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Division of Gas Accumulation System and Laws Controlling Distribution of Natural Gas in Typical Petroliferous basins of China

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Journal of China university of Geosciences 2002年第4期13卷 306-312页

作者： Jiang Zhenxue Pang Xiongqi Jin Zhijun Chen Dongxia basin & reservoir research {3., {4. of petroleum, Beijing 10224. Key Laboratory of Hydrocarbon Accumulation, Ministry of Education, Beijing 10224. basin & reservoir research {3. University of Petroleum Beijing 102249 Key Laboratory of Hydrocarbon Accumulation Ministry of Education Beijing 102249

Considering the existing problems of the petroleum system, this paper bringsforward the concept of natural gas accumulation system and presents the dividing principles. Thendetailed statistics on the accumulation factors of the 3. typical natural gas accumulation systemsin China and studies on the laws controlling distribution of gas are collected. The research showsthat the petroleum accumulation system is the basic unit controlling petroleum generation, migrationand accumulation. Generating intensity, generating amount, accumulating efficiency and migrationdistance plays an important role in the distribution of natural gas. Through analysis on results ofresources evaluation, discovered reserves and residual reserves, potential areas in middle-scaledpetroliferous basins in China are forecasted in this paper. Ordos, Sichuan, Tarim and Qaidam basinsare found out to be the main basins developing and enriching gas accumulation systems.

关键词： petroliferous basins in china gas accumulation system petroleum system laws controlling gas potential area

Stratigraphic thermohistory and its implications for regional geoevolution in the Tarim basin,NW China

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Science China Earth Sciences 2010年第10期53卷 1495-1505页

作者： WANG TieGuan1,DAI ShiFeng2,LI MeiJun1,ZHANG WeiBiao1,3.Qiu NanSheng1 & WANG GuangLi1 1 State Key Laboratory of petroleum Resources and Prospecting,China university of petroleum,Beijing {3.,China 2 State Key Laboratory of Coal Resources & Safe Mining,China university of Mining & Technology,Beijing 100083.China 3.Exploration research center,Exploration & Development Institute,China Petrochemical Corporation,Beijing 100083.China 1. State Key Laboratory of petroleum Resources and Prospecting China University of Petroleum Beijing 102249 China2. State Key Laboratory of Coal Resources & Safe Mining China University of Mining & Technology Beijing 100083 China3. Exploration Research Center Exploration & Development Institute China Petrochemical Corporation Beijing 100083 China

Fourteen vitrinite reflectance profiles from the Tarim basin,NW China,show that the vitrinite reflectance profiles of individual wells follow a faulted and dislocated dual-stage pattern in the eastern section of the Tazhong Uplift and in the Tabei *** reflectance values in these profiles change sharply at the unconformity beneath the Lower Carboniferous Bachu or Upper Devonian Donghetang Formations,where the overlying Triassic to Carboniferous strata are still in a mature phase within the "liquid oil window".However,the underlying Lower Paleozoic reached the overmature phase beyond the "liquid oil window" towards the end of the Silurian,or in the Early Devonian at the *** the vitrinite reflectance profiles are attributed to a continuous,single-stage pattern in the western section of the Tazhong Uplift,in which the Lower Paleozoic is also in an overmature phase,their overmaturity would have been achieved relatively late in geological *** stratigraphic thermohistory has the following implications to regional geoevolution:(1) The overmature Lower Ordovician to Cambrian strata in the eastern section of the Tazhong Uplift and in the Tabei Uplift,as well as in the Manjiaer Depression,could not have acted as the source kitchen for normal oil(so-called black oil);(2) The dissimilarity in vitrinite reflectance profiles between the eastern and western sections of the Tazhong Uplift reveals Early Paleozoic paleotectonic features,i.e.,lower at the east and higher at the west,whereas recent tectonic features formed since the Late Paleozoic are in reverse,i.e.,higher in the east and lower at the west;(3. Reconstruction of the denuded thickness of sediments overlying the Lower Ordovician strata suggests reconsideration on the paleotectonic features in the Tarim basin;(4. Based on the sustained duration of the "liquid oil window" for overmature source beds,it is predicted that the Suntuoguole Lower Uplift between the Awati and Manjiaer Depressions is a

关键词： vitrinite reflectance profile faulted and dislocated dual-stage pattern paleotectonic features sustained "liquid oil window" period source kitchen

MODELING OF 3.D ELECTROMAGNETIC RESPONSES IN FREQUENCY DOMAIN BY USING THE STAGGEREDGRID FINITE DIFFERENCE METHOD

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MODELING OF 3-D ELECTROMAGNETIC RESPONSES IN FREQUENCY DOMAI...

Mn content of reservoir calcite cement: A novel inorganic geotracer of secondary petroleum migration in the tectonically complex Junggar basin (NW China)

作者： Shen Jinsong (basin & reservoir research {3.,{4. university,Beijing 10224.,China)

＜正＞1 INTRODUCTION With the development of the measuring equipment and the field data acquisition techniques, the electromagnetic prospecting has been widely applied to the study of environment,resources, communicat...

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Science China Earth Sciences 2007年第12期50卷 1796-1809页

作者： CAO Jian1,HU WenXuan1,YAO SuPing1,ZHANG YiJie2,WANG XuLong3.ZHANG YueQian3.TANG Yong3.& SHI XinPu3.1 State Key Laboratory for Mineral Deposit {4.,Department of Earth Sciences,Nanjing university,Nanjing 210093.China 2 {4. Institute of Exploration and Development,PetroChina,Beijing 100083.China 3.{4. Institute of Exploration and Development,PetroChina Xinjiang Oilfield Company,Karamay 83.000,China 1. State Key Laboratory for Mineral Deposit research Department of Earth Sciences Nanjing University Nanjing 210093 China 2. research Institute of Exploration and Development PetroChina Beijing 100083 China 3. research Institute of Exploration and Development PetroChina Xinjiang Oilfield Company Karamay 834000 China

Electronic probe microanalysis(EPMA) results of reservoir calcite cement from fourteen core samples in the Junggar basin show that Mn-content varies largely between different samples from below the detect limitation to 4.14.,while it displays a generally good correlation with oil-gas ***,therefore,likely indicates that concentration of the Mn-content of the calcite cement has a close rela-tion to the intensity of petroleum fluid charging during hydrocarbon secondary *** order to assess this hypothesis,oxygen and strontium isotopic measurements on sixteen calcite veins host in source sequences were carried out to investigate the feature of the oil-source petroleum *** results imply that during hydrocarbon generation and migration,deep hot fluid has dissolved volcanic minerals interlined between mudstone source *** Mn is a kind of typical trace element enriched in volcanic rocks,it is reasonable to conclude that the petroleum fluid formed in the source sequences would be ***,calcite cements precipitated from such Mn-rich petroleum fluid would be Mn-rich *** to the geologic chromatographic effect during migration along reservoir rocks,the decreasing of the Mn-content of the reservoir calcite cements indicates the migration ***,this novel geotracer was further successfully applied in the study of hydrocarbon migration in the Junggar basin in combination with organic geochemical analyses during the hydrocarbon *** Mn content of the reservoir calcite cement appears promising as a novel inorganic geotracer for the petroleum *** paper represents a search for novel indicators of secondary petroleum migration in tectonically complex basins based on fundamentals of the reservoir fluid-rock interactions.

关键词： petroleum migration, inorganic geochemistry, water-rock interaction, reservoir calcite cement, the Junggar basin

Origin and accumulation of the oils from Bamianhe Oilfield, Bohai Bay basin, Eastern China

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Science China Earth Sciences 2004年第Z2期47卷 177-189页

作者： PANG Xiongqi1,2, LI Sumei1,2, JIN Zhijun3. LI Maowen4. LI Pilong5 , LI Xue5 & BAI Guoping1,2 1. Key Laboratory of Hydrocarbon Accumulation, Ministry of Education, Beijing 10224., China 2. basin & reservoir {3. center, university of petroleum, Beijing 10224., China 3. Sinopec petroleum Exploration and Exploitation Institute, Beijing 100083. China 4. Geological Survey of Canada, Calgary T2L 2A7, Canada 5. Shengli petroleum Exploration Bureau, Dongying 257015, China Key Laboratory of Hydrocarbon Accumulation Ministry of Education Beijing 102249 China basin & reservoir research {3. University of Petroleum Beijing 102249 China Sinopec petroleum Exploration and Exploitation Institute Beijing 100083 China Geological Survey of Canada Calgary T2L 2A7 Canada Shengli petroleum Exploration Bureau Dongying 257015 China

Utilizing basic principles and methodologies of geology and organic geochemistry, kinetics of hydrocarbons generation and accumulation, quantitative assessment of crude oils sourced from different source rocks, and hydrocarbons migration pathways for the oils from the Bamianhe Oilfield, the Bohai Bay basin, Eastern China are discussed. Results of oil-rock corre-lation showed that the oils were mainly derived from Es4.member (with buried depth >2700 m) of Niuzhuang and Guangli Sags within normal oil window though there is a little amount of mixed immature oils. Quantification of mixed oils with different sources indicated that mature oils ac-count for about 80% of the total oils discovered and immature oils for only 20%. Migration of the oils sourced from the sags is controlled by predominant hydrocarbons migration passages de-termined by faults, unformalities and favored sandstone reservoir. Results of the origin and mi-gration models for the oils have been recently further testified by considerable quantity of oils discovered in the Bamianhe area, which is obviously playing an important role in guiding further oil exploration.

关键词： Bamianhe Oilfield, mixed oil, oil-rock correlation, oil migration, oil-pool forming dynamics.

Boiling process of low temperature formation water in petroleum system, Qaidam basin

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Chinese Science Bulletin 1999年第S2期44卷 77-78页

作者： HU Wenxuan~1, JIN Zhijun~2, QIU Nansheng~2, FU Qi~1, LU Xiancai~1 and SUN Rui~1 1. State Key Laboratory of Mineral Deposit research, Nanjing university, Nanjing 210093. China 2. basin and {3. Reseach center, university of petroleum, Beijing 102200, China State Key Laboratory of Mineral Deposit research Nanjing 210093 China basin and reservoir research {3. University of Petroleum Beijing 102200 China

FOLLOWING the study of Roedder et al., boiling fluid inclusions are identified in oil reservoir ofQaidam basin. This paper reports the general characteristics of the boiling fluid inclusions, analyzes theconditions for the formation water to boil at low temperature, and discusses the relation between the boiling process and the oil/gas accumulation. 1 General features Boiling fluid inclusions are minute records of the immiscibility process of subterranean hydrothermalfluids, which are generally composed of different types trapped simultaneously. They are observed mostlyin magmatic hydrothermal mineral deposits. In sedimentary basins, the boiling process was only found inMVT. The discovery of boiling fluid inclusions in Qaidam basin is of great significance to

关键词： boiling fluid inclusions oil/gas accumulation Qaidam basin.

Formation mechanism and model for sand lens reservoirs in the Jiyang Sub-basin,East China

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Science China Earth Sciences 2004年第Z2期47卷 167-176页

作者： LI Pilong 1, PANG Xiongqi2,3. CHEN Dongxia2,3. ZHANG Shanwen1, JIN Zhijun4.& JIANG Zhenxue2,3.1. Shengli Oil Field Ltd, SINOPEC, Dongying 257051, China 2. university of {4., Beijing 10224., China 3. Key Laboratory of Oil and Gas Accumulation, Ministry of Education, Beijing 10224., China 4. research Institute of {4. Exploration and Exploitation, SINOPEC, Beijing 100083. China Shengli Oil Field Ltd SINOPEC Dongying 257051 China university of petroleum Beijing 102249 China Key Laboratory of Oil and Gas Accumulation Ministry of Education Beijing 102249 China research Institute of petroleum Exploration and Exploitation SINOPEC Beijing 100083 China

The Bohai Bay basin comprises some very important and well documented subtle traps known in China, which have been the major exploration focus and have become a major petroleum play since the 1990s. However, recent exploration showed that the oil-bearing proper-ties of some sand lens reservoirs may vary significantly and the accumulation mechanisms for these lithological subtle traps are not well understood. Based on statistical analysis of oil-bearing properties for 123.sand lens reservoirs in the Jiyang Sub-basin and combined with detailed anatomy of typical sand lens reservoirs and NMR experiments, it has been shown that the structural and sedimentary factors, hydrocarbon generation and expulsion conditions of the sur-rounding source rocks, as well as the petrophysical properties of sand lens reservoirs are the main controlling factors for the formation of sand lens reservoirs. The formation of a sand lens reservoir depends on the interaction between the hydrocarbon accumulation driving force and the resistance force. The driving force is made up of the differential capillary pressure between sandstones and sources rocks and the hydrocarbon diffusion force, and as well as the hydro-carbon expansion force. The resistance force is the friction resistance force for hydrocarbons and water to move through the pore throats of the sand lens. The sedimentary environment, source rock condition and sand reservoir properties can change from unfavorable to favorable depend-ing on the combination of these factors. When these three factors all reach certain thresholds, the sand lens reservoirs may begin to be filled by hydrocarbons. When all of these conditions be-come favorable for the formation of sand lens reservoirs, the reservoir would have high oil satu-ration. This approach has been applied to evaluating the potential of petroleum accumulation in the sand lens reservoirs in the third member of the Neogene Shahejie Formation in the Jiyang Sub-basin.

关键词： sand lens reservoir, accumulation controlling factors, accumulation mechanism, accumulation model, Jiyang Sub-basin.

The components and carbon isotope of the gases in inclusions in reservoir layers of Upper Paleozoic gas pools in the Ordos basin,China

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Science China Earth Sciences 2008年第S1期51卷 115-121页

作者： MI JingKui 1 ,DAI JinXing 1 ,ZHANG ShuiChang 1 ,ZHANG WenZheng 2 ,GONG Se 1 &LI XianQing 3.1 research Institute of petroleum Exploration and Development,PetroChina,Beijing 100083.China 2 Exploration and Development research Institute of PetroChina Changqing Oilfield Company,Xi’an 710021,China 3.Key Laboratory of Coal Resources,Ministry of Education,China {3. of Miningand Technology,Beijing 100083.China PetroChina Res Inst Petr Explorat & Dev Beijing 100083 Peoples R China PetroChina Changqing Oilfield Co Explorat & Dev Res Inst Xian 710021 Peoples R China China Univ Min & Technol Key Lab Coal Resources Minist Educ Beijing 100083 Peoples R China

The components and carbon isotope of gases in inclusions are one of the most important geochemical indexes for gas *** analysis results of the components and carbon isotope of gases from inclusions in reservoir layers of Upper Palaeozoic gas pools in the Ordos basin show that most inclusions grown in reservoir sandstone are primary *** is only a little difference about the components and carbon isotope between the well gases and the secondary inclusions *** indicated that the epigenetic change of gas pools is *** difference between the well gases and the secondary inclusions gases is caused by two reasons:(i)The well gases come from several disconnected sand bodies buried in a segment of depth,while the inclusion gases come from a point of depth.(ii)The secondary inclusions trapped the gases generated in the former stage of source rock gas generation,and the well gases are the mixed gases generated in all the *** is irresponsible to reconstruct the palaeo-temperature and palaeo-pressure under which the gas pool formed using carbon dioxide inclusions.

关键词： Ordos basin Upper Paleozoic inclusion gas components carbon isotope

HEAT FLOW DISTRIBUTION IN THE QAIDAM basin, NORTHWEST CHINA

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Scientia Geologica Sinica 2001年第3期 181-189页

作者： QIU NANSHENG Key Lab for petroleum Entrapment Mechanism in Ministry of Education, university of petroleum, Beijing {3.. {4. & reservoir research center, university of petroleum, Beijing {3..

This paper gives a heat flow distribution map of the Qaidam basin, which was compiled on the basis of our own 4. heat flow values. Of these 4. heat flow values 19 are measured heat flow value and 28 are calculated or estimated heat flow values. In this basin the heat flow values range from 3..3.W/m2 to 70.4.W/m2, with the average value of 52.6 (9.6 mW/m2. The heat flow of higher than 60mW/m2 is in the western and {4. of the basin; the lowest heat flow of 3..3.mW/m2 is on northeastern of the basin.

关键词： heat Wang Jun HEAT FLOW DISTRIBUTION IN THE QAIDAM basin NORTHWEST CHINA