CN102399545B - Sand washing and well washing agent for oil well - Google Patents
Sand washing and well washing agent for oil well Download PDFInfo
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- CN102399545B CN102399545B CN2011104018693A CN201110401869A CN102399545B CN 102399545 B CN102399545 B CN 102399545B CN 2011104018693 A CN2011104018693 A CN 2011104018693A CN 201110401869 A CN201110401869 A CN 201110401869A CN 102399545 B CN102399545 B CN 102399545B
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- 239000003129 oil well Substances 0.000 title claims abstract description 44
- 238000005406 washing Methods 0.000 title abstract description 36
- 239000004576 sand Substances 0.000 title abstract description 35
- 239000003795 chemical substances by application Substances 0.000 title abstract description 6
- 238000011010 flushing procedure Methods 0.000 claims abstract description 72
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 26
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 26
- 229940051841 polyoxyethylene ether Drugs 0.000 claims abstract description 25
- 229920000056 polyoxyethylene ether Polymers 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 235000012538 ammonium bicarbonate Nutrition 0.000 claims abstract description 12
- 239000012459 cleaning agent Substances 0.000 claims description 35
- -1 polyoxyethylene Polymers 0.000 claims description 24
- 238000003756 stirring Methods 0.000 claims description 17
- 150000001408 amides Chemical class 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 12
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 claims description 11
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 11
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 11
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 claims description 11
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 11
- 235000011152 sodium sulphate Nutrition 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 210000003298 dental enamel Anatomy 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 abstract description 29
- 238000010276 construction Methods 0.000 abstract description 10
- 239000012530 fluid Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 2
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 abstract 1
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 abstract 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 abstract 1
- 239000001099 ammonium carbonate Substances 0.000 abstract 1
- 150000007942 carboxylates Chemical class 0.000 abstract 1
- DTPCFIHYWYONMD-UHFFFAOYSA-N decaethylene glycol Polymers OCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO DTPCFIHYWYONMD-UHFFFAOYSA-N 0.000 abstract 1
- 235000014113 dietary fatty acids Nutrition 0.000 abstract 1
- 239000000194 fatty acid Substances 0.000 abstract 1
- 229930195729 fatty acid Natural products 0.000 abstract 1
- 150000004665 fatty acids Chemical class 0.000 abstract 1
- 229910052708 sodium Inorganic materials 0.000 abstract 1
- 239000011734 sodium Substances 0.000 abstract 1
- LGORLCOUTMVEAC-UHFFFAOYSA-M sodium;2-nonylphenolate Chemical compound [Na+].CCCCCCCCCC1=CC=CC=C1[O-] LGORLCOUTMVEAC-UHFFFAOYSA-M 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 15
- 239000013543 active substance Substances 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000006260 foam Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 239000003599 detergent Substances 0.000 description 3
- 239000003995 emulsifying agent Substances 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- UXUFTKZYJYGMGO-CMCWBKRRSA-N (2s,3s,4r,5r)-5-[6-amino-2-[2-[4-[3-(2-aminoethylamino)-3-oxopropyl]phenyl]ethylamino]purin-9-yl]-n-ethyl-3,4-dihydroxyoxolane-2-carboxamide Chemical compound O[C@@H]1[C@H](O)[C@@H](C(=O)NCC)O[C@H]1N1C2=NC(NCCC=3C=CC(CCC(=O)NCCN)=CC=3)=NC(N)=C2N=C1 UXUFTKZYJYGMGO-CMCWBKRRSA-N 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 206010040880 Skin irritation Diseases 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000005202 decontamination Methods 0.000 description 2
- 230000003588 decontaminative effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 230000036556 skin irritation Effects 0.000 description 2
- 231100000475 skin irritation Toxicity 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 241000282326 Felis catus Species 0.000 description 1
- 240000005049 Prunus salicina Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000008233 hard water Substances 0.000 description 1
- 239000003845 household chemical Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 235000009018 li Nutrition 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 230000014207 opsonization Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002453 shampoo Substances 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
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- Detergent Compositions (AREA)
Abstract
The sand washing and well washing agent for oil well is used in sand washing and well washing of oil well. The weight percentages of the components are as follows: sodium nonylphenol polyoxyethylene ether sulfate: 12.5-13.5%; fatty acid monoethanolamide polyoxyethylene ether sulfate: 6.5-7.0%; sodium alkylphenol polyoxyethylene (10) ether sulfate: 10.5-11.0%; alkylphenol polyoxyethylene ether carboxylate: 5.5-6.0%; ammonium bicarbonate: 4.5-5.0%; the balance of water. The effect is as follows: and adding 0.5-1.0% of oil well sand washing and well flushing agent into water to obtain the sand washing and well flushing fluid. The sand washing and well washing liquid is used for carrying out sand washing and well washing construction, and the sand washing efficiency is improved by 50-73%.
Description
Technical field
The present invention relates to the oil extraction in oil field technical field, particularly a kind of sand-flushing well-cleaning agent for oil well and preparation method thereof.
Background technology
Along with going deep into of oil-field development, the part sand production in oil is serious, and the interval certain hour just need to carry out the sand washing operation.Oil field, on the well-flushing sand washing process, all adopted sewage to carry out in the past, the problem that oil reservoir, sand washing are thorough but the flushing fluid existed in the sand washing process bleeds, sand setting returns to oil reservoir.
Japanese plum is attained oil well Study on sand cleaning out device by negative pressure one literary composition that is published on 03 phase in 2004 " oil field equipment " and is returned to the problem of oil reservoir for bleed oil reservoir and sand setting of the flushing fluid existed in normal sand washing process; designed a kind of sand cleaning out device by negative pressure; use this device original sand washing can be become and take out sand; make bottomhole wellbore pressure be less than all the time sand pressure, reach the purpose of protection oil reservoir in the sand washing process.Article has carried out theoretical analysis to this device, has provided basic method of calculation.
Li Shengbiao be published in the research of heavy oil wells lost circulation prevention sand-flushing pipe column on the 01st phase in 2004 " petroleum geology and engineering " and application one literary composition introduce Heavy Oil in Henan Oilfield have bury shallow, the reservoir loose cementation, poor diagenetic grade, the characteristics that the shale index ratio is large, in the injection of steam stimulation, adopt by force under condition, the mutual variation of near wellbore formation experience High Temperature High Pressure stimulates, and adds that viscosity of thickened oil is large, kick and prop-carrying capacity are strong, cause oil well to shake out in various degree.Thick oil thermal extraction enters the high cycle and handles up after the production phase in addition, the reservoir pressure fall is large, producing energy can not be supplemented, cause stratum in debt serious, reservoir pressure is lower than the well liquid column pressure, during sand washing, liquid can not return pit shaft and maybe sand can't be gone out to ground, causes oil well normally to produce, and therefore solving heavy crude heat extraction absorption well sand flushing problem has arrived instant stage.
Shao Guolin is published in aerated fluid sand-flushing technique on the 1st phase in 2008 " oil and gas journal " the geologic development characteristics of a literary composition for Gudong field of applying at Gudong field, by the characteristic research to aerated fluid, explored aerated fluid sand-flushing technique; By the design to oil producing operation construction middle part division technique and perfect, make this technique obtain effect preferably.The aerated fluid technology can solve many produce difficult points that oil reservoir is produced the later stage better, and can create sizable economic benefit.
Summary of the invention
The objective of the invention is: a kind of sand-flushing well-cleaning agent for oil well is provided, can realizes the oil well sand washing well-flushing, utilize stratum air pressure and well-flushing to inject the equal fine foam that pressure reduction produces, fluid density is reduced, liquid level rises, and increases discharge opeing ability and carrying capacity, the low oil well sand washing for pressure factor.
The technical solution used in the present invention is: sand-flushing well-cleaning agent for oil well, and each component of employing comprises:
1, nonylphenol polyoxyethylene ether sulfate, another name: tensio-active agent NPES; Huang Hongzhou chief editor's Chinese tensio-active agent overview one book, the 173rd page, Chemical Industry Press;
Character: amber transparent liquid, water-soluble, foam is abundant, and the good decontamination performance of deoiling is arranged, little to skin irritation.Purposes: as detergent and emulsifying agent, be widely used in liquid washing agent, hard surface detergent.Industrial for textile auxiliary agent, the aspects such as letex polymerization.Production unit: Beijing Daily-use Chenmical Inst., Liaoning Prov. Chemical Industry Inst..
2, fatty monoethanol amide polyoxyethylene ether sulfate, another name, amide ether sulfate; The 173rd page of Huang Hongzhou chief editor's Chinese tensio-active agent overview one book, Chemical Industry Press;
Character: product toxicity is low, readily biodegradable, and foam stabilization and abundant, dispersion of calcium soap is strong.Purposes: wash and multiple household chemicals for shampoo, meal, particularly be used in " two-in-one " articles for washing performance better.Because this product can directly and positively charged ion is composite produce salt, and synergistic effect is arranged, can improve foaming power, hair is had to opsonization.Can be used as additive and emulsifying agent etc. in industrial circle.Production unit: China Daily Chemical Industry Research Institute.
3, alkylphenol-polyethenoxy (10) ether sodium sulfate; The 174th page of Huang Hongzhou chief editor's Chinese tensio-active agent overview one book, Chemical Industry Press;
Character: amber transparent liquid, good stability, foam is abundant, and good washing, decontamination and degreasing performance are arranged.Low toxicity is little to skin irritation.Purposes: can make washing composition, emulsifying agent etc., for hard surface cleaner, liquid washing agent and textile auxiliary agent etc.
4, alkylphenol polyoxyethylene carboxylate salt, name: APEC; The 181st page of Huang Hongzhou chief editor's Chinese tensio-active agent overview one book, Chemical Industry Press;
Character: light yellow transparent liquid, there is lower surface tension, higher foam power, seepage force and detersive power, be good tensio-active agent, also can with cats product or polymkeric substance compatibility.There is good anti-hard water and dispersiveness.Purposes: good permeate agent and detergent raw material.
5, bicarbonate of ammonia.
6, water.
Each weight percentages of components of sand-flushing well-cleaning agent for oil well is:
1, nonylphenol polyoxyethylene ether sulfate, another name: tensio-active agent NPES:12.5～13.5%;
2, fatty monoethanol amide polyoxyethylene ether sulfate: 6.5～7.0%;
3, alkylphenol-polyethenoxy (10) ether sodium sulfate: 10.5～11.0%;
4, alkylphenol polyoxyethylene carboxylate salt, another name: APEC:5.5～6.0%;
5, bicarbonate of ammonia: 4.5～5.0%;
6, all the other are water.
The production method of sand-flushing well-cleaning agent for oil well
Major equipment: the enamel reaction still with 2000L of stirring, heating, refrigerating function.
Production method: at first, nonylphenol polyoxyethylene ether sulfate, fatty monoethanol amide polyoxyethylene ether sulfate, base phenol polyethenoxy (10) ether sodium sulfate, alkylphenol polyoxyethylene carboxylate salt, etc. four kinds of raw materials add by weight enamel reaction still.Slowly be warmed up to 65～75 ℃.Secondly, under constantly stirring, first add and should add 10% of the water yield, continue stirring and within 60 minutes, stop heating, stir on cooling limit, limit, cooling and be stirred to normal temperature, then add bicarbonate of ammonia, the limit edged stirs, then add remaining water, stir 30 minutes, obtain sand-flushing well-cleaning agent for oil well.
The using method of summary sand-flushing well-cleaning agent for oil well during the sand washing construction, adds 0.5～1.0% sand-flushing well-cleaning agent for oil well in water, obtains sand-flushing liquid, then utilizes sand-flushing liquid to carry out normal sand washing construction.Field technician and operator are familiar with this work.
Beneficial effect of the present invention: add sand-flushing well-cleaning agent for oil well of the present invention in water, obtain sand-flushing liquid, the concentration of sand-flushing well-cleaning agent for oil well in sand-flushing liquid is 0.5～1.0%.Utilize this sand-flushing liquid to carry out the sand-flushing construction, improve sand washing efficiency 50～73%.
Embodiment
Embodiment 1: sand-flushing well-cleaning agent for oil well, and each weight percentages of components is:
1, nonylphenol polyoxyethylene ether sulfate: 12.5%;
2, fatty monoethanol amide polyoxyethylene ether sulfate: 6.5%;
3, alkylphenol-polyethenoxy (10) ether sodium sulfate: 11.0%;
4, alkylphenol polyoxyethylene carboxylate salt: 6.0%;
5, bicarbonate of ammonia: 4.5%;
6, water is 59.5%.
The production method of sand-flushing well-cleaning agent for oil well: major equipment: the enamel reaction still with 2000L of stirring, heating, refrigerating function.
At first, nonylphenol polyoxyethylene ether sulfate, fatty monoethanol amide polyoxyethylene ether sulfate, base phenol polyethenoxy (10) ether sodium sulfate, alkylphenol polyoxyethylene carboxylate salt, etc. four kinds of raw materials add by weight enamel reaction still.Slowly be warmed up to 70 ℃.Secondly, under constantly stirring, first add and should add 10% of the water yield, continue stirring and within 60 minutes, stop heating, stir on cooling limit, limit, cooling and be stirred to normal temperature, then add bicarbonate of ammonia, the limit edged stirs, then add remaining water, stir 30 minutes, obtain sand-flushing well-cleaning agent for oil well.Result of use: in the water in well site, add embodiment 1 sand-flushing well-cleaning agent for oil well to obtain sand-flushing liquid, the concentration of sand-flushing well-cleaning agent for oil well in sand-flushing liquid is 0.6%.Utilize this sand-flushing liquid to carry out the sand-flushing construction, improve sand washing efficiency 52%.
Embodiment 2: sand-flushing well-cleaning agent for oil well, and each weight percentages of components is:
1, nonylphenol polyoxyethylene ether sulfate: 12.7%;
2, fatty monoethanol amide polyoxyethylene ether sulfate: 6.6%;
3, alkylphenol-polyethenoxy (10) ether sodium sulfate: 10.8%;
4, alkylphenol polyoxyethylene carboxylate salt: 5.9%;
5, bicarbonate of ammonia: 4.6%;
6, water is 59.4%.
The sand-flushing well-cleaning agent for oil well production method of embodiment 2 is identical with embodiment 1.Result of use: in the water of sending here at water tanker, add sand-flushing well-cleaning agent for oil well to obtain sand-flushing liquid, the concentration of sand-flushing well-cleaning agent for oil well in sand-flushing liquid is 0.8%.Utilize this sand-flushing liquid to carry out the sand-flushing construction, improve sand washing efficiency 70%.
Embodiment 3: sand-flushing well-cleaning agent for oil well, and each weight percentages of components is:
1, nonylphenol polyoxyethylene ether sulfate: 12.9%;
2, fatty monoethanol amide polyoxyethylene ether sulfate: 6.7%;
3, alkylphenol-polyethenoxy (10) ether sodium sulfate: 10.7%;
4, alkylphenol polyoxyethylene carboxylate salt: 5.8%;
5, bicarbonate of ammonia: 4.7%;
6, water is 59.2%.
The sand-flushing well-cleaning agent for oil well production method of embodiment 3 is identical with embodiment 1.Result of use: the well around well site is stamped in next water and is added sand-flushing well-cleaning agent for oil well to obtain sand-flushing liquid, and the concentration of sand-flushing well-cleaning agent for oil well in sand-flushing liquid is 0.7%.Utilize this sand-flushing liquid to carry out the sand-flushing construction, improve sand washing efficiency 63%.
Embodiment 4: sand-flushing well-cleaning agent for oil well, and each weight percentages of components is:
1, nonylphenol polyoxyethylene ether sulfate: 13.2%;
2, fatty monoethanol amide polyoxyethylene ether sulfate: 6.8%;
3, alkylphenol-polyethenoxy (10) ether sodium sulfate: 10.6%;
4, alkylphenol polyoxyethylene carboxylate salt: 5.7%;
5, bicarbonate of ammonia: 4.8%;
6, water is 58.9%.
The sand-flushing well-cleaning agent for oil well production method of embodiment 4 is identical with embodiment 1.Result of use: in water, add sand-flushing well-cleaning agent for oil well of the present invention to obtain sand-flushing liquid, the concentration of sand-flushing well-cleaning agent for oil well in sand-flushing liquid is 1.0%.Utilize this sand-flushing liquid to carry out the sand-flushing construction, improve sand washing efficiency 65%.
Embodiment 5: sand-flushing well-cleaning agent for oil well, and each weight percentages of components is:
1, nonylphenol polyoxyethylene ether sulfate: 13.5%;
2, fatty monoethanol amide polyoxyethylene ether sulfate: 6.9%;
3, alkylphenol-polyethenoxy (10) ether sodium sulfate: 10.5%;
4, alkylphenol polyoxyethylene carboxylate salt: 5.5%;
5, bicarbonate of ammonia: 4.9%;
6, water is 58.7%.
The sand-flushing well-cleaning agent for oil well production method of embodiment 5 is identical with embodiment 1.Result of use: in water, add sand-flushing well-cleaning agent for oil well of the present invention to obtain sand-flushing liquid, the concentration of sand-flushing well-cleaning agent for oil well in sand-flushing liquid is 0.8%.Utilize this sand-flushing liquid to carry out the sand-flushing construction, improve sand washing efficiency 70%.
Claims (2)
1. a sand-flushing well-cleaning agent for oil well, it is characterized in that: each weight percentages of components is:
Nonylphenol polyoxyethylene ether sulfate: 12.5～13.5%;
Fatty monoethanol amide polyoxyethylene ether sulfate: 6.5～7.0%;
Alkylphenol-polyethenoxy (10) ether sodium sulfate: 10.5～11.0%;
Alkylphenol polyoxyethylene carboxylate salt: 5.5～6.0%;
Bicarbonate of ammonia: 4.5～5.0%;
All the other are water.
2. sand-flushing well-cleaning agent for oil well according to claim 1, it is characterized in that: production method is: at first, nonylphenol polyoxyethylene ether sulfate, fatty monoethanol amide polyoxyethylene ether sulfate, alkylphenol-polyethenoxy (10) ether sodium sulfate, alkylphenol polyoxyethylene carboxylate salt, etc. four kinds of raw materials add by weight enamel reaction still, slowly be warmed up to 65～75 ℃; Secondly, under constantly stirring, first add and should add 10% of the water yield, continue stirring and within 60 minutes, stop heating, stir on cooling limit, limit, cooling and be stirred to normal temperature, then add bicarbonate of ammonia, the limit edged stirs, then add remaining water, stir 30 minutes, obtain sand-flushing well-cleaning agent for oil well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011104018693A CN102399545B (en) | 2011-12-06 | 2011-12-06 | Sand washing and well washing agent for oil well |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104018693A CN102399545B (en) | 2011-12-06 | 2011-12-06 | Sand washing and well washing agent for oil well |
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| CN102399545A CN102399545A (en) | 2012-04-04 |
| CN102399545B true CN102399545B (en) | 2013-12-04 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102703046B (en) * | 2012-06-13 | 2013-11-06 | 中国石油天然气股份有限公司 | Concentrated sand-carrying agent for under-pressure oil-gas well |
| CN103589412B (en) * | 2013-11-06 | 2017-10-17 | 长江大学 | A kind of shale gas develops oil base drilling fluid mud cake cleaning fluid |
| CN104910885B (en) * | 2015-04-21 | 2017-09-12 | 成都欧美克石油科技股份有限公司 | Anionic and nonionic composite highly effective flushing liquor and preparation method thereof |
| CN110846013A (en) * | 2019-11-26 | 2020-02-28 | 西安建筑科技大学 | Well cementation flushing fluid for oil-based drilling fluid and preparation and application methods thereof |
| CN111961457B (en) * | 2020-08-05 | 2022-05-24 | 德仕能源科技集团股份有限公司 | Oil displacement complexing agent for heavy oil reservoir and preparation method and application thereof |
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