| Author's Name: Deng Xingliang, Qiao Zhanfeng, Wang Peng, Chang Shaoying, He Jun, Li Weiling, Zhao Longfei, Li Chang |
| Institution: PetroChina Tarim Oilfield |
| Abstract: |
| The “fault-dissolved body” formed in burial stage is an important reservoir in the exploration of carbonate in Tarim Basin, but it has been studied weakly. Taking Tazhong 10th Belt as an example, based on the analysis of cores, thin-sections, well-logging, and seismic data, it has been known that fault-dissolved bodies formed in burial stage are fracture-cavern reservoirs. Petrographic and geochemical analysis on the fracture-fillings revealed that the fault-dissolved bodies are closely related to the burial dissolution. Simulation experiment on the burial dissolution and distribution of fault-dissolved bodies suggest that the development of them is controlled by faults and pre-existing porous zones, which with both fault-controlled features and strata-controlled features. It has been concluded that the prediction of fault-dissolved reservoir should focus on characterizing the distribution of pre-existing porous zones which related to the unconformities and/or the variable lithologic layers. |
| Keywords: Fault-dissolved body; Reservoir feature; Reservoir origin; Reservoir development; Ordovician; Tazhong area; Tarim Basin |
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投稿时间：
2017-02-08 |
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