东濮凹陷泥页岩脆性指示因子地震预测  

Prediction of shale brittleness using seismic technology in Dongpu Sag

作　　者：李宁[1,2] 郝加良[2] 秦广胜[2] 邓明霞[2] 晋达 

机构地区：[1]中国石化东北油气分公司勘探开发研究院,吉林长春130000 [2]中国石化中原油田分公司物探研究院,河南濮阳457001

出　　处：《断块油气田》2015年第3期338-341,共4页Fault-Block Oil & Gas Field

摘　　要：脆性指示因子是评价泥页岩储层的一个至关重要的参数。在勘探阶段,高脆性泥页岩发育区常发育裂缝,易形成产能,有助于开发区域优选;在开发阶段,脆性指示因子有效预测能为水平井部署、井身设计以及压裂改造提供重要的依据。目前国内利用地震方法预测脆性指示因子空间展布的研究并不广泛。文中利用地震叠前反演得到弹性模量与泊松比2个关键参数,进而预测脆性指示因子。预测结果与已知井的情况符合较好。Brittleness is one of the important parameters to evaluate shale reservoir. At the stage of exploration, the zone of high brittleness shale often contains fractures, production capacity can be easily reached, which contributes to resources evaluation and development area optimization; at the development stage, predicting brittleness effectively can provide an important basis for horizontal well deployment, borehole design and fracturing transformation. Seismic has not been widely applied to predict the distribution of brittleness. By using pre-stack seismic data, we invert to get Young＇s modulus and Poisson＇s ratio, and finally forecast brittleness. The results are in accord with the known wells.

关 键 词：泥页岩储层 脆性指示因子 弹性模量 泊松比 东濮凹陷 

分 类 号：TE122.222[石油与天然气工程—油气勘探]