| Institute of Geomechanics, Chinese Academy of Geological Sciences | Host |
| Citation: |
Chi ZHANG, Tao LI, Jia HU, Miao TIAN. THE FAULT SEALING ANALYSIS OF THE PUTAOHUA OIL LAYER IN THE GULONG OILFIELD[J]. Journal of Geomechanics, 2018, 24(3): 301-308. doi: 10.12090/j.issn.1006-6616.2018.24.03.032
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THE FAULT SEALING ANALYSIS OF THE PUTAOHUA OIL LAYER IN THE GULONG OILFIELD
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Abstract
Faults in the Gulong oilfield are extremely developed. The fault sealing ability plays an important role in controlling the oil and gas migration and accumulation in the study area, so the study of fault sealing is in favor of the prediction of favorable locations for oil and gas accumulation. Qualitative analysis were carried out on the fault sealing ability in the study area from the aspects of fault type, geometric characteristics and buried depth, focusing on the two sides lithology configuration, clay smearing and stress. The sealing evolution history of typical faults was also studied. The results show that the primary and tertiary faults have good sealing ability, while the sealing ability of the secondary faults is ordinary. The fault sealing ability of the nose structure is superior to that of the syncline fault, in which the fault sealing ability of Longnan nose structure is the best.-
Keywords:
- fault sealing ability /
- lithology configuration /
- clay smearing /
- the Gulong oilfield
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References
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Chi ZHANG, Tao LI, Jia HU, Miao TIAN. THE FAULT SEALING ANALYSIS OF THE PUTAOHUA OIL LAYER IN THE GULONG OILFIELD[J]. Journal of Geomechanics, 2018, 24(3): 301-308. doi: 10.12090/j.issn.1006-6616.2018.24.03.032
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- Figure 1. Map of the study area
- Figure 2. The top space diagram of the Putaohua Oil Layer in the Gulong Oilfield
- Figure 3. Faults distribution diagram of the Putaohua Oil Layer in the Gulong Oilfield
- Figure 4. Two sides lithology configuration diagram of the fault 1 (Parallel to the section)
- Figure 5. Fault sealing evaluation diagram of the fault 1 according to two sides lithology configuration (Parallel to the section)
- Figure 6. SSF sealing index diagram of the fault 1 (Parallel to the section)
- Figure 7. Fault sealing evaluation diagram of the fault 1 according to fault lithology and clay smearing (Parallel to the section)
- Figure 8. Fault sealing evolution of the fault 1 (Parallel to the section)
- Figure 9. Diagram of the predicted favorable blocks of the Putaohua Oil Layer in the Gulong Oilfield