In order to solve the problems existing in the development of Nanchuan Shale Gas Field

such as complex geological conditions

drilling leakage collapse

unsatisfactory fracturing effect and lack of effective artificial lifting

the optimization

integration and improvement of development technologies have been completed through in-depth research on drilling and completion technology

fracturing technology and gas production technology

and integration development technologies such as high-efficiency drilling and completion technology

high-efficiency fracturing technology and shale gas well drainage and gas production technology have been formed. Among them

the high-efficiency drilling and completion technology of normal-pressure shale gas mainly includes wellbore structure optimization

bit and screw integrated speed-up technology

limit parameter drilling technology and high-efficiency completion technology; high-efficiency fracturing technology mainly includes integrated all-electric pump fracturing technology

integrated sliding sleeve completion fracturing technology

combined temporary plugging steering technology

etc.; the applicable drainage and gas recovery technology of normal pressure shale gas well mainly includes two processes: single pipe jet pumping and mechanical pumping. Through the popularization and application of the above technologies

Nanchuan Block has formed a complete series of high-efficiency development technologies for normal-pressure shale gas fields in different areas and different well depths has been formed in Nanchuan Block

which has promoted the development of normal-pressure shale gas fields with reduced costs and increased efficiency.