CN102942334A - Film-coated modified propping agent, and preparation method and application thereof - Google Patents
Film-coated modified propping agent, and preparation method and application thereof Download PDFInfo
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- CN102942334A CN102942334A CN2012104062703A CN201210406270A CN102942334A CN 102942334 A CN102942334 A CN 102942334A CN 2012104062703 A CN2012104062703 A CN 2012104062703A CN 201210406270 A CN201210406270 A CN 201210406270A CN 102942334 A CN102942334 A CN 102942334A
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Abstract
The invention discloses a film-coated modified propping agent, and a preparation method and an application thereof. The film-coated modified propping agent is composed of a matrix and a resin layer uniformly coated out of the matrix, wherein the matrix is Hobq quartz sand; the resin layer is 1-10 wt% based on that of the matrix; and the resin layer comprises a resin binder and a curing agent, wherein the resin binder is bisphenol A epoxy resin, polyurethane resin or a combination thereof, the curing agent is an aliphatic polyamine curing agent an oralicyclic amine curing agent, and the usage amount of the curing agent is 10-50 wt% based on that of the resin layer. The preparation method of the film-coated modified propping agent is that the resin layer is coated on the outer surface of the matrix. The film-coated modified propping agent can be applied in fields of fracturing exploitation of oil and gas wells, is helpful to increase sand ratio and reduce usage amount of fracturing liquid, can effectively prevent backflow phenomenon, alleviates insertion of the propping agent, increases crack diversion capability, prolongs fracturing validity period, is helpful to increase oil output, reduces water yield and has significant meaning for solving the exploitation of low permeability oil field.
Description
Technical field
The present invention relates to a kind of overlay film modification propping agent for oil, Natural Gas Well pressure break exploitation field and its preparation method and application.
Background technology
When petroleum fracturing propping agent is mainly used in oil, Sweet natural gas deep mining, particularly well depth is at the oil more than 2000 meters, the material that must use when air to open is adopted, proppant in high intensity is filled in the formation fractures in hyposmosis mineral deposit, carry out high closed fracture treatment, with supporting crack not stress discharge and close and, allow oil, gas from the passage of crack, compile, thereby the high flow conductivity that keeps oil, gas, increase oil, gas output, prolong oil, the gas well length of service, improve oil recovery, gas economic benefit.
At present both at home and abroad the used propping agent of fracturing technology is mainly take quartz sand and haydite as main, but quartz sand is propping agent commonly used at present, and relative density is about 2.5.Because it is inexpensive, all kinds of stratum of centering shallow well use quartz sand as propping agent certain success ratio to be arranged.And quartz sand insufficient strength high (the broken pressure of beginning is about 28MPa), so can not be used for deep well fracturing.In the higher situation of locking pressure, sand grains will be broken, produces a large amount of fragments and finely powdered sand.These fine silts move in the crack and stop up flow passage, thereby greatly reduce the flow conductivity in crack.
Summary of the invention
Technical problem to be solved by this invention provides a kind of overlay film modification propping agent and its preparation method and application, has solved the problems referred to above.
Technical problem to be solved by this invention is achieved through the following technical solutions:
A kind of overlay film modification propping agent is characterized in that: by matrix and the resin layer that evenly is coated on outer surface of matrix form; Described matrix is its quartz sand of storehouse cloth; Described resin layer accounts for the 1-10wt% of matrix;
Described resin layer comprises resin glue and solidifying agent, described resin glue is bisphenol A type epoxy resin, urethane resin or its composition, described solidifying agent is aliphatic polyamine or alicyclic polyamine class solidifying agent, and hardener dose accounts for the 10-50wt% of resin layer.
Preferred described resin layer accounts for the 3-7wt% of matrix; Hardener dose accounts for the 27-40wt% of resin layer.
Described overlay film modification propping agent is characterized in that adding hydrophobic polymer in the described resin glue.
Described overlay film modification propping agent, when it is characterized in that described resin glue is Resins, epoxy and urethane resin combination, urethane resin is the 5-50wt% of resin glue.
Described overlay film modification propping agent is characterized in that described urethane resin is that aliphatic polyol and polyisocyanates are polymerized.
Described overlay film modification propping agent is characterized in that described polyisocyanates is tolylene diisocyanate, diphenylmethanediisocyanate, hexamethylene diisocyanate, isophorone diisocyanate one or a combination set of thing.
Described overlay film modification propping agent is characterized in that: described hydrophobic polymer is silicone resin; Described silicone resin accounts for the 1-10wt% of resin layer.
Described overlay film modification propping agent is characterized in that: described silicone resin is r-aminopropyltriethoxywerene werene, r-glycidyl ether oxygen propoxy-propyl trimethoxy silicane, N-(β-aminoethyl)-r-aminopropyl methyl dimethoxysilane or its mixture.
Described overlay film modification propping agent is characterized in that: the sand grains particle diameter of described storehouse its quartz sand of cloth is 0.106mm-3.35mm.
The preparation method of described overlay film modification propping agent is comprised of following steps:
(a) cloth its quartz sand in storehouse is heated to 200-300 ℃, pours in the sand mill;
(b) when 180-200 ℃ of its quartz sand of storehouse cloth, add hydrophobic polymer, stir 30-90s;
(c) add resin glue, stir 60-100s;
(d) add solidifying agent and stir 100-180s, cause Desert Sand to disperse fully;
(e) cool off, sieve, pack.
Described overlay film modification propping agent is in the application in oil, Natural Gas Well pressure break exploitation field.
Technical problem to be solved by this invention provides a kind of overlay film modification propping agent, coat one deck macromolecular material on quartz sand aggregate surface by high-tech means and consist of, have that relative density is little, the high and low percentage of damage of intensity, circularity, a sphericity and unreactiveness is good and can be in characteristics such as down-hole low-temperature concretions.Can be widely used in oil field compression fracture and sand-preventing process, be beneficial to and carry high sand ratio, reduce the fracturing liquid consumption, prevent from effectively that propping agent from returning to tell phenomenon, alleviate proppant embedment, improve fracture flow capacity, prolong improvement.Be conducive to improve oil yield, reduce aquifer yield, be significant to solving the low-permeability oilfield exploitation.
Embodiment
Embodiment 1
Accurate raw materials weighing (Kg): the sand grains particle diameter is its quartz sand 100 of storehouse cloth of 0.106mm-3.35mm, bisphenol A type epoxy resin 0.85, aliphatic polyamine class solidifying agent 0.1, r-aminopropyltriethoxywerene werene 0.05.
The preparation method of described overlay film modification propping agent is comprised of following steps:
(a) cloth its quartz sand in storehouse is heated to 200-300 ℃, pours in the sand mill;
(b) when 180-200 ℃ of its quartz sand of storehouse cloth, add hydrophobic polymer, stir 30-90s;
(c) add resin glue, stir 60-100s;
(d) add solidifying agent and stir 100-180s, cause Desert Sand to disperse fully;
(e) cool off, sieve, pack.
Embodiment 2
Accurate raw materials weighing (Kg): the sand grains particle diameter is its quartz sand 100 of storehouse cloth of 0.106mm-3.35mm, urethane resin 2.15, aliphatic polyamine class solidifying agent 0.81, r-glycidyl ether oxygen propoxy-propyl trimethoxy silicane 0.04.
The preparation method of described overlay film modification propping agent is comprised of following steps:
(a) cloth its quartz sand in storehouse is heated to 200-300 ℃, pours in the sand mill;
(b) when 180-200 ℃ of its quartz sand of storehouse cloth, add hydrophobic polymer, stir 30-90s;
(c) add resin glue, stir 60-100s;
(d) add solidifying agent and stir 100-180s, cause Desert Sand to disperse fully;
(e) cool off, sieve, pack.
Embodiment 3
Accurate raw materials weighing (Kg): the sand grains particle diameter is its quartz sand 100 of storehouse cloth of 0.106mm-3.35mm, urethane resin and bisphenol A type epoxy resin totally 3.85, urethane resin accounts for 5wt%, alicyclic polyamine class solidifying agent 2.8, N-(β-aminoethyl)-r-aminopropyl methyl dimethoxysilane 0.35.
The preparation method of described overlay film modification propping agent is comprised of following steps:
(a) cloth its quartz sand in storehouse is heated to 200-300 ℃, pours in the sand mill;
(b) when 180-200 ℃ of its quartz sand of storehouse cloth, add hydrophobic polymer, stir 30-60s;
(c) add resin glue, stir 60-100s;
(d) add solidifying agent and stir 100-180s, cause Desert Sand to disperse fully;
(e) cool off, sieve, pack.
Embodiment 4
Accurate raw materials weighing (Kg): the sand grains particle diameter is its quartz sand 100 of storehouse cloth of 0.106mm-3.35mm, urethane resin and bisphenol A type epoxy resin totally 4, urethane resin accounts for 50wt%, alicyclic polyamine class solidifying agent 5, r-aminopropyltriethoxywerene werene 1.
The preparation method of described overlay film modification propping agent is comprised of following steps:
(a) cloth its quartz sand in storehouse is heated to 200-300 ℃, pours in the sand mill;
(b) when 180-200 ℃ of its quartz sand of storehouse cloth, add hydrophobic polymer, stir 30-60s;
(c) add resin glue, stir 60-100s;
(d) add solidifying agent and stir 100-180s, cause Desert Sand to disperse fully;
(e) cool off, sieve, pack.
Embodiment 5
Accurate raw materials weighing (Kg): the sand grains particle diameter is its quartz sand 100 of storehouse cloth of 0.106mm-3.35mm, urethane resin and bisphenol A type epoxy resin totally 2.75, urethane resin accounts for 25wt%, aliphatic polyamine class solidifying agent 1.75, hydrophobic polymer 0.5, hydrophobic polymer are that r-aminopropyltriethoxywerene werene, r-glycidyl ether oxygen propoxy-propyl trimethoxy silicane and N-(β-aminoethyl)-r-aminopropyl methyl dimethoxysilane equal proportion is mixed.
The preparation method of described overlay film modification propping agent is comprised of following steps:
(a) cloth its quartz sand in storehouse is heated to 200-300 ℃, pours in the sand mill;
(b) when 180-200 ℃ of its quartz sand of storehouse cloth, add hydrophobic polymer, stir 30-60s;
(c) add resin glue, stir 60-100s;
(d) add solidifying agent and stir 100-180s, cause Desert Sand to disperse fully;
(e) cool off, sieve, pack.
Embodiment 6
Exploit the application in field in oil, Natural Gas Well pressure break according to the overlay film modification propping agent of embodiment 1-5 preparation.
| Test item | Acid solubility % | Turbidity NTU | The broken % of 28Mpa |
| Embodiment 1 | 1.26 | 15 | 0.68 |
| Embodiment 2 | 1.31 | 17 | 0.77 |
| Embodiment 3 | 1.35 | 17 | 0.80 |
| Its quartz sand of storehouse cloth | 9.73 | 89 | 13.41 |
Claims (10)
1. overlay film modification propping agent is characterized in that: by matrix and the resin layer that evenly is coated on outer surface of matrix form; Described matrix is its quartz sand of storehouse cloth; Described resin layer accounts for the 1-10wt% of matrix;
Described resin layer comprises resin glue and solidifying agent, described resin glue is bisphenol A type epoxy resin, urethane resin or its composition, described solidifying agent is aliphatic polyamine or alicyclic polyamine class solidifying agent, and hardener dose accounts for the 10-50wt% of resin layer.
2. overlay film modification propping agent as claimed in claim 1, it is characterized in that: described resin layer accounts for the 3-7wt% of matrix; Hardener dose accounts for the 27-40wt% of resin layer.
3. overlay film modification propping agent as claimed in claim 1 or 2 is characterized in that adding hydrophobic polymer in the described resin glue; Described hydrophobic polymer is silicone resin; Described silicone resin accounts for the 1-10wt% of resin layer.
4. overlay film modification propping agent as claimed in claim 1 or 2, when it is characterized in that described resin glue is Resins, epoxy and urethane resin combination, urethane resin is the 5-50wt% of resin glue.
5. overlay film modification propping agent as claimed in claim 1 is characterized in that described urethane resin is that aliphatic polyol and polyisocyanates are polymerized.
6. overlay film modification propping agent as claimed in claim 4 is characterized in that described polyisocyanates is tolylene diisocyanate, diphenylmethanediisocyanate, hexamethylene diisocyanate, isophorone diisocyanate one or a combination set of thing.
7. overlay film modification propping agent as claimed in claim 3, it is characterized in that: described silicone resin is r-aminopropyltriethoxywerene werene, r-glycidyl ether oxygen propoxy-propyl trimethoxy silicane, N-(β-aminoethyl)-r-aminopropyl methyl dimethoxysilane or its mixture.
8. overlay film modification propping agent as claimed in claim 1 or 2, it is characterized in that: the sand grains particle diameter of described storehouse its quartz sand of cloth is 0.106mm-3.35mm.
9. the preparation method of the described overlay film modification of one of claim 1-8 propping agent is comprised of following steps:
(a) cloth its quartz sand in storehouse is heated to 200-300 ℃, pours in the sand mill;
(b) when 180-200 ℃ of its quartz sand of storehouse cloth, add hydrophobic polymer, stir 30-90s;
(c) add resin glue, stir 60-100s;
(d) add solidifying agent and stir 100-180s, cause Desert Sand to disperse fully;
(e) cool off, sieve, pack.
10. the described overlay film modification of one of claim 1-8 propping agent is in the application in oil, Natural Gas Well pressure break exploitation field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210406270.3A CN102942334B (en) | 2012-10-24 | 2012-10-24 | A kind of overlay film modification propping agent and its preparation method and application |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210406270.3A CN102942334B (en) | 2012-10-24 | 2012-10-24 | A kind of overlay film modification propping agent and its preparation method and application |
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| Publication Number | Publication Date |
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| CN102942334A true CN102942334A (en) | 2013-02-27 |
| CN102942334B CN102942334B (en) | 2016-02-17 |
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| CN201210406270.3A Expired - Fee Related CN102942334B (en) | 2012-10-24 | 2012-10-24 | A kind of overlay film modification propping agent and its preparation method and application |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105934495A (en) * | 2013-11-26 | 2016-09-07 | 巴斯夫欧洲公司 | Proppant |
| CN106085406A (en) * | 2016-07-15 | 2016-11-09 | 重庆长江造型材料（集团）股份有限公司 | A kind of preparation method of environment protection type high-strength resin coated propping agent |
| CN106190094A (en) * | 2016-07-15 | 2016-12-07 | 重庆长江造型材料（集团）股份有限公司 | A kind of environment protection type high-strength resin coated propping agent |
| CN106675549A (en) * | 2016-12-05 | 2017-05-17 | 北京奇想达新材料有限公司 | Water suspensible propping agent for oil and gas well fracturing and preparation method thereof |
| CN107109205A (en) * | 2014-12-30 | 2017-08-29 | 佐治亚-太平洋化工品有限公司 | The coating proppant and its application method of the coating containing super branched polyurethane |
| CN107235673A (en) * | 2017-06-29 | 2017-10-10 | 武威奥维特建材有限公司 | Desert Sand Non-steamed aerated block production technology |
| CN109233797A (en) * | 2018-10-09 | 2019-01-18 | 西南大学 | Overlay film fracturing propping agents based on polyurethane and preparation method thereof |
| CN109906255A (en) * | 2016-11-02 | 2019-06-18 | 瓦克化学股份公司 | Modified reactive resin compositions and its purposes for coating proppant |
| CN110699062A (en) * | 2019-10-30 | 2020-01-17 | 大港油田集团有限责任公司 | Epoxy resin coating proppant and preparation method and construction process thereof |
| CN112031724A (en) * | 2020-07-31 | 2020-12-04 | 中国地质大学（武汉） | Method for observing hydraulic fracturing fracture of coal-bed gas well |
| CN112724951A (en) * | 2019-10-28 | 2021-04-30 | 中国石油化工股份有限公司 | Water-control consolidated sand and preparation method thereof |
| CN113337266A (en) * | 2021-04-21 | 2021-09-03 | 四川省帕提科斯能源科技有限公司 | Fracturing fluid system for enhancing pressure bearing capacity of proppant and application method thereof |
| CN114540003A (en) * | 2021-12-31 | 2022-05-27 | 新疆中凌工程技术有限公司 | Proppant fracture surface flow conductivity reinforcing agent for volume fracturing |
| CN115678534A (en) * | 2021-07-29 | 2023-02-03 | 中国石油化工股份有限公司 | Proppant and preparation method and application thereof |
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| CN1995257A (en) * | 2005-12-26 | 2007-07-11 | 秦升益 | Weatherable water-permeable binder |
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Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105934495B (en) * | 2013-11-26 | 2020-10-27 | 巴斯夫欧洲公司 | Proppant |
| CN105934495A (en) * | 2013-11-26 | 2016-09-07 | 巴斯夫欧洲公司 | Proppant |
| US10501683B2 (en) | 2013-11-26 | 2019-12-10 | Basf Se | Proppant |
| CN107109205A (en) * | 2014-12-30 | 2017-08-29 | 佐治亚-太平洋化工品有限公司 | The coating proppant and its application method of the coating containing super branched polyurethane |
| CN106085406A (en) * | 2016-07-15 | 2016-11-09 | 重庆长江造型材料（集团）股份有限公司 | A kind of preparation method of environment protection type high-strength resin coated propping agent |
| CN106190094A (en) * | 2016-07-15 | 2016-12-07 | 重庆长江造型材料（集团）股份有限公司 | A kind of environment protection type high-strength resin coated propping agent |
| CN106085406B (en) * | 2016-07-15 | 2019-05-21 | 重庆长江造型材料（集团）股份有限公司 | A kind of preparation method of environment protection type high-strength resin coated propping agent |
| CN106190094B (en) * | 2016-07-15 | 2020-01-07 | 重庆长江造型材料（集团）股份有限公司 | Environment-friendly high-strength resin coated proppant |
| CN109906255B (en) * | 2016-11-02 | 2021-04-16 | 瓦克化学股份公司 | Modified reactive resin composition and use thereof for coating proppants |
| CN109906255A (en) * | 2016-11-02 | 2019-06-18 | 瓦克化学股份公司 | Modified reactive resin compositions and its purposes for coating proppant |
| CN106675549A (en) * | 2016-12-05 | 2017-05-17 | 北京奇想达新材料有限公司 | Water suspensible propping agent for oil and gas well fracturing and preparation method thereof |
| CN107235673A (en) * | 2017-06-29 | 2017-10-10 | 武威奥维特建材有限公司 | Desert Sand Non-steamed aerated block production technology |
| CN109233797A (en) * | 2018-10-09 | 2019-01-18 | 西南大学 | Overlay film fracturing propping agents based on polyurethane and preparation method thereof |
| CN112724951A (en) * | 2019-10-28 | 2021-04-30 | 中国石油化工股份有限公司 | Water-control consolidated sand and preparation method thereof |
| CN112724951B (en) * | 2019-10-28 | 2023-04-07 | 中国石油化工股份有限公司 | Water-control consolidated sand and preparation method thereof |
| CN110699062A (en) * | 2019-10-30 | 2020-01-17 | 大港油田集团有限责任公司 | Epoxy resin coating proppant and preparation method and construction process thereof |
| CN110699062B (en) * | 2019-10-30 | 2021-09-28 | 大港油田集团有限责任公司 | Epoxy resin coating proppant and preparation method and construction process thereof |
| CN112031724A (en) * | 2020-07-31 | 2020-12-04 | 中国地质大学（武汉） | Method for observing hydraulic fracturing fracture of coal-bed gas well |
| CN112031724B (en) * | 2020-07-31 | 2022-06-24 | 中国地质大学（武汉） | Method for observing hydraulic fracturing fracture of coal-bed gas well |
| CN113337266A (en) * | 2021-04-21 | 2021-09-03 | 四川省帕提科斯能源科技有限公司 | Fracturing fluid system for enhancing pressure bearing capacity of proppant and application method thereof |
| CN115678534A (en) * | 2021-07-29 | 2023-02-03 | 中国石油化工股份有限公司 | Proppant and preparation method and application thereof |
| CN115678534B (en) * | 2021-07-29 | 2024-03-19 | 中国石油化工股份有限公司 | Propping agent and preparation method and application thereof |
| CN114540003A (en) * | 2021-12-31 | 2022-05-27 | 新疆中凌工程技术有限公司 | Proppant fracture surface flow conductivity reinforcing agent for volume fracturing |
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