东营凹陷G89区块滩坝砂岩含油性控制因素与界限层电性特征分析

Controlling Factor of Oil-bearing Layer and Electricity Character Threshold Value on Beach and Bar Sands in G89 Block,Dongying depression

东营凹陷南部西段博兴洼陷金家-正理庄-樊家鼻状构造带中部的G 89块沙四段滩坝砂岩油藏勘探,近年来取得了重要发现和突破。本文利用试油、试采资料建立了地层视电阻率与声波测井交会图,发现该研究区块平面上存在着差异,矛盾最为突出的表现在常压区与高压区的差异。为了合理、客观制定油层电性界限标准,本文应用成藏动力学分别对高压区、常压区进行了储层含油性控制因素及含油特性分析,此外对含油性储层电性的影响因素进行了进一步研究,在此基础上制定不同的电性界限。

G89 block is located in the middle of Jingjia-Zhengllizhuang-Fanjia structure in the Boxing sag,southwestern Dongying depression.The exploration on E2s4 reservoirs which are belonging to beach and bar faces of G89 block had important discovery and breakthrough in these years.Testing and production testing data are used in this paper to make the stratigraphy resistivity versus acoustic cross plot.The differences on oil-bearing character occurred in the level along G89 block;it s mainly between the convention...