检索结果-南通市图书馆

Geophysical prediction of organic matter abundance in source rocks based on geochemical analysis:A case study of southwestern bozhong sag,Bohai Sea,China

引用

Petroleum Science 2024年第1期21卷 31-53页

作者： Xiang Wang Guang-Di Liu Xiao-Lin Wang Jin-Feng Ma Zhen-Liang Wang Fei-Long Wang Ze-Zhang Song Chang-Yu Fan State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum(Beijing)Beijing102249China College of Geosciences China University of Petroleum(Beijing)Beijing102249China State Key Laboratory of Continental Dynamics Northwest UniversityXi'an710069ShaanxiChina Department of Geology Northwest UniversityXi'an710069ShaanxiChina CNOOC Tianjin Branch Company Tianjin300459China

The bozhong sag is the largest petroliferous sag in the Bohai Bay Basin,and the source rocks of Paleogene Dongying and Shahejie Formations were buried *** of the drillings were located at the structural high,and there were few wells that met good quality source rocks,so it is difficult to evaluate the source rocks in the study area precisely by geochemical analysis *** on the Rock-Eval pyrolysis,total organic carbon(TOC)testing,the organic matter(OM)abundance of Paleogene source rocks in the southwestern bozhong sag were evaluated,including the lower of second member of Dongying Formation(E_(3)d2L),the third member of Dongying Formation(E_(3)d_(3)),the first and second members of Shahejie Formation(E_(2)s_(1+2)),the third member of Shahejie Formation(E_(2)s_(3)).The results indicate that the E_(2)s_(1+2)and E_(2)s_(3)have better hydrocarbon generative potentials with the highest OM abundance,the E_(3)d_(3)are of the second good quality,and the E_(3)d2L have poor to fair hydrocarbon generative ***,the well logs were applied to predict TOC and residual hydrocarbon generation potential(S_(2))based on the sedimentary facies classification,usingΔlogR,generalizedΔlogR,logging multiple linear regression and BP neural network *** various methods were compared,and the BP neural network method have relatively better prediction *** on the pre-stack simultaneous inversion(P-wave impedance,P-wave velocity and density inversion results)and the post-stack seismic attributes,the three-dimensional(3D)seismic prediction of TOC and S_(2)was carried *** results show that the seismic near well prediction results of TOC and S_(2)based on seismic multi-attributes analysis correspond well with the results of well logging methods,and the plane prediction results are identical with the sedimentary facies map in the study *** TOC and S_(2)values of E_(2)s_(1+2)and E_(2)s_(3)are higher than those in E_(3)d_(3)and E_(3)d_(2)L,basicall

关键词： Total organic carbon(TOC) Residual hydrocarbon generation potential(S_(2)) Geophysical prediction Seismic attribute bozhong sag Bohai Bay Basin

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Impact of microorganism degradation on hydrocarbon generation of source rocks:A case study of the bozhong sag,Bohai Bay Basin

引用

Acta Oceanologica Sinica 2023年第3期42卷 243-253页

作者： Wei Li Yufei Gao Youchuan Li China National Offshore Oil Corporation(CNOOC)Research Institute Co. Ltd.Beijing 100028China

The discovery of the bozhong 19-6 gas field,the largest integrated condensate gas field in the eastern China in 2018,opened up a new field for the natural gas exploration deep strata in the Bohai Bay Basin,demonstrating there is a great potential for natural gas exploration in oil-type *** ethane isotope of the bozhong 19-6 condensate gas is heavy,showing the characteristics of partial humic *** this paper,aimed at the source rocks of the bozhong 19-6 gas field in the Bohai Bay Basin,the characteristics of the source rocks in the bozhong 19-6 structural belt were clarified and the reason are explained from impact of microorganism degradation on hydrocarbon generation of source rocks why the condensate oil and gas had heavy carbon isotope and why it showed partial humic characteristics was explored based on the research of parent *** following conclusions were obtained:The paleontology of the bozhong 19-6 structural belt and its surrounding sub-sags is dominated by higher plants,such as angiosperm and *** the formation of source rocks,under the intensive transformation of microorganism,the original sedimentary organic matter such as higher plants was degraded and transformed by ***,the transformation of anaerobic microorganisms on source rocks causes the degradation and defunctionalization of a large number of humic products such as higher plants and the increase of hydrogen *** degradation and transformation of microorganism don't transform the terrestrial humic organic matter into newly formed“sapropel”hydrocarbons,the source rocks are mixed partial humic source *** a result,hydrogen content incrased and the quality of source rocks was improved,forming the partial humic source rocks dominated by humic amorphous *** partial humic source rocks are the main source rocks in the bozhong 19-6 gas field,and it is also the internal reason why the isotope of natural gas is heavy.

关键词： bozhong sag natural gas types of source rocks Microorganism degradation hydrocarbon generation of source rocks

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Paleoenvironmental Characteristics of Paleogene Lacustrine Source Rocks in the Western bozhong sag,Bohai Bay Basin,China:Evidence from Biomarkers,Major and Trace Elements

引用

Acta Geologica Sinica(English Edition) 2024年第1期98卷 220-240页

作者： WANG Xiang LIU Guangdi SONG Zezhang SUN Mingliang WANG Xiaolin WANG Feilong CHEN Rongtao GENG Mingyang LI Yishu State Key Laboratory of Petroleum Resources and Prospecting China University of PetroleumBeijing 102249China College of Geosciences China University of PetroleumBeijing 102249China China National Offshore Oil Co. Ltd.(CNOOC)Tianjin Branch CompanyTianjin 300459China CNOOC Research Institute Beijing 100028China

The organic matter(OM)enrichment mechanisms and depositional environment characteristics of lacustrine source rocks in the western bozhong sag,Bohai Bay Basin in Northeast China remain *** address these issues,based on Rock-Eval pyrolysis,kerogen macerals,H/C and O/C ratios,GC-MS,major and trace elements,the Dongying Formation Member(Mbr)3(E_(3)d_(3)),the Shahejie Formation mbrs 1 and 2(E_(2)s_(1+2)),and the Shahejie Mbr 3(E_(2)s_(3))source rocks in the western bozhong sag were *** above methods were used to reveal their geochemical properties,OM origins and depositional environments,all of which indicate that E_(2)s_(1+2)and E_(2)s_(3)are excellent source rocks,and that E_(3)d_(3)is of the second good quality.E_(3)d_(3)source rocks were formed under a warm and humid climate,mainly belong to fluvial/delta facies,the E_(3)d_(3)sediments formed under weakly oxidizing and freshwater ***,the depositional environments of E_(2)s_(1+2)source rocks were arid and cold climate,representing saline or freshwater lacustrine facies,and the sediments of E_(2)s_(1+2)belong to anoxic or suboxic settings with large evaporation and *** the period of E_(2)s_(3),the climate became warm and humid,indicating the freshwater lacustrine facies,and E_(2)s_(3)was characterized by freshwater and abundant ***,compared with other intervals,the OM origin of E_(3)d_(3)source rocks has noticeable terrestrial *** OM origin of the E_(2)s_(1+2)and E_(2)s_(3)are mainly plankton and *** subsidence and climate change have affected the changes of the depositional environment in the western bozhong sag,thus controlling the distribution of the source rocks,the geochemical characteristics in the three intervals of lacustrine source rocks have distinct ***,these factors are effective to evaluate the paleoenvironmental characteristics of source rocks by biomarkers,major and trace *** established models

关键词： petroleum geology source rocks depositional environments biomarkers major elements trace elements bozhong sag

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Reservoir Characteristics and Controlling Factors of the Metamorphic Buried Hill of bozhong sag, Bohai Bay Basin

引用

Journal of Earth Science 2021年第4期32卷 919-926页

作者： Yong’an Xue Meng Zhao Xiaojian Liu China National Offshore Oil Corporation Tianjin BranchTianjin 300459China

The burial depth of the metamorphic buried hill of the bozhong sag is more than 4500 m,however,the controlling factors of the reservoirs are not *** on cores and sidewall cores obtained from 15 wells,this paper describes the reservoir characteristics and discussed their controlling *** metamorphic basement of the bozhong sag consists of metamorphic granite,migmatitic granite and *** felsic rocks are more likely to develop fractures,thereby improving the reservoir *** Indosinian,Yanshanian and Himalayan tectonic events greatly reformed the bozhong 19-6 metamorphic buried hill,forming a large scale fracture *** and deep thermal fluid contributed to the development of dissolved pores of the *** general,controlled by lithology,tectonics,weathering and deep thermal fluid,the reservoir pattern of the metamorphic buried hill of the bozhong 19-6 structure was established.

关键词： metamorphic rocks buried hill bozhong sag Bohai Bay Basin

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Palaeoclimate of the Paleogene Dongying Formation in bozhong sag of Bohai Bay Basin

引用

Petroleum Research 2021年第4期6卷 368-378页

作者： Juan Zhang Chenchen Wang Jingmin Wang Linbo wang Yunqian Jia Rongrong Hu College of Earth Sciences Yangtze UniversityWuhan430100HubeiChina Laboratory of Reservoir Microstructure Evolution and Digital Characterization Wuhan430100HubeiChina Cooperative Innovation Center of Unconventional Oil and Gas Yangtze UniversityWuhan430100China School of Petroleum Engineering Yangtze UniversityWuhan430100China

It was showed that the sedimentary environment of lacustrine basins is more susceptible to basin size than that of marine basins,leading to frequent changes in sedimentary environment and large differences in sediment supply and *** on the comprehensive analysis of clay minerals,spore pollen,major elements and trace elements,the sedimentary environment of Dongying Formation and its evolution in bozhong sag were *** results showed that during the sedimentary period of Dongying Formation,the study area was in a subtropical warm and humid climate as a *** addition,the vertical distribution of spore pollen and algae was divided into four zones and each one represents different sedimentary *** zone I is characterized by a large number of spore pollen and algae,including juglanspollenites verus,ulmipollemites minor,abietineaepollenites and pinuspollenites,taxodiaceaepollenites hiatus,leiosphaeridia and granodiscus,and it indicates a relatively hot and dry climatic;Combination zone II mainly contains juglanspollenites verus,ulmipollemites minor,abietineaepollenites and pinuspollenites,pediastrum and *** with I,the number of spore pollen and algae decreases,but the number of pediastrum increases a lot,which represents warm and humid *** combination zone III is dominated by abietineaepollenites and pinuspollenites and chaetosphaeridium,and the species and quantity decrease *** indicates a relatively hot and humid climate at that *** zone IV contains a small amount of spore pollen and algae,and it means the climate was warm and humid at that *** frequent changes of sedimentary environment in lacustrine basins are influenceded by regional tectonic environment and basin *** S/A and E-T parameters,the paleoclimate in the study area was delineated and 10 sedimentary environment interfaces were identified,which further illustrated the characteristics of frequent fluctuati

关键词： Clastic rocks Spore pollen assemblage zone Sedimentary environment bozhong sag Lacustrine basin

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Distribution characteristics and its controlling factor of lacustrine high-quality source rocks in the bozhong sag,Bohai Bay Basin

引用

Petroleum Research 2019年第3期4卷 227-237页

作者： Hefeng Sun Lifang Liu Xue Jiang Shengbing Huang Mingyang Geng Shaoping Chen Nan Li Pu Shen CNOOC International Limited Beijing100027China CNOOC Research Institute Co.Ltd. Beijing100028China

Distribution of Paleogene lacustrine high-quality source rocks in the bozhong sag in Bohai Bay Basin is analyzed through data of geochemistry,geology and well logging,and its differences under the control of climate and tectonics is also well *** characteristics of the high-quality source rocks developed in the saline environment controlled by the climate are quite different from that developed in the rapid subsidence environment controlled by *** high-quality source rocks in Member 1 of Shahejie Formation developed in the saline environment account for 81.9%of total subsag area,and are distributed widely and *** high-quality source rocks in Member 3 of Shahejie Formation and Member 3 of Dongying Formation is developed in the tectonic subsidence environment,and horizontally,the subsag subsidence rates has a positive correlation with the area proportion of the high-quality source rocks in the sag;vertically,the reduction-oxidation interface of the lake controls the enrichment of highquality source *** by the saline environment and rapid subsidence environment,the highquality source rocks in the bozhong sag and adjacent areas have three types of development condition:the saline water,the tectonic subsidence,and joint control of the saline water and the tectonic *** humid climate and low subsidence rate are not favorable for development of high-quality source rocks.

关键词： Lacustrine high-quality source rocks Saline environment Rapid subsidence Reduction-oxidation interface bozhong sag Bohai Bay Basin

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Diagenesis and diagenetic stages prediction of Ed2 reservoir in the west of bozhong sag

引用

Petroleum 2020年第1期6卷 23-30页

作者： Wendao Qian Taiju Yin Changmin Zhang Guowei Hou Miao He Yangtze University Wuhan430100China Shanghai Branch of CNOOC Ltd. Shanghai200030China

Diagenesis of clastic rock and hydrocarbon generating capacity are closely related with diagenetic *** on diagenetic evolution,reservoir diagenetic stages prediction method is proposed through making a contrastive study of simulation results and test results using core measurement *** essence of this method is illustrated and its effectiveness is demonstrated using Ed2 clastic sandstones in the west of bozhong sag,Bohai Bay Basin,*** of paleo temperature(T),vitrinite reflectivity(Ro%)and the proportion of smectite in illite/smectite interstratified minerals(I/S-S%)indicate that there are there types of diagenetic stages in the study area,including early diagenetic stage B,middle diagenetic stage A1 and middle diagenetic stage *** only considering T index for diagenetic stages prediction,the simulation results are more conservative than measured data with some situations,and the simulation result using Ro%for diagenetic prediction is less than measured data in some *** I/S-S%is used,the two situations above both *** depth,temperature,time duration,pressure and some chemical variables can change synchronously or asynchronously,it is difficult to attribute with certainty the parameters that affect the apparent diagenetic stages evolution *** stage variations can be significantly different in different parts of one sedimentary basin.A synthetic indexes method considering T,Ro%,I/S-S%to predict its distribution,and the simulation result has proved that the reliability of the model has greatly improved.

关键词： Diagenetic stages Clastic sandstones bozhong sag Diagenetic simulation Overpressure Synthetic indexes

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Division and identification of vertical reservoir units in Archaeozoic metamorphic buried hill of bozhong sag,Bohai Bay Basin,East China

引用

Petroleum Exploration and Development 2022年第6期49卷 1282-1294页

作者： YI Jian LI Huiyong SHAN Xuanlong HAO Guoli YANG Haifeng WANG Qingbin XU Peng REN Shuyue College of Earth Sciences Jilin UniversityChangchun 130061China Tianjin Branch of China National Offshore Oil Company Ltd. Tianjin 300452China

Based on the data associated with cores,sidewall cores,casting thin sections,reservoir physical properties,conventional logging and imaging logging,the classification schemes of vertical reservoir units are proposed for the two types of Archaeozoic buried hills(exposed and covered ones)in the bozhong sag,Bohai Bay *** geological characteristics and storage spaces of these reservoir units are described,and their identification markers in conventional and imaging log curves are *** Archaeozoic metamorphic buried hills can be vertically classified into two primary reservoir units:weathering crust and inner buried *** weathering crust contains four secondary units,i.e.,the clay zone,weathered glutenite zone,leached zone,disaggregation zone;and the interiors contain two secondary units,i.e.,interior fracture zone and tight *** particular,the inner fracture zone was further divided into cataclasite belts and dense-fracture *** is proposed that the favorable reservoirs of exposed Archaeozoic metamorphic buried hills are mainly developed in four parts including weathered glutenite zone,leached zone,disintegration zone superposed with the cataclasite belt and the cataclasite belt of inner fracture zone,and are controlled by both weathering and tectonic *** reservoirs in covered Archaeozoic metamorphic buried hills are mainly developed in the weathering crust superposed with the cataclasite belts and the cataclasite belts of inner fracture zone,and are mainly controlled by tectonic actions.

关键词： Bohai Bay Basin bozhong sag Archaeozoic metamorphic buried hills reservoir units logging identification

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Major controlling factors and hydrocarbon accumulation models of large-scale lithologic reservoirs in shallow strata around the bozhong sag,Bohai Bay Basin,China

引用

Petroleum Exploration and Development 2022年第4期49卷 758-769页

作者： ZHOU Xinhuai WANG Deying YU Haibo YANG Haifeng LI Long Hainan Branch of CNOOC Ltd Haikou 570100China Tianjin Branch of CNOOC Ltd Tianjin 300459China

Based on the practice of oil and gas exploration and the analysis of shallow lithologic reservoirs,combined with the allocation relationship and enrichment law of oil and gas accumulation factors,main controlling factors and models of hydrocarbon accumulation of large lithologic reservoirs in shallow strata around the bozhong sag are summarized,and favorable exploration areas are *** coupling of the four factors of“ridge-fault-sand-zone”is crucial for the hydrocarbon enrichment in the shallow lithologic *** convergence intensity of deep convergence ridges is the basis for shallow oil and gas enrichment,the activity intensity of large fault cutting ridges and the thickness of cap rocks control the vertical migration ability of oil and gas,the coupling degree of large sand bodies and fault cutting ridges control large-scale oil and gas filling,the fault sealing ability of structural stress concentration zones affects the enrichment degree of lithologic oil and gas *** enrichment models including uplift convergence type,steep slope sand convergence type and depression uplift convergence type are established through the case study of lithologic reservoirs in shallow strata around the bozhong sag.

关键词： shallow lithologic reservoir main controlling factors convergence ridge accumulation model bozhong sag Bohai Bay Basin

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Origin of condensate oil and natural gas in bozhong 19-6 gas field,Bohai Bay Basin

引用

Energy Geoscience 2024年第1期5卷 54-62页

作者： Jianyong Xu Wei Li CNOOC Research Institute Co.Ltd. Beijing100028China

The discovery of the bozhong 19-6 gas field has opened a new frontier for deep gas exploration in the Bohai Bay Basin,with a great potential for further gas ***,poor understanding of oil and gas origin has been limiting the exploration progress in this *** clarify the origin of condensate oil and gas in bozhong 19-6 gas field,this study adequately utilized the organic geochemical analysis data to investigate the composition and geochemical characteristics of condensate oil and natural gas,and analyzed the relationship between condensate oil and the three sets of source rocks in the nearby *** show that the lighter components dominate the condensate oil,with a forward type *** parent material of crude oil was primarily deposited in a shallow,clay-rich,low-salinity,weakly reducing aquatic *** condensate and natural gas have similar parent source characteristics and maturity,with Ro ranging from 1.4%to 1.6%.Both are products of high maturity stage,indicating that they are hydrocarbon compounds produced by the same group of source rocks in the same ***-sources correlation shows that condensate oil and gas mainly originate from the source rocks of the third member of Shahejie Formation in the nearby subsags of the bozhong 19-6 structural belt.

关键词： bozhong sag Natural gas Condensate oil Light hydrocarbon Gas-source correlation Oil-source correlation

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：