摘要
The Huobei block has a very deep nappe with height about 1000m~2500m.In the previous exploration history,the drilling period is very long owing to the low rate of drilling.To speed up the evaluaterating rate,on the foundation of feasibility analysis of gas drilling on Carboniferous layer and Permian layer,the technical measures of drilling parameters、drilling assembly and the conversion of drilling technology are achieved,and the gas drilling technology is applied to the Huobei 021 and Huobei 022.The rate of drilling is raised 3~6 times compared with the other wells.It inspired the new thinking to raising rate and declining cost and increased the knowledge through the application of gas drilling technology on the Huobei block.