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| Keywords | |
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Junggar Basin��Jimusar sag��Wutonggou Formation��diagenesis��reservoir quality |
| Authors | |
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SUN Jing |
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XUE Jing-Jing |
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WANG Bin |
| PubMed | |
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Article by Sun, J. |
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Article by Xue, J. J. |
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Article by Wang, B. |
Diagenesis and its influence to reservoir quality of Permain Wutonggou Formation in Jimusar sag of Junggar Basin
SUN Jing, XUE Jing-Jing, WANG Bin
Research Institute ofExploration and Development��Xinjiang Oilfield Company��PetroChina��Kararnay 834000��Xinjiang��China
Through the data of cores��casting slides and scanning electron microscope��the authors study the diagenesis of Perman Wutonggou Formation in Jimusar sag of Junggar Basin��The results show that the reservoir diagenesis in Wutonggou Formation are compaction��cementation and denudation��in which the compaction and cementation are the main diagenesis to control reservoir quality��The compaction which make reservoir porosity decreasing is mechanical compaction��the main cementation is calcite or ferrocalcite cementation��secondly is secondary clay minerals cementation��which is the key factor of permeability reduce��the denudation is mainly the feldspar particles denudation with limited improvement to reservoir physical property��which is not leads to secondary porosity devel— opment zone��