不同含油饱和度对火驱效果影响实验研究

doi:10.13809/j.cnki.cn32-1825/te.2021.03.024

摘要/Abstract

摘要：

针对不同含油饱和度对火驱驱替过程及效果影响不明确的问题,利用火驱一维物模装置,探索了不同含油饱和度状态下的火驱可行性,开展了不同含油饱和度对火驱过程注气调整及生产效果影响的实验研究。实验结果表明,含油饱和度在15 %以上均能实现高温燃烧,但含油饱和度在15 %时原油全部转化为燃烧所需的燃料。火驱过程中含油饱和度越大,形成的油墙越大,造成的运移阻力越大,需要不断提高注气速度增加驱动力,造成模型压力随注气速度升高而增大。随着含油饱和度增加,驱油效率不断升高,空气油比则不断降低,表明生产效果越好。

关键词: 含油饱和度, 火驱, 注气速度, 压力, 驱油效率

Abstract:

In view of the unclear influence of different oil saturation on the process and effect of fire flooding, the feasibility of fire flooding under different oil saturation was explored by using one-dimensional physical model device of fire flooding, and the experimental study on the influence of different oil saturation on gas injection adjustment and production effect of fire flooding was carried out. The experimental results show that the high temperature combustion can be realized when the oil saturation is above 15 %, but at this time, all the crude oil is converted into fuel for combustion. In the process of fire flooding, the greater the oil saturation is, the greater the oil wall is, and the greater the migration resistance is. It is necessary to continuously improve the gas injection speed to increase the driving force, resulting in the increase of model pressure with the increase of gas injection speed. With the increase of oil saturation, the displacement efficiency increases and the gas oil ratio decreases, indicating that the better the production effect is.

Key words: oil saturation, fire flooding, gas injection rate, pressure, displacement efficiency

中图分类号:

TE357

王伟伟. 不同含油饱和度对火驱效果影响实验研究[J]. 油气藏评价与开发, 2021, 11(3): 465-468.

WANG Weiwei. Influence of different oil saturation on fire flooding[J]. Petroleum Reservoir Evaluation and Development, 2021, 11(3): 465-468.

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参考文献 20

[1]	任芳祥, 孙洪军, 户昶昊. 辽河油田稠油开发技术与实践[J]. 特种油气藏, 2012, 19(1):1-8.
	REN Fangxiang, SUN Hongjun, HU Changhao. Heavy oil development technology and practices in Liaohe Oilfield[J]. Special Oil & Gas Reservoirs, 2012, 19(1):1-8.
[2]	王弥康, 张毅, 黄善波, 等. 火烧油层热力采油[M]. 东营: 石油大学出版社, 1998:9-18.
	WANG Mikang, ZHANG Yi, HUANG Shanbo, et al. Thermal oil recovery from in situ combustion[M]. Dongying: Petroleum University Press, 1998:9-18.
[3]	张方礼. 火烧油层技术综述[J]. 特种油气藏, 2011, 18(6):1-5.
	ZHANG Fangli. An overview of in situ combustion technology[J]. Special Oil & Gas Reservoirs, 2011, 18(6):1-5.
[4]	张方礼, 刘其成, 刘宝良, 等. 稠油开发实验技术与应用[M]. 北京: 石油工业出版社, 2007:1-6.
	ZHANG Fangli, Liu Qicheng, LIU Baoliang, et al. Experimental technology and application of heavy oil development[M]. Beijing: Petroleum Industry Press, 2007:1-6.
[5]	潘伟义, 王友启, 张诗洋, 等. 晚期注水开发实验研究[J]. 油气地质与采收率, 2018, 25(3):122-126.
	PAN Weiyi, WANG Youqi, ZHANG Shiyang, et al. An experimental study on late water flooding[J]. Petroleum Geology and Recovery Efficiency, 2018, 25(3):122-126.
[6]	李洁, 李书光. 含油饱和度对纵波速度影响规律的实验研究[J]. 工程地球物理学报, 2012, 9(1):21-24.
	LI Jie, Li Shuguang. Experimental study of the effect of oil saturation on the P-wave velocity[J]. Chinese Journal of Engineering Geophysics, 2012, 9(1):21-24.
[7]	霍梦颖, 邵先杰, 武宁, 等. 浅薄层特超稠油开发后期蒸汽驱注采参数优化[J]. 重庆科技学院学报(自然科学版), 2017, 19(5):35-39.
	HUO Mengying, SHAO Xianjie, WU Ning, et al. Optimization of steam flooding injection production parameters in late stage of shallow thin layer super heavy oil development[J]. Journal of Chongqing University of Science and Technology (Natural Sciences Edition), 2017, 19(5):35-39.
[8]	刘薇薇, 刘永建, 胡绍彬. 泡沫辅助蒸汽驱提高采收率实验[J]. 大庆石油地质与开发, 2013, 32(2):110-113.
	LIU Weiwei, LIU Yongjian, HU Shaobin. Experiment of improving oil recovery by foam assisted steam flooding[J]. Petroleum Geology and Oilfield Development in Daqing, 2013, 32(2):110-113.
[9]	曹绪龙, 马汉卿, 赵修太, 等. 不同含油饱和度时泡沫的稳定性及调驱机理研究[J]. 科学技术与工程, 2016, 16(5):66-70.
	CAO Xulong, MA Hanqing, ZHAO Xiutai, et al. Foam stability and mechanism on profile control under different oil saturation[J]. Science Technology and Engineering, 2016, 16(5):66-70.
[10]	王伟伟. 火驱油墙技术界限判定及运移特征[J]. 特种油气藏, 2019, 26(4):131-135.
	WANG Weiwei. Technical boundary determination and propagation pattern of fire flooding oil wall[J]. Special Oil & Gas Reservoirs, 2019, 26(4):131-135.
[11]	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.
[12]	关文龙, 张霞林, 席长丰, 等. 稠油老区直井火驱驱替特征与井网模式选择[J]. 石油学报, 2017, 38(8):935-972.
	GUAN Wenlong, ZHANG Xialin, Xi Changfeng, et al. Displacement characteristics and well pattern selection of vertical well fire flooding in heavy oil reservoirs[J]. Acta Petrolei Sinica, 2017, 38(8):935-972.
[13]	程海清, 赵庆辉, 刘宝良, 等. 超稠油燃烧基础参数特征研究[J]. 特种油气藏, 2012, 19(4):107-110.
	CHENG Haiqing, ZHAO Qinghui, LIU Baoliang, et al. Physical simulation research on basic parameters of in-situ combustion for super heavy oil reservoirs[J]. Special Oil & Gas Reservoirs, 2012, 19(4):107-110.
[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. Study on identification method of high temperature oxidation characteristics of fire flooding[J]. Special Oil & Gas Reservoirs, 2018, 25(3):135-139.
[15]	张方礼, 赵庆辉, 闫红星, 等. 指纹分析技术在火驱燃烧状态识别中的应用[J]. 特种油气藏, 2015, 22(6):80-84.
	ZHNAG Fangli, ZHAO Qinghui, YAN Hongxing, et al. Application of signature analysis technique in identification of fire flood combustion state[J]. Special Oil & Gas Reservoirs, 2015, 22(6):80-84.
[16]	袁士宝, 蒋海岩, 王丽, 等. 稠油油藏蒸汽吞吐后转火烧油层适应性研究[J]. 新疆石油地质, 2013, 34(3):303-306.
	YUAN Shibao, JIANG Haiyan, WANG Li, et al. Research on adaptability to in-situ combustion in heavy oil reservoir after steam huff and puff[J]. Xinjiang Petroleum Geology, 2013, 34 (3):303-306.
[17]	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 & Development in Daqing, 2019, 38(1):89-93.
[18]	龚姚进. 厚层块状稠油油藏平面火驱技术研究与实践[J]. 特种油气藏, 2012, 19(3):58-62.
	GONG Yaojin. Technical research and practice of areal fire flooding for thick massive heavy oil reservoirs[J]. Special Oil & Gas Reservoirs, 2012, 19(3):58-62.
[19]	孙洪军, 程海清, 宋扬. 火驱尾气CO ₂含量与燃烧状态对应关系研究 [J]. 特种油气藏, 2019, 26(5):76-80.
	SUN Hongjun, Cheng Haiqing, SONG Yang. Relationship between CO ₂ content of tail gas and combustion state in fire flooding [J]. Special Oil & Gas Reservoirs, 2019, 26(5):76-80.
[20]	袁士宝, 宁奎, 蒋海岩, 等. 火驱燃烧状态判定试验[J]. 中国石油大学学报(自然科学版), 2012, 36(5):114-118.
	YUAN Shibao, NING Kui, JIANG Haiyan, et al. Experiments of judging combustion state of in situ combustion[J]. Journal of China University of Petroleum(Edition of Natural Science), 2012, 36(5):114-118.

含油饱和度（%）	尾气组分含量（%）				评价指标
含油饱和度（%）	O₂	CO	CO₂	N₂	视HC比	O₂利用率（%）	O₂转化率（%）
15	2.03	1.24	13.19	81.02	1.75	90.57	70.80
20	1.86	1.15	14.13	82.25	1.41	91.50	73.50
30	1.57	1.01	13.54	82.68	1.82	92.88	68.81
60	1.59	0.64	14.36	82.52	1.56	92.75	72.13

含油饱和度（%）	驱油效率（%）	空气油比（m³/t）
15	<2
20	20.87	25 018
30	46.97	7 429
60	74.47	2 371