2005 Vol. 11, No. 1

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PETROLEUM-FORMING CHARACTERISTICS OF COMPRESSIONAL SUPERIMPOSED BASINS IN NORTHWESTERN CHINA
KANG Yu-zhu
2005, 11(1): 1-10.
Abstract (173) PDF (320KB)(9)
Abstract:
The western region of China covers an area of 2.60 million km2, where more than 100 oil/gas fields have been found and there are very abundant oil/gas resources. Through several decades of research and exploration, the petroleum-forming characteristics of compressional superimposed basins in the reg...
NUMERICAL MODELING OF THE ACCUMULATION-FORMING HISTORY OF THE KONGXI BURIED HILL,BOHAI GULF BASIN
MENG Yuan-lin, WANG Yue-chuan, LUO Xian-ying, GAO Jian-jun, XIAO Li-hua, ZHOU Xin-gui, YIN Xiu-lan, WANG Zhi-guo
2005, 11(1): 11-18.
Abstract (233) PDF (340KB)(9)
Abstract:
A new numerical modeling system of the accumulation-forming history is established by numerical modeling of the essential elements of accumulation formation in carbonate rocks including source rocks, reservoir rocks, seal rocks, traps, primary migration and preservation,and the Kongxi buried hill te...
FAULT SEAL MODEL OF THE CENTRAL UPLIFT, DONGYING DEPRESSION
XU Shou-yu, LI Xue-yan
2005, 11(1): 19-24,59.
Abstract (209) PDF (217KB)(9)
Abstract:
Fault systems in the Central uplift of the Dongying depression are complex. The fault sealing properties directly control the formation and distribution of the oil/gas accumulation as well as its size and type. Large oil/gas accumulations may form near a fault with good sealing properties, while sma...
ANALYSIS OF THE MESOZOIC ACCUMULATION-FORMING DYNAMIC SYSTEM IN THE SOUTHERN ORDOS BASIN
ZHANG Ke-yin
2005, 11(1): 25-32.
Abstract (204) PDF (332KB)(7)
Abstract:
The main dynamic force driving the migration of Mesozoic hydrocarbons in the southern Ordos basin was mainly hydrostatic pressure in the upper part and differential compaction in the lower part. According to the dynamic characteristics, development of the hydrocarbon source and sealing conditions, f...
MECHANISM OF NATURAL FRACTURE FORMATION IN THE UPPER PALEOZOIC TIGHT SAND GAS RESERVOIRS IN THE TABAMIAO AREA, NORTH ORDOS BASIN
XING Zhen-hui, CHENG Lin-song, ZHOU Xin-gui, KANG Yi-li, ZHANG Lin-yan
2005, 11(1): 33-42.
Abstract (192) PDF (924KB)(8)
Abstract:
It is very hard to develop effectively the Upper Paleozoic low-pressure, low-porosity, low-permeability tight sand gas reservoir in the Tabamiao area, northern Ordos basin. The existence of natural fractures in tight gas sand can change the situation dramatically by improving greatly the permeabilit...
ANALYSIS OF THE FEATURES OF SEQUENCE STRATIGRAPHY AND SPATIAL DISTRIBUTION OF SANDSTONEs IN THE BAODAO AREA, QIONGDONGNAN BASIN
WU Li, SHI Wei
2005, 11(1): 43-52.
Abstract (224) PDF (975KB)(8)
Abstract:
Based on the principle of sequence stratigraphy, according to the analysis of seismic and well-log sequence stratigraphy, fourteen seismic depositional sequences are identified in the Tertiary of the Baodao area, Qiongdongnan basin, and the characteristics of various sequences are analyzed. In addit...
APPLICATION OF LOGGING INFORMATION IN THE ANALYSIS OF THE GROUND STRESS IN THE FORELAND COMPRESSIVE AREA
ZHAO Jun, PU Wan-li, WANG Gui-wen, LI Jun
2005, 11(1): 53-59.
Abstract (152) PDF (247KB)(11)
Abstract:
Compressive tectonic stress is the main stress in foreland basins in western China,where surface and subsurface structures are very complicated.Petroleum exploration and development call for not only the intensive study and prediction of ground stresses but also simple,economical and practical appro...
FAULT CONTROLS ON OIL AND GAS IN THE MOSUOWAN AREA,JUNGGAR BASIN
WU Kong-you, ZHA Ming, WANG Xu-long, GUO Zhi-qiang
2005, 11(1): 60-66.
Abstract (179) PDF (305KB)(6)
Abstract:
The strata overlying the Triassic in the Mosuowan on the whole occur as a monocline and the traps are mostly related to faults,which may fall into the deep and shallow fault systems.Deep faults are reversed ones developed in the Carboniferous to Permian,while shallow faults are tensional and tenso-s...
FORMATION CONDITIONS AND DISTRIBUTION CHARACTE-RISTICS OF LITHOLOGICAL RESERVOIRS IN THE QIANJIANG SUBBASIN
HU Hui
2005, 11(1): 67-73.
Abstract (283) PDF (281KB)(9)
Abstract:
The unidirectional,multi-source,saline-lake sedimentary system and structural background of the Qianjiang subbasin are the necessary geological conditions for the formation of a number of genetic types of lithologic reservoir in the Qianjiang saline lake.The lithologic reservoirs may be divided into...
GENETIC MECHANISM OF NEARLY N-S-TRENDING STRUCTURE IN THE QAIDAM BASIN AND THEIR SIGNIFICANCE FOR FORMATION OF HYDROCARBON ACCUMULATIONS
CAO Chen-jie, WANG Xiao-feng
2005, 11(1): 74-80.
Abstract (228) PDF (308KB)(10)
Abstract:
Nearly N-S-trending structures are found in all basins of west-central China. They are not large in scale but have a marked controlling effect on the formation of hydrocarbon accumulations. On the basis of the research results of relevant subjects, combined with a wealth of drilling, geophysical, ex...
RESERVOIR CHARACTERISTICS AND EVALUATION OF THE KANGCUN FORMATION IN THE DAWANQI OILFIELD,TARIM BASIN
KUANG Hong-wei, JIN Guang-chun
2005, 11(1): 81-89.
Abstract (204) PDF (299KB)(8)
Abstract:
On the basis of stratigraphic correlation, the characteristics of reservoir rocks of the Kangcun Formation, origin, types and features of sand bodies, pore types and textures of reservoir rocks and distribution characteristics of the reservoir in the Dawanqi oilfield have been intensively studies. T...
DISTRIBUTION CHARACTERISTS OF Ro AND FACTORS INFLUENCING THE ORGANIC MATURITY IN THE ZHANHUA DEPRESSION
LI Sheng-li, YU Xing-he, CHEN Jian-yang, LI Yun-xiu, WANG Yong-shi
2005, 11(1): 90-96.
Abstract (179) PDF (212KB)(8)
Abstract:
According to an analysis of the data of temperatures and Ro in the Zhanhua depression of the Shengli oilfield, the Ro=0.4% is determined to be the Ro threshold of hydrocarbon (including immature or low-maturity oil/gas) generation in the area, and the depth threshold and temperature threshold corres...

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