tight gas

With the progress made in exploration, Daqing exploration area has entered the exploration stage of thin interbedding lithologic oil and gas reservoirs with low-permeability and compact gas layers, and the fracturing and stimulation techniques are becoming the conventional techniques for increase of production and reserves.

随着勘探工作的深入,大庆探区进入低渗透薄互层岩性油气藏和致密气层勘探,压裂增产技术已成为增产上储的常规技术,压裂工作量逐年增多。

This paper analyzes log responses of tight formations and tight gas reservoirs, correlates vertical formations in a same well and lateral formations in different wells and intra-formational response as well, uses graphic calibration method, analyzes the characteristics of logging curves of tight formations from different perspectives, and thus determines gas potential of tight formation.

在对致密地层和致密气层测井响应特征进行分析的基础上,利用同井纵向对比观察、不同井横向对比观察、层内对比观察分析及图形刻度显示法,从不同角度分析了致密地层测井曲线的变化特征,进而确定了致密地层的含气性,取得了较好效果。