Productivity Evaluation Of Horizontal Well In Tight Sandstone Lithologic Gas Reservoir

In recent years,there is no accurate result for the gas well production(capacity)and it's a little bit hard to predict the final result(outcome)of the horizontal well productivity as lot of scholars have mentioned in different papers.And this problem is concerned by many scholars.This research is based on the geological feature of tight sandstone gas reservoir horizontal wells and oil field capacity test conditions.By a large number of actual data and theoretical method of mine comprehensive research,we can summarize a set of suitable for tight sandstone lithologic gas reservoir productivity evaluation method of horizontal Wells.It can provide the certain reference for reasonable allocation of horizontal well.Currently,there are some problems in terms of gas well production methods.This paper is based on the conventional horizontal well production capacity evaluation method,and discuss the gas well's conventional deliverability equation application conditions and the existing problems.This paper build production capacity evaluation method and list the elements that influence the production capacity,such as penetrance?horizontal section length and location etc.And compared with the current production capacity evaluation method and actual calculation comparison through the mechanism model of "one point method" empirical formula value to select the best method to adjust tight sandstone lithologic gas reservoir productivity.This research is based on the geological feature of tight sandstone gas reservoir and oil field capacity test conditions,and we try to build a set of simple and reliable method of evaluate.This method can provide the certain reference for reasonable allocation of horizontal well.