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

doi:10.7657/XJPG20210508

摘要/Abstract

摘要：

与常规的注气方式相比,注气辅助重力驱具有抑制气窜,扩大波及体积的优势。通过静态低温氧化实验,研究减氧空气辅助重力驱在青海油田尕斯库勒E¹₃油藏的适应性;利用天然全直径岩心开展减氧空气辅助重力驱实验,分析了氧气体积分数、注气速度和倾角对减氧空气辅助重力驱的影响规律。结果表明,低氧气体积分数（5%）减氧空气在尕斯库勒E¹₃油藏具有较为明显的低温氧化作用,耗氧速率可以达到2.19 mol/(h·mL)。对于减氧空气辅助重力驱而言,尕斯库勒E¹₃油藏条件下,增大注入气氧气体积分数,最终采收率提高,岩心实验采收率增幅为1.2%~6.9%。从采收率与安全角度考虑,尕斯库勒E¹₃油藏可以选择氧气体积分数略低于10%的减氧空气作为驱替介质。注气速度大于1.0 mL/min时易发生黏性指进;而小于0.1 mL/min时易导致毛细管滞留,采收率较低;当注气速度为0.3 mL/min时,为油气稳定驱,采收率较高。减氧空气辅助重力驱过程对重力作用较为敏感,对于倾角较小的油藏,减氧空气辅助重力驱具有一定的可行性。影响尕斯库勒E¹₃油藏减氧空气辅助重力驱的因素敏感性排序依次为注气速度、倾角和氧气体积分数。

关键词: 青海油田, 尕斯库勒, 减氧空气辅助重力驱, 全直径岩心, 物理模拟, 低温氧化, 注气速度, 氧气体积分数

Abstract:

Compared with conventional gas injection methods, the gas-injection assisted gravity drainage has the advantages of restraining gas channeling and expanding swept volume. In this study, a static low-temperature oxidation experiment was conducted to investigate the adaptability of the oxygen-reducing air-assisted gravity drainage in the Gasikule E¹₃ reservoir. Oxygen-reducing air-assisted gravity drainage experiment was carried out with the help of natural full-diameter long core, so as to study the influences of oxygen volume fraction, gas injection rate and core inclination angle on the oxygen-reducing air-assisted gravity drainage. The results show that the oxygen-reducing air with low oxygen volume fraction (5%) plays a significant role in low-temperature oxidation in the Gasikule E¹₃ reservoir, and the oxygen consumption rate can reach 2.19 mol/(h·mL). For the oxygen-reducing air-assisted gravity drainage, under the conditions of the Gasikule E¹₃ reservoir, the ultimate recovery increases with an increased oxygen volume fraction of the injected air. The incremental recovery factor of the core experiment ranges from 1.2% to 6.9%. From the perspective of recovery ratio and safety, oxygen-reducing air with the oxygen volume fraction slightly lower than 10% can be applied as the displacement medium. Viscous fingering may occur when the gas injection rate is more than 1.0 mL/min, while capillary retention may occur when the oxygen injection rate is less than 0.1 mL/min, resulting in relatively low recovery factor. When the gas injection rate is 0.3 mL/min, it is a stable oil and gas flooding with a higher recovery factor. The process of the oxygen-reducing air-assisted gravity drainage is relatively sensitive to gravity. For the reservoirs with small inclination angles, the oxygen-reducing air-assisted gravity drainage is still feasible to some extent. The factors that affect the oxygen-reducing air-assisted gravity drainage in the Gasikule E¹₃ reservoir are gas injection rate, core inclination angle and oxygen volume fraction in sequence according to their sensitivities.

Key words: Qinghai oilfield, Gasikule, oxygen-reducing air-assisted gravity drainage, full-diameter core, physical simulation, low-temperature oxidation, gas injection rate, oxygen volume fraction

中图分类号:

TE357.46

龙安林, 祁青山, 陈小龙, 李宜强, 鲁珊珊, 张佩, 李信. 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, LI Yiqiang, LU Shanshan, ZHANG Pei, LI Xin. 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.

图/表 9

表1

图1

图2

图3

图4

图5

参考文献 22

[1]	侯吉瑞, 吴晨宇, 赵凤兰, 等. 高温高盐油藏复合驱体系优选及性能评价[J]. 大庆石油地质与开发, 2014, 33(2):121-126.
	HOU Jirui, WU Chenyu, ZHAO Fenglan, et al. Optimization and performance evaluation of the complex flooding systems for high-temperature and high-salinity oil reservoir[J]. Petroleum Geology & Oilfield Development in Daqing, 2014, 33(2):121-126.
[2]	HAGOORT J. Oil recovery by gravity drainage[J]. Society of Petroleum Engineers Journal, 1980, 20(3):139-150. doi: 10.2118/7424-PA
[3]	WU K, LI X, WANG X, et al. Predicting the method of oil recovery in the gas-assisted gravity drainage process[J]. Petroleum Science and Technology, 2013, 31(23):2 527-2 533. doi: 10.1080/10916466.2011.576372
[4]	钱坤, 杨胜来, 窦洪恩, 等. 特低渗油藏不同CO₂注入方式微观驱油特征[J]. 新疆石油地质, 2020, 41(2):204-208.
	QIAN Kun, YANG Shenglai, DOU Hong’en, et al. Microscopic characteristics of oil displacement with different CO₂ injection modes in extra-low permeability reservoirs[J]. Xinjiang Petroleum Geology, 2020, 41(2):204-208.
[5]	许正恩, 辛文明, 刘誉, 等. 高凝油油藏CO₂驱转水气交替驱动态及储层伤害特征[J]. 断块油气田, 2019, 26(5):613-616.
	XU Zheng’en, XIN Wenming, LIU Yu, et al. Production performance and reservoir damage characteristics of CO₂ water-alternating-gas injection after continuous CO₂ injection for high pour-point reservoir[J]. Fault-Block Oil & Gas Field, 2019, 26(5):613-616.
[6]	彭小强, 韩晓强, 杨洋, 等. 水平井火驱辅助重力泄油燃烧状态及燃烧前缘预测[J]. 新疆石油地质, 2020, 41(2):199-203.
	PENG Xiaoqiang, HAN Xiaoqiang, YANG Yang, et al. Combustion state and burning front prediction during combustion assisted gravity drainage process in horizonal wells[J]. Xinjiang Petroleum Geology, 2020, 41(2):199-203.
[7]	王睿思, 曾庆桥, 黄埔, 等. 潜山油藏注气重力驱高精度数值模拟[J]. 新疆石油地质, 2020, 41(2):180-187.
	WANG Ruisi, ZENG Qingqiao, HUANG Pu, et al. High-resolution numerical simulation for gas injection gravity drainage in buried-hill reservoirs[J]. Xinjiang Petroleum Geology, 2020, 41(2):180-187.
[8]	高能, 赵健, 何嘉. 减氧空气吞吐技术在鲁克沁深层稠油油藏的应用[J]. 新疆石油地质 2020, 41(6):748-752.
	GAO Neng, ZHAO Jian, HE Jia. Application of hypoxic air huff and puff technology in deep heavy oil reservoirs in Lukeqin oilfield[J]. Xinjiang Petroleum Geology, 2020, 41(6):748-752.
[9]	王敬, 姬泽敏, 刘慧卿, 等. 裂缝-孔洞型储集层注氮气辅助重力泄油实验[J]. 石油勘探与开发, 2019, 46(2):342-353.
	WANG Jing, JI Zemin, LIU Huiqing, et al. Experiments on nitrogen assisted gravity drainage in fractured-vuggy reservoirs[J]. Petroleum Exploration and Development, 2019, 46(2):342-353.
[10]	陈小龙, 李宜强, 管错, 等. 基于量纲分析的优化神经网络模型预测GAGD非混相开发油藏采收率[J]. 石油科学通报, 2019, 4(3):288-299.
	CHEN Xiaolong, LI Yiqiang, GUAN Cuo, et al. An optimized neural network prediction model for gas assisted gravity drainage recovery based on dimensional analysis[J]. Petroleum Science Bulletin, 2019, 4(3):288-299.
[11]	REZAVEISI M, ROSTAMI B, KHARRAT R, et al. Experimental investigation of Tertiary oil gravity drainage in fractured porous media[J]. Special Topics and Reviews in Porous Media, 2010, 1(2):179-191. doi: 10.1615/SpecialTopicsRevPorousMedia.v1.i2
[12]	ZHAO Shuai, PU Wanfen, VARFOLOMEEV M A, et al. Comprehensive investigations into low temperature oxidation of heavy crude oil[J]. Journal of Petroleum Science and Engineering, 2018, 171:835-842. doi: 10.1016/j.petrol.2018.08.027
[13]	任韶然, 刘延民, 张亮, 等. 重力稳定气驱判别模型和试验[J]. 中国石油大学学报(自然科学版), 2018, 42(4):59-66.
	REN Shaoran, LIU Yanmin, ZHANG Liang, et al. Gravity assisted gas injection:assessment model and experimental study[J]. Journal of China University of Petroleum(Edition of Natural Science), 2018, 42(4):59-66.
[14]	冷振鹏, 吕伟峰, 马德胜, 等. 利用CT技术研究重力稳定注气提高采收率机理[J]. 石油学报, 2013, 34(2):340-345.
	LENG Zhenpeng, LV Weifeng, MA Desheng, et al. Research of enhancing oil recovery mechanism of GAGD using CT scanning method[J]. Acta Petrolei Sinica, 2013, 34(2):340-345.
[15]	YUAN Chengdong, PU Wanfen, JIN Fayang, et al. Characterizing the fuel deposition process of crude oil oxidation in air injection[J]. Energy Fuels, 2015, 29(11):7 622-7 629. doi: 10.1021/acs.energyfuels.5b01493
[16]	WANG Tengfei, YANG Weipeng, WANG Jiexiang, et al. Low temperature oxidation of crude oil:reaction progress and catalytic mechanism of metallic salts[J]. Fuel, 2018, 225:336-342. doi: 10.1016/j.fuel.2018.03.131
[17]	ZHAO Renbao, WEI Yiguang, WANG Zhengmao, et al. Kinetics of low-temperature oxidation of light crude oil[J]. Energy & Fuels, 2016, 30(4):2 647-2 654. doi: 10.1021/acs.energyfuels.5b02832
[18]	蒋有伟, 张义堂, 刘尚奇, 等. 低渗透油藏注空气开发驱油机理[J]. 石油勘探与开发, 2010, 37(4):471-476.
	JIANG Youwei, ZHANG Yitang, LIU Shangqi, et al. Displacement mechanisms of air injection in low permeability reservoirs[J]. Petroleum Exploration and Development, 2010, 37(4):471-476.
[19]	MOORE R G, LAURESHEN C J, BELGRAVE J D M, et al. In situ combustion in Canadian heavy oil reservoirs[J]. Fuel, 1995, 74(8):1 169-1 175. doi: 10.1016/0016-2361(95)00063-B
[20]	陈小龙, 李宜强, 廖广志, 等. 减氧空气重力稳定驱驱替机理及与采收率的关系[J]. 石油勘探与开发, 2020, 47(4):780-788.
	CHEN Xiaolong, LI Yiqiang, LIAO Guangzhi, et al. Experimental investigation on stable displacement mechanism and oil recovery enhancement of oxygen-reduced air assisted gravity drainage[J]. Petroleum Exploration and Development, 2020, 47(4):780-788.
[21]	FARAHI M M M, RASAEI M R, ROSTAMI B, et al. Scaling analysis and modeling of immiscible forced gravity drainage process[J]. Journal of Energy Resources Technology, 2014, 136(2):8.
[22]	刘思峰, 蔡华, 杨英杰, 等. 灰色关联分析模型研究进展[J]. 系统工程理论与实践, 2013, 33(8):2 041-2 046.
	LIU Sifeng, CAI Hua, YANG Yingjie, et al. Advance in grey incidence analysis modelling[J]. Systems Engineering:Theory & Practice, 2013, 33(8):2 041-2 046.

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

Full-Diameter Physical Simulation of Oxygen-Reducing Air Assisted Gravity Drainage: A Case Study of Gasikule E¹₃ Reservoir in Qinghai Oilfield

RichHTML

PDF

可视化

摘要/Abstract

引用本文

使用本文

图/表 9

参考文献 22

相关文章 15

编辑推荐

Metrics

本文评价

实验因素	实验编号	氧气体积分数/%	注气速度/ （mL·min^-1）	倾角/ （°）
氧气体积分数	1	0	0.1	87
	2	5
	3	10
	4	15
注气速度	5	10	0.1	87
	6		0.3
	7		1.0
倾角	8	10	0.3	0
	9			10
	10			20
	11			45
	12			90

[1]	朱永贤, 姚帅旗, 张彦斌, 韩继凡, 赵瑞明. 稀油油藏密闭取心流体饱和度校正方法[J]. 新疆石油地质, 2023, 44(3): 359-364.
[2]	代兰, 邬光辉, 陈鑫, 朱永峰, 陈思锜, 罗鑫, 胡明. 共轭走滑断裂形成演化的控制因素及物理模拟实验[J]. 新疆石油地质, 2023, 44(1): 43-50.
[3]	白振强, 王清华, 宋文波. 基于核磁共振的天然气驱储集层孔喉动用下限[J]. 新疆石油地质, 2023, 44(1): 58-63.
[4]	邱浩, 文敏, 吴怡, 幸雪松, 马楠, 李占东, 郭天姿. 南海油田惠州潜山裂缝性凝析油气藏控水实验[J]. 新疆石油地质, 2023, 44(1): 84-92.
[5]	岳宝林, 祝晓林, 刘斌, 陈存良, 王双龙. 气顶边水窄油环油藏开采中后期开发方式[J]. 新疆石油地质, 2022, 43(1): 102-106.
[6]	魏学斌, 沙威, 沈晓双, 司丹, 张国卿, 任世霞, 杨梅. 柴达木盆地油气勘探历程与启示[J]. 新疆石油地质, 2021, 42(3): 302-311.
[7]	姚倩, 韩登林, 王晨晨, 杨铖晔, 陈奇. 稠油油藏火驱前后储集层变化定量表征——以辽河油田高3-6-18井为例[J]. 新疆石油地质, 2020, 41(5): 592-598.
[8]	张明玉, 孔垂显, 齐洪岩, 李亮, 周阳, 苏静, 蒋庆平. 基于核磁共振实验的火山岩气藏原始含气饱和度分析[J]. 新疆石油地质, 2020, 41(3): 288-294.
[9]	彭小强, 韩晓强, 杨洋, 张继周, 徐景润. 水平井火驱辅助重力泄油燃烧状态及燃烧前缘预测[J]. 新疆石油地质, 2020, 41(2): 199-203.
[10]	张希晨, 马德龙, 魏凌云, 王宏斌, 王彦君, 刘文强, 杨秀磊. 准噶尔盆地南缘呼图壁背斜变形机理物理模拟实验[J]. 新疆石油地质, 2020, 41(1): 120-126.
[11]	冯翠菊1a，王春生1b，张蓉2，盛寒3. 稠油重力泄水辅助蒸汽驱三维物理模拟实验[J]. , 2019, 40(4): 1-1.
[12]	唐勇1，尹太举2，覃建华1，王冬冬2. 大型浅水扇三角洲发育的沉积物理模拟实验研究[J]. , 2017, 38(3): 1-1.
[13]	马德胜1，郭嘉2，李秀峦1，昝成1，史琳2. 浅薄层超稠油油藏蒸汽吞吐后开发方式实验[J]. , 2013, 34(4): 1-1.
[14]	杨磊, 綦耀光, 任旭虎, 刘新福, 孙志信. 正断层形成机理及其对断层泥的控制作用[J]. 新疆石油地质, 2011, 32(2): 137-140.
[15]	王力, 金强, 彭德华. 尕斯库勒油田原油成因类型与油源分析[J]. 新疆石油地质, 2008, 29(1): 22-25.