Application and Prospect of Acid Fracturing Technology with Microencapsulated Solid Acid

doi:10.3969/j.issn.1006-6535.2023.03.001

Abstract

Abstract: The conventional acid fracturing working fluid system has problems such as too fast acid-rock reaction and short effective distance, the microencapsulated solid acid is one of the effective means to solve this problem, and it is commonly used for deep acid fracturing of unconventional oil and gas reservoirs. This study describes the mechanism of action, structure and performance characteristics of microencapsulated solid acids, summarizes the research progress of acid fracturing technology with microencapsulated solid acid, and indicates the main research directions of acid fracturing technology with microencapsulated solid acid in the future. This study can provide technical support for the stimulation of ultra-high temperature carbonate reservoirs, and provide theoretical guidance for the research and application promotion of acid fracturing technology with microencapsulated solid acid.

Key words: microencapsulated solid acid, acid fracturing, capsule shell, acid core, emulsion method

CLC Number:

TE357.2

Yang Zhaozhong, Peng Qingdong, Wang Zhenpu, Li Xiaogang, Zhu Jingyi, Qin Yang. Application and Prospect of Acid Fracturing Technology with Microencapsulated Solid Acid[J]. Special Oil & Gas Reservoirs, 2023, 30(3): 1-8.

References

[1] 叶登胜,任勇,管彬,等.塔里木盆地异常高温高压井储层改造难点及对策[J].天然气工业,2009,29(3):77-79.
YE Dengsheng,REN Yong,GUAN Bin,et al.Difficulties and countermeasures for reservoir reconstruction of abnormal high temperature and pressure wells in Tarim Basin[J].Natural Gas Industry,2009,29(3):77-79.
[2] 蒋廷学,周珺,贾文峰,等.顺北油气田超深碳酸盐岩储层深穿透酸压技术[J].石油钻探技术,2019,47(3):140-147.
JIANG Tingxue,ZHOU Jun,JIA Wenfeng,et al.Deep penetration acid fracturing technology for ultra deep carbonate reservoirs in Shunbei oil and gas field[J].Petroleum Drilling Techniques,2019,47(3):140-147.
[3] 党录瑞,周长林,黄媚,等.考虑多重滤失效应的前置液酸压有效缝长模拟[J].天然气工业,2018,38(7):65-72.
DANG Lurui,ZHOU Changlin,HUANG Mei,et al.Simulation of effective crack length for acid fracturing of pre liquid considering multiple filtration effects[J].Natural Gas Industry,2018,38(7):65-72.
[4] 徐杏娟,刘音,付月永,等.高温碳酸盐岩酸化用胶凝酸体系研究[J].石油天然气学报,2014,36(11):197-200.
XU Xingjuan,LIU Yin,FU Yueyong,et al.Study on cementitious acid system for acidification of high temperature carbonate rocks[J].Journal of Oil and Gas Technology,2014,36(11):197-200.
[5] 李小刚,陈雨松,邓庄,等.碳酸盐岩基质酸化中酸蚀蚓孔模拟回顾与展望[J].新疆石油地质,2017,38(4):492-497.
LI Xiaogang,CHEN Yusong,DENG Zhuang,et al.Review and prospect of acid etching wormhole simulation in carbonate matrix acidification[J].Xinjiang Petroleum Geology,2017,38(4):492-497.
[6] 刘文丽,焦纬洲,刘有智,等.W/O/W型多重乳液的稳定性和应用研究进展[J].日用化学工业,2012,42(5):366-370.
LIU Wenli,JIAO Weizhou,LIU Youzhi,et al.Research progress on stability and application of W/O/W multiple lotion[J].China Surfactant Detergent & Cosmetics,2012,42(5):366-370.
[7] 李峻峰,邹琴,赖雪飞.壳聚糖微球药物释放机制研究进展[J].生物医学工程学杂志,2011,54(4):843-846.
LI Junfeng,ZOU Qin,LAI XUEFEI.Research progress on drug release mechanism of chitosan microspheres[J].Journal of Biomedical Engineering,2011,54(4):843-846.
[8] 李峰,赵海龙,梅玉芬.固体有机酸-潜伏酸酸化用于稠油井解堵[J].油田化学,1999,16(2):113-116.
LI Feng,ZHAO Hailong,MEI Yufen.Acidizing viscous oil producing wells with solid mixed organic/latent acids[J].Oilfield Chemistry,1999,16(2):113-116.
[9] AL-MUTAWA M.Field cases of a zero damaging stimulation and diversion fluid from the carbonate formations in North Kuwait[C].SPE80225,2005:62-68.
[10] BURGOS G,BIRCH G,BUIJSE M.Acid fracturing with encapsulated citric acid[C].SPE86484,2004,18-20.
[11] 张大年,苏建政,赵梦云,等.一种胶囊化固体酸及其制备和应用:CN106479477A[P].2017-03-08.
ZHANG Danian,SU Jianzheng,ZHAO Mengyun,et al.An encapsulated solid acid and its preparation and application:CN106479477A[P].2017-03-08.
[12] 曾斌,徐太平,周京伟,等.一种绿色全可溶高强度化学封隔器及其制备方法:CN109503762A[P].2019-03-22.
ZENG Bin,XU Taiping,ZHOU Jingwei,et al.A green all-soluble high-strength chemical packer and its preparation method:CN109503762A[P].2019-03-22.
[13] 蒋廷学,黄静,卞晓冰,等.一种深层页岩气微胶囊包裹固体酸体积压裂方法:CN109424351A[P].2019-03-05.
JIANG Tingxue,HUANG Jing,BIAN Xiaobing,et al.A microencapsulated solid acid volumetric fracturing method for deep shale gas:CN109424351A[P].2019-03-05.
[14] 杨洲,徐东.一种油田用微胶囊包裹酸及其制备方法:CN107880869A[P].2018-04-06.
YANG Zhou,XU Dong.A microencapsulated encapsulated acid for oilfield and its preparation method:CN107880869A[P].2018-04-06.
[15] 朱永杰,赵亚睿,窦姝凡,等.具有增强力学性能的助破胶微胶囊的制备与性能评价[J].油田化学,2021,38(3):417-421.
ZHU Yongjie,ZHAO Yarui,DOU Shufan,et al.Preparation and performance evaluation of auxiliary gel breaking microcapsule with enhanced mechanical property[J].Oilfield Chemistry,2021,38(3):417-421.
[16] 薛世杰,陈明慧,孙力,等.一种可控释放固体酸材料及其制备方法和应用:CN112795375A[P].2021-05-14.
XUE Shijie,CHEN Minghui,SUN Li,et al.A controlled release solid acid material and its preparation method and application:CN112795375A[P].2021-05-14.
[17] 安娜,罗攀登,李永寿,等.碳酸盐岩储层深度酸压用固体颗粒酸的研制[J].石油钻探技术,2020,48(2):93-97.
AN Na,LUO Pandeng,LI Yongshou,et al.Development of solid granular acid for the deep acid-fracturing of carbonate reservoirs[J].Petroleum Drilling Techniques,2020,48(2):93-97.
[18] BLAUCH M E,CHENG A,RISPLER K,et al.Novel carbonate well production enhancement application for encapsulated acid technology:first-use case history[C].SPE84131,2003:15-18.
[19] BLAUCH M E,FUNKHOUSER G.Encapsulated acid improves fracture results[J].Offshore,2002,62(7):60-60.
[20] NASR-EL-DIN H A,AL-ZAHRANI A A,GARZON F O,et al.Acid fracturing of gas wells by use of an acid precursor in the form of solid beads:lessons learned from first field application[J].SPE Production & Operations,2009,24(2):320-335.
[21] NASR-EL-DIN H A,AL-ZAHRANI A A,STILL J,et al.Laboratory evaluation of an innovative system for fracture stimulation of high-temperature carbonate reservoirs[C].SPE106054,2007:25-28.
[22] SILIN M A,MAGADOVA L A,DAVLETSHINA L F,et al.Particularities of sulfamic acid properties increasing the effectiveness of acid treatments[J].Oil Industry Journal,2021(1):44-47.
[23] 左明明.可控制释放过硫酸铵微胶囊的制备与性能研究[D].扬州:扬州大学,2015.
ZUO Mingming.Preparation and properties study of controlled release ammonium persulfate microcapsules[D].Yangzhou:Yangzhou University,2015.
[24] JOHNSON L M,SHEPHERD S D,ROTHROCK G D,et al.Core-shell systems for delayed delivery of concentrated mineral acid[J].SPE Production & Operations,2016,31(4):351-361.
[25] 刘高峰.盐酸微胶囊的制备及性能研究[D].成都:西南石油大学,2019.
LIU Gaofeng.Preparation and performance study of hydrochloric acid microcapsules[D].Chengdu:Southwest Petroleum University,2019.
[26] ALIREZA A,SUJIT S D,DAVID A W.Controlling Release From pH-Responsive Microcapsules [J].Langmuir,2013,29(41):12697-12702.
[27] LUO Z F,ZHANG N L,ZHAO L Q,et al.A reservoir-damage-free encapsulated acid dually controlled by hydrogen ion concentration and temperature[J].RSC Advances,2019,9(58):33733-33746.
[28] LUO Z F,ZHANG N L,ZHAO L Q,et al.Innovative encapsulating acid with release dually controlled by the concentration of hydrogen ions and temperature[J].Energy Fuels,2019,33(6):4976-4985.
[29] 崔伟香,王春鹏.压裂用胶囊破胶剂在高压液体中的释放研究[J].油田化学,2016,33(4):619-622.
CUI Weixiang,WANG Chunpeng.Extrusion and release research of encapsulated gel breaker in fracturing fluid with high pressure[J].Oilfield Chemistry,2016,33(4):619-622.
[30] 杨强斌,李风.压裂液微胶囊材料的制备及应用[J].山东化工,2015,44(5):22-26.
YANG Qiangbin,LI Feng.Preparation and application of polymeric capsule dressing for gel breaker[J].Shandong Chemical Industry,2015,44(5):22-26.
[31] 寸锡宏,赵霞,王超,等.低渗透油藏清洁屏蔽暂堵体系评价[J].油田化学,2022,39(4):630-635.
CUN Xihong,ZHAO Xia,WANG Chao,et al.Evaluation of clean shielding temporary plugging system in low-permeability reservoir[J].Oilfield Chemistry,2022,39(4):630-635.
[32] 高定祥,许强,王若玙,等.微胶囊的制备及油田应用潜力展望[J].应用化工,2020,49(增刊2):251-257.
GAO Dingxiang,XU Qiang,WANG Ruoyu,et al.Preparation of microcapsules and prospect of oilfield application potential[J].Applied Chemical Industry,2020,49(S2):251-257.
[33] 李洪广,闫军,杜仕国,等.W/O/W复乳体系制备聚合物微胶囊的影响因素分析[J].化工新型材料,2012,40(9):78-80.
LI Hongguang,YAN Jun,DU Shiguo,et al.Analysis of influencing factors on preparation of polymer microcapsules by W/O/W multiple emulsion system[J].New Chemical Materials,2012,40(9):78-80.
[34] 张爱黎,王若瑜,卢招弟.W/O/W复相乳液相分离法CoCl₂/PMMA微胶囊制备研究[J].沈阳理工大学学报,2016,35(1):85-88,92.
ZHANG Aili,WANG Ruoyu,LU Zhaodi.The research on preparation of CoCl₂/PMMA microcapsule by W/O/W internal phase separation from diphase[J].Journal of Shenyang Ligong University,2016,35(1):85-88,92.
[35] 曹梅,管萍,胡小玲,等.W/O/W复乳溶剂蒸发法制备微胶囊的影响因素及研究新进展[J].化学与生物工程,2009,26(9):1-6,10.
CAO Mei,GUAN Ping,HU Xiaoling,et al.The research progress and influential factors on preparation of microcapsules by W/O/W multiple emulsion-solvent evaporation method[J].Chemistry Bioengineering,2009,26(9):1-6,10.
[36] 刘志挺,吕竹芬,陈燕忠.溶剂蒸发法在微球制备中的应用及研究进展[J].广东药学院学报,2007,23(5):596-600.
LIU Zhiting,LYU Zhufen,CHEN Yanzhong.Application and research progress of solvent evaporation method in microsphere preparation[J].Journal of Guangdong Pharmaceutical University,2007,23(5):596-600.
[37] ZUO M M,ZHANG L,YUAN X,et al.A facile strategy to improve the encapsulation efficiency of polymer microcapsules containing water-soluble salt cores[J].Journal of Applied Polymer Science,2017,134(44):45294.
[38] ZUO M M,LIU T,HAN J.A novel method to prepare water-soluble core microcapsules with controlled burst release[J].Polymer Chemistry,2014,5(20):6060-6067.
[39] 李博鑫,杨隽阁,尹德忠,等.单分散聚合物微球稳定Pickering乳液法制备大粒径微胶囊相变材料[J].高等学校化学学报,2020,41(9):2085-2089.
LI Boxin,YANG Junge,YIN Dezhong,et al.Preparation of large-sized microencapsulated phase change materials through Pickering emulsion stabilized by monodisperse polymer microspheres[J].Chemical Journal of Chinese Universities,2020,41(9):2085-2089.
[40] 徐朝阳,余红伟,翟纬坤,等.W/O型微乳液稳定性实验及PAM水溶液微胶囊制备[J].应用化工,2020,49(12):3021-3025.
XU Chaoyang,YU Hongwei,ZHAI Weikun,et al.Stability test of W/O microemulsion and preparation of PAM aqueous microcapsule[J].Applied Chemical Industry,2020,49(12):3021-3025.