CN112920786A - Composite sand control agent with high permeability retention rate - Google Patents
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09K8/56—Compositions for consolidating loose sand or the like around wells without excessively decreasing the permeability thereof
- C09K8/57—Compositions based on water or polar solvents
- C09K8/575—Compositions based on water or polar solvents containing organic compounds
- C09K8/5751—Macromolecular compounds
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- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/56—Compositions for consolidating loose sand or the like around wells without excessively decreasing the permeability thereof
- C09K8/57—Compositions based on water or polar solvents
- C09K8/575—Compositions based on water or polar solvents containing organic compounds
- C09K8/5751—Macromolecular compounds
- C09K8/5755—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/56—Compositions for consolidating loose sand or the like around wells without excessively decreasing the permeability thereof
- C09K8/57—Compositions based on water or polar solvents
- C09K8/575—Compositions based on water or polar solvents containing organic compounds
- C09K8/5751—Macromolecular compounds
- C09K8/5758—Macromolecular compounds of natural origin, e.g. polysaccharides, cellulose
Abstract
The invention relates to a composite sand control agent with high permeability retention rate, which comprises the following components in percentage by mass: 7-10% of modified inorganic silicate, 15-20% of composite resin, 5-10% of cationic polymer, 10-15% of inducer, 5-8% of stabilizer, 10-15% of pore-increasing agent and the balance of water. The composite sand control agent has low cost and simple process construction, can realize multilevel sand control such as sand suppression, sand fixation, sand control and the like, has high sand control strength and good scouring resistance, has permeability retention rate of more than 92 percent, does not contain hazardous substances such as organic chlorine, sulfur and the like, and better solves the sand control problems of the offshore oil field oil-water well stratum or the large well with high water content in the old well and stratum depletion.
Description
Technical Field
The invention belongs to the field of chemical sand control in the middle and later stages of development, and relates to a composite sand control agent with high permeability retention rate.
Background
The sand production is one of the main problems influencing the high-speed exploitation of offshore oil fields, and can cause casing damage, sand blockage, low yield, increased workload and even cause the production stop and the abandonment of oil-water wells.
The common sand control methods comprise mechanical sand control and chemical sand control, the mechanical sand control has stronger adaptability to an oil layer, but the sand control effect on a fine silt oil layer is not ideal, and the problem of complex later-stage workover work exists. In the high-speed exploitation of offshore oil fields, the produced sand of an oil layer can be filling sand or skeleton sand, and ideal chemical sand prevention measures need to reduce van der Waals force and double electric layer repulsion force, enhance the formation cementation strength, realize the prevention and treatment of fine sand and coarse sand and finally ensure better permeability and smooth holes. From oil deposit sand production mechanism and sand production actual analysis, chemical sand control needs to prevent clay silt expansion, prevent fine sand particle migration, prevent skeleton coarse grain sand production, and the chemical sand control method who uses at present mainly is resin liquid sand control, and resin sand control emphasizes skeleton sand fixation, exists not enoughly in the aspect of inhibiting sand and controlling sand. Meanwhile, when the underground resin synthesis method is adopted, monomers are injected, the polymerization reaction is difficult to be carried out in the underground in a balanced manner, the cross-linking reaction is incomplete, and the consolidation strength after sand control does not reach the sand control standard, so that the sand control fails or the effective period is shortened. When the resin is synthesized on the ground, the resin has high viscosity, needs to be added with an organic solvent, has high cost and pollution, and has high reaction speed after being added with a curing agent, so that the curing agent can be started to be cured on the way of pumping into a stratum, thereby blocking the stratum. The permeability of most of the cured resin is seriously reduced, and only 40 to 60 percent of the original permeability can be maintained, so that the yield is reduced, the resin is blocked seriously, and petroleum cannot be produced. The problems of short validity period, poor medium resistance, troublesome post-treatment after sand control failure and the like generally exist. Therefore, the research on the novel chemical sand control process which is low in cost, high in efficiency and practical is realized, and the realization of sand suppression, sand fixation and sand control multilevel sand control is an inevitable trend for developing loose sandstone.
Disclosure of Invention
The invention aims to solve the technical problem of providing a composite sand control agent with high permeability retention rate, aiming at the particle migration phenomenon in the development and production process of unconsolidated sandstone oil reservoirs, a sand control system is developed and developed, and the organic unification of oil field sand control and normal and high production liquid is realized.
The technical scheme for realizing the purpose of the invention is as follows:
the composite sand control agent with high permeability retention rate comprises the following components in percentage by mass: 7-10% of modified inorganic silicate, 15-20% of composite resin, 5-10% of cationic polymer, 10-15% of inducer, 5-8% of stabilizer, 10-15% of pore-increasing agent and the balance of water.
And the modified inorganic silicate accounts for 100 percent, the inorganic silicate accounts for 50 to 65 percent by mass, the nano white carbon black accounts for 5 to 10 percent by mass, the sodium tripolyphosphate accounts for 10 to 15 percent by mass, and the balance is glass fiber, and the modified inorganic silicate is mixed according to the proportion to form the sand control agent which can prevent fine sand grains with smaller granularity from moving, has good suspension property of prepared liquid, is not easy to agglomerate, and has certain compressive strength and permeability.
And the composite resin is calculated by 100 percent, wherein the mass percent of the furfuryl alcohol resin is 60-70 percent, the mass percent of the urea-formaldehyde resin is 10-15 percent, and the balance is polyethylene resin, and the furfuryl alcohol resin, the urea-formaldehyde resin and the polyethylene resin are mixed according to the proportion to form a high-strength polymer network structure, are tightly adsorbed on the surfaces of particles, and bridge loose particles, so that the particles which are transported and are about to be transported are stable and do not shake, and the composite resin has certain economic benefit.
And the cationic polymer accounts for 100%, wherein the mass percent of the water-soluble cationic polyacrylamide is 50-60%, the mass percent of the modified starch is 15-20%, the mass percent of the fatty alcohol-polyoxyethylene ether is 5-10%, and the balance is sodium alkyl benzene sulfonate, and the cationic polymer and the modified starch are mixed according to the proportion to form the sand inhibitor, which has high adsorption performance and static sand stabilization performance on the surface of sand grains and simultaneously has certain functions of thick oil viscosity reduction, descaling and cleaning.
And the initiator is calculated by 100%, wherein the mass percent of the hexamethylenetetramine is 20-30%, the mass percent of the urotropine is 20-30%, the mass percent of the polyvinyl alcohol is 20-30%, and the balance of the urea are mixed according to the proportion, and the formed initiator, the modified inorganic silicate, the composite resin and the cationic polymer can fully react to form a composite gel sand control system which can enhance the stratum framework strength, inhibit stratum sand production and control sand grain migration.
And the slow release stabilizer comprises a heat stabilizer, a clay stabilizer, a bactericide, an oxygen scavenger, a pH regulator, a slow release synergist and an organic coupling agent, wherein the mass percent of the heat stabilizer is 1-2%, the mass percent of the clay stabilizer is 3-5%, the mass percent of the bactericide is 1-2%, the mass percent of the oxygen scavenger is 1-2%, the mass percent of the pH regulator is 5-10%, the mass percent of the coupling agent is 20-30%, and the balance is the polymer slow release synergist, and the slow release stabilizer, the heat stabilizer, the clay stabilizer, the bactericide, the oxygen scavenger, the pH regulator and the polymer slow release synergist are mixed according to the proportion, so that the reaction speed of the sand control agent in the stratum and.
And the pore-increasing agent comprises 5-10% of ammonium bicarbonate, 6-8% of aniline methyl triethoxysilane, 20-30% of resin coated sand and the balance of diesel oil by 100%, and the pore-increasing agent is mixed according to the proportion, so that the compressive strength of the sand control agent can be guaranteed, and the stratum after sand consolidation has high permeability retention rate.
The specific speed and time of the stirring can be reasonably set according to actual conditions, in a preferred embodiment, the stirring speed is 500-1000 r/min, the indoor reaction temperature is 20-100 ℃, and the mixture is completely injected into the stratum within 12 hours after being uniformly stirred.
The invention provides a high-permeability retention rate composite sand control agent prepared by the method, which meets the following indexes: (1) appearance, uniform liquid, milky white, free flowing, density 0.95-1.05 (20 ℃); (2) the moisture resistance, heat resistance and aging resistance are good, and the adaptive temperature is 20-90 ℃; (3) the sand control performance (60 ℃, ml/h scouring resistance) is more than or equal to 5000, and the permeability retention rate is more than 92 percent; (4) the sand control grain diameter is more than 0.04 mm. The sand control agent has a wide sand control particle size range, can keep large stratum permeability, and meets the requirement of chemical sand control of unconsolidated sandstone oil reservoirs.
The invention has the advantages and beneficial effects that:
(1) the cost is low, and the construction is simple;
(2) the curing time can be adjusted according to the downhole temperature and the process requirements;
(3) the cured product has high strength and small influence on permeability.
Drawings
FIG. 1a is a microscopic image of micro-nano pores formed after the sand control agent is gelled and cured;
FIG. 1b is a microscopic image of the main crack of the sand control agent after gelling and curing.
Detailed Description
The technical solutions will be described clearly and completely in the following with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and all other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.
Example 1
The composite sand control agent with high permeability retention rate comprises the following components in percentage by mass: 10% of modified inorganic silicate, 20% of composite resin, 10% of cationic polymer, 15% of inducer, 8% of stabilizer, 15% of pore-forming agent and the balance of water.
The modified inorganic silicate is calculated by 100%, wherein the mass percent of the inorganic silicate (potassium silicate) is 50%, the mass percent of the nano white carbon black is 5%, the mass percent of the sodium tripolyphosphate is 10%, and the balance is glass fiber.
The composite resin is calculated by 100 percent, wherein the mass percent of the furfuryl alcohol resin is 60 percent, the mass percent of the urea-formaldehyde resin is 10 percent, and the balance is polyethylene resin.
The cationic polymer is calculated by 100 percent, wherein the mass percent of the water-soluble cationic polyacrylamide is 50 percent, the mass percent of the pregelatinized tapioca starch is 15 percent, the mass percent of the fatty alcohol-polyoxyethylene ether phosphate AEO-3P is 5 percent, and the balance is sodium octadecyl benzene sulfonate (C)24H41NaO3S)。
The mass percent of the inducer is 100%, wherein the mass percent of the hexamethylenetetramine is 20%, the mass percent of the urotropine is 20%, the mass percent of the polyvinyl alcohol is 20%, and the balance is urea.
The slow release stabilizer comprises a heat stabilizer, a clay stabilizer, a bactericide, an oxygen scavenger, a pH regulator, a slow release synergist and an organic coupling agent, wherein the mass percent of the heat stabilizer (magnesium stearate, chemical formula is C36H70MgO4) is 1.5%, the mass percent of the clay stabilizer (small cation, Shaanxi Yuteng energy technology limited company, model YTY-05) is 3%, the mass percent of the bactericide (inorganic nano-silver antibacterial agent-LD 940, Nanjing Tianshi Landun environmental protection technology limited company) is 1%, the mass percent of the oxygen scavenger (GL-170, Shandong Ikeshui limited company) is 1%, the mass percent of the pH regulator (AMP-95 amino methyl propanol, Guangdong Oumei) is 5%, the mass percent of the chemical engineering agent (silane coupling agent HRH69, Shandong Dynzu Yangjintrade limited company) is 30%, and the balance is the polymer slow release synergist (synergistic amine, model 113-48-4, Hubei Zhengxing Source Fine chemical Co., Ltd.).
The pore-increasing agent comprises 5% by mass of ammonium bicarbonate, 6% by mass of aniline methyl triethoxysilane, 30% by mass of resin coated sand and the balance of diesel oil, wherein the pore-increasing agent is calculated by 100%.
According to the preparation method of the sand control agent, according to the quantity standard of 1000KG sand control agent, firstly two stirring tanks are prepared, 100 liters of water is weighed and put into the first stirring tank, then 100 kilograms of modified inorganic silicate, 200 kilograms of composite resin and 100 kilograms of cationic polymer are slowly and uniformly added into the water respectively, and the mixture is uniformly stirred at normal temperature, and if the layering phenomenon exists, the construction effect is not influenced. And simultaneously weighing 120 liters of water, putting the water into a second stirring pool, then adding 150 kg of inducer, 80 kg of stabilizer and 150 kg of pore-increasing agent into the water respectively, and uniformly stirring at normal temperature. The preparation process ensures all the equipment (such as pumps, pipelines and the like) to be normal, the next step can be carried out after no problem is caused, the medicaments prepared by the two stirring tanks are respectively canned (barreled) for storage and marked with stock solution A, B, the medicaments are mixed according to the proportion of 1:1 when in use, the medicaments are pumped into the stratum within 8 hours after mixing, and the storage tank is cleaned in time.
Diluting the clean water of the sand control agent stock solution of the embodiment to 50% concentration according to SY/T5183-2000 oil and gas well production evaluation method, performing a core experiment to mainly determine three indexes of permeability, compressive strength and sand production rate, wherein if the permeability retention rate is more than 75%, the compressive strength is more than 3.5MPa and the sand production rate is less than 0.03%, the product meets the field application quality requirement. Adding diluted 50% sand control agent into a stirring reactor, stirring for 2h, mixing uniformly, and injecting formation sand in sequenceThe particle size is 200 ~ 400 mesh rock core device (be
Steel pipe), closing the well at 50 ℃ for 24 hours, testing permeability and compressive strength, carrying out sand washing experiments with different discharge capacities, filtering the washing liquid, drying and weighing to determine the sand yield. The test results are shown in Table 1, the original permeability of the core is 1.356 multiplied by 10-3um2Wherein, the permeability retention rate is 92.8 percent, the compressive strength is 5.4MPa, sand does not appear, and the quality requirement of field application is met.
Example 2
The difference from example 1 is:
the mass percentage of the composite resin is reduced to 10 percent, and the mass percentage of the inducer is reduced to 10 percent.
The test results are shown in Table 1, and the original permeability of the core in the experiment is 1.745 multiplied by 10-3um2The permeability retention rate is 76.9 percent, the compressive strength is 4.2MPa, the sand yield is 0.087 percent, and the product quality detection requirement is not met.
Example 3
The difference from example 2 is: the pore-increasing agent is reduced to 5 percent.
The test results are shown in Table 1, and the original permeability of the rock core in the experiment is 1.568 multiplied by 10-3um2The permeability retention rate is 61.7 percent, the compressive strength is 3.1MPa, the sand yield is 0.035 percent, and the product quality detection requirement is not met.
Example 4
The difference from example 1 is:
5% of modified inorganic silicate, 5% of composite resin, 5% of cationic polymer, 5% of inducer, 5% of stabilizer, 5% of pore-forming agent and the balance of water.
The test results are shown in Table 1, and the original permeability of the experimental core is 1.413 multiplied by 10-3um2The permeability retention rate is 45.8 percent, the compressive strength is 5.3MPa, and the sand yield is 0.016 percent. And the product quality detection requirement is not met.
Comparative example 1
The differences from example 1 are: the remaining components were the same as in example 1 without adding a stabilizer.
The test results are shown in table 1, and the original permeability of the rock core in the experiment is 1.672 multiplied by 10-3um2The permeability retention rate is 61.2%, the compressive strength is 2.6MPa, and the sand yield is 0.649%.
Comparative example 2
The differences from example 1 are: the other components were the same as in example 1 without addition of a pore-increasing agent.
The test results are shown in Table 1. The original permeability of the rock core in the experiment is 1.669 multiplied by 10-3um2From the comparison of the data, it is found that the permeability retention is 7.0%, the compressive strength is 5.5MPa, and the sand yield is 0.0%, and compared with example 1, the compressive strength is increased, sand is not produced, but the permeability retention is only 7%. The product quality detection requirement is not met.
Comparative example 3
The differences from example 1 are: the same procedure as in example 1 was repeated except that the modified inorganic silicate was not used and potassium silicate alone was used.
The test results are shown in Table 1. The original permeability of the core in the experiment is 1.118 multiplied by 10-3um2The data comparison shows that the permeability retention rate is 77.2%, the compressive strength is 4.4MPa, and the sand yield is 0.012%, compared with the example 1, the product quality detection requirement is met, but the test effect is slightly lower than that of the example 1.
Comparative example 4
The differences from example 1 are: instead of using a composite resin, a single furfuryl alcohol resin is used. The remaining components were the same as in example 1.
The test results are shown in Table 1. The original permeability of the core in the experiment is 1.259 multiplied by 10-3um2The data comparison shows that the permeability retention rate is 80.0%, the compressive strength is 5.2MPa, and the sand yield is 0.027%, compared with the example 1, the product quality detection requirement is met, the test effect is slightly lower than that of the example 1, and the cost is higher than that of the example 1.
Comparative example 5
The differences from example 1 are: the cationic polymer was a single water-soluble polyacrylamide, and the remaining components were the same as in example 1.
The test results are shown in Table 1. The original permeability of the core in this experiment is 1442 × 10-3um2The data comparison shows that the permeability retention rate is 85.6%, the compressive strength is 5.1MPa, and the sand yield is 0.021%, compared with the example 1, the product quality detection requirement is met, the test effect is slightly lower than that of the example 1, and the cost is higher than that of the example 1.
TABLE 1 evaluation of the performance of the composite sand control agent (concentration 50%) in different proportions
As can be seen from Table 1, the composite sand control agent prepared in example 1 has good compressive strength and permeability performance in an indoor experiment, the sand production rate is 0, the site requirements are met, and the cost performance is highest.
The invention is suitable for sand prevention work caused by non-homogeneity in the process of conglomerate reservoir exploitation, and has the advantages of low system viscosity, easy pumping, high strength after cementation, uniform cementation, good moisture resistance, heat resistance and aging resistance, and adaptive temperature of 40-100 ℃; 4h at 100 ℃, the P compression resistance is 5.4MPa, and the permeability (0.4 mm-0.80 mm quartz sand) K is more than or equal to 3.0 mu m2Sand prevention particle size>0.04 mm. The sand control agent has a wide sand control particle size range, can keep large stratum permeability, and meets the requirement of chemical sand control of offshore oil fields.
The 7-well composite sand control is developed in 2018-2020, the repair-free period of operation is increased from 125 days to 256 days, the average sand burying speed is reduced from 0.16m/d to 0.008m/d, the average oil increment of a single well is 3529t, and the sand control effect is obvious.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept, and these changes and modifications are all within the scope of the present invention.
Claims (9)
1. The composite sand control agent with high permeability retention rate is characterized in that: the composite material comprises the following components in percentage by mass: 7-10% of modified inorganic silicate, 15-20% of composite resin, 5-10% of cationic polymer, 10-15% of inducer, 5-8% of stabilizer, 10-15% of pore-increasing agent and the balance of water;
the modified inorganic silicate accounts for 100%, the inorganic silicate accounts for 50-65% by mass, the nano white carbon black accounts for 5-10% by mass, the sodium tripolyphosphate accounts for 10-15% by mass, and the balance is glass fiber;
the composite resin is calculated by 100%, wherein the mass percent of the furfuryl alcohol resin is 60-70%, the mass percent of the urea-formaldehyde resin is 10-15%, and the balance is polyethylene resin;
the cationic polymer accounts for 100%, wherein the mass percent of the water-soluble cationic polyacrylamide is 50-60%, the mass percent of the modified starch is 15-20%, the mass percent of the fatty alcohol-polyoxyethylene ether is 5-10%, and the balance is sodium alkyl benzene sulfonate;
the mass percent of the inducer is 100%, wherein the mass percent of the hexamethylenetetramine is 20-30%, the mass percent of the urotropine is 20-30%, the mass percent of the polyvinyl alcohol is 20-30%, and the balance is urea;
the slow release stabilizer comprises a heat stabilizer, a clay stabilizer, a bactericide, an oxygen scavenger, a PH regulator, a slow release synergist and an organic coupling agent, wherein the mass percent of the heat stabilizer is 1-2%, the mass percent of the clay stabilizer is 3-5%, the mass percent of the bactericide is 1-2%, the mass percent of the oxygen scavenger is 1-2%, the mass percent of the PH regulator is 5-10%, the mass percent of the coupling agent is 20-30%, and the balance is the polymer slow release synergist calculated by 100%;
the pore-increasing agent comprises 5-10% of ammonium bicarbonate, 6-8% of aniline methyl triethoxysilane, 20-30% of resin coated sand and the balance of diesel oil by 100%.
2. The sand control agent of claim 1, wherein: the composite material comprises the following components in percentage by mass: 10% of modified inorganic silicate, 20% of composite resin, 10% of cationic polymer, 15% of inducer, 8% of stabilizer, 15% of pore-forming agent and the balance of water.
3. The sand control agent according to claim 1 or 2, characterized in that: the inorganic silicate is potassium silicate, the mass percent of the inorganic silicate is 50%, the mass percent of the nano white carbon black is 5%, the mass percent of the sodium tripolyphosphate is 10%, and the balance is glass fiber.
4. The sand control agent according to claim 1 or 2, characterized in that: the composite resin is calculated by 100 percent, wherein the mass percent of the furfuryl alcohol resin is 60 percent, the mass percent of the urea-formaldehyde resin is 10 percent, and the balance is polyethylene resin.
5. The sand control agent according to claim 1 or 2, characterized in that: the cationic polymer is calculated by 100%, wherein the mass percent of the water-soluble cationic polyacrylamide is 50%, the mass percent of the modified starch is pre-gelatinized tapioca starch, the mass percent is 15%, the mass percent of the fatty alcohol-polyoxyethylene ether is AEO-3P is 5%, and the balance is sodium octadecyl benzene sulfonate.
6. The sand control agent according to claim 1 or 2, characterized in that: the mass percent of the inducer is 100%, wherein the mass percent of the hexamethylenetetramine is 20%, the mass percent of the urotropine is 20%, the mass percent of the polyvinyl alcohol is 20%, and the balance is urea.
7. The sand control agent according to claim 1 or 2, characterized in that: the slow release stabilizer comprises a heat stabilizer, a clay stabilizer, a bactericide, an oxygen scavenger, a PH regulator, a slow release synergist and an organic coupling agent, wherein the mass percent of the heat stabilizer, the mass percent of the clay stabilizer, the mass percent of the bactericide, the mass percent of the oxygen scavenger, the mass percent of the PH regulator and the mass percent of the coupling agent are respectively 1.5%, 3%, 1%, 30% and the balance of the polymer slow release synergist, calculated by 100%.
8. The sand control agent according to claim 1 or 2, characterized in that: the pore-increasing agent comprises 5% by mass of ammonium bicarbonate, 6% by mass of aniline methyl triethoxysilane, 30% by mass of resin coated sand and the balance of diesel oil, wherein the pore-increasing agent is calculated by 100%.
9. A method for preparing the sand control agent according to claim 1 or 2, wherein: uniformly mixing the modified inorganic silicate, the composite resin, the cationic polymer and part of water to obtain stock solution A; uniformly mixing the inducer, the stabilizer and the pore-increasing agent with water to obtain a stock solution B; respectively storing, and mixing at a ratio of 1:1 when in use.
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Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050051330A1 (en) * | 2003-09-05 | 2005-03-10 | Nguyen Philip D. | Methods for forming a permeable and stable mass in a subterranean formation |
| CA2580304A1 (en) * | 2006-03-08 | 2007-09-08 | Bj Services Company | Curable resin coated low apparent specific gravity beads and method of using the same |
| CN102838975A (en) * | 2011-06-23 | 2012-12-26 | 中国石油天然气集团公司 | Sand-proof consolidation agent |
| CN103882454A (en) * | 2014-03-10 | 2014-06-25 | 苏州捷德瑞精密机械有限公司 | Steel rust removal fluid and preparation method thereof |
| CN104163599A (en) * | 2014-07-14 | 2014-11-26 | 池州市崇源节能建筑材料有限公司 | Energy-saving insulation mortar and preparation method thereof |
| CN105112043A (en) * | 2015-10-14 | 2015-12-02 | 河南天祥新材料股份有限公司 | Low-temperature delayed-curing sand-control proppant, preparation method of proppant as well as low-temperature delayed-curing sand-control system |
| US20160369083A1 (en) * | 2015-06-16 | 2016-12-22 | Baker Hughes Incorporated | Disintegratable polymer composites for downhole tools |
| CN106634920A (en) * | 2016-12-23 | 2017-05-10 | 中国石油大学(华东) | Low-density foam resin sand preventing agent suitable for sand production horizontal well of unconsolidated sandstone reservoir and preparation method of low-density foam resin sand preventing agent |
| CN107129798A (en) * | 2017-04-12 | 2017-09-05 | 中国石油化工股份有限公司 | A kind of high temperature resistant, permeable artificial borehole wall sand prevention agent |
| CN108659805A (en) * | 2018-06-11 | 2018-10-16 | 中国石油大学(华东) | A kind of emulsion-type low temperature sand-fixating agent and the preparation method and application thereof |
| CN109609111A (en) * | 2018-12-27 | 2019-04-12 | 长江大学 | A kind of wood tar resin sand consolidation agent and its preparation method and application |
| CN109652046A (en) * | 2018-12-21 | 2019-04-19 | 中国石油天然气股份有限公司 | A kind of high temperature sand-fixating agent and its preparation and application |
| CN111022011A (en) * | 2019-12-03 | 2020-04-17 | 中国石油化工股份有限公司 | Construction method of foamable resin sand consolidation agent for argillaceous fine silt oil reservoir |
| CN111019621A (en) * | 2019-12-11 | 2020-04-17 | 中国海洋石油集团有限公司 | Blocking remover and preparation method thereof |
| CN111286311A (en) * | 2020-03-03 | 2020-06-16 | 中国石油天然气股份有限公司 | Multiple cross-linking type polymer gel profile control agent and application thereof |
-
2021
- 2021-02-01 CN CN202110135564.6A patent/CN112920786B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050051330A1 (en) * | 2003-09-05 | 2005-03-10 | Nguyen Philip D. | Methods for forming a permeable and stable mass in a subterranean formation |
| CA2580304A1 (en) * | 2006-03-08 | 2007-09-08 | Bj Services Company | Curable resin coated low apparent specific gravity beads and method of using the same |
| CN102838975A (en) * | 2011-06-23 | 2012-12-26 | 中国石油天然气集团公司 | Sand-proof consolidation agent |
| CN103882454A (en) * | 2014-03-10 | 2014-06-25 | 苏州捷德瑞精密机械有限公司 | Steel rust removal fluid and preparation method thereof |
| CN104163599A (en) * | 2014-07-14 | 2014-11-26 | 池州市崇源节能建筑材料有限公司 | Energy-saving insulation mortar and preparation method thereof |
| US20160369083A1 (en) * | 2015-06-16 | 2016-12-22 | Baker Hughes Incorporated | Disintegratable polymer composites for downhole tools |
| CN105112043A (en) * | 2015-10-14 | 2015-12-02 | 河南天祥新材料股份有限公司 | Low-temperature delayed-curing sand-control proppant, preparation method of proppant as well as low-temperature delayed-curing sand-control system |
| CN106634920A (en) * | 2016-12-23 | 2017-05-10 | 中国石油大学(华东) | Low-density foam resin sand preventing agent suitable for sand production horizontal well of unconsolidated sandstone reservoir and preparation method of low-density foam resin sand preventing agent |
| CN107129798A (en) * | 2017-04-12 | 2017-09-05 | 中国石油化工股份有限公司 | A kind of high temperature resistant, permeable artificial borehole wall sand prevention agent |
| CN108659805A (en) * | 2018-06-11 | 2018-10-16 | 中国石油大学(华东) | A kind of emulsion-type low temperature sand-fixating agent and the preparation method and application thereof |
| CN109652046A (en) * | 2018-12-21 | 2019-04-19 | 中国石油天然气股份有限公司 | A kind of high temperature sand-fixating agent and its preparation and application |
| CN109609111A (en) * | 2018-12-27 | 2019-04-12 | 长江大学 | A kind of wood tar resin sand consolidation agent and its preparation method and application |
| CN111022011A (en) * | 2019-12-03 | 2020-04-17 | 中国石油化工股份有限公司 | Construction method of foamable resin sand consolidation agent for argillaceous fine silt oil reservoir |
| CN111019621A (en) * | 2019-12-11 | 2020-04-17 | 中国海洋石油集团有限公司 | Blocking remover and preparation method thereof |
| CN111286311A (en) * | 2020-03-03 | 2020-06-16 | 中国石油天然气股份有限公司 | Multiple cross-linking type polymer gel profile control agent and application thereof |
Non-Patent Citations (2)
| Title |
|---|
| SAURABH MISHRAKEKA OJHA: "Application of an improvised inorganic–organic chemical mixture to consolidate loose sand formations in oil fields", 《JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING》 * |
| 潘一; 杨尚羽; 杨双春; 张立明: "化学防砂剂的研究进展", 《油田化学》 * |
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