庆深气田钻头类型与钻井参数优选研究

钻井参数的优选是用最优化理论来分析和处理钻井中的数据和资料，从而获得最佳钻井工艺技术的重要依据，它可使钻井进程保持在最优的经济状态下达到预测指标。着重分析了庆深气田的地质概况，以部分已钻井的钻头参数和其它钻井参数之间的关系为基础来建立钻速方程，利用钻速模式求出了下部三个层段的地层可钻性级值，并对其中参数进行回归求解。结合该地区可钻性级值高、地层研磨性强、井底温度高等影响钻速的难点和部分已钻井的钻压、转数、水功率、机械钻速的影响规律进行了探讨，并对该地区深井钻井所遇到的问题提出了一些建议。

RESEARCH ON THE OPTIMIZATION OF BIT TYPE AND DRILLING PARAMRTER IN DAQING GAS FIELD

This paper analyzed the geologic aspects of Qingshen gas field. The drilling rate equation was established on the basis of the relationship between part of used bit parameter and other drilling parameter. Using drilling speed mode cipher out the formation drillability resistance value of three stratiomere, and combine its parameter to carry out regression solution. At the same time, the paper discussed the influences of high formation drillability resistance value, strong stratum abrasive property, high bottom temperature, WOB, revolutions, water power and penetration rate on drilling speed in the area, and proposed some suggestions for the problems encountered in the deep drilling in the area.