Volcanic Rock Gas Reservoir Numerical Simulation And Well Pattern Research In Shengping Gas Field

The volcanic rock reserve of Yingcheng group Shengping gas field has two reserves,Yc3 and Yc4. they all have the characters such as big permeability contrast,serious heterogeneity,complex gas-water distribution,various rock type ,complex lithofacies. It is particularity and difficulty different from Conventional gas field development.The engineering method of development is more complex than Conventional gas field,big difficult in gas field development.in order to improve the development efficiency , increase development level, speeding up gas field development progress, reducing the decision-making mistakes in the intermediary and later stage of development.aiming at the problem of the character of gas field and development early stage. On the basis of deepening the knowledge of reserve and gas field,carry out the study of reserve evalution and estimation,geological modeling work,well network,gas production speed.optimziing reasonable development technology countermeasure that suit for development deployment and gas field characters . make a good basis to speed up gas field prodution speed,making development program correctly, develop gas field scientifically.By evaluation and estimation of reserves, carrying out reserves that we can develop, aiming at the character of the gas field of Yingcheng group,we put forward firstly to established the standard of reserves classification evaluation, beating out the distribution and reserve of every kind of reserve. Making clear the important efficients of effecting gas well stable yields, carry out the scale of water body in the gas field.the basal ground water of gas field has an important effect on the development efficency. Aiming at the character of gas field porosity low,permeability low and heterogeneity strong,using numerical simulation method demonstrate the development technology countermeasure that suit for the layer series of development, pattern well spacing gas production speed of Yingcheng group low permeability gas reserve.and carry out technology efficiency estimation and cost efficiency estimation.at last optimizing a reasonable pattern well spacingl.The results above have great significance in workouting gas-reservoir exploitation project , improving gas-reservoir exploitation level and gas-reservoir exploitation benefit.