Quantitative Characterization of Reservoir Changes Before and After Fire Flooding in Heavy Oil Reservoirs: A Case Study of Well Gao 3-6-18 in Liaohe Oilfield

doi:10.7657/XJPG20200513

Abstract

Abstract:

Fire flooding is one of the techniques for enhancing oil recovery in heavy oil reservoirs after steam stimulation. Reservoir is the fundamental factor influencing the effect of fire flooding, while temperature is the main factor affecting the changes of reservoirs during fire flooding. Taking the Well Gao 3-6-18 in Liaohe oilfield as an example, based on the physical simulation experiments and the samples obtained from different fire flooding stages, the change mechanism of reservoirs before and after fire flooding was analyzed, and the corresponding reservoir change patterns were established. The study shows that the physical properties of the reservoir in the coking zone are poor. The precipitates of Fe(OH)₃ and CaCO₃ and asphaltene sediments make the pore throats blocked. The clayization of the feldspar, accompanied with the forming of a large amount of siliceous cements, destroying the intergranular pores and the intragranular dissolved pores and leading the reduction of porosity and permeability. The reservoirs in the combustion zone and burned zone have better physical properties, in which the decomposition of precipitates of Fe(OH)₃ and CaCO₃ and the cracking of asphaltene sediments can enlarge the pore throats, the sintering of clay minerals makes kaolinite transform into montmorillonite and illite, along with the transformation of montmorillonite to illite, resulting in the volume contraction of intergranular interstitial materials dominated by clay minerals, and finally cracks occur between the particles and the interstitial materials. With the increase of temperature, the cracks become wider, the pore throats become bigger and the connectivity becomes better, then the reservoir porosity and permeability increase as well.

Key words: heavy oil reservoir, fire flooding, Well Gao 3-6-18, physical simulation, reservoir, physical property, coking zone, combustion zone, burned zone

CLC Number:

TE112.23

YAO Qian, HAN Denglin, WANG Chenchen, YANG Chengye, CHEN Qi. Quantitative Characterization of Reservoir Changes Before and After Fire Flooding in Heavy Oil Reservoirs: A Case Study of Well Gao 3-6-18 in Liaohe Oilfield[J]. Xinjiang Petroleum Geology, 2020, 41(5): 592-598.

Figures/Tables 6

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References 28

[1]	王元基, 何江川, 廖广志, 等. 国内火驱技术发展历程与应用前景[J]. 石油学报, 2012,33(5):909-914.
	WANG Yuanji, HE Jiangchuan, LIAO Guangzhi, et al. Overview on the development history of combustion drive and its application prospect in China[J]. Acta Petrolei Sinica, 2012,33(5):909-914.
[2]	何江川, 廖广志, 王正茂. 油田开发战略与接替技术[J]. 石油学报, 2012,33(3):519-525.
	HE Jiangchuan, LIAO Guangzhi, WANG Zhengmao. Oilfield development strategy and replacement techniques[J]. Acta Petrolei Sinica, 2012,33(3):519-525.
[3]	程宏杰, 廉桂辉, 毛小茵, 等. 火驱过程中储集层变化[J]. 特种油气藏, 2014,21(3):132-134.
	CHENG Hongjie, LIAN Guihui, MAO Xiaoyin, et al. Reservoir changes in the process of in-situ combustion[J]. Special Oil & Gas Reservoirs, 2014,21(3):132-134.
[4]	李家燕. 火驱过程中注气压力对储层岩石的影响[J]. 特种油气藏, 2017,24(1):148-152.
	LI Jiayan. Impacts of gas-injection pressures on reservoir rocks during fire flooding[J]. Special Oil & Gas Reservoirs, 2017,24(1):148-152.
[5]	梁金中, 王伯军, 关文龙, 等. 稠油油藏火烧油层吞吐技术与矿场试验[J]. 石油学报, 2017,38(3):324-332.
	LIANG Jinzhong, WANG Bojun, GUAN Wenlong, et al. Technology and field test of cyclic in situ combustion in heavy oil reservoir[J]. Acta Petrolei Sinica, 2017,38(3):324-332.
[6]	DONG Xiaohu, LIU Huiqing, PANG Zhanxi. Simulation modeling and kinetics for low-temperature oxidation of light crude oil[J]. Chemistry and Technology of Fuels and Oils, 2013,49(1) : 16-24. doi: 10.1007/s10553-013-0406-z
[7]	蒋海岩, 袁士宝, 李杨, 等. 稠油氧化阶段划分及活化能的确定[J]. 西南石油大学学报(自然科学版), 2016,38(4):136-142.
	JIANG Haiyan, YUAN Shibao, LI Yang, et al. Division of oxidation stage of heavy oil in the process of in-situ combustion[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2016,38(4):136-142.
[8]	LI Qiu, YI Leihao, TANG Junshi, et al. Mechanisms and influencing factors of the oil bank in fire flooding[J]. Petroleum Exploration and Development, 2018,45(3):491-498. doi: 10.1016/S1876-3804(18)30054-5
[9]	关文龙, 马德胜, 梁金中, 等. 火驱储层区带特征实验研究[J]. 石油学报, 2010,31(1):100-104.
	GUAN Wenlong, MA Desheng, LIANG Jinzhong, et al. Experimental research on thermodynamic characteristics of in-situ combustion zones in heavy oil reservoir[J]. Acta Petrolei Sinica, 2010,31(1):100-104.
[10]	叶华兴. 高3618块莲花油层精细油藏描述[D]. 黑龙江大庆:东北石油大学, 2015.
	YE Huaxing. Fine reservoir description research of high 3618 block Lianhua reservoir[D]. Daqing,Heilongjiang:Northeast Petroleum University, 2015.
[11]	刘其成, 郭彦臣, 刘志惠. 辽河油区稠油热采中储层变化实验研究[J]. 特种油气藏, 1999,6(3):54-58.
	LIU Qicheng, GUO Yanchen, LIU Zhihui. Experimental study on formation during thermal recovery in Liaohe oil province[J]. Special Oil & Gas Reservoirs, 1999,6(3):54-58.
[12]	于雪峰, 户昶昊. 稠油油藏蒸汽吞吐转火驱开发储层变化特征研究[J]. 当代化工, 2015,44(10):2 454-2 456.
	YU Xuefeng, HU Changhao. Research on characteristics of heavy oil reservoirs with fire-flooding after steam injection[J]. Contemporary Chemical Industry, 2015,44(10):2 454-2 456.
[13]	杨智, 廖静, 高成国, 等. 红浅1井区直井火驱燃烧区带特征[J]. 大庆石油地质与开发, 2019,38(1):89-93.
	YANG Zhi, LIAO Jing, GAO Chengguo, et al. Characteristics of the in-situ-combustion zone for the vertical well in Well Block HQ1[J]. Petroleum Geology & Oilfield Development in Daqing, 2019,38(1):89-93.
[14]	程海清. 火驱高温氧化特征判识方法研究[J]. 特种油气藏, 2018,25(3):135-139.
	CHENG Haiqing. High-temperature oxidation identification in fire-flooding[J]. Special Oil & Gas Reservoirs, 2018,25(3) : 135-139.
[15]	杨兴华. 低渗透油藏注水开发中粘土矿物的变化及作用分析[D]. 黑龙江大庆:大庆石油学院, 2008.
	YANG Xinghua. The analyse of the change and function of clay mineral in waterflood development in the low-permeability reservoir[D]. Daqing,Heilongjiang:Daqing Petroleum Institute, 2008.
[16]	韩宇富. 物质组成对页岩储层孔隙非均质性的影响研究:以W2井为例[D]. 江苏徐州:中国矿业大学, 2017.
	HAN Yufu. Study of effect on material composition for shale reservoir pore heterogeneity:a case study of W2 well[D]. Xuzhou,Jiangsu:China University of Mining and Technology, 2017.
[17]	许喆. 长石成岩过程中的热力学分析:以鄂尔多斯盆地上古生界为例[D]. 湖北荆州:长江大学, 2018.
	XU Zhe. Thermodynamic analysis of feldspar diagenesis in the Upper Paleozoic reservoir in Ordos basin[D]. Jingzhou,Hubei:Yangtze University, 2018.
[18]	黄思静, 黄可可, 冯文立, 等. 成岩过程中长石、高岭石、伊利石之间的物质交换与次生孔隙的形成:来自鄂尔多斯盆地上古生界和川西凹陷三叠系须家河组的研究[J]. 地球化学, 2009,38(5):498-506.
	HUANG Sijing, HUANG Keke, FENG Wenli, et al. Mass exchanges among feldspar,kaolinite and illite and their influences on secondary porosity formation in clastic diagenesis:a case study on the Upper Paleozoic,Ordos basin and Xujiahe formation,western Sichuan depression[J]. Geochimica, 2009,38(5):498-506.
[19]	张俊程, 李本仙, 孟杰, 等. 蒙脱石伊利石化的水热实验模拟[J]. 世界地质, 2018,37(1):316-326.
	ZHANG Juncheng, LI Benxian, MENG Jie, et al. Transformation of montmorillonite illitization based on hydrothermal experiments[J]. Global Geology, 2018,37(1):316-326.
[20]	张双源, 韩登林, 李峻颉, 等. 稠油蒸汽驱过程中储集层伤害模式分析——以辽河盆地西部凹陷齐40区块为例[J]. 科学技术与工程, 2017,17(12):39-44.
	ZHANG Shuangyuan, HAN Denglin, LI Junjie, et al. Research on reservoir damage model during the heavy oil steam flooding:an example from Qi40 block in western sags,Liaohe basin[J]. Science Technology and Engineering, 2017,17(12):39-44.
[21]	史海涛, 颜丹平, 荐鹏, 等. 火驱储层变化特征及受效层段确定[J]. 中国矿业, 2016,25(增刊1):366-369.
	SHI Haitao, YAN Danping, JIAN Peng, et al. Changes of reservoir and the judging method of the effective position in fire flooding[J]. China Mining Magazine, 2016,25(Supp.1):366-369.
[22]	师耀利, 吕世瑶, 施小荣, 等. 火驱油藏岩矿与原油演化特征[J]. 新疆石油地质, 2018,39(6):696-700.
	SHI Yaoli, LV Shiyao, SHI Xiaorong, et al. Evolution of rocks and crude oil in reservoirs during fire flooding[J]. Xinjiang Petroleum Geology, 2018,39(6):696-700.
[23]	王红涛, 刘大锰, 崔连训, 等. 稠油热采储层伤害及物性变化特征研究[J]. 钻采工艺, 2009,32(1):55-57.
	WANG Hongtao, LIU Dameng, CUI Lianxun, et al. Mechanisms of formation damage and characteristics of reservoir property variation of heavy oil thermal recovery[J]. Drilling & Production Technology, 2009,32(1):55-57.
[24]	党犇, 赵虹, 隗合明, 等. 稠油热采条件下沥青质沉积热模拟实验研究及影响因素分析:以辽河油田曙一区杜84块兴隆台油层稠油油藏为例[J]. 石油实验地质, 2003,25(3):305-309. doi: 10.11781/sysydz200303305
	DANG Ben, ZHAO Hong, KUI Heming, et al. Thermal simulation testing study and influence factor analysis of asphaltene precipitation in the condition of viscous oil thermal recovery:a case study of viscous oil pools in the Xinglongtai oil reservoirs of Du-84 block,Shuguang-1 district,Liaohe oilfield[J]. Petroleum Geology & Experiment, 2003,25(3):305-309.
[25]	YUAN Shibao, JIANG Haiyan, YANG Fengxiang, et al. Research on characteristics of fire flooding zones based on core analysis[J]. Journal of Petroleum Science and Engineering, 2018,170:607-610. doi: 10.1016/j.petrol.2018.07.014
[26]	刘雅丽, 何龙, 李忠权, 等. 岩矿在火驱条件下的物理化学变化[J]. 长江大学学报(自科版), 2015,12(2):20-23.
	LIU Yali, HE Long, LI Zhongquan, et al. The physical-chemical changes of rock mineral under in-situ combustion condition[J]. Journal of Yangtze University(Natural Science Edition), 2015,12(2):20-23.
[27]	未志杰, 康晓东, 何春百, 等. 海上多层稠油聚合物驱产液指数变化主控因素[J]. 新疆石油地质, 2018,39(5):578-584.
	WEI Zhijie, KANG Xiaodong, HE Chunbai, et al. Main controlling factors on liquid productivity index for polymer flooding in offshore multi-layered heavy oil reservoirs[J]. Xinjiang Petroleum Geology, 2018,39(5):578-584.
[28]	王行信. 砂岩储集层的粘土矿物研究[J]. 大庆石油地质与开发, 1991,10(3):21-26.
	WANG Xingxin. Clay minerals of sandstone reservoirs[J]. Petroleum Geology & Oilfield Development in Daqing, 1991,10(3):21-26.