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Timing and history of marine hydrocarbon accumulation in Tarim craton

Chinese Science Bulletin 2002年第S1期47卷 120-127页

作者： ZHAO Jingzhou~(1,2) & LI Qiming~3.1. Department of petroleum Geology, Xi’an petroleum institute, Xi’an 710065,{3. 2. research institute of petroleum exploration and development, petrochina, Beijing 100083.{3. 3. Tarim Oilfield Company, Kuerle, Xinjiang 841000,{3. Xian Petr Inst Dept Petr Geol Xian 710065 Peoples R China petrochina Res Inst Petr Explorat & Dev Beijing 100083 Peoples R China Tarim Oilfield Co Xinjiang 841000 Peoples R China

Based on the analyses of hydrocarbon inclu-sions, K-Ar dating of authigenic illites and oil/gas-watercontact retrospection as well as other methods, the marineprimary reservoirs in the cratonic region of the Tarim Basinare found to have been formed in the late Caledonian toearly Hercynian, late Hercynian, and Himalayan, and oil andgas adjusted and redistributed in the Yanshanian (Jurassic toCretaceous) and Himalayan (Tertiary). The analyses alsoshow that the remaining primary oil accumulations aremostly formed in the late Hercynian, and the secondary oilreservoirs resulted from the adjustment and redistribution ofthe earlier accumulations during the Yanshanian and Hima-layan (especially late Himalayan), of which the Himalayan isalso the major stage of gas accumulation. The primary oilreservoirs formed in the late Hercynian mostly occur withinthe Paleozoic formation, whereas the secondary reservoirsformed in the Himalayan in the Mesozoic. The late adjust-ment and redistribution of reservoirs in the craton region ofthe Tarim Basin is ubiquitous because of the intensified tec-tonic movements since the Mesozoic, especially Cenozoic andintrusion of the high- to over-mature gas. Furthermore, thelower amplitude of reservoirs in the craton region also makesthem easier to be adjusted and redistributed. Therefore, theremaining paleo-uplift and palaeo-slope developed in rela-tively stable tectonic regions are the main potential areas forthe middle-large marine reservoirs in the Tarim Basin.

关键词： Tarim Basin craton geochronology of hydrocarbon accumulation history of hydrocarbon accumulation marine reservoir primary reservoir secondary reservoir.

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Sequence stratigraphic framework and distribution of depositional systems for the Paleogene in Liaodong Bay area

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Science china Earth Sciences 2008年第S2期51卷 1-10页

作者： ZHU XiaoMin1,DONG YanLei1,YANG JunSheng1,ZHANG Qin1,LI DeJiang2,XU ChangGui3.& YU Shui3.1 National Key Laboratory of petroleum Resources and Prospecting,china University of petroleum,Beijing 102249,china 2 research institute of petroleum exploration and development——langfang,petrochina,langfang 065007,china 3.Technology Department of CNOOC Tianjin Company,Tianjin 3.0452,china china Univ Petr Natl Key Lab Petr Resources & Prospecting Beijing 102249 Peoples R China petrochina Res Inst Petr Explorat & Dev Langfang Langfang 065007 Peoples R China CNOOC Tianjin Co Dept Technol Tianjin 300452 Peoples R China

With a comprehensive geological and geophysical data base,the Paleogene in the Liaodong Bay area,which consists of the Kongdian,Shahejie and Donghying Formations from the base to top,was divided into 4 second-order sequences and 8 third-order sequences based on the characteristics of the se-quence boundaries. Each third-order sequence is subdivided into the lowstand,lake transgressive and highstand systems tracts. The Lowstand systems tract (LST) is mainly composed of progradational parasequence sets,while the lake transgressive systems tract (TST) largely consists of the retrograda-tional parasequence sets and the highstand systems tract (HST) is dominated by the progradational parasequence sets. The main types of depositional systems include the shallow lake,semi-deep lake,deep lake,delta,fan delta,braided fluvial delta and nearshore subaqueous fan. The braided fluvial delta and fan delta depositional systems are mainly confined to the sequences of the lower SEs4-Ek,SEs3.and SEs1+2,while the sequences of SEd3.SEd2 and SEd1 are dominated by the delta and nearshore subaqueous fan depositional systems with the latter being developed at the downthrown side of the basin-bounding fault in each sequence. The evolution of the depositional systems is always con-trolled by the paleo-tectonic setting and the ancient landform in the space and geological time. It is concluded that the most favorable reservoirs are distributed in the Liaoxi low uplift and the central Liaozhong sag.

关键词： Liaodong Bay area Paleogene sequence stratigraphy sequence boundary depositional system

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中国地下储气库的需求与挑战

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天然气工业 2011年第12期31卷 90-93,131页

作者：丁国生中国石油勘探开发研究院廊坊分院

建设地下储气库是保障安全平稳供气的主要手段之一。为此,介绍了国外地下储气库建设的主要特点和成功经验,并总结出了对中国建设地下储气库的3.启示:①地下储气库因其储气规模大、占地少、安全性能高、不污染环境等特点,成为当今世界... 详细信息

建设地下储气库是保障安全平稳供气的主要手段之一。为此,介绍了国外地下储气库建设的主要特点和成功经验,并总结出了对中国建设地下储气库的3.启示:①地下储气库因其储气规模大、占地少、安全性能高、不污染环境等特点,成为当今世界上最主要的天然气储存方式和调峰手段;②地下储气库工作气量应达到天然气年消费量的15%左右,才能有效保障调峰和安全平稳供气的需要;③有别于常规的气田开发,应根据地下储气库自身的特点进行建设和运行,并注重吸收国外的成熟技术和经验。同时对中国地下储气库的发展需求进行了分析,认为:虽然中国地下储气库建设起步较晚,但由于中国天然气消费需求量的不断增长、天然气消费结构的改变、调峰及天然气战略储备的要求、非常规天然气利用等诸多因素的共同作用,中国地下储气库的需求将快速增长,预计到2020年地下储气库工作气量需求将达到650×108 m3.203.年将达到1 100×108 m3.还指出了中国储气调峰领域存在的瓶颈问题:①地下储气库建设滞后于天然气管道建设;②天然气管道和气田调峰手段弱,根本满足不了天然气下游市场的需要;③已经掌握的建库地质资源少,与未来建库需求存在较大的差距;④地下储气库的设计、建造技术与复杂的建库地质条件不相适应。最后探讨了中国地下储气库建设将面临的资源、技术以及管理方面的挑战。

关键词：中国地下储气库现状发展趋势需求技术瓶颈挑战

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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 {3. of exploration and development, petrochina, Bei- jing 100083. china 3. research {3. of exploration and development, Xinjiang Oilfield Company, petrochina, Karamay 83.000, china State Key Laboratory for Mineral Deposit research Department of Earth Sciences Nanjing University Nanjing 210093 China research institute of exploration and {3. PetroChina Beijing 100083 China research institute of exploration and {3. Xinjiang Oilfield Company PetroChina Karamay 834000 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.

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Present geotemperature and its suggestion to natural gas generation in Xujiaweizi fault-depression of the northern Songliao Basin

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Science china Earth Sciences 2008年第S1期51卷 207-220页

作者： ZHOU QingHua 1,2 ,FENG ZiHui 3.&MEN GuangTian 3.1 research institute of petroleum exploration and development,petrochina,Beijing 100083.china 2 Geological Logging Subcompany of Daqing Oil Field Company Ltd.,Daqing 163.11,china 3.0} of Daqing Oil field Company Ltd.,Daqing 163.3.,china petrochina Res Inst Petr Explorat & Dev Beijing 100083 Peoples R China Daqing Oil Field Co Ltd Geol Logging Subco Daqing 163411 Peoples R China Daqing Oil field Co Ltd Res Inst Petr Explorat & Dev Dacling 163732 Peoples R China

According to stastistic of present geotemperatures at the depths of 1000,2000,3.00 and 4000 m,respectively in the Xujiaweizi fault-depression of the north Songliao Basin,the result indicates that Xujiaweizi fault-depression falls in the high geotemperature area,with the higher geothermal gradient in the depression layer than that in the fault-depression *** geothermal gradient decreases with the increasing of the *** thermal conductivity of rock greatly controls the geothermal *** main factors constraining the current geotemperature include thermal configuration of the earth's crust, deep faults,distribution and abundance of *** high geotemperature is in favour of generation of deep gas.

关键词： Xujiaweizi fault-depression geotemperature geothermal gradient thermal conductivity of rock deep layer natural gas

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Characteristics,genesis and accumulation history of natural gas in Hetianhe gasfield,Tarim Basin,china

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Science china Earth Sciences 2008年第S1期51卷 84-95页

作者： WANG ZhaoMing 1 ,WANG QingHua 1 ,ZHAO MengJun 2 ,LI Yong 1 &XU ZhiMing 3.1 Tarim Oilfield Company,petrochina,Kuerle 841000,china 2 research {3. of petroleum exploration&development,petrochina,Beijing 100083.china 3.Southwest petroleum {3.,Nanchong 63.001,china petrochina Res Inst Petr Explorat & Dev Beijing 100083 Peoples R China petrochina Tarim Oilfield Co Kuerle 841000 Peoples R China SW Petr Inst Nanchong 637001 Peoples R China

Hetianhe gasfield in Bachu region of the Tarim Basin is mainly composed of three reservoir-caprock assembly,namely regional caprock of upper mudstone,middle mudstone and lower mudstone of the Carboniferous and reservoir of Bachu bioclastic limestone,glutenite and the Ordovician carbonate buried *** gas in Hetianhe gasfield sourced from the Cambrian source *** is thought that gases in Ma4 well block in the east of Hetianhe gasfield are mainly crude-oil cracked gases,while those in Ma3.and Ma8 well blocks in the west are the mixture gases of kerogen cracked gases and crude-oil cracked *** gas is rich in H2S and accumulated in multiply stages as the result of *** accumulation history is divided into three stages,namely accumulation and breakage in the late Caledonian-early Hercynian,migration and dissipation in the late Hercynian and accumulation in Himalayan. The main accumulation of reformed gas reservoir is in Himalayan.

关键词： gas characteristics gas genesis accumulation history Hetianhe gasfield Tarim Basin

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Cracking conditions of crude oil under different geological environments

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Science china Earth Sciences 2008年第S1期51卷 77-83页

作者： ZHAO WenZhi,WANG ZhaoYun,ZHANG ShuiChang&WANG HongJun research institute of petroleum {3.&development,petrochina,Beijing 100083.china petrochina Res Inst Petr Explorat & Dev Beijing 100083 Peoples R China

There are mainly 3.kinds of existing states of oil generating from source rocks,that is,dispersive liquid hydrocarbon inside of source rock,dispersive liquid hydrocarbon outside of source rock and concentrated liquid hydrocarbon outside of source *** of the differences in thermal history and medium conditions around,and the interaction of organic and inorganic matter,the liquid hydrocarbon with 3.kinds of existing state has different cracking *** gas generation dynamics experiments of crude oil matching different mediums indicate that the distribution of activation energy of methane changes a lot according to medium *** carbonate has a main influence on oil cracking conditions and can largely reduce its activation energy,which reflects the lower cracking temperature of crude *** mudstone takes a second place and the sandstone is the *** catalytic cracking function to the oil of the carbonate,of the mudstone and of the sandstone changes weaken in *** corresponding Ro values of main gas generation period in different mediums are as follows:1.5%―3.8%with pure crude oil,1.2%―3.2%with dispersive crude oil in carbonate,1.3.~3.4% with dispersive crude oil in mudstone and 1.4%―3.6%with dispersive crude oil in *** influence of pressure to crude oil cracking is relatively *** the low heating speed condition, pressure restrains the oil cracking and gas generation,but in the high heating speed condition,pressure has an indistinctive influence to the oil cracking and gas *** also makes a different effort in different evolvement *** the middle and lower Cambrian source rocks in the Tarim Basin as an example,primary oil generating quantity is 223..24×10 8 t,residual oil and oil cracking gas quantity is 806.21×10 8 t and 106.95×10 12 m 3.respectively.

关键词： different existing state oil cracking condition gas source rock kitchen of oil cracking type

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

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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 research,Department of Earth Sciences,Nanjing University,Nanjing 210093.china 2 research {3. of exploration and development,petrochina,Beijing 100083.china 3.research {3. 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 {3. PetroChina Beijing 100083 China 3. research institute of exploration and {3. 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.