1996 Vol. 2, No. 2

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CRUSTAL STRESS AND OIL AND GAS MIGRATION
Wang Lianjie, Zhang Lirong, Yuan Jiayin, Wang Wei
1996, 2(2): 3-10.
Abstract (216) PDF (450KB)(18)
Abstract:
In this paper are discussed the deformation of rock and the pore pressure under the action of crustal stress. The differential equation and finite element formula for fluid flow in a porous rock are described. The oil migration potentials for Liaohe oil field in North China are calculated based on c...
APPLICATION OF ACOUSTIC EMISSION TECHNIQUE IN DETERMINATION OF FOSSIL AND PRESENT-DAYSTRESSES IN OIL FIELDS
Sun Baoshan, Ding Yuanchen, Shao Zhaogang, Zhou Xingui, Wang Xihai, Zhang Daquan
1996, 2(2): 11-17.
Abstract (186) PDF (463KB)(19)
Abstract:
Fossil and present-day rock stresses in the Tabei, Zhongyuan, and the Keerkang Oil Fields have been measured using acoustic emission (AE) technique. It has been found by an analysis of the relationship between known oil/gas distribution and stress state that thepresent sreatest principal stress in t...
PALEOSTRESS IN NORTHERN TARIM OIL FIELD ESTIMATED BY AE
Ding Yuanchen, Sun Baoshen, Wang Xihai, Shao Zhaogang, Zhou Xingui
1996, 2(2): 18-25.
Abstract (172) PDF (566KB)(21)
Abstract:
After a feasibility study of the application of AE method to the measurement of paleostress emphasis is placed on the discussion of the methods used in paleostress measurements and current stress measurements by AE in the paper.
Paleostress measurements by AE in Northern Tarim Oil Field show two-epis...
STUDY OF TECTONIC STRESS CONTROL OF OIL AND GAS MIGRATION IN SECTIONS
Feng Xiangyang, Shen Shumin, Liu Wenying
1996, 2(2): 26-30.
Abstract (174) PDF (346KB)(18)
Abstract:
The formation, migration and accumulation of oil and gas forms a most important subject in petroleum geology. The oil and gas accumulation is thought to be a long continued process in the past geologic time. It seems to the authors that the action of tectonic stress may create the most important con...
STATISTIC ANALYSIS OF SIMILARITIES BETWEEN FENWEI AND BAIKAL RIFT SYSTEMS
Wu Zhenghan, Cui Shengqin, Wang Lianqing, Ma Yinshen
1996, 2(2): 31-40.
Abstract (194) PDF (653KB)(14)
Abstract:
Similarity factors are calculated from both field observations and remote sensing image interpretations for analyzing tectonic similarities between the Fenwei and Balkal rift systems in 7 different aspects by means of statistic methods on the basis of abundant geologic and geophysic data. The simila...
ACTIVITIES OF FAULTS AS DETERMINED FROM THE MICROSTRUCTURAL FEATURES OF THE CLAY GOUGE
Zhang Bingliang, Fang Zhongjing, Li Jianguo, Cui Siping
1996, 2(2): 41-46.
Abstract (370) PDF (542KB)(20)
Abstract:
Fault gouges rich in clay minerals are widely found in natural faults. The history of the activity of a fault is often recorded in the soft and easily deformed fault gouges. In the paper, a modeling of the stick-slip and creep-slip of faults with natural fault gouges is made.The nicrostructural feat...
RESEARCH ON RELATION BETWEEN MICROSTRUCTURES AND MACROSTRUCTURES OF DEFORMED CARBONATE ROCKS
Liu Wencan, Li Dongxu, Zhang Da
1996, 2(2): 47-54.
Abstract (223) PDF (587KB)(19)
Abstract:
Although experimental researches on microfabrics of deformed carbonate rocks and their preferred orientations have been well developed, there still are difficulties in their application to the explanation of the complicated natural structural deformations. The principal aims of this study are:(1) to...
TECTONIC SYSTEM ANALYSIS OF THE FENGHUANG SHAN INTRUSIVE AND ITS EMPLACEMENT
Li Dongxu, Zhang Da, Liu Wengcan, Du Zitu
1996, 2(2): 55-65.
Abstract (194) PDF (727KB)(15)
Abstract:
In this paper, a discussing is made of the location of the Fenghuanshan pluton, in the regional tectonic regime, tectonic evolution before and after the emplacement and the dynamic conditions for the magma emplacement. The foliations and lineations both in the pluton and in the contact zone are syst...
A NUMERICAL ANALYSIS OF THE TECTONIC EVOLUTION OF THE TANLU FAULT ZONE
Wu Hongling, Chen Bolin, Wang Xiaofeng, Wang Wei
1996, 2(2): 66-74.
Abstract (210) PDF (657KB)(26)
Abstract:
In this paper a numerical modeling of the stress and strain fields as well as the displacement rates of the Tanlu fault zone in the principal periods of its tectonic evolution is made using the Finit Element Method for a Newtonian liquid. The causative dynamic origin, the boundary forces and the eff...
NUMERICAL TREATMENT OF MEASURING GROUND STRESS BY THE BOREHOLE DEFORMATION METHOD USING PRE-PRESSED PROBES OF CONTACT TYPE
Zhang Fan, Pan Lizhou
1996, 2(2): 75-82.
Abstract (221) PDF (474KB)(19)
Abstract:
In current measurement of ground stress by the borehole deformation method using pre-pressed probes of contact type, the calibration of probes have been made by Hast's method and by mid-confining pressure method. Both methods have some defects in the derivation of reduced displacements. In 1984, Pan...
NUMERICAL SIMULATION OF STRUCTURAL CONTROL OF GOLD DEPOSITS IN THE XIAODONGYANGHE AREA OF LIAONING PROVINCE
Jiang Xirong, Zhao Yinzhen, Wang Lianjie
1996, 2(2): 83-89.
Abstract (206) PDF (459KB)(14)
Abstract:
This paper studies the geological structure in the Xiaodongyanghe area, Hebei, and proposes a new method for forecasting blind gold ore bodies by means of numerical simulation.
On the basis of intensive field work, we distinguished the synmetallogenic structural system and the main metallogenic stage...
MODELING THE MIGRATION AND ACCUMULATION OF ORE-FORMING ELEMENTS UNDER HIGH TEMPERATURES AND PRESSURES
Chen Zhengle, Zhou Xianqiang, Yang Nong, Chen Xuanhua
1996, 2(2): 90-93.
Abstract (155) PDF (287KB)(19)
Abstract:
Modelling of the migration and accumulation of ore-forming elements in rocks deformed by application of stresses are conducted at different temperatures and pressures. This is found to differ for different elements at the same temperatures and pressures and for the same element at different temperat...
SER DATING OF THE F1 AND F7 FAULTS IN THE ZHANGHEWAN RESERVOIR DISTRICT, HEBEI
Zhang Shukun, Sun Jiashu, Wang Xihai, Feng Yanwei
1996, 2(2): 94-96.
Abstract (145) PDF (206KB)(18)
Abstract:
ESR method was nas used for dating the F1 and F7 faults in Zhanghewan resovoir distict, Hebeiprovince. The results are comparable with that obtained by TL dating before.This indicaes the feasiblity of the method for dating Quaternary faults. As the measured age values are greater than the characteri...

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