Geological characteristics and main challenges of onshore deep oil and gas development in China

More than 30 years of continuous development has made onshore deep and ultra-deep conventional and unconventional oil and gas become an integral part of increasing the energy reserves and output by China's petroleum industry. Based on the deep oil and gas geological conditions in the country, the present study finds that paleo stratum and deep burial are the two basic geological characteristics of deep oil and gas. Furthermore, we put forward the notion that it is necessary to strengthen the fundamental research of theories in four aspects and the core technology in five aspects of deep oil and gas. It is suggested that it is of special importance to promote the scientific and technological research of deep oil and gas through the scientific exploration of myriameter deep wells as the starting point, so as to boost the development of deep oil and gas field in China.

Automated summary

The development of onshore deep and ultra-deep conventional and unconventional oil and gas has played a crucial role in increasing China's energy reserves and output in the past 30 years. Based on the geological conditions in the country, the study identifies paleo stratum and deep burial as the two basic characteristics of deep oil and gas. It suggests the need for strengthening theoretical research and core technology development in deep oil and gas, particularly through scientific exploration of myriameter deep wells, in order to boost the development of deep oil and gas fields in China.