Research and Application of New Refracturing Technology in Low Permeability Oilfield
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摘要: 鄂尔多斯盆地长X储层受储层物性、压裂裂缝等因素影响,注水开发驱替效果较差,大量剩余油分布于人工裂缝两侧难以动用.为了充分动用裂缝侧向剩余油,提高油井单井产量和采收率,按照"控制缝长+多缝+提高剩余油动用程度"的技术思路,通过数值模拟计算,提出并试验形成了以"增加裂缝带宽、产生转向新裂缝"为增产机理,以"缝内暂堵、增大排量、适度规模和低黏液体"为模式的老井新型多缝重复压裂技术.现场试验表明,与常规压裂相比,该压裂技术裂缝带宽增大21 m,改造体积增大148%,平均单井增油量为常规压裂的1.9倍,取得明显的增产效果,为长庆油田低渗透储层老井重复改造提供了新的技术手段.Abstract: Production from the Chang X reservoir of the Ordos Basin has been declining due to the petrophysical properties of the producing formation, induced fractures,and other factors, and the displacement effect with water. As a result, there is large amount of remaining oil distributed at both sides of induced fractures, and it is difficult to tap.To optimally recover the remaining oil, improve output and recovery, according to the concept of "control of fracture length + multi-fracture fracturing + tap much remaining oil", this paper presents a new multi-refracture stimulating technology (NMST) through numerical simulation, which can increase fracture width, create new fractures in different directions, and take such measures as temporary plugging inside fracture, raising flow rate properly, using low viscous fluids, etc. Field testing shows that the single-well daily average output is 1.9 times that of conventional technology, fracture belt and fractured formation volume increased by 21 m and 148% respectively. The NMST provides a new way to improve recovery of oil in the low-permeability reservoirs in the Ordos Basin.
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Keywords:
- low permeability reservoir /
- old well /
- multiple fracturing /
- output per well
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[1] 翁定为,雷群,胥云,等.缝网压裂技术及其现场应用[J].石油学报,2011,32(2):280-284. Weng Dingwei,Lei Qun,Xu Yun,et al.Network fracturing techniques and its application in the field[J].Acta Petrolei Sinica,2011,32(2):280-284. [2] 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[J].石油天然气学报,2013,35(3):142-147. Li Xianwen,Zhang Kuangsheng,Fan Fengling,et al.Study and experiment on volumetric fracturing in low pressure tight formation of Ordos Basin[J].Journal of Oil and Gas Technology,2013,35(3):142-147. [3] 石道涵,张兵,何举涛,等.鄂尔多斯长7 致密砂岩储层体积压裂可行性评价[J].西安石油大学学报:自然科学版,2014,29(1):52-55. Shi Daohan,Zhang Bing,He Jutao,et al.Feasibility evaluation of volume fracturing of Chang-7 tight sandstone reservoir in Ordos Basin[J].Journal of Xi’an Shiyou University:Natural Science Edition,2014,29(1):52-55. [4] 刘立峰,张士诚.通过改变近井地应力场实现页岩储层缝网压裂[J].石油钻采工艺,2011,33(4):70-73. Liu Lifeng,Zhang Shicheng.Net fracturing by changing the surrounding in-situ stress in shale reservoirs[J].Oil Drilling Production Technology,2011,33(4):70-73. [5] 达引朋,赵文,卜向前,等.低渗透油田重复压裂裂缝形态规律研究[J].断块油气田,2012,19(6):781-784. Da Yinpeng,Zhao Wen,Bu Xiangqian,et al.Study on fracture pattern law for re-fracturing in low permeability reservoir[J].Fault-Block Oil Gas Field,2012,19(6):781-784. [6] 丁云宏,胥云,翁定为,等.低渗透油气田压裂优化设计新方法[J].天然气工业,2009,29(9):78-80. Ding Yunhong,Xu Yun,Weng Dingwei,et al.A new method of fracturing optimization design for low-permeability oil and gas fields[J].Natural Gas Industry,2009,29(9):78-80. [7] 任雁鹏,达引朋,赵华,等.绥靖油田大路沟二区重复压裂技术研究与试验[J].钻采工艺,2011,34(6):51-54. Ren Yanpeng,Da Yinpeng,Zhao Hua,et al.Research and test of re-fracturing technology in the Dalugou Second Region of Suijing Oilfield[J].Drilling Production Technology,2011,34(6):51-54. [8] 李小刚,苏洲,杨兆中,等.页岩气储层体积缝网压裂技术新进展[J].石油天然气学报,2014,36(7):154-159. Li Xiaogang,Su Zhou,Yang Zhaozhong,et al.New progress of volumetric network fracturing technologies for shale gas reservoirs[J].Journal of Oil and Gas Technology,2014,36(7):154-159. [9] 高武彬,陈宝春,王成旺,等.缝网压裂技术在超低渗透油藏裂缝储层中的应用[J].油气井测试,2013,23(1):52-54. Gao Wubin,Chen Baochun,Wang Chengwang,et al.Application of fracture network fracturing technique to fracture reservoir in ultra-low permeability oil field[J].Well Testing,2013,23(1):52-54. [10] 赵崇镇.深层砂砾岩水平井组立体缝网压裂优化技术[J].石油钻探技术,2014,42(5):95-98. Zhao Chongzhen.3D fracturing network optimization techniques for horizontal wells in sandstone-conglomerate formations[J].Petroleum Drilling Techniques,2014,42(5):95-98. [11] 魏子超,綦殿生,孙兆旭,等.体积压裂技术在低孔致密油藏的应用[J].油气井测试,2013,22(4):50-52. Wei Zichao,Qi Diansheng,Sun Zhaoxu,et al.Application of fracturing technology in low pore volume density of reservoir[J].Well Testing,2013,22(4):50-52. [12] 赵振峰,樊凤玲,蒋建方,等.致密油藏混合水压裂实例[J].石油钻采工艺,2014,36(6):74-78. Zhao Zhenfeng,Fan Fengling,Jiang Jianfang,et al.Examples of mixed water fracturing for competent oil reservoir[J].Oil Drilling Production Technology,2014,36(6):74-78. [13] 王晓东,赵振峰,李向平,等.鄂尔多斯盆地致密油层混合水压裂试验[J].石油钻采工艺,2012,34(5):80-83. Wang Xiaodong,Zhao Zhenfeng, Li Xiangping,et al.Mixing water fracturing technology for tight oil reservoir in Ordos Basin[J].Oil Drilling Production Technology,2012,34(5):80-83. [14] 崔明月,刘玉章,修乃领,等.形成复杂缝网体积(ESRV)的影响因素分析[J].石油钻采工艺,2014,36(2):82-87. Cui Mingyue, Liu Yuzhang,Xiu Nailing,et al.Analysis of factors affecting the formation of effective stimulated reservoir volume(ESRV)[J].Oil Drilling Production Technology,2014,36(2):82-87. [15] 蒋廷学,贾长贵,王海涛,等.页岩气网络压裂设计方法研究[J].石油钻探技术,2011,39(3):36-40. Jiang Tingxue,Jia Changgui,Wang Haitao,et al.Study on network fracturing design method in shale gas[J].Petroleum Drilling Techniques,2011,39(3):36-40. -
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