Integrity Drilling Service Department of Petro-King has taken an active part in the domestic shale gas development project since 2014. The drilling & completion turnkey services for shale gas project in Henan & Guizhou province have been carried out successfully. As the general contractor, Petro-King was responsible for program design, well site construction, drilling & completion, fracturing and well test operation, which made a significant contributions to shale gas development in China.