CN114573753A - High molecular resin adhesive for profile control and water plugging of oil well and water well - Google Patents

Abstract

The invention discloses a polymer resin glue for profile control and water plugging of oil and water wells, and relates to the technical field of oil and gas exploitation. The polymer resin glue for profile control and water plugging of oil and water wells is composed of the following components: 3-4% of polymer resin , 3-4% of water-soluble monomer, 0.05-0.1% of crosslinking agent, 0.005-0.01% of initiator, 0.1-0.2% of oxygen scavenger, 0.1-0.2% of antacid stabilizer, and the balance is water; Polymer resin and water-soluble resin are initiated by initiator to form resin free radicals, free radicals and monomers undergo chain reaction polymerization, cross-linking into macromolecular network structure, forming resin glue with high overall strength, used for profile control and water plugging of oil and water wells Polymer resin glue can effectively seal oil-water well fractures, water flooding in karst caves, and water channeling, and can realize profile control in deep reservoirs.

Description

A kind of polymer resin glue for profile control and water plugging of oil and water wells

technical field

The invention relates to the technical field of oil and gas exploitation, in particular to a polymer resin glue for profile control and water shutoff of oil and water wells.

Background technique

At present, my country's onshore oil is basically developed by water injection. Under the development of oil wells, the phenomenon of water production is becoming more and more common. With the continuous improvement of water injection development, the water content also increases. According to the previous survey results, the water content of the current oil fields in my country has reached 80%, especially in the eastern region, the water content has reached 90%. Under this background, the proportion of water in oil is increasing, which leads to higher energy consumption and lower production rate. Water plugging becomes more important.

As oilfield development gradually enters the middle and late stages, due to channeling of water layers, bottom water coning or injection water, and edge water inrush, some oil wells have premature water breakthrough or water flooding; The block injection water quickly breaks through the high-permeability layer, resulting in a large number of oil wells producing water, which greatly affects the crude oil production rate.

The water-blocking agent mainly used at present is water-based hydrolyzed polyacrylamide-based water-blocking agent. This chemical profile control agent has low material cost and high utility in the process of preparing the water-blocking material. The on-site use process is simple, and the requirements for on-site operations are not high, but such plugging agents are prone to degradation at high temperatures and have poor long-term stability. In the dynamic migration and shearing process of porous media, it is not easy to form colloids; in high salinity brine, the thickening of water is insufficient.

Therefore, a polymer resin glue for profile control and water plugging of oil and water wells is proposed to solve the above problems.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a polymer resin glue for profile control and water plugging of oil and water wells, so as to solve the problems raised in the above-mentioned background technology.

To achieve the above object, the present invention provides the following technical solutions:

A polymer resin glue for profile control and water plugging of oil and water wells. The joint agent is 0.05-0.1%, the initiator is 0.005-0.01%, the oxygen scavenger is 0.1-0.2%, the antacid stabilizer is 0.1-0.2%, and the balance is water.

Further, the polymer resin is carboxymethyl starch.

Further, the water-soluble monomer is 2-acrylamide-2-methylpropanesulfonic acid.

Further, the crosslinking agent is N-methylformamide.

Further, the initiator is potassium peroxypyrophosphate.

Further, the oxygen scavenger is sodium bisulfite.

Further, the antacid stabilizer is scleroglucan.

A preparation process of a polymer resin glue for profile control and water plugging of oil and water wells, the preparation process steps are as follows:

Step 1, place the beaker on the platform below the stirring rod of the digital display mechanical stirrer, add water to the beaker, adjust the height of the stirring rod until it completely covers the water surface, turn on the adjusting speed knob, and adjust the speed to 700-800rpm;

Step 2, add antacid stabilizer on the basis of step 1, continue shearing for 28-32min, until the sclerodextran dissolves;

Step 3, on the basis of step 2, slowly drain the polymer resin into the shearing water surface, reduce the speed of the stirrer to 300-400rpm to obtain a homogeneous solution, and continue stirring for 25-30min after the polymer resin is completely dissolved in the water;

Step 4, on the basis of step 3, add the water-soluble monomer, and cut it for 5-10min until it dissolves uniformly;

Step 5, on the basis of step 4, add a crosslinking agent, an oxygen scavenger and an initiator in sequence, and stir and shear for 5-10 minutes. So far, the preparation of the polymer resin glue solution is completed;

Step 6, on the basis of step 5, pour the prepared polymer resin glue solution into a high temperature-resistant sealed test tube, then seal the test tube, put it into a 120°C constant temperature aging box and let it stand for about 2-4 hours. The structure is filled and processed, and after filling, the polymer resin glue for profile control and water plugging of oil and water wells is obtained.

A device for high-molecular resin glue for profile control and water blocking of oil and water wells, the device is the quantitative structure in step 5, and includes a first support frame, and a conveyor belt is rotatably connected between the first support frames through fixedly connected bearings, A first drive motor is fixedly installed on the rear side wall of the first support frame, and the first drive motor is fixedly connected with one end of the rotating shaft of the conveyor belt;

The top of the first support frame is used for a centralizing structure for guiding the oil drum, and the centralizing structure includes a latch, a positioning hole, a sliding transverse plate, a tension spring, a convex block, a straight limit plate, an inclined guide plate and a sliding hole, The top of the convex block is fixedly connected with a tension spring, the top of the tension spring is fixedly connected with a latch, the convex block is provided with a sliding hole, and a sliding horizontal plate is fitted and slidably connected in the sliding hole. The sliding horizontal plate is evenly provided with positioning holes, the bottom of the latch is driven by the restoring force of the tension spring to be inserted into the positioning holes, the inner end of the sliding horizontal plate is fixedly connected with a straight limit plate, and the right end of the straight limit plate is Fixed connection with inclined guide plate;

The first support frame is provided with a second support frame at the left end of the centralizing structure, the top of the second support frame is fixedly connected with a material barrel, and the top of the material barrel is connected with a quantitative blanking structure. It includes a third support frame, a gas pipe, a cylinder, an outer cover, an n-shaped plate, a baffle plate, a blanking hole, a Z-shaped frame, a rotating electromagnet, a cover plate and a rotating shaft, and a cylinder is fixedly connected to the top of the third support frame. The bottom of the cylinder is fixedly connected with an n-shaped plate, the bottom of the n-shaped plate is fixedly connected with a Z-shaped frame, the bottom of the Z-shaped frame is fixedly connected with a baffle, and the outer wall of the baffle is attached to the interior of the barrel. A blanking hole for blanking is opened at one end of the baffle, a cover and a rotating electromagnet are fixedly connected to the top of the Z-shaped frame, the cover is arranged outside the rotating electromagnet, and the rotating electromagnetic The output end of the iron is fixedly connected with a rotating shaft, the bottom of the rotating shaft is fixedly connected with a cover plate, and the bottom plate of the cover plate is connected with the top of the baffle plate in a fit and sliding connection, and a straight hole on the top of the cover plate is fixedly connected with a Air pipe to balance the pressure below the baffle;

A feeding tube is fixedly connected to the bottom of the barrel, and a control valve is fixedly installed on the feeding tube;

The first support frame is provided with a positioning structure for limiting the position of the oil drum at the lower part of the feeding pipe, and the positioning structure includes a first C-shaped plate, a second C-shaped plate, a sliding groove, a threaded rod, a rotating rod, a thread The groove, the U-shaped plate, the connecting straight block, the second driving motor, the third driving motor and the sliding plate, the output end of the third driving motor is fixedly connected with a threaded rod, and the threaded rod is threadedly connected with the connecting straight block, so The top of the connecting straight block is fixedly connected with a U-shaped plate, one end of the U-shaped plate is fixedly connected with a second drive motor, the output end of the second drive motor is fixedly connected with a rotating rod, and the rotating rod is symmetrically opened with A threaded groove, through which the rotating rod is threadedly connected with a sliding plate, the side walls of the sliding plate are respectively fixedly connected with a second C-shaped plate and a first C-shaped plate, and the side walls of the first support frame are provided with Sliding slot for use with the second C-shaped plate and the first C-shaped plate.

Further, the convex block is fixedly installed on the top of the first support frame, and the convex block is arranged on the right end of the second support frame.

Furthermore, when feeding, the rotating electromagnet drives the rotating shaft to rotate, and the rotating shaft drives the cover plate to rotate to the outside of the feeding hole. Block the feeding hole just above.

Further, the third support frame is fixedly installed on the top of the barrel.

Furthermore, the air pipe guides the air into the baffle when the material is unloaded, so as to ensure the discharge of the material under the baffle.

Further, the third drive motor is fixedly mounted on the side wall of the first support frame, and the side wall of the first support frame is rotatably connected to the threaded rod through a fixedly connected bearing.

Furthermore, the upright part of the U-shaped plate is rotatably connected with a rotating rod through a fixedly connected bearing.

Further, the second C-shaped plate and the first C-shaped plate are arranged at both ends of the feeding pipe.

The beneficial effects of the present invention are:

The invention selects the positioning hole of the centralizing structure according to the size of the oil drum to be filled quantitatively, pulls the latch upward, slides the horizontal plate, and the sliding horizontal plate drives the selected positioning hole to move to the lower part of the latch, and the restoring force of the tension spring after releasing the latch Drive the pin to be inserted into the positioning hole, so that the straight limit plates are suitable for quantitatively filled oil drums, and the inclined guide plate is convenient to guide the quantitatively filled oil drums to the straight limit plate, and then move through the straight limit plate. to the bottom of the feeding pipe;

The second drive motor of the positioning structure of the present invention drives the rotating rod to rotate, the rotating rod drives the sliding plate to move through the threaded groove, and the sliding plate drives the first C-shaped plate and the second C-shaped plate to move, so that the first C-shaped plate and the second C-shaped plate move. The size of the oil barrels suitable for different quantitative filling is between the shaped plates. Before filling, the third drive motor drives the threaded rod to rotate, the threaded rod drives the connecting straight block to move backwards, and the connecting straight block drives the U-shaped plate to move backwards. The plate drives the second C-shaped plate and the first C-shaped plate to move backward, the second C-shaped plate and the first C-shaped plate move to the rearmost end, and the oil barrel moves to the right end of the first C-shaped plate through the second C-shaped plate , The first C-shaped plate stops the oil drum and then fills it. After filling, the third drive motor drives the threaded rod to rotate, the threaded rod drives the connecting straight block to move forward, and the connecting straight block drives the U-shaped plate to move forward. , the U-shaped plate drives the second C-shaped plate and the first C-shaped plate to move forward, the second C-shaped plate and the first C-shaped plate move to the front end, and the second C-shaped plate moves the right side of the second C-shaped plate. The oil drum is blocked, and the oil drum at the right end of the first C-shaped plate is discharged from the first C-shaped plate, which is convenient to limit the oil drum to the bottom of the feeding pipe in sequence;

The invention starts the cylinder of the quantitative blanking structure according to the quantitative blanking. The cylinder drives the baffle to move through the n-shaped plate and the Z-shaped frame. When the storage volume under the baffle meets the quantitative requirements, the cylinder is stopped, and the rotating electromagnet drives the rotation during feeding. The shaft rotates, and the rotating shaft drives the cover plate to rotate to the outside of the blanking hole. After the feeding is completed, the rotating electromagnet resets. The rotating electromagnet drives the cover plate to rotate just above the blanking hole to block the blanking hole. The storage capacity is quantitatively fed through the feeding tube, which makes the device convenient for quantitative feeding;

In the invention, the polymer resin and the water-soluble resin are initiated by the initiator to form resin free radicals, and the free radicals and the monomers undergo chain reaction polymerization, cross-linking into a macromolecular network structure, forming a resin glue with high overall strength, and profile control of oil and water wells. The polymer resin glue for water plugging can effectively plug the oil-water well cracks, karst cave-type flooding, and water channeling, and can realize the profile control in the deep reservoir. The sealing effect is ideal, which is beneficial to practical use; Molecular resin glue is temperature-resistant and salt-resistant. It has low viscosity before gel formation and has good injection performance. It does not require moving pipe strings during construction. The pressure difference of the oil-water channel increases the flow area to achieve the purpose of controlling water and increasing oil, and the pure viscous fluid spreads evenly to the dominant channel to achieve effective water blocking.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

Fig. 1 is the preparation process flow chart of the present invention;

Fig. 2 is the relation diagram of injection speed and injection pressure in the sand filling pipe of different permeability of the present invention;

Fig. 3 is the quick optimization diagram of the Sydansk bottle view method of the present invention;

Fig. 4 is the water flooding curve diagram of the 30m long sand filling pipe of the present invention after 10m plugging agent is injected into gel;

Fig. 5 is the resin glue blocking rate diagram of the present invention;

6 is a graph showing the relationship between the plugging rate and the injection amount of the present invention;

Fig. 7 is the water recovery curve of water channeling, channeling, channeling and plugging of the water injection well of the H2410 well in Xinjiang Oilfield of the present invention;

Fig. 8 is the plugging pressure curve diagram of the water injection well G26-24 of Jidong Oilfield of the present invention;

9 is a scanning electron microscope image of the polymer resin glue of the present invention;

Fig. 10 is the drag coefficient of different transport positions in the specific case of the present invention;

Fig. 11 is the water absorption profile of Jidong Oilfield water injection well G26-24 of the present invention;

Fig. 12 is the production data diagram of the water injection well G26-24 of Jidong Oilfield of the present invention;

Figure 13 is a schematic structural diagram of the present invention;

Figure 14 is a rear view of the structure of the present invention;

Figure 15 is a top view of the structure of the present invention;

Figure 16 is a structural cross-sectional view of the present invention;

Figure 17 is a bottom view of the structure of the present invention;

Figure 18 is a right side sectional view of the structure of the present invention;

Figure 19 is a schematic diagram of the righting structure of the present invention;

FIG. 20 is an enlarged schematic view of the structure at A of FIG. 17 of the present invention;

21 is an enlarged schematic view of the structure at B of FIG. 18 of the present invention;

Figure 22 is a schematic diagram of the rotating rod and its connection structure of the present invention;

In the accompanying drawings, the list of components represented by each number is as follows:

1. The first support frame 2. The first drive motor 3. The conveyor belt 4. The righting structure 401. The latch 402. The positioning hole 403. The sliding horizontal plate 404. The tension spring 405. The convex block 406. The straight limit plate 407. Plate 408. Sliding hole 5. Second support frame 6. Positioning structure 601. First C-shaped plate 602. Second C-shaped plate 603. Sliding groove 604. Threaded rod 605. Rotating rod 606. Threaded groove 607. U-shaped plate 608. Connecting straight block 609. Second driving motor 610. Third driving motor 611. Sliding plate 7. Control valve 8. Feeding pipe 9. Material barrel 10. Quantitative feeding structure 1001. Third support frame 1002. Trachea 1003 . Cylinder 1004. Cover 1005. N-shaped plate 1006. Baffle plate 1007. Blanking hole 1008. Z-shaped frame 1009. Rotating electromagnet 1010. Cover plate 1011. Rotating shaft.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The present invention will be further described below in conjunction with the examples.

Example 1

As shown in Figure 1-8,

A polymer resin glue for profile control and water plugging of oil and water wells. The polymer resin glue for profile control and water plugging of oil and water wells is composed of the following components: 3% of polymer resin, 4% of water-soluble monomer, and 0.1% of cross-linking agent , initiator 0.01%, oxygen scavenger 0.2%, antacid stabilizer 0.1%, and the balance is water.

The polymer resin is carboxymethyl starch.

The water-soluble monomer is 2-acrylamide-2-methylpropanesulfonic acid.

The crosslinking agent is N-methylformamide.

The initiator is potassium peroxypyrophosphate.

The oxygen scavenger is sodium bisulfite.

The antacid stabilizer is scleroglucan.

A preparation process of a polymer resin glue for profile control and water plugging of oil and water wells, the preparation process steps are as follows:

Step 1, place the beaker on the platform below the stirring rod of the digital display mechanical stirrer, add water to the beaker, then adjust the height of the stirring rod until it completely covers the water surface, turn on the adjusting speed knob, and adjust the speed to 700rpm;

Step 2, add antacid stabilizer on the basis of step 1, continue shearing for 32min, until the sclerodextran dissolves;

Step 3, on the basis of step 2, slowly drain the polymer resin into the shearing water surface, reduce the speed of the stirrer to 400 rpm, and obtain a homogeneous solution, and continue stirring for 25 minutes after the polymer resin is completely dissolved in the water;

Step 4, on the basis of step 3, add the water-soluble monomer, and shear it for 10 minutes until it dissolves uniformly;

Step 5, on the basis of step 4, add a crosslinking agent, an oxygen scavenger and an initiator in sequence, and stir and shear for 10 minutes. So far, the preparation of the polymer resin glue solution is completed;

Step 6, on the basis of step 5, pour the prepared polymer resin glue solution into a high temperature sealed test tube, then seal the test tube, put it into a 120°C constant temperature aging box and let it stand for about 4 hours. After filling, the polymer resin glue for profile control and water blocking of oil and water wells is obtained after filling.

Example 2

Embodiment 2 is a further improvement of Embodiment 1.

As shown in Figure 1-8,

A polymer resin glue for profile control and water plugging of oil and water wells. The polymer resin glue for profile control and water plugging of oil and water wells is composed of the following components: 4% of polymer resin, 3% of water-soluble monomer, and 0.2% of cross-linking agent , initiator 0.05%, oxygen scavenger 0.2%, antacid stabilizer 0.2%, and the balance is water.

The polymer resin is carboxymethyl starch.

The water-soluble monomer is 2-acrylamide-2-methylpropanesulfonic acid.

The crosslinking agent is N-methylformamide.

The initiator is potassium peroxypyrophosphate.

The oxygen scavenger is sodium bisulfite.

The antacid stabilizer is scleroglucan.

A preparation process of a polymer resin glue for profile control and water plugging of oil and water wells, the preparation process steps are as follows:

Step 1, place the beaker on the platform below the stirring rod of the digital display mechanical stirrer, add water to the beaker, then adjust the height of the stirring rod until it completely covers the water surface, turn on the adjusting speed knob, and adjust the speed to 800rpm;

Step 2, add antacid stabilizer on the basis of step 1, continue shearing for 28min, until the sclerodextran dissolves;

Step 3, on the basis of step 2, slowly drain the polymer resin into the shearing water surface, reduce the speed of the stirrer to 300 rpm to obtain a homogeneous solution, and continue stirring for 30 minutes after the polymer resin is completely dissolved in the water;

Step 4, on the basis of step 3, adding the water-soluble monomer, and shearing for 5min until it dissolves uniformly;

Step 5, on the basis of step 4, add the crosslinking agent, the oxygen scavenger and the initiator in turn, stir and shear for 5 minutes, so far, the preparation of the polymer resin glue solution is completed;

Step 6, on the basis of step 5, pour the prepared polymer resin glue solution into a high temperature sealed test tube, then seal the test tube, put it into a 120°C constant temperature aging box and let it stand for about 5 hours. After filling, the polymer resin glue for profile control and water blocking of oil and water wells is obtained after filling.

Embodiment 1 and embodiment 2 are detected, and the detection standard is Q/SH1020 1493-2014/strong jelly

project index index gel strength ≥9x10⁶mpa.s ≥1x10⁵mpa.s Elastic modulus Pa ≥10 ≥10 Water blocking rate ≥93% ≥95% Water blocking rate after 100PV water flushing ≥85% ≥90% Viscosity retention rate after 7 days of constant temperature ≥98% ≥98% gel time ≤7h ≤7h Break through the pressure gradient 6.5MPa/m 8.8MPa/m

In the invention, the polymer resin and the water-soluble resin are initiated by an initiator to form resin free radicals, and the free radicals and the monomers undergo chain reaction polymerization, cross-linking into a macromolecular network structure, forming a resin glue with high overall strength, and profile control of oil and water wells. The polymer resin glue for water plugging can effectively plug the oil-water well cracks, karst cave water flooding and water channeling, and can realize the profile control in the deep part of the reservoir.

Specific case

As shown in Figure 9, after the polymer resin glue is injected, the scanning electron microscope shows that the polymer resin glue is integrally slug-type to block the dominant water flow channel. Injection performance, the construction does not need to move the pipe string, the blocking agent preferentially enters the water channeling high diversion channel, selectively plugs, adjusts the pressure difference of the oil-water channel in the reservoir after gelation, increases the bypass area, and achieves the purpose of controlling water and increasing oil. , the pure viscous fluid spreads evenly to the dominant channel to achieve effective water plugging.

The specific operations are as follows:

During the process of injecting 10m plugging agent into the 30m long sand-filling pipe, the plugging agent migrated in the porous medium in the form of slug, and the resistance coefficient decreased slowly during the migration process, that is, the apparent viscosity of the plugging agent decreased with shearing, and the When it moved to 8.16m, the resistance coefficient decreased from 50 to about 40, corresponding to a decrease of about 20% in apparent viscosity. The plugging agent has a certain shear resistance, see Figure 10 for details. The results of the long sand-filled pipe plugging experiment show that after the resin glue blocks the pores, the polymer resin glue has good erosion resistance at the same time. See Table 1 for details.

Table 1

Jidong Oilfield G26-24 is a water well in Gao 5 fault block in Gaoshen North District. The water absorption profile was measured on August 17, 2017. The data shows that the 28# layer absorbs 24.82% of water, and the 29# layer absorbs 75.18% of water, which is the main water absorption layer, corresponding to the oil well The average water cut is high. After research, it was decided to implement profile control for the well, requiring control of the 28# and 29# main water absorption layers. The profile control construction was carried out on May 10, 2018. The formation temperature of the well was about 130 °C, and the selected polymer resin gel was injected with a cumulative injection of 430 cubic meters. After the well was shut in for 3 days, water injection was resumed.

As shown in Figures 11 and 12, after the profile control of the well, the water absorption of the 29# layer of the main water absorption layer decreased from 75.18% before construction to 31.77%; the 28# layer decreased from 24.82% before construction to 0, and did not absorb water at all. Moreover, the 27b# layer was restarted, the water absorption was 50.52%, and the 30# layer was 17.71%, which effectively improved the water absorption profile, and the shallow adjustment was very successful.

Example 3

Example 3 is a further improvement to Example 1.

As shown in Figures 13 to 22, a device for oil and water well profile control and water plugging with polymer resin glue, the device is the quantitative structure in step 3, including a first support frame 1, and the first support frames 1 are fixed by The connected bearing is rotatably connected with the conveyor belt 3, the rear side wall of the first support frame 1 is fixedly installed with a first drive motor 2, and the first drive motor 2 is fixedly connected with one end of the rotating shaft of the conveyor belt 3;

The top of the first support frame 1 is used for the centering structure 4 for guiding the oil drum. The centering structure 4 includes a latch 401, a positioning hole 402, a sliding cross plate 403, a tension spring 404, a convex block 405, a straight limit plate 406, and an oblique guide. The plate 407 and the sliding hole 408, the top of the convex block 405 is fixedly connected with a tension spring 404, the top of the tension spring 404 is fixedly connected with a plug 401, the convex block 405 is provided with a sliding hole 408, and the sliding hole 408 is fitted and slidably connected with The sliding horizontal plate 403 is evenly provided with positioning holes 402, the bottom of the latch 401 is driven by the restoring force of the tension spring 404 to be inserted into the positioning hole 402, and the inner end of the sliding horizontal plate 403 is fixedly connected with a straight limit plate 406. The right end of the straight limit plate 406 is fixedly connected with an oblique guide plate 407, the convex block 405 is fixedly installed on the top of the first support frame 1, and the convex block 405 is arranged on the right end of the second support frame 5. Select the positioning hole 402 of the centralizing structure 4 according to the size of the oil drum, pull the latch 401 upward, slide the horizontal plate 403, and the sliding horizontal plate 403 drives the selected positioning hole 402 to move to the bottom of the latch 401. After loosening the latch 401, the tension spring 404 The restoring force drives the plug 401 to be inserted into the positioning hole 402, so that the straight limit plates 406 are suitable for quantitatively filled oil drums. Then move to below the feeding tube 8 through the straight limit plate 406;

The first support frame 1 is provided with a second support frame 5 at the left end of the centralizing structure 4, the top of the second support frame 5 is fixedly connected with a barrel 9, and the top of the barrel 9 is connected with a quantitative blanking structure 10, and the quantitative blanking structure 10 Including the third support frame 1001, the air pipe 1002, the cylinder 1003, the outer cover 1004, the n-shaped plate 1005, the baffle plate 1006, the blanking hole 1007, the Z-shaped frame 1008, the rotating electromagnet 1009, the cover plate 1010 and the rotating shaft 1011, the third A cylinder 1003 is fixedly connected to the top of the support frame 1001, an n-shaped plate 1005 is fixedly connected to the bottom of the cylinder 1003, a Z-shaped frame 1008 is fixedly connected to the bottom of the n-shaped plate 1005, and a baffle 1006 is fixedly connected to the bottom of the Z-shaped frame 1008. And the outer wall of the baffle 1006 is in a sliding connection with the inside of the barrel 9, one end of the baffle 1006 is provided with a blanking hole 1007 for blanking, and the top of the Z-shaped frame 1008 is fixedly connected with a cover 1004 and a rotating electromagnet 1009, The outer cover 1004 is arranged outside the rotating electromagnet 1009 , the output end of the rotating electromagnet 1009 is fixedly connected with a rotating shaft 1011 , the bottom of the rotating shaft 1011 is fixedly connected with a cover plate 1010 , and the bottom plate of the cover plate 1010 is attached to the top of the baffle plate 1006 Sliding connection, the top straight hole of the cover plate 1010 is fixedly connected with the air pipe 1002 for balancing the pressure under the baffle plate 1006. When feeding, the rotating electromagnet 1009 drives the rotating shaft 1011 to rotate, and the rotating shaft 1011 drives the cover plate 1010 to rotate to the unloading hole. Outside 1007, after the feeding is finished, the rotating electromagnet 1009 is reset. The rotating electromagnet 1009 drives the cover plate 1010 to rotate just above the blanking hole 1007 to block the blanking hole 1007. The third supporting frame 1001 is fixedly installed on the At the top, the air pipe 1002 guides the air into the baffle 1006 during feeding, which ensures the discharge of the material under the baffle 1006. The cylinder 1003 of the quantitative feeding structure 10 is activated according to the quantitative feeding quantity. The air cylinder 1003 passes through the n-shaped plate 1005 and the The Z-shaped frame 1008 drives the baffle 1006 to move. When the storage volume under the baffle 1006 meets the quantitative requirements, the cylinder 1003 is stopped. During feeding, the rotating electromagnet 1009 drives the rotating shaft 1011 to rotate, and the rotating shaft 1011 drives the cover plate 1010 to rotate to the feeding hole 1007 Outside, after the feeding is completed, the rotating electromagnet 1009 is reset, and the rotating electromagnet 1009 drives the cover plate 1010 to rotate just above the blanking hole 1007 to block the blanking hole 1007, and then pass the storage amount under the baffle 1006 through the blanking pipe 8 Quantitative feeding is carried out, making the device convenient for quantitative feeding;

The bottom of the barrel 9 is fixedly connected with a feeding pipe 8 , and the feeding pipe 8 is fixedly installed with a control valve 7 .

Example 4

Example 4 is a further improvement to Example 3.

As shown in FIGS. 13 to 22 , the first support frame 1 is provided with a positioning structure 6 for limiting the position of the oil drum at the lower part of the feeding pipe 8 . The positioning structure 6 includes a first C-shaped plate 601 , a second C-shaped plate 602 , Sliding groove 603, threaded rod 604, rotating rod 605, threaded groove 606, U-shaped plate 607, connecting straight block 608, second driving motor 609, third driving motor 610 and sliding plate 611, the output end of the third driving motor 610 A threaded rod 604 is fixedly connected, the threaded rod 604 is threadedly connected with a connecting straight block 608, the top of the connecting straight block 608 is fixedly connected with a U-shaped plate 607, and one end of the U-shaped plate 607 is fixedly connected with a second driving motor 609, the second driving A rotating rod 605 is fixedly connected to the output end of the motor 609. The rotating rod 605 is symmetrically provided with a threaded groove 606. The rotating rod 605 is threadedly connected with a sliding plate 611 through the threaded groove 606. The plate 602 and the first C-shaped plate 601, the side wall of the first support frame 1 is provided with a sliding groove 603 for use with the second C-shaped plate 602 and the first C-shaped plate 601, and the third drive motor 610 is fixedly installed on the first C-shaped plate 602. A side wall of the support frame 1, the side wall of the first support frame 1 is rotatably connected with the threaded rod 604 through the fixedly connected bearing, the upright part of the U-shaped plate 607 is rotatably connected with the rotating rod 605 through the fixedly connected bearing, the second C The shaped plate 602 and the first C-shaped plate 601 are arranged at both ends of the feeding tube 8. The second driving motor 609 of the positioning structure 6 drives the rotating rod 605 to rotate, and the rotating rod 605 drives the sliding plate 611 to move through the threaded groove 606. The sliding plate 611 Drive the first C-shaped plate 601 and the second C-shaped plate 602 to move, so that between the first C-shaped plate 601 and the second C-shaped plate 602 suitable for different quantitative filling oil drum sizes, before filling, the third drive motor 610 drives the threaded rod 604 to rotate, the threaded rod 604 drives the connecting straight block 608 to move backward, the connecting straight block 608 drives the U-shaped plate 607 to move backward, and the U-shaped plate 607 drives the second C-shaped plate 602 and the first C-shaped plate 601 Moving backward, the second C-shaped plate 602 and the first C-shaped plate 601 move to the rearmost end, the oil drum moves to the right end of the first C-shaped plate 601 through the second C-shaped plate 602, and the first C-shaped plate 601 removes the oil The barrel is limited and then filled. After filling, the third drive motor 610 drives the threaded rod 604 to rotate, the threaded rod 604 drives the connecting straight block 608 to move forward, and the connecting straight block 608 drives the U-shaped plate 607 to move forward. The plate 607 drives the second C-shaped plate 602 and the first C-shaped plate 601 to move forward, the second C-shaped plate 602 and the first C-shaped plate 601 move to the front end, and the second C-shaped plate 602 moves the second C-shaped The oil drums on the right side of the plate 602 are blocked, and the oil drums on the right end of the first C-shaped plate 601 are discharged from the first C-shaped plate 601 , so that the oil drums can be sequentially limited to the lower part of the feeding pipe 8 .

When in use, according to the quantitative filling requirements, start the cylinder 1003 of the quantitative feeding structure 10, the cylinder 1003 drives the baffle 1006 to move through the n-shaped plate 1005 and the Z-shaped frame 1008, and stops the cylinder 1003 when the storage volume under the baffle 1006 meets the quantitative requirements. ;

Select the positioning hole 402 of the centralizing structure 4 according to the size of the oil drum to be filled in a quantitative manner, pull the latch 401 upward, and slide the horizontal plate 403. The restoring force of the tension spring 404 drives the plug 401 to be inserted into the positioning hole 402, so that the straight limit plates 406 are suitable for quantitatively filled oil drums. The second driving motor 609 of the positioning structure 6 drives the rotating rod 605 to rotate, and the rotating rod 605 The sliding plate 611 is driven by the screw groove 606 to move, and the sliding plate 611 drives the first C-shaped plate 601 and the second C-shaped plate 602 to move, so that the first C-shaped plate 601 and the second C-shaped plate 602 are suitable for different quantitative filling. before filling, the third drive motor 610 drives the threaded rod 604 to rotate, the threaded rod 604 drives the connecting straight block 608 to move backward, the connecting straight block 608 drives the U-shaped plate 607 to move backward, and the U-shaped plate 607 drives The second C-shaped plate 602 and the first C-shaped plate 601 move backward, the second C-shaped plate 602 and the first C-shaped plate 601 move to the rearmost end, put the oil drum on the conveyor belt 3, and the first drive motor 2 drives the conveyor belt 3 moves, the conveyor belt 3 drives the oil drum to move, and the inclined guide plate 407 conveniently guides the quantitatively filled oil drum into the straight limit plate 406, and then moves to the bottom of the feeding pipe 8 through the straight limit plate 406, and the oil drum passes through The second C-shaped plate 602 is moved to the right end of the first C-shaped plate 601. The first C-shaped plate 601 stops the oil drum and then fills the oil drum, so that the oil drum can be limited in order to the bottom of the feeding pipe 8, and then The baffle plate 1006 is loaded. When loading, the rotating electromagnet 1009 drives the rotating shaft 1011 to rotate, and the rotating shaft 1011 drives the cover plate 1010 to rotate to the outside of the unloading hole 1007. After the feeding is completed, the rotating electromagnet 1009 is reset, and the rotating electromagnet 1009 drives the cover plate 1010 to rotate just above the blanking hole 1007 to block the blanking hole 1007, and then the storage volume under the baffle 1006 is quantitatively blanked through the blanking pipe 8, which makes the device convenient for quantitative blanking and quantitative filling. Afterwards, the third driving motor 610 drives the threaded rod 604 to rotate, the threaded rod 604 drives the connecting straight block 608 to move forward, the connecting straight block 608 drives the U-shaped plate 607 to move forward, and the U-shaped plate 607 drives the second C-shaped plate 602 and The first C-shaped plate 601 moves forward, the second C-shaped plate 602 and the first C-shaped plate 601 move to the front end, the second C-shaped plate 602 blocks the oil drum on the right side of the second C-shaped plate 602, The oil drum on the right end of a C-shaped plate 601 is discharged from the first C-shaped plate 601, and then the third driving motor 610 drives the threaded rod 604 to rotate, the threaded rod 604 drives the connecting straight block 608 to move backward, and the connecting straight block 608 drives the U-shaped plate 607 moves backward, the U-shaped plate 607 drives the second C-shaped plate 602 and the first C-shaped plate 601 to move backward, and the second C-shaped plate 602 and the first C-shaped plate 601 move to the rearmost end.

In the description of this specification, description with reference to the terms "one embodiment," "example," "specific example," etc. means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one aspect of the present invention. in one embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above-disclosed preferred embodiments of the present invention are provided only to help illustrate the present invention. The preferred embodiments do not describe all the details and do not limit the invention to specific embodiments only. Obviously, many modifications and variations are possible in light of the contents of this specification. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is to be limited only by the claims and their full scope and equivalents.

Claims (9)

1. a polymer resin glue for profile control and water plugging of oil and water wells, is characterized in that: the polymer resin glue used for profile control and water plugging of oil and water wells is made up of the following components: polymer resin 3-4%, water-soluble mono Body 3-4%, cross-linking agent 0.05-0.1%, initiator 0.005-0.01%, oxygen scavenger 0.1-0.2%, antacid stabilizer 0.1-0.2%, and the balance is water. 2 . The polymer resin glue for profile control and water shutoff for oil and water wells according to claim 1 , wherein the polymer resin is carboxymethyl starch. 3 . 3 . The polymer resin glue for profile control and water plugging of oil and water wells according to claim 1 , wherein the water-soluble monomer is 2-acrylamide-2-methylpropanesulfonic acid. 4 . 4. The polymer resin glue for oil-water and well profile control and water shutoff according to claim 1, wherein the cross-linking agent is N-methylformamide. 5 . The polymer resin glue for profile control and water shutoff for oil and water wells according to claim 1 , wherein the initiator is potassium peroxypyrophosphate. 6 . 6 . The polymer resin glue for profile control and water shutoff for oil and water wells according to claim 1 , wherein the oxygen scavenger is sodium bisulfite. 7 . 7 . The polymer resin glue for profile control and water plugging of oil and water wells according to claim 1 , wherein the antacid stabilizer is sclerodextran. 8 . 8. a preparation process of the polymer resin glue for profile control and water shutoff for oil and water wells according to any one of claims 1-7, is characterized in that: the preparation process steps are as follows: Step 1, place the beaker on the platform below the stirring rod of the digital display mechanical stirrer, add water to the beaker, adjust the height of the stirring rod until it completely covers the water surface, turn on the adjusting speed knob, and adjust the speed to 700-800rpm; Step 2, add antacid stabilizer on the basis of step 1, continue shearing for 28-32min, until the sclerodextran dissolves; Step 3, on the basis of step 2, slowly drain the polymer resin into the shearing water surface, reduce the speed of the stirrer to 300-400rpm to obtain a homogeneous solution, and continue stirring for 25-30min after the polymer resin is completely dissolved in the water; Step 4, on the basis of step 3, add the water-soluble monomer, and cut it for 5-10min until it dissolves uniformly; Step 5, on the basis of step 4, add a crosslinking agent, an oxygen scavenger and an initiator in sequence, and stir and shear for 5-10 minutes. So far, the preparation of the polymer resin glue solution is completed; Step 6, on the basis of step 5, pour the prepared polymer resin glue solution into a high temperature-resistant sealed test tube, then seal the test tube, put it into a 120°C constant temperature aging box and let it stand for about 2-4 hours. The structure is filled and processed, and the polymer resin glue for profile control and water plugging of oil and water wells is obtained after filling. 9. A device for high-molecular resin glue for profile control and water shutoff for oil and water wells according to claim 8, characterized in that: the device is the quantitative structure in step 6, comprising a first support frame (1), said A conveyor belt (3) is rotatably connected between the first support frames (1) through fixedly connected bearings, and a first drive motor (2) is fixedly installed on the rear side wall of the first support frame (1). The driving motor (2) is fixedly connected with one end of the rotating shaft of the conveyor belt (3).

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