断层垂向封闭油气性研究方法及其应用  

METHODS OF RESEARCH ON FAULT-VERTICALLY-SEALED OIL & GAS AND ITS APPLICATIONS

作　　者：付广[1] 李玉喜[1] 张云峰[1] 聂会静 

机构地区：[1]大庆石油学院

出　　处：《天然气工业》1997年第6期22-25,共4页Natural Gas Industry

摘　　要：断层面除受上覆地层重力的作用外，还要受到区域主压应力的作用。在考虑断层面所受上覆沉积物重力和区域主压应力作用的基础上，通过对断层垂向封闭性主要影响因素（断层面压力和断移地层性质）的深入分析，根据泥质岩塑性变形所需要的最小压力，利用断层面压力大小，探讨了断层垂向封闭油气性的研究方法，并将其应用于松辽盆地北部三肇凹陷汪家屯气田Ｗ１、Ｗ２、Ｗ３、Ｗ４断层和长春岭背斜带三站气田Ｓ１、Ｓ２、Ｓ３、Ｓ４断层的垂向封闭天然气的研究中，其研究结果与二个气田的实际地地质条件相吻合，表明该方法用于断层垂向封闭油气性研究是可行的。The fault plane can be acted upon not only by overburden load but also by regional major compressive stress.On the basis of considering this and through a deep analysis of the major factors (fault plane pressure and offset formation lithology) influencing fault vertical sealing property,a method of research on fault-vertically-sealed oil and gas is discussed in light of the minimum pressure needed for the plastic deformation of argillaceous rock and by use of the size of fault plane pressure,and it was applied to the research on the vertically sealed gas by the Faults W 1,W 2,W 3 and W 4 in Wangjiatun gas field in Sanzhan Depression and Faults S 1,S 2,S 3 and S 4 in Sanzhan gas field of Changchunling anticlinal belt in north part of Songliao Basin.The result is in accordance with the practical geological conditions of the two gas fields,which indicates that the method used for the research on fault-vertically-sealed oil and gas is feasible.

关 键 词：断层面 封闭性 油气运移 垂向运移 

分 类 号：P618.130.1[天文地球—矿床学]