海上低渗超低渗气藏产能释放增产技术
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摘要
海上低渗超低渗油气藏由于自然产能较低,需要采用一定的储层改造措施来释放油气井产能。通过对目前国内外低渗透储层常用的压裂增产技术进行调研,并分析其应用于海上低渗透油气储层的可行性。结果表明,海上低渗超低渗气藏由于受完井方式、作业空间以及经济成本的影响,不适合采用大型酸化压裂措施。常规酸化解堵措施以其增产效果好、施工方便以及成本低等特点,比较适合海上低渗透油气藏的增产改造需求。调研并分析了海上油气田常用的酸化解堵产能释放增产体系,并重点分析了自生酸体系、复合酸体系以及完井产能释放液体系的应用效果。提出了海上低渗超低渗气藏产能释放增产技术的发展趋势。
Due to the low natural productivity of offshore low permeability and ultra-low permeability reservoirs,it is necessary to adopt certain reservoir modification measures to release the productivity of oil and gas wells.By investigating the fracturing stimulation technology commonly used in low permeability reservoirs at home and abroad,and analyzing the feasibility of its application in offshore low permeability reservoirs,the results show that the offshore low permeability and ultra-low permeability gas reservoirs are not suitable for large-scale acidizing fracturing because of the influence of completion mode,operation space and economic cost.Conventional acidizing plugging removal measures are more suitable for offshore low permeability reservoirs because of their good stimulation effect,convenient construction and low cost.This paper investigates and analyses the commonly used acidizing plugging removal productivity release and stimulation systems in offshore oil and gas fields,and emphatically analyses the application effects of authigenic acid system,composite acid system and completion productivity release fluid system.The development trend of productivity release and stimulation technology for offshore low permeability and ultra-low permeability gas reservoirs is put forward.
Due to the low natural productivity of offshore low permeability and ultra-low permeability reservoirs,it is necessary to adopt certain reservoir modification measures to release the productivity of oil and gas wells.By investigating the fracturing stimulation technology commonly used in low permeability reservoirs at home and abroad,and analyzing the feasibility of its application in offshore low permeability reservoirs,the results show that the offshore low permeability and ultra-low permeability gas reservoirs are not suitable for large-scale acidizing fracturing because of the influence of completion mode,operation space and economic cost.Conventional acidizing plugging removal measures are more suitable for offshore low permeability reservoirs because of their good stimulation effect,convenient construction and low cost.This paper investigates and analyses the commonly used acidizing plugging removal productivity release and stimulation systems in offshore oil and gas fields,and emphatically analyses the application effects of authigenic acid system,composite acid system and completion productivity release fluid system.The development trend of productivity release and stimulation technology for offshore low permeability and ultra-low permeability gas reservoirs is put forward.
引文
[1] 于喜艳,苏毅,孙林.海上低渗储层酸化增效技术及应用[J].内蒙古石油化工,2017,43(8):62-66.
[2] 张博,王洪斌.海上探井低孔、低渗、高温储层酸化改造技术探讨[J].天津科技,2009,36(5):50-52.
[3] 郭云峰,黄嘉琦.低渗油田储层酸化解堵技术应用[J].辽宁化工,2017,46(11):92-94.
[4] 孔祥迪.油田压裂增产改造工艺技术探讨[J].中国化工贸易,2017,9(5):74-74.
[5] 张舟瑞.水平井多级分段压裂设计优化研究[D].青岛:中国石油大学(华东),2013.
[6] 姚展华,张世林,韩祥海,等.水平井压裂工艺技术现状及展望[J].石油矿场机械,2012,41(1):56-62.
[7] 赵峰,杨兴,洪曦,等.水平井压裂工艺技术现状及展望[J].石化技术,2017,24(6):245-245.
[8] 林朋.兴隆台潜山投产配套修井技术运用与发展[D].大庆:东北石油大学,2014.
[9] 张磊.有机酸在海上油田酸化中的应用[J].石油化工,2011,40(7):770-774.
[10] 黄荣贵,黄晓东.海上油田油井酸化处理工艺优化研究及应用[J].石油化工应用,2016,35(1):5-10.
[11] 祝志敏.南堡油田酸化解堵工艺技术综合研究[D].成都:西南石油大学,2017.
[12] 宋瑞.海上N气田低孔渗气藏探井测试解堵增产技术研究[D].成都:西南石油大学,2015.
[13] 许定达,任坤峰,赵林,等.海上稠油区块高效复合酸化解堵技术研究与应用[J].科学技术与工程,2016,16(27):157-160.
[14] 张崇,任冠龙,靳书凯,等.海上低孔低渗气田抗高温完井产能释放液的研究[J].钻井液与完井液,2018,35(6):130-134.
[2] 张博,王洪斌.海上探井低孔、低渗、高温储层酸化改造技术探讨[J].天津科技,2009,36(5):50-52.
[3] 郭云峰,黄嘉琦.低渗油田储层酸化解堵技术应用[J].辽宁化工,2017,46(11):92-94.
[4] 孔祥迪.油田压裂增产改造工艺技术探讨[J].中国化工贸易,2017,9(5):74-74.
[5] 张舟瑞.水平井多级分段压裂设计优化研究[D].青岛:中国石油大学(华东),2013.
[6] 姚展华,张世林,韩祥海,等.水平井压裂工艺技术现状及展望[J].石油矿场机械,2012,41(1):56-62.
[7] 赵峰,杨兴,洪曦,等.水平井压裂工艺技术现状及展望[J].石化技术,2017,24(6):245-245.
[8] 林朋.兴隆台潜山投产配套修井技术运用与发展[D].大庆:东北石油大学,2014.
[9] 张磊.有机酸在海上油田酸化中的应用[J].石油化工,2011,40(7):770-774.
[10] 黄荣贵,黄晓东.海上油田油井酸化处理工艺优化研究及应用[J].石油化工应用,2016,35(1):5-10.
[11] 祝志敏.南堡油田酸化解堵工艺技术综合研究[D].成都:西南石油大学,2017.
[12] 宋瑞.海上N气田低孔渗气藏探井测试解堵增产技术研究[D].成都:西南石油大学,2015.
[13] 许定达,任坤峰,赵林,等.海上稠油区块高效复合酸化解堵技术研究与应用[J].科学技术与工程,2016,16(27):157-160.
[14] 张崇,任冠龙,靳书凯,等.海上低孔低渗气田抗高温完井产能释放液的研究[J].钻井液与完井液,2018,35(6):130-134.