CN103160266B - Oil well additive for viscosity reduction, profile control and oil displacement, oil well combined treating agent and application thereof - Google Patents
Oil well additive for viscosity reduction, profile control and oil displacement, oil well combined treating agent and application thereof Download PDFInfo
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- CN103160266B CN103160266B CN201310065370.9A CN201310065370A CN103160266B CN 103160266 B CN103160266 B CN 103160266B CN 201310065370 A CN201310065370 A CN 201310065370A CN 103160266 B CN103160266 B CN 103160266B
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- oil well
- oil
- auxiliary agent
- clamp
- well combined
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- 239000003129 oil well Substances 0.000 title claims abstract description 56
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 36
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 21
- 239000000654 additive Substances 0.000 title abstract 3
- 230000000996 additive effect Effects 0.000 title abstract 3
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 51
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims abstract description 18
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 claims abstract description 18
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims abstract description 14
- -1 perfluorononenoxybenzene sodium Chemical compound 0.000 claims abstract description 14
- 229910052938 sodium sulfate Inorganic materials 0.000 claims abstract description 14
- 235000011152 sodium sulphate Nutrition 0.000 claims abstract description 14
- 235000019270 ammonium chloride Nutrition 0.000 claims abstract description 9
- 235000010288 sodium nitrite Nutrition 0.000 claims abstract description 9
- 239000003921 oil Substances 0.000 claims description 36
- 238000000034 method Methods 0.000 claims description 29
- RNMDNPCBIKJCQP-UHFFFAOYSA-N 5-nonyl-7-oxabicyclo[4.1.0]hepta-1,3,5-trien-2-ol Chemical compound C(CCCCCCCC)C1=C2C(=C(C=C1)O)O2 RNMDNPCBIKJCQP-UHFFFAOYSA-N 0.000 claims description 13
- 239000010734 process oil Substances 0.000 claims description 12
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- JRZJOMJEPLMPRA-UHFFFAOYSA-N 1-nonene Chemical class CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- MZSDGDXXBZSFTG-UHFFFAOYSA-M sodium;benzenesulfonate Chemical compound [Na+].[O-]S(=O)(=O)C1=CC=CC=C1 MZSDGDXXBZSFTG-UHFFFAOYSA-M 0.000 claims description 8
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000005187 foaming Methods 0.000 abstract description 3
- 229940051841 polyoxyethylene ether Drugs 0.000 abstract 2
- 229920000056 polyoxyethylene ether Polymers 0.000 abstract 2
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 abstract 1
- 150000002191 fatty alcohols Chemical class 0.000 abstract 1
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 abstract 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 11
- 239000006260 foam Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 239000000295 fuel oil Substances 0.000 description 4
- 239000013043 chemical agent Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000008092 positive effect Effects 0.000 description 3
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 230000002269 spontaneous effect Effects 0.000 description 2
- 239000004604 Blowing Agent Substances 0.000 description 1
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention relates to an oil well additive for viscosity reduction, profile control and oil displacement, an oil well combined treating agent and application thereof, wherein the oil well additive comprises the following components in percentage by weight: 1-15% of perfluorononenoxybenzene sodium sulfonate, 10-50% of alcohol, 1-2% of ammonium chloride, 1-2% of sodium nitrite and the balance of water. The invention also relates to an oil well combined treating agent, which comprises the auxiliary agent prepared from the components, and the oil well combined treating agent also comprises the auxiliary agent prepared from the following components in percentage by weight: 5-10% of nonylphenol polyoxyethylene ether and/or 10-15% of fatty alcohol polyoxyethylene ether sodium sulfate, and the balance of water. The assistant and the oil well combined treating agent can effectively reduce interfacial tension, have strong foaming capability and achieve the purposes of viscosity reduction, profile control and oil displacement.
Description
Technical field
The invention relates to a kind of viscosity reduction, profile control, the oil well auxiliary agent of the displacement of reservoir oil and oil well combined treatment and application thereof.
Background technology
Oil field is more for the method for steam-stimulated well viscosity reduction, profile control, the displacement of reservoir oil.But due to the impact of High Temperature High Pressure, the selectable kind of viscosity-depression agent, amendment, oil-displacing agent is limited.Utilize limited resources how to obtain in greatest benefit, do a lot of trial for many years.
" the many rounds of heavy crude reservoir handle up later stage suggestions for improvement technical study " China University Of Petroleum Beijing's Ph D dissertation in 2007, Li Jinfa." research and apply of novel foam transfer drive system in thermal recovery well " China University Of Petroleum Beijing's Master's thesis in 2011, Zhang Yong.In viscosity reduction, profile control, the displacement of reservoir oil, done a large amount of experiments, but its selected formula there is certain limitation, does not do concrete elaboration to construction technology.
Domestic patent and paper lay particular emphasis on synthesis and the theoretical investigation of product more, and the product of real high temperature resistance 300 DEG C is little, and how utilizing limited resources to carry out reasonable combination, realize the object of viscosity reduction, profile adjustment and oil displacement, is emphasis of the present invention.
Current domestic popular constructional method and chemical agent combination do not have dependency with the present invention.
Summary of the invention
One object of the present invention is the oil well auxiliary agent providing a kind of viscosity reduction, profile control, the displacement of reservoir oil.
Another object of the present invention is the oil well combined treatment providing described oil well auxiliary agent to prepare.
Another object of the present invention is to provide the method applying described oil well auxiliary agent process oil well.
Another object of the present invention is to provide the method applying described oil well combined treatment process oil well.
Another object of the present invention is to provide described oil well auxiliary agent and the application of oil well combined treatment in oil well viscosity reduction, profile control, displacement of reservoir oil process.
For reaching above-mentioned purpose, the present invention provide firstly the oil well auxiliary agent of a kind of viscosity reduction, profile control, the displacement of reservoir oil, described oil well auxiliary agent comprises following weight percent composition: perfluorinated nonene oxygen base benzene sulfonic acid sodium salt 1 ~ 15%, alcohol 10 ~ 50%, ammonium chloride 1 ~ 2% and Sodium Nitrite 1 ~ 2%, surplus is water.Wherein said per-cent is for 100% in perfluorinated nonene oxygen base benzene sulfonic acid sodium salt, alcohol, ammonium chloride, Sodium Nitrite and water gross weight.
Wherein perfluorinated nonene oxygen base benzene sulfonic acid sodium salt is the host of displacement of reservoir oil foaming, and alcohol is that ammonium chloride and Sodium Nitrite at high temperature can react generation non-condensable gas, are conducive to the formation of foam in order to make host and water dissolve each other.
According to oil well auxiliary agent of the present invention, wherein said alcohol can select the alcohol of this area routine to prepare oil well auxiliary agent of the present invention, and the present invention is in order to better with joined together by other compositions of auxiliary agent, wherein preferably adopt: one or more in methyl alcohol, ethanol and Virahol combine.
In order to improve the result of use of oil well auxiliary agent of the present invention further, invention further provides a kind of oil well combined treatment, after perfluorinated nonene oxygen base benzene sulfonic acid sodium salt, alcohol, ammonium chloride, Sodium Nitrite and water are mixed with the auxiliary agent of described oil well combined treatment by the present invention, the composition separately getting following weight percent is mixed with the assistant agent of described oil well combined treatment: polyoxyethylene nonylphenol ether 5 ~ 10% and/or polyoxyethylenated alcohol sodium sulfate 10 ~ 15%, surplus is water.
Wherein the per-cent of assistant agent is with the whole composition of assistant agent, i.e. polyoxyethylene nonylphenol ether and/or polyoxyethylenated alcohol sodium sulfate, and the gross weight of water is 100%.
Polyoxyethylene nonylphenol ether of the present invention and/or polyoxyethylenated alcohol sodium sulfate should be understood to, assistant agent can be made up of polyoxyethylene nonylphenol ether, polyoxyethylenated alcohol sodium sulfate and water, its weight ratio is polyoxyethylene nonylphenol ether 5 ~ 10%, polyoxyethylenated alcohol sodium sulfate 10 ~ 15%, and surplus is water;
Or be that assistant agent also can be made up of polyoxyethylene nonylphenol ether and water, its weight ratio is polyoxyethylene nonylphenol ether 5 ~ 10%, and surplus is water;
Again or be that assistant agent also can be made up of polyoxyethylenated alcohol sodium sulfate and water, its weight ratio is polyoxyethylenated alcohol sodium sulfate 10 ~ 15%, and surplus is water;
The wherein effect of assistant agent mainly viscosity reduction, profile control, the displacement of reservoir oil but not high temperature resistance, auxiliary agent at high temperature can generate non-condensable gas, reduces interfacial tension, isolation assistant agent and high-temperature steam, plays viscosity reduction, profile control, the displacement of reservoir oil equally.
Auxiliary agent of the present invention and assistant agent are independent preparation separately and independent packaging, but not the two are mixed.
According to oil well combined treatment of the present invention, wherein auxiliary agent and assistant agent weight ratio can carry out unrestricted choice according to construction condition, and the present invention is in order to strengthen construction effect further, are preferably 1: 1-5; Be for example 1: 2.
According to oil well combined treatment of the present invention, wherein said polyoxyethylene nonylphenol ether is this area common agents, those skilled in the art know the concrete polyoxyethylene nonylphenol ether being applicable to oil well auxiliary agent, the commercially available polyoxyethylene nonylphenol ether meeting related quality criterion all can be used for the preparation of oil well auxiliary agent of the present invention, such as NP10 ~ 15 of technical grade.
According to oil well combined treatment of the present invention, wherein said polyoxyethylenated alcohol sodium sulfate is this area common agents, those skilled in the art know the concrete polyoxyethylenated alcohol sodium sulfate being applicable to oil well auxiliary agent, such as the present invention can preferably adopt: RO (CH
2cH
2o) n-SO
3na, wherein n=2 or 3, R is the alkyl of carbonatoms 12 ~ 15.The present invention adopts conventional commercial polyoxyethylenated alcohol sodium sulfate namely can be applicable to the present invention and realize the object of the invention.
Next the invention provides the method for described oil well auxiliary agent process oil well, and described method comprises the steps:
Described auxiliary agent is clamp-oned stratum before steam treatment or with steam drop.Again, present invention also offers the method for described oil well combined treatment process oil well, described method comprises the steps, first assistant agent is clamp-oned stratum before steam, then auxiliary agent is clamp-oned stratum before steam or with steam drop.
Described oil well combined treatment is divided into auxiliary agent and assistant agent two independent sectors by the present invention, auxiliary agent is utilized assistant agent and high-temperature steam to be separated, assistant agent poor for high temperature resistant property is clamp-oned oil reservoir in advance, carry out isolating and replacing with the auxiliary agent of high temperature resistance, realize the viscosity reduction under high temperature and high pressure environment, profile control, displacement of reservoir oil integrated construction.Because of assistant agent not high temperature resistance, though and auxiliary agent high temperature resistance, but it is expensive, in the isolation of auxiliary agent with under replacing, the envrionment temperature of assistant agent is less than 140 DEG C, realize spontaneous non-condensable gas, viscosity reduction, profile control, displacement of reservoir oil integrated construction after mixing with auxiliary agent, reach the object of spontaneous non-condensable gas, viscosity reduction, profile control, the displacement of reservoir oil.
Assistant agent, in order to improve construction effect further, preferably first can also be clamp-oned stratum, then auxiliary agent is divided into two portions by the present invention further before steam treatment, and a part clamp-ons stratum before steam treatment, and another part clamp-ons stratum with steam drop; Before steam treatment, clamp-on the auxiliary agent on stratum and be 1: 1 ~ 5 with the auxiliary dosage ratio that steam drop clamp-ons stratum.
Auxiliary agent is divided into two portions to clamp-on by the present invention, and the part first clamp-oned is to assistant agent and steam be kept apart, and loses efficacy after avoiding assistant agent to contact with steam; The part clamp-oned with steam drop better and vapor mixing, can improve construction effect.
Wherein in the method for described oil well auxiliary agent process oil well and the method for described oil well combined treatment process oil well, described clamp-oning can with reference to operation during other auxiliary agent process oil wells of prior art, and the present invention is preferably above-mentioned, and that clamp-on employing is 0.5 ~ 2m
3/ h.
Wherein in the method for described oil well auxiliary agent process oil well and the method for described oil well combined treatment process oil well, auxiliary dosage also with reference to consumption during other auxiliary agent process oil wells of prior art, and can carry out Reasonable adjustment according to site operation, such as 1 ~ 4m
3/ m.
Present invention also offers the application of described oil well auxiliary agent in oil well viscosity reduction, profile control, displacement of reservoir oil process.
Invention further provides the application of described oil well combined treatment in oil well viscosity reduction, profile control, displacement of reservoir oil process.
Wherein preferred oil well noted earlier is thickened oil steam-stimulated well.
Described thickened oil steam-stimulated well is this area common terminology, by those skilled in the art are known usually.
In sum, the invention provides a kind of well-treating method.Well-treating method tool of the present invention has the following advantages:
(1) combination of high temperature resistance and not high temperature resistance chemical agent is realized by rational working procedure;
(2) the high temperature resistance solid blowing agent being used for other field (as flash arrestor) is dissolved each other by intermediate (alcohol) and water, realize pumping into;
(3) mixture effectively reduces interfacial tension, and foaming power is strong, reaches the object of viscosity reduction, profile control and/or the displacement of reservoir oil.
(4) add the chemical agent that automatically can generate non-condensable gas, make steam and non-condensable gas synergy, improve swept volume.
Embodiment
Describe the beneficial effect of implementation process of the present invention and generation below by way of specific embodiment in detail, be intended to help reader to understand essence of the present invention and feature better, not as can the restriction of practical range to this case.
Embodiment 1
Certain heavy oil wells, core intersection 25 meters, 5 layers.Viscosity of crude 7520mPa.s, because repeatedly handling up, effect is deteriorated by round.
During construction, first clamp-on assistant agent: the mixed solution of commercially available NP-15 (polyoxyethylene nonylphenol ether) 10%wt% and commercially available AES (polyoxyethylenated alcohol sodium sulfate) 15%wt% 60 tons, auxiliary agent (commercially available OBS (perfluorinated nonene oxygen base benzene sulfonic acid sodium salt) 5%wt%, alcohol (methyl alcohol) 50%wt% of intermediate isolating 10 tons of 10%wt%, ammonium chloride 1-2%, Sodium Nitrite 1-2%, all the other are water), then auxiliary agent 10 tons is clamp-oned with steam by steam injection drop, steam consumption 3000 side.Stewing well 3 days.After driving a well, the same period contrasts, and increase day by day oil 5 tons, and increase day by day liquid 18 side, positive effect.
The auxiliary agent of the present embodiment is detected:
(1) adopt air-flow method to measure, the half foam life period under 55 DEG C and normal pressure is 2470s, and the half foam life period under 120 DEG C and 1.4MPa pressure is 1904s;
(2) with brocade 45 blocks of viscous crude, adopt 60 DEG C time and revolve the method for dripping mensuration oil/water interfacial tension, obtain interfacial tension=3.09 × 10
-4mNm
-1;
(3) when 50 DEG C and water oil ratio are 7: 3 to brocade 45 pieces of reducing thick oil viscosity rates be 98%.
Embodiment 2
Certain heavy oil wells, core intersection 10.5. rice, 3 layers.Viscosity of crude 6570mPa.s, handled up and 14 to have taken turns, because repeatedly handling up, effect is deteriorated by round.
During construction, by described auxiliary formula (commercially available perfluorinated nonene oxygen base benzene sulfonic acid sodium salt 1%; Alcohol (ethanol) 10%; Ammonium chloride 1%; Sodium Nitrite 1-2%; Surplus is water, and described per-cent is weight percentage) 30 tons, clamp-on stratum with high temperature high voltage resistant drip pump with steam 2000 side.Stewing well 5 days.After driving a well, the same period contrasts, and increase day by day oil 2 tons, and increase day by day liquid 9 side, positive effect.
The auxiliary agent of the present embodiment is detected:
(1) adopt air-flow method to measure, the half foam life period under 55 DEG C and normal pressure is 2560s, and the half foam life period under 120 DEG C and 1.4MPa pressure is 2108s;
(2) with brocade 45 blocks of viscous crude, adopt 60 DEG C time and revolve the method for dripping mensuration oil/water interfacial tension, obtain interfacial tension=2.07 × 10
-4mNm
-1;
(3) when 50 DEG C and water oil ratio are 7: 3 to brocade 45 pieces of reducing thick oil viscosity rates be 95%.
Embodiment 3
Certain heavy oil wells, core intersection 15.5. rice, 4 layers.Viscosity of crude 4270mPa.s, handled up and 12 to have taken turns, because repeatedly handling up, effect is deteriorated by round.
During construction, first clamp-on the commercially available NP-15 of assistant agent (polyoxyethylene nonylphenol ether) 5%wt% and commercially available AES (polyoxyethylenated alcohol sodium sulfate)) mixed solution 60 tons of 10%wt%, then auxiliary agent 15 tons (commercially available OBS (perfluorinated nonene oxygen base benzene sulfonic acid sodium salt)) 5%wt%, alcohol (Virahol) 50%wt% is clamp-oned, ammonium chloride 2wt%, Sodium Nitrite 2wt%, all the other are water), then steam treatment 2500 side.Stewing well 3 days.After driving a well, the same period contrasts, and increase day by day oil 4 tons, and increase day by day liquid 15 side, positive effect.
Carry out different ingredients combination construction at heavy oil block at present and amount to 27 wells, accumulative increasing oil 4560 tons.
The auxiliary agent of the present embodiment is detected:
(1) adopt air-flow method to measure, the half foam life period under 55 DEG C and normal pressure is 2510s, and the half foam life period under 120 DEG C and 1.4MPa pressure is 1950s;
(2) with brocade 45 blocks of viscous crude, adopt 60 DEG C time and revolve the method for dripping mensuration oil/water interfacial tension, obtain interfacial tension=3.24 × 10
-4mNm
-1;
(3) when 50 DEG C and water oil ratio are 7: 3 to brocade 45 pieces of reducing thick oil viscosity rates be 96%.
Claims (7)
1. an oil well combined treatment, it is characterized in that, described oil well combined treatment comprises the auxiliary agent of following weight percent composition preparation: perfluorinated nonene oxygen base benzene sulfonic acid sodium salt 1 ~ 15%, alcohol 10 ~ 50%, ammonium chloride 1 ~ 2% and Sodium Nitrite 1 ~ 2%, and surplus is water; The assistant agent that the composition that described oil well combined treatment also comprises following weight percent is mixed with: polyoxyethylene nonylphenol ether 5 ~ 10% and/or polyoxyethylenated alcohol sodium sulfate 10 ~ 15%, surplus is water; Wherein the per-cent of auxiliary agent is in the gross weight of the whole composition of auxiliary agent for 100%, and the per-cent of assistant agent is for 100% in the gross weight of the whole composition of assistant agent.
2. oil well combined treatment according to claim 1, is characterized in that, described auxiliary agent and assistant agent weight ratio are 1:1 ~ 5.
3. oil well combined treatment according to claim 1, is characterized in that, described alcohol is one or more combinations in methyl alcohol, ethanol and Virahol.
4. application rights requires the method for oil well combined treatment process oil well described in 1 or 2, and it is characterized in that, described method comprises the steps: first assistant agent to be clamp-oned stratum before steam treatment, then auxiliary agent is clamp-oned stratum before steam treatment or with steam drop.
5. application rights requires the method for oil well combined treatment process oil well described in 1 or 2, it is characterized in that, first assistant agent is clamp-oned stratum before steam treatment, then auxiliary agent is divided into two portions, a part clamp-ons stratum before steam treatment, and another part clamp-ons stratum with steam drop; The auxiliary agent clamp-oning stratum before steam treatment and the auxiliary dosage clamp-oning stratum with steam drop are than being 1:1 ~ 5.
6. the application of the oil well combined treatment described in claim 1 or 2 in oil well viscosity reduction, profile control, displacement of reservoir oil process.
7. application according to claim 6, is characterized in that, described oil well is thickened oil steam-stimulated well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310065370.9A CN103160266B (en) | 2013-03-01 | 2013-03-01 | Oil well additive for viscosity reduction, profile control and oil displacement, oil well combined treating agent and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310065370.9A CN103160266B (en) | 2013-03-01 | 2013-03-01 | Oil well additive for viscosity reduction, profile control and oil displacement, oil well combined treating agent and application thereof |
Publications (2)
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|---|---|
| CN103160266A CN103160266A (en) | 2013-06-19 |
| CN103160266B true CN103160266B (en) | 2015-05-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021045797A1 (en) * | 2019-09-04 | 2021-03-11 | Saudi Arabian Oil Company | Methods for improving oil recovery within a subterranean formation |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103589410B (en) * | 2013-10-22 | 2016-05-11 | 中国石油天然气股份有限公司 | Chemical additive for temporary plugging and energy increasing of thickened oil steam huff-puff well and preparation method and application thereof |
| CN105507862B (en) * | 2015-12-04 | 2018-06-01 | 中国石油天然气股份有限公司 | Injection method of thickened oil underground modification viscosity-reducing nano catalyst |
| CN110467910B (en) * | 2018-05-11 | 2021-08-06 | 中国石油化工股份有限公司 | Oil displacement agent composition, preparation method thereof and viscosity-reducing huff and puff mining method of thick oil |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101323780A (en) * | 2008-08-06 | 2008-12-17 | 西安石油大学 | Low pervasion oilfield thermochemical cleanup additive and use thereof |
| CN102127414A (en) * | 2010-12-28 | 2011-07-20 | 中国石油大学(华东) | Microemulsion-type fracture acidizing cleanup additive, and preparation method and application thereof |
-
2013
- 2013-03-01 CN CN201310065370.9A patent/CN103160266B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101323780A (en) * | 2008-08-06 | 2008-12-17 | 西安石油大学 | Low pervasion oilfield thermochemical cleanup additive and use thereof |
| CN102127414A (en) * | 2010-12-28 | 2011-07-20 | 中国石油大学(华东) | Microemulsion-type fracture acidizing cleanup additive, and preparation method and application thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021045797A1 (en) * | 2019-09-04 | 2021-03-11 | Saudi Arabian Oil Company | Methods for improving oil recovery within a subterranean formation |
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| CN103160266A (en) | 2013-06-19 |
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