CN116492963B - Configuration method and application of ultra-low permeability oilfield deep self-seepage adjusting acid - Google Patents
Configuration method and application of ultra-low permeability oilfield deep self-seepage adjusting acid Download PDFInfo
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- CN116492963B CN116492963B CN202310505247.8A CN202310505247A CN116492963B CN 116492963 B CN116492963 B CN 116492963B CN 202310505247 A CN202310505247 A CN 202310505247A CN 116492963 B CN116492963 B CN 116492963B
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000002253 acid Substances 0.000 title claims abstract description 14
- 230000035699 permeability Effects 0.000 title claims description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 84
- 238000007789 sealing Methods 0.000 claims abstract description 33
- 239000012224 working solution Substances 0.000 claims abstract description 28
- 230000001105 regulatory effect Effects 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims description 53
- 238000002955 isolation Methods 0.000 claims description 49
- 238000007599 discharging Methods 0.000 claims description 27
- 230000001276 controlling effect Effects 0.000 claims description 20
- 238000009434 installation Methods 0.000 claims description 20
- 239000003999 initiator Substances 0.000 claims description 19
- 238000002156 mixing Methods 0.000 claims description 19
- 239000012530 fluid Substances 0.000 claims description 18
- 239000007787 solid Substances 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 15
- 210000000078 claw Anatomy 0.000 claims description 13
- 239000002994 raw material Substances 0.000 claims description 13
- 150000007524 organic acids Chemical class 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000000926 separation method Methods 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 239000003381 stabilizer Substances 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 239000003129 oil well Substances 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims description 2
- 230000009466 transformation Effects 0.000 abstract description 3
- 230000003028 elevating effect Effects 0.000 abstract 1
- 230000008569 process Effects 0.000 description 7
- 239000002699 waste material Substances 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 230000005484 gravity Effects 0.000 description 4
- -1 iron ion Chemical class 0.000 description 4
- 230000020477 pH reduction Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000005323 carbonate salts Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
- E21B43/27—Methods for stimulating production by forming crevices or fractures by use of eroding chemicals, e.g. acids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/02—Feed or outlet devices; Feed or outlet control devices for feeding measured, i.e. prescribed quantities of reagents
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- General Chemical & Material Sciences (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention relates to the technical field of oil and gas reservoir transformation, in particular to a method for preparing self-seepage regulating acid at the deep part of an ultra-low seepage oilfield and application thereof. Through being provided with adjustment mechanism, when the inside working solution of reaction kettle is consumed soon down, restart agitator motor, elevating system and sealing mechanism and carry out the secondary and allocate, can allocate once again after allocating once, can use immediately after allocating.
Description
Technical Field
The invention relates to the technical field of transformation of oil and gas reservoirs, in particular to a configuration method and application of self-seepage adjusting acid in the deep part of an ultra-low seepage oil field.
Background
The low permeability oil field refers to an oil field with low permeability of an oil reservoir, low abundance and low single well productivity, the ratio of the low permeability oil reservoir reserves is high in the ascertained reserves, the development potential is huge, and acidification is a main yield increasing measure for modifying a carbonate reservoir, so that organic acid reacts with carbonate salt to form wormholes in a stratum, and the wormholes are communicated with an oil reservoir seepage channel to improve the yield;
the prior art discloses a part of Chinese patent publication No. CN110218558A related to water control and acidification of water-containing oil wells in oilfield development, and discloses an organic acid system for acidizing and reforming a carbonate reservoir and a preparation method thereof, wherein the organic acid system comprises 45-60% of organic acid liquid, 0.3-2% of corrosion inhibitor, 0.2-1% of EDTA, 0.03-1.5% of retarder, 0.03-1.5% of iron ion stabilizer, 0.1-1% of cleanup additive and the balance of water. The corrosion inhibitor is matched with other components, so that corrosion under the condition of strong acid can be prevented, acidification of pipeline equipment is slowed down, corrosion of equipment and a pipe column is reduced, acid rock reaction rate is reduced, acid corrosion crack length is improved, and the effect of deep acidification transformation is achieved;
the working solution prepared in the technology takes the organic acid solution as the raw material, and is prepared in advance when in use, the storage and adjustment of the organic acid solution are more severe, the requirement on the sealing performance is higher, the content of the organic acid in the working solution is changed due to the fact that the organic acid solution may volatilize in the transportation process, the transportation is not facilitated, the injection amount of the working solution is difficult to control, the excessive configuration is generally carried out when the working solution is prepared in advance, the defects when in application are avoided, the accurate control quantity is difficult to prepare in advance, and certain waste is generated.
Disclosure of Invention
The invention aims to solve the defects that working fluid in the prior art is unfavorable for storage and transportation and excessive waste exists when being prepared in advance, and provides a method for preparing self-seepage regulating acid in a deep part of an ultra-low permeability oilfield and application thereof.
In order to achieve the above purpose, the invention adopts the following technical scheme: a method for preparing self-seepage regulating acid in deep part of ultra-low permeability oilfield comprises the following steps:
s1: installing the configuration device on injection equipment of an oil well at a working site, and injecting organic acid liquor, a slow release agent, an iron ion stabilizer and a fixed initiator which are configured in advance into the configuration device;
s2: the raw materials are stirred and mixed in the configuration device through stirring, the solid raw materials such as a solid initiator automatically and quantitatively fall during configuration, working solution is generated after the mixing reaction is completed, and the working solution is injected after the configuration is completed;
s3: repeating the steps to perform configuration again after the working fluid in the configuration device is consumed to a certain amount;
the configuration device in S1 to S3 comprises an upper reaction kettle, wherein the lower end of the upper reaction kettle is fixedly connected with a lower reaction kettle, a stirring mechanism for mixing is arranged at the middle position of the upper end surface of the upper reaction kettle, a feeding hole for feeding is fixedly communicated with the upper surface of the upper reaction kettle near the edge position, an adjusting mechanism for controlling working solution to be prepared is arranged in the feeding hole, a water inlet for water inflow is fixedly communicated with the position of the outer side surface of the lower reaction kettle near the upper end, a discharge hole is formed in the middle position of the inner lower end of the lower reaction kettle, and a solid discharging mechanism for adding a fixed initiator is arranged at the inner top end of the lower reaction kettle;
the solid discharging mechanism comprises a storage disc, the upper end of the storage disc is fixedly connected with the inner wall of the top end of the upper reaction kettle, a storage chamber for storing a fixed initiator is formed in the storage disc, and a quantitative discharging mechanism for controlling discharging is further arranged on the lower surface of the storage disc.
Preferably, the stirring mechanism comprises a sleeve pipe which is fixedly connected to the middle position of the upper end surface of the upper reaction kettle, the sleeve pipe is communicated with the interior of the upper reaction kettle, a stirring motor is fixedly arranged on the upper end surface of the sleeve pipe, an output shaft at the lower end of the stirring motor is fixedly connected with a stirring rod, the stirring rod penetrates through the sleeve pipe and enters the interior of the upper reaction kettle, and stirring blades are arranged on the surface of the stirring rod.
Preferably, the regulating mechanism comprises a controller and a vertical chute, the vertical chute is arranged on the inner wall of the lower reaction kettle, the inside of the vertical chute is connected with a vertical sliding block in a sliding manner, one end of the vertical sliding block, which is far away from the lower reaction kettle, is fixedly connected with a separation disc, the position, close to the upper end, of the inner wall of the lower reaction kettle is fixedly connected with an upper positioning ring, the position, close to the lower end, of the inner wall of the lower reaction kettle is fixedly connected with a lower positioning ring, a lifting mechanism for controlling the lifting of the separation disc is arranged in the vertical chute, a connecting port is arranged at the middle position of the separation disc, and a sealing mechanism for controlling the opening and closing of the connecting port is arranged in the separation disc;
the surface mounting of lower holding ring has the control the pressure switch that the controller opened, the controller with agitator motor electric connection.
Preferably, the lifting mechanism comprises a second magnetic block and a second electromagnet, the second magnetic block is fixedly connected to the upper end face of the vertical sliding block, the second electromagnet is embedded and mounted at the upper end of the inside of the vertical sliding groove, the second electromagnet is parallel to the upper positioning ring, and the second electromagnet is electrically connected with the controller.
Preferably, the sealing mechanism comprises a sliding cavity, the sliding cavity is arranged in the isolation disc and is close to the position of the sliding cavity, a sealing plate is connected in the sliding cavity in a sliding manner, a first electromagnet is fixedly connected to the middle position of one side surface of the sealing plate away from the connecting port, a first magnetic block is fixedly connected to the position of the inner wall of the sealing plate close to the first electromagnet, and return springs are fixedly connected to the positions of two sides of the sealing plate away from the connecting port;
the first electromagnet is electrically connected with the controller.
Preferably, the quantitative discharging mechanism comprises fixing columns, the fixing columns are located at the outer side positions of the storage trays, the upper ends of the fixing columns are fixedly connected with the inner wall of the upper reaction kettle, the lower ends of the fixing columns are rotatably connected with rotating trays, discharging openings are formed in the surfaces of the rotating trays, the number of the storage chambers is sixteen, and the size of the discharging openings is the same as that of the storage chambers;
the lower surface of the rotating disc is fixedly provided with a rotating mechanism for controlling the feed opening to rotate at equal intervals.
Preferably, the rotating mechanism comprises a ratchet mechanism and a pushing mechanism for touching the ratchet to rotate, the ratchet mechanism comprises a connecting rod and a one-way bearing, the one-way bearing is fixedly arranged at a position close to the center of the lower surface of the rotating disc, and the rotating disc is rotationally connected with the stirring rod through the one-way bearing;
the connecting rod is fixedly arranged at the edge position of the lower surface of the rotating disc, the lower end of the connecting rod is fixedly connected with a rotating wheel, and sixteen ratchets are circumferentially arranged at the edge position of the outer side surface of the rotating wheel in a fixed connection mode.
Preferably, the pushing mechanism comprises a first installation sleeve, the first installation sleeve is fixedly installed on the inner wall of the upper reaction kettle, a second installation sleeve parallel to the first installation sleeve is also installed on the inner wall of the upper reaction kettle, the first installation sleeve and the second installation sleeve are both in sliding connection with a transverse ejector rod, one end of the transverse ejector rod is fixedly connected with a connecting block, one end of the transverse ejector rod, which is far away from the connecting block, is fixedly connected with a connecting seat, a limiting ring is fixedly installed on the surface of the transverse ejector rod at a position between the first installation sleeve and the second installation sleeve, a connecting spring sleeved on the outer side surface of the transverse ejector rod is fixedly connected with one end surface of the limiting ring, a deflection claw is rotatably connected inside the connecting seat, and a torsion spring for resetting is installed at the connecting position of the connecting seat and the deflection claw.
The surface of the connecting block, which is far away from one side of the first mounting sleeve, is fixedly connected with a sliding plate, the upper end and the lower end of the sliding plate are in sliding connection with a linear sliding rail, the rear surface of the linear sliding rail is fixedly connected with a mounting plate, the mounting plate is fixedly connected with the inner wall of the upper reaction kettle, a second chute is formed in the surface of the sliding plate, a top sliding rod is in sliding contact between the sliding plate and the mounting plate, sliding columns are fixedly connected to the upper end of the surface of the top sliding rod, and the sliding columns are in sliding connection with the inside of the second chute;
the bottom of top moves the slide bar runs through the linear slide rail just extends to the below of linear slide rail, the outside sliding connection of top moves the slide bar has lower mount pad, one side surface of lower mount pad pass through the horizontal pole with go up reation kettle's inner wall fixed connection, the lower extreme laminating of top moves the slide bar has and is located top moves the slide bar under, top move the lower extreme of slide bar with isolation disc fixed connection.
Preferably, a fixed mounting seat is fixedly arranged on the outer side surface of the lower reaction kettle, and a valve for controlling the opening and closing of the discharge hole is arranged in the discharge hole at the lower end of the lower reaction kettle.
Preferably, the discharge port of the configuration device is communicated with an external liquid injection mechanism through a pipeline, and working liquid prepared by the configuration device in the preparation method is applied.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the adjusting mechanism is arranged, when the working fluid in the lower reaction kettle is rapidly consumed, the isolation disc slides downwards to be attached to the lower positioning ring, the isolation disc can touch the pressure switch on the surface of the lower positioning ring, the pressure switch transmits a signal to the controller, the stirring motor, the lifting mechanism and the sealing mechanism are restarted to carry out secondary blending, the next blending can be carried out after the one-time blending is finished, the blending is ready to use, the waste is reduced, meanwhile, the transportation and the preservation of the working fluid are avoided, and the device can be used immediately after the configuration is finished.
According to the quantitative discharging mechanism, in the process of configuration, the isolation disc and the jacking rod are both positioned at the uppermost end, after the first configuration is finished, the isolation disc and the jacking rod are lifted to the original positions after the working solution after the configuration is consumed, the jacking slide rod is pushed upwards in the lifting process of the jacking rod, the jacking slide rod pushes the sliding plate to slide towards one side close to the connecting block, the sliding column slides along the second chute, the connecting block is pushed to move to squeeze the connecting spring, the connecting seat and the deflecting claw are pushed to move, the deflecting claw pushes one ratchet close to the rotating jaw to rotate and be attached to the next ratchet when moving, the rotating wheel rotates at the moment, so that the discharging opening is aligned with the other storage chamber, discharging is completed, the discharging fixing initiator can be automatically quantified when the configuration is carried out, and the configuration accuracy is kept.
Drawings
FIG. 1 is a schematic diagram of a configuration method of the present invention;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is a schematic perspective view of the present invention taken along the midline;
FIG. 4 is an enlarged view of a portion of FIG. 3A in accordance with the present invention;
FIG. 5 is a schematic view of the structure of the present invention taken along the upper end surface of the separator;
FIG. 6 is a plan view of the structure of FIG. 3 in accordance with the present invention;
FIG. 7 is an enlarged view of a portion of B of FIG. 6 in accordance with the present invention;
FIG. 8 is a schematic view of a storage chamber according to the present invention;
FIG. 9 is a schematic structural view of the quantitative discharging mechanism of the present invention;
FIG. 10 is an enlarged view of a portion of C of FIG. 9 in accordance with the present invention;
fig. 11 is a schematic view of the mounting structure of the deflecting claw of the present invention.
In the figure: 1. feeding the mixture into a reaction kettle; 101. a reaction kettle is arranged; 102. fixing the mounting base; 103. a valve; 104. a discharge port; 2. a feed inlet; 201. a water inlet; 3. a ferrule; 4. a stirring motor; 401. a controller; 402. a stirring rod; 403. stirring blades; 5. a spacer disc; 501. a connection port; 502. a sliding chamber; 503. a sealing plate; 504. a first electromagnet; 505. a return spring; 506. a first magnetic block; 6. a vertical chute; 601. a vertical slider; 602. a second magnetic block; 603. a second electromagnet; 604. an upper positioning ring; 605. a lower positioning ring; 606. a pressure switch; 7. a storage tray; 701. a storage chamber; 702. fixing the column; 703. a rotating disc; 704. a connecting rod; 705. a ratchet; 706. a rotating wheel; 707. a one-way bearing; 708. a feed opening; 8. a linear slide rail; 801. a mounting plate; 802. a sliding column; 803. a sliding plate; 804. a lower mounting seat; 805. pushing the movable rod; 806. pushing the sliding rod; 807. a second chute; 9. a connecting block; 901. a first mounting sleeve; 902. a transverse ejector rod; 903. a limiting ring; 904. a connecting spring; 905. a second mounting sleeve; 906. a connecting seat; 907. and (5) deflecting the claw.
Description of the embodiments
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 disposing the self-seepage regulating acid in the deep part of the ultra-low permeability oilfield as shown in fig. 1 to 11 comprises the following steps:
s1: installing the configuration device on injection equipment of an oil well at a working site, and injecting organic acid liquor, a slow release agent, an iron ion stabilizer and a fixed initiator which are configured in advance into the configuration device;
s2: the raw materials are stirred and mixed in the configuration device through stirring, the solid raw materials such as a solid initiator automatically and quantitatively fall during configuration, working solution is generated after the mixing reaction is completed, and the working solution is injected after the configuration is completed;
s3: repeating the steps to perform configuration again after the working fluid in the configuration device is consumed to a certain amount;
the configuration device in S1 to S3 comprises an upper reaction kettle 1, wherein the lower end of the upper reaction kettle 1 is fixedly connected with a lower reaction kettle 101, a stirring mechanism for mixing is arranged at the middle position of the upper end surface of the upper reaction kettle 1, a feed inlet 2 for feeding is fixedly communicated with the position, close to the edge, of the upper surface of the upper reaction kettle 1, an adjusting mechanism for controlling working fluid to be prepared is arranged in the feed inlet 2, a water inlet 201 for feeding water is fixedly communicated with the position, close to the upper end, of the outer side surface of the lower reaction kettle 101, a discharge port 104 is arranged at the middle position of the inner lower end of the lower reaction kettle 101, and a solid discharging mechanism for adding a fixed initiator is arranged at the inner top end of the lower reaction kettle 101;
the solid blanking mechanism comprises a storage disc 7, the upper end of the storage disc 7 is fixedly connected with the inner wall of the top end of the upper reaction kettle 1, a storage chamber 701 for storing a fixed initiator is formed in the storage disc 7, and a quantitative blanking mechanism for controlling blanking is further arranged on the lower surface of the storage disc 7;
the concrete working mode is as follows, when processing, firstly, connect discharge gate 104 with injection apparatus, then pour into the liquid raw materials of mechanical acid liquid, slow-release agent and iron ion stabilizer respectively by a plurality of feed inlets 2, send rivers into inside the reactor 1 through water inlet 201 simultaneously, solid raw materials such as solid initiator are by solid unloading mechanism unloading, the configuration is accomplished by mixing by rabbling mechanism after the raw materials get into inside the reactor 1, the operating fluid after the configuration gets into in the reactor 101 down through adjustment mechanism, pour into by discharge gate 104 outflow, after the operating fluid in reactor 1 consumes down, the inside configuration of reactor 1 again.
As a further embodiment of the invention, the stirring mechanism comprises a sleeve pipe 3, the sleeve pipe 3 is fixedly connected to the middle position of the upper end surface of the upper reaction kettle 1, the sleeve pipe 3 is communicated with the interior of the upper reaction kettle 1, a stirring motor 4 is fixedly arranged on the upper end surface of the sleeve pipe 3, a stirring rod 402 is fixedly connected to an output shaft at the lower end of the stirring motor 4, the stirring rod 402 passes through the sleeve pipe 3 to enter the interior of the upper reaction kettle 1, and stirring blades 403 are arranged on the surface of the stirring rod 402;
the specific working mode is as follows, when stirring, stirring motor 4 is started to drive stirring rod 402 to rotate, and stirring blade 403 on the surface of stirring rod 402 is used for moderating the raw materials in upper reaction kettle 1.
As a further embodiment of the invention, the adjusting mechanism comprises a controller 401 and a vertical chute 6, the vertical chute 6 is arranged on the inner wall of the lower reaction kettle 101, a vertical slide block 601 is connected in a sliding manner in the vertical chute 6, one end of the vertical slide block 601, which is far away from the lower reaction kettle 101, is fixedly connected with a separation disc 5, the position, which is close to the upper end, of the inner wall of the lower reaction kettle 101 is fixedly connected with an upper positioning ring 604, the position, which is close to the lower end, of the inner wall of the lower reaction kettle 101 is fixedly connected with a lower positioning ring 605, a lifting mechanism for controlling the separation disc 5 to lift is arranged in the vertical chute 6, a connecting port 501 is arranged in the middle position of the separation disc 5, and a sealing mechanism for controlling the opening and closing of the connecting port 501 is arranged in the separation disc 5;
the surface of the lower positioning ring 605 is provided with a pressure switch 606 for controlling the controller 401 to be started, and the controller 401 is electrically connected with the stirring motor 4;
in the prior art, the working solution is prepared in advance, and is generally prepared excessively in advance, so that the defects in application are avoided, the quantity is difficult to control accurately in advance, certain waste is generated, and the working solution is difficult to store;
the technical scheme can solve the problems, when working solution is configured, the controller 401 starts the stirring motor 4 to stir, at the moment, the lifting mechanism controls the isolation disc 5 to be positioned at the uppermost end, the sealing mechanism also controls the connection port 501 to be closed, at the moment, the upper reaction kettle 1 and the lower reaction kettle 101 are isolated by the isolation disc 5, and when the working solution in the upper reaction kettle 1 is configured, the controller 401 is closed to stop configuration;
at this time, the lifting mechanism and the sealing mechanism stop working, the sealing mechanism opens the connecting port 501, the lifting mechanism stops limiting the isolation disc 5, and the working fluid flows into the lower reaction kettle 101 through the connecting port 501;
it should be noted that, the isolation disc 5 can float on the surface of the working solution through buoyancy, when the working solution completely enters the lower reaction kettle 101, the isolation disc 5 is close to the upper end of the lower reaction kettle 101 due to buoyancy;
when the working solution in the reaction kettle 101 is rapidly consumed, the isolation disc 5 can slide downwards to be attached to the lower positioning ring 605, the isolation disc 5 can touch the pressure switch 606 on the surface of the lower positioning ring 605, the pressure switch 606 transmits signals to the controller 401, the stirring motor 4, the lifting mechanism and the sealing mechanism are restarted to carry out secondary blending, the next blending can be carried out after the one-time blending is finished, the next blending is carried out, the waste is reduced, meanwhile, the transportation and the preservation of the working solution are avoided, and the device can be immediately used after the configuration is finished.
As a further embodiment of the present invention, the lifting mechanism includes a second magnetic block 602 and a second electromagnet 603, the second magnetic block 602 is fixedly connected to the upper end surface of the vertical sliding block 601, the second electromagnet 603 is embedded and installed at the upper end of the inside of the vertical sliding chute 6, the second electromagnet 603 is parallel to the upper positioning ring 604, and the second electromagnet 603 is electrically connected to the controller 401;
the specific working mode is that the second electromagnet 603 is controlled to be started by the controller 401 through an electric signal, when the stirring motor 4 is started when the controller 401 is started, the second electromagnet 403 is also electrified to be started, the magnetic induction intensity of the second electromagnet 403 is increased, the second electromagnet is adsorbed by the attached second magnetic block 602, the isolation disc 5 is driven to be attached to the upper positioning ring 604 upwards, the isolation disc 5 is at the uppermost end at the moment, after the configuration is finished, the second electromagnet 403 and the stirring motor 4 are powered off simultaneously, the isolation disc 5 falls under the gravity, then is floated by the liquid level of the working liquid in the lower reaction kettle 101, and the height of the working liquid in the lower reaction kettle 101 is the same;
when the working fluid in the lower reaction kettle 101 is rapidly consumed, the isolation disc 5 slides downwards to be attached to the lower positioning ring 605, the isolation disc 5 touches the pressure switch 606 on the surface of the lower positioning ring 605, the pressure switch 606 transmits a signal to the controller 401, the second electromagnet 403 is restarted, and the isolation disc is adsorbed to return to the upper end.
As a further embodiment of the invention, the sealing mechanism comprises a sliding cavity 502, the sliding cavity 502 is arranged in the isolation disc 5 and is close to the sliding cavity 502, a sealing plate 503 is connected in the sliding cavity 502 in a sliding manner, a first electromagnet 504 is fixedly connected to the middle position of one side surface of the sealing plate 503 far away from the connecting port 501, a first magnetic block 506 is fixedly connected to the inner wall of the sealing plate 503 close to the first electromagnet 504, and return springs 505 are fixedly connected to the two side surfaces of the sealing plate 503 far away from the connecting port 501;
the first electromagnet 504 is electrically connected with the controller 401;
the specific working mode is that when the first electromagnet 504 is controlled to be started by the controller 401 through an electric signal, and the controller 401 is started, when the stirring motor 4 is started when the controller 401 is started, the first electromagnet 504 is electrified and started, the magnetic induction intensity of the first electromagnet 504 is increased, the magnetic poles of the first electromagnet 504 and the adjacent end of the adjacent first magnetic block 506 are the same, repulsive force is generated to push the sealing plate 503 to move the sealing connection port 501, at the moment, the upper reaction kettle 1 and the lower reaction kettle 101 are sealed, when the internal structure of the upper reaction kettle 1 is configured to be closed, the first electromagnet 504 is also powered off, the reset spring 505 pulls the sealing plate 503 to reset and open the connection port 501, and at the moment, the working solution configured in the upper reaction kettle 1 flows into the lower reaction kettle;
when the working fluid in the lower reaction kettle 101 is rapidly consumed, the isolation disc 5 slides down to be attached to the lower positioning ring 605, the isolation disc 5 touches the pressure switch 606 on the surface of the lower positioning ring 605, the pressure switch 606 transmits a signal to the controller 401, the second electromagnet 403 is restarted, and the connection port 501 is resealed.
As a further embodiment of the invention, the quantitative discharging mechanism comprises fixed columns 702, the fixed columns 702 are positioned at the outer side positions of the storage trays 7, the upper ends of the fixed columns 702 are fixedly connected with the inner wall of the upper reaction kettle 1, the lower ends of the fixed columns 702 are rotatably connected with rotating discs 703, discharging openings 708 are formed in the surfaces of the rotating discs 703, the number of the storage chambers 701 is sixteen, and the size of each discharging opening 708 is the same as that of each storage chamber 701;
a rotating mechanism for controlling the feed opening 708 to rotate equidistantly is fixedly arranged on the lower surface of the rotating disc 703;
the above-mentioned problem can be solved by this technical scheme, the specific working mode is as follows, it is to be noted that, can dismantle between the reaction kettle 1 and the reaction kettle 101 down, add solid initiator into eight storage chambers 701 in storage disk 7 inside before the work, then install rolling disk 703, make feed opening 708 and one of them storage chambers 701 align, seal-mount reaction kettle 1 and reaction kettle 101 down before processing, the solid initiator content in single storage chamber 701 is the required volume of configuration once, when the reaction kettle 1 is installed, the raw materials in one storage chamber 701 that aligns with feed opening 708 can fall, prepare for configuration once, after configuration once, through the adjustment of slewing mechanism apart from rolling disk 703, make the feed opening 708 on rolling disk 703 surface align with another storage chamber 701, carry out the secondary unloading, can be in the automatic solid initiator of ration go into inside reaction kettle 1 of spilling into at every time configuration, keep the accurate of fixed raw materials.
As a further embodiment of the present invention, the rotating mechanism comprises a ratchet mechanism and a pushing mechanism for touching the rotation of the ratchet, the ratchet mechanism comprises a connecting rod 704 and a one-way bearing 707, the one-way bearing 707 is fixedly arranged at a position close to the center of the lower surface of the rotating disk 703, and the rotating disk 703 is rotatably connected with the stirring rod 402 through the one-way bearing 707;
the connecting rod 704 is fixedly arranged at the edge position of the lower surface of the rotating disc 703, the lower end of the connecting rod 704 is fixedly connected with the rotating wheel 706, and sixteen ratchets 705 are circumferentially arranged at the edge position of the outer side surface of the rotating wheel 706 in a fixed connection mode;
the rotating wheel 706 is rotatably connected to the stirring rod 402 via a one-way bearing 707, and the positions of the eight ratchets 705 correspond to the positions of the eight storage chambers 701, so that the rotating wheel 706 can only rotate in one direction by the one-way bearing 707.
As a further embodiment of the invention, the jacking mechanism comprises a first installation sleeve 901, the first installation sleeve 901 is fixedly installed on the inner wall of the upper reaction kettle 1, a second installation sleeve 905 parallel to the first installation sleeve 901 is also installed on the inner wall of the upper reaction kettle 1, the inside of each of the first installation sleeve 901 and the second installation sleeve 905 is slidingly connected with a transverse ejector rod 902, one end of the transverse ejector rod 902 is fixedly connected with a connecting block 9, one end of the transverse ejector rod 902 far away from the connecting block 9 is fixedly connected with a connecting seat 906, a limiting ring 903 is fixedly installed on the surface of the transverse ejector rod 902 at a position between the first installation sleeve 901 and the second installation sleeve 905, a connecting spring 904 sleeved on the outer side surface of the transverse ejector rod 902 is fixedly connected with one end surface of the limiting ring 903 close to the second installation sleeve 905, a deflection claw 907 is rotatably connected inside the connecting seat 906, and a torsion spring used for resetting is installed at the connecting position of the connecting seat 906 and the deflection claw 907;
the surface of the connecting block 9, which is far away from one side of the first mounting sleeve 901, is fixedly connected with a sliding plate 803, the upper end and the lower end of the sliding plate 803 are in sliding connection with a linear sliding rail 8, the rear surface of the linear sliding rail 8 is fixedly connected with a mounting plate 801, the mounting plate 801 is fixedly connected with the inner wall of the upper reaction kettle 1, the surface of the sliding plate 803 is provided with a second chute 807, the sliding plate 803 is in sliding contact with the mounting plate 801, a top sliding rod 806 is in sliding contact with the sliding plate 803, the upper ends of the surfaces of the top sliding rods 806 are fixedly connected with sliding columns 802, and the sliding columns 802 are in sliding connection with the inside of the second chute 807;
the bottom end of the jacking slide rod 806 penetrates through the linear slide rail 8 and extends to the lower side of the linear slide rail 8, a lower mounting seat 804 is connected to the outer side of the jacking slide rod 806 in a sliding manner, one side surface of the lower mounting seat 804 is fixedly connected with the inner wall of the upper reaction kettle 1 through a cross rod, a jacking rod 805 positioned right below the jacking slide rod 806 is attached to the lower end of the jacking slide rod 806, and the lower end of the jacking rod 805 is fixedly connected with the isolation disc 5;
the specific working mode is that the pushing rod 805 moves synchronously along with the isolation disc 5, in the first configuration process, the isolation disc 5 and the pushing rod 805 are both located at the uppermost end, after the first configuration is completed, after the working solution after the configuration is consumed, the isolation disc 5 and the pushing rod 805 can rise to the original positions, in the rising process of the pushing rod 805, the pushing slide rod 806 is pushed upwards, the pushing slide rod 806 pushes the sliding plate 803 to slide towards one side close to the connecting block 9, the sliding column 802 slides along the second chute 807, then the connecting block 9 is pushed to move and squeeze the connecting spring 904, then the connecting seat 906 and the deflecting claw 907 are pushed to move, one ratchet 705 close to the deflecting claw 907 is pushed to rotate when moving and is attached to the next ratchet, and at the moment, the rotating wheel 706 rotates, so that the discharging opening 708 is aligned with the other storage chamber 701, and discharging is completed;
after the configuration is finished, the isolation disc 5 and the top movable rod 805 descend, the top movable slide rod 806 falls under the gravity, the sliding plate 803 resets to drive the deflection pawl 907 to reset, at the moment, the ratchet 705 does not follow the movement due to the action of the unidirectional bearing 707, the steps are repeated, and the discharging and the initiator fixing are automatically quantified during the configuration, so that the configuration accuracy is maintained.
As a further embodiment of the present invention, the outer side surface of the lower reaction kettle 101 is fixedly provided with a fixed mounting seat 102 for fixing, and a valve 103 for controlling the opening and closing of the discharge hole 104 is arranged in the discharge hole 104 at the lower end of the lower reaction kettle 101.
As a further embodiment of the present invention, the discharge port 104 of the configuration device is communicated with the external liquid injection mechanism through a pipeline, and the working liquid prepared by the configuration device in the preparation method is applied.
The working principle of the invention is as follows: when the working solution is configured, the controller 401 starts the stirring motor 4 to stir, at the moment, the lifting mechanism controls the isolation disc 5 to be positioned at the uppermost end, the sealing mechanism also controls the connection port 501 to be closed, at the moment, the upper reaction kettle 1 and the lower reaction kettle 101 are isolated by the isolation disc 5, and after the configuration of the working solution in the upper reaction kettle 1 is finished, the controller 401 is closed, and the configuration is stopped;
at this time, the lifting mechanism and the sealing mechanism stop working, the sealing mechanism opens the connecting port 501, the lifting mechanism stops limiting the isolation disc 5, and the working fluid flows into the lower reaction kettle 101 through the connecting port 501;
it should be noted that, the isolation disc 5 can float on the surface of the working solution through buoyancy, when the working solution completely enters the lower reaction kettle 101, the isolation disc 5 is close to the upper end of the lower reaction kettle 101 due to buoyancy;
when the working fluid in the reaction kettle 101 is rapidly consumed, the isolation disc 5 slides downwards to be attached to the lower positioning ring 605, the isolation disc 5 touches the pressure switch 606 on the surface of the lower positioning ring 605, the pressure switch 606 transmits a signal to the controller 401, the stirring motor 4, the lifting mechanism and the sealing mechanism are restarted to perform secondary blending, the next blending can be performed after the one-time blending is finished, the next blending is performed, the waste is reduced, meanwhile, the transportation and the preservation of the working fluid are avoided, and the working fluid can be immediately used after the configuration is finished;
the specific working mode is that the second electromagnet 603 is controlled to be started by the controller 401 through an electric signal, when the stirring motor 4 is started when the controller 401 is started, the second electromagnet 403 is also electrified to be started, the magnetic induction intensity of the second electromagnet 403 is increased, the second electromagnet is adsorbed by the attached second magnetic block 602, the isolation disc 5 is driven to be attached to the upper positioning ring 604 upwards, the isolation disc 5 is at the uppermost end at the moment, after the configuration is finished, the second electromagnet 403 and the stirring motor 4 are powered off simultaneously, the isolation disc 5 falls under the gravity, then is floated by the liquid level of the working liquid in the lower reaction kettle 101, and the height of the working liquid in the lower reaction kettle 101 is the same;
when the working fluid in the lower reaction kettle 101 is rapidly consumed, the isolation disc 5 slides downwards to be attached to the lower positioning ring 605, the isolation disc 5 touches the pressure switch 606 on the surface of the lower positioning ring 605, the pressure switch 606 transmits a signal to the controller 401, the second electromagnet 403 is restarted, and the isolation disc is adsorbed to return to the upper end;
the pushing rod 805 moves synchronously along with the isolation disc 5, in the first configuration process, the isolation disc 5 and the pushing rod 805 are both located at the uppermost end, after the first configuration is completed, after the working solution after the configuration is consumed, the isolation disc 5 and the pushing rod 805 can be lifted to the original positions, in the lifting process of the pushing rod 805, the pushing sliding rod 806 is pushed upwards, the pushing sliding rod 806 pushes the sliding plate 803 to slide towards one side close to the connecting block 9, the sliding column 802 slides along the second chute 807, then the connecting block 9 is pushed to move and squeeze the connecting spring 904, then the connecting seat 906 and the deflecting pawl 907 are pushed to move, one ratchet 705 close to the deflecting pawl 907 is pushed to rotate and is attached to the next ratchet, and at the moment, the rotating wheel 706 rotates, so that the discharging port 708 is aligned with the other storage chamber 701, and discharging is completed;
after the configuration is finished, the isolation disc 5 and the top movable rod 805 descend, the top movable slide rod 806 falls under the gravity, the sliding plate 803 resets to drive the deflection pawl 907 to reset, at the moment, the ratchet 705 does not follow the movement due to the action of the unidirectional bearing 707, the steps are repeated, and the discharging and the initiator fixing are automatically quantified during the configuration, so that the configuration accuracy is maintained.
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 embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined by the appended claims.
Claims (3)
1. The method for preparing the ultra-low permeability oilfield deep self-seepage regulating acid is characterized by comprising the following steps of:
s1: installing the configuration device on injection equipment of an oil well at a working site, and injecting organic acid liquor, a slow release agent, an iron ion stabilizer and a fixed initiator which are configured in advance into the configuration device;
s2: the raw materials are stirred and mixed in the configuration device through stirring, the solid raw materials such as a solid initiator automatically and quantitatively fall during configuration, working solution is generated after the mixing reaction is completed, and the working solution is injected after the configuration is completed;
s3: repeating the steps to perform configuration again after the working fluid in the configuration device is consumed to a certain amount;
the configuration device in S1 to S3 comprises an upper reaction kettle (1), wherein the lower end of the upper reaction kettle (1) is fixedly connected with a lower reaction kettle (101), a stirring mechanism for mixing is arranged at the middle position of the upper end surface of the upper reaction kettle (1), a feeding hole (2) for feeding is fixedly communicated with the upper surface of the upper reaction kettle (1) close to the edge position, an adjusting mechanism for controlling working fluid to be blended is arranged in the feeding hole (2), a water inlet (201) for water inflow is fixedly communicated with the position of the outer side surface of the lower reaction kettle (101) close to the upper end, a discharging hole (104) is formed at the middle position of the inner lower end of the lower reaction kettle (101), and a solid discharging mechanism for adding a fixed initiator is arranged at the inner top end of the lower reaction kettle (101);
the solid blanking mechanism comprises a storage disc (7), the upper end of the storage disc (7) is fixedly connected with the inner wall of the top end of the upper reaction kettle (1), a storage chamber (701) for storing a fixed initiator is formed in the storage disc (7), and a quantitative blanking mechanism for controlling blanking is further arranged on the lower surface of the storage disc (7);
the stirring mechanism comprises a sleeve pipe (3), the sleeve pipe (3) is fixedly connected to the middle position of the upper end surface of the upper reaction kettle (1), the sleeve pipe (3) is communicated with the interior of the upper reaction kettle (1), a stirring motor (4) is fixedly arranged on the upper end surface of the sleeve pipe (3), a stirring rod (402) is fixedly connected to an output shaft at the lower end of the stirring motor (4), the stirring rod (402) penetrates through the sleeve pipe (3) to enter the interior of the upper reaction kettle (1), and stirring blades (403) are arranged on the surface of the stirring rod (402);
the adjusting mechanism comprises a controller (401) and a vertical chute (6), wherein the vertical chute (6) is arranged on the inner wall of the lower reaction kettle (101), a vertical sliding block (601) is connected in the vertical chute (6) in a sliding manner, one end of the vertical sliding block (601), which is far away from the lower reaction kettle (101), is fixedly connected with an isolation disc (5), an upper positioning ring (604) is fixedly connected to the position, close to the upper end, of the inner wall of the lower reaction kettle (101), a lower positioning ring (605) is fixedly connected to the position, close to the lower end, of the inner wall of the lower reaction kettle (101), a lifting mechanism for controlling the isolation disc (5) to lift is arranged in the vertical chute (6), a connecting port (501) is arranged at the middle position of the isolation disc (5), and a sealing mechanism for controlling the opening and closing of the connecting port (501) is arranged in the isolation disc (5).
The surface of the lower positioning ring (605) is provided with a pressure switch (606) for controlling the controller (401) to be started, and the controller (401) is electrically connected with the stirring motor (4);
the lifting mechanism comprises a second magnetic block (602) and a second electromagnet (603), the second magnetic block (602) is fixedly connected to the upper end face of the vertical sliding block (601), the second electromagnet (603) is embedded and installed at the upper end of the inside of the vertical sliding groove (6), the second electromagnet (603) is parallel to the upper positioning ring (604), and the second electromagnet (603) is electrically connected with the controller (401);
the sealing mechanism comprises a sliding cavity (502), the sliding cavity (502) is arranged at the position, close to the sliding cavity (502), of the inside of the isolation disc (5), a sealing plate (503) is connected in a sliding mode inside the sliding cavity (502), a first electromagnet (504) is fixedly connected to the middle position of one side surface of the sealing plate (503), far away from the connecting port (501), a first magnetic block (506) is fixedly connected to the position, close to the first electromagnet (504), of the inner wall of the sealing plate (503), and a reset spring (505) is fixedly connected to the two side positions, close to the connecting port (501), of the sealing plate (503);
the first electromagnet (504) is electrically connected with the controller (401);
the quantitative discharging mechanism comprises fixing columns (702), the fixing columns (702) are located at the outer side positions of the storage trays (7), the upper ends of the fixing columns (702) are fixedly connected with the inner wall of the upper reaction kettle (1), the lower ends of the fixing columns (702) are rotatably connected with rotating discs (703), discharging openings (708) are formed in the surfaces of the rotating discs (703), the number of the storage chambers (701) is sixteen, and the size of each discharging opening (708) is identical to that of each storage chamber (701);
a rotating mechanism for controlling the feed opening (708) to rotate equidistantly is fixedly arranged on the lower surface of the rotating disc (703);
the rotating mechanism comprises a ratchet mechanism and a pushing mechanism for touching the ratchet to rotate, the ratchet mechanism comprises a connecting rod (704) and a one-way bearing (707), the one-way bearing (707) is fixedly arranged at a position close to the center of the lower surface of the rotating disc (703), and the rotating disc (703) is rotationally connected with the stirring rod (402) through the one-way bearing (707);
the connecting rod (704) is fixedly arranged at the edge position of the lower surface of the rotating disc (703), the lower end of the connecting rod (704) is fixedly connected with a rotating wheel (706), and sixteen ratchets (705) are circumferentially arranged at the edge position of the outer side surface of the rotating wheel (706) in a fixed connection mode;
the pushing mechanism comprises a first mounting sleeve (901), the first mounting sleeve (901) is fixedly mounted on the inner wall of the upper reaction kettle (1), a second mounting sleeve (905) parallel to the first mounting sleeve (901) is further mounted on the inner wall of the upper reaction kettle (1), transverse ejector rods (902) are slidably connected to the inside of the first mounting sleeve (901) and the inside of the second mounting sleeve (905), a connecting block (9) is fixedly connected to one end of each transverse ejector rod (902), a connecting seat (906) is fixedly connected to one end of each transverse ejector rod (902) far away from the connecting block (9), a limiting ring (903) is fixedly mounted on the position between the first mounting sleeve (901) and the second mounting sleeve (905), a connecting spring (904) sleeved on the outer side surface of each transverse ejector rod (902) is fixedly connected to one end surface of each limiting ring (903) close to the second mounting sleeve (905), a connecting claw (907) is connected to the inside of each connecting seat, and a connecting claw (907) is connected to the connecting claw (907);
the connecting block (9) is far away from the surface fixedly connected with sliding plate (803) on one side of the first installation sleeve (901), the upper end and the lower end of the sliding plate (803) are connected with linear sliding rails (8) in a sliding manner, the rear surface of the linear sliding rails (8) is fixedly connected with an installation plate (801), the installation plate (801) is fixedly connected with the inner wall of the upper reaction kettle (1), a second chute (807) is formed in the surface of the sliding plate (803), a top sliding rod (806) is in sliding contact with the sliding plate (803), sliding columns (802) are fixedly connected to the upper ends of the surfaces of the top sliding rod (806), and the sliding columns (802) are in sliding connection with the inside of the second chute (807);
the bottom of top moves slide bar (806) runs through linear slide rail (8) and extends to the below of linear slide rail (8), the outside sliding connection of top moves slide bar (806) has lower mount pad (804), one side surface of lower mount pad (804) pass through the horizontal pole with the inner wall fixed connection of last reation kettle (1), the laminating of the lower extreme of top moves slide bar (806) has and is located top moves slide bar (806) under top moves slide bar (805), the lower extreme of top move bar (805) with separation disc (5) fixed connection.
2. The method for configuring the self-seepage regulating acid in the deep part of the ultra-low permeability oilfield according to claim 1, which is characterized in that: the outer side surface of the lower reaction kettle (101) is fixedly provided with a fixed mounting seat (102), and a valve (103) for controlling the opening and closing of the discharge hole (104) is arranged in the discharge hole (104) at the lower end of the lower reaction kettle (101).
3. The method for configuring the self-seepage regulating acid in the deep part of the ultra-low permeability oilfield according to claim 1, which is characterized in that: the discharge port (104) of the configuration device is communicated with an external liquid injection mechanism through a pipeline, and working liquid prepared by the configuration device in the preparation method is applied.
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| CN202310505247.8A CN116492963B (en) | 2023-05-08 | 2023-05-08 | Configuration method and application of ultra-low permeability oilfield deep self-seepage adjusting acid |
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| JPH0466121A (en) * | 1990-07-09 | 1992-03-02 | Asahi Eng Co Ltd | Automatic liquid feed device |
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| 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 |
| CN216260298U (en) * | 2021-11-29 | 2022-04-12 | 天津圣联达锐塑料粉末有限公司 | Automatic discharging mechanism of mixing device |
| CN116059944A (en) * | 2022-12-04 | 2023-05-05 | 青岛娄山河水务有限公司 | Environment-friendly sludge conditioning agent preparation device and process |
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2023
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0466121A (en) * | 1990-07-09 | 1992-03-02 | Asahi Eng Co Ltd | Automatic liquid feed device |
| CN209865959U (en) * | 2019-04-04 | 2019-12-31 | 无锡阳山生化有限责任公司 | Mixing equipment is used in sodium acetate production |
| CN213761505U (en) * | 2020-11-19 | 2021-07-23 | 九江蓝卓新材料科技有限公司 | Preparation device of oil well high-temperature acidizing corrosion inhibitor |
| 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 |
| CN216260298U (en) * | 2021-11-29 | 2022-04-12 | 天津圣联达锐塑料粉末有限公司 | Automatic discharging mechanism of mixing device |
| CN116059944A (en) * | 2022-12-04 | 2023-05-05 | 青岛娄山河水务有限公司 | Environment-friendly sludge conditioning agent preparation device and process |
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