Characteristics of burial dissolution in the Ordovician limestone of Tahe Oilfield;

The comprehensive study of some samples from the Ordovician granule limestone in Tarim Basin showed that the burial dissolution could be classified as in-source dissolution and out-source dissolution based on the macro-microcosmic petrology and geochemistry features.

The influences of clastic composition, sedimentary environment and sedimentary facies,temperature -pressure fields,geological fluid and burial process,etc,on the diagenesis of clastic reservoir were discussed.

The effect of farm manure on the dissolution of carbonate rocks and its eco-environmental impact

Based on the study of the sedimentaiotn, diagenesis, tectonic burial history and the heat evolution of organic matter, the authors research the dissolution which is v.

However,the simulative experiment reflects only the dissolution of tuff fillings under open water environment.

A lot of data from casting thin observation show that the pore spaces in the reservoir of Xiazijie-Mahu western slope in Junggar Basin are the pores resulted from corrosion of analcites, calcites and siderites.

The forming times of reservoir corrosion and diagenetic clay minerals, as well as the diagenetic evolution indicated that the Mesozoic reservoir in Kuche Depression received three charges in the Late Paleogene, Late Kangcun Age of Neogene, and Kuche Age of Neogene.

The results indicated that montmorillonite subjected to corrosion in alkaline solutions and produced SiO 2- 3 and AlO - 2 ions in the liquid phase.