2000 Vol. 6, No. 2

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AN ESTIMATE OF THE RATE OF UNDERGROUND FLUID FLOW FROM WELL-TEMPERATURE DATA IN YING-QIONG BASIN
ZHANG Jian, GE She-min, XU He-hua, XIONG Liang-ping, YANG Ji-hai, ZHANG Qi-ming
2000, 6(2): 1-5.
Abstract (240) PDF (205KB)(8)
Abstract:
The Ying-Qiong basin is a typical high temperature and high pressure basin.The value of heat flow in this basin averages as high as 78.7mW/m2 which is revealed to be caused by active thermal fluid at depth.Based on the relationship between the geothermal field and the activity of underground fluid,w...
THE FULLY COUPLED FLUID-SOLID ANALYSIS FOR THE RESERVOIR ROCK DEFORMATIONS DUE TO OIL WITHDRAWAL
DONG Ping-chuan, LANG Zhao-xin, XU Xiao-he
2000, 6(2): 6-10.
Abstract (236) PDF (193KB)(6)
Abstract:
The effective normal stress in a hydrocarbon reservoir will increase as a result of the decline in pore fluid pressure associated with the withdrawal of fluids,thus leading to a compaction or deformation of the reservoir rocks,with a consequent decrease in permeability and production,and a failure o...
CHARACTERISTICS OF NONMARINE COMPLEX PETROLEUM SYSTEM IN CHINA
QU Hui, ZHAO Wen-zhi, ZHANG Ming-li
2000, 6(2): 11-16.
Abstract (162) PDF (207KB)(19)
Abstract:
The study of petroleum system forms one the hot subjects in petroleum geology,and plays an important role in oil/gas exploration.The petroleum systems in nonmarine multi-cycle composite basins in China shows much complexity with multiple sources,multiple kitchens,multistage hydrocarbon generation an...
DIABASE AND HYDROCARBON RESERVOIR FORMATION ON THE NORTHERN SLOPE OF GAOYOU SAG
LI Ya-hui
2000, 6(2): 17-22.
Abstract (270) PDF (216KB)(10)
Abstract:
Diabase is widespread on the northern slope of the Gaoyou sag.The intrusion of diabase into the oil-and-gas-bearing basin may change the environment of oil and gas formation.This article discusses the relationship between diabase invasion and oil generation,migration and accumulation.It is suggested...
FORMATION OF TAISHAN MOUNTAIN AND CENOZOIC TECTONICISM
ZHANG Ming-li, JIN Zhi-jun, LU Peng-ju, LIU Guo-lin
2000, 6(2): 23-29.
Abstract (299) PDF (292KB)(12)
Abstract:
This paper analyses the Cenozoic tectonism in the Taishan Mountain and the resulting topographic features.It was charactorized by a tilting and uplifting of the northern wall block of the fault front Taishan Mountain during the Cenozoic.Taishan Mountain is a young fault block mountain,being of an ag...
BASIN EVOLUTIONARY DIFFERENCES AND SEISMOTECTONICS OF FENWEI GRABEN SYSTEM
ZHANG Shi-min
2000, 6(2): 30-37.
Abstract (258) PDF (289KB)(25)
Abstract:
Based on their size,total displacement and tectonic style,basins of the Fenwei graben system(northeast of China) can be divided into four types,the infant(or initial),the young(or growing),the mature and the joining ones,each succeeding stage being developed from the preceding one.
From the infant ba...
THE MAGNETIC FABRIC CHARACTERISTICS OF ROCKS FROM ZHONGJIA TIN DEPOSIT AND THE VICINITY,FUJIAN PROVINCE
CHEN Bai-lin, ZHANG Da, WU Gan-guo, CHEN Jin-shui, FANG Li-ming, PENG Run-min
2000, 6(2): 38-44.
Abstract (218) PDF (263KB)(6)
Abstract:
The magnetic fabric of rocks is a reflection of the susceptibility anistropy of the rocks concerned.Magnetic fabric analysis is used in determining the structural features,and the direction of the stresses that produced such features. Study of magnetic fabric features of the Zhongjia tin deposit,Fuj...
DISCUSSION ON PALEOSTRESS MEASUREMENT BY AE METHOD
DING Yuan-chen
2000, 6(2): 45-52.
Abstract (190) PDF (259KB)(10)
Abstract:
Some 14 problems relating to the application of AE paleostress measurement to geological studies are discussed in this paper,in which the creativness,the feasibility,limitations,the applicability and the continued development of the method are emphasized.
ERROR PROCESSING AND PRECISION ESTIMATION FOR ROCK STRESS MEASUREMENT
YONG Xiao-cong, WANG Lian-jie
2000, 6(2): 53-63.
Abstract (301) PDF (344KB)(17)
Abstract:
The least square method for rock stress measurement is described in this paper. The method of precision estimation is improved. Precision estimation is made more reliable using error calculation by the law of covariance propagation. By coordinate transformation of stress we have the differential rel...
CRUSTAL STRESS MEASUREMENT IN NORTHEASTERN QINGZANG PLATEAU BY HYDROFRACTURING
WANG Xue-chao, GUO Qi-liang, ZHANG Hui, LIU Zhen-hong
2000, 6(2): 64-70.
Abstract (299) PDF (277KB)(19)
Abstract:
Measurement of crustal stress by hydrofracturing was first made in northeastern Qingzang plateau.As a result we have a stress state of σHmax > σHmin > σV with the horizontal principal stress trending NE-ENE which agrees with the regional structures.
STRESS MEASUREMENTS AND STUDY OF STABILITY OF THE DAMAO TUNNEL
WU Man-lu, LIAO Chun-ting
2000, 6(2): 71-76.
Abstract (249) PDF (184KB)(15)
Abstract:
The results of stress measurements carried out in the Damao tunnel in Hainan Province indicate that predominantly horizontal maximum compressive stress of no great magnitude trends NWW,which agrees with that of the major compressive faults in the area and focal mechanism solution. The results of a t...
TEMPORAL-SPATIAL PATTERN OF THE MAHUAGOU GOLD ORE DEPOSIT,WESTERN HUBEI, AND THE SEARCH FOR LIKELY LOCATIONS
WEI Chang-shan, XIONG Cheng-yun, JIN Guang-fu, LI Wen-xiang, XIANG Wen-jin
2000, 6(2): 77-81.
Abstract (211) PDF (209KB)(8)
Abstract:
Mahuagou gold ore deposit is a mesothermal-epithermal one controlled by ductile-brittle shear zone.It is characterized spatially by zoning,equidistant distribution and selfsimilarity of the mineralization across the zone,and temporally by pulsation and succession.A search for the most likely locatio...
THE CRUSTAL STRUCTURE AND MODE OF CRUSTAL MOVEMENT IN THE SICHUAN-YUNNAN REGION
LI Guo-he, WANG Si-jin, SHANG Yan-jun, ZHANG Qiang
2000, 6(2): 82-91.
Abstract (176) PDF (347KB)(14)
Abstract:
Based on geophysical features,MT results and velocity structure of the crust and upper mantle in the Sichuan-Yunnan area,the crustal structure and tectonic setting in the deep crust are here presented. It has become clear that the thick crust of the area bordering the Sichuan and Yunnan provinces,ap...

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