缝洞型油藏超大规模酸压技术
|
摘要
塔河油田缝洞型油藏主要的储集体空间类型为溶蚀的裂缝及大型的溶洞,连通关系极其复杂,70%的钻井需要酸压才能投产。为进一步沟通远井地带的缝洞储集体,室内模拟及现场监测结果表明,超大规模酸压技术能够提高造缝长度,沟通井眼远处的储集体。通过多口井的研究及现场试验,在油气富集带上具有明显的地震反射异常,生产过程中供液不足的井进行超大规模酸压后增油效果明显,说明超大规模酸压技术是缝洞型油藏增产的有效措施。
Most types of reservoir body space are corroded fissures and large carvens,and the connected components are extremely complex.Hence,70% wells request acid fracturing before they are put into production.To further link up reservoir bodies far away from the wellbores,lab simulation and field trials were made.The simulation and the trials showed extra-large scale acid fracturing can lengthen the fracture initiation and further connect the reservoir body away from the wellbore.The study and tests on many wells in the field prove that the seismic reflection anomaly is obvious along the hydrocarbon accumulation belt and extra-large scale acid fracturing is effective in increasing oil production of the wells which feeding flow is low during the production process.Therefore,the technique of extra-large scale acid fracturing is a valid stimulating measure for fracture-cave typed reservoirs.
Most types of reservoir body space are corroded fissures and large carvens,and the connected components are extremely complex.Hence,70% wells request acid fracturing before they are put into production.To further link up reservoir bodies far away from the wellbores,lab simulation and field trials were made.The simulation and the trials showed extra-large scale acid fracturing can lengthen the fracture initiation and further connect the reservoir body away from the wellbore.The study and tests on many wells in the field prove that the seismic reflection anomaly is obvious along the hydrocarbon accumulation belt and extra-large scale acid fracturing is effective in increasing oil production of the wells which feeding flow is low during the production process.Therefore,the technique of extra-large scale acid fracturing is a valid stimulating measure for fracture-cave typed reservoirs.
引文
[1]王艳伟,肖玉茹,李青山.超深井酸压工艺技术在塔河油田的应用[J].新疆石油地质,2000,21(6):518-519.
[2]伊向艺.碳酸盐岩储层交联酸酸压技术研究与应用[D].成都:成都理工大学,2006.
[3]陈志海,戴勇.深层碳酸盐岩储层酸压工艺技术现状与展望[J].石油钻探技术,2005,33(1):58-62.
[4]周静,林永茂,李佳.裂缝性气藏压裂关键技术[J].钻采工艺,2009(4):44-45.
[5]何新明,陈冀嵋,吴安林.油气藏酸压工艺技术现状与发展[J]断块油气田,2009,16(2):95-98.
[6]田亮,刘杨.塔河油田十二区奥陶系碳酸盐岩储层压裂液、酸液返排机理分析[J].内蒙古石油化工,2009,24:167-168.
[7]White D J.Using a unique acid-fracturing fluid to control fluid lossimprove stimulation results in carbonate formations[J].SPE24009,1992:417-419.
[8]于学忠.乳化酸酸压工艺技术在塔河油田的应用[J].石油钻采技术,2002,30(3):69-71.
[9]王士敏,鲁新便.塔河油田碳酸盐岩储层预测技术[J].石油物探,2004,43(2):153-158.
[10]吕海涛,张达景,杨迎春.塔河油田奥陶系油藏古岩溶表生作用期次划分[J].地质科技情报,2009,28(6):71-75.
[11]Loucks R G.Paleocave carbonate reservoirs:origins,burial depthmodifications,spatial complexity,and reservoir implications[J].AAPG Bulletin,1999,83:1795-1834.
[12]White E L,White W B.Dynamics of sediment transport in lime-stone caves[J].National Speleothem Society Bulletin,1968,30:115-129.
[13]Loucks R G,Mescher P K,McMechan G A.Three-dimensionalarchitecture of a coalesced,collapsed paleocave system in the Low-er Ordovician Ellenburger Group,central Texas[J].AAPG Bulle-tin,2004,88:545-564.
[14]Perona P,Malik J.Scale space and edge detection using anisotrop-ic diffusion:IEEE Trans[J].Pattern Analysis and Machine Intel-ligence,1990,12:629-639.
[2]伊向艺.碳酸盐岩储层交联酸酸压技术研究与应用[D].成都:成都理工大学,2006.
[3]陈志海,戴勇.深层碳酸盐岩储层酸压工艺技术现状与展望[J].石油钻探技术,2005,33(1):58-62.
[4]周静,林永茂,李佳.裂缝性气藏压裂关键技术[J].钻采工艺,2009(4):44-45.
[5]何新明,陈冀嵋,吴安林.油气藏酸压工艺技术现状与发展[J]断块油气田,2009,16(2):95-98.
[6]田亮,刘杨.塔河油田十二区奥陶系碳酸盐岩储层压裂液、酸液返排机理分析[J].内蒙古石油化工,2009,24:167-168.
[7]White D J.Using a unique acid-fracturing fluid to control fluid lossimprove stimulation results in carbonate formations[J].SPE24009,1992:417-419.
[8]于学忠.乳化酸酸压工艺技术在塔河油田的应用[J].石油钻采技术,2002,30(3):69-71.
[9]王士敏,鲁新便.塔河油田碳酸盐岩储层预测技术[J].石油物探,2004,43(2):153-158.
[10]吕海涛,张达景,杨迎春.塔河油田奥陶系油藏古岩溶表生作用期次划分[J].地质科技情报,2009,28(6):71-75.
[11]Loucks R G.Paleocave carbonate reservoirs:origins,burial depthmodifications,spatial complexity,and reservoir implications[J].AAPG Bulletin,1999,83:1795-1834.
[12]White E L,White W B.Dynamics of sediment transport in lime-stone caves[J].National Speleothem Society Bulletin,1968,30:115-129.
[13]Loucks R G,Mescher P K,McMechan G A.Three-dimensionalarchitecture of a coalesced,collapsed paleocave system in the Low-er Ordovician Ellenburger Group,central Texas[J].AAPG Bulle-tin,2004,88:545-564.
[14]Perona P,Malik J.Scale space and edge detection using anisotrop-ic diffusion:IEEE Trans[J].Pattern Analysis and Machine Intel-ligence,1990,12:629-639.
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