Jialing Group Reservoir Under Study Moxi Triassic

Moxi gas field in the middle of Sichuan Basin is gas field which uses three triassic Leikoupo ray as the main production layer. In order to accelerate the pace of exploitation, it is necessary to look for other replace horizons. At present it is found that the reservoir of the second Jialingjiang formation is good and it has the great development potential, so it is much nescessary to increase the detailed description and evaluation of Jialingjiang formation. From the research of the reservoir rock, reservoir space, reservoir evaluation and the main control factors of Jialingjiang formation Moxi gas field, we can see that Jialingjiang formation, Moxi construction is a set of geological combination which longitudinally superimposed by plenty of reservoirs and caprocks. For the differences of kinds of reservoir spaces and the development, the second section of Jia is mainly pore type reservoir, the fourth to fifth section are mainly fracture pore type reservoir.Combining the resources which offered by the production unit and the research that done by this thesis, the author put forward that the Spatial distribution, form, properties of matter and the pore space’s development of Jialingjiang formation, Moxi construction are influenced by the sedimentary facies. The research on the reservoir’s conditions provided the theoretical basis and research direction for the oil and gas accumulation. The dolomitization pressolution and the denudation offered conditions for optimizing reservoir; the tectonism effects the development of crevices. Also it improves and destroys the migration of the reservoir; the preservation condition influences the distribution and exploitation of gas field directly. Combining the reservoir classification standards which offered by production unit and according to the analysis of controlling factors of the reservoir and the longitudinal and planary distribution of Jialingjiang formation, Moxi construction, this thesis put forwards the south of Jialingjiang formation, Moxi construction’s reservoir can be considered as the main layer which is explored at the moment and the east and west of Jialingjiang formation Moxi construction can be considered as the important layer which will be explored in the future.