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Geochemical characteristics and applications of 18α(H)-neohopanes and 17α(H)-diahopanes

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Chinese Science Bulletin 2000年第19期45卷 1742-1748页

作者： WANG Chunjiang, FU Jiamo, SHENG Guoying, XIAO Qianhua, LI Jinyou, ZHANG Yali & PIAO Mingzhi1. Slate Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences. Guang/hou 510640, China 2. Department of Geosciences, petroleum University, Beijing 102200, China 3. Institute of petroleum exploration and Exploitation, liaohe bureau of petroleum exploration, Panjin 240000, China State Key Laboratory of Organic Geochemistry Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou China Department of Geosciences Petroleum University Beijing China Institute of petroleum exploration and Exploitation Liaohe Bureau of Petroleum Exploration Panjin China

Distributions and geochemical significances of 18α(H)-neohopanes and of 17α(H)-diahopanes in oils from west Xialiaohe depression of the Bohai Bay Basin have been studied. Relative abundance of 18α(H)-neohopanes and of 17α(H)-diahopanes can be effectively used as maturity parameters, in a range of medium-high mature stage, based on consideration on sedimentary-organic facies of source rocks. With a dual geochemical significance of maturity and sedimentary-organic facies, neohopane and diahopane parameters can be well used in oil-source correlation and in petroleum population division. Formation, primary concentration and preservation of precursors of rearranged hopanes are closely related to depositional conditions such as Eh-pH and clays content. A series of probable diahopanes (series D) was detected in the oils, which exhibits a similar distribution pattern and geochemical behavior as that of 17α(H)-diahopanes (series B).

关键词： 18α(H)-neohopane 17α(H)-diahopane maturity sedimentary-organic facies.

Novel ladder patch monopole antenna for UWB application

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The Journal of China Universities of Posts and Telecommunications 2015年第6期22卷 61-65页

作者： Han Yu'nan Ma Tao Zhang Hongxin Zhang Kexin Dai Lin Zhao Pengfei College of Information Technology Beijing University of Chemical Technology School of Electrical Engineering Beijing University of Posts and Telecommunications liaohe petroleum exploration bureau Communication Company

A novel printed microstrip-fed ladder patch monopole antenna is presented for ultrawide band （UWB） application. The antenna consists of rectangular patch elements ladder arrayed at the both sides of the microstrip-fed line on a printed circuit board （PCB） and a rectangular ground plane. The antenna parameters of ladder number N, the rectangular patches geometry of ladder elements, the ladder step length and the length of ground plane are studied to obtain optimized antenna performances. The successfully designed, implemented and measured antenna has a compact size of 12 mm× 12 mm and operation frequency band from 3.1 GHz to 10.6 GHz with voltage standing wave ratio （VSWR） less than 2. Using the ladder patch array in microstrip monopole antenna design makes antennas flexible in terms of controlling resonances, bandwidth, stable radiation patterns, and constant group delay.

关键词： monopole antenna ladder patch UWB miniature ladder patch

Discovery and geologic significance of organic-biogenic secondary freshwater calcite in the Upper Triassic of Shaan-Gan-Ning Basin

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Chinese Science Bulletin 1997年第15期42卷 1297-1300页

作者： Zhang, WZ Huang, YM Song, GC Zan, CL Research Institute of petroleum exploration and Development Changqing Bureau of Petroleum Exploration Changqing China

1 Discovery of secondary freshwater calciteFROM well ZJ-23, around 22 m of condensed limestone has been found in member Chang-3 ofthe Upper Triassic Yanchang Formation. Electric log reflects high resistivity, higher densityof rock and lower values of natural gama, with calcite content of 40%—80%. Observation da-ta of 11 core wafers from 883. 05—887.20 m of the well demonstrate that high-angle struc-tural fracture (2 mm wide) and micro-fracture are relatively developed and fully or half

关键词： secondary calcite isotope genesis oil and gas migration.

Lacustrine biomass: An significant precursor of high wax oil

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Chinese Science Bulletin 2003年第18期48卷 1987-1994页

作者： Haiping Huang Yabin Zheng Zhanwen Zhang Jinyou Li China University of Geosciences Scientific Institute of petroleum exploration and Development Liaohe Oilfield Company China National Petroleum Corporation

Although a variety of precursors have been proposed for the formation of high molecular weight hydro-carbons (HMWHCs) in crude oil, their precise origin re-mains elusive. Quantitative studies of macrocrystalline wax and microcrystalline wax content of source rock extracts from the Damintun depression, liaohe Basin, a typical high wax producing area, coupled with microscopical maceral composition studies and pyrolysis-GC analysis indicate that oil shale enriched in lacustrine biomass makes a primary contribution to wax in oil. The main precursors of high wax oil are lacustrine alginites and their amorphous matrix, which are highly aliphatic in nature and have high genera-tive potential for HMWHCs. Wax generation efficiency could be affected by organic material abundance and matur-ity. The high abundance and low maturity of organic mate-rial are favorite for the formation of high quantity of wax, which declines with decreasing organic abundance and in-creasing thermal maturity. This suggests that wax is derived from organic-rich lacustrine biomass at early stages of maturation (RO = 0.4%—0.7%). Although the contribution of high plant cuticular wax and sporopollen cannot be ruled out, lacustrine biomass is more important in the formation of high wax oil.

关键词： high wax oil precursor microalgae maturity HTGC Damintun depression.

HEAVY OIL DEVELOPMENT KEY TO CHINA'S OIL PRODUCTION GROWTH

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China Oil & Gas 2006年第4期13卷 18-19页

作者： Ma Chunpeng liaohe petroleum exploration bureau

How to raise the heavy oil production rate has long been a difficult research project focused by international oil giants while the super-heavy oil development is particularly a world-class bottleneck for many oil producers. However, China's main oil companies will give priority to heavy oil exploration and production in the next decade to meet China's increasing energy needs.

关键词：中国重油生产率石油资源油气资源石油产品

Fuel Tax in Sight to Raise Energy Efficiency

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China Oil & Gas 2007年第2期14卷 22-24页

作者： Zhang Angang liaohe petroleum exploration bureau

Policymakers have talked about introducing a fuel tax for more than a decade. Now, the country＇s urgent need to raise energy efficiency makes it the right time to bring the tax into reality. China recently announced its action plan on climate change and the Chinese Government circular urging local governments and companies around the country to implement the General Work Plan for Energy Conservation and Pollutant Discharge Reduction.

关键词：燃油税能源效率石油工业行业标准

Geochemical characteristics and source rock of Ordovician gas reservoir, Changqing Gasfield

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Chinese Science Bulletin 1999年第20期44卷 1917-1920页

作者： XIA Xinyu, ZHAO Lin, ZHANG Wenzheng and LI JianfengResearch Institute of petroleum exploration and Development, Beijing 100083, China Changqing petroleum exploration bureau, XL an 710021 , China Research Institute of petroleum exploration and Development Beijing China Changqing petroleum exploration bureau Xi’an China

Carbon isotopic composition of methane in Ordovician gas reservoir in the Changqing Gasfield can reflect the dominance of Upper Paleozoic coal-type gas despite its high mature degree. The 12C-rich ethane in the Ordovician reservoir (δ13C2 < - 29‰), known as a marker as oil-type gas, does not indicate the Ordovician marine carbonate as main source rock, it is be-

关键词： methane ethane carbon isotope natural gas genesis. Changqing Gasfield.

Characteristics and applications of isotopes in products from organic matter in sedimentary rocksby simulated thermal experiments

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Science China Chemistry 1995年第3期38卷 371-376页

作者：陈安定张文正徐永昌 Institute of petroleum exploration and Development Changqing Petroleum Exploration Bureau Qingyang 745101 China Lanzhou Institute of Geology Chinese Academy of Sciences Lanzhou 730000 China

Isotopic compositions of carbon in the products obtained respectively from 25 sedimentary rocks at an early stage of maturation by the simulated thermogenetic hydrocarbons experiments have been determined. The fractional effect of methane carbon isotope during the thermal maturation of organic matter is observed. Based on the experimental data, the relative equations between δ13C and R0 were established and have been used for differentiation of origins of various kinds of natural gases in the Shan-Gan-Ning Basin.

关键词： natural gases origin of natural gases carbon isotopes in natural gases.

Uranium mineralization formed through multi-stage superposition: Case of the Qianjiadian deposit in Songliao Basin, China

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Energy Geoscience 2021年第1期2卷 32-40页

作者： Zhenyan Chen Qingchun Li Mingyi Liu Bairong Song Minqiang Cao Miao Wang liaohe petroleum exploration bureau PanjinLiaoning124010China Department of Geology Northwest UniversityXi’an710069China Xi'an Center of Geological Survey CGSXi'an710054China

The Qianjiadian uranium deposit is located in the Kailu Depression of Songliao *** is a large-scale in-situ leachable uranium deposit of sandstone type and provides a typical case of the uranium deposits in the Songliao *** we analyze the impact of oil and gas on reduction alteration,and factors including low grade *** Qianjiadian uranium deposit is characterized as a typical rolltype deposit with interlayers in oxidized *** occurrence of reductive low-permeability sandstone in uranium reservoirs controls the morphology of the uranium-rich *** propose a metallogenic model involving multi-stage superposition characterized by“primary sediment enrichment-interlayer oxidation-superimposed transformation”.Our model would be helpful for formulating guidelines in the exploration for sandstone-type uranium deposits in the Songliao Basin.

关键词： Qianjiadian uranium deposit Sandstone-type uranium deposit Interlayer oxidation Hydrothermal transformation Metallogenic model