Petroleum Exploration and Development >
Quantitative evaluation of lateral sealing of extensional fault by an integral mathematical-geological model
Received date: 2020-07-30
Revised date: 2021-04-28
Online published: 2021-06-23
Supported by
China National Science and Technology Major Project(41872153);Northeast Petroleum University Research Startup Fund(1305021839)
To evaluate the lateral sealing mechanism of extensional fault based on the pressure difference between fault and reservoir, an integral mathematical-geological model of diagenetic time on diagenetic pressure considering the influence of diagenetic time on the diagenetic pressure and diagenetic degree of fault rock has been established to quantitatively calculate the lateral sealing ability of extensional fault. By calculating the time integral of the vertical stress and horizontal in-situ stress on the fault rock and surrounding rock, the burial depth of the surrounding rock with the same clay content and diagenesis degree as the target fault rock was worked out. In combination with the statistical correlation of clay content, burial depth and displacement pressure of rock in the study area, the displacement pressure of target fault rock was calculated quantitatively. The calculated displacement pressure was compared with that of the target reservoir to quantitatively evaluate lateral sealing state and ability of the extensional fault. The method presented in this work was used to evaluate the sealing of F1, F2 and F3 faults in No.1 structure of Nanpu Sag, and the results were compared with those from fault-reservoir displacement pressure differential methods without considering the diagenetic time and simple considering the diagenetic time. It is found that the results calculated by the integral mathematical-geological model are the closest to the actual underground situation, the errors between the hydrocarbon column height predicted by this method and the actual column height were 0-8 m only, proving that this model is more feasible and credible.
Yanfang LYU , Xinlei HU , Fengming JIN , Dunqing XIAO , Jiazhi LUO , Xiugang PU , Wenya JIANG , Xiongying DONG . Quantitative evaluation of lateral sealing of extensional fault by an integral mathematical-geological model[J]. Petroleum Exploration and Development, 2021 , 48(3) : 569 -580 . DOI: 10.1016/S1876-3804(21)60046-0
| [1] | LARSEN R M, BREKKE H, LARSEN B T, et al. Structural and tectonic modelling and its application to petroleum geology. Norway: Norwegian Petroleum Society Special Publications, 1992:325-342. |
| [2] | PEI Y W, PATON D A, KNIPE R J, et al. A review of fault sealing behaviour and its evaluation in siliciclastic rocks. Earth-Science Reviews, 2015, 150:121-138. |
| [3] | LINDSAY N G, MURPHY F C, WALSH J J, et al. Outcrop studies of shale smears on fault surfaces. Special Publications of the International Association of Sedimentologists, 1993, 15:113-123. |
| [4] | WEBER K J, MANDL G, PILAAR W F, et al. The role of faults in hydrocarbon migration and trapping in Nigerian growth fault structures. OTC-3356-MS, 1978. |
| [5] | FRISTAD T, GROTH A, YIELDING G, et al. Quantitative fault seal prediction: A case study from Oseberg Syd. Norwegian Petroleum Society Special Publications, 1997, 7(97):107-124. |
| [6] | YIELDING G, FREEMAN B, NEEDHAM T. Quantitative fault seal prediction. AAPG Bulletin, 1997, 81(6):897-917. |
| [7] | FOXFORD K A, WALSH J J, WATTERSON J, et al. Structure and content of the Moab Fault Zone, Utah, USA, and its implications for fault seal prediction. Geological Society London Special Publications, 1998, 147(1):87-103. |
| [8] | YIELDING G. Shale gouge ratio-calibration by geohistory: KOESTLER A G, HUNSDALE R. Hydrocarbon Seal Quantification. Oslo, Norwegian: NPF Special Publication, 2002, 11(2):1-15. |
| [9] | BRETAN P, YIELDING G, JONES H. Using calibrate shale gouge ratio to estimate hydrocarbon column heights. AAPG Bulletin, 2003, 87(3):397-413. |
| [10] | LYU Yanfang, HUANG Jinsong, FU Guang, et al. Quantitative study on fault sealing ability in sandstone and mudstone thin interbed. Acta Petrolei Sinica, 2009, 30(6):824-829. |
| [11] | LYU Yanfang, WANG Wei, HU Xinlei, et al. Quantitative evaluation method of fault lateral sealing. Petroleum Exploration and Development, 2016, 43(2):310-316. |
| [12] | FU Xiaofei, FANG Deqing, LYU Yanfang, et al. Method of evaluating vertical sealing of faults in terms of the internal structure of fault zones. Earth Science—Journal of China University of Geosciences, 2005, 30(3):328-336. |
| [13] | LYU Yanfang, SHA Zixuan, FU Xiaofei, et al. Quantitative evaluation method for fault vertical sealing ability and its application. Acta Petrolei Sinica, 2007, 28(5):34-38. |
| [14] | HUBBERT M K. Entrapment of petroleum under hydrodynamic conditions. AAPG Bulletin, 1953, 37(8):1954-2026. |
| [15] | SMITH D A. Sealing and nonsealing faults in Louisiana Gulf Coast Salt Basin. AAPG Bulletin, 1980, 64(2):145-172. |
| [16] | GRAULS D J, BALEIX J M. Role of overpressures and in situ stresses in fault-controlled hydrocarbon migration: A case study. Marine and Petroleum Geology, 1994, 11(6):734-742. |
| [17] | SHI Jijian, LI Lili, FU Guang, et al. Quantitative evaluation method and application of vertical sealing property of faults in caprock. Journal of Jilin University (Earth Science Edition), 2012, 42(s2):162-170. |
| [18] | BROWN E T, HOEK E. Technical note trends in relationships between measured in-situ stress and depth. International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1978, 15(4):211-215. |
| [19] | ZHAO Dean, CHEN Zhimin, CAI Xiaolin, et al. Analysis of distribution rule of geostress in China. Chinese Journal of Rock Mechanics and Engineering, 2007, 26(6):1265-1271. |
| [20] | TONG H M. A new model for the origin and evolution of the rift basin fault-systems in the east and south China: A case study from Beibuwan Basin. Ankara: Tectonic Crossroads: Evolving Orogens of Eurasia-Africa- Arabia Conference,2010. |
| [21] | MA Liang. The dynamics simulation on migration and accumulation of oil-gas prediction of exploration targets in Nanpu Depression, Bohai Bay Basin, China. Beijing: China University of Geosciences, 2009. |
| [22] | TANG Jianrong, WANG Hua, MENG Lingjian, et al. Pressure evolution and its effect on petroleum accumulation in Nanpu Sag, Bohai Bay Basin. Earth Science, 2016, 41(5):809-820. |
| [23] | CAO Zhonghong, ZHANG Hongchen, LIU Guoyong, et al. Main control factors and distribution prediction of high- quality carbonate reservoirs in the Nanpu Sag, Bohai Bay Basin. Oil & Gas Geology, 2015, 36(1):103-110. |
| [24] | FU Guang, LI Shizhao. Restoration method of closed evolution history of fractured mudstone cap rock and its application. Earth Science, 2017, 42(9):1590-1598. |
| [25] | XU Ke, DAI Junsheng, SHANG Lin, et al. Characteristics and influencing factors of in-situ stress of Nanpu Sag, Bohai Bay Basin, China. Journal of China University of Mining & Technology, 2019, 48(3):570-583. |
| [26] | WAN Tao, JIANG Youlu, DONG Yuexia, et al. Studying on hydrocarbon accumulation stages and its process in the 1st tectonic belt of Nanpu Depression. Journal of Oil and Gas Technology, 2011, 33(8):26-30. |
| [27] | WANG Siqi, XIAN Benzhong, WAN Jinfeng, et al. Reservoir characteristics and controlling factors in the offshore areas, the Eocene Period of the Nanpu Sag. Journal of Northeast Petroleum University, 2015, 39(4):54-62. |
| [28] | HU Xinlei, LYU Yanfang, FU Guang, et al. Quantitative evaluation of fault vertical sealing ability of 1st structure in Nanpu Sag. Earth Science, 2019, 44(11):3882-3893. |
/
| 〈 |
|
〉 |