Analysis Of Horizontal Well In Western Sichuan Xinchang Gas Field Production Dynamic

The paper deepens the understanding of reservoir geological characteristics of JS21and JS23, analyses reservoir continuity, evaluates the reservoir which is difficult to use synthetically. It analyses the Change law of single well formation pressure by the flowing material balance method, studys the relationship between horizontal gas well output volume and pressure drop, analyses reservoir continuity and gas well productivity dynamically. It calculates single well dynamic geological reserves by pressure drop method and cumulative production method, analyses the extent of the use of reserves and horizontal well recoverable reserves. It evaluates horizontal gas well deliverability through static and dynamic methods, analyses the main control factors that influence horizontal well productivity. Be aimed at horizontal wells producing water, prefers Li Min liquid drop model and amendatory wavy liquid film model through production data and instrument detection, judges whether fluid for horizontal wells. Based on the dynamic production and decline law analysis for different types of horizontal wells, combines the dynamic reserves, the critical liquid carrying flow rate and other factors such as drainage measures, proposes reasonable exploitation work system and suggestions for different types of horizontal wells.The research of the paper is to deepen the understanding of the dynamic production of the horizontal wells. It puts forward suggestions which have certain guiding significance for the rational exploitation of the horizontal gas wells in the region.