Why did you choose Great Wall Drilling?

Because the Great Wall is well drilled. Due to the strong market ability, outstanding talent and technical advantages, complete specialties, high degree of internationalization and obvious overall advantages, China Petroleum Great Wall Drilling Engineering Company (hereinafter referred to as Great Wall Drilling, hereinafter referred to as GWDC) was established in February 2008, which was composed of the former China Liaohe Petroleum Exploration Bureau and China Petroleum Logging Technical Service Co., Ltd., and is a professional petroleum engineering technical service company directly under China Petroleum and Natural Gas Group Corporation.