CO2 Channeling Sealing In Ultra-low-permeability Reservoirs

doi:10.11885/j.issn.1674-5086.2016.05.01.61

Abstract

Abstract:

To effectively seal preferential breakthrough channels and to increase the sweep volume and flooding efficiency of carbon dioxide, in-situ experimental models with different permeabilities were established, including a heterogeneous core model, a high permeability zone gas-channeling model, and a fracture model. CO₂ was measured at different stages of breakthrough time, channeling time, and degrees of recovery. On this basis, a high-strength, high-performance channeling sealing agent, ethylene diamine, containing formation water, starch, unsaturated monomer, a cross-linking agent, and a gel control agent was selected to carry out the carbon dioxide sealing control experiments in various permeability core models. The channeling sealing agent reacted with the carbon dioxide and formed carbamate. The experimental results showed that the carbon dioxide sweep volume was seriously affected by the gas channeling, and the gas channeling effect became stronger with increasing core heterogeneity. As the gas flooding effect weakened in the low-variation permeability conditions, the degree of recovery decreased with the increasing permeability. When the variation exceeded 100, the degree of recovery decreased rapidly and the gas channeling became severe. The low permeability reservoirs became difficult to reach, and as a result, the degree of recovery decreased. By using the high-strength, high-performance channeling sealing agent, ethylenediamine, the relatively high permeable channeling layers in the matrix were sealed in a stable manner and the carbon dioxide flooding sweep volume was expanded effectively. The in-situ degree of recovery increased by over 30%.

Key words: ultra-low permeability reservoir, heterogeneity, CO₂ flooding, gas channeling time, degree of recovery, channeling sealing agent

CLC Number:

TE348

ZHAO Xisen, SHI Lihua, WANG Weibo, BAI Yuan, TIAN Feng. CO₂ Channeling Sealing In Ultra-low-permeability Reservoirs[J]. 西南石油大学学报(自然科学版), 2017, 39(6): 131-139.

0
/ / Recommend

Add to citation manager EndNote|Ris|BibTeX

URL: http://journal15.magtechjournal.com/Jwk_xnzk/EN/10.11885/j.issn.1674-5086.2016.05.01.61

http://journal15.magtechjournal.com/Jwk_xnzk/EN/Y2017/V39/I6/131

References

[1] 杨大庆,尚庆华,江绍静,等. 渗透率对低渗油藏CO₂驱气窜的影响规律研究[J]. 西南石油大学学报(自然科学版),2014,36(4):138-140. doi:10.11885/j.issn.1674-5086.2014.04.17.06 YANG Daqing, SHANG Qinghua, JIANG Shaojing, et al. A study about influence law of permeability on gas channeling of CO₂ flooding under low permeability reservoir[J]. Journal of Southwest Petroleum University (Science & Technology Edition), 2014, 36(4):138-140. doi:10.11885/j.issn.1674-5086.2014.04.17.06
[2] 何应付,周锡生,李敏,等. 特低渗透油藏注CO₂驱油注入方式研究[J]. 石油天然气学报,2010,32(6):131-134. doi:10.3969/j.issn.1000-9752.2010.06.030 HE Yingfu, ZHOU Xisheng, LI Min, et al. Injection mode of CO₂ displacement in extra-low permeability reservoir[J]. Journal of Oil and Gas Technology, 2010, 32(6):131-134. doi:10.3969/j.issn.1000-9752.2010.06.030
[3] 彭松水. 胜利正理庄油田特低渗透油藏CO₂驱气窜规律研究[J]. 石油天然气学报,2013,35(3):147-149. doi:10.3969/j.issn.1000-9752.2013.03.033 PENG Songshui. Gas channeling rules of CO₂ flooding in extra-low permeability reservoir in Zhenglizhuang Oilfield[J]. Journal of Oil and Gas Technology, 2013, 35(3):147-149. doi:10.3969/j.issn.1000-9752.2013.03.033
[4] 张磊,赵凤兰,侯吉瑞,等. 特低渗透油藏CO₂非混相驱封窜实验研究[J]. 西安石油大学学报(自然科学版),2013,28(5):62-64. doi:10.3969/j.issn.1673064X.2013.05.011 ZHANG Lei, ZHAO Fenglan, HOU Jirui, et al. Experimental research of CO₂ channeling law in the immiscible CO₂ flooding of the extra-low permeability reservoirs[J]. Journal of Xi'an Shiyou University (Natural Science Edition), 2013, 28(5):62-64. doi:10.3969/j.issn.1673-064X.2013.05.011
[5] 李凡,罗跃,肖清燕,等. CO₂驱低渗非均质油藏抗高封窜剂的性能研究[J]. 油田化学,2016, 33(1):146-148. doi:10.19346/j.cnki.1000-4092.2016.01.032 LI Fan, LUO Yue, XIAO Qingyan, et al. Performance of CO₂ flooding plugging agent for low permeability and heterogeneous reservoirs with high temperature resistance[J]. Oilfield Chemistry, 2016, 33(1):146-148. doi:10.19346/j.cnki.1000-4092.2016.01.032
[6] 张立娟,岳湘安,杨志国,等. 非均质高温油藏非混相水气交替实验研究[J]. 断块油气田,2015,22(6):776-780. doi:10.6056/dkyqt201506021 ZHANG Lijuan, YUE Xiang'an, YANG Zhiguo, et al. Immiscible water-alternating-gas experiments in hightemperature heterogeneous reservoir[J]. Fault-Block Oil & Gas Field, 2015, 22(6):776-780. doi:10.6056/dkyqt201506021
[7] 杨红,余华贵,黄春霞,等. 低渗油藏水驱后CO₂驱潜力评价及注入参数优化[J]. 断块油气田,2015,22(2):240-244. doi:10.6056/dkyqt201502024 YANG Hong, YU Huagui, HUANG Chuanxia, et al. Potential evaluation and injection parameter optimization of CO₂ flooding after waterflooding in low permeability reservoir[J]. Fault-Block Oil & Gas Field, 2015, 22(2):240-244. doi:10.6056/dkyqt201502024
[8] 肖朴夫,杨正明,王学武,等. 室内注二氧化碳微观驱油机理研究[J]. 西南石油大学学报(自然科学版),2015,37(4):162-164. doi:10.11885/j.issn.16745086.2015.03.09.03 XIAO Pufu, YANG Zhengming, WANG Xuewu, et al. A laboratory study on the micro mechanism of oil displacement with CO₂ flooding[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2015, 37(4):162-164. doi:10.11885/j.issn.16745086.2015.03.09.03
[9] 刘淑霞. 特低渗透油藏CO₂驱室内实验研究[J]. 西南石油大学学报(自然科学版),2011,33(2):133-136. doi:10.3969/j.issn.1006-6535.2014.05.029 LIU Shuxia. Research on laboratory experiments of CO₂ drive in ultra-low permeability reservoir[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2011, 33(2):133-136. doi:10.3969/j.issn.10066535.2014.05.029
[10] 张英芝,杨正明,唐立根,等. 特低渗油藏注CO₂驱油微观机制[J]. 科技导报,2012,30(35):29-32. doi:10.3981/j.issn.1000-7857.2012.35.003 ZHANG Yingzhi, YANG Zhengming, TANG Ligen, et al. Microscopicmechanism of CO₂ flooding in extralow permeability reservoir[J]. Science & Technology Review, 2012, 30(35):29-32. doi:10.3981/j.issn.10007857.2012.35.003
[11] 王维波,师庆三,余华贵,等. 二氧化碳驱油注入方式优选实验[J]. 断块油气田,2015,22(4):497-500. doi:10.6056/dkyqt201504020 WANG Weibo, SHI Qingsan, YU Huagui, et al. Optimization experiment for carbon dioxide flooding injection mode[J]. Fault-Block Oil & Gas Field, 2015, 22(4):497-500. doi:10.6056/dkyqt201504020
[12] 张英芝,杨铁军,杨正明,等. 榆树林油田特低渗透扶杨油层CO₂驱油效果评价[J]. 科技导报,2015,33(5):52-55. doi:10.3981/j.issn.1000-7857.2015.05.007 ZHANG Yingzhi, YANG Tiejun, YANG Zhengming, et al. Evaluation of oil displacement by CO₂ at Fuyang extralow permeability layer in Yushulin Oilfield[J]. Science & Technology Review, 2015, 33(5):52-55. doi:10.3981/j.issn.1000-7857.2015.05.007
[13] 樊建明,张庆洲,霍明会,等. 超低渗透油藏注CO₂开发方式优选及室内实验研究[J]. 西安石油大学学报(自然科学版),2015,30(5):39-42. doi:10.3969/j.issn.1673-064X.2015.05.006 FAN Jianming, ZHANG Qingzhou, HUO Minghui, et al. Laboratory study on optimization of CO₂ injecion development ways of ultra-low permeability reservoirs[J]. Journal of Xi'an Shiyou University (Natural Science Edition), 2015, 30(5):39-42. doi:10.3969/j.issn.1673064X.2015.05.006
[14] 国殿斌,徐怀民. 深层高压低渗油藏CO₂驱室内实验研究——以中原油田胡96块为例[J]. 石油实验地质, 2014,36(1):103-105. doi:10.11781/sysydz201401102 GUO Dianbin, XU Huaimin. Laboratory experiments of CO₂ flooding in deep-buried high pressure lowpermeability reservoirs[J]. Petroleum Geology & Experiment, 2014, 36(1):103-105. doi:10.11781/sysydz201401102
[15] 王锐,倪红,吕成远,等. 低渗非均质油藏CO₂驱油特征研究[J]. 钻采工艺,2011,34(3):88-100. doi:10.3969/J.ISSN.1006-768X.2011.03.26 WANG Rui, NI Hong, LÜ Chengyuan, et al. Study on displacement characteristics in CO₂ flooding for low permeability heterogeneous reservoirs[J]. Drilling & Production Technology, 2011, 34(3):88-100. doi:10.3969/J.ISSN.1006-768X.2011.03.26
[16] 丁名臣,岳湘安,汪杰,等. 不同非均质性模型中注气方式对气驱油的影响[J]. 科学技术与工程,2013,13(27):8127-8128. doi:10.3969/j.issn.1671-1815.2013.27.036 DING Mingchen, YUE Xiang'an, WANG Jie, et al. The effects of injection patterns on gas flooding in different heterogeneity models[J]. Science Technology and Engineering, 2013, 13(27):8127-8128. doi:10.3969/j.issn.16711815.2013.27.036

CO₂ Channeling Sealing In Ultra-low-permeability Reservoirs

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments

[1]	ZHU Jinli. Well Location Optimization Technology of Strong Heterogeneity Gas Reservoir in Shuang 110 Well Block of Shenmu Gas Field [J]. 西南石油大学学报(自然科学版), 2020, 42(4): 83-94.
[2]	CHEN Zuhua, SUN Lei, YANG Zhengmao, ZHENG Yongwang, YU Xiaowei. Discussion on the Development Model of CO₂ Flooding in Low Permeability Reservoir in North Jiangsu [J]. 西南石油大学学报(自然科学版), 2020, 42(3): 97-106.
[3]	YU Jingwei, TANG Qunying, WU Jun, LU Ziyang, WEN Huaguo. Cyclic Sequences and Microscopic Heterogeneity of Reservoirs in the Qigu Formation of the Fudong Slope Area [J]. 西南石油大学学报(自然科学版), 2020, 42(2): 37-47.
[4]	ZHANG Deping, MA Feng, WU Yule, DONG Zehua. Optimization of Injection Technique of Corrosion Inhibitor in CO₂-flooding Oil Recovery [J]. 西南石油大学学报(自然科学版), 2020, 42(2): 103-109.
[5]	TANG Ke, JI Ping, WANG Xuehua, LUO Qiang. Channeling Characteristics and Profile Modification Measures for Polymer Flooding in Conglomerate Reservoirs in Xinjiang Oilfield [J]. 西南石油大学学报(自然科学版), 2019, 41(5): 105-111.
[6]	KANG Botao, YANG Li, YANG Baoquan, ZHANG Yingchun, YUAN Zhiwang. A Sophisticated Prediction Method for Water-cut Variation Patterns of Deep-water Turbidite Sandstone Oilfield [J]. 西南石油大学学报(自然科学版), 2019, 41(2): 97-108.
[7]	CAO Peng, DAI Chuanrui, ZHANG Chao, CHANG Shaoying, LIU Jiangli. Quantitative Characterization of Heterogeneity and Geological Modeling of the Yingmai X1 Dolomite Oil Reservoir [J]. 西南石油大学学报(自然科学版), 2019, 41(1): 18-32.
[8]	ZHANG Rui, LIU Zongbin, JIA Xiaofei, WANG Gongchang, TIAN Bo. Reservoir Plane Heterogeneity Characterization Based on Reservoir Architecture Research [J]. 西南石油大学学报(自然科学版), 2018, 40(5): 15-27.
[9]	QIAO Hui, JIA Ailin, JIA Chengye, WEI Yunsheng, YUAN He. Factors Controlling Heterogeneity in the High-quality Shale Reservoirs of the Changning Region [J]. 西南石油大学学报(自然科学版), 2018, 40(3): 23-33.
[10]	YU Qiannan, LIU Yikun, LIU Xue, YAO Di, YU Yang. An Experimental Study on the Porous-flow Characteristics of Heterogeneous Low-permeability Reservoirs [J]. 西南石油大学学报(自然科学版), 2018, 40(3): 105-114.
[11]	SHI Lihua, DANG Hailong, KANG Shengsong, WANG Weibo, WANG Qiang. Effects of Injection Pressure on Gas Channeling during CO₂ Flooding and a Study on Sealing of Cracks [J]. 西南石油大学学报(自然科学版), 2018, 40(1): 149-156.
[12]	WANG Jue. Sedimentary Characterization of Paleogene Period, Fan Delta Front, Liaohe Western Depression [J]. 西南石油大学学报(自然科学版), 2017, 39(4): 25-35.
[13]	TAO Zhen*, TIAN Changbing, XIONG Chunming, ZHAO Ruidong. Research on Well Patterns and Fracture Models for Fractured#br# Horizontal Well in Ultra-low Permeability Reservoir [J]. 西南石油大学学报(自然科学版), 2016, 38(4): 101-109.
[14]	WANG Wei1*, YANG Hui2, HUANG Chunxia1, JIANG Shaojing1, YUE Xiangan3. Researches on Improving Sweep Efficiency After Water Breakthrough in#br# Ultra-low Permeability Heterogeneous Reservoir [J]. 西南石油大学学报(自然科学版), 2016, 38(3): 107-113.
[15]	LI Haibo1，2，3*, GUO Hekun1，3, ZHOU Shangwen1, MENG Zhiqiang2，3, WANG Xuewu1，3. NMR Analysis of Movable Remaining Oil of Low Pemeability Reservoir [J]. 西南石油大学学报(自然科学版), 2016, 38(1): 119-127.