| Citation: | Jiaren Ye, Honghan Chen, Xianghua Yang. Fluid Dynamic Field in Bozhong Depression, Bohai Bay Basin. Journal of Earth Science, 2001, 12(1): 84-89.
|
The data from regional geology, boreholes, geophysics and tests are integrated to analyze the fluid dynamic field in the Bozhong depression, Bohai Bay basin. The current geothermal gradient is determined to be about 2.95 ℃/100 m by integrating 266 drill-stem test (DST) measurements and comparing with the global average value. The paleogeothermal gradients are calculated from the homogenization temperatures of saline inclusions, which vary both laterally and vertically. The data from sonic logs, well tests and seismic velocities are used to investigate the pressure variations in the study area. The mudstone compaction is classified as three major types: normal compaction and normal pressure, under-compaction and overpressure, and past-compaction and under- overpressure. The current pressure profile is characterized by normal pressure, slight pressure and intense overpressure from top to bottom. The faults, unconformity surfaces and interconnecting pores constitute a complex network of vertical and horizontal fluid flows within the depression. The fluid potential energy profiles present a"doubledeck"structure. The depocenters are the area of fluids supply, whereas the slopes and uplifts are the main areas of fluids charge.
| Anderson R N, 1992. Sedimentary Basin as Thermo-Chemical Reactors. 1990 and 1991 Report of Lamont-Doherty Geologic Observatory, 68-76 |
| Chen Z M, Xu J Z, 1993. Method of Hydrocarbon Trap Evaluation. Ha'erbin: Ha'erbin Industry University Press. 23-44 (in Chinese) |
| Dahlberg E C, 1982. Applied Hydrodynamics in Petroleum Exploration. New York: Springer-Verlag |
| Du X, Zheng H Y, Jiao X Q, 1995. Abnomal Pressure and Hydrocarbon Acumulation. Farth Science Frontiers, 2(3-4): 137-148 (in Chinese with English Abstraet) |
| England W A, Mackenzie A s, Mann D M, et al, 1987. The Movement and Entrapment of Petroleum Fluids in the Subsurface. Joumal of Geological Socielty of London, 144: 327-347 doi: 10.1144/gsjgs.144.2.0327 |
| Fllippone W R, 1979. On the Prediction of Abomally Pressured Sedimentary Rocks from Data. OTC 3662, 2667-2676 |
| Gong Z S, Yang J M, 1999. Migration Models and Pool-Forming Dynanics. China Ofshore Oil and Gas (Geology), 13(4): 235-239 (in Chinese with English Abstract) |
| Hindel A D, 1997. Petroleum Migation Pathways and Charge Concentration: A Three-Dimensional Model. AAPG Bulletin, 81(9): 1451-1481 |
| Hubbert M K, 1940. The Theory of Ground- Water Motion. Jourmnal of Geology, 48: 783-944 |
| Hubbert M K, 1953. Entrapnent of Petroleum under Hydrodynamice Conditions. AAPG Bulletin, 37(8): 1954-2026 |
| Liu B, Shen K, 1998. Application of Fluid Potential Map Obtained from Fluid Inelusion Data to the Research of Oil-Gas Migration. Geological Science and Technology Information, 17(Suppl): 81-86 (in Chinese with English Astract) |
| Osbome M J, Swarbrick R E, 1997. Mechanisms for Generaing Ovepesure in Sedimentary Basins: A Reevaluation. AAPC Bulletin, 81(6): 1023-1041 |
| Tao Y C, 1983. The Mechanism of Fluid Dynamics about Hydrocarbon Migration and Accumulation. Joumal of 0Oil and Natural Gas Geology, 4(3): 254-268 (in Chinese with English Abstract) |
| Ye J R, Wang L J, Shao R, 1999. Fluid Dynamic Fieds in Pol-Forming Dynamics of Oil and Gas. Joumal of 0il and Natural Gas Geology, 20(2): 182-185(in Chinese with English Abstract) |
| Ye J R, Yang X H, Sun Y C, et al, 1997. A Study on the Tempeature and Pressure Fields in the Qi'nan Sltp-Fault Zone. China ffshore Oil and Gas (Geology), 11(3): 161-167 (in Chinese with English Abstract) |
Figures(8) / Tables(1)
Copyright © 2013-2020 Journal of Earth Science 鄂ICP备15021562号-2
Tel: +86-27-67885075 Fax: +86-27-67885075 E-mail: xbb@cug.edu.cn
Address: Editorial Office of Journal, China University of Geosciences, Yujiashan, Wuhan, Hubei 430074, P. R. China
Supported by:
Beijing Renhe Information Technology Co. Ltd
E-mail:
info@rhhz.net
DownLoad:
