CN103059829B - Nanometer emulsion type water control fracturing fluid for tight gas reservation well and preparation method thereof - Google Patents
Nanometer emulsion type water control fracturing fluid for tight gas reservation well and preparation method thereof Download PDFInfo
- Publication number
- CN103059829B CN103059829B CN201310030473.1A CN201310030473A CN103059829B CN 103059829 B CN103059829 B CN 103059829B CN 201310030473 A CN201310030473 A CN 201310030473A CN 103059829 B CN103059829 B CN 103059829B
- Authority
- CN
- China
- Prior art keywords
- silicon oil
- parts
- emulsion type
- water
- amido silicon
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Colloid Chemistry (AREA)
Abstract
The invention relates to a nanometer emulsion type water control fracturing fluid for a tight gas reservation well and a preparation method of the nanometer emulsion type water control fracturing fluid. The nanometer emulsion type water control fracturing fluid is prepared by 0.3-0.5 part of amino silicon oil nanometer emulsion and 100 parts of water by weight. The preparation method comprises the following steps of: adding an emulsifying agent and a low-molecule alcohol into the amino silicon oil; uniformly mixing the emulsifying agent, the low-molecule alcohol and the amino silicon oil; adding an organic acid and some water; continuously stirring, then adding an electrolyte and the rest water, stirring until the phase is homogeneous, and then obtaining amino silicon oil nanometer emulsion. The preparation process mentioned in the invention is simple, the process is easy to control, and the nanometer emulsion type water control fracturing fluid obtained has hydrophobicity, obvious water control effect, low viscosity, small grain size, low surface tension and stable performance, so the nanometer emulsion type water control fracturing fluid is suitable for water control fracturing improvement of a near-water or high-water content tight gas reservation well.
Description
Technical field
The present invention relates to a kind ofly for the moisture hypotonic tight gas reservoir gas well control water fracturing reform of height, relate in particular to a kind of tight gas reservoir nano emulsion type control water fracturing liquid and preparation method thereof.
Background technology
Hypotonic tight gas reservoir is not difficult to obtain industrial gas before carrying out the volume increase transformations such as pressure break, the man-made fracture that high moisture hypotonic tight gas wells pressure break forms easily causes gas well Water-Content Rise fast, can solve after tight gas reservoir gas well fracturing simultaneously Water-Content Rise fast with oil/gas well stimulation problem, this is the problem that domestic and international gas field worker generally wants solution.Along with the proportion of tight gas reservoir reserves in natural gas energy resource and day sharp increase, the exploitation of compact sandstone gas has become one of hot issue, and gas field worker has also strengthened the research dynamics to tight gas reservoir exploitation both at home and abroad for this reason.For tight gas wells, if can select a kind of fracturing liquid with control water function, can be when gas well be carried out to pressure break, the output water that control brings because of fracturing fracture, not only can improve gas well output, increase economic benefit, and can also avoid the follow-up environmental problem causing because of a large amount of output water and the technical barrier bringing.
Selecting control water fracturing liquid is efficiently that tight gas wells is implemented one of key issue of controlling water fracturing methods, and associated mechanisms is devoted to research and the application of tight gas reservoir control water fracturing technique always both at home and abroad.At present, mainly comprise: improved crosslinked polymer control water fracturing fluid system, the jelly system of meeting water viscosity reduction of take covers control water Fracturing Technology that sand is part propping agent etc. as fracturing liquid and the wax of take, CN101476452A(CN200910020940.6 for example) a kind of water-control fracturing yield increasing method for oil gas well is disclosed, when pressing crack construction, adopt the coated mode of stopping up of chemical degradation, at underground formation plugged zone, chemical reaction weight proportion is: 1000 parts, water, 20～40 parts of paraffin or Microcrystalline Waxes, 180～360 parts, English sand, 3～4 parts of viscosifying agents, 7～9 parts of linking agents, 0.29～6.6 part of additive.CN102120929A(CN201010609172.0) a kind of preparation method of gas-well water controlling agent is disclosed, comprise: a, anionic polyacrylamide, cationic polymers and XY type univalent metal salt cosolvent aqueous solution is even, be stirred to completely and dissolve, form polymkeric substance composite solution; Described anionic polyacrylamide molecular weight is 6,000,000 ~ 2,000 ten thousand; Molecular weight 3,000,000 ~ 9,000,000 of described cationic polymers; B, by the formed polymkeric substance composite solution of organic acid acetic, carbonate and step a according to (0.05 ~ 0.5): (0.5 ~ 1): 100 mass ratioes are composite, obtain gas-well water controlling agent.
Existing control water fracturing liquid host is mostly macromolecule polymkeric substance, tight gas reservoir reservoir properties is poor, pore scale is micro/nano level, and crosslinked polymer system or jelly system particle diameter is large, viscosity is large, thereby be not suitable for being used as tight gas reservoir control water fracturing liquid, otherwise not only can in fracturing process, cause injection pressure too high, and easily stop up gas channel and cause reservoir damage.
Summary of the invention
The shortcoming existing for prior art, the invention provides a kind of nano emulsion type control water fracturing liquid and preparation method thereof.For high moisture hypotonic tight gas reservoir gas well control water fracturing reform.
Technical solution of the present invention is as follows:
A nano emulsion type control water fracturing liquid by weight, is formulated by the water of 0.3 ~ 0.5 part of amido silicon oil nanoemulsions and 100 parts;
Wherein, the parts by weight of raw materials component of amido silicon oil nanoemulsions is as follows:
50 ~ 100 parts of amido silicon oils, 10 ~ 50 parts of emulsifying agents, 5 ~ 25 parts of assistant for emulsifying agent low mass molecule alcohols, assistant for emulsifying agent low molecular organic acids 0.2-1.5 part, 2 ~ 12 parts, ionogen, 100 ~ 400 parts, water;
Described amido silicon oil viscosity is 800 ~ 5000mPas, and ammonia value is 0.3 ~ 0.6; Amido silicon oil is selected from single-ended amido silicon oil, double ended type amido silicon oil, pendant type amido silicon oil or mixed type amido silicon oil;
Described emulsifying agent is the composite emulsifier of sodium lauryl sulphate (SDS), fatty alcohol-polyoxyethylene ether (AEO-9), Octylphenol polyoxyethylene ether (OP-10) or sorbester p17 and tween 80;
Described assistant for emulsifying agent low mass molecule alcohol is carbonatoms lower than 5 alcohol, and described assistant for emulsifying agent low molecular organic acids is carbonatoms lower than 4 low molecular organic acids;
Described ionogen is an alkali metal salt, is selected from sodium-chlor, Repone K or sodium sulfate etc.;
Emulsifying agent and low mass molecule alcohol are added in amido silicon oil, stir, add the water of low molecular organic acids and total amount 1/3-1/2, continue to stir, then add the water of ionogen and residual content, be stirred to homogeneous phase, obtain amido silicon oil nanoemulsions.
Preferred according to the present invention, described amido silicon oil is selected from methylamino silicone oil, methoxyl group amido silicon oil, hydroxyl amino silicone oil, N-β aminoethyl-γ-aminopropyl modified silicon oil, end aminopropyl modified silicon oil or side chain containing aminopropyl modified silicon oil.
Preferred according to the present invention, described low mass molecule alcohol is propyl alcohol, butanols, amylalcohol or ethylene glycol, further preferred propyl carbinol; Described low molecular organic acids is acetic acid or oxalic acid.
Preferred according to the present invention, described ionogen is sodium-chlor.
Preferred according to the present invention, optimal temperature prepared by described amido silicon oil nanoemulsions is 5 ~ 60 ℃, preferably preparation at normal temperatures.
Preferred according to the present invention, in described composite emulsifier, the composite weight ratio of sorbester p17 and tween 80 is 1 ~ 10:1 ~ 10.
According to the present invention, preferred, the parts by weight of raw materials component of amido silicon oil nanoemulsions is: 100 parts of amido silicon oils, 25 ~ 40 parts of emulsifying agents, 15 ~ 24 parts of assistant for emulsifying agent low mass molecule alcohols, assistant for emulsifying agent low molecular organic acids 0.7-1 part, 4 ~ 10 parts, ionogen, 150 ~ 250 parts, water.
According to the present invention, the of the fracturing fluid preparation method of a kind of nano emulsion type control water, step is as follows:
The preparation of a, amido silicon oil nanoemulsions
By proportioning, emulsifying agent and low mass molecule alcohol are added in amido silicon oil, stir 20 ~ 30min, make it to mix, then the water that adds low molecular organic acids and total amount 1/3-1/2, continues to stir 20 ~ 30min, then adds the water of ionogen and residual content, be stirred to homogeneous phase, obtain amido silicon oil nanoemulsions.
B, get 0.3 ~ 0.5 weight part amido silicon oil nanoemulsions and be added in 100 weight parts waters, obtain nano emulsion type control water fracturing liquid.
Preferred according to the present invention, described stirring, stirring velocity is 100 ~ 500r/min.Adopt the strong stirring rake of shearing.
Described amido silicon oil nanoemulsions preparation method is reverse emulsion process.
The nano emulsion type control water fracturing liquid particle diameter that the present invention prepares is less than 100nm, and size distribution is even, stable performance.
The of the fracturing fluid application of nano emulsion type control water that the present invention is prepared, is applicable to nearly water or high moisture tight gas reservoir gas well control water fracturing reform.
Compared with the prior art, tool of the present invention has the following advantages:
1, the nano emulsion type control water fracturing liquid that prepared by the present invention has hydrophobicity, is adsorbed on rock surface after entering stratum, can significantly reduce water phase permeability, and reduction amplitude reaches more than 50%; Very little on gas phase permeability impact, there is the characteristic that selectively changing oozes mutually, control water successful; Viscosity is little, easily injects, and is particularly useful for tight gas reservoir; Surface tension is low, can significantly reduce water blocking damage in fracturing process; Good with reservoir fluid compatibleness, shear stability, thermostability and salt-stable are good.
2, after the nanoemulsions dilution that prepared by the present invention, particle diameter is little, narrow distribution range (particle diameter is even), and preparation process is simple, and process is easy to control.
Accompanying drawing explanation
Fig. 1 is the nano emulsion type control water fracturing liquid electromicroscopic photograph of the embodiment of the present invention 1 preparation.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described, but the present invention's scope required for protection is not limited to the related scope of embodiment.
In embodiment, all raw materials are commercial product, wherein, amido silicon oil, ammonia value 0.3 ~ 0.6, Anhui Jin Nuote organosilicon company limited produces; Sorbester p17, tween 80, sodium lauryl sulphate (SDS), Octylphenol polyoxyethylene ether (OP-10), fatty alcohol-polyoxyethylene ether (AEO-9), chemical pure.Consumption in embodiment " part " is weight part.
Embodiment 1:
A, at room temperature, 20g sodium lauryl sulphate (SDS) and 11g propyl carbinol are joined in 50g amido silicon oil (ammonia value 0.6), putting into 250mL beaker mixes, 250r/min stirs 20min, then add 0.5g acetic acid and 50mL deionized water, continue to stir 30min, add 6gNaCl and 50mL deionized water, continue stir about 10min to homogeneous phase, obtain amido silicon oil nanoemulsions.
B, get 0.3 ~ 0.5 part of amido silicon oil nanoemulsions and be added in 100 parts of water, mix, obtain the liquid of homogeneous phase transparent blueing light, be nano emulsion type control water fracturing liquid.
Fig. 1 is the nano emulsion type control water fracturing liquid electromicroscopic photograph of the present embodiment 1 preparation, shows that particle size were is more even in figure, and particle diameter is between 20nm-30nm.
Embodiment 2:
A, at room temperature, 15g fatty alcohol-polyoxyethylene ether (AEO-9) and 12g propyl carbinol are joined in 50g amido silicon oil (ammonia value 0.3), putting into 250mL beaker mixes, 200r/min stirs 20min, then add 0.35g acetic acid and 50mL deionized water, continue to stir 30min, add 5gNaCl and 50mL deionized water, continue stir about 10min to homogeneous phase, obtain amido silicon oil nanoemulsions.
B, get 0.3 ~ 0.5 part of amido silicon oil nanoemulsions and be added in 100 parts of water, mix, obtain the liquid of homogeneous phase transparent blueing light, be nano emulsion type control water fracturing liquid.
Embodiment 3:
A, at room temperature, 15g Octylphenol polyoxyethylene ether (OP-10) and 12g propyl carbinol are joined in 50g amido silicon oil (ammonia value 0.3), put into 250mL beaker and mix, 150r/min stirs 25min, then adds 0.4g acetic acid and 50mL deionized water, continue to stir 30min, add 5gNaCl and 50mL deionized water, continue stir about 10min to homogeneous phase, obtain the thick liquid containing more white bubble, standing after bubble collapse, obtain amido silicon oil nanoemulsions.
B, get 0.3 ~ 0.5 part of amido silicon oil nanoemulsions and add in 100 parts of water, mix, obtain the liquid of homogeneous phase transparent blueing light, be nano emulsion type control water fracturing liquid.
Embodiment 4:
A, at room temperature, 12.5g sorbester p17 and composite emulsifying agent and the 9g propyl carbinol of tween 80 are joined in 50g amido silicon oil (ammonia value 0.3), the composite weight ratio of described sorbester p17 and tween 80 is 1:9, put into 250mL beaker mixing 300r/min and stir 20min, then add 0.5g acetic acid and 50mL deionized water, continue to stir 30min, add 5gNaCl and 50mL deionized water, stir about 10min is to homogeneous phase, can obtain the thick liquid containing more white bubble, standing after bubble collapse, obtain light blue translucent emulsion, be amido silicon oil nanoemulsions.
B, get 0.3 ~ 0.5 part of amido silicon oil nanoemulsions and be added in 100 parts of water, mix, obtain the liquid of homogeneous phase transparent blueing light, be nano emulsion type control water fracturing liquid.
Embodiment 5:
As described in Example 1, difference is that propyl carbinol is replaced with to the mixture that n-propyl alcohol and Pentyl alcohol weight ratio are 2:1.Obtain nano emulsion type control water fracturing liquid.
Embodiment 6:
As described in Example 1, difference is that sodium-chlor is replaced with to Repone K.Obtain nano emulsion type control water fracturing liquid.
Embodiment 7:
As described in Example 4, difference is that the composite weight ratio of sorbester p17 and tween 80 is 8:2, and other conditions are constant.Obtain nano emulsion type control water fracturing liquid.
One, the viscosity of product, particle diameter and other correlated performances are investigated, as following table 1.
The viscosity of table 1, embodiment 1-7 product, particle diameter and other correlated performances
Two, gas well control water experiment
Embodiment 1-7 products therefrom nano emulsion type control water fracturing liquid is for the effect of gas well control water, can be according to the static experimental arrangement that flows of the oil and gas industry standard SY/T5358-94 of People's Republic of China (PRC) sandstone formation rock core, test inject gas-well water controlling agent before and after reservoir rock hole air water permeability variation obtain, relevant data is as table 2:
Table 2
As can be seen from Table 2, after nano emulsion type control water fracturing liquid enters stratum, be adsorbed on after rock surface, can reduce by a relatively large margin water phase permeability, reduction amplitude reaches more than 55%; And less on gas phase permeability impact, fall is controlled in 5.0%, has good control water effect.
Claims (8)
1. a nano emulsion type control water fracturing liquid by weight, is formulated by the water of 0.3 ~ 0.5 part of amido silicon oil nanoemulsions and 100 parts;
Wherein, the parts by weight of raw materials component of amido silicon oil nanoemulsions is as follows:
50 ~ 100 parts of amido silicon oils, 10 ~ 50 parts of emulsifying agents, 5 ~ 25 parts of assistant for emulsifying agent low mass molecule alcohols, assistant for emulsifying agent low molecular organic acids 0.2-1.5 part, 2 ~ 7 parts, ionogen, 100 ~ 500 parts, water;
Described amido silicon oil viscosity is 800 ~ 5000mPas, and ammonia value is 0.3 ~ 0.6;
Described emulsifying agent is the composite emulsifier of sodium lauryl sulphate, fatty alcohol-polyoxyethylene ether, Octylphenol polyoxyethylene ether or sorbester p17 and tween 80; In described composite emulsifier, the composite weight ratio of sorbester p17 and tween 80 is 1 ~ 10:1 ~ 10;
Described assistant for emulsifying agent low mass molecule alcohol is carbonatoms lower than 5 alcohol, and described assistant for emulsifying agent low molecular organic acids is carbonatoms lower than 4 low molecular organic acids;
Described ionogen is an alkali metal salt, is selected from sodium-chlor, Repone K or sodium sulfate;
Emulsifying agent and low mass molecule alcohol are added in amido silicon oil, stir, add the water of low molecular organic acids and total amount 1/3-1/2, continue to stir, then add the water of ionogen and residual content, be stirred to homogeneous phase, obtain amido silicon oil nanoemulsions.
2. nano emulsion type control water fracturing liquid according to claim 1, it is characterized in that, described amido silicon oil is selected from methylamino silicone oil, methoxyl group amido silicon oil, hydroxyl amino silicone oil, N-β aminoethyl-γ-aminopropyl modified silicon oil, end aminopropyl modified silicon oil or side chain containing aminopropyl modified silicon oil.
3. nano emulsion type control water fracturing liquid according to claim 1, is characterized in that, described low mass molecule alcohol is propyl alcohol, butanols or ethylene glycol.
4. nano emulsion type control water fracturing liquid according to claim 1, is characterized in that, described low molecular organic acids is acetic acid or oxalic acid.
5. nano emulsion type control water fracturing liquid according to claim 1, it is characterized in that, the parts by weight of raw materials component of amido silicon oil nanoemulsions is as follows: 100 parts of amido silicon oils, 25 ~ 40 parts of emulsifying agents, 15 ~ 24 parts of assistant for emulsifying agent low mass molecule alcohols, assistant for emulsifying agent low molecular organic acids 0.7-1 part, 4 ~ 10 parts, ionogen, 150 ~ 250 parts, water.
6. the of the fracturing fluid preparation method of nano emulsion type control water described in claim 1-5 any one, step is as follows:
A, by proportioning, emulsifying agent and low mass molecule alcohol are added in amido silicon oil, stir 20 ~ 30min, make it to mix, then the water that adds low molecular organic acids and total amount 1/3-1/2, continues to stir 20 ~ 30min, then adds the water of ionogen and residual content, be stirred to homogeneous phase, obtain amido silicon oil nanoemulsions;
B, get 0.3 ~ 0.5 weight part amido silicon oil nanoemulsions and add in 100 weight parts waters, obtain nano emulsion type control water fracturing liquid.
7. the of the fracturing fluid preparation method of nano emulsion type control water according to claim 6, is characterized in that, described stirring, and stirring velocity is 100 ~ 500r/min.
8. the of the fracturing fluid application of nano emulsion type control water described in claim 1-5 any one, for nearly water or high moisture tight gas reservoir gas well control water fracturing reform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310030473.1A CN103059829B (en) | 2013-01-25 | 2013-01-25 | Nanometer emulsion type water control fracturing fluid for tight gas reservation well and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310030473.1A CN103059829B (en) | 2013-01-25 | 2013-01-25 | Nanometer emulsion type water control fracturing fluid for tight gas reservation well and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103059829A CN103059829A (en) | 2013-04-24 |
| CN103059829B true CN103059829B (en) | 2014-08-20 |
Family
ID=48102738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310030473.1A Active CN103059829B (en) | 2013-01-25 | 2013-01-25 | Nanometer emulsion type water control fracturing fluid for tight gas reservation well and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103059829B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104789205A (en) * | 2014-01-20 | 2015-07-22 | 中国石油天然气股份有限公司 | Nanometer microemulsion cleanup additive |
| CA3039750C (en) * | 2016-11-21 | 2022-05-17 | Multi-Chem Group, Llc | Nanoemulsions for use in subterranean fracturing treatments |
| CN107880868B (en) * | 2017-11-08 | 2018-08-28 | 成都劳恩普斯科技有限公司 | A kind of pressure break control water nanoemulsions and preparation method thereof |
| CN108561113B (en) * | 2018-03-29 | 2020-08-21 | 北京斯迪莱铂油气技术有限公司 | Fracturing method for water-containing gas well |
| CN110173250B (en) * | 2019-06-14 | 2021-10-15 | 北京石油化工学院 | Fracturing method for modifying dry hot rock reservoir by using nano emulsion |
| CN110578506B (en) * | 2019-09-20 | 2020-07-31 | 中国石油天然气股份有限公司西南油气田分公司页岩气研究院 | Unconventional reservoir horizontal well fracture control volume fracturing well completion method |
| CN111236882B (en) * | 2020-01-13 | 2021-12-28 | 西南石油大学 | Capillary blocking completion fluid optimization method protected by dense gas layer |
| CN112796715B (en) * | 2021-04-09 | 2021-09-28 | 东营明德石油科技有限公司 | Ternary water-control gas production method suitable for loose sandstone gas reservoir |
| CN113717707A (en) * | 2021-05-25 | 2021-11-30 | 西安石油大学 | Environment-friendly deep nano-drainage agent for compact gas well and preparation method thereof |
| CN113717710A (en) * | 2021-10-08 | 2021-11-30 | 中国地质大学（北京） | Nano fracturing fluid for improving surface property of pore throat in reservoir and preparation method thereof |
| CN115651624B (en) * | 2022-10-31 | 2024-01-30 | 西南石油大学 | Surface modification system and method for reducing water invasion injury of water flooding gas reservoir |
| CN117231189A (en) * | 2023-09-14 | 2023-12-15 | 延安久丰能源科技有限公司 | Waterproof lock fracturing method based on nano emulsion modification |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3722595A (en) * | 1971-01-25 | 1973-03-27 | Exxon Production Research Co | Hydraulic fracturing method |
| US4549608A (en) * | 1984-07-12 | 1985-10-29 | Mobil Oil Corporation | Hydraulic fracturing method employing special sand control technique |
| CN1235627A (en) * | 1996-10-30 | 1999-11-17 | 汉克尔股份两合公司 | Method for facilitated waste disposal of working substances based on W/O invert emulsions |
| CN101130634A (en) * | 2007-08-08 | 2008-02-27 | 浙江大学 | High solid content amido silicone oil microemulsion and method of producing the same |
| CN101705082A (en) * | 2009-11-20 | 2010-05-12 | 中国石油大学(华东) | Formulated fracturing fluid of micro emulsion gel |
| CN102040997A (en) * | 2009-10-15 | 2011-05-04 | 华建伟 | Emulsified fracturing fluid |
-
2013
- 2013-01-25 CN CN201310030473.1A patent/CN103059829B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3722595A (en) * | 1971-01-25 | 1973-03-27 | Exxon Production Research Co | Hydraulic fracturing method |
| US4549608A (en) * | 1984-07-12 | 1985-10-29 | Mobil Oil Corporation | Hydraulic fracturing method employing special sand control technique |
| CN1235627A (en) * | 1996-10-30 | 1999-11-17 | 汉克尔股份两合公司 | Method for facilitated waste disposal of working substances based on W/O invert emulsions |
| CN101130634A (en) * | 2007-08-08 | 2008-02-27 | 浙江大学 | High solid content amido silicone oil microemulsion and method of producing the same |
| CN102040997A (en) * | 2009-10-15 | 2011-05-04 | 华建伟 | Emulsified fracturing fluid |
| CN101705082A (en) * | 2009-11-20 | 2010-05-12 | 中国石油大学(华东) | Formulated fracturing fluid of micro emulsion gel |
Non-Patent Citations (2)
| Title |
|---|
| 原青民.近期压裂酸化添加剂研究情况简介.《石油与天然气化工》.1992,第21卷(第01期), |
| 近期压裂酸化添加剂研究情况简介;原青民;《石油与天然气化工》;19920225;第21卷(第01期);14-21 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103059829A (en) | 2013-04-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103059829B (en) | Nanometer emulsion type water control fracturing fluid for tight gas reservation well and preparation method thereof | |
| CA2909329C (en) | High-temperature resistant nano composite mining additive for mining heavy oil and super heavy oil and preparation process thereof | |
| CN102329599B (en) | Novel selective water shutoff agent for oil well water shutoff | |
| CN102807849B (en) | Gel plugging agent for deep profile control of higher temperature oil reservoir and preparation method of gel plugging agent | |
| CN102485830A (en) | Profile control oil-displacement agent for core-shell type inorganic/organic polymer composite microballoon | |
| CN104403656A (en) | Novel zwitterionic slickwater fracturing fluid and preparation method thereof | |
| CN107686724B (en) | Ultralow-water-content carbon dioxide fracturing fluid and preparation method thereof | |
| CN107880868B (en) | A kind of pressure break control water nanoemulsions and preparation method thereof | |
| CN102031102A (en) | Preparation method and fracturing construction method of locally and continuously mixed clean fracturing fluid additive | |
| CN103525393B (en) | A kind of Instant gelling agent for acid fluid and preparation method thereof and application | |
| WO2014086068A1 (en) | Fracturing method of online continuous preparation based on liquid polymer | |
| CN102071919A (en) | Oil-gas well fiber assisted water control fracturing method | |
| US10202540B2 (en) | Zirconium gel particle combination flooding system and preparation method thereof | |
| CN102120929B (en) | Preparation method of gas-well water controlling agent | |
| CN106350053A (en) | Quick-dissolving type seawater-based high-temperature fracturing fluid | |
| CN106479477A (en) | A kind of encapsulating solids acid and its preparation and application | |
| CN106318356B (en) | A kind of water blockoff lotion and preparation method thereof | |
| CN113187459B (en) | Carbon dioxide acid fracturing method for ultra-deep well carbonate rock reservoir transformation | |
| CN101857801B (en) | Nanometer displacement agent and preparation method thereof | |
| CN101502771A (en) | Fluorocarbon gemini surfactant as well as preparation method and application thereof | |
| CN106010495A (en) | Decompression and augmented injection agent for water injection wells and preparation method thereof | |
| CN102757777B (en) | Inhibition water locking type high temperature resistant fracturing fluid for tight gas reservoir fracturing | |
| CN104140795A (en) | Composite plugging agent used for oil well water plugging and preparing method thereof | |
| CN105441048A (en) | Water-soluble comb-type polymer compression fracture temporary plugging diverting agent as well as preparation method and use method thereof | |
| CN103666440B (en) | A kind of acid solution instant dissolving viscosifier and its preparation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |