Enhancing Oil Recovery of Tight Conglomerate Reservoirs by Asynchronous CO2 Huff and Puff in Mahu Sag

doi:10.7657/XJPG20220211

Abstract

Abstract:

CO₂ can increase formation energy and reduce oil viscosity. Asynchronous CO₂ huff and puff is becoming one of the effective methods for improving the recovery of tight oil reservoirs. The interaction among injection, production and soaking processes can significantly increase inter-well reserves producing degree, and this technology is expected to become an option for enhancing the oil recovery of the Mahu tight conglomerate reservoirs in the Junggar basin. According to the formation pressure, saturation pressure and minimum miscible pressure, an asynchronous CO₂ huff and puff experiment with two cores in parallel was designed for clarifying the influence of reservoir physical properties, injection-production pressure difference and huff-puff timing on development effect. The results show that the crude oil recovery after asynchronous CO₂ huff and puff is about 3-5 times higher than that of the depletion development; the better the physical properties of the reservoir, the smaller the flow resistance, and the more favorable for asynchronous CO₂ huff and puff to improve oil recovery; the greater the injection-production pressure difference, the more significant the inter-well pressure change, and the more crude oil is produced; when the gas injection pressure is greater than the miscible pressure, it is beneficial for supercritical CO₂ to play the role and to improve the recovery; when the formation pressure is higher than the miscible pressure, it is necessary to increase the pressure of the gas injection well and reduce the pressure of the adjacent production well through asynchronous CO₂ huff and puff to increase the pressure difference of the injection-production system, expand the swept volume, and improve the inter-well reserves producing degree.

Key words: Junggar basin, Mahu sag, asynchronous CO₂ huff and puff, EOR, reservoir physical property, injection-production pressure difference, huff-puff timing, miscible pressure

CLC Number:

TE357

DENG Zhenlong, WANG Xin, TAN Long, ZHANG Jigang, CHEN Chao, SONG Ping. 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.

Figures/Tables 8

Fig. 1.

Table 1

Fig. 2.

Fig. 3.

Fig. 4.

Fig. 5.

Table 2

Table 3

References 24

[1]	赵靖舟. 非常规油气有关概念、分类及资源潜力[J]. 天然气地球科学, 2012, 23(3):393-406.
	ZHAO Jingzhou. Conception,classification and resource potential of unconventional hydrocarbons[J]. Natural Gas Geoscience, 2012, 23(3):393-406.
[2]	唐勇, 郭文建, 王霞田, 等. 玛湖凹陷砾岩大油区勘探新突破及启示[J]. 新疆石油地质, 2019, 40(2):127-137.
	TANG Yong, GUO Wenjian, WANG Xiatian, et al. A new breakthrough in exploration of large conglomerate oil province in Mahu sag and its implications[J]. Xinjiang Petroleum Geology, 2019, 40(2):127-137.
[3]	支东明. 玛湖凹陷百口泉组准连续型高效油藏的发现与成藏机制[J]. 新疆石油地质, 2016, 37(4):373-382.
	ZHI Dongming. Discovery and hydrocarbon accumulation mechanism of quasi-continuous high-efficiency reservoirs of Baikouquan formation in Mahu sag, Junggar basin[J]. Xinjiang Petroleum Geology, 2016, 37(4):373-382.
[4]	李国欣, 覃建华, 鲜成钢, 等. 致密砾岩油田高效开发理论认识、关键技术与实践:以准噶尔盆地玛湖油田为例[J]. 石油勘探与开发, 2020, 47(6):1 185-1 197.
	LI Guoxin, QIN Jianhua, XIAN Chenggang, et al. Theoretical understandings,key technologies and practices of tight conglomerate oilfield efficient development:a case study of the Mahu oilfield,Junggar basin,NW China[J]. Petroleum Exploration and Development, 2020, 47(6):1 185-1 197.
[5]	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.
[6]	钱坤, 杨胜来, 窦洪恩, 等. 特低渗油藏不同CO₂注入方式微观驱油特征[J]. 新疆石油地质, 2020, 41(2):204-208.
	QIAN Kun, YANG Shenglai, DOU Hongen, et al. Microscopic characteristics of oil displacement with different CO₂ injection modes in extra-low permeability reservoirs[J]. Xinjiang Petroleum Geology, 2020, 41(2):204-208.
[7]	罗二辉, 胡永乐, 李保柱, 等. 中国油气田注CO₂提高采收率实践[J]. 特种油气藏, 2013, 20(2):1-7.
	LUO Erhui, HU Yongle, LI Baozhu, et al. Practices of CO₂ EOR in China[J]. Special Oil & Gas Reservoirs, 2013, 20(2):1-7.
[8]	TANG Xiang, LI Yiqiang, HAN Xue, et al. Dynamic characteristics and influencing factors of CO₂ huff and puff in tight oil reservoirs[J]. Petroleum Exploration and Development, 2021, 48(4):946-955. doi: 10.1016/S1876-3804(21)60079-4
[9]	MILLER B J, BRETANGE, BARDON C P, et al. CO₂ huff ‘n’puff field case:five-year program update[R]. SPE 27677,1994.
[10]	李士伦, 孙雷, 陈祖华, 等. 再论CO₂驱提高采收率油藏工程理念和开发模式的发展[J]. 油气藏评价与开发, 2020, 10(3):1-14.
	LI Shilun, SUN Lei, CHEN Zuhua, et al. Further discussion on reservoir engineering concept and development mode of CO₂ flooding-EOR technology[J]. Reservoir Evaluation and Development, 2020, 10(3):1-14.
[11]	李爱芬, 陈明强, 宋浩鹏, 等. 焖井时间对CO₂吞吐开发低渗油藏影响机理研究[J]. 科学技术与工程, 2016, 16(7):173-176.
	LI Aifen, CHEN Mingqiang, SONG Haopeng, et al. Mechanism study on soak time for the efficiency of CO₂ huff and puff in developing low permeability reservoirs[J]. Science Technology and Engineering, 2016, 16(7):173-176.
[12]	徐永成, 王庆, 韩军, 等. 应用CO₂吞吐技术改善低渗透油田开发效果的几点认识[J]. 大庆石油地质与开发, 2005, 24(4):69-71.
	XU Yongcheng, WANG Qing, HAN Jun, et al. Some understanging about CO₂ huff and puff to improve development results in low permeability oilfield[J]. Petroleum Geology & Oilfield Development in Daqing, 2005, 24(4):69-71.
[13]	黄小亮, 贾新峰, 周翔, 等. 延长油田低渗油藏长岩心二氧化碳吞吐参数优化[J]. 新疆石油地质, 2015, 36(3):313-316.
	HUANG Xiaoliang, JIA Xinfeng, ZHOU Xiang, et al. Optimization of long core CO₂ huff-n-puff experimental parameters in low permeability reservoir,Yanchang oilfield[J]. Xinjiang Petroleum Geology, 2015, 36(3):313-316.
[14]	史英, 盖长城, 颜菲, 等. 稠油油藏CO₂吞吐合理吞吐轮次[J]. 大庆石油地质与开发, 2017, 36(1):129-133.
	SHI Ying, GAI Changcheng, YAN Fei, et al. Reasonable cyclic times of CO₂ huff and puff for heavy oil reservoirs[J]. Petroleum Geology & Oilfield Development in Daqing, 2017, 36(1):129-133.
[15]	李超, 陈祖华, 胡世莱, 等. 新疆油田JL区块特低渗透油藏CO₂-化学剂复合吞吐技术应用研究[J]. 油气地质与采收率, 2021, 28(3):134-141.
	LI Chao, CHEN Zuhua, HU Shilai, et al. Application of CO₂-chemical agent composite huff and puff in extra-low permeability reservoir of Block JL in Xinjiang oilfield[J]. Petroleum Geology and Recovery Efficiency, 2021, 28(3):134-141.
[16]	武玺, 张祝新, 章晓庆, 等. 大港油田开发中后期稠油油藏CO₂吞吐参数优化及实践[J]. 油气藏评价与开发, 2020, 10(3):80-85.
	WU Xi, ZHANG Zhuxin, ZHANG Xiaoqing, et al. Optimization and practice of CO₂ huff and puff parameters of heavy oil reservoir in the middle and late development stage in Dagang oilfield[J]. Reservoir Evaluation and Development, 2020, 10(3):80-85.
[17]	汤翔, 李宜强, 韩雪, 等. 致密油二氧化碳吞吐动态特征及影响因素[J]. 石油勘探与开发, 2021, 48(4):817-824.
	TANG Xiang, LI Yiqiang, HAN Xue, et al. Dynamic characteristics and influencing factors of CO₂ huff and puff in tight oil reservoirs[J]. Petroleum Exploration and Development, 2021, 48(4):817-824.
[18]	孙丽丽, 李治平, 窦宏恩, 等. 超低渗油藏CO₂吞吐室内评价及参数优化[J]. 油田化学, 2018, 35(2):268-272.
	SUN Lili, LI Zhiping, DOU Hongen, et al. Laboratory evaluation and parameter optimization of CO₂ huff-n-puff in ultra-low permeability reservoirs[J]. Oilfield Chemistry, 2018, 35(2):268-272.
[19]	罗永成, 孙灵辉, 吴振凯, 等. 基于扩散系数变化的致密储层水平井CO₂吞吐产能预测模型[J]. 科学技术与工程, 2021, 21(9):3 588-3 594.
	LUO Yongcheng, SUN Linghui, WU Zhenkai, et al. CO₂ huff-n-puff productivity prediction model of horizontal wells in tight reservoir based on change of diffusion coefficient[J]. Science Technology and Engineering, 2021, 21(9):3 588-3 594.
[20]	ABEDINI A, TORABI F. Oil recovery performance of immiscible and miscible CO₂ huff-and-puff processes[J]. Energy & Fuels, 2014, 28:774-784. doi: 10.1021/ef401363b
[21]	张朝富, 刘滨, 蒲玉娥, 等. 稠油油藏CO₂吞吐参数优化[J]. 新疆石油地质, 2011, 32(5):528-530.
	ZHANG Chaofu, LIU Bin, PU Yu’e, et al. Optimization of CO₂ huff and puff parameter of heavy oil reservoirs[J]. Xinjiang Petroleum Geology, 2011, 32(5):528-530.
[22]	范希彬, 蒲万芬, 单江涛, 等. 致密砾岩油藏CO₂吞吐提高采收率可行性研究[J]. 油气藏评价与开发, 2021, 11(6):831-836.
	FAN Xibin, PU Wanfen, SHAN Jiangtao, et al. Feasibility of enhanced oil recovery by CO₂ huff-n-puff in tight conglomerate reservoir[J]. Petroleum Reservoir Evaluation and Development, 2021, 11(6):831-836.
[23]	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.
[24]	吴松芸. 大安油田红87-9区块CO₂吞吐驱油实验研究[D]. 成都:西南石油大学, 2019.
	WU Songyun. Experimental study on CO₂ huff and puff in Hong 87-9 block of Daan oilfield[D]. Chengdu:Southwest Petroleum University, 2019.

Enhancing Oil Recovery of Tight Conglomerate Reservoirs by Asynchronous CO₂ Huff and Puff in Mahu Sag

RichHTML

PDF

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 8

References 24

Related Articles 15

Recommended Articles

Metrics

Comments

[1]	Alifjian REHMTULY, PAN Long, LI Xianmin, LIN Juan, MA Jingjing, DOU Qiangfeng. Development and Application of Velocity Modeling Method Based on Double Square Root Operator [J]. Xinjiang Petroleum Geology, 2023, 44(1): 119-124.
[2]	KUANG Hao, ZHOU Runchi, WANG Junmin, LIU Hao, TAN Xianfeng, CAI Xinyong, XIAO Zhenxing. Differences and Genesis of Upper Wuerhe Formation Reservoirs in Mahu Sag and Shawan Sag [J]. Xinjiang Petroleum Geology, 2023, 44(1): 18-24.
[3]	JIN Zhijun, LIANG Xinping, WANG Xiaojun, ZHU Rukai, ZHANG Yuanyuan, LIU Guoping, GAO Jiahong. Shale Oil Enrichment Mechanism and Sweet Spot Selection of Fengcheng Formation in Mahu Sag，Junggar Basin [J]. Xinjiang Petroleum Geology, 2022, 43(6): 631-639.
[4]	HE Haiqing, TANG Yong, ZOU Zhiwen, GUO Huajun, XU Yang, LI Yazhe. Lithofacies Paleogeography and Petroleum Exploration of Fengcheng Formation in Western Central Depression of Junggar Basin [J]. Xinjiang Petroleum Geology, 2022, 43(6): 640-653.
[5]	TANG Yong, LEI Dewen, CAO Jian, LIU Yin, HUANG Liliang, LI Hui. Total Petroleum System and Inner-Source Natural Gas Exploration in Permian Strata of Junggar Basin [J]. Xinjiang Petroleum Geology, 2022, 43(6): 654-662.
[6]	HE Wenjun, SONG Yong, TANG Shiqi, YOU Xincai, BAI Yu, ZHAO Yi. Hydrocarbon Accumulation Mechanism of Total Petroleum System in Permian Fengcheng Formation，Mahu Sag [J]. Xinjiang Petroleum Geology, 2022, 43(6): 663-673.
[7]	GONG Deyu, LIU Hailei, YANG Haibo, LI Zonghao, WANG Ruiju, WU Weian. Gas Generation Potential of Fengcheng Formation Source Rocks and Exploration Fields in Junggar Basin [J]. Xinjiang Petroleum Geology, 2022, 43(6): 674-683.
[8]	JIANG Wenlong, Ablimit·YIMING , BIAN Baoli, WANG Tao, REN Haijiao, HAN Yang. Changes and Significance of Biomarkers in Thermal Evolution of Fengcheng Formation Source Rocks in Northwestern Margin of Junggar Basin [J]. Xinjiang Petroleum Geology, 2022, 43(6): 684-692.
[9]	QIAN Menhui, WANG Xulong, LI Maowen, LI Zhiming, LENG Junying, SUN Zhongliang. Oil-Bearing Properties and Hydrocarbon Occurrence States of Fengcheng Formation Shale in Well Maye-1，Mahu Sag [J]. Xinjiang Petroleum Geology, 2022, 43(6): 693-703.
[10]	SHAN Xiang, DOU Yang, YAN Qi, CHEN Xiguang, PENG Bo, YI Junfeng. Characteristics and Controlling Factors of Tight Oil Reservoirs of Fengcheng Formation in Southern Slope of Mahu Sag [J]. Xinjiang Petroleum Geology, 2022, 43(6): 704-713.
[11]	ZOU Yang, QI Yanping, SONG Dong, CHEN Wenshun, WEI Panyun. Geological Characteristics and Sweet Spot Evaluation of Shale Oil Reservoir in Fengcheng Formation in Well Maye-1 [J]. Xinjiang Petroleum Geology, 2022, 43(6): 714-723.
[12]	LEI Haiyan, QI Jing, ZHOU Ni, CHEN Jun, MENG Ying, ZHANG Xixin, CHEN Ruibing. Genesis and Petroleum Significance of Silica-Rich Shale in Fengcheng Formation of Well Maye-1，Mahu Sag [J]. Xinjiang Petroleum Geology, 2022, 43(6): 724-732.
[13]	LIU Caiguang, JI Ruixue, WANG Wei, ZHANG Rong. Factors Influencing Shale Oil Production and Sweet Spot Evaluation of Fengcheng Formation，Mahu Sag [J]. Xinjiang Petroleum Geology, 2022, 43(6): 733-742.
[14]	MAO Rui, SHEN Ziming, ZHANG Hao, CHEN Shanhe, FAN Haitao. Lithology Identification for Diamictite Based on Lithology Scan Logging: A Case Study on Fengcheng Formation, Mahu Sag [J]. Xinjiang Petroleum Geology, 2022, 43(6): 743-749.
[15]	YU Peirong, ZHENG Guoqing, SUN Futai, WANG Zhenlin. Simulation on Fracture Propagation During Hydraulic Fracturing in Horizontal Wells in Shale Reservoirs of Fengcheng Formation，Mahu Sag [J]. Xinjiang Petroleum Geology, 2022, 43(6): 750-756.