Distribution Of Gas-Water And Water Production Rule In Sulige Gas-area

Sulige gas area is a typical lithologic.gas reservoir with low permeability, because of theeffect of reservoir properties and heterogeneity, there are different degrees of output waterphenomenon in the development process of it,however, it is not clear to undstand the sourcesof output water, which brings some difficulties to the exploration and development of gas area.This paper have a study on reservoir characteristics and hydrochemical features of the studyarea by integretade use logging, core, thin section, mercury, data of water quality analysis,combining with the production and gas test data, through the calculation of water influx andcondensate water;determine the output water in this area mainly comes from interlayer waterof He8formation, on the basis of understanding of the controlling factor of the distribution ofGas-Water, give a comprehensive judgment that the distribution of Gas-water of sulige gasarea is influenced by reservoir heterogeneity in longitudinal, Gas-Water in the “lenticular”distribution; the scope of horizontal gas distribution in He8and Shan1formation is wider,water bodies scattered in the study area and discontinuous, the most development of formationwater in the lower part of He8formation and the least water bodies in Shan1formation, Thusfurther studied the water-yielding pattern of the region.This study make a objectivity recognition and evaluation of distribution of Gas-Water andWater Production Rule in Sulige Gas-area, which can provide reasonable basis for efficientlybuild production of gas field.