低渗透油藏空气驱氧化特征及驱油效果评价

骆晨; 刘慧卿; 柏宗宪; 王转转; 王亮亮; 张雅倩

doi:10.3969/j.issn.1006-6535.2024.04.014

特种油气藏 >

2024 , Vol. 31 >Issue 4: 109 - 117

DOI: https://doi.org/10.3969/j.issn.1006-6535.2024.04.014

油藏工程

低渗透油藏空气驱氧化特征及驱油效果评价

骆晨 ,
刘慧卿 ,
柏宗宪 ,
王转转 ,
王亮亮 ,
张雅倩

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1.中国石油大学(北京),北京 102249;
2.中国石油冀东油田分公司,河北唐山 063004;
3.中国石油青海油田分公司,甘肃敦煌 736202;
4.中国石油大学(华东),山东青岛 266580

骆晨(1995—),男,2018年毕业于长江大学工程技术学院石油工程专业,现为中国石油大学(北京)石油与天然气工程专业在读博士研究生,主要从事油气田开发方向相关研究工作。

收稿日期: 2023-10-17

修回日期: 2024-05-19

网络出版日期: 2024-09-20

基金资助

国家自然科学基金企业创新发展联合基金“难采稠油多元热复合高效开发机理与关键技术基础研究”(U20B6003);中国石油大学(华东)研究生创新基金“油页岩空气/CO₂交替注入原位燃烧催化改质机理及相间反应-传质规律研究”(23CX04050A)

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Oxidation Characteristics and Oil Displacement Effect Evaluation of Air Flooding in Low Permeability Reservoirs

Luo Chen ,
Liu Huiqing ,
Bai Zongxian ,
Wang Zhuanzhuan ,
Wang Liangliang ,
Zhang Yaqian

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1. China University of Petroleum,Beijing 102249,China;
2. PetroChina Jidong Oilfield Company,Tangshan,Hebei 063004,China;
3. PetroChina Qinghai Oilfield Company,Dunhuang, Gansu 736202,China;
4. China University of Petroleum (East China),Qingdao,Shandong 266580,China

Received date: 2023-10-17

Revised date: 2024-05-19

Online published: 2024-09-20

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摘要

针对低渗透油藏高压注空气开发过程中原油氧化机理不明确和增油潜力预测难的问题,开展低温氧化实验和长岩心注空气驱物理模拟实验,分析不同油藏条件下氧化反应前后油气组分变化差异,揭示原油低温氧化反应特征和规律,探究低渗透油藏水驱转注空气驱开发潜力,评价注空气驱驱油效果。研究表明:随着氧化温度的升高,耗氧量增加,氧化后油样轻质组分减少,中质和重质组分增加;含水饱和度过高使原油氧化的热效应降低;原油氧化敏感性因素从大到小依次为压力、温度、含水饱和度。空气驱具有较好的驱油效果,驱油效率可达41.20%,但注气压力过高易导致气窜;水驱至经济极限后转空气驱可以提高驱油效率,但空气驱阶段驱油效率增长幅度较小,最终驱油效率为50.92%。在实际开发过程中,应采用减氧空气驱并优化注气参数,控制窜流通道形成,提高采收率。研究结果可为低渗透油藏空气驱开发提供基础理论依据和技术支持。

关键词： 低渗透; 氧化; 组分; 空气驱; 驱油效率

本文引用格式

骆晨 , 刘慧卿 , 柏宗宪 , 王转转 , 王亮亮 , 张雅倩 . 低渗透油藏空气驱氧化特征及驱油效果评价[J]. 特种油气藏, 2024 , 31(4) : 109 -117 . DOI: 10.3969/j.issn.1006-6535.2024.04.014

Abstract

In the process of high-pressure air injection development in low-permeability reservoirs,the mechanism of crude oil oxidation is unclear,and there is difficulty in predicting enhanced oil recovery potential.In order to solve these problems,low-temperature oxidation experiments and physical simulation experiments of air injection in long core were conducted to analyze the differences in oil and gas composition before and after oxidation reactions under different reservoir conditions,reveal the characteristics and laws of crude oil low-temperature oxidation,investigate the development transition potential from water flooding to air flooding in low-permeability reservoirs,and evaluate the oil displacement effect of air injection.The results show that with the increase in oxidation temperature,the oxygen consumption of crude oil rises;while after the oxidation,the light components of the oil sample decrease and the medium and heavy components increase.Excessive water saturation reduces the heat effect of crude oil oxidation.The sensitivity factors of crude oil oxidation in terms of sensibility from large to small are pressure,temperature,and water saturation.So,air flooding has a better oil displacement effect,with an oil displacement efficiency of up to 41.20%.However,excessively high gas injection pressure can cause gas channeling.After reaching the economic limit by water flooding,development mode switched to air flooding can improve oil displacement efficiency,but the increment of oil displacement efficiency during the air flooding is relatively small,with an ultimate oil displacement efficiency of 50.92%.Therefore,in actual development process,oxygen-reduced air flooding should be adopted,and gas injection parameters should be optimized so as to control gas channeling and enhance oil recovery rate.The research results can provide a theoretical basis and technical support for the development of low-permeability reservoir by air flooding.

Key words： low-permeability; oxidation; composition; air flooding; oil displacement efficiency

参考文献

[1] 杨森,舒政,闫婷婷,等.超低界面张力强乳化复合驱油体系在低渗透油藏中的应用[J].断块油气田,2021,28(4):561-565.
YANG Sen,SHU Zheng,YAN Tingting,et al.Application of ultra-low interfacial tension and strong emulsion composite flooding system in low permeability reservoir[J].Fault-block Oil & Gas Field,2021,28(4):561-565.
[2] 王哲,曹广胜,白玉杰,等.低渗透油藏提高采收率技术现状及展望[J].特种油气藏,2023,30(1):1-13.
WANG Zhe,CAO Guangsheng,BAI Yujie,et al.Development status and prospect of EOR technology in low-permeability reservoirs[J].Special Oil & Gas Reservoirs,2023, 30(1):1-13.
[3] 王香增,杨红,王伟,等.延长油田低渗透油藏提高采收率技术进展[J].油气地质与采收率,2022,29(4):69-75.
WANG Xiangzeng,YANG Hong,WANG Wei,et al.Technological progress in improving oil recovery from low-permeability reservoirs in Yanchang Oilfield[J].Petroleum Geology and Recovery Efficiency,2022,29(4):69-75.
[4] 凡玉梅.基于开发技术的低渗透油藏未动用储量分类评价[J].石油实验地质,2022,44(2):337-341.
FAN Yumei.Classification and evaluation of undeveloped reserves in low permeability reservoirs based on development technologies[J].Petroleum Geology & Experimental Geology,2022,44(2):337-341.
[5] 李伟忠.金家油田低渗敏感稠油油藏适度出砂室内评价[J].断块油气田,2019,26(6):810-815.
LI Weizhong.Laboratory evaluation on reasonable sand production of low permeability sensitive heavy oil reservoir in Jinjia Oilfield[J].Fault-block Oil & Gas Field,2019,26(6):810-815.
[6] 吴忠宝,李莉,张家良,等.低渗透油藏转变注水开发方式研究:以大港油田孔南GD6X1区块为例[J].油气地质与采收率,2020,27(5):105-111.
WU Zhongbao,LI Li,ZHANG Jialiang,et al.Study on the change of water flooding development mode in low-permeability reservoirs:a case study of Kongnan GD6X1 Block in Dagang Oilfield[J].Petroleum Geology and Recovery Efficiency,2020,27(5):105-111.
[7] 孙久刚.特低渗透油藏注空气开采效果数值模拟研究[J].钻采工艺,2016,39(1):53-63.
SUN Jiugang.Numerical simulation study on the effect of air injection in ultra-low permeability reservoirs[J].Drilling & Production Technology,2016,39(1):53-63.
[8] 史琳,许强辉.稠油注空气开发技术的基础研究与应用[J].清华大学学报(自然科学版),2022,62(4):722-734.
SHI Lin,XU Qianghui.Basic research and application of heavy oil air injection development technology[J].Journal of Tsinghua University(Science and Technology),2022,62(4):722-734.
[9] 东晓虎,王剑,刘慧卿,等.高含水层油砂SAGD相似物理模拟实验[J].石油学报,2022,43(5):658-667,718.
DONG Xiaohu,WANG Jian,LIU Huiqing,et al.SAGD scaled physical simulation experiment for oilsands reservoirs with high water-bearing layer[J].Acta Petrolei Sinica,2022,43(5):658-667,718.
[10] 陈小东,郭红霞,陈霖,等.裂缝储层空气泡沫驱注入参数优化实验[J].特种油气藏,2022,29(3):112-117.
CHEN Xiaodong,GUO Hongxia,CHEN Lin,et al.Experiment on optimization of injection parameters for air-foam flooding in fractured reservoirs[J].Special Oil & Gas Reservoirs,2022,29(3):112-117.
[11] KOK M V,VARFOLOMEEV M A,NURGALIEV D K.Low-temperature oxidation reactions of crude oils using TGA-DSC techniques[J].Journal of Thermal Analysis and Calorimetry,2019,14(2):1-7.
[12] KOK M V,VARFOLOMEEV M A,NURGALIEV D K.Thermal characterization of crude oils in the presence of limestone matrix by TGA-DTG-FTIR[J].Journal of Petroleum Science & Engineering,2017,154:495-501.
[13] REN Shaoran,GREAVES M,RATHBONE R R.Air injection LTO process: an IOR technique for light-oil reservoirs[J].SPE Journal,2002,7(1):90-99.
[14] 廖广志,王红庄,王正茂,等.注空气全温度域原油氧化反应特征及开发方式[J].石油勘探与开发,2020,47(2):334-340.
LIAO Guangzhi,WANG Hongzhuang,WANG Zhengmao,et al.Oil oxidation in the whole temperature regions during oil reservoir air injection and development methods[J].Petroleum Exploration and Development,2020,47(2):334-340.
[15] 齐桓,李宜强,陈小龙,等.轻质原油减氧空气驱低温氧化特征[J].石油勘探与开发,2021,48(6):1210-1217.
QI Huan,LI Yiqiang,CHEN Xiaolong,et al.Low-temperature oxidation of light crude oil in oxygen-reduced air flooding[J].Petroleum Exploration and Development,2021,48(6):1210-1217.
[16] 席长丰,王伯军,赵芳,等.轻质油藏高压注空气氧化特征与热混相驱技术[J].石油勘探与开发,2022,49(4):760-769.
XI Changfeng,WANG Bojun,ZHAO Fang,et al.Characteristics of oxidation and thermal miscible displacement technology in high-pressure air injection for light oil reservoirs[J].Petroleum Exploration and Development,2022,49(4):760-769.
[17] 王正茂,廖广志,蒲万芬,等.注空气开发中地层原油氧化反应特征[J].石油学报,2018,39(3):314-319.
WANG Zhengmao,LIAO Guangzhi,PU Wanfen,et al.Oxidation reaction features of formation crude oil in air injection development[J].Acta Petrolei Sinica,2018,39(3):314-319.
[18] 滕卫卫,吴庆祥,胡晓蝶,等.低渗透油藏空气驱原油氧化机理实验[J].特种油气藏,2022,29(3):104-111.
TENG Weiwei,WU Qingxiang,HU Xiaodie,et al.Experiment study on oxidation mechanism of crude oil by air flooding in low-permeability reservoirs[J].Special Oil & Gas Reservoirs,2022,29(3):104-111.
[19] 刘海波,王健,王猛,等.电缆取样地下水苏林分类法修正及应用[J].地下水,2020,42(5):30-32.
LIU Haibo,WANG Jian,WANG Meng,et al.Correction and application of Sulin classification method for water of cable formation sampling[J].Ground Water,2020,42(5):30-32.
[20] ZHAO Shuai, PU Wanfen, CHEN Qingyuan,et al.Propagation of combustion front within fractured shale and its influence on shale structure and crude oil properties: an experimental study[J].SPE Journal,2024,29(5):2389-2398.
[21] ZHAO Shuai,PU Wanfen,MIKHAIL A V,et al.Integrative investigation of low-temperature oxidation characteristics and mechanisms of heavy crude oil[J].Industrial and Engineering Chemistry Research,2022,58(32):14595-14602.
[22] PU Wanfen,ZHAO Shuai,HU Lingzhi,et al.Thermal effect caused by low temperature oxidation of heavy crude oil and its in-situ combustion behavior[J].Journal of Petroleum Science and Engineering.2020,184:106521.
[23] 孙焕泉,刘慧卿,王海涛,等.中国稠油热采开发技术与发展方向[J].石油学报,2022,43(11):1664-1674.
SUN Huanquan,LIU Huiqing,WANG Haitao,et al.Development technology and direction of thermal recovery of heavy oil in China[J].Acta Petrolei Sinica,2022,43(11):1664-1674.
[24] 刘慧卿,东晓虎.稠油热复合开发提高采收率技术现状与趋势[J].石油科学通报,2022,7(2):174-184.
LIU Huiqing,DONG Xiaohu.Current status and trends of enhanced oil recovery technology in heavy oil thermal composite development[J].Petroleum Science Bulletin,2022,7(2):174-184.
[25] 王伟伟.压力对轻质原油氧化动力学参数的影响[J].断块油气田,2020,27(1):109-112.
WANG Weiwei.Influence of pressure on oxidation kinetics parameters of light crude oil[J].Fault-block Oil & Gas Field,2020,27(1):109-112.
[26] 赵帅,蒲万芬,冯天,等.超稠油低温氧化和裂解成焦实验[J].特种油气藏,2022,29(3):69-75.
ZHAO Shuai,PU Wanfen,FENG Tian,et al.Experiments on low-temperature oxidation,pyrolysis and coking of super-heavy oil[J].Special Oil & Gas Reservoirs,2022,29(3):69-75.
[27] 韩晓强,李枭,彭小强,等.稠油火驱过渡金属钴盐催化氧化实验[J].特种油气藏,2022,29(2):135-140.
HAN Xiaoqiang,LI Xiao,PENG Xiaoqiang,et al.Catalytic oxidation experiment of transition metal cobalt salt in in-situ combustion for heavy oil[J].Special Oil & Gas Reservoirs,2022,29(2):135-140.
[28] KOK M V,GUL K G.Thermal characteristics and kinetics of crude oils and SARA fractions[J].Thermochimica Acta,2013,569(40):66-70.
[29] CHEN Yafei,PU Wanfen,LIU Xueli, et al.Specific kinetic triplet estimation of Tahe heavy oil oxidation reaction based on non-isothermal kinetic results[J].Fuel,2019,242:545-552.
[30] 王腾飞,王亮亮,王杰祥,等.催化空气驱技术低温氧化催化机理及油藏适应性[J].石油学报,2023,44(7):1118-1128.
WANG Tengfei,WANG Liangliang,WANG Jiexiang,et al.Low-temperature oxidation catalysis mechanism and oil reservoir adaptability of catalytic air flooding technique[J].Acta Petrolei Sinica,2023,44(7):1118-1128.
[31] 杜猛,吕伟峰,杨正明,等.页岩油注空气提高采收率在线物理模拟方法[J].石油勘探与开发,2023,50(4):795-807.
DU Meng,LYU Weifeng,YANG Zhengming,et al.An online physical simulation method for enhanced oil recovery by air injection in shale oil[J].Petroleum Exploration and Development,2023,50(4):795-807.
[32] 席长丰,王伯军,赵芳,等.热作用条件下烟道气与轻质原油混相规律[J].石油勘探与开发,2024,51(1):147-153.
XI Changfeng,WANG Bojun,ZHAO Fang,et al.Miscibility of light oil and flue gas under thermal action[J].Petroleum Exploration and Development,2024,51(1):147-153.
[33] CHEN Yafei,PU Wanfen,LI Yibo,et al.Novel insight into the viscosity-temperature characteristic by the comparison of Tahe ordinary-and ultra-heavy oils[J].Energy & Fuels,2018,32(12):12308-12318.
[34] LI Yibo,LUO Chen,LIN Xiang,et al.Characteristics and properties of coke formed by low-temperature oxidation and thermal pyrolysis during in-situ combustion[J].Industrial & Engineering Chemistry Research,2020,59(5):2171-2180.
[35] LI Yibo,CHEN Yafei,PU Wanfen,et al.Experimental investigation into the oxidative characteristics of Tahe heavy crude oil[J].Fuel,2017,209:194-202.
[36] 廖广志,杨怀军,蒋有伟,等.减氧空气驱适用范围及氧含量界限[J].石油勘探与开发,2018,45(1):105-110.
LIAO Guangzhi,YANG Huaijun,JIANG Youwei,et al.Applicable scope of oxygen-reduced air flooding and the limit of oxygen content[J].Petroleum Exploration and Development,2018,45(1):105-110.
[37] 杨怀军,潘红,章杨,等.减氧对空气泡沫驱井下管柱的缓蚀作用及减氧界限[J].石油学报,2019,40(1):99-107.
YANG Huaijun,PAN Hong,ZHANG Yang,et al.Corrosion inhibition effect of deoxygenation on down-hole string of air foam flooding process and deoxygenation limit[J].Acta Petrolei Sinica,2019,40(1):99-107.
[38] 高树生,杨明翰,叶礼友,等.低渗透底水气藏水侵动态模拟实验及其对采收率的影响[J].天然气工业,2022,42(3):61-70.
GAO Shusheng,YANG Minghan,YE Liyou,et al.Simulation experiment of water invasion performance in low-permeability bottom water gas reservoir and its influence on recovery factor[J].Natural Gas Industry,2022,42(3):61-70.
[39] 何东博,冀光,江乾锋,等.苏里格气田西区高含水致密砂岩气藏差异化开发技术对策[J]. 天然气工业,2022,42(1):73-82.
HE Dongbo,JI Guang,JIANG Qianfeng,et al.Differential development technological measures for high-water-cut tight sandstone gas reservoirs in western area of Sulige Gas Field[J].Natural Gas Industry,2022,42(1):73-82.
[40] 郭亮,王瑞宇,陈昶旭,等.泡沫含量监测系统在页岩气泡排井的实践[J].天然气工业,2023,43(12):63-70.
GUO Liang,WANG Ruiyu,CHENG Changxu,et al.Application of foam content monitoring system in foam drainage shale gas wells[J].Natural Gas Industry,2023,43(12):63-70.

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