CN114984804B - Mixed blending method for oil field oil-water well compound acid - Google Patents
Mixed blending method for oil field oil-water well compound acid Download PDFInfo
- Publication number
- CN114984804B CN114984804B CN202210835056.3A CN202210835056A CN114984804B CN 114984804 B CN114984804 B CN 114984804B CN 202210835056 A CN202210835056 A CN 202210835056A CN 114984804 B CN114984804 B CN 114984804B
- Authority
- CN
- China
- Prior art keywords
- shell
- plate
- rectangular
- fixedly connected
- liquid storage
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/80—After-treatment of the mixture
- B01F23/808—Filtering the mixture
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/10—Maintenance of mixers
- B01F35/12—Maintenance of mixers using mechanical means
- B01F35/123—Maintenance of mixers using mechanical means using scrapers for cleaning mixers
-
- 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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
Abstract
The invention relates to the technical field of oilfield chemical descaling and dredging agents, in particular to a compound acid mixing and blending method for an oilfield oil-water well, which comprises a liquid storage shell, wherein a stirring mechanism is connected inside the liquid storage shell, a feed hopper is fixedly communicated with the top of the liquid storage shell, a liquid outlet pipe is fixedly communicated with the bottom of the side surface of the liquid storage shell, a sealing valve is fixedly installed on the liquid outlet pipe, a rectangular shell is fixedly communicated with the side surface of the liquid storage shell, a rectangular frame is placed inside the rectangular shell, and a filter plate is fixedly connected inside the rectangular frame; according to the invention, the collected sediment is collected through the sediment collection mechanism, so that the test proportion of the components of the rock salt particles in different geological environments is realized, the influence of sediment generated during the later composite acidolysis and blocking removal capacity is avoided, and in the test process, the sediment in the internal solution can be automatically cleaned and collected by the debugging reaction container, so that the method is convenient and quick.
Description
Technical Field
The invention relates to the technical field of oilfield chemical descaling dredging agents, in particular to a compound acid mixing and blending method for an oilfield oil-water well.
Background
With the continuous development of the oilfield development industry in China, importance is placed on the efficiency and quality of oilfield exploitation; in the exploitation process of an oilfield, the influence of factors such as the rise of formation pressure and temperature, the aggregation of bacterial metabolites and the like causes the blockage of inorganic salts, iron compounds, biological slime, polymers and other organic matters and inorganic matters, and the current common blockage removal mode is to remove blockage by an acid blockage removal agent.
The prior art discloses a part of patent documents related to the technical field of oilfield chemical descaling dredging agents, and Chinese patent with the application number of CN202111513404.7 discloses a compound acid for oilfield oil-water wells and a preparation method thereof, wherein a specific preparation method is adopted to prepare a macromolecular compound FC, span 80 is added to be matched with the macromolecular compound FC in a compounding way, and various raw materials in the compound acid and the dosage/proportion of the raw materials are scientifically adjusted to obtain the oilfield oil-water well compound acid composition with excellent performance.
In the prior art, the composite acid raw materials with formulated proportions are generally put into a mixing device for mixing and blending to be mixed so as to prepare the composite acid for blocking removal, however, the actual conditions of the blocked rock salt particles in different oil wells are different, and the components of the rock salt particles are different due to different geological environments, so that the components are directly blended according to the conventional proportions, in the actual blocking removal process, the composite acid can generate acidic salt precipitates in the process of reacting with the rock salt particles, the blocking removal capability of the composite acid on the blocking removal is not facilitated, and in the process of a complex acid blending experiment, the precipitates are not convenient to collect and compare, and the selection result of the proportion of the composite acid raw materials is affected.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a mixing and blending method for oil field oil-water well compound acid.
In order to achieve the above purpose, the invention adopts the following technical scheme: the method for mixing and blending the oil field oil-water well compound acid comprises the following steps:
firstly, quantitatively adding a plurality of groups of oil-water well compound acid raw materials prepared in advance in different proportions into a debugging reaction container for independent experiments, and mixing and blending the oil-water well compound acid raw materials in a single group by the debugging reaction container;
step two, after the preparation is completed, rock salt particles sampled from an oil field are put into the prepared oil-water well compound acid in advance, then the reaction vessel is debugged to carry out sediment salvage for the same time, the salvaged sediment is collected, and then the next group of experiments are carried out;
step three, comparing the amount of each group of generated sediment, selecting a group of raw material proportioning mode with the least sediment, adopting the selected optimal raw material proportioning mode to blend the raw materials with the oil-water well compound acid, and adding the raw materials with the selected proportion into a large-scale blending reaction kettle for stirring, mixing and blending;
the debugging reaction container comprises a liquid storage shell, wherein a stirring mechanism is connected inside the liquid storage shell, and a feed hopper is fixedly communicated with the top of the liquid storage shell;
the bottom of the side surface of the liquid storage shell is fixedly communicated with a liquid outlet pipe, and a sealing valve is fixedly arranged on the liquid outlet pipe;
the side fixed intercommunication of stock solution casing has the rectangle casing, rectangular frame has been placed to the inside of rectangle casing, rectangular frame's inside fixedly connected with filter, rectangular frame's one side fixedly connected with places the frame, place the inside of frame and placed the material filter plate, rectangular frame's bottom fixed mounting has first hydraulic cylinder, the epaxial fixedly connected with connecting rod of piston of first hydraulic cylinder, one side fixedly connected with slide bar of connecting rod, the one end of slide bar runs through rectangular casing and extends to rectangular casing's inside back fixedly connected with is in rectangular frame's one side, rectangular casing inside top is connected with precipitate collection mechanism.
Preferably, the stirring mechanism comprises a first motor and a rotating shaft, the rotating shaft is rotationally connected to the bottom surface inside the liquid storage shell, the first motor is fixedly installed at the bottom of the liquid storage shell, the bottom end of the rotating shaft penetrates through the liquid storage shell and extends to the lower side of the liquid storage shell, and then is fixedly connected to an output shaft of the first motor, and the surface of the rotating shaft is fixedly connected with a plurality of stirring blades in a circumferential array.
Preferably, the lower part of stock solution shells inner wall rotates and is connected with the swivel becket, it has the closing plate to insert in the pivot, the closing plate is located the top of swivel becket, closing plate sliding seal is in the inside of stock solution shell, the bottom fixedly connected with of closing plate a plurality of spacer pins, the spacer pin is all slidingly inserted and is established on the swivel becket, all the cover is equipped with first spring on the spacer pin, the both ends of first spring are fixedly connected with respectively the closing plate with on the swivel becket, fixedly connected with spacing ring in the pivot of closing plate below, the top of spacing ring with the bottom axle center department of closing plate all is equipped with anti-skidding line, the gas pocket has been seted up to the bottom of stock solution shell, place the frame and keep away from one side of rectangular frame has been seted up and has been scraped the inclined plane, the guide inclined plane has all been seted up at the top of closing plate side.
Preferably, the outer ring department at closing plate top is circumference array and has seted up a plurality of spacing grooves, fixedly connected with two spacing fixture blocks on the inner wall of stock solution casing, two spacing fixture blocks are relative setting, spacing fixture block is located respectively adjacent in the spacing groove.
Preferably, the sediment collection mechanism comprises a placing groove, a drawing box and a scraping mechanism, wherein the placing groove is provided with the top of a placing frame, two sides of the placing frame are provided with movable grooves, the bottom of a material receiving filter plate is fixedly connected with two lantern rings, the bottom of each lantern ring penetrates out of the placing groove and extends to the lower part of the placing groove, one side in the rectangular shell is provided with a sliding groove, a plug rod is connected in the sliding groove in a sliding manner, one end of the plug rod is slidably inserted into the two lantern rings, the top of the rectangular shell is fixedly provided with a second motor, an output shaft of the second motor is fixedly connected with a screw rod, one end of the screw rod penetrates through the rectangular shell and extends to the inner part of the sliding groove and then is in threaded connection with the plug rod, the drawing box is slidably inserted into the position of the surface of the rectangular shell close to the top, the drawing box is fixedly connected with the inner wall of the rectangular shell, one end of the plug rod is slidably connected with a plug rod, one end of the plug rod is slidably arranged in the sliding manner on the inner wall of the rectangular shell, and the top of the rectangular shell is moved to the rectangular shell, one end of the plug rod is fixedly connected with the scraping mechanism in the filter plate when the rectangular shell moves to the top of the rectangular shell, and the sediment collection mechanism is cleaned.
Preferably, the scraping mechanism comprises an extrusion plate and a second hydraulic cylinder, the extrusion plate is located at the position, close to the top, of the inside of the rectangular shell, connecting pins are inserted in a sliding mode on two sides of the extrusion plate, the connecting pins are fixedly connected to the top in the rectangular shell, second springs are sleeved on the connecting pins, two ends of each second spring are fixedly connected to the extrusion plate and the rectangular shell respectively, the second hydraulic cylinder is fixedly connected to the surface of the rectangular shell, a piston shaft of the second hydraulic cylinder penetrates through the rectangular shell and extends to the inside of the rectangular shell, a connecting plate is fixedly connected to the top of the connecting plate, a wedge plate is fixedly connected to the connecting plate, an extrusion inclined plane at the bottom of the wedge plate is located at the top of the extrusion plate, one side of the connecting plate is fixedly connected with a supporting shell, one side, close to the extrusion inclined plane is formed in the side, of the supporting shell, and the end of the supporting shell is fixedly connected with a scraping plate.
Preferably, the bottom of the scraping plate is lapped on the edge of the top of the rectangular frame, and the scraping surface of the scraping plate is an arc-shaped surface.
Preferably, the material receiving shell is fixedly connected to the inner wall of the rectangular shell at a position corresponding to the drawing box, and the drawing box is slidably arranged in the material receiving shell.
Preferably, one side of the material receiving filter plate away from the filter plate is rotationally connected with a material blocking plate, a torsional spring is fixedly installed at the joint of the material receiving filter plate and the material blocking plate, and a guide inclined plane is formed at the top of the material blocking plate.
Preferably, an inclined guiding block is fixedly connected to the inside of the placement frame, one side of the inclined guiding block and one side of the striker plate are flush with each other, and the heights of the inclined guiding block and the striker plate are the same.
Compared with the prior art, the invention has the following beneficial effects:
1. the piston shaft of the first hydraulic cylinder drives the filter plate to transversely move in the liquid storage shell, so that solid sediment in liquid can be effectively trapped, the solid sediment in a composite acid solution is collected, then the collected sediment is collected through the sediment collecting mechanism, then the sediment collected by each proportion group is compared, a group of raw material proportion modes with the least sediment are selected, further, the experimental proportion of the components of salt rock particles in different geological environments is realized, the raw material proportion of better preparation oilfield well composite acid is selected, the influence of sediment produced during the later composite acidolysis blocking is avoided, and in the experimental process, the sediment in the internal solution can be automatically cleaned and collected by the debugging reaction container, so that the method is convenient and quick.
2. The sealing plate moves downwards and approaches the limiting ring, so that the sealing plate and the anti-skid patterns on the limiting ring are in contact extrusion, the rotating shaft drives the sealing plate to move together, the rectangular frame is enabled to rotate after entering the liquid storage shell, large-particle solid sediments at the top of the sealing plate move along with the rotation of the sealing plate, and the large-particle solid sediments are scraped through the contact of the top of the placing frame and the sealing plate, when approaching the placing frame, the large-particle solid sediments enter the material receiving filter plate inside the placing frame along the guide inclined plane at one end of the placing frame, the collection of the large-particle solid sediments is completed, and the sediment in the solution and the sediment at the bottom can be collected so as to be convenient for full collection, and the condition that the collection inaccuracy is caused by small collection range is avoided.
3. The spacing fixture block breaks away from the spacing groove to make the closing plate rotate along with the pivot, place the scraping inclined plane of frame and can scrape the deposit of pivoted closing plate surface deposit and collect, make at the in-process of collecting the deposit, can all follow rectangular frame and place the lateral shifting of frame, realized scraping the adjustment of moving the position to the closing plate top surface, and then be favorable to increasing the scraping range to the closing plate surface, be favorable to carrying out thorough clearance to the deposit on closing plate surface and collect.
4. Can scrape one side of filter at the in-process that connects the material filter plate to rise, make the solid sediment adhesion residue on the filter can carry out effectual clearance and collect, prevent that the filter from taking into the mixed liquor with the solid sediment that is stained with when filtering next time, and scrape the sediment of cleaning one side of filter at the material filter plate and remove to the top, scrape the sediment that the mechanism will connect to collect on the material filter plate and scrape the clearance to the pull box in, then pull out the pull box through the pull ring, the collection to the sediment has been realized, after the solid sediment falls into in the material receiving casing, fall into the pull box in the material receiving casing, through pulling the pull ring, make the pull box follow and pull out, make the solid sediment take out and collect the processing in the rectangle casing, the material receiving casing has played and has carried out auxiliary stay to the pull box.
5. When the piston shaft of the second hydraulic cylinder moves, the wedge-shaped plate is driven to move, the limit to the extrusion plate is canceled, the extrusion inclined plane of the supporting shell enters between the extrusion plate and the material receiving filter plate, the extrusion plate moves upwards along the connecting pin, the second spring is extruded to compress and deform, the scraping plate in the supporting shell scrapes solid sediment at the top of the material receiving filter plate to one side in the process of moving the surface of the material receiving filter plate, the solid sediment is pushed into the material receiving shell, the solid sediment is collected in the material receiving shell, and the solid sediment is prevented from being mixed in a compound acid solution again after the material receiving filter plate moves downwards.
Drawings
FIG. 1 is a flow chart of the method of the present invention;
FIG. 2 is a schematic diagram of the structure of the debugging reaction vessel in the present invention;
FIG. 3 is a schematic cross-sectional view of a reaction vessel according to the present invention;
FIG. 4 is an enlarged schematic view of the structure A in FIG. 3 according to the present invention;
FIG. 5 is a schematic cross-sectional view of a part of the structure of the reaction vessel (the rectangular housing is partially cut away) in the present invention;
FIG. 6 is an enlarged schematic view of the structure at B in FIG. 5 according to the present invention;
FIG. 7 is an enlarged schematic view of the structure at C in FIG. 5 according to the present invention;
FIG. 8 is a schematic view of the internal structure of a rectangular housing according to the present invention;
FIG. 9 is an enlarged schematic view of the structure at D in FIG. 8 according to the present invention;
FIG. 10 is an enlarged schematic view of the structure of FIG. 8 according to the present invention;
FIG. 11 is a schematic view of the mating structure of the sliding chute and the plugging rod of the present invention;
FIG. 12 is a schematic view showing a bottom cross-sectional structure of a sealing plate according to the present invention;
fig. 13 is a schematic structural view of a stop collar according to the present invention.
In the figure: 1. a liquid storage housing; 2. a feed hopper; 3. a liquid outlet pipe; 4. a sealing valve; 5. a rectangular housing; 6. a rectangular frame; 7. a filter plate; 9. placing a frame; 10. a material receiving filter plate; 11. a first hydraulic cylinder; 12. a connecting rod; 13. a slide bar; 14. a first motor; 15. a rotating shaft; 16. stirring the leaves; 17. a rotating ring; 18. a sealing plate; 19. a limiting pin; 20. a first spring; 21. a limiting ring; 22. air holes; 23. a limit groove; 24. a limit clamping block; 25. a placement groove; 26. a movable groove; 27. a collar; 28. a chute; 29. inserting a connecting rod; 30. a second motor; 31. a screw rod; 32. an extrusion plate; 33. a connecting pin; 34. a second spring; 35. a second hydraulic cylinder; 3501. a connecting plate; 3502. a connecting frame; 36. wedge plate; 38. supporting the shell; 39. a scraping plate; 40. a receiving shell; 41. drawing the box; 42. a pull ring; 43. a striker plate; 44. a torsion spring; 45. and a beveled guide block.
Detailed Description
The following description is presented to enable one of ordinary skill in the art to make and use the invention. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art.
The method for mixing and blending the oil field oil-water well compound acid as shown in fig. 1-13 comprises the following steps:
firstly, quantitatively adding a plurality of groups of oil-water well compound acid raw materials prepared in advance in different proportions into a debugging reaction container for independent experiments, and mixing and blending the oil-water well compound acid raw materials in a single group by the debugging reaction container;
step two, after the preparation is completed, rock salt particles sampled from an oil field are put into the prepared oil-water well compound acid in advance, then the reaction vessel is debugged to carry out sediment salvage for the same time, the salvaged sediment is collected, and then the next group of experiments are carried out;
step three, comparing the amount of each group of generated sediment, selecting a group of raw material proportioning mode with the least sediment, adopting the selected optimal raw material proportioning mode to blend the raw materials with the oil-water well compound acid, and adding the raw materials with the selected proportion into a large-scale blending reaction kettle for stirring, mixing and blending;
the debugging reaction container in the first to third steps comprises a liquid storage shell 1, wherein a stirring mechanism is connected inside the liquid storage shell 1, and a feed hopper 2 is fixedly communicated with the top of the liquid storage shell 1;
the bottom of the side surface of the liquid storage shell 1 is fixedly communicated with a liquid outlet pipe 3, and a sealing valve 4 is fixedly arranged on the liquid outlet pipe 3;
the side of the liquid storage shell 1 is fixedly communicated with a rectangular shell 5, a rectangular frame 6 is placed in the rectangular shell 5, a filter plate 7 is fixedly connected to the interior of the rectangular frame 6, a placement frame 9 is fixedly connected to one side of the rectangular frame 6, a material receiving filter plate 10 is placed in the placement frame 9, a first hydraulic cylinder 11 is fixedly installed at the bottom of the rectangular shell 5, a connecting rod 12 is fixedly connected to a piston shaft of the first hydraulic cylinder 11, a sliding rod 13 is fixedly connected to one side of the connecting rod 12, one end of the sliding rod 13 penetrates through the rectangular shell 5 and extends to one side of the rectangular shell 5, and then is fixedly connected to the interior of the rectangular frame 6, and a sediment collecting mechanism is connected to the top end of the interior of the rectangular shell 5; during operation, the prior art generally puts the formulated compound acid raw materials into a mixing device for mixing and blending to be mixed so as to prepare compound acid for blocking removal, but different actual conditions of blocked rock salt particles in different oil wells are different, components of the rock salt particles are different due to different geological environments, therefore, the compound acid is directly blended according to the conventional proportion, in the actual blocking removal process, acidic salt precipitates are generated in the reaction process of the compound acid and the rock salt particles, the blocking removal capability of the compound acid on the blocking is not facilitated, in the process of the compound acid blending experiment, the precipitates are inconvenient to collect and compare, the selection result of the compound acid raw material proportion is affected, the technical scheme can solve the problems, the specific operation mode is that a plurality of acidifiers for blending the compound acid are poured into a liquid storage shell 1 through a feed hopper 2, a stirring mechanism is utilized to mix and stir the acidifiers in the liquid storage shell 1, in the mixing and stirring process, a first hydraulic cylinder 11 is started, a piston shaft of the first hydraulic cylinder 11 drives a connecting rod 12 to move, the connecting rod 12 drives a sliding rod 13 to move along a rectangular filter plate 6, a liquid storage shell 6 is driven by a sliding rod 13 to move along a filter plate 7 to a solid filter plate 7 and then flows down to a solid filter plate 7 to a mixing filter plate 1, and then flows down to a solid filter plate 7 to a mixing filter plate 7 through a filter plate 1, and then flows down to the solid filter plate 7 is placed in the filter plate 1, and the solid filter plate 7 is connected with the solid filter plate 1 through the filter plate 7 is placed inside the filter plate 1, when the filtration is planned in advance, the filter plate 7 and the solid precipitate are brought back into the rectangular shell 5 through the first hydraulic cylinder 11, and the filter plate 7 is driven to transversely move in the liquid storage shell 1 through the piston shaft of the first hydraulic cylinder 11 in the process of mixing and stirring, so that the solid precipitate in the liquid can be effectively trapped, the solid precipitate in the composite acid solution is collected, then the collected precipitate is collected through the precipitate collecting mechanism, then the collected precipitate is subjected to test collection by each matched group, a group of raw material matching modes with the least precipitate are selected, the test matching of the components of the salt rock particles in different geological environments is realized, the raw material matching of the composite acid in the oil field well is selected, the influence of precipitation and blockage removal capability caused by the generation of the composite acidolysis in the later stage is avoided, and in the process of testing, the debugging reaction container can be used for automatically cleaning and collecting the precipitate in the internal solution, so that the method is convenient and quick.
As one embodiment of the invention, the stirring mechanism comprises a first motor 14 and a rotating shaft 15, wherein the rotating shaft 15 is rotatably connected to the bottom surface inside the liquid storage shell 1, the first motor 14 is fixedly arranged at the bottom of the liquid storage shell 1, the bottom end of the rotating shaft 15 penetrates through the liquid storage shell 1 and extends to the lower part of the liquid storage shell 1 and is fixedly connected to an output shaft of the first motor 14, and a plurality of stirring blades 16 are fixedly connected to the surface of the rotating shaft 15 in a circumferential array; when the acid storage shell 1 works, the first motor 14 is started, the output shaft of the first motor 14 drives the rotating shaft 15 to rotate, the stirring blades 16 on the surface of the rotating shaft 15 rotate along with the rotating shaft 15, and the acid storage shell 1 is internally provided with a plurality of acidulant raw materials for preparing the compound acid and other raw materials for stirring and mixing.
As one implementation mode of the invention, a rotating ring 17 is rotationally connected below the inner wall of the liquid storage shell 1, a sealing plate 18 is inserted on a rotating shaft 15, the sealing plate 18 is positioned above the rotating ring 17, the sealing plate 18 is sealed in the liquid storage shell 1 in a sliding way, the bottom of the sealing plate 18 is fixedly connected with a plurality of limiting pins 19, the limiting pins 19 are respectively inserted on the rotating ring 17 in a sliding way, the limiting pins 19 are respectively sleeved with a first spring 20, two ends of the first spring 20 are respectively fixedly connected on the sealing plate 18 and the rotating ring 17, a limiting ring 21 is fixedly connected on the rotating shaft 15 below the sealing plate 18, anti-skidding patterns are respectively arranged at the top of the limiting ring 21 and the bottom axis of the sealing plate 18, an air hole 22 is formed in the bottom of the liquid storage shell 1, a scraping inclined plane is formed in one side of the placing frame 9 far away from the rectangular frame 6, and a guiding inclined plane is formed in the top of the side surface of the sealing plate 18; in operation, when the solid sediments generated in the liquid storage shell 1 are stirred and mixed, the weight and the volumes of the solid sediments are different, the solid sediments with smaller volumes flow together with the mixed liquid in the process of rotating and flowing the mixed liquid, and are intercepted by the filter plate 7, the solid sediments with larger volumes can sink at the bottom of the liquid storage shell 1 due to larger self weight and are difficult to move along with the liquid, so that the solid sediments with larger particles are difficult to collect, the embodiment can solve the problems, and the embodiment can solve the problems by sliding and sealing the sealing plate 18 in the liquid storage shell 1, the liquid entering the liquid storage shell 1 is borne above the sealing plate 18, when the rectangular frame 6 and the placing frame 9 move into the liquid storage shell 1 along with the first cylinder, one side of the rectangular frame 6 and the placing frame 9 presses the guide inclined plane on the side surface of the sealing plate 18, the sealing plate 18 is extruded to move downwards, the first spring 20 is extruded to compress, when the sealing plate 18 slides downwards to seal and move, the air hole 22 at the bottom of the liquid storage shell 1 is used for exhausting air outwards, the sealing plate 18 moves downwards and approaches the limiting ring 21, so that the sealing plate 18 and anti-skid grains on the limiting ring 21 are contacted and extruded, the rotating shaft 15 drives the sealing plate 18 to move together, the rectangular frame 6 enters the liquid storage shell 1, the sealing plate 18 rotates, large-particle solid sediment at the top of the sealing plate 18 moves along with the rotation of the sealing plate 18, and contacts and scrapes through the top of the placing frame 9 and the sealing plate 18, when the large-particle solid sediment approaches the placing frame 9, the large-particle solid sediment enters the material receiving filter plate 10 inside the placing frame 9 along the guide inclined plane at one end of the placing frame 9 to collect the large-particle solid sediment, the sediment in the solution and the sediment precipitated to the bottom can be collected, so that the sediment can be fully collected, and the condition of inaccurate collection caused by small collection range is avoided.
As an implementation mode of the invention, a plurality of limit grooves 23 are formed in a circumferential array at the outer ring of the top of the sealing plate 18, two limit clamping blocks 24 are fixedly connected to the inner wall of the liquid storage shell 1, the two limit clamping blocks 24 are oppositely arranged, and the limit clamping blocks 24 are respectively positioned in the adjacent limit grooves 23; during operation, when multiple acidifiers need fully mix the acidifier in the initial stage of stirring and mixing, when filter 7 has not entered into stock solution casing 1, closing plate 18 can slowly rotate along with the rivers impact force that liquid flow produced, thereby lead to the big granule solid sediment at closing plate 18 top to be rocked along with closing plate 18 slowly rotates and produces, higher requirement has been improved for the filtration collection of filter 7, be unfavorable for thoroughly collecting the sediment, this embodiment can solve above problem, specific operational mode is as follows, be located spacing groove 23 through spacing fixture block 24, make rectangular frame 6 and place frame 9 get into stock solution casing 1 before, carry out spacing to closing plate 18, prevent closing plate 18 along with the liquid and slowly rotate, make the sediment that deposits on closing plate 18 can keep the sedimentation state, so that the later stage gathers intensively, when rectangular frame 6 and place frame 9's bottom extrusion 18 make closing plate 18 move down, thereby make closing plate 18 follow spacing fixture block 23 break away from in spacing groove 23, the filtration collection of filter plate 7 has improved higher requirement, be unfavorable for thoroughly collecting the sediment, this embodiment can be favorable to carrying out the clearance to the sediment to the overall sediment to the surface of the closing plate 18 through spacing fixture block 24, make rectangular frame 6 and place frame 9 get into stock solution casing 1, the clearance frame 9 gets into the sediment along with the horizontal direction of the clearance of the sediment, the clearance of the surface of the closing plate 18 has been realized, the clearance of the sediment is moved along with the side of the frame is moved, the clearance of the frame is favorable to the clearance of the sediment is placed on the surface of the face of the closing plate 18.
As one embodiment of the invention, the sediment collection mechanism comprises a placing groove 25, a drawing box 41 and a scraping mechanism, wherein the placing groove 25 is provided with the top of a placing frame 9, both sides of the placing frame 9 are provided with movable grooves 26, the bottom of a material receiving filter plate 10 is fixedly connected with two lantern rings 27, the bottom ends of the lantern rings 27 penetrate through the placing groove 25 and extend to the lower part of the placing groove 25, one side in the rectangular shell 5 is provided with a sliding groove 28, a plugging rod 29 is connected in the sliding groove 28 in a sliding way, one end of the plugging rod 29 is slidably inserted in the two lantern rings 27, the top of the rectangular shell 5 is fixedly provided with a second motor 30, an output shaft of the second motor 30 is fixedly connected with a screw rod 31, one end of the screw rod 31 penetrates through the rectangular shell 5 and extends to the inside of the sliding groove 28 and then is in threaded connection with the plugging rod 29, the drawing box 41 is slidably inserted in the position of the surface of the rectangular shell 5 close to the top, the drawing box 41 extends to the inside of the rectangular shell 5, the surface of the drawing box 41 is fixedly connected with a pull ring 42, the scraping mechanism is connected to the inner wall of the rectangular shell 5, the plugging rod 29 is slidably connected with the plugging rod 29 when the material receiving filter plate 10 moves to the rectangular shell 5 to the top of the rectangular shell 10, and the sediment collection mechanism is cleaned in the scraping the filter plate 10; during operation, when the material receiving filter plate 10 moves along with the placing frame 9 into the liquid storage shell 1, the lantern ring 27 fixedly connected with the bottom of the material receiving filter plate 10 is separated from the plugging rod 29, the material receiving filter plate 10 moves along with the placing frame 9 into the rectangular shell 5, the lantern ring 27 at the bottom of the material receiving filter plate 10 is inserted into the lantern ring 27 in the process of approaching the plugging rod 29, the second motor 30 is started, the output shaft of the second motor 30 drives the screw rod 31 to rotate, the screw rod 31 rotates, the plugging rod 29 moves upwards along the sliding groove 28 through the threaded connection with the plugging rod 29, one side of the material receiving filter plate 10 is located in the rectangular frame 6 and contacts with one side of the filter plate 7, the scraping can be carried out on one side of the filter plate 7 in the process of lifting the material receiving filter plate 10, the solid sediment adhesion residues on the filter plate 7 can be effectively cleaned and collected, the filter plate 7 is prevented from being carried into a mixed solution in the next filtering process, the filter plate 10 is pulled out to the filter plate 10 through the threaded connection with the plugging rod 29 in the process, the process of pulling the material receiving filter plate 31 is pulled up through the connecting box 40, the solid sediment can be cleaned and falls into the filter plate 41 through the supporting box 41 from the box 41 after the filter plate 10 moves to the filter plate 10, and the sediment can be cleaned up through the supporting box 41, and the sediment can be pulled out from the supporting box 41.
As one embodiment of the invention, the scraping mechanism comprises a squeeze plate 32 and a second hydraulic cylinder 35, wherein the squeeze plate 32 is positioned at a position close to the top inside the rectangular shell 5, connecting pins 33 are inserted on two sides of the squeeze plate 32 in a sliding manner, the connecting pins 33 are fixedly connected to the top inside the rectangular shell 5, second springs 34 are sleeved on the connecting pins 33, two ends of the second springs 34 are respectively fixedly connected to the squeeze plate 32 and the rectangular shell 5, the second hydraulic cylinder 35 is fixedly connected to the surface of the rectangular shell 5, a piston shaft of the second hydraulic cylinder 35 penetrates through the rectangular shell 5 and extends into the rectangular shell 5, then is fixedly connected with a connecting plate 3501, the top of the connecting plate 3501 is fixedly connected with a connecting frame 3502, a wedge plate 36 is fixedly connected to the connecting frame 3502, an extrusion inclined plane at the bottom of the wedge plate 36 is positioned at the top of the squeeze plate 32, one side of the connecting plate 3501 is fixedly connected with a propping shell 38, one side of the propping shell 38 close to the squeeze inclined plane is opened, and the end of the propping shell 38 is fixedly connected with a scraping plate 39; when the piston shaft of the second hydraulic cylinder 35 moves, the wedge plate 36 is driven to move, the limit of the extrusion plate 32 is canceled, the extrusion inclined surface of the supporting shell 38 enters between the extrusion plate 32 and the material receiving filter plate 10, the extrusion plate 32 moves upwards along the connecting pin 33, the second spring 34 is extruded to compress and deform, the scraping plate 39 in the supporting shell 38 scrapes solid sediment at the top of the material receiving filter plate 10 to one side in the process of moving the surface of the material receiving filter plate 10, the solid sediment is pushed into the material receiving shell 40, the solid sediment is collected in the material receiving shell 40, and the solid sediment is prevented from being mixed in a compound acid solution again after the material receiving filter plate 10 moves downwards.
As one embodiment of the present invention, the bottom of the scraping plate 39 is lapped on the edge of the top of the rectangular frame 6, and the scraping surface of the scraping plate 39 is an arc surface; during operation, the bottom through striking off the board 39 is set up in the border department at rectangular frame 6 top, is convenient for extrude extrusion board 32, and the striking off face of striking off the board 39 is the arcwall face, is convenient for scrape the solid precipitate that will strike off and rolls and move, avoids causing the hindrance to scraping the department.
As an embodiment of the present invention, a material receiving housing 40 is fixedly connected to the inner wall of the rectangular housing 5 at a position corresponding to the drawing box 41, and the drawing box 41 is slidably disposed inside the material receiving housing 40; in operation, when the solid precipitate falls into the receiving housing 40, it falls into the drawing box 41 in the receiving housing 40, and the drawing box 41 is drawn out from the penetration, so that the solid precipitate can be drawn out from the rectangular housing 5 and collected.
As one implementation mode of the invention, one side of the material receiving filter plate 10 far away from the filter plate 7 is rotationally connected with a material baffle plate 43, a torsional spring 44 is fixedly arranged at the joint of the material receiving filter plate 10 and the material baffle plate 43, and a guide inclined plane is arranged at the top of the material baffle plate 43; during operation, through connect striker plate 43 in one side of receiving filter plate 10, make the in-process that receiving filter plate 10 risen, prevent through striker plate 43 shelter from fixed deposit and drop from one side of receiving filter plate 10, be favorable to collecting the deposit of collecting, guide slope has been seted up at striker plate 43's top, when contact extrusion and scraping plate 39 contact with extrusion plate 32, make striker plate 43 rotate along articulated department and cancel the shelter from striker plate 10 one side through guide slope, make striker plate 43 resume original position after losing the extrusion through torsional spring 44's effect, avoid constructing the interference to the scraper and influence the collection to the deposit.
As one embodiment of the present invention, the inside of the placement frame 9 is fixedly connected with an inclined guiding block 45, one side of the inclined guiding block 45 and one side of the striker plate 43 are level with each other, and the height of the inclined guiding block 45 and the striker plate 43 is the same; in operation, solid sediment is guided by the inclined surface of the inclined surface guide block 45 and moves onto the receiving filter plate 10, and the baffle plate 43 is prevented from blocking the collection of the solid sediment by the inclined surface guide of the inclined surface guide block 45.
The working principle of the invention is as follows:
during operation, the prior art generally puts the formulated compound acid raw materials into a mixing device for mixing and blending to be mixed so as to prepare compound acid for blocking removal, but different actual conditions of blocked rock salt particles in different oil wells are different, components of the rock salt particles are different due to different geological environments, therefore, the compound acid is directly blended according to the conventional proportion, in the actual blocking removal process, acidic salt precipitates are generated in the reaction process of the compound acid and the rock salt particles, the blocking removal capability of the compound acid on the blocking is not facilitated, in the process of the compound acid blending experiment, the precipitates are inconvenient to collect and compare, the selection result of the compound acid raw material proportion is affected, the technical scheme can solve the problems, the specific operation mode is that a plurality of acidifiers for blending the compound acid are poured into a liquid storage shell 1 through a feed hopper 2, a stirring mechanism is utilized to mix and stir the acidifiers in the liquid storage shell 1, in the mixing and stirring process, a first hydraulic cylinder 11 is started, a piston shaft of the first hydraulic cylinder 11 drives a connecting rod 12 to move, the connecting rod 12 drives a sliding rod 13 to move along a rectangular filter plate 6, a liquid storage shell 6 is driven by a sliding rod 13 to move along a filter plate 7 to a solid filter plate 7 and then flows down to a solid filter plate 7 to a mixing filter plate 1, and then flows down to a solid filter plate 7 to a mixing filter plate 7 through a filter plate 1, and then flows down to the solid filter plate 7 is placed in the filter plate 1, and the solid filter plate 7 is connected with the solid filter plate 1 through the filter plate 7 is placed inside the filter plate 1, when the filtration is planned in advance, the filter plate 7 and the solid precipitate are brought back into the rectangular shell 5 through the first hydraulic cylinder 11, and the filter plate 7 is driven to transversely move in the liquid storage shell 1 through the piston shaft of the first hydraulic cylinder 11 in the process of mixing and stirring, so that the solid precipitate in the liquid can be effectively trapped, the solid precipitate in the composite acid solution is collected, then the collected precipitate is collected through the precipitate collecting mechanism, then the collected precipitate is subjected to test collection by each matched group, a group of raw material matching modes with the least precipitate are selected, the test matching of the components of the salt rock particles in different geological environments is realized, the raw material matching of the composite acid in the oil field well is selected, the influence of precipitation and blockage removal capability caused by the generation of the composite acidolysis in the later stage is avoided, and in the process of testing, the debugging reaction container can be used for automatically cleaning and collecting the precipitate in the internal solution, so that the method is convenient and quick.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the foregoing embodiments, but rather, the foregoing embodiments and description illustrate the principles of the invention, and that various changes and modifications may be effected therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (5)
1. The oil field oil-water well compound acid mixing and blending method is characterized by comprising the following steps of:
firstly, quantitatively adding a plurality of groups of oil-water well compound acid raw materials prepared in advance in different proportions into a debugging reaction container for independent experiments, and mixing and blending the oil-water well compound acid raw materials in a single group by the debugging reaction container;
step two, after the preparation is completed, rock salt particles sampled from an oil field are put into the prepared oil-water well compound acid in advance, then the reaction vessel is debugged to carry out sediment salvage for the same time, the salvaged sediment is collected, and then the next group of experiments are carried out;
step three, comparing the amount of each group of generated sediment, selecting a group of raw material proportioning mode with the least sediment, adopting the selected optimal raw material proportioning mode to blend the raw materials with the oil-water well compound acid, and adding the raw materials with the selected proportion into a large-scale blending reaction kettle for stirring, mixing and blending;
the debugging reaction container comprises a liquid storage shell (1), wherein a stirring mechanism is connected inside the liquid storage shell (1), and a feed hopper (2) is fixedly communicated with the top of the liquid storage shell (1);
the bottom of the side surface of the liquid storage shell (1) is fixedly communicated with a liquid outlet pipe (3), and a sealing valve (4) is fixedly arranged on the liquid outlet pipe (3);
the side of stock solution casing (1) fixedly communicates there is rectangular casing (5), rectangular frame (6) have been placed to the inside of rectangular casing (5), rectangular frame (6)'s inside fixedly connected with filter (7), rectangular frame (6) one side fixedly connected with places frame (9), material filter board (10) have been placed to the inside of placing frame (9), the bottom fixed mounting of rectangular casing (5) has first hydraulic cylinder (11), fixedly connected with connecting rod (12) on the piston shaft of first hydraulic cylinder (11), one side fixedly connected with slide bar (13) of connecting rod (12), one end of slide bar (13) runs through rectangular casing (5) and extends to rectangular casing (5) inside back fixedly connected with one side of rectangular frame (6), the inside top of rectangular casing (5) is connected with sediment collection mechanism;
the stirring mechanism comprises a first motor (14) and a rotating shaft (15), the rotating shaft (15) is rotationally connected to the bottom surface inside the liquid storage shell (1), the first motor (14) is fixedly installed at the bottom of the liquid storage shell (1), the bottom end of the rotating shaft (15) penetrates through the liquid storage shell (1) and extends to the lower part of the liquid storage shell (1) and is fixedly connected to an output shaft of the first motor (14), and the surface of the rotating shaft (15) is fixedly connected with a plurality of stirring blades (16) in a circumferential array;
the automatic scraping device is characterized in that a rotating ring (17) is rotatably connected to the lower portion of the inner wall of the liquid storage shell (1), a sealing plate (18) is inserted on the rotating shaft (15), the sealing plate (18) is located above the rotating ring (17), the sealing plate (18) is in sliding sealing inside the liquid storage shell (1), a plurality of limiting pins (19) are fixedly connected to the bottom of the sealing plate (18), the limiting pins (19) are all in sliding insertion on the rotating ring (17), first springs (20) are respectively sleeved on the limiting pins (19), two ends of each first spring (20) are respectively fixedly connected to the sealing plate (18) and the rotating ring (17), a limiting ring (21) is fixedly connected to the rotating shaft (15) below the sealing plate (18), anti-sliding threads are formed on the top of the limiting ring (21) and the bottom axle center of the sealing plate (18), air holes (22) are formed in the bottom of the shell (1), a side of the storage frame (9) far away from the rectangular frame (6) is provided with a scraping inclined surface, and the side surface of the sealing plate (18) is provided with a scraping inclined surface;
a plurality of limit grooves (23) are formed in the outer ring of the top of the sealing plate (18) in a circumferential array, two limit clamping blocks (24) are fixedly connected to the inner wall of the liquid storage shell (1), the two limit clamping blocks (24) are oppositely arranged, and the limit clamping blocks (24) are respectively located in the adjacent limit grooves (23);
the sediment collection mechanism comprises a placing groove (25), a drawing box (41) and a scraping mechanism, wherein the placing groove (25) is provided with the top of a placing frame (9), both sides of the placing frame (9) are provided with movable grooves (26), the bottom of a material receiving filter plate (10) is fixedly connected with two lantern rings (27), the bottom ends of the lantern rings (27) penetrate through the placing groove (25) and extend to the lower part of the placing groove (25), one side in the rectangular shell (5) is provided with a sliding groove (28), the sliding groove (28) is internally and slidably connected with a plugging rod (29), one end of the plugging rod (29) is slidably inserted into the two lantern rings (27), the top of the rectangular shell (5) is fixedly provided with a second motor (30), one end of the lead screw (31) penetrates through the rectangular shell (5) and extends to the lower part of the placing groove (25), is connected with the rectangular shell (29) in a sliding way, one end of the lead screw (31) is slidably inserted into the rectangular shell (41) and is connected with the top surface (41) of the rectangular shell (41), the scraping mechanism is connected to the inner wall of the rectangular shell (5), and when the material receiving filter plate (10) moves to the top end of the rectangular shell (5), the scraping mechanism scrapes and cleans sediment collected on the material receiving filter plate (10) into the drawing box (41);
the scraping mechanism comprises a squeezing plate (32) and a second hydraulic cylinder (35), wherein the squeezing plate (32) is positioned at the position, close to the top, inside the rectangular shell (5), of the rectangular shell (5), connecting pins (33) are inserted in a sliding mode on two sides of the squeezing plate (32), the connecting pins (33) are fixedly connected to the top inside the rectangular shell (5), second springs (34) are sleeved on the connecting pins (33), two ends of the second springs (34) are fixedly connected to the squeezing plate (32) and the rectangular shell (5) respectively, the second hydraulic cylinder (35) is fixedly connected to the surface of the rectangular shell (5), a piston shaft of the second hydraulic cylinder (35) penetrates through the rectangular shell (5) and extends to the inside of the rectangular shell (5), a connecting plate (3501) is fixedly connected to the inside the rectangular shell (5), a connecting frame (3502) is fixedly connected to the top of the connecting plate (3501), a wedge plate (36) is fixedly connected to the connecting frame (3502), the two ends of the second springs (34) are fixedly connected to the squeezing plate (32) and the squeezing plate (38) is fixedly connected to one side of the squeezing plate (38) of the rectangular shell (5), the end part of the supporting shell (38) is fixedly connected with a scraping plate (39).
2. The method for mixing and blending oil-water well compound acid in oil field according to claim 1, wherein the bottom of the scraping plate (39) is lapped on the edge of the top of the rectangular frame (6), and the scraping surface of the scraping plate (39) is an arc surface.
3. The oil field oil-water well compound acid mixing and blending method according to claim 2, wherein a material receiving shell (40) is fixedly connected to the inner wall of the rectangular shell (5) at a position corresponding to the drawing box (41), and the drawing box (41) is slidably arranged in the material receiving shell (40).
4. The oil field oil-water well compound acid mixing and blending method according to claim 2, wherein one side of the material receiving filter plate (10) far away from the filter plate (7) is rotationally connected with a material blocking plate (43), a torsional spring (44) is fixedly installed at the joint of the material receiving filter plate (10) and the material blocking plate (43), and a guide inclined plane is formed at the top of the material blocking plate (43).
5. The method for mixing and blending the oil-water well compound acid in the oil field according to claim 4, wherein an inclined guide block (45) is fixedly connected to the inside of the placement frame (9), one side of the inclined guide block (45) and one side of the baffle plate (43) are flush with each other, and the heights of the inclined guide block (45) and the baffle plate (43) are the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210835056.3A CN114984804B (en) | 2022-07-15 | 2022-07-15 | Mixed blending method for oil field oil-water well compound acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210835056.3A CN114984804B (en) | 2022-07-15 | 2022-07-15 | Mixed blending method for oil field oil-water well compound acid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114984804A CN114984804A (en) | 2022-09-02 |
| CN114984804B true CN114984804B (en) | 2023-04-25 |
Family
ID=83022596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210835056.3A Active CN114984804B (en) | 2022-07-15 | 2022-07-15 | Mixed blending method for oil field oil-water well compound acid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114984804B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214233586U (en) * | 2020-12-22 | 2021-09-21 | 兰州凯宏中原石油科技有限公司 | Compound acid mixing device for plugging removal of oil-water well in ultra-low permeability oil field |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1279469C (en) * | 1987-01-27 | 1991-01-29 | Curtis W. Crowe | Composition and method for fluid loss control in acid fracturing of earthen formations |
| CN102775980B (en) * | 2012-07-17 | 2014-07-02 | 大庆井升伟业油田技术服务有限公司 | Acidizing block remover suitable for complex lithologic reservoir |
| CN103808886A (en) * | 2012-11-13 | 2014-05-21 | 李兰 | Test method of binary compound surfactant property |
| CN209179723U (en) * | 2018-09-18 | 2019-07-30 | 山东大东联石油设备有限公司 | A kind of stifled thin henchnmrk test device of chemical agent tune |
| CN114684954A (en) * | 2020-12-31 | 2022-07-01 | 新疆中核天山铀业有限公司 | Reverse osmosis recycling method and device for uranium mine hydrochloric acid well-flushing waste liquid |
| CN112940706B (en) * | 2021-02-03 | 2022-07-26 | 成都劳恩普斯科技有限公司 | Integrated composite acid and preparation method thereof |
-
2022
- 2022-07-15 CN CN202210835056.3A patent/CN114984804B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214233586U (en) * | 2020-12-22 | 2021-09-21 | 兰州凯宏中原石油科技有限公司 | Compound acid mixing device for plugging removal of oil-water well in ultra-low permeability oil field |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114984804A (en) | 2022-09-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114984804B (en) | Mixed blending method for oil field oil-water well compound acid | |
| CN117582715B (en) | Filter device for silver nitrate purifying equipment and use method thereof | |
| CN214020759U (en) | Soil detection is with mixing reaction device | |
| CN213433337U (en) | Processing apparatus that waste water was used is slaughtered to dirty and of beasts and birds excrement | |
| CN214788020U (en) | Anti-blocking self-suction type sewage pump | |
| CN216457271U (en) | Filter equipment with automatic purification function | |
| CN112915824B (en) | Preparation process of environment-friendly water-based ink | |
| CN218786560U (en) | Oil field is prevented dirty water corrosion and is removed scale deposit processing apparatus | |
| CN219511912U (en) | Soil diluting device for soil detection | |
| CN212142443U (en) | Synthesizer is used in emulsified oil production | |
| CN220513489U (en) | Lithium carbonate precipitation equipment based on oil-gas field produced water | |
| CN219539538U (en) | Filter equipment is used in diesel oil production convenient to it is clean | |
| CN220328019U (en) | Rare earth carbonate lotion equipment | |
| CN220098689U (en) | Oily sewage treatment device | |
| CN216837442U (en) | Municipal works are with novel sewage treatment plant | |
| CN218306558U (en) | Discharge end is with crossing jar | |
| CN218589795U (en) | Oil development prevents blockking up gravel filter equipment | |
| CN211537400U (en) | Stirring kettle for bromamine acid | |
| CN220034163U (en) | Efficient mud-water separation device | |
| CN217312993U (en) | Environment-friendly treatment device for electrolytic manganese slag and composition thereof | |
| CN220078975U (en) | Coal-based synthetic oil a-olefin extraction and separation device | |
| CN220502710U (en) | Industrial wastewater recovery device | |
| CN220385899U (en) | Hydraulic engineering dredging device | |
| CN218339148U (en) | Muddy water bypass equipment of muddy water balance push bench | |
| CN215276751U (en) | Integrated temporary plugging agent manufacturing 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 |