Research and Application of Targeted Acidizing Tech in Horizontal Well of Carbonate Reservoir

doi:10.11885/j.issn.1674-5086.2020.05.28.01

Abstract

Abstract: The horizontal well greatly increase the flow area of oil. It's advantages are much higher than that of vertical well. However, the serious heterogeneity of the reservoir brings great challenges to the effective acid placement in horizontal well. Based on the development situation of carbonate reservoirs in the Middle East, this paper systematically analyzes the main technical difficulties faced by acidization of horizontal well. According to the different development stages of the oilfield, the targeted acidizing technology for horizontal wells are proposed. The three-dimensional radial acidizing simulation model for horizontal wells is also deduced. According to the simulation, the influence of acid placement patterns on the acidizing effect are analyzed for both new and old horizontal wells. The research shows that the targeted acid placement pattern based on the drilling damage is better than the uniformed, physical-based and cone-shaped acid placement pattern for new horizontal well; under the same acidizing effect, the targeted acidizing can save at least 10% acid use; the production index analysis of 5 acidized new wells shows that the targeted acidizing can improve the production performance of those wells well. For the acidizing of old horizontal wells, partial acidizing can effectively balance the production profile of horizontal wells; for the partial low-permeability interval with reconstruction, 1.5 in. coiled tubing can be used for jet acidizing, which can penetrate deep into the reservoir through acid wormhole; the analysis of acidization in 7 old wells conducted by re-acidizing shows that targeted acidizing can greatly improve the production capacity for old horizontal wells.

Key words: carbonate, horizontal well, matrix acidizing, acid placement pattern, numerical simulation

CLC Number:

TE257

XUE Heng, HE Bing, JIANG Liping, CAO Xianping, DUAN Ce. Research and Application of Targeted Acidizing Tech in Horizontal Well of Carbonate Reservoir[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2022, 44(4): 121-128.

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URL: http://journal15.magtechjournal.com/Jwk_xnzk/EN/10.11885/j.issn.1674-5086.2020.05.28.01

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References

[1] 付宣, 李根生, 崔明月, 等.非均质碳酸盐岩油藏水平井分段酸化注酸量优化设计方法[J].油气地质与采收率, 2015, 22(6):112-115, 120. doi:10.13673/j.cnki.cn37-1359/te.2015.06.021 FU Xuan, LI Gensheng, CUI Mingyue, et al. Optimization design of acid fluid volume of staged acidizing in horizontal wells for heterogeneous carbonate reservoir[J]. Petroleum Geology and Recovery Efficiency, 2015, 22(6):112-115, 120. doi:10.13673/j.cnki.cn37-1359/te.2015.06.021
[2] 张合文, 崔明月, 鄢雪梅, 等.连续油管拖动均匀酸化分支水平井[J].深圳大学学报(理工版), 2016, 33(3):234-240. doi:10.3724/SP.J.1249.2016.03234 ZHANG Hewen, CUI Mingyue, YAN Xuemei, et al. Uniformly acidized lateral horizontal well with drawing coiled tubing[J]. Journal of Shenzhen University Science and Engineering, 2016, 33(3):234-240. doi:10.3724/SP.J.1249.2016.03234
[3] 周林波, 刘红磊, 解皓楠, 等.超深碳酸盐岩水平井水力喷射定点深度酸化压裂技术[J].特种油气藏, 2019, 26(3):158-162. doi:10.3969/j.issn.1006-6535.2019.03.030 ZHOU Linbo, LIU Honglei, XIE Haonan, et al. Fixed-point acid fracturing technology in the ultra-deep carbonate horizontal well[J]. Special Oil and Gas Reservoirs, 2019, 26(3):158-162. doi:10.3969/j.issn.1006-6535.2019.03.030
[4] 田守嶒, 李根生, 黄中伟, 等.连续油管水力喷射压裂技术[J].天然气工业, 2008, 28(8):61-63. doi:10.3787/j.issn.1000-0976.2008.08.017 TIAN Shouceng, LI Gensheng, HUANG Zhongwei, et al. Hydrojet-fracturing technology with coiled tubing[J]. Natural Gas Industry, 2008, 28(8):61-63. doi:10.3787/j.issn.1000-0976.2008.08.017
[5] 雒鹏飞, 徐鹏.合水油田暂堵酸化技术研究与应用[J].中国石油和化工标准与质量, 2019, 39(1):212-213. doi:10.3969/j.issn.1673-4076.2019.01.104 LUO Pengfei, XU Peng. Research and application of temporary plugging acidizing technology in Heshui Oilfield[J]. China Petroleum and Chemical Standard and Quality, 2019, 39(1):212-213. doi:10.3969/j.issn.1673-4076.2019.01.104
[6] 杨宝泉, 郭虎, 陈冲.水平井机械分段酸化技术研究与应用[J].大庆石油地质与开发, 2010, 29(3):114-117. doi:10.3969/J.ISSN.1000.3754.2010.03.024. YANG Baoquan, GUO Hu, CHEN Chong. Research and application of mechanical sectional acidizing technology for horizontal wells[J]. Petroleum Geology and Oilfield Development in Daqing, 2010, 29(3):114-117. doi:10.3969/J.ISSN.1000.3754.2010.03.024.
[7] 柳明, 杨鹏, 李德权, 等.完井方式对酸蚀蚓孔扩展的影响[J].西南石油大学学报(自然科学版), 2014, 36(6):117-122. doi:10.11885/j.issn.1674-5086.2012.07.25.01 LIU Ming, YANG Peng, LI Dequan, et al. Effect of well completion on acid etched wormhole propagation[J]. Journal of Southwest Petroleum University (Science & Technology Edition), 2014, 36(6):117-122. doi:10.11885/j.issn.1674-5086.2012.07.25.01
[8] 李小刚, 陈雨松, 王怡亭, 等.新型清洁自转向酸性能室内实验研究[J].应用化工, 2017, 46(1):25-28. doi:10.16581/j.cnki.issn1671-3206.2017.01.014 LI Xiaogang, CHEN Yusong, WANG Yiting, et al. Experimental researches on a new type of self-diverting acid system[J]. Applied Chemical Industry, 2017, 46(1):25-28. doi:10.16581/j.cnki.issn1671-3206.2017.01.014
[9] 乐宏, 刘飞, 薛衡, 等.四川盆地下寒武统龙王庙组气藏转向酸酸化模拟及其应用[J].天然气工业, 2017, 37(10):46-53. doi:10.3787/j.issn.1000-0976.2017.10.006 YUE Hong, LIU Fei, XUE Heng, et al. Numerical simulation and field application of diverting acid acidizing in the Lower Cambrian Longwangmiao Fm gas reservoirs in the Sichuan Basin[J]. Natural Gas Industry, 2017, 37(10):46-53. doi:10.3787/j.issn.1000-0976.2017.10.006
[10] 赵荣华, 刘文峥, 邹建敏, 等.复合暂堵转向酸化压裂技术在塔河油田的应用[J].特种油气藏, 2019, 26(6):146-150. doi:10.3969/j.issn.1006-6535.2019.06.027 ZHAO Ronghua, LIU Wenzheng, ZOU Jianmin, et al. Application of temporary plugging steering acid fracturing in Tahe Oilfield[J]. Special Oil and Gas Reservoirs, 2019, 26(6):146-150. doi:10.3969/j.issn.1006-6535.2019.06.027
[11] 钟森, 任山, 黄禹忠, 等.元坝超深水平井纤维暂堵酸化技术[J].特种油气藏, 2014, 21(2):138-140. doi:10.3969/j.issn.1006-6535.2014.02.032 ZHONG Sen, REN Shan, HUANG Yuzhong, et al. Fiber temporary blocking & acidizing technique in Yuanba ultra-deep horizontal wells[J]. Special Oil and Gas Reservoirs, 2014, 21(2):138-140. doi:10.3969/j.issn.1006-6535.2014.02.032
[12] 齐天俊, 韩春艳, 罗鹏, 等.可降解纤维转向技术在川东大斜度井及水平井中的应用[J].天然气工业, 2013, 33(8):58-63. doi:10.3787/j.issn.1000-0976.2013.08.011 QI Tianjun, HAN Chunyan, LUO Peng, et al. Application of diversion technology using degradable fiber to highly-deviated and horizontal wells in the Eastern Sichuan Basin[J]. Natural Gas Industry, 2013, 33(8):58-63. doi:10.3787/j.issn.1000-0976.2013.08.011
[13] HUANG T, ZHU D, HILL A D. Prediction of wormhole population density in carbonate matrix acidizing[C]. SPE 54723-MS, 1999. doi:10.2118/54723-MS
[14] 张合文.碳酸盐岩酸蚀蚓孔实验模拟及分形模型研究[D].北京:中国科学院大学, 2015. ZHANG Hewen. Experimental simulation and fractal model study of carbonate acidized wormhole[D]. Beijing:University of Chinese Academy of Sciences, 2015.
[15] BUDEK A, SZYMCZAK P. Network models of dissolution of porous media[J]. Physical Review E Statistical Nonlinear & Soft Matter Physics, 2012, 86(2):3419-3432. doi:10.1103/PhysRevE.86.056318
[16] PANGA M K R, ZIAUDDIN M, BALAKOTAIAH V. Two-scale continuum model for simulation of wormholes in carbonate acidization[J]. AIChE Journal, 2005, 51(12):3231-3248. doi:10.1002/aic.10574
[17] KANG Qinjun, LICHTNER P C, ZHANG Dongxiao. Lattice Boltzmann pore-scale model for multicomponent reactive transport in porous media[J]. Journal of Geophysical Research:Solid Earth, 2006, 111(B5):B05203. doi:10.1029/2005JB003951
[18] AMAEFULE J O, MASUO S T. Use of capillary-pressure data for rapid evaluation of formation damage or stimulation[J]. SPE Production Engineering, 1986, 1(2):131-142. doi:10.2118/12475-PA
[19] 薛衡, 黄祖熹, 赵立强, 等.碳酸盐岩水平井酸化模式及工艺参数优化研究[J].油气藏评价与开发, 2018, 8(3):66-72. doi:10.13809/j.cnki.cn32-1825/te.2018.03.014 XUE Heng, HUANG Zuxi, ZHAO Liqiang, et al. Optimization study on horizontal well acidizing modes and injection parameters in carbonate reservoir[J]. Reservoir Evaluation and Development, 2018, 8(3):66-72. doi:10.13809/j.cnki.cn32-1825/te.2018.03.014
[20] HOLLAND C. Experimental high velocity acid jetting in limestone carbonates[D]. Bizzell:Texas A & M University, 2014.