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Quantitative studies of hydrocarbon loss of the Silurian bitumen sandstone in the Tarim Basin

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Science china Earth Sciences 2008年第S2期51卷 101-107页

作者： JIANG ZhenXue1,2,PANG XiongQi1,2,LIU LuoFu1,2,WANG XianDong3,ZHANG Jun4 & LI HongYi1,2 1 Basin and Reservoir research Center,china University of petroleum,beijing 102249,china 2 State Key Laboratory of petroleum Resource and Prospecting,china University of petroleum,beijing 102249,china 3 research institute of exploration and development,Daqing Oilfield Company Ltd,Daqing 163712,china 4 petroleum exploration and Production institute of SINOPEC,beijing 100083,china Basin and Reservoir research Center China University of Petroleum Beijing China State Key Laboratory of petroleum Resource and Prospecting China University of Petroleum Beijing China research institute of exploration and development Daqing Oilfield Company Ltd Daqing China petroleum exploration and Production institute of SINOPEC Beijing China

The evolution of Tarim Basin experienced several tectonic movements,of which Caledonian movement caused a serious damage to reservoirs of Silurian. The earlier reservoirs size and the later hydrocarbon loss are two key factors to exploration prospect of Silurian. On the basis of net thickness of bituminous sandstone and recovery coefficient of crude oil converting to bitumen,the scale of the hydrocarbon loss of palaeo-accumulation in bitumen sandstone of Silurian was calculated (86.30×108t). The deter-mination of net thickness of bitumen sandstone was completed mainly by several methods,such as physical property demarcation,observing lithology,grains with oil inclusion (GOI) technology,and quantitative grains fluorescence (QGF) technology. The samples of black sandstone and white sand-stone were collected and compared by means of the methods mentioned above. The results showed that there was little hydrocarbon,or none,in the white sandstone. The recovery coefficient was ob-tained by the analyses of plentiful physical parameters of crude oil and bitumen sandstone,based on the hypothesis that nonhydrocarbon compounds and bitumen were invariable in the process of bitu-men forming. The calculated result,which is more scientific and actual,indicates the exploration pros-pect is more promising in Silurian of the Tarim Basin.

关键词： Tarim Basin Silurian bitumen sandstone hydrocarbon loss quantitative research recovery coefficient

Primary migration and secondary alteration of the Upper Paleozoic gas reservoir in Ordos Basin,china―Application of fluid inclusion gases

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Science china Earth Sciences 2008年第S1期51卷 165-173页

作者： GONG Se 1,2 ,PENG PingAn 1 ,SHUAI YanHua 3 ,DAI JinXing 3 &ZHANG WenZheng 4 1 Guangzhou institute of Geochemistry,the Chinese Academy of Sciences,Guangzhou 510640,china 2 Common Wealth Scientific and research Organization,petroleum Resources,PO Box 136,North Ryde,New South Wales,1670,Australia 3 research institute of petroleum exploration and development,petrochina,beijing 100083,china 4 research institute of exploration and development,Changqing petroleum Corporation,Xi’an 710021,china Guangzhou institute of Geochemistry the Chinese Academy of Sciences Guangzhou China Common Wealth Scientific and research Organization Petroleum Resources North Ryde Australia research institute of petroleum exploration and development PetroChina Beijing China research institute of exploration and development Changqing Petroleum Corporation Xi’an China

The composition of fluid inclusions(FI)often represents the initial geochemical characteristics of palaeo-fluid in reservoir *** on composition and carbon isotopic composition of gas during primary migration,reservoir-forming and subsequent secondary alterations are discussed through comparing fluid inclusion gas with coal-formed gas and natural gas in present gas reservoirs in the Ordos *** results show that primary migration of gas has significant effect on the molecular but not on the carbon isotopic composition of *** and diffusion fractionation took place during the secondary migration of gas in Upper Paleozoic gas reservoir according to carbon isotopic composition of methane in *** and carbon isotopic composition of natural gas were nearly unchanged after the gas reservoir forming through comparing the FI gases with the natural gas in present gas reservoir.

关键词： secondary alteration fluid inclusion carbon isotope Ordos Basin

The special sealing mechanism of caprock for Quaternary biogenetic gas in Sanhu area,Qaidam Basin,china

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Science china Earth Sciences 2008年第S1期51卷 45-52页

作者： LI Jian 1 ,YAN QiTuan 1 ,ZHANG Ying 1 ,LIU GuangDi 2 &WANG XiaoBo 1 1 research institute of petroleum exploration and development-Langfang,Langfang 065007,china 2 University of petroleum,beijing 102249,china research institute of petroleum exploration and development-Langfang Langfang China University of petroleum Beijing China

The Quaternary biogenetic gas reservoirs in the east of Qaidam Basin have many characteristics such as late forming time,shallow burial depth,low diagenetic grade,high porosity and high permeability and so *** cannot be considered as caprock according to the traditional evaluation ***, the large scale and high efficient biogenetic gas reservoirs of the Qaidam Basin are really formed under these kinds of caprocks,so it does have some specialty in its sealing *** at the special sealing mechanism,some simulating experiments have been *** research results show that the sealing ability of biogenetic gas caprock is related with water saturation,the caprock that is saturated with salt water can effectively block seepage and ***,the multiple reservoir-caprock groups have accumulated sealing effect,causing the formation of big gas *** evaluation method with traditional caprock parameters cannot be adopted in evaluating the study area.

关键词： Qaidam Basin biogenetic gas caprock sealing mechanism diffusion water saturation accumulated sealing

Detection of water in petroleum inclusions and its implications

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Science Bulletin 2006年第12期51卷 1501-1507页

作者： CAO Jian1, YAO Suping1, HU Wenxuan1, ZHANG Yijie2, WANG Xulong3, ZHANG Yueqian3 & TANG Yong3 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, Bei- jing 100083, china 3. research institute of exploration and development, Xinjiang Oilfield Company, petrochina, Karamay 834000, china State Key Laboratory for Mineral Deposit research Department of Earth Sciences Nanjing University Nanjing China research institute of exploration and development PetroChina Beijing China research institute of exploration and development Xinjiang Oilfield Company PetroChina Karamay China

FTIR spectra of inclusions sampled from fault-zone reservoirs of the northwestern Junggar Basin show that water, with different abundances, does exist in petroleum inclusions. It is thus implied that petroleum inclusions can seldom form without water. Different inclusions hosted in one single grain, and formed in one oil charging phase, have a largely varied ratio of water to oil and slightly changed CH3/CH2 ratio. This likely provides evidence for fault-related episodic migration and accumulation of hydrocarbons.

关键词： water in petroleum inclusions forming mechanism of inclusions episodic migration and accumulation of hydrocarbons FTIR microspectroscopy Junggar Basin.

ESTABLISHMENT OF THE GEOLOGICAL MODEL OF FRACTURED RESERVOIRS

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石油勘探与开发 1995年第6期22卷 90-97页

作者： Mu Long-xin (research institute of petroleum exploration and development, CNPC)

ＥＳＴＡＢＬＩＳＨＭＥＮＴＯＦＴＨＥＧＥＯＬＯＧＩＣＡＬＭＯＤＥＬＯＦＦＲＡＣＴＵＲＥＤＲＥＳＥＲＶＯＩＲＳ￥ＭｕＬｏｎｇ－ｘｉｎ（ＲｅｓｅａｒｃｈＩｎｓｔｉｔｕｔｅｏｆＰｅｔｒｏｌｅｕｍＥｘｐｌｏｒａｔｉｏｎａｎｄ... 详细信息

ＥＳＴＡＢＬＩＳＨＭＥＮＴＯＦＴＨＥＧＥＯＬＯＧＩＣＡＬＭＯＤＥＬＯＦＦＲＡＣＴＵＲＥＤＲＥＳＥＲＶＯＩＲＳ￥ＭｕＬｏｎｇ－ｘｉｎ（ＲｅｓｅａｒｃｈＩｎｓｔｉｔｕｔｅｏｆＰｅｔｒｏｌｅｕｍＥｘｐｌｏｒａｔｉｏｎａｎｄＤｅｖｅｌｏｐｍｅｎｔ，ＣＮＰＣ）...

关键词： Fracture Geological model Low permeability sandstone oil field

Application of backflush and micro-flow techniques to the analysis of C5—C13 hydrocarbons in crude oils and its geochemical significance

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Progress in Natural Science:Materials International 2007年第11期17卷 1382-1387页

作者： Wang Peirong1,2, Zhao Hong2,3, Xu Guanjun1,4, Zhu Cuishan2,3, Xiao Tingrong4, Zhang Min2,3 and Zhang Bin1,4(1. Key Laboratory of petroleum Geochemistry, china National petroleum Corporation, beijing 100083, china 2. Geochemistry Department of Yangtze University, Jingzhou 434023, china 3. Key Laboratory of exploration Technologies for Oil and Gas Resources, Ministry of Education, Yangtze University, Jingzhou 434023, china 4. petroleum Geology Central Laboratory, research institute of petroleum exploration and development, petrochina, beijing 100083, china) Key Laboratory of petroleum Geochemistry China National Petroleum Corporation Beijing 100083 China Geochemistry Department Yangtze University Jingzhou 434023 China Key Laboratory of exploration Technologies for Oil and Gas Resources Yangtze University Jingzhou 434023 China petroleum Geology Central Laboratory Research Institute of Petroleum Exploration and Development PetroChina Beijing 100083 China

An Agilent 6890N GC equipped with both FID and Agilent 5975 MSD analyzer has been employed to analyze C5—C13 hydrocarbon fractions of crude oils. A technical combination of program temperature volatilizer injection, backflush and micro-flow controller afforded a fine separation of C5—C13 compounds on a PONA column with the heavy part of crude oils being cut off before entering the analytical column. Both GC-FID chromatogram and GC-MS mass chromatograms (MID and full scan) could be obtained at the same time. The retension time differences of nC6—nC13 alkanes between GC and TIC were in the range of 0.02—0.58 minutes. Totally 286 peaks have been assigned group compositions. Results on 8 typical oil samples from CNPC Key Laboratory Crude Oil Library showed that the characteristics of C6—C13 hydrocarbon group composition could be used in oil-oil correlation studies.

关键词： GC analysis GC/MS analysis backflush micro-flow controller light fraction in crude oil

Mechanism of catalytic hydropyrolysis of sedimentary organic matter with MoS_2

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petroleum Science 2011年第2期8卷 134-142页

作者： He Kun Zhang Shuichang Mi Jingkui Chen Jianping Cheng Lei petroleum Geology research and Central Laboratory Research Institute of Petroleum Exploration and Development （RIPED） PetroChina Beijing 100083 China CNPC Key Laboratories for petroleum Geochemistry Beijing 100083 China

MoS2 was used as an efficient catalyst for hydropyrolysis （Hypy） of three samples of sedimentary organic matter with different maturities. Through comparison with Soxhlet extraction （SE）, it was found that MoS2 catalytic Hypy can remarkably promote the yields of total chloroform extracts, saturates, aromatics, hopanes and steranes. In addition, the difference of biomarker parameters indicated that isomerization of covalently-bound biomarkers is much more difficult than their free counterparts. Meanwhile, the high conversion of total organic carbon （TOC） in MoS2 catalytic Hypy of organic matter proved that the presence of dispersed molybdenum sulfide accelerated the breaking of C-C bonds and the release of hydrocarbons. To address the catalytic mechanism, a series of control experiments based on free Hypy and catalytic Hypy were conducted. The results showed that the calculated atomic ratio of carbon conversion/hydrogen conversion for catalytic Hypy was much larger than the presumed value of 1/2, indicating that intensive hydrogenation took place and significantly influenced the distribution of liquid products. Analysis of stable hydrogen isotope data, infrared spectra and m/z 83 ion chromatograph of the saturate fraction further confirmed this hypothesis. The difference of S content changing （AS） between catalyst-free Hypy and catalytic Hypy, and the thermal characteristics of the catalyst, indicated that active H2S was definitely generated and it probably initiated free radical reactions in the early stage of hydropyrolysis of organic matter.

关键词： Catalytic hydropyrolysis molybdenum disulfide kerogen coal Soxhlet extraction,biomarkers

EARLY PALAEOZOIC PRIMARY OIL OF KONGXI BURIED HILL IN HUANGHUA DEPRESSION, HUABEI, china

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石油勘探与开发 1997年第3期24卷 92-95页

作者： Wang Zhaoyun Cheng Keming(research institute of petroleum exploration and development, CNPC, beijing, 100083)Yang Chiyin(Geology and development institute, Dagang Oil Field Group Ltd., Tianjin, 300280)

Huabei area suffered a sedimentary interruption of about 130 million years during Late Ordovicianto Devonian period. Therefore, whether the Early Palaeozoic carbonate rocks with a stable distribution and alarge thickness can secondarily generate hydrocarbon and form Primary oil and gas Pool is an important issueregarding the prospecting for Primary oil and gas Pools in the Lower Palaeozoic formations. Well Konggu 3,located in the northwestern Kongdian anticlinal structural belt, produced oil from the Primary Ordovician limestoneoil pool reserved in the Ordovician Fengfpog Formation. The crude oil Characteristics and oil-source correlationshow that oil source rock are Ordovician limestone. So it is a primary oil pool with source and reservoir rads inthe same formation. The studies on the secondsry hydrocarbon generation of source rocks and the primary oil ofWell Konggu 3 have a great significance to firmly prospect for Lower Palaeozoic primary oil and gas pools inHuabei area.

关键词： Subject heading Early Palaeozoic Primary reservoir Oil-source correlation Huanghua depression Huabei area

PETROLIFEROUS　PROVINCE　AND　RESOURCE　POTENTIAL　OF　THE　NORTHEAST　ASIA　THE　MOST　PROSPECTIVE　NEW──THE　MOST　PROSPECTIVE　NEW　PROVINCE　IN　ASIA

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石油勘探与开发 1994年第2期 110-118页

作者： Hu Jian-yi Xu Shu-bao Don Li-rong(research institute of petroleum exploration and development, CNPC.beijing, china, 100083)

ＰＥＴＲＯＬＩＦＥＲＯＵＳＰＲＯＶＩＮＣＥＡＮＤＲＥＳＯＵＲＣＥＰＯＴＥＮＴＩＡＬＯＦＴＨＥＮＯＲＴＨＥＡＳＴＡＳＩＡＴＨＥＭＯＳＴＰＲＯＳＰＥＣＴＩＶＥＮＥＷ──ＴＨＥＭＯＳＴＰＲＯＳＰＥＣＴＩＶＥＮＥＷＰＲＯＶＩ... 详细信息

ＰＥＴＲＯＬＩＦＥＲＯＵＳＰＲＯＶＩＮＣＥＡＮＤＲＥＳＯＵＲＣＥＰＯＴＥＮＴＩＡＬＯＦＴＨＥＮＯＲＴＨＥＡＳＴＡＳＩＡＴＨＥＭＯＳＴＰＲＯＳＰＥＣＴＩＶＥＮＥＷ──ＴＨＥＭＯＳＴＰＲＯＳＰＥＣＴＩＶＥＮＥＷＰＲＯＶＩＮＣＥＩＮＡＳＩＡＨｕＪｉａｎ－ｙ...

关键词： petroliferous basin folded belt (Northeast Asia) (Siberian Plate) (Sino-Korean Plate)