塔河油田桑塔木地区石炭系卡拉沙依组储层预测

Reservoir prediction of Carboniferous Kalashayi Formation in Sangtamu block, Tahe Oilfield

刘群利 杨子川

Liu Liqun Yang Zichuan

中国石化 西北油田分公司, 乌鲁木齐 830011

SINOPEC Northwest Company, Urumqi, Xinjiang 830011, China

塔河油田石炭系卡拉沙依组是重要含油层系之一,储层厚度薄,横向变化快,对比追踪困难,储层的空间展布是制约勘探开发的关键问题.通过对桑塔木工区高分辨率资料的研究,重点针对砂地比低的Ⅰ、Ⅱ、Ⅲ砂组内幕发育的条带状地震异常进行分析,并结合井资料标定,运用地层切片、分频混色、精细相干和属性融合等技术,初步建立了一套识别石炭系内幕条带的储层预测方法,取得了良好的应用效果.

The Carboniferous Kalashayi Formation in the Tahe Oilfield is one of the most important oil-bearing formations in the area. Sandbodies are characterized by small thickness and great lateral variation. A thorough understanding of its spatial distribution is crucial to exploration and production. To tackle the problem, the researchers studied the banded seismic anomalies developed in the sand groups Ⅰ, Ⅱ, Ⅲ with low sand/formation ratio in the Kalashayi Formation based on the high-resolution data from the Sangtamu block. Combined with well data, using strata slice, spectrum color mixing, coherence cube and seismic attribute techniques, a reservoir prediction method was proposed to identify Carboniferous reservoirs, and was proved effective.

https://doi.org/10.11781/sysydz2014S1048