深层低渗凝析气藏气驱适应性研究

doi:10.13809/j.cnki.cn32-1825/te.2024.03.002

Abstract

Abstract:

The transition from depletion mining to gas flooding in deep low permeability condensate gas reservoirs poses significant adaptability challenges. To address these, a series of evaluation studies were conducted using the Pressure-Volume-Temperature（PVT）analyzer, long core displacement physical simulation technology, and numerical simulation calculations. This research specifically examines the impacts of CO₂ injection, natural gas（associated gas or pure CH₄）, and nitrogen（N₂）on the high-pressure physical properties of condensate gas systems and their potential to improve condensate oil recovery. Comparative analyses reveal that CO₂, due to its high solubility and favorable gas-oil dissolution ratio in condensate oil, significantly reduces the saturation pressure and dew-point pressure of condensate gas reservoirs, thereby offering the most substantial improvement in oil recovery rates. Further optimization studies using long core physical simulation technology focused on injection timing, modes, and rates for CO₂ flooding. It was determined that pulsed gas injection strategies are particularly effective when implemented above the dew-point pressure. These findings provide essential data to support the formulation of technical policies and field plans for gas injection development in such challenging reservoir conditions.

Key words: condensate gas reservoir, deep low permeability, gas injection medium, gas flooding adaptability, parameter optimization

CLC Number:

TE357

LI Zhongchao, QI Guixue, LUO Bobo, XU Xun, CHEN Hua. Gas flooding adaptability of deep low permeability condensate gas reservoir[J].Petroleum Reservoir Evaluation and Development, 2024, 14(3): 324-332.

Figures/Tables 12

Table 1

Fig.1

Fig. 2

Table 2

Table 3

Fig. 3

Fig. 4

Fig. 5

Fig. 6

Fig. 7

Fig. 8

Fig. 9

References 30

[1]	白俊, 张雄君. 中国天然气供应安全形势与建议[J]. 天然气技术与经济, 2020, 14(1): 1-5. doi: 10.3969/j.issn.2095-1132.2020.01.001
	BAI Jun, ZHANG Xiongjun. China's natural-gas supply security and its suggestions[J]. Natural Gas Technology and Economy, 2020, 14(1): 1-5. doi: 10.3969/j.issn.2095-1132.2020.01.001
[2]	李云峰, 吴晓红, 李然, 等. 高5断块深层致密油水平井钻井关键技术实践[J]. 石油机械, 2023, 51(11): 102-107.
	LI Yunfeng, WU Xiaohong, LI Ran, et al. Practice of key technologies for drilling horizontal well in deep tight oil reservoir of Gao 5 Fault Block[J]. China Petroleum Machinery, 2023, 51(11): 102-107.
[3]	刘成林, 任杨, 孙林, 等. 海上特低渗砂岩储层酸化增效技术研究与应用[J]. 石油机械, 2022, 50(9): 117-124.
	LIU Chenglin, REN Yang, SUN Lin, et al. Research and application of acidizing technology in offshore ultra-low permeability sandstone reservoir[J]. China Petroleum Machinery, 2022, 50(9): 117-124.
[4]	刘平, 李中超, 齐桂雪, 等. 高温高盐油藏CO₂混相调节剂效果因素室内评价[J]. 断块油气田, 2022, 29(6): 749-753.
	LIU Ping, LI Zhongchao, QI Guixue, et al. Experimental evaluation on the effect factor of CO₂ miscible regulator in high temperature and high salinity reservoir[J]. Fault-Block Oil & Gas Field, 2022, 29(6): 749-753.
[5]	齐桂雪, 李中超, 刘平, 等. 凝析气藏气驱二维填砂物理模型实验研究[J]. 断块油气田, 2022, 29(2): 164-170.
	QI Guixue, LI Zhongchao, LIU Ping, et al. An experimental study of two-dimensional sand filling physical model for gas flooding in condensate gas reservoir[J]. Fault-Block Oil & Gas Field, 2022, 29(2): 164-170.
[6]	王义凤, 李剑, 国建英, 等. 中国凝析油分布、成藏特征及新成因分类[J/OL]. 天然气地球科学: 1-14[2024-04-10]. http://kns.cnki.net/kcms/detail/62.1177.TE.20240405.1542.004.html.
	WANG Yifeng, LI Jian, GUO Jianying, et al. Distribution, accumulation characteristics and new genetic classification of condensate oil in China[J/OL]. Natural Gas Geoscience: 1-14[2024-04-10]. http://kns.cnki.net/kcms/detail/62.1177.TE.20240405.1542.004.html.
[7]	赵陶然, 王飞宇, 彭靖淞, 等. CO₂充注对油气藏相态的影响及凝析气藏成因分析——以渤中19-6凝析气藏为例[J]. 中国海上油气, 2023, 35(5): 24-34.
	ZHAO Taoran, WANG Feiyu, PENG Jingsong, et al. Influence of CO₂ injection on phase behavior of oil and gas reservoirs and analysis of gas condensate reservoir genesis: A case study of BZ19-6 gas condensate reservoir[J]. China Offshore Oil and Gas, 2023, 35(5): 24-34.
[8]	雷霄, 王雯娟, 李跃林, 等. 考虑水蒸发的高温凝析气藏数值模拟方法[J]. 中国海上油气, 2022, 34(5): 101-107.
	LEI Xiao, WANG Wenjuan, LI Yuelin, et al. Numerical simulation for high temperature condensate gas reservoirs considering water evaporation[J]. China Offshore Oil and Gas, 2022, 34(5): 101-107.
[9]	沈建新, 刘建仪, 刘举, 等. 迪那2气藏凝析水结垢规律实验研究[J]. 中国海上油气, 2022, 34(1): 94-101.
	SHEN Jianxin, LIU Jianyi, LIU Ju, et al. Experimental study on scaling law of condensate water in Dina 2 gas reservoir[J]. China Offshore Oil and Gas, 2022, 34(1): 94-101.
[10]	王威翔, 周志军, 张祺, 等. 凝析气藏高压物性及反凝析污染评价实验[J]. 石油化工应用, 2023, 42(9): 45-49.
	WANG Weixiang, ZHOU Zhijun, ZHANG Qi, et al. Evaluation experiment of high pressure physical properties and reverse condensate pollution of condensate gas reservoir[J]. Petrochemical Industry Application, 2023, 42(9): 45-49.
[11]	兰晶晶, 唐帆, 谢代培, 等. 致密油藏 CO₂ 驱油提高采收率实验研究[J]. 当代化工, 2023, 52(4): 997-1001.
	LAN Jingjing, TANG Fan, XIE Daipei, et al. Study on enhanced oil recovery by CO₂ flooding in tight oil reservoirs[J]. Contemporary Chemical Industry, 2023, 52(4): 997-1001.
[12]	李凤, 张本艳, 朱婧. 致密砂岩气藏反凝析伤害及开采对策研究[J]. 西南石油大学学报(自然科学版), 2022, 44(3): 197-206. doi: 10.11885/j.issn.1674-5086.2022.01.24.05
	LI Feng, ZHANG Benyan, ZHU Jing. Research on the retrograde condensate damage and development strategies in tights and stone gas reservoir[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2022, 44(3): 197-206. doi: 10.11885/j.issn.1674-5086.2022.01.24.05
[13]	冯强汉, 邓宝康, 杨映洲, 等. 致密砂岩凝析气藏反凝析伤害评价及解除方法[J]. 大庆石油地质与开发, 2020, 39(2): 139-146.
	FENG Qianghan, DENG Baokang, YANG Yingzhou, et al. Evaluations and removing methods of the retrograde condensate damage for the gas condensate reservoirs in the tight sandstone[J]. Petroleum Geology & Oilfield Development in Daqing, 2020, 39(2): 139-146.
[14]	胡永乐, 罗凯, 李相方, 等. 凝析、低渗气藏流体相态与渗流机理[M]. 北京: 科学出版社, 2010.
	HU Yongle, LUO Kai, LI Xiangfang, et al. Fluid phase and percolation mechanism of condensate and low permeability gas reservoirs[M]. Beijing: Science Press, 2010.
[15]	陈文龙, 廖发明, 吕波, 等. 牙哈凝析气藏注气开发过程反蒸发动态相态特征[J]. 天然气工业, 2012, 32(8): 67-70.
	CHEN Wenlong, LIAO Faming, LYU Bo, et al. Retrograde vaporization dynamic phase behaviors in gas injection development of the Yaha condensate gas reservoir[J]. Natural Gas Industry, 2012, 32(8): 67-70.
[16]	姜贻伟, 毕建霞, 李闽, 等. 凝析气井反凝析污染对产能影响研究[J]. 西南石油大学学报(自然科学版), 2005, 27(6): 46-47. doi: 10.3863/j.issn.1000-2634.2005.06.13
	JIANG Yiwei, BI Jianxia, LI Min, et al. Study of the effect of retrograde condensation pollution on the productivity of condensate gas well[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2005, 27(6): 46-47. doi: 10.3863/j.issn.1000-2634.2005.06.13
[17]	高建军, 韩继凡, 郝巍, 等. 丘东气田反凝析污染评价及解除方法研究[J]. 特种油气藏, 2010, 17(2): 85-87.
	GAO Jianjun, HAN Jifan, HAO Wei, et al. Study on evaluation and removal of retrograde condensate damage in Qiudong gas field[J]. Special Oil & Gas Reservoir, 2010, 17(2): 85-87.
[18]	刘会锋, 袁学芳, 赵新武, 等. 塔里木吉拉克TII储层伤害因素分析及对策[J]. 钻采工艺, 2015, 38(1): 66-68.
	LIU Huifeng, YUAN Xuefang, ZHAO Xinwu, et al. Analysis of factors causing formation damage in Tarim Jilake TII reservoir and their solutions[J]. Drilling & Production Technology, 2015, 38(1): 66-68.
[19]	李骞, 李相方, 单江, 等. 凝析气藏生产过程中气油比异常原因分析[J]. 天然气工业, 2012, 31(6): 63-65.
	LI Qian, LI Xiangfang, SHAN Jiang, et al. An analysis of reasons for unusual GOR behaviors in the production of gas condensate reservoirs[J]. Natural Gas Industry, 2012, 31(6): 63-65.
[20]	李元生, 伍锐东, 邓雅婷, 等. 基于界面张力影响的凝析气藏相渗时变表征方法[J]. 断块油气田, 2022, 29(6): 854-858.
	LI Yuansheng, WU Ruidong, DENG Yating, et al. Characterization method of time-varying relative permeability in condensate gas reservoir based on influence of interfacial tension[J]. Fault-Block Oil & Gas Field, 2022, 29(6): 854-858.
[21]	夏彪, 崔飞飞, 孙雷, 等. X区块注CO₂和N₂提高反凝析油采收率机理研究[J]. 复杂油气藏, 2013, 6(1): 50-53.
	XIA biao, CUI Feifei, SUN Lei, et al. Study on mechanisms of enhanced condensate oil by CO₂ and N₂ gas injection in Block X[J]. Complex Hydrocarbon Reservoirs, 2013, 6(1): 50-53.
[22]	张可. CO₂与地层油体系界面特征及应用研究[D]. 廊坊: 中国科学院研究生院, 2011.
	ZHANG Ke. Interfacial characteristics and application research on CO₂-formation oil system[D]. Langfang: Graduate School of Chinese Academy of Sciences, 2011.
[23]	邓瑞健, 齐桂雪, 谭肖, 等. 烃组分对CO₂驱最小混相压力的影响[J]. 石油与天然气化工, 2018, 47(6): 59-63.
	DENG Ruijian, QI Guixue, TAN Xiao, et al. Influence of hydrocarbon components on the minimum miscibility pressure of CO₂ flooding[J]. Chemical Engineering of Oil & Gas, 2018, 47(6): 59-63.
[24]	郑晨明, 徐庆松, 李春胜, 等. 超临界CO₂流体萃取技术应用综述[J]. 低温与特气, 2024, 42(1): 12-16.
	ZHENG Chenming, XU Qingsong, LI Chunsheng, et al. Review of the application of supercritical CO₂ fluid extraction technology[J]. Low Temperature and Specialty Gases, 2024, 42(1): 12-16.
[25]	冯甜甜. 超临界CO₂对石油分子的萃取选择性[D]. 北京: 中国石油大学, 2023.
	FENG Tiantian. Extraction selectivity of petroleum molecules by supercritical CO₂[D]. Beijing: China University of Petroleum, 2023.
[26]	冯文池, 张维维. 浅谈超临界CO₂萃取技术[J]. 山东化工, 2022, 51(10): 80-82.
	FENG Wenchi, ZHANG Weiwei. Discussion on supercritical CO₂ extraction technology[J]. Shandong Chemical Industry, 2022, 51(10): 80-82.
[27]	李士伦, 王鸣华, 何江川. 气田与凝析气田开发[M]. 北京: 石油工业出版社, 2004.
	LI Shilun, WANG Minghua, HE Jiangchuan. Gas and condensate field development[M]. Beijing: Petroleum Industry Press, 2004.
[28]	AMRO M, FREESE C, FINCK M, et al. Effect of CO₂-miscibility in EOR[C]// Paper SPE-172705-MS presented at the SPE Middle East Oil & Gas Show and Conference, Manama, Bahrain, March 2015.
[29]	田巍. 凝析气藏注CO₂提高采收率机理物理模拟[J]. 天然气地球科学, 2021, 32(10): 1592-1600.
	TIAN Wei. Physical simulation of EOR mechanism by CO₂ injection for condensate gas reservoir[J]. Natural Gas Geoscience, 2021, 32(10): 1592-1600.
[30]	顾文欢. 2020油气田勘探与开发国际会议论文集[C]. 成都: 陕西省石油学会, 2020.
	GU Wenhuan. Proceedings of the international field exploration and development conference 2020[C]. Chengdu: Shaanxi Petroleum Society, 2020.

凝析气藏名称	埋深/m	平均孔隙度/%	渗透率/（10^-3μm²）	凝析油含量/（mg/L）
雅克拉气藏	4 370~4 450	上气层12.40	上气层62.27	251
雅克拉气藏	4 370~4 450	下气层12.90	下气层120.08	251
大涝坝气藏	4 950~5 170	上气层15.68	上气层59.74	653~875
		中气层71.36	中气层49.70
		下气层15.28	下气层203.08
大张坨气藏	2 560~2 675	23.50	113.00~459.80	630
柯克亚气藏	2 960~4 000	17.46	62.30	500
目标气藏	2 576~4 200	12.10	≤5	53~388

注入气体		注入量摩尔比	凝析油体系饱和压力/MPa
无注气		0	19.541
CO₂		0.05	21.112
		0.10	21.204
		0.20	23.305
		0.30	26.345
天然气（伴生气）		0.05	20.901
		0.10	22.292
		0.20	25.331
天然气（CH₄）		0.05	21.130
		0.10	22.654
		0.20	26.852
N₂		0.05	22.292
N₂		0.10	26.603
不同CO₂体积分数的伴生气	90%	0.10	21.568
	80%		21.602
	60%		21.762
	40%		21.996
	20%		22.275
	10%		22.290

类别	注入气量/ 摩尔比	溶解气油比/ （m³/m³）	凝析油体系黏度变化值/（mPa·s）	液相体积增量/%	产出气凝析油量/%
凝析油	0	122	0	0	0
CO₂	0.2	156	0.098	4.5	0.25
	0.4	183	0.082	8.2	0.42
	0.6	222	0.076	10.5	0.78
	0.8	236	0.069	12.6	1.32
	1.0	251	0.073	11.1	2.02
天然气（CH₄）	0.2	121	0.118	-0.5	0.18
	0.4	120	0.119	-1.8	0.35
	0.6	121	0.120	-3.8	0.47
	0.8	122	0.122	-5.0	0.50
	1.0	122	0.124	-6.1	0.61
N₂	0.2	100	0.125	-0.5	0.12
	0.4	90	0.130	-2.5	0.19
	0.6	75	0.135	-3.9	0.25
	0.8	70	0.141	-5.2	0.30
	1.0	68	0.146	-8.9	0.34

Gas flooding adaptability of deep low permeability condensate gas reservoir

RichHTML

PDF (PC)

Like

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 12

References 30

Related Articles 14

Metrics

Comments

Recommended 10

[1]	TANG Yong, TANG Kai, XIA Guang, XU Di. Retrograde condensation pollution and removal method of BZ19-6 low permeability reservoir [J]. Petroleum Reservoir Evaluation and Development, 2024, 14(1): 102-107.
[2]	ZHAO Kun,LI Zeyang,LIU Juanli,HU Ke,JIANG Ranran,WANG Weixiang,LIU Xiuzhen. Parameter optimization and field practice of CO₂ pre-fracturing process in Jimsar shale oil block [J]. Petroleum Reservoir Evaluation and Development, 2024, 14(1): 83-90.
[3]	CHENG Xiaojun. Enhanced oil recovery and parameter optimization of hydrocarbon injection in fractured-cavity reservoirs [J]. Petroleum Reservoir Evaluation and Development, 2022, 12(6): 902-909.
[4]	TAN Xianhong,LIANG Bin,WANG Shuai,TIAN Bo,PENG Shiqiang,LI Nan,XIA Yang. A productivity evaluation method of gas wells in condensate gas reservoirs with low permeability [J]. Petroleum Reservoir Evaluation and Development, 2021, 11(5): 724-729.
[5]	SUN Bowen,GUO Ping,WU Yiming,WANG Zhouhua,ZHOU Daiyu,LIU Zhiliang. Dew point pressure prediction model of condensate gas reservoir based on alternating conditional expectation transform [J]. Reservoir Evaluation and Development, 2020, 10(4): 107-112.
[6]	LIU Penggang,SUN Tianli,CHEN Wei,HOU Xiaozhi,HUANG Yuanhe,ZHU Guo,HE Hai,FANG Bin. Analysis and optimization of influencing factors of negative pressure stripping desulfurization process for sour water in Yuanba gas field [J]. Reservoir Evaluation and Development, 2020, 10(4): 125-129.
[7]	HE Anle,ZOU Chunmei,CUI Yinan,YAN Jun,ZHANG Hewen,TANG Yong. Research on enhancing condensate oil production by CO₂ huff-n-puff in South A condensate gas reservoir of Zanarol Oilfield [J]. Reservoir Evaluation and Development, 2020, 10(3): 28-32.
[8]	JIN Zhongkang,WANG Zhilin,MAO Chaoqi. Dominant mechanism and application of CO₂ immiscible flooding in M block with low permeability [J]. Reservoir Evaluation and Development, 2020, 10(3): 68-74.
[9]	YANG Xue. EOR technology by dry gas injection after plugging removing by CO₂ huff and puff: A case study of condensate gas reservoir in a block of Zhongyuan Oilfield [J]. Reservoir Evaluation and Development, 2020, 10(3): 75-79.
[10]	ZOU Chunmei,TANG Yong,YAN Jun,SUN Jiewen,LI Yuhong,CUI Yinan. The evaluation methods and application of retrograde condensation damage in condensate gas reservoir [J]. Reservoir Evaluation and Development, 2019, 9(6): 30-34.
[11]	Cao Weijia,Lu Xiangguo,Zhang Yunbao,Xu Guorui,Li Xiang. Study on water plugging effect and mechanism of starch graft copolymer gel [J]. Reservoir Evaluation and Development, 2019, 9(1): 44-50.
[12]	Feng Xiang,Gong Ruxiang,Li Jinsong. Optimization method for injection intensity of multi thermal fluid huff and puff in multiple cycles [J]. Reservoir Evaluation and Development, 2019, 9(1): 64-67.
[13]	Lai Jianlin,Fang Qilong,Gao Yingyun,Wei Wei. Research and application of integral network-fracturing of coal-bed methane of southern Yanchuan [J]. Reservoir Evaluation and Development, 2018, 8(3): 79-82.
[14]	Wang Shaofei,Wang Zhouhua,Zhang Yaling,Guo Ping,Jiao Tingkui,Du Jianfen. A new cognition of the reduction of retrograde condensation damage in gas condensate wells by fracturing [J]. Reservoir Evaluation and Development, 2018, 8(2): 30-34.