CCUS-EOR过程中油气体系相间传质特征

doi:10.7657/XJPG20240511

摘要/Abstract

摘要：

CO₂驱油是利用CO₂提高原油采收率（CCUS-EOR）的技术，是减少碳排放的有效手段之一。为了研究油藏注CO₂过程中油气体系相间传质特征，开展了油藏注CO₂/干气接触实验，明确了不同压力下油藏注气过程中一次接触条件下油气体系组分变化规律。研究结果表明：CO₂与原油一次接触过程中，对挥发性组分和不易挥发组分的相间传质是蒸发抽提，对中间组分的相间传质是溶解扩散，且溶解扩散能力强于蒸发抽提；随着压力的上升，挥发性组分的蒸发抽提能力增强，不易挥发组分的蒸发抽提能力减弱，中间组分的溶解扩散能力增强；注气初期压力较低时，油气体系相间传质以蒸发抽提为主，随着压力上升，油气体系中挥发性组分的相间传质变为溶解扩散；干气与原油一次接触过程中，中间组分和不易挥发组分的相间传质是蒸发抽提；CO₂对原油的蒸发抽提能力远强于干气。

关键词: CCUS-EOR, 一次接触, 蒸发气驱, 凝析气驱, 蒸发抽提, 溶解扩散

Abstract:

CO₂ flooding is a technique that utilizes CO₂ to enhance oil recovery (CCUS-EOR), and an effective means to reduce carbon emissions. To understand the interphase mass transfer in the petroleum system during CCUS-EOR, CO₂/dry gas contact experiments were conducted to elucidate the changes in components of the petroleum system during the initial contact conditions at different pressures. The results indicate that during the initial contact between CO₂ and oil, the interphase mass transfer for volatile and non-volatile components occurs through evaporative extraction, while the interphase mass transfer for intermediate components occurs through dissolution diffusion, which is stronger than evaporative extraction. As pressure increases, the volatile components show enhanced evaporative extraction, the non-volatile components reflect diminished evaporative extraction, and the intermediate components exhibit augmented dissolution diffusion. At relatively low pressure in the initial stage of gas injection, the interphase mass transfer of the petroleum system is dominated by evaporative extraction. As pressure increases, the mechanism of interphase mass transfer for volatile components shifts to dissolution diffusion. During the initial contact process between dry gas and oil, the interphase mass transfer for intermediate and non-volatile components is dominantly evaporative extraction. CO₂ is more capable of evaporative extraction than dry gas.

Key words: CCUS-EOR, initial contact, evaporative gas flooding, condensate gas flooding, evaporative extraction, dissolution diffusion

中图分类号:

TE341

苏金长, 刘斌, 李儒广. CCUS-EOR过程中油气体系相间传质特征[J]. 新疆石油地质, 2024, 45(5): 590-594.

SU Jinchang, LIU Bin, LI Ruguang. Interphase Mass Transfer in the Petroleum System During CCUS-EOR Process[J]. Xinjiang Petroleum Geology, 2024, 45(5): 590-594.

图/表 4

参考文献 26

[1]	常毓文, 冯乃超. “双碳”目标下油气行业发展对策[J]. 新疆石油地质, 2022, 43(2):235-240.
	CHANG Yuwen, FENG Naichao. Development countermeasures for oil and gas industry under the background of “carbon peaking and carbon neutrality”[J]. Xinjiang Petroleum Geology, 2022, 43(2):235-240.
[2]	向勇, 侯力, 杜猛, 等. 中国CCUS-EOR技术研究进展及发展前景[J]. 油气地质与采收率, 2023, 30(2):1-17.
	XIANG Yong, HOU Li, DU Meng, et al. Research progress and development prospect of CCUS-EOR technologies in China[J]. Petroleum Geology and Recovery Efficiency, 2023, 30(2):1-17.
[3]	张贤, 李阳, 马乔, 等. 我国碳捕集利用与封存技术发展研究[J]. 中国工程科学, 2021, 23(6):70-80.
	ZHANG Xian, LI Yang, MA Qiao, et al. Development of carbon capture,utilization and storage technology in China[J]. Strategic Study of CAE, 2021, 23(6):70-80.
[4]	张烈辉, 曹成, 文绍牧, 等. 碳达峰碳中和背景下发展CO₂-EGR的思考[J]. 天然气工业, 2023, 43(1):13-22.
	ZHANG Liehui, CAO Cheng, WEN Shaomu, et al. Thoughts on the development of CO₂-EGR under the background of carbon peak and carbon neutrality[J]. Natural Gas Industry, 2023, 43(1):13-22.
[5]	汪集暘, 孔彦龙, 段忠丰, 等. “双碳”目标下煤田区地热资源开发利用与储能技术[J]. 煤田地质与勘探, 2023, 51(2):1-11.
	WANG Jiyang, KONG Yanlong, DUAN Zhongfeng, et al. Geothermal energy exploitation and storage in coal field under the dual carbon goal[J]. Coal Geology & Exploration, 2023, 51(2):1-11.
[6]	MELZER L S. Carbon dioxide enhanced oil recovery(CO₂-EOR):Factors involved in adding carbon capture,utilization and storage(CCUS) to enhanced oil recovery[R]. Midland: Melzer Consulting, 2012.
[7]	周淑慧, 王军, 梁严. 碳中和背景下中国“十四五”天然气行业发展[J]. 天然气工业, 2021, 41(2):171-182.
	ZHOU Shuhui, WANG Jun, LIANG Yan. Development of China’s natural gas industry during the 14th Five-Year Plan in the background of carbon neutrality[J]. Natural Gas Industry, 2021, 41(2):171-182.
[8]	邹才能, 薛华庆, 熊波, 等. “碳中和”的内涵、创新与愿景[J]. 天然气工业, 2021, 41(8):46-57.
	ZOU Caineng, XUE Huaqing, XIONG Bo, et al. Connotation,innovation and vision of “carbon neutral”[J]. Natural Gas Industry, 2021, 41(8):46-57.
[9]	王彬, 杜建芬, 刘奇, 等. 带油环凝析气藏注气吞吐采出流体特征[J]. 新疆石油地质, 2022, 43(1):48-51.
	WANG Bin, DU Jianfen, LIU Qi, et al. Characteristics of produced fluid from condensate gas reservoirs with oil rings developed by gas-injection huff and puff[J]. Xinjiang Petroleum Geology, 2022, 43(1):48-51.
[10]	龙安林, 祁青山, 陈小龙, 等. 减氧空气辅助重力驱全直径岩心物理模拟:以青海油田尕斯库勒E13油藏为例[J]. 新疆石油地质, 2021, 42(5):565-571.
	LONG Anlin, QI Qingshan, CHEN Xiaolong, et al. Full-diameter physical simulation of oxygen-reducing air assisted gravity drainage:A case study of Gasikule E13 reservoir in Qinghai oilfield[J]. Xinjiang Petroleum Geology, 2021, 42(5):565-571.
[11]	全国石油天然气标准化技术委员会. 油气藏流体物性分析方法:GB/T 26981—2020[S]. 北京: 中国标准出版社, 2020.
	National Petroleum and Natural Gas Standardization Technology Committee. Analysis method for reservoir fluid physical properties:GB/T 26981—2020[S]. Beijing: Standards Press of China, 2020.
[12]	张可, 李实, 陈兴隆, 等. 油气藏流体的相态分析[M]. 北京: 石油工业出版社, 2018.
	ZHANG Ke, LI Shi, CHEN Xinglong, et al. Phase analysis of oil and gas reservoir fluids[M]. Beijing: Petroleum Industry Press, 2018.
[13]	全国天然气标准化技术委员会. 天然气的组成分析气相色谱法:GB/T 13610—2020[S]. 北京: 中国标准出版社, 2020.
	China Natural Gas Standardization Technology Committee. Analysis of natural gas composition (gas chromatography):GB/T 13610—2020[S]. Beijing: Standards Press of China, 2020.
[14]	李艳明, 刘静, 张棚, 等. 鄯善油田特高含水期CO₂吞吐增油与埋存试验[J]. 新疆石油地质, 2023, 44(3):327-333.
	LI Yanming, LIU Jing, ZHANG Peng, et al. CO₂ huff-n-puff and storage test in extra-high water cut stage in Shanshan oilfield[J]. Xinjiang Petroleum Geology, 2023, 44(3):327-333.
[15]	杨明, 薛程伟, 李朝阳, 等. 页岩油CO₂吞吐影响因素及微观孔隙动用特征[J]. 大庆石油地质与开发, 2023, 42(4):148-156.
	YANG Ming, XUE Chengwei, LI Chaoyang, et al. Influencing factors of CO₂ huff and puff and micro-pores producing characteristics of shale oil[J]. Petroleum Geology & Oilfield Development in Daqing, 2023, 42(4):148-156.
[16]	崔传智, 李安慧, 吴忠维, 等. 基于物质平衡方程的CO₂理论构造埋存量计算新方法[J]. 特种油气藏, 2023, 30(1):74-78. doi: 10.3969/j.issn.1006-6535.2023.01.010
	CUI Chuanzhi, LI Anhui, WU Zhongwei, et al. A new method for calculating the theoretical tectonic CO₂ storage volume based on material balance equation[J]. Special Oil & Gas Reservoirs, 2023, 30(1):74-78.
[17]	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.
[18]	张广东, 李祖友, 刘建仪, 等. 注烃混相驱最小混相压力确定方法研究[J]. 钻采工艺, 2008, 31(3):99-102.
	ZHANG Guangdong, LI Zuyou, LIU Jianyi, et al. Study on determine methods of minimum miscibility pressure of hydrocarbon injection miscible flooding[J]. Drilling & Production Technology, 2008, 31(3):99-102.
[19]	汤勇, 孙雷, 周涌沂, 等. 注气混相驱机理评价方法[J]. 新疆石油地质, 2004, 25(4):414-417.
	TANG Yong, SUN Lei, ZHOU Yongyi, et al. On evaluation method of miscible gas-flooding mechanism[J]. Xinjiang Petroleum Geology, 2004, 25(4):414-417.
[20]	汤勇, 孙雷, 周涌沂, 等. 注富烃气凝析/蒸发混相驱机理评价[J]. 石油勘探与开发, 2005, 32(2):133-136.
	TANG Yong, SUN Lei, ZHOU Yongyi, et al. Mechanism evaluation of condensing/vaporizing miscible flooding with hydrocarbon-rich gas injection[J]. Petroleum Exploration and Development, 2005, 32(2):133-136.
[21]	庞进, 孙雷, 孙良田, 等. 注伴生富化气近混相多级接触驱替机理研究[J]. 西南石油大学学报(自然科学版), 2007, 29(1):88-91.
	PANG Jin, SUN Lei, SUN Liangtian, et al. The research on near miscible multi contact flooding mechanism of injecting associated rich gas[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2007, 29(1):88-91.
[22]	徐芊. 蒸发气驱与凝析气驱过程组分变化计算模拟及分析[J]. 油气地质与采收率, 2017, 24(4):99-104.
	XU Qian. Modeling and analysis of the change of the equilibrium compositions in vaporizing- and condensing-gas drive processes[J]. Petroleum Geology and Recovery Efficiency, 2017, 24(4):99-104.
[23]	刘晓军, 潘凌, 孙雷, 等. 低渗油藏注CO₂/N₂组合段塞改善驱油效率实验[J]. 西南石油大学学报(自然科学版), 2009, 31(4):73-78. doi: 10.3863/j.issn.1674-5086.2009.04.015
	LIU Xiaojun, PAN Ling, SUN Lei, et al. Enhancing oil-displacement efficiency experimental research of combination CO₂/N₂ slug injection in low permeability oil reservoir[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2009, 31(4):73-78.
[24]	韩海水, 袁士义, 李石, 等. 二氧化碳在链状烷烃中的溶解性能及膨胀效应[J]. 石油勘探与开发, 2015, 42(1):88-93.
	HAN Haishui, YUAN Shiyi, LI Shi, et al. Dissolving capacity and volume expansion of carbon dioxide in chain n-alkanes[J]. Petroleum Exploration and Development, 2015, 42(1):88-93.
[25]	韩波, 翟志伟, 于伟东, 等. 油藏CO₂驱过程中最小混相压力的动态变化及其影响因素分析[J]. 非常规油气, 2022, 9(1):98-104.
	HAN Bo, ZHAI Zhiwei, YU Weidong, et al. Dynamic analysis of minimum miscibility pressure during CO₂ flooding reservoirs and its influencing factors[J]. Unconventional Oil & Gas, 2022, 9(1):98-104.
[26]	沈平平, 黄磊. 二氧化碳-原油多相多组分渗流机理研究[J]. 石油学报, 2009, 30(2):247-251. doi: 10.7623/syxb200902015
	SHEN Pingping, HUANG Lei. Flow mechanisms of multi-phase multi-component CO₂-crude oil system in porous media[J]. Acta Petrolei Sinica, 2009, 30(2):247-251. doi: 10.7623/syxb200902015