Research On Tracking Su48Block Development Effect

Surig gas field is the largest gas field Chinese dress on land, but also low pressure, low permeability, low abundance gas field in Changqing Oilfield, with the construction of50000000tons of pace, Surig gas field has entered the efficient development period, Su48district is the key development areas of South Central Surig West, provenance supply in multi-directional, sedimentary background with gentle slope Braided River Delta environment, resulting in the complex lithology reservoir, vertical and horizontal heterogeneity. Well Su48well area has a larger difference in reservoir characteristics and production rule, single well water production characteristics of complex, poor production conditions of gas reservoir, the urgent need to grasp the dynamic characteristics of production, especially water production mode, and gas pressure, the production decline rule, evaluate the effect of gas well, working system and the production of gas well optimization, in order to reduce the gas reservoir decline rate, improve the production capability of a single well to.Study of the gas well dynamic development data and make full use of the project research, first well after the well area, set up the research methods and the technical flow tracking a set of development effect evaluation, implementation of connectivity, control reserves of single well, gas well production capacity of the reservoir size between wells.This paper analysis on pressure dynamic block Su48203wells, analysis of the law of diminishing yield,151wells,123wells,167wells in the modern decline analysis, formation pressure and bottom hole flowing pressure calculation. And the117well controlled reserves calculation; â… ,â…¡,â…¢ well controlled reserves and discharge radius prediction; simulation analysis of single well numerical recharge mechanism and law of gas well production in low permeability zone, the mechanism of gas well stability conditions of numerical well test and numerical simulation;2well group46well group numerical simulation of the fitting and forecasting, established single well dynamic description method, productivity evaluation model for reserves, through the comparison of various drainage gas recovery technology analysis, the implementation of comprehensive consideration of labor intensity, effect, investment costs and other factors, to summarize the well conditions and conditions of the drainage gas production technology, it can be in Su48block12.8x108m3/a capacity stable gas supply for20years, the reasonable gas recovery rate is1.3%, recovery rate at the end of28.7%, accumulated gas production of312.6*108m3, mining the final degree of37.36%, theoverall scheme index can be feasible.