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致密砂岩气藏水平井细分段适应性分析

黄禹忠，刁素，尹琅，栗铁峰，刘琦   

  1. 中国石化西南油气分公司工程技术研究院，四川 德阳 618000
  • 收稿日期:2016-11-25 修回日期:2017-01-18 出版日期:2017-03-10 发布日期:2017-03-10
  • 作者简介:黄禹忠(1972-)，男，四川荣县人，高级工程师，主要从事储层改造设计、研究及现场服务等工作. E-mail：huangyuzhong@126.com.
  • 基金资助:

    国家科技重大专项“大型油气田及煤层气开发”（编号：2016ZX05048）下设专题“薄层窄河道致密砂岩气藏水平井压裂关键技术”（编号：2016ZX05048004-003）资助.

Analysis of fine segmentation adaptability of horizontal wells in tight sandstone gas reservoirs

Huang Yu-zhong，Diao Su，Yin Lang，Li Tie-feng，Liu Qi   

  1. Engineering Technology Institute of Southwest Petroleum Branch,SINOPEC,Deyang 618000,China
  • Received:2016-11-25 Revised:2017-01-18 Online:2017-03-10 Published:2017-03-10

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摘要：

水平井分段压裂是致密砂岩气藏开发的有效手段，数值模拟表明，缩短缝间距，可以大幅度降低油气流动压差，从而提高单井产量。随着储层品质变差，川西沙溪庙组气藏常规分段（缝间距80~100m）效果变差，采出程度低。在地层压力不同的区域，采用自主研制的不动管柱不限级数滑套分段工具，试验了水平井细分段、拟体积压裂改造。不动管柱分段数最多达到20段，平均段间距为46.3m,平均入地液量为2 775.6m3。压后对比表明，高压气藏压裂效果好，生产相同时间，较常规分段井累计产量高，稳产好；但常压气藏压后压力降落快，返排困难，压后效果差。对此，结合岩心伤害实验分析了常压气藏压后效果差的原因，认为长时间、大液量施工，对储层渗透率伤害大，同时常压储层地层能量低，滤失到储层的液体难以返出，是导致该类气藏细分段、拟体积压裂返排困难，压后效果差的主要原因。建议致密砂岩常压气藏，不采用水平井细分段、大规模拟体积压裂改造；高压气藏可以推广应用。研究为类似气藏开发提供了借鉴。

关键词: 致密砂岩气藏, 细分段, 常压储层, 适应性分析

Abstract:

Staged fracturing of horizontal wells is an effective method for the development of tight sandstone gas reservoirs,numerical simulation shows that the reduction of oil and gas flow pressure can be greatly reduced,and the production of single well can be improved by shortening the distance between seams.With the variation of reservoir quality,the conventional subsection (80~100m) effect of the gas reservoir in Shaxi Temple Group is getting worse,and the production level is low.The use of independent development of the non-dynamic tube column is not limited to series of sets of tools,the fine segmentation and pseudo volume fracturing of horizontal well are tested in different regions of formation pressure.Don't move the pipe column segment number up to 20 segments,the average interval is 46.3m,the average volume of the liquid is 2 775.6m3.The pressure comparison shows that the high pressure gas reservoir volume fracturing effect is good,the production of the same time,compared with the conventional segmented well,accumulated high yield,good stability;but the normal gas reservoir volume fracturing pressure falls faster,and has flowback difficulties,poor fracturing effect.This,combined with the experimental analysis of the core damage reason of high pressure gas reservoir fracturing effect difference,is considered that the long time and large quantity of liquid are the great damage to the permeability of reservoir.At the same time,the normal pressure reservoir formation energy is low,and the filter is difficult to return to the reservoir.It is the main reason that causes the volume fracturing of this kind of gas reservoir to return to the line and the difference of the pressure.It is suggested that the normal pressure gas reservoir of tight sandstone should not be used for the reconstruction of horizontal well and large volume fracturing,and the high pressure gas reservoir can be popularized and applied.This study provides reference for similar gas reservoir development.

Key words: Tight sandstone gas reservoir, Encryption segmentation, Volume fracturing, Atmospheric reservoir, Adaptability analysis

中图分类号: 

  • TE33+1.2

[1]Lei Qun,Xu Yun,Jiang Tingxue,et al.For increasing extra-low permeability reservoir fracturing transformation effect fracture network technology[J].Acta Petrolei Sinica,2009,30(2)：237-241.[雷群,胥云,蒋廷学,等.用于提高特低渗透油气藏改造效果的缝网压裂技术[J].石油学报,2009,30(2)：237-241.]
[2]Weng Dingwei,Lei Qun,Xu Yun,et al.Seam net fracturing technology and field application[J].Acta Petrolei Sinica,2011,32(2)：280-284.[翁定为,雷群,胥云,李阳,李德旗,王维旭.缝网压裂技术及其现场应用[J].石油学报,2011,32(2)：280-284.]
[3]Li Xianwen,Zhang Kuangsheng,Fan Fengling,et al.Volume fracturing research and testing for tight low pressure reservoir in Ordos Basin[J].Journal of Oil and Gas,2013,35 (3):142-152.[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):142-152.]
[4]Fan Jianming,Yang Ziqing,Li Weibing,et al.Assessment of fracturing treatment of horizontal wells usin g SRV technique for Chang-7 tight oil reservoir in Ordos Basin[J].Journal of China University of Petroleum:Edition of Natural Science,2015,39(4):103-110.[樊建明,杨子清,李卫兵,等.鄂尔多斯盆地长7致密油水平井体积压裂开发效果评价及认识[J].中国石油大学学报:自然科学版,2015,39(4):103-110.]
[5]Ren Yong,Hong Changqing,Hu Xiangjun,et al.Analysis on the development tools of horizontal well volume fracturing[J].Petroleum Exploration and Development,2015,20(2):75-81.[任勇,冯长青,胡相君,等.长庆油田水平井体积压裂工具发展浅析[J].中国石油勘探,2015,20(2):75-81.]
[6]Liu Lifeng,Ran Qiquan,Wang Xin,et al.Optimization method for volume fracturing interval of horizontal well in tight reservoir[J].Oil Drilling & Production Technology,2015,37（3）：84-87.[刘立峰,冉启全,王欣,等.致密储层水平井体积压裂段间距优化方法[J].石油钻采工艺,2015,37（3）：84-87.]
[7]Wu Qi,Xu Yun,Zhang Shouliang,et al.Core theory and optimization design key of unconventional reservoirs volume transformation technology[J].Acta Petrolei Sinica,2014,35(4):706-713.[吴奇,胥云,张守良,等.非常规油气藏体积改造技术核心理论与优化设计关键[J].石油学报,2014,35(4):706-713.]
[8]Bai Xiaohu,Qi Yin,Lu Hongjun,et al.Optimal Design of horizontal well volume fracturing for tight oil reservoir in Ordos Basin[J].Oil  Drilling & Production Technology,2015,37(4):83-86.[白晓虎,齐银,陆红军,等.鄂尔多斯盆地致密油水平井体积压裂优化设计[J].石油钻采工艺,2015,37(4):83-86.]
[9]Wang Rui.Analysis on influential factors of tight reservoir horizontal well fracturing volume[J].Special Oil and Gas Reservoirs,2015,22（2）：126-128.[王瑞.致密油藏水平井体积压裂效果影响因素分析[J].特种油气藏,2015,22（2）：126-128.]
[10]Qi Bin,Yang Yandong,Ren Shan,at al.The new technology of pulse plunger sand fracturing and pilot test in west Sichuan area[J].Natural Gas Industry,2015,35(1):67-73.[戚斌,杨衍东,任山,等.脉冲柱塞式加砂压裂新工艺及其在川西地区的先导试验[J].天然气工业,2015,35(1):67-73.]
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