Simultaneous CO2 Huff-n-Puff Test in Highly Sensitive Reservoirs in Upper Wuerhe Formation, Mahu Sag

doi:10.7657/XJPG20240313

Abstract

Abstract:

In order to explore the post-fracturing EOR technologies for efficient development of highly sensitive tight conglomerate oil reservoirs in horizontal wells in the Mahu sag, a simultaneous CO₂ huff-n-puff test was carried out in the Mahu 1 well block. The results show that simultaneous CO₂ huff-n-puff can enhance oil recovery of highly sensitive tight conglomerate reservoirs, and its oil displacement mechanisms mainly include extraction, miscibility, competitive adsorption, and expansive displacement. Fracture communication is the main cause of gas channeling. Through field regulation and control, synchronous soaking of well groups and gas channeling wells was achieved, ensuring the field implementation effect. Soaked by fracturing fluid, the clay minerals in the tested well group hydrate and expand, causing pore throat blockage, which affects CO₂ swept range and results in a low interim oil exchange ratio. The simultaneous CO₂ huff-n-puff test achieved favorable stimulation effects, with an interim oil increment of 3,983 tons and an oil exchange ratio of 0.36 in the tested well group. This test provides technical ideas and field experience for horizontal wells in enhancing oil recovery of highly sensitive tight conglomerate reservoirs after fracturing.

Key words: Mahu sag, upper Wuerhe formation, tight conglomerate, simultaneous CO₂ huff-n-puff, sensitivity, EOR

CLC Number:

TE341

SONG Ping, CUI Chenguang, ZHANG Jigang, LIU Kai, DENG Zhenlong, TAN Long, YU Xike. Simultaneous CO₂ Huff-n-Puff Test in Highly Sensitive Reservoirs in Upper Wuerhe Formation, Mahu Sag[J]. Xinjiang Petroleum Geology, 2024, 45(3): 355-361.

Figures/Tables 8

Fig. 1.

Table 1.

Table 2.

Fig. 2.

Fig. 3.

Fig. 4.

Fig. 5.

Fig. 6.

References 30

[1]	FRIEDLINGSTEIN P, O’SULLIVAN M, JONES M W, et al. Global carbon budget 2020[J]. Earth System Science Data, 2020, 12(4):3269-3340.
[2]	苏现波, 黄津, 王乾, 等. CO₂强化煤层气产出与其同步封存实验研究[J]. 煤田地质与勘探, 2023, 51(1):176-184.
	SU Xianbo, HUANG Jin, WANG Qian, et al. Experimental study on CO₂-enhanced coalbed methane production and its simultaneous storage[J]. Coal Geology & Exploration, 2023, 51(1):176-184.
[3]	赵小令, 肖晋宇, 侯金鸣, 等. 中国二氧化碳捕集利用和封存技术经济性与规模预测[J]. 石油勘探与开发, 2023, 50(3):657-668. doi: 10.11698/PED.20220793
	ZHAO Xiaoling, XIAO Jinyu, HOU Jinming, et al. Economic and scale prediction of CO₂ capture,utilization and storage technologies in China[J]. Petroleum Exploration and Development, 2023, 50(3):657-668.
[4]	姚艳斌, 孙晓晓, 万磊. 煤层CO₂地质封存的微观机理研究[J]. 煤田地质与勘探, 2023, 51(2):146-157.
	YAO Yanbin, SUN Xiaoxiao, WAN Lei. Micro-mechanism of geological sequestration of CO₂ in coal seam[J]. Coal Geology & Exploration, 2023, 51(2):146-157.
[5]	孟新. 中国CCUS-EOR项目经济效果及其提升手段研究[J]. 油气地质与采收率, 2023, 30(2):181-186.
	MENG Xin. Research on economic effect of China’s CCUS-EOR projects and its improvement methods[J]. Petroleum Geology and Recovery Efficiency, 2023, 30(2):181-186.
[6]	张凯, 陈掌星, 兰海帆, 等. 碳捕集、利用与封存技术的现状及前景[J]. 特种油气藏, 2023, 30(2):1-9. doi: 10.3969/j.issn.1006-6535.2023.02.001
	ZHANG Kai, CHEN Zhangxing, LAN Haifan, et al. Status and prospects of carbon capture,utilization and storage technology[J]. Special Oil & Gas Reservoirs, 2023, 30(2):1-9.
[7]	AKERMAN P, CAZZOLA P, CHRISTIANSEN E S. Reaching zero with renewables:Eliminating CO₂ emissions from industry and transport in line with the 1.5 ℃ climate goal[R]. Abu Dhabi: International Renewable Energy Agency, 2020.
[8]	刘世奇, 皇凡生, 杜瑞斌, 等. CO₂地质封存与利用示范工程进展及典型案例分析[J]. 煤田地质与勘探, 2023, 51(2):158-174.
	LIU Shiqi, HUANG Fansheng, DU Ruibin, et al. Progress and typical case analysis of demonstration projects of the geological sequestration and utilization of CO₂[J]. Coal Geology & Exploration, 2023, 51(2):158-174.
[9]	吕文玉, 吕超, 张文忠, 等. 木里地区煤系天然气水合物储层中CO₂封存试验研究[J]. 煤田地质与勘探, 2023, 51(6):40-49.
	LYU Wenyu, LYU Chao, ZHANG Wenzhong, et al. Experimental study on CO₂ storage in coal measure gas hydrates reservoirs in Muli coalfield[J]. Coal Geology & Exploration, 2023, 51(6):40-49.
[10]	王高峰, 秦积舜, 孙伟善. 碳捕集、利用与封存案例分析及产业发展建议[M]. 北京: 化学工业出版社, 2020.
	WANG Gaofeng, QIN Jishun, SUN Weishan. CCUS cases analysis and industrial development suggestions[M]. Beijing: Chemical Industry Press, 2020.
[11]	刘向斌, 李胜利, 韩重莲, 等. 大庆油田CO₂驱试验区注入井综合解堵技术[J]. 大庆石油地质与开发, 2022, 41(6):58-63.
	LIU Xiangbin, LI Shengli, HAN Zhonglian, et al. Comprehensive plugging removal technique for injection well in CO₂ flooding test area in Daqing oilfield[J]. Petroleum Geology & Oilfield Development in Daqing, 2022, 41(6):58-63.
[12]	张怿赫, 盛家平, 李情霞, 等. CO₂吞吐技术应用进展[J]. 特种油气藏, 2021, 28(6):1-10. doi: 10.3969/j.issn.1006-6535.2021.06.001
	ZHANG Yihe, SHENG Jiaping, LI Qingxia, et al. Advances in the application of CO₂ stimulation technology[J]. Special Oil & Gas Reservoirs, 2021, 28(6):1-10.
[13]	贾瑞轩, 孙灵辉, 苏致新, 等. 二氧化碳吞吐致密油藏的可动用性[J]. 断块油气田, 2020, 27(4):504-508.
	JIA Ruixuan, SUN Linghui, SU Zhixin, et al. Availability of CO₂ huff and puff in tight reservoir[J]. Fault-Block Oil & Gas Field, 2020, 27(4):504-508.
[14]	章星, 韩磊, 周栋华, 等. CO₂细管驱油实验混相动态特征表征方法[J]. 大庆石油地质与开发, 2018, 37(1):122-127.
	ZHANG Xing, HAN Lei, ZHOU Donghua, et al. Characterizing method of the dynamic characteristics of CO₂ slim-tube miscible oil flooding test[J]. Petroleum Geology & Oilfield Development in Daqing, 2018, 37(1):122-127.
[15]	王子强, 葛洪魁, 郭慧英, 等. 准噶尔盆地吉木萨尔页岩油不同温压CO₂吞吐下可动性实验研究[J]. 石油实验地质, 2022, 44(6):1092-1099.
	WANG Ziqiang, GE Hongkui, GUO Huiying, et al. Experimental study on the mobility of Junggar basin’s Jimsar shale oil by CO₂ huff and puff under different temperatures and pressures[J]. Petroleum Geology & Experiment, 2022, 44(6):1092-1099.
[16]	施雷庭, 张玉龙, 叶仲斌, 等. 玛湖砂砾岩致密油藏水平井CO₂吞吐现场试验效果分析[J]. 油气藏评价与开发, 2021, 11(6):871-877.
	SHI Leiting, ZHANG Yulong, YE Zhongbin, et al. Field test effect analysis of CO₂ huff and puff for EOR of horizontal wells in tight glutenite reservoir of Mahu oilfield[J]. Petroleum Reservoir Evaluation and Development, 2021, 11(6):871-877.
[17]	袁钟涛, 杨胜来, 张政, 等. 特低渗油藏注CO₂吞吐适应性评价及规律模拟[J]. 非常规油气, 2022, 9(5):85-92.
	YUAN Zhongtao, YANG Shenglai, ZHANG Zheng, et al. Adaptability evaluation and regular simulation of CO₂ injection huff and puff in ultra-low permeability reservoirs[J]. Unconventional Oil & Gas, 2022, 9(5):85-92.
[18]	邓振龙, 王鑫, 谭龙, 等. 玛湖凹陷致密砾岩油藏CO₂异步吞吐提高采收率[J]. 新疆石油地质, 2022, 43(2):200-205.
	DENG Zhenlong, WANG Xin, TAN Long, et al. Enhancing oil recovery of tight conglomerate reservoirs by asynchronous CO₂ huff and puff in Mahu sag[J]. Xinjiang Petroleum Geology, 2022, 43(2):200-205.
[19]	SAYEGH S G, MAINI B B. Laboratory evaluation of the CO₂ huff-n-puff process for heavy oil reservoirs[J]. Journal of Canadian Petroleum Technology, 1984, 23(3):29-36.
[20]	张娟, 周立发, 张晓辉, 等. 浅薄层稠油油藏水平井CO₂吞吐效果[J]. 新疆石油地质, 2018, 39(4):485-491.
	ZHANG Juan, ZHOU Lifa, ZHANG Xiaohui, et al. Effects of CO₂ huff and puff in horizontal wells in shallow-burial thin heavy oil reservoirs[J]. Xinjiang Petroleum Geology, 2018, 39(4):485-491.
[21]	王晓燕, 章杨, 张杰, 等. 稠油油藏注CO₂吞吐提高采收率机制[J]. 中国石油大学学报(自然科学版), 2021, 45(6):102-111.
	WANG Xiaoyan, ZHANG Yang, ZHANG Jie, et al. EOR mechanisms of CO₂ huff and puff process for heavy oil recovery[J]. Journal of China University of Petroleum (Edition of Natural Science), 2021, 45(6):102-111.
[22]	李世瑞, 赵凯, 徐江伟, 等. 三塘湖盆地MZ区块致密油藏CO₂吞吐提高采收率[J]. 新疆石油地质, 2023, 44(5):572-576.
	LI Shirui, ZHAO Kai, XU Jiangwei, et al. Enhanced oil recovery by CO₂ huff-n-puff in tight oil reservoirs in Mazhong block,Santanghu basin[J]. Xinjiang Petroleum Geology, 2023, 44(5):572-576.
[23]	蒲万芬, 汪洋松, 李龙威, 等. 致密砾岩油藏超临界CO₂吞吐开发可行性[J]. 新疆石油地质, 2021, 42(4):456-461.
	PU Wanfen, WANG Yangsong, LI Longwei, et al. Feasibility of supercritical CO₂ huff-puff development of tight conglomerate reservoirs[J]. Xinjiang Petroleum Geology, 2021, 42(4):456-461.
[24]	廖松林, 夏阳, 崔轶男, 等. 超低渗油藏水平井注CO₂多周期吞吐原油性质变化规律研究[J]. 油气藏评价与开发, 2022, 12(5):784-793.
	LIAO Songlin, XIA Yang, CUI Yi’nan, et al. Variation of crude oil properties with multi-cycle CO₂ huff-n-puff of horizontal wells in ultra-low permeability reservoir[J]. Petroleum Reservoir Evaluation and Development, 2022, 12(5):784-793.
[25]	叶义平, 蒋庆平, 梁程, 等. 玛湖井区上乌尔禾组砂砾岩水敏伤害机理实验研究[J]. 科学技术与工程, 2022, 22(27):11895-11903.
	YE Yiping, JIANG Qingping, LIANG Cheng, et al. Experimental study on the mechanism of water-sensitive injury in upper Urho formation sand and gravels of the Mahu well area[J]. Science Technology and Engineering, 2022, 22(27):11895-11903.
[26]	唐勇, 雷德文, 曹剑, 等. 准噶尔盆地二叠系全油气系统与源内天然气勘探新领域[J]. 新疆石油地质, 2022, 43(6):654-662.
	TANG Yong, LEI Dewen, CAO Jian, et al. Total petroleum system and inner-source natural gas exploration in Permian strata of Junggar basin[J]. Xinjiang Petroleum Geology, 2022, 43(6):654-662.
[27]	郑国伟, 高之业, 黄立良, 等. 准噶尔盆地玛湖凹陷二叠系风城组页岩储层润湿性及其主控因素[J]. 石油与天然气地质, 2022, 43(5):1206-1220.
	ZHENG Guowei, GAO Zhiye, HUANG Liliang, et al. Wettability of the Permian Fengcheng formation shale in the Mahu sag,Junggar basin,and its main control factors[J]. Oil & Gas Geology, 2022, 43(5):1206-1220.
[28]	李晶晶, 孙国翔, 刘琦, 等. 吉木萨尔凹陷芦一段页岩储集层孔隙结构及敏感性[J]. 新疆石油地质, 2021, 42(5):541-547.
	LI Jingjing, SUN Guoxiang, LIU Qi, et al. Pore structure and sensitivity of shale reservoir in Lu 1 member of Jimsar sag[J]. Xinjiang Petroleum Geology, 2021, 42(5):541-547.
[29]	BISHOP S R. The experimental investigation of formation damage due to the induced flocculation of clays within a sandstone pore structure by a high salinity brine[R]. SPE 38156-MS, 1997.
[30]	代旭光, 王猛, 冯光俊, 等. 超临界CO₂-水-页岩作用矿物溶蚀/沉淀特征及其对页岩吸附性的影响[J]. 煤炭学报, 2023, 48(7):2813-2826.
	DAI Xuguang, WANG Meng, FENG Guangjun, et al. Mineralogical erosion and precipitation characteristics and their effects on adsorption property of shale during sc CO₂-H₂O-shale interaction[J]. Journal of China Coal Society, 2023, 48(7):2813-2826.

井名	目的层埋深/m	水平段长度/m	油层钻遇率/%	压力系数	地层压力/MPa	井距/m	压裂段数	簇数
M1井	3 532	818	100	1.2	41.58	200	8	14
M2井	3 547	1 200	100	1.2	41.76	200	17	33
M3井	3 566	1 223	100	1.2	41.98	200	17	33
M8井	3 602	1 600	100	1.2	45.45	260	18	87
M9井	3 601	1 601	100	1.2	45.45	260	18	99

井名	基本情况							CO₂吞吐参数
井名	投产日期/ 年-月-日	孔隙度/ %	含油饱和度/%	改造段长度/m	初期日产油量/t	初期日产液量/t	自喷天数/d	注入压力/ MPa	注气速度/ （t·d^-1）	累计注气量/t	焖井时间/d
M1井	2019-10-10	6~17（10）	44~76（63）	491	4.3	8.8	235	15.3	14.0~50.7（43.9）	1 450.0	45
M2井	2019-10-10	7~13（10）	49~65（62）	1 200	15.4	34.1	310	13.3	12.6~80.2（47.8）	4 492.3	45
M3井	2019-06-12	5~21（9）	34~82（59）	1 223	22.0	38.7	387	19.1	6.6~84.2（62.7）	5 075.2	45
井名	吞吐前生产情况					吞吐后初期生产情况			吞吐后开井生产天数/d	目前日产油量/t	累计增油量/t
井名	日产油量/t	日产液量/t		含水率/%	累计产油量/t	油嘴/mm	油压/MPa	日产油量/t	吞吐后开井生产天数/d	目前日产油量/t	累计增油量/t
M1井	0.1	0.6		83.3	2 650.5	3~4	16.17	6.2	299	0.4	417.3
M2井	0.2	1.0		80.0	7 009.0	3~4	11.68	7.2	299	1.0	811.2
M3井	0	0.1		73.1	5 828.4	3~4	11.99	6.5	299	1.8	395.4

Simultaneous CO₂ Huff-n-Puff Test in Highly Sensitive Reservoirs in Upper Wuerhe Formation, Mahu Sag

RichHTML

PDF

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 8

References 30

Related Articles 15

Recommended Articles

Metrics

Comments

[1]	LI Na, LI Hui, LIU Hong, CHEN Fangwen, YANG Sen, ZOU Yang. Optimization of Geological Sweet Spots for Shale Oil in Fengcheng Formation in Well Maye-1, Mahu Sag [J]. Xinjiang Petroleum Geology, 2024, 45(3): 271-278.
[2]	ZHU Yue, WU Shunwei, DENG Yusen, LIU Lin, LEI Xianghui, NIU Youmu. Pore Throat Structures and Fluid Occurrences of Reservoirs in Fengcheng Formation, Mahu Sag [J]. Xinjiang Petroleum Geology, 2024, 45(3): 286-295.
[3]	BIAN Baoli, SU Dongxu, JIANG Wenlong, WANG Xueyong, PAN Jin, LIU Longsong, JIANG Zhongfa. Exploration Breakthrough and New Insights of Baijiantan Formation in Mahu Sag and Its Periphery [J]. Xinjiang Petroleum Geology, 2024, 45(3): 296-305.
[4]	WAN Tao, ZHANG Jing, DONG Yan. Microscopic Oil Mobility in Tight Conglomerate Reservoirs Under Different Development Modes, Mahu Sag [J]. Xinjiang Petroleum Geology, 2024, 45(3): 327-333.
[5]	XIAO Zhipeng, ZHANG Yanbin, LI Qihang, LI Yiqiang, HAN Jifan, YAN Qian, WU Yong’en. Influences of Low-Temperature Oxidation on Oil Recovery During Oxygen-Reduced Air Flooding in Guo-8 Block of Yuguo Oilfield [J]. Xinjiang Petroleum Geology, 2024, 45(3): 334-339.
[6]	LIU Chaowei, LI Hui, WANG Zesheng, WANG Qiuyu, XIE Zhiyi, HUANG Zhiqiang, ZHANG Rong. Breakthrough and Implication of Oil and Gas Exploration in Permian Upper Wuerhe Formation in Fukang Sag, Junggar Basin [J]. Xinjiang Petroleum Geology, 2024, 45(2): 139-150.
[7]	XIONG Ting, LIU Yu, CHEN Wenli, ZHONG Weijun, JIA Chunming, JIANG Tao, SHANG Chun. New Understanding of Hydrocarbon Accumulation Model of Upper Wuerhe Formation on Western Slope of Shawan Sag, Junggar Basin [J]. Xinjiang Petroleum Geology, 2024, 45(2): 151-162.
[8]	KUANG Hao, ZHOU Yuandong, LIU Hao, PAN Lang, ZHOU Runchi, WANG Junmin, TAN Xianfeng. Genesis of Differential Bonding Between Zeolite Cements and Clastic Particles in Sandy Conglomerates in Shawan Sag，Junggar Basin [J]. Xinjiang Petroleum Geology, 2024, 45(2): 163-171.
[9]	LYU Xiaoguang, LI Wei. Thermally Recovered Reservoir Management and EOR for a Multi-Layered Sandstone Oilfield [J]. Xinjiang Petroleum Geology, 2024, 45(1): 65-71.
[10]	MAO Rui, ZHAO Lei, SHEN Ziming, LUO Xingping, CHEN Shanhe, FENG Cheng. Characteristics of Alkaline Minerals and Logging Evaluation of Trona in Fengcheng Formation of Mahu Sag [J]. Xinjiang Petroleum Geology, 2023, 44(6): 667-673.
[11]	FU Yarong, DOU Qinguang, LIU Ze, JIAO Lifang, JI Yuxi, YANG Yajuan, YIN Houfeng. Secondary Development of Mature Oilfields in China: Current Status and Prospects [J]. Xinjiang Petroleum Geology, 2023, 44(6): 739-750.
[12]	LI Shirui, ZHAO Kai, XU Jiangwei, Murzhaty ASKUR, XU Jinlu, ZHANG Xing. Enhanced Oil Recovery by CO₂ Huff-n-Puff in Tight Oil Reservoirs in Mazhong Block，Santanghu Basin [J]. Xinjiang Petroleum Geology, 2023, 44(5): 572-576.
[13]	XIE Peng, CHEN Pengyu, ZHAO Hailong, Xu Jianting. Water Invasion Characteristics and Residual Gas Distribution in Fractured-Porous Carbonate Reservoirs [J]. Xinjiang Petroleum Geology, 2023, 44(5): 583-591.
[14]	CHENG Hong. Experimental Study on Nitrogen-Assisted Gravity Drainage in Karst Reservoirs of Different Genesis [J]. Xinjiang Petroleum Geology, 2023, 44(5): 613-617.
[15]	WEI Zijian, SHENG Jiaping, ZHANG Xiao. Stimulation Capability of Low-Medium Maturity Shale Oil Reservoir During In-Situ Conversion [J]. Xinjiang Petroleum Geology, 2023, 44(4): 485-496.