The normal pressure shale gas reservoir within the complex structural belt of Nanchuan has been subject to the influences of multiple tectonic movements. The geological conditions in this region exhibit a high degree of complexity

thereby amplifying the challenges associated with efficient resource extraction. In response

an integrated geological engineering approach

tailored to the unique geological attributes of normal pressure shale gas in the intricate structural belt of Nanchuan

has been devised. This approach is aimed at mitigating challenges such as low rates of drilling in “sweet spots”

reduced mechanical drilling speeds

and suboptimal outcomes in fracturing transformations stemming from the intricacies of geological reservoir structures. In pursuit of optimizing the development of normal shale gas resources

a comprehensive investigation was undertaken

leveraging interdisciplinary knowledge spanning geophysical exploration

geology

drilling and completion

and fracturing techniques. An integrated process was established

fostering collaborative problem-solving and the mutual enrichment of geological and engineering insights. At its core

this approach emphasizes the synergy between geophysical exploration

geology

and engineering

thereby forming a pivotal development technology tailored for normal pressure shale gas reservoirs within complex structural zones. Through practical field applications

notable enhancements have been achieved. Mechanical drilling speeds and the rate of target window drilling in complex structural areas have witnessed significant improvements. Concurrently

the costs associated with fracturing operations have been consistently reduced

yielding improved gas well fracturing outcomes and enhanced productivity. These advancements collectively culminate in the efficient development of the Nanchuan normal shale gas field. Furthermore

they offer invaluable technological insights and experiential wisdom for the efficient extraction of normal shale gas reservoirs in the intricate regions of southeastern Chongqing.