岩性油气藏 ›› 2019, Vol. 31 ›› Issue (5): 134140.doi: 10.12108/yxyqc.20190516
安杰, 唐梅荣, 曹宗熊, 王文雄, 陈文斌, 吴顺林
AN Jie, TANG Meirong, CAO Zongxiong, WANG Wenxiong, CHEN Wenbin, WU Shunlin
摘要: 鄂尔多斯盆地长X油藏压力系数低、储层物性差,前期采用超前注水七点井网长水平井开发,初期单井产能有所提高,但含水率上升快。为了避免人工裂缝与腰部水线窜通,压裂时往往会有约200 m水平段无改造而浪费。同时,因超前注水油井生产等停较长时间,影响了新井贡献时率。借鉴致密油的开发经验,采用逆势思维的方法,提出“停止超前注水、减少注水井数量、减少水平段长度、密切割压裂和体积压裂相结合”转变开发方式的思路,优化注水方式、开采井网、水平段长度和压裂工艺参数等,并开展现场试验。结果表明:形成的五点法短水平井密切割体积压裂开发技术效果较好,地层能量得到快速补充,含水率快速上升得到控制,缩短了油井因超前注水产生的等停时间,提高了新井贡献时率30%,减少的注水井数量和水平段长度使成本节约20%,每百米水平段产能较前期增加88%,该成果为同类超低渗致密储层高效开发提供了技术支撑。
中图分类号:
[1] 吴奇,胥云,刘玉章,等.美国页岩气体积压裂改造技术现状及对我国的启示.石油钻采工艺,2011,32(2):1-7. WU Q,XU Y,LIU Y Z,et al. The current situation of stimulated reservoir volume for shale in U.S. and its inspiration of China. Oil Drilling & Production Technology,2011,32(2):1-7. [2] MAYERHOFER M J,LOLON E P,WARPINSKI N R,et al. What is stimulated reservoir volume(SRV)? SPE 119890,2008. [3] MAYERHOFER M J,RECHARDSON M F,WALKER R N,et al. Proppants? We don't need no proppants. SPE 38611,1997. [4] 李宪文,张矿生,樊凤玲,等.鄂尔多斯盆地低压致密油层体积压裂探索研究及试验.石油天然气学报,2013,35(3):142-146. LI X W,ZHANG K S,FAN F L,et al. Study and experiment on volumetric fracturing in low pressure tight formation of Ordos Basin. Journal of Oil and Gas Technology,2013,35(3):142-146. [5] 李忠兴,屈雪峰,刘万涛,等.鄂尔多斯盆地长7致密油合理开发方式探讨.石油勘探与开发,2015,42(2):217-221. LI Z X,QU X F,LIU W T,et al. Development modes of Triassic Yanchang Formation Chang 7 member tight oil in Ordos Basin, NW China. Petroleum Exploration and Development,2015,42(2):217-221. [6] 师海军.低渗透油田超前注水开发模式研究.长江大学学报(自科版),2014,31(11):175-177. SHI H J. Research on development model of advanced water injection in low permeability oilfield. Journal of Yangtze University(Nature & Science Edition),2014,31(11):175-177. [7] MODELAND N,BULLER D,CHONG K K. Statistical analysis of the effect of completion methodology on production in the Haynesville shale. SPE 144120,2011. [8] 胥云,雷群,陈铭,等.体积改造技术理论研究进展与发展方向.石油勘探与开发,2018,45(5):874-884. XU Y,LEI Q,CHEN M,et al. Progress and development of volume stimulation techniques. Petroleum Exploration and Development,2018,45(5):874-884. [9] 吴奇,胥云,王腾飞,等.增产改造理念的重大变革:体积改造技术概论.天然气工业,2011,31(4):7-12. WU Q,XU Y,WANG T F,et al. The revolution of reservoir stimulation:an introduction of volume fracturing. Natural Gas Industry,2011,31(4):7-12. [10] 胡文瑞,魏漪,鲍敬伟.中国低渗透油气藏开发理论与技术进展.石油勘探与开发,2018,45(4):646-654. HU W R,WEI Y,BAO J W. Development of the theory and technology for low permeability reservoirs in China. Petroleum Exploration and Development,2018,45(4):646-654. [11] 胡文瑞.水平井油藏工程设计.北京:石油工业出版社,2008:105-204. HU W R. Horizontal well reservoir engineering design. Beijing:Petroleum Industry Press,2008:105-204. [12] 朱苏青,苏玉亮,叶惠民.低渗透油田驱替机理研究.西南石油学院学报,2004,26(6):39-41. ZHU S Q,SU Y L,YE H M. Study of the mechanism of the oil displacement in low permeability reservoirs. Journal of Southwest Petroleum Insitute,2004,26(6):39-41. [13] AGHARAZI A. Determining maximum horizontal stress with microseismic focal mechanisms:Case studies in the Marcellus, Eagle Ford,Wolfcamp. URTEC 2461621,2016. [14] 韩菁菁,刘建,武龙.鄂尔多斯盆地长6致密砂岩油藏压裂技术研究.岩性油气藏,2017,29(1):132-134. HAN J J,LIU J,WU L. Fracturing technology of Chang 6 tight sandstone reservoir in Ordos Basin. Lithologic Reservoirs,2017, 29(1):132-134. [15] 苏皓,雷征东,张荻萩,等.致密油藏体积压裂水平井参数优化研究.岩性油气藏,2018,30(4):145-147. SU H,LEI Z D,ZHANG D Q,et al. Volume fracturing parameters optimization of horizontal well in tight reservoir. Lithologic Reservoirs,2018,30(4):145-147. [16] ROMANSON R,PONGRATZ R,EAST L,et al. Multistage stimulation processes can help achieve and control branch stimulation and increase stimulated reservoir volume for unconventional reservoirs. SPE 142959,2011. [17] NAGEL N B,SANCHEZ-NAGEL M A,ZHANG F,et al. Coupled numerical evaluations of the geomechanical interactions between a hydraulic fracture stimulation and a natural fracture system in shale formations. Rock mechanics and Rock Engineering,2013,46(3):581-609. [18] 苏玉亮,王文东,赵广渊,等.体积压裂缝网渗流与注水开发适配性研究.西南石油大学学报(自然科学版),2015,37(5):106-110. SU Y L,WANG W D,ZHAO G Y,et al. Researches on fluid flow features and water flooding suitability in network fractured well. Journal of Southwest Petroleum University(Science & Technology Edition),2015,37(5):106-110. [19] 王瑞.致密油藏水平井体积压裂效果影响因素分析.特种油气藏,2015,22(2):126-128. WANG R. Analysis on influential factors for volumetric fracturing effects in horizontal well in tight reservoir. Special Oil and Gas Reservoirs,2015,22(2):126-128. [20] 蒋廷学,王海涛,卞晓冰,等.水平井体积压裂技术研究与应用.岩性油气藏,2018,30(3):6-9. JIANG T X,WANG H T,BIAN X B,et al. Volume fracturing technology for horizontal well and its application. Lithologic Reservoirs,2018,30(3):6-9. |
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