摘要
老292潜山含油层系为下古生界和太古界,是潜山裂缝性油藏。由于该潜山裂缝储层非均质性强、成藏条件复杂,勘探开发的难度非常大。为提高该类储层预测的精度,在对潜山界面进行准确的地震地质标定、对潜山构造进行精细地震解释的基础上,本文应用构造正、反演裂缝预测方法,预测了潜山的裂缝分布和方位:老292潜山下古生界主要发育近东西向裂缝,其次为北东、北西向裂缝,南北向裂缝不太发育;不同方向裂缝中,以近东西向和北东向裂缝的开启性最好,其次是北西向裂缝,而近南北向裂缝的开启性相对较差。在有利目标区进行井位设计取得较好的效果,证实了该区裂缝储层预测方法的可靠性。
The oil-bearing strata for old 292 buried hill belong to Lower Paleozoic and Archeozoic,they are buried hill fractured reservoirs. Due to their strong heterogeneity and complicated accumulation conditions,it is very difficult to explore and develop the reservoirs. In order to improve the prediction accuracy for this kind of reservoir,some basic works were conducted,such as the accurate geological and seismic calibration for buried hill subsurface and the detailed seismic interpretation for the buried hill structure,then the structural forward modeling and inversion method of fractures were used,so the distribution and orientation of the fractures in the buried hill were predicted as below:for the Lower Paleozoic strata in the old 292 buried hill mainly developed the nearly East-Westward fractures,NE and NW fractures also developed,NS fractures were less developed,among the fractures in different directions,the extent of the openness for all the fractures are listed below (from good to poor),nearly EW and NE,NW and nearly NS. The satisfied effects were achieved for the well location designing in the favorite target zones,and the reliability of the fractured reservoir prediction method in this area was proved.
出处
《石油地球物理勘探》
EI
CSCD
北大核心
2010年第5期737-740,共4页
Oil Geophysical Prospecting
关键词
潜山
裂缝性储层
构造正反演
预测
下古生界
太古界
buried hill,fractured reservoir,structurally forward and inverse technique,prediction,Lower Paleozoic,Archeozoic
