潜江凹陷东部新沟嘴组轻质油储层测录井特征及产能预测探讨

江汉盆地潜江凹陷东部建新-拖市地区新沟嘴组下段Ⅰ、Ⅱ、Ⅲ油组均发育有低孔、低渗、致密砂岩岩性圈闭,近年来随着勘探工作的深入,该区陆续发现一批轻质油藏。在对建新-拖市地区地层层序和生储盖特征分析研究的基础上,充分利用地质、气测、测井、试油等多项井筒技术资料全面总结了该地区储层的特性,并探索了使用定量手段评价油层产能的技术。

On the Characteristics and Capacity Presumption of Light Oil Reservoirs and Logging Wells in Xingouzui Formation of Eastern Qianjiang Depression

Reservoir groups 1～3 on the lower segment of Jianxin-Tuoshi Xingouzui Formation in the east of Qianjiang depression Jianghan basin had all developed into tight sandstone lithologic trap with low porosity and low permeability.With the proceeding of exploration work in recent years,a batch of light oil reservoirs had been discovered in this area.Based on the study on the stratigraphic sequence and the characteristics of assemblage of source,reservoir,and capping rocks in Jianxin-Tuoshi district,this essay had made the most use of various shaft data obtained from geological survey,gas logging,well logging,oil testing and other techniques to draw up a comprehensive review of the reservoir features in the area and discuss the adoption of quantifying methods to assess the reservoir capacity.