Unconventional oil and gas resources, except for methane hydrate, have been developed and used in some countries and have seen significant results. For example, Canada has made rapid progress in the development of oil sands in recent years. In 2005, the daily oil production plan reached 13.8x 104t, accounting for 43% of the national oil output value. Canada, Venezuela, Russia and other countries produce a lot of oil from oil sands, while Australia, Argentina, Egypt and other countries have all seen outstanding effects in mining oil from low-sea permeable reservoirs. The development of coalbed methane in the United States is the earliest and the longest. Now there are a series of exploration and development skills and corresponding policies to encourage coalbed methane development.
In recent years, because of the presentation of new skills, comprehensive use has been launched, which has greatly improved the economic benefits of oil shale mining. Worldwide, the potential for the development and use of unconventional oil and gas resources is great. From the development of these countries to give us the following enlightenment: a wrong practice of oil and gas is the best supplementary power of conventional oil and gas.
China's unconventional oil and gas resources are abundant and can constitute the planned output value. The amount of coalbed methane resources ranks third in the world, the amount of oil shale resources ranks fourth in the world, and the amount of oil sands resources is relatively small, but they are the best supplementary resources for China's oil and gas resources. Starting from China's national conditions, especially During the period of high oil prices, the exploration and development of unconventional oil and gas resources are actively carried out to compensate for the lack of oil and gas resources.