• 责任者：Sun Longde (PetroChina ; Beijing 100007 ; China) ; Zou Caineng
• 刊名：Petroleum Exploration and Development
• 出版年：2013
• 卷期：40(6)
• 关键词：深层气 ; deep gas ; 油气勘探 ; petroleum exploration ; 中国 ; China
• 页码：p.641-649
• 图表：5 illus., 32 refs.
• 分类号：1003
• issnNo：ISSN1000-0747
• isbnNo：CN11-2360/TE

     The onshore exploration realm has been expanded to （ultra-） deep oil and gas in China. New cognition and significant breakthroughs have been made in generation and preservation conditions, reservoirs formation mechanism, exploration potential, petroleum resources assessment, and exploration engineering technology of deep oil and gas. Deep oil and gas reservoirs include clastics, carbonates, volcanics, etc. The temperature of deep oil can be up to 295 ℃. A context of long time of shallow burial and rapid deep burial in late stage helps preserve the pores of deep clastic rocks, and dissolution and fracturing improve their reservoir properties. Affected by faulting, karst hydrothermal process, dolomitization and early oil and gas injection, carbonate rocks have good reservoir properties even at the depth of over 8 000 m. Controlled by tectonism, volcanism, diagenesis and diagenetic reconstruction during supergene and burial stages, deep volcanic reservoirs develop primary and secondary weathering types of reservoirs. Deep oil and gas resources in China are distributed within three main practical areas of carbonate, clastic and volcanic reservoirs. Dominated by gas, some practical areas were formed including the Tarim Basin, Ordos Basin, Sichuan Basin, Junggar Basin, Songliao Basin, Santanghu Basin and Bohai Bay Basin. Deep oil and gas in China have entered an age of breakthrough and discovery. Relevant engineering technologies, such as ultra deep well drilling and ultra high temperature drilling fluid techniques, have the ability to find （ultra-） deep oil and gas.