气体钻井注气模型优选及设备优化配置分析

Optimization of Injection Model for Gas Drilling and Optimal Configuration of the Equipment

摘要:

计算气体钻井注气排量的方法主要有最小动能法和最小速度法。通过对这两种方法的分析，优选出最小动能法并对81/2 in井眼不同井深所需注气量进行计算，同时对影响气体钻井设备配置因素进行分析，最终得出不同条件下气体钻井设备优化配置，为气体钻井经济化施工提供科学依据。

关键词:气体钻井;注气排量;最小动能;最小速度;设备配置

Abstract:

The calculation of gas injection displacement of air drilling methods is mainly by the minimum kinetic energy and the minimum rate law; the paper analyzes these 2 methods, the minimum kinetic energy method was optimized and the injection volume requirement for the hole of 81/2in with different depth were calculated. Analysis was made on the factors affected the gas drilling equipment configuration, and the configurations under different condition were finally determined, which could be the scientific basis for economic construction of gas drilling.

Key words:gas drilling; injection displacement; the minimum kinetic energy; the minimum speed; equipment configuration