劈裂法压裂技术在牛东火山岩油藏中的应用
|
摘要
牛东火山岩油藏岩性、储集结构的复杂性以及物性、含油性和力学性质在分布上的强非均质性,决定了压裂改造机理不同于砂岩油藏,表现为高应力、高滤失、高缝内扭曲、难控缝等技术难题。依据该油藏开发压裂的大量资料,介绍了该油藏储集体特征的研究成果和压裂技术机理;引入岩体力学观点,提出并实施了火山岩劈裂法压裂技术,论述了火山岩劈裂法压裂造缝的特殊机理及施工模式。在该油藏应用结果表明,有效解决了火山岩压裂增产难题,效益显著。
Hydraulic fracturing for well stimulation in the volcanic reservoir was a new problem.The mechanisms of volcanic fracture were very different from that of sandstone reservoir, displaying at technical puzzles such as high stress, high leakoff rate, high contortion in fissure and hard-controlling of fractures .These differences resulted from the complication of its lithologic association and reservoir structure ,the great heterogeneity of its osmose, oiliness and mechanical characters. This article, on the basis of the abundant data, introduces geologic fracturing technique and mechanism of the hydraulic split-fracturing technology. The result indicates that the problem of stimulation volcanic reservoirs is effectively solved .This technology may provide valuable experience for the internal similar reservoir stimulation.
Hydraulic fracturing for well stimulation in the volcanic reservoir was a new problem.The mechanisms of volcanic fracture were very different from that of sandstone reservoir, displaying at technical puzzles such as high stress, high leakoff rate, high contortion in fissure and hard-controlling of fractures .These differences resulted from the complication of its lithologic association and reservoir structure ,the great heterogeneity of its osmose, oiliness and mechanical characters. This article, on the basis of the abundant data, introduces geologic fracturing technique and mechanism of the hydraulic split-fracturing technology. The result indicates that the problem of stimulation volcanic reservoirs is effectively solved .This technology may provide valuable experience for the internal similar reservoir stimulation.
引文
[1]张士诚.低渗透油气藏增产技术新进展[M].北京:石油工业出版社,2006.
[2]中国石油油气藏改造重点实验室.低渗透油气藏压裂酸化技术新进展[M].北京:石油工业出版社,2008.
[3]蔡美峰.岩石力学与工程[M].北京:科学出版社,2002.
[4]凌贤长.岩体力学[M].哈尔滨:哈尔滨工业大学出版社,2002.
[5]郝哲.岩体注浆理论与应用[M].北京:地质出版社,2006.
[6]Blanton T L.Propagation of hydraulically and dynamicallyinduced fractures in naturally fractured reservoirs[J].SPE 15261,1986.
[7]Warpinskin R,Teufel L W.Influence of geologicdiscontinuities on hydraulic fracture propagation[J].JPT,1987,21(3):209~220.
[8]杨丽娜,陈勉.水力压裂中多裂缝间相互干扰力学分析[J].石油大学学报(自然科学版),2003,27(3):43~45.
[9]陈勉,庞飞,金衍.大尺寸真三轴水力压裂模拟与分析[J].岩石力学与工程学报,2000,19(增刊):868~872.
[10]周健,陈勉,金衍,等.多裂缝储层水力裂缝扩展机理试验[J].石油大学学报(自然科学版),2008,32(4):51~54.
[11]周健,陈勉,金衍,等.裂缝性储层水力裂缝扩展机理试验研究[J].石油学报,2007,28(5):206~210.
[12]B.K.阿特金森.岩石断裂力学[M].北京:地震出版社,1992.
[13]中国航空研究院.应力强度因子手册[M].北京:科学出版社,1993.
[14]高延法,张庆松.矿山岩体力学[M].北京:中国矿业大学出版社,2005.
[2]中国石油油气藏改造重点实验室.低渗透油气藏压裂酸化技术新进展[M].北京:石油工业出版社,2008.
[3]蔡美峰.岩石力学与工程[M].北京:科学出版社,2002.
[4]凌贤长.岩体力学[M].哈尔滨:哈尔滨工业大学出版社,2002.
[5]郝哲.岩体注浆理论与应用[M].北京:地质出版社,2006.
[6]Blanton T L.Propagation of hydraulically and dynamicallyinduced fractures in naturally fractured reservoirs[J].SPE 15261,1986.
[7]Warpinskin R,Teufel L W.Influence of geologicdiscontinuities on hydraulic fracture propagation[J].JPT,1987,21(3):209~220.
[8]杨丽娜,陈勉.水力压裂中多裂缝间相互干扰力学分析[J].石油大学学报(自然科学版),2003,27(3):43~45.
[9]陈勉,庞飞,金衍.大尺寸真三轴水力压裂模拟与分析[J].岩石力学与工程学报,2000,19(增刊):868~872.
[10]周健,陈勉,金衍,等.多裂缝储层水力裂缝扩展机理试验[J].石油大学学报(自然科学版),2008,32(4):51~54.
[11]周健,陈勉,金衍,等.裂缝性储层水力裂缝扩展机理试验研究[J].石油学报,2007,28(5):206~210.
[12]B.K.阿特金森.岩石断裂力学[M].北京:地震出版社,1992.
[13]中国航空研究院.应力强度因子手册[M].北京:科学出版社,1993.
[14]高延法,张庆松.矿山岩体力学[M].北京:中国矿业大学出版社,2005.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心