WO2015067085A1 - 一种酸压用缓速低摩阻酸液体系 - Google Patents
一种酸压用缓速低摩阻酸液体系 Download PDFInfo
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- WO2015067085A1 WO2015067085A1 PCT/CN2014/084505 CN2014084505W WO2015067085A1 WO 2015067085 A1 WO2015067085 A1 WO 2015067085A1 CN 2014084505 W CN2014084505 W CN 2014084505W WO 2015067085 A1 WO2015067085 A1 WO 2015067085A1
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- acid
- parts
- friction
- liquid system
- thickened
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- 239000002253 acid Substances 0.000 title claims abstract description 133
- 239000007788 liquid Substances 0.000 title claims abstract description 19
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 28
- 239000003995 emulsifying agent Substances 0.000 claims description 7
- 239000000654 additive Substances 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 239000003381 stabilizer Substances 0.000 claims description 6
- 239000002562 thickening agent Substances 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 230000001804 emulsifying effect Effects 0.000 claims 2
- 230000008719 thickening Effects 0.000 claims 2
- 238000005530 etching Methods 0.000 claims 1
- 230000000977 initiatory effect Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 10
- 239000011435 rock Substances 0.000 description 9
- 230000007797 corrosion Effects 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- 230000000979 retarding effect Effects 0.000 description 6
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 5
- 230000000996 additive effect Effects 0.000 description 5
- 239000003112 inhibitor Substances 0.000 description 5
- -1 iron ion Chemical class 0.000 description 5
- 230000036632 reaction speed Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 4
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 3
- 239000002283 diesel fuel Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- MTJGVAJYTOXFJH-UHFFFAOYSA-N 3-aminonaphthalene-1,5-disulfonic acid Chemical compound C1=CC=C(S(O)(=O)=O)C2=CC(N)=CC(S(O)(=O)=O)=C21 MTJGVAJYTOXFJH-UHFFFAOYSA-N 0.000 description 1
- HLLSOEKIMZEGFV-UHFFFAOYSA-N 4-(dibutylsulfamoyl)benzoic acid Chemical compound CCCCN(CCCC)S(=O)(=O)C1=CC=C(C(O)=O)C=C1 HLLSOEKIMZEGFV-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 239000013051 drainage agent Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003349 gelling agent Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/62—Compositions for forming crevices or fractures
- C09K8/72—Eroding chemicals, e.g. acids
- C09K8/74—Eroding chemicals, e.g. acids combined with additives added for specific purposes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/62—Compositions for forming crevices or fractures
- C09K8/72—Eroding chemicals, e.g. acids
- C09K8/74—Eroding chemicals, e.g. acids combined with additives added for specific purposes
- C09K8/76—Eroding chemicals, e.g. acids combined with additives added for specific purposes for preventing or reducing fluid loss
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/32—Anticorrosion additives
Definitions
- the invention relates to the technical field of acid fracturing reforming, in particular to a slow-speed low friction acid liquid system for acid pressure. Background technique
- the acid pressure modification of carbonate high temperature reservoirs has the problem that the acid rock reaction speed is too fast, it is impossible to form long acid corrosion cracks, and deep acid pressure cannot be realized.
- Experts and scholars at home and abroad have done a lot of research work to solve the deep acid pressure reformation of carbonate high temperature deep wells, and proposed acid systems such as thickened acid (gelling acid), foaming acid and emulsified acid.
- Ordinary thickened acid (gelling acid) reduces the acid rock reaction speed by adjusting the acid viscosity, but the temperature and shear resistance of this type of system is poor, and the liquid is not easy to return after breaking the gel; the foaming acid has low fluid loss.
- Emulsified acid is often used as diesel or crude oil.
- the external phase of emulsified acid, the internal phase is generally hydrochloric acid or earth acid, which has the disadvantage of high friction (20% higher than the friction of ordinary thickened acid), and the use of diesel has safety hazards on site construction, and also limits the emulsified acid. Promotional application. Summary of the invention
- the present invention proposes a retarding low friction acid solution system for acid pressure.
- a slow-pressure low-friction acid liquid system for acid pressure which comprises 20-40 parts of emulsified acid and 60-80 parts of thickened acid, and the total volume of emulsified acid and thickened acid is 100. Share.
- the emulsified acid component is composed of 6 parts of diesel oil, 0.06 to 0.15 parts of emulsifier, 0.7 to 2.1 parts of acid multi-effect additive, and the balance is 31% hydrochloric acid, and the sum of volume of each component of the emulsified acid is 20 to 40. Share.
- the thickened acid component is 0.16 ⁇ 0.64 parts thickener, 0.8 ⁇ 0.6 parts of emulsifier, 2.4 ⁇ 3.6 parts of high temperature corrosion inhibitor, 0.8 ⁇ 0.6 parts of iron ion stabilizer, and the balance is 31% hydrochloric acid.
- the sum of the volume of each component of the thickened acid is 60 to 80 parts.
- the invention provides a retarding low friction acid solution system for acid pressure, which reduces the acid rock reaction speed, improves the fracture conductivity, and finally improves the single well oil and gas production principle, by combining the emulsified acid and the thickened acid, It has the dual advantages of emulsified acid low acid rock reaction speed and thickened acid low friction, which greatly reduces the requirement of on-site construction for output water horsepower.
- Example 1 A retarding low friction acid solution system for acid pressure is suitable for acid pressure reformation of carbonate reservoirs at 100 ° C and a depth of more than 2500 m.
- Example 2 The slow-speed low-friction acid solution system for acid pressure is suitable for acid pressure reformation of carbonate reservoirs with a depth of more than 3000 m at 120 °C.
- Example 3 The slow-speed low-friction acid solution system for acid pressure is suitable for acid-pressure reformation of carbonate reservoirs with a depth of more than 3,500 m at 140 °C.
- the emulsifier was purchased from China Binzhou Guangyou Chemical Co., Ltd.; the acid multi-effect additive was purchased from Beijing Shida Aode Technology Co., Ltd.; the thickening agent was purchased from Beijing Xitao Technology Development Co., Ltd.; The agent was purchased from Beijing Kemaishi Petroleum Technology Co., Ltd. in China; the high temperature corrosion inhibitor was purchased from China Qianzhou Qianshi Chemical Co., Ltd.; the iron ion stabilizer was purchased from China Binzhou Guangyou Chemical Co., Ltd.
- Example 2 9.2231 X 10- 7 1.1538 Ordinary thickened acid (20% hydrochloric acid) 9.8584X 10- 6 1.4979
- Example 3 4.6686x10-6 1.1463
- Table 1 can be seen that Example 1 2 3 has a conventional acid thick acid reaction rate low at 100 ° C 120 ° C 140 ° C, respectively, illustrating Example 1 2 3 have excellent acid rock reaction rate, which is conducive to the realization of long seams; an acid pressure test of the temperature and shear resistance of slow-speed low-friction acid liquid system test the rheological properties of acid system at different temperatures , the results are shown in Table 2
- Table 2 Temperature and shear resistance of acid retarded low friction acid solution system 170s - 1 ) Performance formula viscosity, time, min mPa s degree, °C 0 20 30 40 50 60 70 80 90 Example 1 100 55 35 30 26 23 22 19 15 12 Example 2 120 60 40 33 23 20 18 18 16 12 Example 3 140 75 50 36 22 20 19 18 15 10 Note:
- the experimental equipment is Grace M5600; the experimental starting temperature is room temperature The 30 °C heating rate is the standard heating rate of the instrument.
- Table 2 shows that the viscosity of the solution of Example 1 2 3 is low at room temperature (30 ° C), the friction of the acid system is low, and the pumping is easy in the field; at 100 ° C, 120 ° C, 140 ° C, The shear resistance is stable and excellent. After 90 minutes of shearing, the liquid has a viscosity of only about 10 mPa s, which means that the liquid can be broken without using a gelling agent, which is beneficial to the residual liquid returning after the acid pressure construction.
- the main performance characteristics of the slow-pressure low-friction acid solution for acid pressure proposed in the embodiments of the present invention are as follows: (1) The liquid friction is low, only 40% to 50% of the clean water, which is favorable for on-site pumping; (2) the high The retarding low friction acid solution system can withstand temperature 100 ° C, the highest temperature resistance is 140 ° C, the high temperature rheological property is stable, and the shear resistance is outstanding; ( 2 ) the liquid viscosity is lower than the conventional thickened acid, the liquid filter Loss of small, is conducive to the formation of long seams; (3) has a lower acid rock reaction rate than conventional thickened acid, excellent retarding performance, can react with crack wall rock to form uneven seam surface, can form a communication distance after the crack is closed The long-slot with high conductivity of the end reservoir; the acid liquid system has better retarding performance than the conventional thickened acid, and avoids the disadvantages of high frictional resistance of the conventional emulsified acid on-site construction. (4) Breaking the glue thoroughly to meet the construction
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
本发明公开了一种酸压用缓速低摩阻酸液体系，由20～40份乳化酸及60～80份稠化酸组成，乳化酸与稠化酸体积总和为100份。该酸压用缓速低摩阻酸液体系在常温强酸条件下具有较高的粘度、较小的滤失，利于实现造缝，具有良好的缓速能力、较低的摩阻及良好的助排能力，可用于实现扩大酸压处理半径、提高酸蚀裂缝导流能力。
Description
一种酸压用缓速低摩阻酸液体系 技术领域
本发明涉及酸化压裂改造技术领域，具体涉及一种酸压用缓速低摩阻酸液 体系。 背景技术
碳酸盐岩高温储层的酸压改造存在着酸岩反应速度过快，无法形成较长酸 蚀裂缝，无法实现深度酸压等难题。国内外专家学者为解决碳酸盐岩高温深井 深度酸压改造作了大量的研究工作，提出了稠化酸（胶凝酸）、 泡沬酸、 乳化 酸等酸液体系。普通稠化酸（胶凝酸）通过调节酸液粘度来降低酸岩反应速度， 但该类体系耐温耐剪切能力较差，且破胶后液体不易返排；泡沬酸具有滤失低、 摩阻小、 酸液量小的优点，但其仅适合 1500~2500m井深内的酸压施工，不适 合高温深井酸压，且对现场施工设备有特殊要求；乳化酸常使用柴油或原油作 为乳化酸外相，内相一般为盐酸或土酸，其存在着高摩阻（比普通稠化酸摩阻 高 20% )的缺点，且柴油的使用使现场施工存在安全隐患，也限制了乳化酸的 推广应用。 发明内容
鉴于上述问题，本发明提出了一种酸压用缓速低摩阻酸液体系 。
依据本发明的一个方面 ，提供了一种酸压用缓速低摩阻酸液体系 ， 由 20~40份乳化酸及 60~80份稠化酸组成，乳化酸与稠化酸体积总和为 100份。
进一步地，所述乳化酸组分由柴油 6份，乳化剂 0.06 ~ 0.15份，酸液多效 添加剂 0.7 ~ 2.1份，余量为 31 %盐酸，乳化酸各组分体积之和为 20~40份。
进一步地，所述稠化酸组分由稠化剂 0.16 ~ 0.64份、 乳化剂 0.8 ~ 0.6份、 高温缓蚀剂 2.4 ~ 3.6份、铁离子稳定剂 0.8 ~ 0.6份，余量为 31 %盐酸，稠化酸 各组分体积之和为 60~80份。
本发明提供的一种酸压用缓速低摩阻酸液体系，以降低酸岩反应速度，提 高裂缝导流能力 ，最终提高单井油气产量为原则 ，通过将乳化酸及稠化酸结合， 兼具乳化酸低酸岩反应速度、稠化酸低摩阻双重优点，从而大大降低了现场施 工对输出水马力的要求。
上述说明仅是本发明技术方案的概述，为了能够更清楚了解本发明的技术 手段，而可依照说明书的内容予以实施，并且为了让本发明的上述和其它目的、 特征和优点能够更明显易懂，以下特举本发明的具体实施方式。
具体实施方式
实施例 1:
将 6份柴油、 0.08份乳化剂、 0.7份酸液多效添加剂、 13.22份 31 %盐酸配 成乳化酸，将 0.2份稠化剂 ， 0.6份助排剂， 2.4份高温缓蚀剂 ， 0.6份铁离子稳 定剂 ，76.2份 31 %盐酸配成稠化酸。现场采用泵车同时将乳化酸与稠化酸按体 积比 20： 80的比例泵入高压管汇进行酸压施工。
实施例 1一种酸压用缓速低摩阻酸液体系适用于 100°C、 井深大于 2500米 的碳酸盐岩储层酸压改造。
实施例 2:
将 6份柴油、 0.12份乳化剂、 1.5份酸液多效添加剂、 12.38份 31 %盐酸配 成乳化酸，将 0.4份稠化剂 ， 0.7份助排剂， 3.0份高温缓蚀剂 ， 0.7份铁离子稳 定剂 ，75.2份 31 %盐酸配成稠化酸。现场采用泵车同时将乳化酸与稠化酸按体 积比 20： 80的比例泵入高压管汇进行酸压施工。
实施例 2—种酸压用缓速低摩阻酸液体系适用于 120°C、 井深大于 3000米 的碳酸盐岩储层酸压改造。
实施例 3:
将 6份柴油、 0.15份乳化剂、 2.1份酸液多效添加剂、 13.22份 31 %盐酸配 成乳化酸，将 0.6份稠化剂 ， 0.8份助排剂， 3.6份高温缓蚀剂 ， 0.8份铁离子稳 定剂 ，74.2份 31 %盐酸配成稠化酸。现场采用泵车同时将乳化酸与稠化酸按体 积比 20： 80的比例泵入高压管汇进行酸压施工。
实施例 3—种酸压用缓速低摩阻酸液体系适用于 140°C、 井深大于 3500米 的碳酸盐岩储层酸压改造。
上述实施例中 ，乳化剂购自中国滨州广友化工有限公司；酸液多效添加剂 购自中国北京石大奧德科技有限公司；稠化剂购自中国北京希涛技术开发有限 公司 ；助排剂购自中国北京科麦仕石油科技有限公司 ；高温缓蚀剂购自中国兖 州市钱氏化工有限公司；铁离子稳定剂购自中国滨州广友化工有限公司。
该酸压用缓速低摩阻酸液体系的性能优点及有益效果，从如下测试结果表 明。 试验中 ，测试了实施例 1、 2、 3的性能指标。
一、 酸岩反应速度性能评价
■
表 1酸岩反应动力学性能对比 温度，。 C 酸液 反应常数 反应级数
普通稠化酸（ 20%盐酸） 3.6952X 10-6 1.4060
100
实施例 1 6.8267X 10-7 1.1695 普通稠化酸（ 20%盐酸） 5.9046X 10-6 1.4045
120
实施例 2 9.2231 X 10-7 1.1538 普通稠化酸（ 20%盐酸） 9.8584X 10-6 1.4979
140
实施例 3 4.6686x10-6 1.1463 表 1可以看出实施例 1 2 3在分别在 100°C 120°C 140°C条件下均 具有常规普通稠化酸低的酸岩反应速率，说明实施例 1 2 3均具有优良的 酸岩反应速率，利于实现造长缝； 一种酸压用缓速低摩阻酸液体系耐温耐剪切性能 试验测试了酸液体系在不同温度下的流变性能，结果见表 2
表 2 —种酸压用缓速低摩阻酸液体系耐温耐剪切 170s-1 )性能 配方粘度 ， 时间 ， min mPa s 度， °C 0 20 30 40 50 60 70 80 90 实施例 1 100 55 35 30 26 23 22 19 15 12 实施例 2 120 60 40 33 23 20 18 18 16 12 实施例 3 140 75 50 36 22 20 19 18 15 10 注：实验设备为 Grace M5600；实验起始温度均为室温 30°C 升温速度均为仪器标准升温速度。 表 2可以看出实施例 1 2 3在室温（ 30°C )条件下粘度均较低，酸液 体系摩阻低，现场容易泵注；在 100°C 120°C 140°C高温条件下，耐剪切 性能稳定优良，剪切 90min后，液体仅有 10 mPa s左右的粘度，说明液体不 须使用破胶剂即可实现破胶，利于酸压施工后期残液返排。
本发明实施例提出的酸压用缓速低摩阻酸液体系主要性能特点如下：（ 1 ) 液体摩阻低，仅为清水的 40%~50% ,利于现场泵注；（ 2 )该高缓速低摩阻酸 液体系能抗温 100°C，最高耐温 140°C，高温流变性能稳定，耐剪切性能突出 ； ( 2 )具有较常规稠化酸低的液体粘度，液体滤失小，利于形成长缝；（ 3 )具 有较常规稠化酸更低的酸岩反应速度，缓速性能优良，能够与裂缝壁面岩石反 应形成凹凸不平的缝面，裂缝闭合后能够形成沟通远端储层的具有高导流能力 的长缝；酸液体系比常规稠化酸缓速性能优良，避免了常规乳化酸现场施工摩 阻高的弊端。 ( 4 )破胶彻底，满足施工要求。 ( 5 )该高缓速低摩阻酸液体系属 于非交联酸液体系，不需加入破胶剂，储层二次伤害小。
Claims
1、 一种酸压用缓速低摩阻酸液体系，其特征在于： 由 20~40份乳化酸及 60~80份稠化酸组成，乳化酸与稠化酸体积总和为 100份。
2、 根据权利要求 1所述酸压用缓速低摩阻酸液体系，其特征在于：所述 乳化酸组分由柴油 6份，乳化剂 0.06 ~ 0.15份 ,酸液多效添加剂 0.7 ~ 2.1份， 余量为 31 %盐酸组成，乳化酸各组分体积之和为 20~40份。
3、 根据权利要求 1所述酸压用缓速低摩阻酸液体系，其特征在于：所述 稠化酸组分由稠化剂 0.16 ~ 0.64份、助排剂 0.8 ~ 0.6份、 高温缓蚀剂 2.4 - 3.6 份、 铁离子稳定剂 0.8 ~ 0.6份，余量为 31 %盐酸组成，稠化酸各组分体积之和 为 60~80份。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310552852.7 | 2013-11-08 | ||
| CN201310552852.7A CN104629711A (zh) | 2013-11-08 | 2013-11-08 | 一种酸压用缓速低摩阻酸液体系 |
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| WO2015067085A1 true WO2015067085A1 (zh) | 2015-05-14 |
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| CN106520098A (zh) * | 2015-09-10 | 2017-03-22 | 中国石油化工股份有限公司 | 钻井用酸性解卡液及其制备方法 |
| CN107868660B (zh) * | 2016-09-23 | 2022-07-22 | 深圳市百勤石油技术有限公司 | 一种油气藏酸化用的乳化酸液及其制备方法 |
| CN108641700B (zh) * | 2018-05-18 | 2020-10-09 | 陕西省石油化工研究设计院 | 一种多效压裂助剂及其制备方法与应用 |
| CN110724514B (zh) * | 2018-07-17 | 2022-03-08 | 中国石油化工股份有限公司 | 一种纳米高温乳化胶凝酸及制备方法 |
| CN109135716A (zh) * | 2018-08-22 | 2019-01-04 | 中国石油天然气股份有限公司 | 一种稠化酸、混合酸液体系及降低乳化酸摩阻的方法 |
| CN111171802A (zh) * | 2018-11-13 | 2020-05-19 | 中国石油化工股份有限公司 | 一种酸液体系的制备方法 |
| CN111253928B (zh) * | 2018-11-30 | 2022-08-19 | 中国石油化工股份有限公司 | 一种分级缓速交联乳化酸及其制备方法 |
| CN115678523B (zh) * | 2021-07-30 | 2024-03-01 | 中国石油天然气股份有限公司 | 酸化解堵体系 |
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| CN1061033A (zh) * | 1990-10-30 | 1992-05-13 | 四川石油管理局天然气研究所 | 酸化地层用的胶凝酸 |
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| CN102250609B (zh) * | 2011-05-25 | 2013-06-26 | 中国石油集团川庆钻探工程有限公司 | 低摩阻加重酸压工作液 |
| US20130005617A1 (en) * | 2011-06-30 | 2013-01-03 | Diankui Fu | Self-diverting emulsified acid systems for high temperature well treatments and their use |
| CN102516976B (zh) * | 2011-11-11 | 2013-07-31 | 中国石油天然气集团公司 | 一种多组分有机交联酸液制备方法 |
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