油田三维构造应力场、裂缝与油气运移
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摘要
叙述了地应力与裂缝和油气运移的关系。用有限元法对辽河滩海油田进行了三维构造应力场的模拟计算,给出了地应力场的分布特征及其对裂缝发育和油气运移积聚的控制作用,并对油气积聚的有利地区进行了预测。
The relation among tectonic stress,migration of oil and gas,and fracture are described. It is pointed out that tectonic stress is an important factor for controlling migration of oil and gas. Formation and development of fracture are closely related to tectonic stress. On the bases of tectonic stress measurement,three dimensional stress field is modeled by using finite element method in Liaohe oil field. It is shown that oil and gas are migrated from high stress area to low stress area,and the low stress area is favorable for the formation of oil field. Fractures are predicted by using criterion of Griffith and criterion of Navier-Coulomb,respectively. Favorable area for oil exploration is pointed out.
The relation among tectonic stress,migration of oil and gas,and fracture are described. It is pointed out that tectonic stress is an important factor for controlling migration of oil and gas. Formation and development of fracture are closely related to tectonic stress. On the bases of tectonic stress measurement,three dimensional stress field is modeled by using finite element method in Liaohe oil field. It is shown that oil and gas are migrated from high stress area to low stress area,and the low stress area is favorable for the formation of oil field. Fractures are predicted by using criterion of Griffith and criterion of Navier-Coulomb,respectively. Favorable area for oil exploration is pointed out.
引文
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2VanGolf-RachtT D,RamstadL R.ModellingNorthSea fractured limestone reservoir[A].In:VanGolf-RachtT D ed.Proc. ofOffshore,NorthSea[C].Stavanger,Norway:PantsPress,1976
3宋惠珍.脆性岩储层裂缝定量预测的尝试[J].地质力学学报,1999,5(1):76～84
4曾海容,宋惠珍.碳酸盐岩储层裂缝预测系统研究及其应用[J].岩石力学与工程学报,2000,19(增):1037～1041
5耶格,库克.岩石力学基础[M].北京:科学出版社,1991
6文世鹏,李德同.储层构造裂缝数值模拟技术[J].石油大学学报(自然科学版),1996,20(5):17～24
7王连捷,张利容,袁嘉音.地应力与油气运移[J].地质力学学报,1996,2(2):3～10
8童亨茂,李德同.应力对流体及油气二次运移作用的几种模式[J].石油大学学报(自然科学版),1999,23(2):14～17
9武红岭,王小凤,马寅生等.油田构造应力场驱动油气运移的理论和方法研究[J].石油学报,1999,20(5):7～12
10王连捷,王薇,张利容.地应力驱动油气运移的基本方程及有限元模拟[J].地质力学学报,1999,5(1):27～32
11冯向阳,沈叔敏,刘文英.应力驱动与油气运移势场的剖面研究[J].地质力学学报,1996,2(2):26～30
12段有泉.有限单元法及其在地学中的应用[M].北京:地震出版社,1987
13朱以文,韦庆如,顾约达.微机有限元前后处理系统ViziCAD 及其应用[M].北京:科学技术文献出版社,1993
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