The Research And Application Of Surig Well Logging Interpretation

Affected by the sedimentary environment,diagenesis,tectonics etc,the reservoir of Surig Gas-field belong to the typical large gas reservoir of low porosity,low permeability,low yield,and low abundance.It's main productive zone is situated in the segment 8 of the lower Shihezi Formation and the segment 1 of the upper Shanxi Formation.In the mid and later development of the gas field,the reservoirs well-logging secondary interpretation has important significance to research residual gas distribution and achieve stable production potential.The basic characteristics of the gas reservoir are briefly discussed,core data,logging data and gas testing data are comprehensive used,the typical geological parameters of well logging curve about porosity,permeability,saturation,shale content are analyzed,the method of the core data location and normalization of geophysical logging are researched.Mainly studied the well logging series and data standardization,established the practical secondary logging interpretation model,and determined the lower limit of effective reservoir thickness and reservoir judging criterion.With the studying of gas-bearing and old well re-examination in the research area,shows that the coincidence rate of results about well-logging secondary interpretation and gas test reached 94.11%,the new discovered potential gas reservoir will provide a basis for tapping potential and increasing production in the follow-up development of the gas field.