稠油注气二次泡沫油形成机理及数值模拟

doi:10.11743/ogg20170220

Abstract

Abstract: The paper attempted to propose a new method of improving later stage performance of cold production from heavy oil reservoirs in respect of forming secondary foamy oil through gas injection.A foamy oil unconventional swelling experiment was designed and carried out to verify the feasibility of generating secondary foamy oil by gas injection and reveal its mechanism of enhancing oil recovery.And then based on the experiment,a sandpack experiment was performed to study the formation of foamy oil during natural gas huffs and puffs,and continuous and intermittent gas flooding processes.The possibility of establishing a numerical model with gas injection characteristics of foamy oil reservoirs incorporated was explored so as to serve for simulating the mechanism of foamy oil formation and later evaluation of EOR results of secondary foamy oil with different ways of gas injection in fields.The results showed that gas injection formed secondary foamy oil with better EOR results in that the oil facilitated the volume expansion,viscosity reduction and light component increase in heavy crude.Compared with natural depletion,the natural gas huff and puff process,with a rich foamy oil fluid generated,was 7.24% higher in terms of recovery percent of reserves;but the continuous and intermittent gas injection processes yielded negative result as they weakened or totally destroyed the foamy oil.Numerical modeling also indicated that the natural gas huff and puff performed better with a cumulative oil production increased by 14.7% after 8 rounds of huff and puff processes in 12 wells;while the continuous and intermittent gas injections as well as edge gas injection were unable to generate secondary foamy oil fluids because of massive gas channeling.

Key words: gas flooding, natural gas huff and puff, foamy oil, heavy oil, reservoir numerical model, EOR

CLC Number:

TE348

Sun Xiaofei, Zhang Yanyu, Duan Xuewei, Zhao Chunyan, Li Xingmin. A study on mechanisms and numerical simulation of secondary foamy oil by gas injection in heavy oil reservoirs[J]. Oil & Gas Geology, 2017, 38(2): 391-399.

References

[1] Li S,Li Z,Lu T,et al.Experimental study on foamy oil flow in porous media with Orinoco Belt Heavy Oil[J].Energy & Fuels,2012,26(10),6332-6342.
[2] 计秉玉.国内外油田提高采收率技术进展与展望[J].石油与天然气地质,2012,33(1):111-117. Ji Bingyu.Progress and prospects of enhanced oil recovery technologies at home and abroad[J].Oil& Gas Geology,2012,33(1):111-117.
[3] 宋传真,刘传喜,徐婷,等.低渗孔隙型碳酸盐岩稠油油藏开发对策——以叙利亚O油田为例[J].石油与天然气地质,2015,36(2):298-305. Song Chuanzhen,Liu Chuanxi,Xu Ting,et al.Development strategies for low-permeability carbonate heavy oil reservoirs:A case study from O oilfield in Syria[J].Oil & Gas Geology,2015,36(2):298-305.
[4] Tang G Q,Sahni A,Gadelle F,et al.Heavy-oil solution gas drive in consolidated and unconsolidated rock[J].SPE Journal,2006,11(2):259-268.
[5] Liu Y,Wan R,Jian Z.Effects of foamy oil and geomechanics on cold production[J].Journal of Canadian Petroleum Technology,2008,47(4):1-7.
[6] 陈兴隆,秦积舜.泡沫油运动形态的可视化研究[J].西南石油大学学报(自然科学版),2009,31(6):126-130. Chen Xinglong,Qin Jishun.Visualization study on foamy oil flow state[J].Journal of Southwest Petroleum University(Science & Technology Edition),2009,31(6):126-130.
[7] Sun X,Zhang Y,Duan X,et al.Diffusion coefficients of natural gas in foamy oil system under high pressures[J].Petroleum Science,2015,12(2):293-303.
[8] 王伯军,吴永彬,蒋有伟,等.泡沫油PVT性质实验[J].石油学报,2012,33(1):96-100. Wang Bojun,Wu Yongbin,Jiang Youwei,et al.Physical simulation experiments on PVT properties of foamy oil[J].Acta Petrolei Sinica,2012,33(1):96-100.
[9] Kumar R,Pooladi D M.Effect of viscosity and diffusion coefficient on the kinetics of bubble growth in solution-gas drive in heavy oil[J].Journal of Canadian Petroleum Technology,2001,40(3):1-8.
[10] Y M Bayon,Ph R Cordelier,A Nectoux.A new methodology to match heavy-oil long-core primary depletion experiments[C]//SPE 75133,presented at the SPE/DOE Improved Oil Recovery Symposium held in Tulsa,Oklahoma U.S.A.,2002,4:13-17.
[11] 吴永彬,李晓玲,赵欣,等.泡沫油稳定性主控因素实验研究[J].现代地质,2012,26(1):184-189 Wu Yongbin,Li Xiaoling,Zhao Xin,et al.Experimental study on controlling factors of foamy oil stability[J].Geoscience,2012,26(1):184-189.
[12] 穆龙新,韩国庆,徐宝军.委内瑞拉奥里诺科重油带地质与油气资源储量[J].石油勘探与开发,2009,36(6):784-789. Mu Longxin,Han Guoqing,Xu Baojun,et al.Geology and reserve of the Orinoco heavy oil belt,Venezuela[J].Petroleum Exploration and Development,2009,36(6):784-789.
[13] 穆龙新.委内瑞拉奥里诺科重油带开发现状与特点[J].石油勘探与开发,2010,37(3):338-343. Mu Longxin.Development actualities and characteristics of the Orinoco heavy oil belt,Venezuela[J].Petroleum Exploration and Development,2010,37(3):338-343.
[14] 张宇焜,王晖,胡晓庆,等.少井条件下的复杂岩性储层地质建模技术——以渤海湾盆地石臼坨凸起A油田为例[J].石油与天然气地质,2016,37(2):450-456. Zhang Yukun,Wang Hui,Hu Xiaoqing,et al.Reservoir modeling of complex lithologies with sparse wells:A case from A oilfield in Shijiutuo uplift,Bohai Bay Basin[J].Oil & Gas Geology,2016,37(2):450-456.
[15] 孙晓飞,张艳玉,李星民,等.基于试验拟合的泡沫油油藏模拟模型评价及渗流机理研究[J].中国石油大学(自然科学版),2013,37(4):1-5. Sun Xiaofei,Zhang Yanyu,Li Xingmin,et al.Simulation model evaluation in foamy oil reservoir and percolation mechanism study based on experimental matching.Journal of China University of Petroleum(Edition of natural sciences),2013,37(4):1-5.
[16] 秦积舜,陈兴隆.油藏条件下泡沫油的油气相渗规律研究[J].西安石油大学学报(自然科学版),2007,22(2):116-118. Qin Jishun,Chen Xinglong.Study on foam oil and gas relative permeability under reservoir conditions[J].Journal of Xi'an Shiyou University(Natural Science Edition),2007,22(2):116-118.
[17] Shahvali M,Pooladi D M.Dynamic modeling of solution-gas drive in heavy oils[J].Journal of Canadian Petroleum Technology,2009,48(12):39-44.
[18] 孙晓飞,张艳玉,张贤松,等.泡沫油注气吞吐参数影响规律实验分析[J].重庆大学学报(自然科学版),2013,36(11):115-120. Sun Xiaofei,Zhang Yanyu,Zhang Xiansong,et al.Experiments analysis on the influence induced by parameters of nature gas huff and puff in foamy oil reservoir[J].Journal of Chongqing University,2013,36(11):115-120.
[19] 张本艳,党文斌,王少朋,等.鄂尔多斯盆地红河油田长8储层致密砂岩油藏注CO₂提高采收率.[J].石油与天然气地质,2016,37(2):272-275. Zhang Benyan,Dang Wenbin,Wang Shaopeng,et al.CO₂-EOR in Chang 8 tight sandstone reservoir of Honghe oilfield in Ordos Basin.[J].Oil & Gas Geology,2016,37(2):272-275.

A study on mechanisms and numerical simulation of secondary foamy oil by gas injection in heavy oil reservoirs

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

[1]	Bingyu Ji, Youqi Wang, Li Zhang. Research on overall recovery rate variations of dynamically changing OOIP [J]. Oil & Gas Geology, 2020, 41(6): 1257-1262.
[2]	Huanquan Sun. Hybrid thermal chemical recovery of thin extra-heavy oil reservoirs [J]. Oil & Gas Geology, 2020, 41(5): 1100-1106.
[3]	Xixian Wang. Characteristics and hydrocarbon accumulation pattern of heavy oil reservoir of fracture-pore limestone in EBANO oilfield, Mexico [J]. Oil & Gas Geology, 2020, 41(2): 416-422.
[4]	Zhijiang Kang, Yang Li, Bingyu Ji, Yun Zhang. Key technologies for EOR in fractured-vuggy carbonate reservoirs [J]. Oil & Gas Geology, 2020, 41(2): 434-441.
[5]	Shi Juye, Jin Zhijun, Liu Quanyou, Huang Zhenkai, Zhang Rui. Quantitative classification of high-frequency sequences in fine-grained lacustrine sedimentary rocks based on Milankovitch theory [J]. Oil & Gas Geology, 2019, 40(6): 1205-1214.
[6]	Zhao Qingmin, Lun Zengmin, Zhang Xiaoqing, Lang Dongjiang, Wang Haitao. Mechanism of shale oil mobilization under CO₂ injection [J]. Oil & Gas Geology, 2019, 40(6): 1333-1338.
[7]	Liu Yukun, He Sheng, He Zhiliang, Zhang Dianwei, Li Tianyi, Wang Xiaolong, Guo Xiaowen. The rock physics modeling experiment under overpressure and theoretical model for overpressure prediction in carbonate rocks [J]. Oil & Gas Geology, 2019, 40(4): 716-724.
[8]	Tang Guomin, Wang Feilong, Wang Qingbin, Wan Lin, Yan Ge. Genesis and accumulation models of sulfur-rich heavy oil in Laizhou Bay Sag,Bohai Sea [J]. Oil & Gas Geology, 2019, 40(2): 284-293.
[9]	Hu Bo. Advances in numerical simulation technology of chemical flooding in high temperature and high salinity reservoir [J]. Oil & Gas Geology, 2018, 39(6): 1305-1310.
[10]	Wu Zhongwei, Cui Chuanzhi, Yang Yong, Huang Yingsong, Liu Zhihong. Seepage characteristics and quantitative description of large pore pathways at high water cut stage [J]. Oil & Gas Geology, 2018, 39(4): 839-844.
[11]	Liu Fang, Liu Xingquan, Liu Zongbao, Guan Xianli, Zhang Yunfeng, Liu Yunyan. Hydrocarbon accumulation analysis of tight sandstone based on reservoir architecture theory-A case from Putaohua reservoir in the Gulong syncline,Songliao Basin [J]. Oil & Gas Geology, 2018, 39(2): 268-278.
[12]	Fu Jingang, Du Dianfa, Zheng Yang, Ba Zhongchen, Li Dongdong. Dynamic prediction model of steam flooding in extra heavy oil reservoirs [J]. Oil & Gas Geology, 2018, 39(1): 192-197.
[13]	Gao Wenjun, Xu Bingtao, Huang Yu, Li Junzhi, Ou Cuirong. Research on and development of prediction method of water cut in water flooding oilfield [J]. Oil & Gas Geology, 2017, 38(5): 993-999.
[14]	Zhang Shuxia, Liu Fan, Mu Baoquan. An experimental study on enhanced heavy oil recovery by steam flooding and chemical assisted steam flooding [J]. Oil & Gas Geology, 2017, 38(5): 1000-1004.
[15]	Lu Xinbian, Rong Yuanshuai, Li Xiaobo, Wu Feng. Construction of injection-production well pattern in fractured-vuggy carbonate reservoir and its development significance:A case study from Tahe oilfield in Tarim Basin [J]. Oil & Gas Geology, 2017, 38(4): 658-664.