• 责任者：Zhu Dongya (Laboratory of Structure and Sedimentary Reservoir ; Research Institute of Petroleum Production ; SINOPEC ; Beijing 100083 ; China) ; Meng Qingqiang
• 刊名：Chinese Journal of Geology
• 出版年：2012
• 卷期：47(1)
• 关键词：流体 ; fluids ; 热力学 ; thermodynamics ; 油气藏形成 ; reservoir formation
• 页码：p.187-201
• 图表：4 illus., 4 tables, 28 refs.
• 分类号：1003
• issnNo：ISSN0563-5020
• isbnNo：CN11-1937/P

There are extensive activities of CO₂-rich deep fluids in Songliao, Bohai Bay and Yingge Sea basins in the eastern China and Tarim Basin in the western China because of extensive and intensive magmatic activities. The result indicates that the solubility of CaCO₃ in the CO₂-rich fluid rises gradually when the fluid migrates from deep to shallow stratum and then reaches to a peak value at some certain depth. A typical example for such rule can be gotten from the central area of the Tarim Basin. Drillings in the center of Tarim Basin indicate that there are numerous dissolution pores in the lower Ordovician carbonates, however there are large amount of calcite fillings in the relatively shallow Ordovician carbonates or Silurian sandstones.