油井高聚能压裂技术及其在煤层气开采中的应用
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摘要
为解决煤层气的增产改造难题,将油井工程中较成熟的高聚能压裂技术应用到煤层气开采中,并通过加入强行支撑剂、新型高聚能材料,改变点火孔数量及位置等方式对其进行改进,以提高煤层气井的采收率。为验证高聚能压裂技术在煤层气井中的应用效果,选择了部分井层开展了现场试验及应用效果评价。结果显示:煤层气井中实施高聚能压裂技术的工艺简单、成本较低、不污染地层,对煤层气井降压解析、提高产气量具有较好效果。
In order to solve the problem of increasing production of coalbed methane( CBM),a high energy fracturing technology,which is a mature technology of oil well engineering,was applied in CBM extraction. A support agent and new polymer materials were added in high energy fracturing bombs. Location and number of the ignition holes in high energy fracturing bombs were changed. And then,recovery rate of CBM was improved fairly. Besides,field tests and application effects evaluation were carried out in some CBM wells to verify the application effect of high energy fracturing technology. Results show that the implementation of high energy fracturing in CBM extraction enables simple process,low cost and no pollution of coal seam,which presents a good effect on improving the gas production and decreasing pressure of CBM wells.
In order to solve the problem of increasing production of coalbed methane( CBM),a high energy fracturing technology,which is a mature technology of oil well engineering,was applied in CBM extraction. A support agent and new polymer materials were added in high energy fracturing bombs. Location and number of the ignition holes in high energy fracturing bombs were changed. And then,recovery rate of CBM was improved fairly. Besides,field tests and application effects evaluation were carried out in some CBM wells to verify the application effect of high energy fracturing technology. Results show that the implementation of high energy fracturing in CBM extraction enables simple process,low cost and no pollution of coal seam,which presents a good effect on improving the gas production and decreasing pressure of CBM wells.
引文
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[14]费鸿禄,洪陈超.应力波和爆生气体共同作用下裂隙区范围研究[J].爆破,2017,34(1):33-36,107.FEI H L,HONG C C.Study on crushed and fracture zone range under combined action of stress and detonation gas[J].Blasting,2017,34(1):33-36,107.
[15]安恩向,陆学斌.无壳弹高能气体压裂技术改进及应用[J].爆破,2008,25(3):87-89,95.AN E X,LU X B.Improvement and application of caseless high energy gas fracture technology[J].Blasting,2008,25(3):87-89,95.
[16]张强德,赵万祥,王法轩.高能气体压裂技术[J].断块油气田,1994,1(3):50-60.ZHANG Q D,ZHAO W X,WANG F X.The high energy gas fracturing technology[J].Fault-Block Oil&Gas Field,1994,1(3):50-60.
[17]陈伟,马宏昊,沈兆武,等.壳体环向聚能致裂器的作用原理与应用研究[J].爆破器材,2015,44(3):27-30.CHEN W,MA H H,SHEN Z W,et al.Mechanism and application study of the shell annular cumulative cracking device[J].Explosive Materials,2015,44(3):27-30.
[18]杨仁树,丁晨曦,杨立云,等.动态爆生裂纹相互影响的试验研究[J].爆破,2016,33(2):1-5,73.YANG R S,DING C X,YANG L Y,et al.Experimental study on interaction effect of dynamic cracks induced by blast[J].Blasting,2016,33(2):1-5,73.
[19]赵云涛,周明,徐文新,等.药型罩轴向密实度分布对射孔弹性能的影响研究[J].爆破器材,2015,44(3):55-59.ZHAO Y T,ZHOU M,XU W X,et al.Effect of the axial compactness distribution of liner on performance of perforating charge[J].Explosive Materials,2015,44(3):55-59.
[20]汪长栓,姚文元,冯国富,等.脉冲爆燃压裂技术在煤层气井中的应用[J].钻采技术,2013,36(2):128-130.
[2]中国产业调研网.中国煤层气市场现状调研与发展前景分析报告(2016-2020年):1659957[R/OL].http://www.cir.cn/R_Neng Yuan Kuang Chan/57/Mei Ceng Qi ShiChang Qian Jing Fen Xi Yu Ce.html
[3]苗晋平,史原萍.基于CDM的我国煤层气项目开发[J].煤炭经济研究,2009(6):11-13.
[4]周亚东,贾志刚.催化氧化技术在风排瓦斯处理应用进展[J].石油化工设备,2011,40(4):45-48.ZHOU Y D,JIA Z G.Application of catalytic oxidation technology to abatement of ventilation air methane[J].Petro-Chemical Equipment,2011,40(4):45-48.
[5]刘新龙.煤层气高能气体压裂开发技术[J].中国化工贸易,2011(5):1,43.
[6]尹锦涛,田杰苗,孙建博,等.煤层气水力压裂增产机理及效果评价方法研究[J].非常规油气,2015,2(5):72-76.YIN J T,TIAN J M,SUN J B,et al.Principle of water fracturing stimulation for CBM and its effect evaluation methods[J].Unconventional Oil&Gas,2015,2(5):72-76.
[7]鲜保安,高德利,陈彩红,等.煤层气高效开发技术研究[C]//中国石油学会.第一届全国特种油气藏技术研讨会论文集.北京,2004:204-208.
[8]王建中.高能气体压裂技术在云南恩洪盆地煤层气开发中的试验应用[J].中国煤层气,2010,7(5):14-17.WANG J Z.The application of high-energy gas fracture technique in the development of CBM in Enhong Basin of Yunnan Province[J].China Coalbed Methane,2010,7(5):14-17.
[9]李俊峰.高能气体压裂对煤层气井增产改造作用[J].能源与节能,2012(10):22-23,59.LI J F.The application of high energy gas fracturing as stimulation operation in CBM production[J].Energy and Energy Conservation,2012(10):22-23,59.
[10]赵宝友,王海东.我国低透气性本煤层增透技术现状及气爆增透防突新技术[J].爆破,2014,31(3):32-41.ZHAO B Y,WANG H D.Different technologies of permeability enhancement of single coal seam in China and new technique of high pressure gas shock[J].Blasting,2014,31(3):32-41.
[11]蒋林宏,王敉邦,张梅.国内外高能气体压裂技术的运用概况及独特优势[J].石油化工应用,2016,35(3):6-9,25.JIANG L H,WANG M B,ZHANG M.Application and advantages of high energy gas fracturing at home and abroad[J].Petrochemical Industry Application,2016,35(3):6-9,25.
[12]王化伟.高能气体压裂技术在宝浪油田的应用[J].石油仪器,2014,28(4):65-67.WANG H W.Application of high energy gas fracturing technology in Baolang Oilfield[J].Petroleum Instruments,2014,28(4):65-67.
[13]尚养兵,石磊,李垚,等.高能气体压裂技术在油田增产增注中的应用效果评价[J].中国石油和化工标准与质量,2013(3):110-112.
[14]费鸿禄,洪陈超.应力波和爆生气体共同作用下裂隙区范围研究[J].爆破,2017,34(1):33-36,107.FEI H L,HONG C C.Study on crushed and fracture zone range under combined action of stress and detonation gas[J].Blasting,2017,34(1):33-36,107.
[15]安恩向,陆学斌.无壳弹高能气体压裂技术改进及应用[J].爆破,2008,25(3):87-89,95.AN E X,LU X B.Improvement and application of caseless high energy gas fracture technology[J].Blasting,2008,25(3):87-89,95.
[16]张强德,赵万祥,王法轩.高能气体压裂技术[J].断块油气田,1994,1(3):50-60.ZHANG Q D,ZHAO W X,WANG F X.The high energy gas fracturing technology[J].Fault-Block Oil&Gas Field,1994,1(3):50-60.
[17]陈伟,马宏昊,沈兆武,等.壳体环向聚能致裂器的作用原理与应用研究[J].爆破器材,2015,44(3):27-30.CHEN W,MA H H,SHEN Z W,et al.Mechanism and application study of the shell annular cumulative cracking device[J].Explosive Materials,2015,44(3):27-30.
[18]杨仁树,丁晨曦,杨立云,等.动态爆生裂纹相互影响的试验研究[J].爆破,2016,33(2):1-5,73.YANG R S,DING C X,YANG L Y,et al.Experimental study on interaction effect of dynamic cracks induced by blast[J].Blasting,2016,33(2):1-5,73.
[19]赵云涛,周明,徐文新,等.药型罩轴向密实度分布对射孔弹性能的影响研究[J].爆破器材,2015,44(3):55-59.ZHAO Y T,ZHOU M,XU W X,et al.Effect of the axial compactness distribution of liner on performance of perforating charge[J].Explosive Materials,2015,44(3):55-59.
[20]汪长栓,姚文元,冯国富,等.脉冲爆燃压裂技术在煤层气井中的应用[J].钻采技术,2013,36(2):128-130.
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