Discussion On Distribution Of Gas-water In Eastern Sulige Gasfield

Sulige gas area is a typical sandstone gas reservoir with low permeability, with thedevelopment of gas production, there are different degrees of output water phenomenon in partareas, which brings some bad influence on production of gas well and exploitation effect. Thispaper have a study on tectonic characteristics, distribution of sand bodies, sedimentary faciesfeatures, four characters of reservoir and gas-water identification of the study area byintegrated use core, logging, test data and production data, combining with the analysis ofchemical features of the formation water, water type of formation water and output water andproduction and gas test data, give a comprehensive judgment that the output water in initialstage of this area mainly comes from the stranded liquid of constraction, and the output waterin the later stage mainly comes from interlayer water of He8formation; the distribution ofGas-water of eastern Sulige gas area is influenced by reservoir heterogeneity in longitudinal;Gas-Water in the “lenticular” distribution; he scope of horizontal gas distribution in He8andShan1formation is wider, water bodies scattered in the study area and discontinuous, the mostdevelopment of formation water in the lower part of He8formation and the least water bodiesin Shan1formation.This study makes a objectivity recognition and evaluation of distribution of Gas-Water ineastern Sulige Gasfield, which can provide a reasonable basis for efficiently build productionof gasfield.