liquid additive to be pumped into the mixing tank through the liquid adding pump for mixing; and closing the third valve and the third motor to finish the liquid adding operation under the condition that the liquid additive is not needed to be added.
The liquid adding system determines the adding amount of the liquid additive according to the flow value fed back by the first flow meter and the liquid adding proportion set by the control system, and adjusts the rotating speed of the third motor according to the adding amount of the liquid additive so as to change the pumping amount of the liquid adding pump and realize accurate adding of the liquid additive.
S3, a job ending stage: and after the operation is finished, all motors, valves and stirrers of the dry adding system, the liquid adding system and the liquid preparing system are closed, all equipment and valves of the pumping system are closed after the process liquid in the mixing tank is pumped until no residue exists, and finally, the power supply of the control system is closed.
The water source and the liquid additive can be added according to the detection of the densimeter, the liquid adding error can be gradually reduced in the system debugging stage by adjusting the feedback control of each valve and the motor, and the degree of no influence on the use is achieved, so that the density error detected by the densimeter mainly comes from the error of the powder quantity.
In a preferred embodiment, S2 further comprises a compensatory pumping method:
s21, primarily mixing the solid and liquid additives and water through a Venturi gas mixer, and then entering a first chamber, wherein the first stirrer works to stir and mix the mixed liquid again to the extent that the mixed liquid can be used;
s22, the liquid pump pumps the mixed liquid in the first chamber to the second chamber for storage, and the second stirrer works to prevent the mixed liquid from layering or generating precipitation;
s23, detecting the density of the mixed liquid by a densimeter, starting a pumping system to send the mixed liquid into the well if the density reaches the standard, monitoring the liquid level in the second chamber by a liquid level meter, stopping the liquid pump from delivering the mixed liquid to the second chamber if the liquid level exceeds a high liquid level, and stopping the pumping system if the liquid level is lower than a low liquid level; if the density detected by the densimeter is lower than the set value, the pumping system is not stopped, the compensator is started, the powder is compensated in the second cavity, and the powder is quickly and uniformly mixed by continuous stirring of the second stirrer, so that pumping is realized while compensation is realized.
In a preferred embodiment, S23 further includes a powder compensation method:
s231, calculating the number of compensator unit cavities: according to the densitometer feedback, the total quantity M of powder in unit time is calculated, the capacity of a single unit cavity 101 is known as V, so that the required unit cavity 101 is calculated to be S=M/V, for example, the quantity of the powder which is lacking in 1min is 100g, the capacity of each unit cavity is 10 g, and the required unit cavity quantity is 10;
s232, estimating the opening degree of the up-and-down sliding door: s is decomposed into the number of rows H and the number of columns L of the cell cavity 101, i.e. s=h×l, where H is the opening of the lower sliding gate 3, and L is the opening of the upper sliding gate 2, and since s=10, h=2 and l=5;
s233, working of a compensator: initially, the upper sliding door 2 and the lower sliding door 3 are in a completely closed state, the upper sliding door 2 is opened according to the opening degree L, namely the width of 5 grids is opened, powder in the raw material cavity 4 falls into each unit cavity 101, the upper sliding door 2 is closed, the lower sliding door 3 is opened according to the opening degree H, namely the width of 2 grids is opened, powder in part of the unit cavities 101 falls into the buffer cavity 5, the discharge port 502 is opened, and the powder in the buffer cavity 5 is conveyed into the second cavity in a mode of blowing or falling under gravity;
s234, powder recovery: closing the discharge hole 502, fully opening the lower sliding door 3, enabling the residual powder to fall into the buffer cavity 5, opening the recovery hole 503, and conveying the residual powder into the recovery tank in a mode of blowing or falling under gravity.
The above embodiments are only preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the scope of the present invention should be defined by the claims, including the equivalents of the technical features in the claims. I.e., equivalent replacement modifications within the scope of this invention are also within the scope of the invention.
Claims (6)
1. A solid-liquid mixing continuous pumping system is characterized in that: the liquid mixing system comprises a mixing tank, a venturi mixer and a jet pump, wherein the jet pump is communicated with the mixing tank through the venturi mixer, the mixing tank is communicated with the pumping system, the liquid adding system is communicated with the mixing tank, the dry adding system comprises a storage tank with a weighing scale and a powder conveyer, and the storage tank, the powder conveyer and the venturi mixer are sequentially communicated;
the system comprises a mixing tank, a liquid pump, a venturi mixer, a liquid level meter, a pumping system, a liquid level meter, a density meter, a compensator, a mixing tank, a liquid level meter and a liquid level meter, wherein the mixing tank is internally provided with a first chamber and a second chamber which are communicated through the liquid pump;
be equipped with matrix divider (1) in the compensator, matrix divider (1) are equipped with cell chamber (101) that a plurality of ranks were arranged, cell chamber (101) link up from top to bottom, matrix divider (1) top is equipped with raw materials chamber (4), matrix divider (1) below is equipped with caches chamber (5), cache chamber (5) lower extreme is equipped with discharge gate (502) and recovery mouth (503), discharge gate (502) and second cavity intercommunication, recovery mouth (503) and recovery jar intercommunication, both ends are equipped with upper sliding door (2) and lower sliding door (3) that can open and close about matrix divider (1) respectively, upper sliding door (2) and lower sliding door (3) slip direction are perpendicular.
2. The solid-liquid compounding continuous pumping system of claim 1, wherein: the liquid adding system comprises a liquid adding tank and a liquid adding pump, and the liquid adding tank, the liquid adding pump and the mixing tank are sequentially communicated.
3. The solid-liquid compounding continuous pumping system of claim 1, wherein: the pumping system comprises a filling pump, a first plunger pump and a second plunger pump, wherein the first plunger pump and the second plunger pump are connected in parallel, one ends of the first plunger pump and the second plunger pump are communicated with the mixing tank through the filling pump, and the other ends of the first plunger pump and the second plunger pump are communicated underground.
4. A solid-liquid compounding continuous pumping system as defined in claim 3, wherein: a second valve is arranged between the external water source and the jet pump, an adjusting valve and a first flowmeter are also sequentially communicated between the jet pump and the Venturi mixer, a fifth valve and a sixth valve are respectively arranged at the inlets of the first plunger pump and the second plunger pump, and a second flowmeter is arranged at the outlet of the filling pump.
5. The solid-liquid compounding continuous pumping system of claim 1, wherein: an air inlet (501) is arranged at the upper end of the cache cavity (5), and the air inlet (501) is communicated with an air source.
6. The process method of the solid-liquid mixing continuous pumping system, as set forth in claim 4, is characterized in that:
s1, a job preparation stage: inputting three parameters of the pumping displacement, the dry adding proportion and the liquid adding proportion of the process liquid into a control system, closing all valves except a regulating valve and a second valve, and setting the regulating valve to be in a full-open state; starting a second motor to drive a jet pump to start working, and at the moment, regulating the opening degree by the regulating valve according to the displacement parameter set by the control system and the flow value measured by the first flow meter, so as to ensure that the flow value measured by the first flow meter is consistent with the displacement parameter set by the control system;
s2, mixing and pumping: independently starting or closing related equipment of the dry adding system and the liquid adding system according to actual operation requirements, and adding additives according to the dry adding proportion and the liquid adding proportion set by the control system; meanwhile, corresponding equipment and valves of the pumping system are started to pump the process liquid into the well, and at the moment, the opening of the regulating valve is regulated by the flow value fed back by the second flow meter, so that the flow values measured by the first flow meter and the second flow meter are consistent, and the outlet flow of the jet pump is consistent with the outlet flow of the perfusion pump;
s2 further includes the compensatory pumping method:
s21, primarily mixing the solid and liquid additives and water through a Venturi gas mixer, and then entering a first chamber, wherein the first stirrer works to stir and mix the mixed liquid again;
s22, the liquid pump pumps the mixed liquid in the first chamber to the second chamber for storage, and the second stirrer works to prevent the mixed liquid from layering;
s23, detecting the density of the mixed liquid by a densimeter, starting a pumping system to send the mixed liquid into the well if the density reaches the standard, monitoring the liquid level in the second chamber by a liquid level meter, stopping the liquid pump from delivering the mixed liquid to the second chamber if the liquid level exceeds a high liquid level, and stopping the pumping system if the liquid level is lower than a low liquid level; if the density detected by the densimeter is lower than the set value, starting a compensator, compensating powder in the second chamber, and stirring by a second stirrer to uniformly mix the powder;
s23 further comprises a powder compensation method:
s231, calculating the number of compensator unit cavities: according to densitometer feedback, the total quantity M of the powder is calculated, the capacity of a single unit cavity (101) is known as V, and therefore the number of the unit cavities (101) required by calculation is S=M/V;
s232, estimating the opening degree of the up-and-down sliding door: s is decomposed into the number of rows H and the number of columns L of the unit cavity (101), namely S=H×L, wherein H is the opening degree of the lower sliding door (3), and L is the opening degree of the upper sliding door (2);
s233, working of a compensator: initially, the upper sliding door (2) and the lower sliding door (3) are in a completely closed state, the upper sliding door (2) is opened according to the opening L, powder in the raw material cavity (4) falls into each unit cavity (101), the upper sliding door (2) is closed, the lower sliding door (3) is opened according to the opening H, part of powder in the unit cavities (101) falls into the cache cavity (5), the discharge port (502) is opened, and the powder in the cache cavity (5) is conveyed into the second cavity;
s234, powder recovery: closing a discharge hole (502), fully opening a lower sliding door (3), enabling the residual powder to fall into a cache cavity (5), opening a recovery port (503), and conveying the residual powder into a recovery tank;
s3, a job ending stage: and after the operation is finished, all motors, valves and stirrers of the dry adding system, the liquid adding system and the liquid preparing system are closed, all equipment and valves of the pumping system are closed after the process liquid in the mixing tank is pumped until no residue exists, and finally, the power supply of the control system is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111312883.6A CN114130233B (en) | 2021-11-08 | 2021-11-08 | Solid-liquid mixing continuous pumping system and process method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111312883.6A CN114130233B (en) | 2021-11-08 | 2021-11-08 | Solid-liquid mixing continuous pumping system and process method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114130233A CN114130233A (en) | 2022-03-04 |
| CN114130233B true CN114130233B (en) | 2023-07-11 |
Family
ID=80393135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111312883.6A Active CN114130233B (en) | 2021-11-08 | 2021-11-08 | Solid-liquid mixing continuous pumping system and process method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114130233B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016122381A1 (en) * | 2015-01-27 | 2016-08-04 | Sandman Stefan | Grout preparation and administration |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1808677B1 (en) * | 2005-12-15 | 2011-04-27 | Logic Art Automatic Co., Ltd. | Automatic liquid density-regulating device |
| CN205187964U (en) * | 2015-12-08 | 2016-04-27 | 湖南水之源环保科技工程有限公司 | Sewage treatment equipment |
| CN107136042B (en) * | 2017-07-17 | 2022-08-30 | 深圳市鼎邦自动化设备有限公司 | Full-automatic liquid medicament blending and filling equipment |
| CN107701161A (en) * | 2017-10-10 | 2018-02-16 | 中石化四机石油机械有限公司 | A kind of mixture pumping system and its device |
| CN207667538U (en) * | 2017-11-21 | 2018-07-31 | 南京友西科技股份有限公司 | A kind of compounding system of polycarboxylate water-reducer |
| US20190264517A1 (en) * | 2018-02-26 | 2019-08-29 | Schlumberger Technology Corporation | Integrated fluids delivery platform |
| CN208943895U (en) * | 2018-10-17 | 2019-06-07 | 中石化石油工程技术服务有限公司 | A kind of fracturing fluid device for formulating |
| CN110815560B (en) * | 2019-09-30 | 2021-05-11 | 山东耀华特耐科技有限公司 | Uniform material distribution equipment for cement-free castable |
| CN113457493B (en) * | 2021-05-14 | 2022-08-12 | 奥格生物技术（六安）有限公司 | Feeder for processing beauty and freckle-removing nourishment and feeding method thereof |
-
2021
- 2021-11-08 CN CN202111312883.6A patent/CN114130233B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016122381A1 (en) * | 2015-01-27 | 2016-08-04 | Sandman Stefan | Grout preparation and administration |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114130233A (en) | 2022-03-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202506322U (en) | Continuous proportioning and blending device for fracturing fluid | |
| CN109931043B (en) | Online filling device and method for powder drag reducer for slickwater | |
| CN101270650A (en) | Skid mounted polymer injection system for marine oil field | |
| CN101172372A (en) | Automatic mixture making pulping system | |
| CN201423719Y (en) | Traveling soil cement automatic mixing station | |
| CN104264677A (en) | Novel constant-pressure grouting device and operating method thereof | |
| CN111844459A (en) | Integrated monitoring system and method for paste accurate feeding and stirring | |
| CN211074172U (en) | Weighing proportioning device for concrete production | |
| CN210466170U (en) | Automatic control system of electric sand mixing sledge | |
| CN114130233B (en) | Solid-liquid mixing continuous pumping system and process method thereof | |
| CN112677314B (en) | Slurry premixing control method | |
| CN108189234B (en) | Grouting filling rapid pulping device and method | |
| CN107701161A (en) | A kind of mixture pumping system and its device | |
| CN2362675Y (en) | Cement feeder for continuous type cement stirring equipment | |
| CN108058269B (en) | Cement soil preparation system suitable for soil bodies with different fluidity | |
| CN103485748A (en) | Automatic sand mixing system and automatic sand mixing process for water-dry lime sand mixed artificial borehole wall sand protection | |
| CN112780222B (en) | Device and method for automatically controlling sectional filling of plugging material | |
| CN212467750U (en) | Emulsification pump station with variable frequency motor | |
| CN203515512U (en) | Water-dry lime sand artificial borehole wall sand prevention automatic sand mixing system | |
| CN112677316B (en) | Well cementation slurry blending device, blending method and cleaning method thereof | |
| CN111535785B (en) | Simulation test bed and test method for coal-bed gas horizontal shaft blocked by pulverized coal | |
| CN209224290U (en) | A kind of automatic adjustment mud and water balance mud circulating system | |
| CN211189859U (en) | Automatic grouting and stirring system | |
| CN109834838B (en) | Automatic slurry preparation system and preparation method thereof | |
| CN113546552A (en) | Mud stirring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230824 Address after: 100020 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee after: CHINA PETROLEUM & CHEMICAL Corp. Patentee after: SINOPEC OILFIELD EQUIPMENT Corp. Address before: 434020 Longshan Temple Street, Jingzhou District, Jingzhou, Hubei Patentee before: SINOPEC SIJI PETROLEUM MACHINERY Co.,Ltd. Patentee before: SINOPEC OILFIELD EQUIPMENT Corp. |
|
| TR01 | Transfer of patent right |