Research In Reservoir Characteristics And Logging Evaluation Technology Of Shale Gas

On the basis of a large number of experimental analysis to P1 well and N1 well,R1 well,H1 well,the Pengshui and Nanchuan generation anddistribution as well as the creek,the dragon group shale and shale Huangping are nine door blunt group,this paper analyzes the reservoir characteristics,mainly including petrological characteristics and pore structure characteristics,reservoir physical characteristics and gas-bearing characteristics.Analysis,gas content and mineral composition of shale correlation is not strong.Shale poor physical properties,mainly controlled by the TOC,Ro,preservation conditions and other factors.Using argon ion polishing scanning electron microscopy(sem),could be divided into micro crack,shale pore hole and so on six types,organic matter and the origin has carried on the preliminary discussion;Using gas adsorption at low temperature and high pressure mercury intrusion method,quantitative analysis of shale pore size distribution.Response characteristics through the analysis of gas shale logging data,combined with the experimental test and log data analysis,using the method of regression analysis,respectively,sets up an evaluation technology for shale lithology and physical property parameters evaluation technology,geochemical evaluation technology and air content evaluation and technology.