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Differences and identification on multi-time hydrocarbon generation of carboniferous-permian coaly source rocks in the huanghua depression,Bohai Bay Basin

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Petroleum Science 2024年第2期21卷 765-776页

作者： Jin-Jun Xu Xian-Gang Cheng Shu-Nan Peng Jun-Cai Jiang Qi-Long Wu Da Lou Fu-Qi Cheng La-Mei Lin National Key Laboratory of Deep Oil and Gas China University of Petroleum(East China)Qingdao 266580ShandongChina PetroChina Dagang Oilfield Company Tianjin300280China

Coal is a solid combustible mineral,and coal-bearing strata have important hydrocarbon generation potential and contribute to more than 12%of the global hydrocarbon ***,the deposition and hydrocarbon evolution process of ancient coal-bearing strata is characterized by multiple geological times,leading to obvious distinctions in their hydrocarbon generation potential,geological processes,and production,which affect the evaluation and exploration of hydrocarbon resources derived from coaly source rocks *** study aimed to identify the differences on oil-generated parent macerals and the production of oil generated from different coaly source rocks and through different oil generation *** with the analysis of previous tectonic burial history and hydrocarbon generation history,high-temperature and high-pressure thermal simulation experiments,organic geochemistry,and organic petrology were performed on the Carboniferous-Permian(C-P)coaly source rocks in the huanghua depression,Bohai Bay *** oil-generated parent macerals of coal's secondary oil generation process(SOGP)were mainly hydrogen-rich collotelinite,collodetrinite,sporinite,and cutinite,while the oil-generated parent macerals of tertiary oil generation process(TOGP)were the remaining small amount of hydrogen-rich collotelinite,sporinite,and cutinite,as well as dispersed soluble organic matter and unexhausted residual *** with coal,the oil-generated parent macerals of coaly shale SOGP were mostly sporinite and *** part of hydrogen-poor vitrinite,lacking hydrocarbon-rich macerals,and macerals of the TOGP,in addition to some remaining cutinite and a small amount of crude oil and bitumen from SOGP contributed to the oil *** results indicated that the changes in oil yield had a good junction between SOGP and TOGP,both coal and coaly shale had higher SOGP aborted oil yield than TOGP starting yield,and coaly shale TOGP peak oil yield was low

关键词： Thermal simulation Multi-time oil generation processes Coaly source rock Carboniferous-permian huanghua depression

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Characteristics,Distribution Patterns,and Classification of Volcanic Reservoirs in the huanghua depression,Bohai Bay Basin,China

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Journal of Earth Science 2024年第5期35卷 1464-1481页

作者： Jian Huang Changqian Ma Shihui Zhang Muyue Xu Da Lou Chongbiao Leng Mutian Qin Hongjun Li State Key Laboratory of Geological Processes and Mineral Resources Faculty of Earth SciencesChina University of GeosciencesWuhan 430074China Chongqing Industry Polytechnic College Chongqing 401120China Institute of Geophysics and Geomatics China University of GeosciencesWuhan 430074China Key Laboratory of Tectonics and Petroleum Resources of Ministry of Education China University of GeosciencesWuhan 430074China Dagang Oilfield Company China National Petroleum CorporationTianjin 300280China Hubei Earthquake Agency Wuhan 430071China Yichang Earthquake Monitoring Center Station Yichang 443100China College of Marine Geosciences Ocean University of ChinaQingdao 266000China

Identifying volcanic reservoir types and their distribution patterns in volcanic edifices is important for accurate prediction and exploration of hydrocarbon ***,we analyzed the distribution patterns of different reservoir levels in volcanic edifices,discussed controlling factors,and reclassified reservoir *** was done using core observations,whole-rock geochemistry,and reservoir physical property analysis,combined with logging,drilling,seismic,and oil-gas test *** can be divided into three classes based on their physical *** Mesozoic intermediate and basic rocks formed ClassⅠreservoirs,most lithologies formed ClassⅡreservoirs,and diabase intrusions and tight volcanic rocks formed ClassⅢ*** form in different lithologies in the huanghua depression due to *** faults deepen the influence of weathering leading to the formation of reservoirs in ***,volcanic rhythms and fractures control the vertical distribution of Cenozoic basaltic *** reservoirs are classified into five types based on the main controlling factors and distribution patterns in volcanic edifices:tectonic-alteration,vesiclefracture,weathered-effusive,weathered-eruptive,and weathered-tectonic *** these,the weathered-eruptive type can easily form ClassⅠreservoirs,making it the best target for *** the weathered-tectonic and vesicle-fracture types tend to develop ClassⅡreservoirs and can be potential *** new classification takes into account the relationship between reservoir levels and their distribution in volcanic edifices,it is more conducive to igneous reservoir prediction in the huanghua *** study provides a novel idea for the classification and comparative study of igneous reservoirs in petroliferous basins.

关键词： volcanic reservoir types volcanic edifice controlling factors weathering and tectonism huanghua depression petroleum geology

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Decipher hydrocarbon generation and accumulation based on fluid inclusion and chronology:A case study from the Upper Paleozoic buried-hills in huanghua depression,Bohai Bay Basin

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Petroleum Science 2023年第4期20卷 1998-2008页

作者： Li-Hong Zhou Yong Li Feng-Ming Jin Jin-Feng Xie Xiu-Gang Pu Li-Xin Fu Da Lou Yang Tian PetroChina Dagang Oilfield Company Tianjin300280China State Key Laboratory of Coal Resources and Safe Mining and College of Geosciences and Surveying Engineering China University of Mining and TechnologyBeijing100083China

Deciphering hydrocarbon generation and accumulation stage is of significance to understand oil and gas evolution and seek exploration *** the Upper Paleozoic buried-hills in the huanghua depression,Bohai Bay Basin,as a case study,hydrocarbon generation environment and detailed accumulation process are revealed by fluid inclusions observations,Laser Raman spectroscopy,Fourier Infrared spectroscopy,and K-Ar isotope *** results show that both oil and gas inclusion were captured in the quartz overgrowth,dissolved feldspar and calcite microfractures,showing blue to dark brown *** grains containing oil inclusions index(GOI)of oil,oil&gas and gas being 25%,65%,and 10%and the inclusions with abundant methyl groups and short chains,both indicate high thermal *** series of fluids inclusion is generally observed,evidenced by the concentrated homogenization temperature of 135-145℃ and salinity of 3%-15 w.t.%NaCl equiv,indicating one primary charging *** gas and gas&liquid inclusions mainly contain CH_(4),with also peaks indicating CO_(2) and N_(2.)The Carboniferous and Permian biomarkers show reducing environment with brackish water,with organic matter sources both from marine and *** relative content ofααα20RC_(27),ααα20RC_(28),andααα20RC_(29) exhibit source contributions both from algae and higher plants,and mainly of II2 to III *** coal derived gas and oil associated hydrocarbons are identified from most of the *** the fluid homogenization temperature and salinity,as well as the thermal evolution history,the hydrocarbon generated from the Upper Paleozoic was concentrated at the end of the Eocene(40 Ma±),while the beginning of charging is 60 Ma±.The Wumaying Buried-hill is of only coal derived gas and has potential for inner coal measure natural gas *** results provide a detailed understanding of hydrocarbon accumulations in the study area,which can also be reference for impro

关键词： Petroleum accumulation Buried hills K–Ar isotope Fluid inclusions huanghua depression Bohai Bay Basin

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Characteristics and formation of high quality reservoirs in sediment gravity flows of Gangzhong area,huanghua depression

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Journal of Central South University 2014年第2期21卷 745-752页

作者：杨有星金振奎卢言霞刁丽颖王濮刘春慧 College of Geosciences China University of Petroleum State Key Laboratory of Petroleum Resource and Prospecting PetroChina Coalbed Methane Company Limited Zhen Hua Oil Co.Ltd.

Reservoirs can be developed in the sediment gravity ***,high quality reservoirs are found widespread in sediment gravity flows of Gangzhong area,huanghua depression,Bohai Bay Basin,East *** and formation of these reservoirs are key problems to be *** comprehensive analysis of thin section petrography,scanning electron microscopy and X-ray diffraction,two distinct rules were obtained.1) These high quality reservoirs have apparent characteristics:lithology consists mainly of medium-fine grained sands; moderately-well sorted and rounded; intergranular pores dominating >70% of the entire pores,surface per unit pore volume reaches 15%; average porosity is 21% and average permeability is 55×10-3 μm2.2) Types of sedimentary microfacies and dissolution strongly control on the formation of high quality *** channels and sandy braided bars have the best reservoir *** that sediments are mainly medium-fine grained sands in high-energy *** favorable primary porosity and permeability may promote calcite cementation and help to produce more secondary ***,at the depth of 2500-3200 m,basically matching threshold of oil generation,organic acid expelled when organic matter became mature,and H+ released during clay mineral *** both result in the dissolution of calcite cements and create large volume pores,then physical properties improve ***,deep hydrothermal fluid intrusion may also have impacts on the development of secondary pores.

关键词： huanghua depression sediment gravity flows diagenesis intergranular pores hydrothermal fluid intrusion

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Characteristics of the Cretaceous Magmatism in huanghua depression and Their Relationships with Hydrocarbon Enrichment

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Journal of Earth Science 2020年第6期31卷 1273-1292页

作者： Fengming Jin Jian Huang Xiugang Pu Changqian Ma Lixin Fu Chongbiao Leng Da Lou Mutian Qin Dagang Oilfield Company China National Petroleum CorporationTianjin 300280China State Key Laboratory of Geological Processes and Mineral Resources China University of GeosciencesWuhan 430078China School of Earth Sciences China University of GeosciencesWuhan 430074China

The huanghua depression located in the hinterland of the Bohai Bay Basin in eastern China is a typical area for the research of multistage magmatic activities with hydrocarbon enrichment,many high-yield wells related to igneous rocks were discovered within the Cretaceous strata in recent ***,the spatial and temporal distribution of Cretaceous igneous rocks remains unclear,and the relationships among magmatic sequence,lithology,and hydrocarbon enrichment have been poorly *** order to solve these problems,core observation,logging analysis,major element analysis,zircon U-Pb chronology,oil-bearing grade statistics and reservoir spaces analysis were used to subdivide the magmatism cycles and to investigate the characteristics of igneous *** results show that the Mesozoic magmatism in huanghua depression started in 140.1±1.4 Ma and could be divided into two stages including the Early Cretaceous stage and Late Cretaceous *** Early Cretaceous magmatism principally developed basic-intermediate rocks in the north zone,and could be subdivided into 3 cycles with their forming ages of 140,125–119,and 118–111 Ma,*** contrast,the late stage mainly developed intermediate-acid rocks centralized in the south zone and formed at 75–70 *** GR and SP curves are good indicators for the contrast of different lithologies,lithofacies and for magmatic sequences *** magmatism may have an advantage to form reservoirs,since basalt in cycle III in the Early Cretaceous and dacite porphyrite in the Late Cretaceous have great exploration *** and tectonic fractures have an important influence on the formation of reservoir spaces and hydrocarbon *** characteristics of Cretaceous magmatism and igneous reservoirs in huanghua depression and adjacent areas are summarized,providing important information for igneous reservoirs research and oil-gas exploration in the Cretaceous in related areas.

关键词： Cretaceous magmatism magmatic sequences division igneous reservoir hydrocarbon enrichment huanghua depression oil-gas reservoir space

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Discovery and its geological significance of the mantle- derived helium in the inclusions of the Ordovician oil-bearing reservoir rocks in the huanghua depression,China

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Science China Earth Sciences 2004年第1期47卷 23-29页

作者： ZHANG Xnobao XU Yongchang SUN Mingliang CHENG Keming LIU Wenhui LIXiufen MA Liyuan State Key Laboratory of Gas Geochemistry Lanzhou Instinute of Geology.Chinese Academy of SciencesLanzhou 730000China Research Institute of Explontion and Development China National Petrole um CorpontionBeijing 100083China

The values of the helium isotopes in the inclusions of the Ordovician reservoir rocks in the Kongxi buried hill belt in the huanghua depression were first measured and the source of helium and its geological significance were investigated in comparison with those of the helium isotopes in the conclusions in the Ordovician rocks in the Ordos basin and the Tarim basin. The input of the mantle-derived helium into the inclusions in the carbonate reservoir rocks was found from the Konggu 3 well, the Konggu 4 well, and the Konggu 7 well in the Kongxi buried hill belt. The 3He/4He and R/Ra in the conclusions in the Ordovician oil-bearing reservoir rocks in the Konggu 7 well average 2.54×10-6(3) (sample quantity, the same below) and 1.82(3), respectively. The percent of the mantle-derived helium in the inclusions of the reservoir rocks in the Konggu 7 well reaches up to an average of 23.0%(3). The age of the contribution of the mantle-derived helium to the inclusions in the Kongxi buried hill belt is in the Late Triassic or the Early Tertiary. The finding of the mantle-derived helium shows that the interaction of the deep crust with mantle and the activity of deep faults occurred, the terrestrial heat flow value was high, and mantle-derived inorganic gas pools might be formed in the Kongxi buried hill belt. The finding of the mantle-derived helium in the inclusions of oil-bearing reservoir rocks also provides a new way for researching the activity of mantle-derived matter and its associated geological problems.

关键词： oil-bearing reservoir rock mantle-derived helium geological significance huanghua depression

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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

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Hydrocarbon generation from Carboniferous-Permian coaly source rocks in the huanghua depression under different geological processes

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Petroleum Science 2020年第6期17卷 1540-1555页

作者： Jin-Jun Xu Qiang Jin Key Laboratory of Deep Oil and Gas China University of Petroleum(East China)Qingdao 266580ShandongChina Pilot National Laboratory for Marine Science and Technology China University of Petroleum(East China)Aoshanwei Wenhai Road 1Qingdao 266237ShandongChina

Natural gas and condensate derived from Carboniferous-Permian(C-P)coaly source rocks discovered in the Dagang Oilfield in the Bohai Bay Basin(east China)have important implications for the potential exploration of C-P coaly source *** study analyzed the secondary,tertiary,and dynamic characteristics of hydrocarbon generation in order to predict the hydrocarbon potentials of different exploration areas in the Dagang *** results indicated that C-P oil and gas were generated from coaly source rocks by secondary or tertiary hydrocarbon generation and characterized by notably different hydrocarbon products and generation *** hydrocarbon generation was completed when the maturity reached vitrinite reflectance(Ro)of 0.7%-0.9%before uplift prior to the *** hydrocarbon generation from the source rocks was limited in deep buried sags in the Oligocene,where the products consisted of light oil and *** activation energies for secondary and tertiary hydrocarbon generation were 260-280 kJ/mol and 300-330 kJ/mol,respectively,indicating that each instance of hydrocarbon generation required higher temperature or deeper burial than the previous *** with secondary or tertiary hydrocarbon generation from C-P coaly source rocks were interpreted as potential oil and gas exploration regions.

关键词： Hydrocarbon generation Thermal simulation Coaly source rocks Carboniferous-Permian huanghua depression

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Distribution and genesis of secondary pores in Paleogene clastic reservoirs of Beidagang structural belt in the huanghua depression

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Mining Science and Technology 2010年第1期20卷 115-120页

作者： SU Nina, JIN Zhenkui, SONG Fan Faculty of Natural Resource and Information Technology, China University of Petroleum, Beijing 102249, China Faculty of Natural Resource and Information Technology China University of Petroleum Beijing 102249 China

The distribution and genesis of secondary pores in Paleogene clastic reservoirs of Beidagang structural belt in the huanghua depression have been systematically studied. We investigated sedimentary facies and carried out a comprehensive analy-sis of the vast amount of data from casting thin sections, scanning electron microscope and physical data. Then we analyzed the pore types, pore evolution, distribution and genesis of secondary pores in our study area and discussed the factors controlling the distribution of secondary pores. The results show that pores in the study area are largely composed of intergranular dissolution pores and constituent dissolved pores. Three secondary pore zones were developed in the study area at depths of 2800~3400 m, 3600~4200 m and 4500~4800 m. Secondary pores have been formed mainly because carbonate cement, feldspar, clastic debris and other plastic substances were dissolved by organic acid, released during the evolution of organic matter and acid water formed by CO2. The development and distribution of secondary pores are vertically controlled by the maturity time of source rocks and hori-zontally by the distribution of acid water. As well, this distribution was affected by the sedimentary facies belt and the development of fault zones.

关键词： huanghua depression Beidagang structural belt Paleogene clastic reservoirs secondary pores controlling factor

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Generalized Pareto Distribution Model and Its Application to Hydrocarbon Resource Structure Prediction of the huanghua depression

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Petroleum Science 2006年第2期3卷 22-27页

作者： Liu Xiaoping Jin Zhijun Chen Shanyong Liu Lifang Basin and Reservoir Research Center China University of Petroleum Beijing 102249 China Key Laboratory for Hydrocarbon Accumulation Mechanism of Ministry Education China Universi（y of Petroleum Beijing 102249 China Exploration and Production Research Institute SINOPEC Beijing 100083 China Science and Technology Information Department of Dagang Oilfield CNPC Tianjing 300280 China China University of Geosciences Beijing 100083 China

The generalized Pareto distribution model is a kind of hydrocarbon pool size probability statistical method for resource assessment. By introducing the time variable, resource conversion rate and the geological variable, resource density, such model can describe not only different types of basins, but also any exploration samples at different phases of exploration, up to the parent population. It is a dynamic distribution model with profound geological significance and wide applicability. Its basic principle and the process of resource assessment are described in this paper. The petroleum accumulation system is an appropriate assessment unit for such method. The hydrocarbon resource structure of the huanghua depression in Bohai Bay Basin was predicted by using this model. The prediction results accord with the knowledge of exploration in the huanghua depression, and point out the remaining resources potential and structure of different petroleum accumulation systems, which are of great significance for guiding future exploration in the huanghua depression.

关键词： Generalized Pareto distribution model hydrocarbon resource assessment hydrocarbon resource structure huanghua depression

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