The Study Of Reasonable Well Pattern Deployment In Shengshen2-1 Block Of Xushen Gas Field

The yingcheng group gas reservoir of shengshen2-1 block of xushen gas field is typical ofhaving yingsiduan gritstone and yingsanduan volcanic rock two kinds of reservoir,bigdifference in reservoir permeability,strong heterogeneity,complex gas-water contact,variousrock types,complex lithograph. So we can conclude that it has special characteristic anddifficulty in production quite different from normal gas reservoir,meanwhile,it need moresophistical technology for sake of the hard exploitation.To ameliorate the actual productivityimprove the actual grade of production,expedite the development,and abate the misconduct inthe later decision-making,we come up with a series of researches,which is aiming at the specificproblems in the earlier production period,and is focusing on reserves calculation and evaluationproductivity evaluation, storey of oil exploitation,well pattern development, production rate onthe basis of our further acknowledge of reservoir. Meanwhile,we have provided the technicacountermeasure for the verification of reserves and productivity,and sort the favorabledevelopment, which establish excellent foundation for the expedition of production, and thewise adoption of development proiect.By means of reserves calculation and evaluation, we have justified the productivity andestablished the standard of reserves classification evaluation, understood the distribution ofevery kind of reserve.By means of productivity evaluation, we have established the relationsbetween absolute flow and stratum coefficient, analyzed the distribution of gas-reservoiproductivity and its effect factor and cleared the important factors of affecting gas welstabilization productivity, validated the distribution and scale of the water in gas-reservoir andits influence on gas-reservoir development. Because of the low Permeability,low porosity andstrong heterogeneity, gas reservoir engineering especially the digital simulation method, isemployed to demonstrate the reasonable strouy of gas exploitation, well pattem and spacingproduction rate etc.technical countermeasure for the yingcheng group gas reservoir. By meansof conducting technology and economy evaluation, we have chosen a project to be the goodwell net.The above results have great significance in workouting gas-reservoir exploitationproject ,improving gas-reservoir exploitation level and gas-reservoir exploitation benefit.