Special Oil & Gas Reservoirs >

2021 , Vol. 28 >Issue 1: 103 - 110

DOI: https://doi.org/10.3969/j.issn.1006-6535.2021.01.015

Reservoir Engineering

Study on Reservoir Sensitivity Evaluation and Key Control Factors of Tight Oil Reservoirs

  • Wang Xiaowen
Expand
  • 1. Key Laboratory of Orogenic Belt and Crustal Evolution, Ministry of Education, Beijing 100871, China;
    2. Peking University, Beijing 100871, China

Received date: 2020-05-02

  Revised date: 2020-11-13

  Online published: 2021-04-27

Fold

Abstract

Tight sandstone reservoir in Wuqi Oilfield is disadvantaged by poor physical properties, complex pore structure, serious heterogeneity, and poor water injection effect. In response to these shortcomings, the pore structure characteristics and clay mineral composition of Chang6 Oil-bearing Formation in Wuqi oilfield were analyzed with high-pressure mercury porosimetry, scanning electron microscope and X-ray diffraction and other tests. Nine pore structure parameters were selected as characteristic parameters, and a comprehensive evaluation standard based on reservoir pore structure was established. The reservoirs were divided into three categories: Type I (excellent), Type II (moderate) and Type III (poor). The rock samples of each type of reservoir were evaluated for sensitivity and analyzed for influencing factor. The results of the study show that the sensitivity of the three types of reservoirs was significantly different. Specifically, Type I presented low velocity sensitivity, low water sensitivity, moderately low salt sensitivity, moderately high acid sensitivity, and moderately low alkali sensitivity. Type II presented moderately low to low velocity sensitivity and water sensitivity, moderate to low salt sensitivity, low acid sensitivity, and moderate to low alkali sensitivity. Type III presented moderate to low velocity sensitivity, low water sensitivity, low salt sensitivity, moderately low to low acid sensitivity and low alkali sensitivity. The pore structure and clay mineral composition were the main reasons for the difference in reservoir sensitivity. The study results can provide a reference for optimizing water injection and reservoir stimulation for similar tight oil reservoirs.

Key words： tight oil reservoir; sensitivity; pore structure; clay minerals; key trolling factors; Wuqi Oilfield

Cite this article

Wang Xiaowen . Study on Reservoir Sensitivity Evaluation and Key Control Factors of Tight Oil Reservoirs[J]. Special Oil & Gas Reservoirs, 2021 , 28(1) : 103 -110 . DOI: 10.3969/j.issn.1006-6535.2021.01.015

References

[1] 宫清顺,寿建峰,姜忠朋,等.准噶尔盆地乌尔禾油田三叠系百口泉组储层敏感性评价[J]. 石油与天然气地质, 2012,33(2):307-310.
GONG Qingshun,SHOU Jianfeng,JIANG Zhongpeng,et al.Reservoir sensitivity evaluation of Triassic Baikouquan Formation in Wuerhe Oilfield, Junggar Basin[J].Petroleum and natural gas geology,2012,33(2):307-310.
[2] 张玄奇.储层敏感性的灰色评价[J].大庆石油地质与开发,2004,23(6):60-62.
ZHANG Xuanqi.Grey evaluation of reservoir sensitivity[J].Daqing Petroleum Geology and Development,2004,23(6):60-62.
[3] 李云,祁利祺,胡作维,等.准噶尔盆地阜东斜坡中侏罗统头屯河组储层敏感性特征[J].岩性油气藏,2014,26(1):52-56.
LI Yun,QI Liqi,HU Zuowei,et al.Reservoir sensitivity characteristics of Middle Jurassic Toutunhe Formation in Fudong Slope of Junggar Basin[J].Lithologic Reservoir,2014,26(1):52-56.
[4] 于兴河.油气储层地质学基础[M].北京:石油工业出版社,2009:56-57.
YU Xinghe.Geological basis of oil and gas reservoirs[M].Beijing:Petroleum Industry Press,2009:56-57.
[5] 郑荣才.辽河盆地下第三系砂岩储层的敏感性研究[J].矿物岩石,1997,18(1):77-84.
ZHENG Rongcai.Study on sensitivity of Eogene sandstone reservoir in Liaohe Basin[J].Mineral Rock,1997,18(1): 77-84.
[6] 常学军,尹志军.高尚堡沙三段油藏储层敏感性实验研究及其形成机理[J].石油实验地质,2004,26(1):84-88.
CHANG Xuejun,YIN Zhijun.Experimental study on reservoir sensitivity and formation mechanism of Sha3 of Gaoshangbao Reservoir[J].Petroleum Experimental Geology, 2004,26 (1): 84-88.
[7] 何永宏.鄂尔多斯盆地吴起油田长6储层敏感性研究[J].断块油气田,2014,21(1):87-91.
HE Yonghong.Sensitivity study of Chang6 Reservoir in Wuqi Oilfield, Ordos Basin[J].Fault-Block Oil & Gas Field, 2014, 21 (1): 87-91.
[8] 成赛男.伊通盆地莫里青断陷西北缘双阳组二段储层敏感性流动实验评价[J].油气地质与采收率,2013, 20(3):76-80.
CHENG Sainan.Experimental evaluation of reservoir sensitivity flow in the second member of Shuangyang Formation in the northwest margin of Moliqing fault depression in Yitong Basin[J].Petroleum Geology and Recovery Efficiency, 2013, 20 (3):76-80.
[9] 尚婷,韩小琴,乔向阳,等.鄂尔多斯盆地子长地区盒8段储层敏感性研究[J].石油地质与工程,2015,29(2):101-105.
SHANG Ting,HAN Xiaoqin,QIAO Xiangyang,et al.Reservoir sensitivity study of He8 member in Zichang Area, Ordos Basin[J].Petroleum Geology and Engineering,2015, 29(2):101-105.
[10] 中国石油化工股份有限公司胜利油田分公司地质科学研究院.储层敏感性流动实验评价方法:SY/T 5358—2012[S].北京:石油工业出版社, 2012:7-8.
Research Institute of Geological Sciences, Shengli Oilfield Branch, Sinopec. Evaluation method of sensitivity flow experiment for oil and gas industry of the People's Republic of China:SY/T 5358-2012[S].Beijing:Petroleum Industry Press,2012:7-8.
[11] 吴胜和,熊琦华.油气储层地质学[M].北京:石油工业出版社,1998:122-168.
WU Shenghe,XIONG Qihua.Petroleum reservoir geology[M].Beijing:Petroleum Industry Press,1998:122-168.
[12] 裘亦楠,薛叔浩.油气储层评价技术[M].北京:石油工业出版社,1994:26-68.
QIU Yinan,XUE Shuhao.Reservoir evaluation techniques[M].Beijing:Petroleum Industry Press,1994: 26-68.
[13] 章雄冬,朱玉双,曹海虹,等.苏北盆地草舍油田泰州组储层水敏伤害及其对注水开发的影响[J].石油与天然气地质,2010,31(4):504-510.
ZHANG Xiongdong,ZHU Yushuang,CAO Haihong,et al.Water sensitivity damage of Taizhou Formation reservoir in Caoshe Oilfield of Subei Basin and its influence on water injection development[J].Petroleum and Natural Gas Geology, 2010,31(4):504-510.
[14] 贾统权. 黏土矿物与油藏演化的对应关系对储层敏感性的影响[J].油气地质与采收率,2007,14(5):12-15.
JIA Tongquan. Influence of correspondence between clay minerals and reservoir evolution on reservoir sensitivity[J].Petroleum Geology and Recovery Efficiency, 2007,14 (5):12-15.
[15] 张昭槐,罗平亚.保护储集层技术[M].北京:石油工业出版社,1993:1-45.
ZHANG Zhaohuai,LUO Pingya.Reservoir protection technology[M].Beijing: Petroleum Industry Press,1993:1-45.
[16] 李冠男,孙卫,刘登科.鄂尔多斯盆地吴起薛岔地区长6储层敏感性研究及其主控因素[J].地质科技情报,2018,37(6):138-147.
LI Guanmen,SUN Wei,LIU Dengke.Sensitivity study and main control factors of Chang6 Reservoir in Wuqi Xuecha Area, Ordos Basin[J].Geological and Technological Information,2018,37(6):138-147.
[17] 任大忠,张晖,周然,等.塔里木盆地克深地区巴什基奇克组致密砂岩储层敏感性研究[J]. 岩性油气藏,2018,30(6):27-36.
REN Dazhong,ZHANG Hui,ZHOU ran,et al.Sensitivity study on tight sandstone reservoir of Bashijiqike Formation in Keshen Area, Tarim Basin[J].Lithologic Reservoir, 2018,30(6):27-36.
[18] 单祥,徐洋,郭华军,等.准噶尔盆地玛湖凹陷北斜坡玛131井区块三叠系百口泉组储层敏感性评价[J]. 地质科技情报, 2017,36(1):176-182.
SHAN Xiang,XU Yang,GUO Huajun,et al.Reservoir sensitivity evaluation of Triassic Baikouquan Formation in well Ma 131 block, north slope of Mahu Sag, Junggar Basin[J].Geological Science and Technology Information,2017,36(1):176-182.
[19] 吕佳蕾,吴因业. 鄂尔多斯盆地中部地区致密砂岩储层敏感性及损害机理[J].大庆石油地质与开发,2019,38(3):167-174.
LYU Jialei, WU Yinye. Sensitivities and damage mechanisms of the tight sandstone reservoir in Central Ordos Basin[J].Petroleum Geology & Oilfield Development in Daqing,2019,38(3):167-174.
[20] 何岩峰,赵虹宇,窦祥骥,等. 考虑应力敏感的页岩储层纳米孔隙渗透率计算模型[J].大庆石油地质与开发,2018,37(6):151-157.
HE Yanfeng,ZHAO Hongyu,DOU Xiangji,et al. Calculating model of the nano-pore permeability in the shale reservoir considering the stress sensitivity[J]. Petroleum Geology & Oilfield Development in Daqing,2018,37(6):151-157.
[21] 祝明谦,王怒涛,张辉. 启动压力梯度和应力敏感效应对油藏产能的影响[J].大庆石油地质与开发,2018,37(3):59-63.
ZHU Mingqian,WANG Nutao,ZHANG Hui. Influences of the start-up pressure gradient and stress sensitive effect on the productivity of the oil reservoir[J]. Petroleum Geology & Oilfield Development in Daqing,2018,37(3):59-63.
[22] 游利军,程秋洋,康毅力,等.氧化液作用下富有机质页岩裂缝应力敏感性[J].油气地质与采收率,2018,25(4):79-85.
YOU Lijun,CHENG Qiuyang,KANG Yili,et al. Fracture stress sensitivity of organic-rich shale under the action of oxidation fluid[J].Petroleum Geology and Recovery Efficiency,2018,25(4):79-85.
[23] 祝浪涛,廖新维,陈志明,等.应力敏感性低渗透油藏CO2混相驱试井模型[J].油气地质与采收率,2017,24(4):88-93.
ZHU Langtao,LIAO Xinwei,CHEN Zhiming,et al.Well test model of CO2 miscible flooding in the low-permeability reservoirs withstress sensitivity[J].Petroleum Geology and Recovery Efficiency,2017,24(4):88-93.
Options
Outlines

/

〈 〉