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01 December 1993, Volume 14 Issue 4 Previous Issue    Next Issue

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TENTATIVE IDEAS OF EXPLORATION IN THE NEAR FUTURE IN SOUTHWEST REGION OF TARIM BASIN Li Xibin 1993, 14 (4):  301-306.  Abstract ( 151 )   PDF (555KB) ( 182 )   Save The tentative ideas of exploration in the near future in the southwest region of Tarim Basin are: (1)to enlarge oil and gas bearing diomain of the Kekeya oil and gas field, (2)to put drilling emphasis on the Qukuqiake structure and the Yingjisha anticline,and (3)to carry out a horough seismic investigation in the Keliyang, Yuliqun and Qibei structures. Related Articles | Metrics

SEDIMENTARY DEVELOPMENT AND PETROLIFEROUS PROSPECTS IN NORTHEAST REGION, TARIM BASIN Zhang Shouan, Luo Chuanrong 1993, 14 (4):  307-313.  Abstract ( 83 )   PDF (725KB) ( 394 )   Save The northeast region of the Tarim Basin underwent two maior sedimentary stages ; the Sinian to Early Per mian platform and the Late Permian to Mesozoic and Cenozoic terresirial oasin. There were four sets of marine formations,one paralic formation,one terresttial coal bearing formation which generates hydrocaroons, two fluviolacustrine gyp-sum bearing formations, and Quaternary accumulation. ln the region, there were plenty of source rocks, well-de-veloped caprocks and reservoits,hydtocar o0n generation siage was well natched with lrap formation. Many kinds of il andi gas reservoirs of the narine, paralie and terrestrial facies were formed. The region has good conditions of petroleun geology,and is one of the most important replacing arcas in the development of the oil and gas industry. References | Related Articles | Metrics

HEAT FLOW MEASUR EMENTS OF HUOSHAOSHAN OLTELD Zhang Huirong, Song Yunwei 1993, 14 (4):  314-317.  Abstract ( 92 )   PDF (279KB) ( 192 )   Save According to the analysis of 19 cores from 5 wells and the geothermal data of 8 wells, the regional average geothermal gradient and uncorrected heatflow in the Huoshaoshan oilfield of the eastern Junggar basin were calculated 23. 696C /km and 40. 84mW/m2. These two values were both lower than the average of the basins of the east part of China and global continents. References | Related Articles | Metrics

THE DEPOSITIONAL ENVIRONMENT MAP AND ANALYSIS OF OIL RESERVOIR FORMATION CONDITION OF BURIED HILLS Wang Bing 1993, 14 (4):  318-322.  Abstract ( 102 )   PDF (450KB) ( 119 )   Save The depositional environment map of buried hills js a comprehensive map which reflects petrol!eum geology of the buried hills. Detailed mapping method and procedures are as follows: (1)to map the geometric shape of the erosion surface of the buried hills, (2)to do indoor geologic mapping, (3)to deterine the distribution of the drape on the buried hills, and (4)to determine the oil and gas generation area. Stacked and migrated seismic profijies demarcated with regional wildcats and having certain precision are the fundamental Cata used for drawing the depositional envi-ronment map. In the late 70s, these methods were used for the research of oil and gas reservoir formation condition of the buried hills in the western part of the Bohaiwan Basin. References | Related Articles | Metrics

SEQUENCE STRATIGR A PHY OF THE LATE FORELAND BASIN (T-J) IN THE WEST JUNGGAR BOUNDARY MOUNTA INS AND PETROL EUM EXPLORATION Zhao Yuguang, Qiu Dongzhou, Zhang Jiqing 1993, 14 (4):  323-331.  Abstract ( 179 )   PDF (762KB) ( 262 )   Save In this work, we proposed the sequence stratigraphy model of the late foreland basin (T一J) in the west Junggar boundary mountains and the prediction model of oil and gas exploration. At the edge of growth fault, the crossline of lake water and boundary fault was the edge angle of continental shelf, Major Karamay-Urho faulting zone was the folding slope zone. The depositional systems in each system tract were not all the same as matine patterns. Type Ⅰ sequence system tract included alI the composition,type Ⅱ sequence was lack of low level system tract. Type Ⅱ boundary surface was covered directly with transgtesive system tract and reflected the eustatic frequency of lacustrine level change. riassic-Jurassic was divided into 3 sequences and 4 quasi-sequences, and fan delta-tu:bidite fan and other series of reservoirs in high level system tract which was rich in and were pointed to be important targets in the future oil exploration and development. References | Related Articles | Metrics

GENETIC TYPE OF NATURAL GASES IN THE SOUTH MARGIN AND HINTERI AND OF JUNGGAR BASIN Fan Guanghua, Jiang Shaobin 1993, 14 (4):  332-337.  Abstract ( 117 )   PDF (473KB) ( 251 )   Save According to the study of the composition, carbon isotopes and light hydtocarbons'composition of gas seepage,Bas reservoir gas and associated gas in the south margin and hinterland of Junggar Basin, it is considered that they were coal type gas derived from the humic organic matter in the Jurassic coal measures. In the later transformation and evolution, some were oxidided and biodegraded, some were mixed up with the gas with the same source and different maturity. References | Related Articles | Metrics

A METHOD OF LITHOLOGIC ANALOGY INTERPRETATION OF LOGGING AND ITS APPLICATION Zuo Zeguang, Ni Zuo 1993, 14 (4):  338-344.  Abstract ( 100 )   PDF (515KB) ( 125 )   Save With ideal geological volume model and the conductance mechanism of supplied electricity flow model in resistivity logging, a new method, caled lithologic analogy interpretation, of calculating water saturation was induced. Tentative practice showed that g∞od results could be obtained when applied to the logglng analysis of sand/shale sequence. Related Articles | Metrics

GEOLOGICAL R ESEARCH OF SUBDIVIDING SINGLE SAND BEDS IN THE LATE HIGH WATER CONTENT PERIOD OF OILFIELDS Lu Xiaoguang, Yu Hongwen, Tian Donghui, Zheng XingFan 1993, 14 (4):  345-349.  Abstract ( 98 )   PDF (451KB) ( 250 )   Save This paper took the Daqing oilfield as an example to ilustrate the importance of geological research of subdividing single sand beds in the late high water content period. The research of subdividing single sand beds will deepen the un-derstanding of the lateral and vertical distribution of reservoir and surplus oil, and therefore, will provide geological evidence for oilfield adjustment and tapping the potentialities. References | Related Articles | Metrics

HETEROGENEITY AND HETEROGENEITY MODELS OF PLUVIAL CONGI OMERATE RESERVOIRS Liu Shunsheng, Hu Futang 1993, 14 (4):  350-356.  Abstract ( 93 )   PDF (584KB) ( 238 )   Save Applying geological statistics,heterogeneity of pluvial conglomerate reservoirs in the Karamay oilfield was tho-roughly and systematically studied with the help of computer modelling. Based on describing the properties and distri-bution of the high petmeability intervals in the conglomerate reservoirs. we established random section model of the high permeability network.ilustrated the high per meability textures and structures influencing the effect of flooding development of the conglomerate reservoirs, divided four kinds of conglomerate reservoirs, and established the corres-ponding heterogeneity models. References | Related Articles | Metrics

CONTROLLING FACTORS 0F SURPLUS OIL DISTRIBUTION IN THE CONGLOMERATE RESERVOIRS OF KARAMAY一BAIKOUQUAN OILFIELDS Chen Gan 1993, 14 (4):  357-363.  Abstract ( 87 )   PDF (544KB) ( 157 )   Save The Karamay-Baikouquan oilfields were developed with water injection. The distribution and controlling factors of the surplus oil in the water injecting developed resetvoirs were analysed through the behaviour analysis. sealed coring and numeric simulation. Tt was considered that the depositionai environment was the major factor in controlling the surplus oil distribution of the oil reservoirs. References | Related Articles | Metrics

HOW TO CONSIDER THE UNSTABILITY OF RELATIVE PERMEABILITY CURVES IN THE NUMERIC SIMULATION Ma Yonghai 1993, 14 (4):  364-370.  Abstract ( 98 )   PDF (512KB) ( 123 )   Save The unstability of unsteady relative permeability curves was quoted and discussed. The conditions suitable for steady and unsteady permeability curves were studied and therefore. reference for choosing relative permeability curves in the numeric simulation of oil reservoirs were provided. References | Related Articles | Metrics

PVT DATA RECOVERY OF RESER VOIR DEGASSED LIQUID Du Junshe 1993, 14 (4):  371-375.  Abstract ( 103 )   PDF (339KB) ( 162 )   Save Liquid samples of oil reservoirs collected for PVT analysis were often degassed. How to process the PVT analysis data of the degassed liquid samples in order to obtain the properties of the undegassed reservoir liquid and to make the uneffective samples effective? The answer is to recover the PVT data of the degassed samples to the original for mation condition according to the different regulations. The recovered PVT data can be used in the exploration and develop-ment of the oil and gas reservoirs. Practice showed that this method is successful. References | Related Articles | Metrics

TECHNICAL REQUIREMENTS OF COLLECTING CORE AND CUTTING SAMPLES SUITABLE FOR GEOLOGICAL RESEARCH IN OILFIELDS Wang Yilin, Dong Guanghua 1993, 14 (4):  376-379.  Abstract ( 0 )   PDF (388KB) ([an error occurred while processing this directive])   Save Related Articles | Metrics

THE GRAIN SIZE DISTRIBUTION OF JURASSIC IN THE WELL TAI 3-WELL BEI 10 AREA OF THE EASTERN JUNGGAR BASIN Wang Jianping 1993, 14 (4):  380-384.  Abstract ( 103 )   PDF (376KB) ( 133 )   Save Based upon the grain size analysis data of 350 Jurassic core samples from 21 wells of the well Tai 3一well Bei 10 area of the eastern Junggar basin. the characteristics of grain size probability curves of the area were studied. Four kinds and seven models of grain probability curves were induced. The depositional environments they reflected were il-lustrated respectively. References | Related Articles | Metrics

INQURY INTO TH PRAION MCHNEN oF ROLIOER ANTCLINES Qi Dasheng 1993, 14 (4):  385-389.  Abstract ( 141 )   PDF (414KB) ( 399 )   Save Rollover anticlines were the products of two tectoge nesises:the first was the formation of normal faults under the regional tensile stress. the second was the formation of the rollovet anticiines under the regional compressive stress. The fotmation and distribution of the rollover anticlines were controlled by the synchtonous growth faults. The rollover anticlines were generally located in the downthrow walls of the growth faults and distributed like beads. The growth faults in their eatly stage could act as migration paths for oil and gas. Tn the late stage. the growth faults were reformed into sealed compressive structural planes and were favourable to the preservation of oil and gas. Therefore. the rollover anticlines could become advantageous traps for oil and gas. References | Related Articles | Metrics