Drilling technologies on shale gas in weiyuan structure

Shale gas resource is becoming the focus of oil gas resource development because of the depletion of conventional resources. Several factors are the obstacle to the industrialized development for shale gas such as long production cycle, low per-well production, rapid depletion of output, slow fund recycle and environmental pollution. Horizontal well technologies are one of the key factors of successful shale gas development and accelerate the development process. Based on the field experiences in Well Wei 201-H1, the first shale gas horizontal well in Longmaxi formation in Weiyuan structure, some key relative technologies have been discussed in this article and would supply technique backup for the drilling planning and technology development in the area.