Technologies and Practice of Water-flooding Development in Liaohe Oilfield

doi:10.3969/j.issn.1006-6535.2020.06.005

Abstract

Abstract: Water-flooding oil reservoirs in Liaohe Oilfield are characterized by more faults, multiple oil-bearing series, strong reservoir heterogeneity, high shale content and complex reservoir types. In the past 10 years of development practice, combined with the difficulties in water-flooding development of various oil reservoirs, 12 core development technologies have been developed, including deep fine reservoir description, subdividing water-flooding adjustment, identification of inefficient and ineffective water cycle, fine potential tapping by combination of secondary and tertiary recovery, and multivariate injection-production regulation and control, and a set of water-flooding development technologies suitable for medium-high permeability sandstone oil reservoir, low-permeability sandstone oil reservoir and special lithologic oil reservoir have been formed. The annual oil production of water-flooding oil reservoirs has increased from 324×10⁴t/a to 360×10⁴t/a, and the water-flooding recovery ratio has increased by 3.3 percentage points. The technical countermeasures to improve the effect of water-flooding development in old oilfields have certain guiding and reference significance for the same type of oil reservoirs.

Key words: water flooding, deep water-flooding adjustment, multivariate regulation and control, combination of secondary and tertiary recovery, multivariate injection and production, light oil, high pour-point oil, Liaohe Oilfield

CLC Number:

TE357.6

Wu Yi, Shi Lihua, Yin Yanfang, Qiu Lin. Technologies and Practice of Water-flooding Development in Liaohe Oilfield[J]. Special Oil & Gas Reservoirs, 2020, 27(6): 40-46.

References

[1] 武毅,王化敏,薛尚义,等.复杂断块油藏注水开发技术[M].北京:石油工业出版社,2007:2-8.
WU Yi,WANG Huamin,XUE Shangyi,et al.Waterflooding development technology of complex fault block reservoir[M].Beijing:Petroleum Industry Press,2007:2-8.
[2] 武毅,肖红林,袁平.辽河油区砂岩油藏注水开发界限研究[J].西南石油大学学报(自然科学版),2012,34(3):125-131.
WU Yi,XIAO Honglin,YUAN Ping.Water-flooding reservoir screening and evaluation criteria for Liaohe sandstone reservoirs[J].Journal of Southwest Petroleum University(Science & Technology Edition),2012,34(3):125-131.
[3] 谭文彬.中国油田开发实践回顾探讨20题[M].北京:石油工业出版社,2007:194-195.
TAN Wenbin.Review and discussion on 20 problems of oilfield development practice in China[M].Beijing:Petroleum Industry Press,2007:194-195.
[4] 陈元千,吕恒宇,傅礼兵,等.注水开发油田加密调整效果的评价方法[J].油气地质与采收率,2017,24(6):60-64.
CHEN Yuanqian,LYU Hengyu,FU Libing,et al.Evaluation method of infilling adjustment effect for waterflooding development oilfields[J].Petroleum Geology and Recovery Efficiency,2017,24(6):60-64.
[5] 王有慧,鲍君刚,王呈呈,等.高含水砂岩老油田剩余油综合分析及开发实践[J].石油化工高等学校学报,2020,33(5):86-91.
WANG Youhui,BAO Jungang,WANG Chengcheng,et al.Comprehensive analysis of residual oil in high water cut sandstone oilfield and development practice[J].Journal of Petrochemical Universities,2020,33(5):86-91.
[6] 李存贵,徐守余.长期注水开发油藏的孔隙结构变化规律[J].石油勘探与开发,2003,30(2):94-96.
LI Cungui,XU Shouyu.Law of pore structure variety in reservoir during a long episode waterflooded development[J].Petroleum Exploration and Development,2003,30(2):94-96.
[7] 王玉普,刘义坤,邓庆军.中国陆相砂岩油田特高含水期开发现状及对策[J].东北石油大学学报,2014,38(1):1-9.
WANG Yupu,LIU Yikun,DENG Qingjun.Current situation and countermeasures of development of special high water cut stage in continental sandstone oilfield in China[J].Joumal of Northeast Petroleum University,2014;38(1):l-9.
[8] 朱丽红,杜庆龙,姜雪岩,等.陆相多层砂岩油藏特高含水期三大矛盾特征及对策[J].石油学报,2015,36(2):210-216.
ZHU Lihong,DU Qinglong,JIANG Xueyan,et al.Characteristics and strategies of three major contradictions for continental facies multi-layered sandstone reservoir at ultra-high water cut stage[J].Acta Petrolei Sinica,2015,36(2):210-216.
[9] 张铁帝.低效无效水循环的识别方法[J].中国科技信息,2014,26(19/20):53-54.
ZHANG Tiedi.Identification method of inefficient and ineffective water cycle[J].China Science and Technology Information,2014,26(19/20):53-54.
[10] 林火养,罗波,程立,等.应用聚合物驱替特征曲线计算港西油田二三结合区块可采储量[J].石油地质与工程,2019,33(5):77-79.
LIN Huoyang,LUO Bo,CHENG Li,et al.Calculation on recoverable reserves of the second tertiary combined block of Gangxi Oilfield by polymer displacement characteristic curve[J].Petroleum Geology and Engineering,2019,33(5):77-79.
[11] 冯其红,袁士义,韩冬,等.可动凝胶深部调驱动态预测方法研究[J].石油学报,2006,27(4):76-80.
FENG Qihong,YUAN Shiyi,HAN Dong,et al.A new method of performance prediction of flowing gel for profile control[J].Acta Petrolei Sinica,2006,27(4):76-80.
[12] 冯其红,王波,王相,等.高含水油藏细分注水层段组合优选方法研究[J].西南石油大学学报(自然科学版),2016,38(2):103-108.
FENG Qihong,WANG Bo,WANG Xiang,et al.Study on layer combination optimization method of subdivision water injection in high water-cut reservoirs[J].Journal of Southwest Petroleum University(Science & Technology Edition),2016,38(2):103-108.
[13] 杨秋莲,李爱琴,孙燕妮,等.超低渗储层分类方法探讨[J].岩性油气藏,2007,19(4):51-56.
YANG Qiulian,LI Aiqin,SUN Yanni,et al.Classification method for extra-low permeability reservoirs[J].Lithologic Reservoirs,2007,19(4):51-56.
[14] 杨志冬,蔡圣权,秦爽,等.低渗强水敏油藏整体防膨注水开采技术研究与应用[J].特种油气藏,2004,11(4):86-88,91.
YANG Zhidong,CAI Shengquan,QIN Shuang,et al.Study and application of integral antiswelling for waterflooding in low permeability,strongly water-sensitive reservoir[J].Special Oil & Gas Reservoirs,2004,11(4):86-88,91.
[15] 杜建芬,刘伟,郭平,等.低渗透油藏气水交替注入能力变化规律研究[J].西南石油大学学报(自然科学版),2011,33(5):114-117.
DU Jianfen,LIU Wei,GUO Ping,et al.Law of injection capacity changes of gas-water alternative injection in low-permeability reservoirs[J].Journal of Southwest Petroleum University(Science & Technology Edition),2011,33(5):114-117.
[16] 杨胜来,李梅香,陈浩,等.裂缝性油藏水驱过程中基质的动用程度及基质贡献率[J].石油钻采工艺,2011,33(2):69-72.
YANG Shenglai,LI Meixiang,CHEN Hao,et al.Study of the producing degree and contribution ratio of matrix in fractured reservoir during water flooding[J].Oil Drilling & Production Technology,2011,33(2):69-72.
[17] 张吉昌,靳海龙,梁武全,等.多元注水技术在裂缝性古潜山油藏的探索与实践[J].特种油气藏,2012,19(2):86-89.
ZHANG Jichang,JIN Hailong,LIANG Wuquan,et al.Research and practice of multiple water injection technology for fractured buried hill reservoirs[J].Special Oil & Gas Reservoirs,2012,19(2):86-89.