Greatwall Drilling Company

Greatwall Drilling Company (GWDC), a subsidiary of China National Petroleum Corporation (CNPC) and an IADC member, is engaged in the worldwide business of petroleum engineering and services. As a general contractor, we provide package solutions, from well design to well completion.

Our business scope mainly covers:

Drilling: conventional well drilling, deep and ultra-deep well drilling, directional and horizontal well drilling, under-balanced drilling, workover, acidizing and fracturing, cementing, coring, ......
Logging: wire line logging, mud logging, perforation, well testing, formation and reservoir evaluation;

Energy development: coal-bed methane development technology, heavy oil reservoir development technology, low-permeability gas reservoir development technology, techniques for the exploration of oil-gas reservoirs in peripheral sedimentary basins, artificial island techniques for offshore oil reservoir production;

Others: leasing of drilling equipment and tools, drilling engineering design, technical consultion and training.

With years of development, GWDC employs over 30,000 people of different nationalities working in 33 countries and 14 provinces in China.