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Structural Characteristics and its Significances on Hydrocarbon Accumulation in the Yunkai Low Uplift,Pearl River Mouth Basin

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Acta Geologica Sinica(English Edition) 2021年第1期95卷 21-29页

作者： YU Yixin zhang Tianlong zhang zhongtao zhang Gongcheng ZENG Jianhui YANG Haizhang ZHAO Zhao LIANG Weiwei State Key Laboratory of Petroleum Resources and Prospecting China University of PetroleumBeijing 102249China College of Geosciences China University of PetroleumBeijing 102249China Research Institute Shaanxi Yanchang Petroleum(Group)Co.Ltd.Xi'an 710075China CNOOC China Limited Shenzhen BranchShenzhen 518054China CNOOC Research Institute Co. Ltd.Beijing 100028China

The Yunkai low uplift with low exploration degree is close to the Baiyun sag,and has hydrocarbon exploration potential in the deepwater area of the Pearl River Mouth *** on seismic and drilling data,balanced profiles and growth strata,this paper mainly discusses geological structures and formation processes of the Yunkai low uplift,and also analyzes the characteristics of fault system and their influence on hydrocarbon migration and *** EWtrending basement faults divide the Yunkai low uplift into two parts,*** southern sector and the northern *** northern sector is a relatively wide and gentle uplift,while the southern sector is composed of two secondary half-grabens with faulting in the south and overlapping in the *** Yunkai low uplift experienced three major formation stages,including the rapid uplifting stage during the deposition period of the Eocene Wenchang Formation,the slow uplifting stage during the deposition period of the Late Eocene-Middle Miocene Enping-Hanjiang formations,and the whole burial stage from the Middle Miocene to *** extensional faults in the Yunkai low uplift and its adjacent areas strike mainly along the NW,NWW and near-EW ***,the strikes of faults present a clockwise rotation from the deep to the shallow *** to effects of faults on hydrocarbon accumulation the faults in the Yunkai low uplift and its adjacent areas can be divided into trap-controlled faults and source-controlled *** trap-controlled faults control trap development and can effectively seal oil and *** source-controlled faults connect directly source rocks and reservoirs,which are highly active during the rifting stage and weakly active since the *** activity features of the source-controlled faults is beneficial to migration of the early crude oil from the Baiyun sag to the high part of the Yunkai low uplift,but is not good for migration of the late natural *** the Yunkai low upli

关键词： fault activity hydrocarbon accumulation Yunkai low Pearl River Mouth Basin

High-resolution sequence architecture and depositional evolution of the Quaternary in the northeastern shelf margin of the South China Sea

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Acta Oceanologica Sinica 2019年第5期38卷 86-98页

作者： Hanyao Liu Changsong Lin zhongtao zhang Bo zhang Jing Jiang Hongxun Tian Huan Liu School of Ocean Sciences China University of Geosciences Shenzhen Branch of CNOOC Ltd.

The northeastern shelf margin of the South China Sea(SCS) is characterized by the development of large scale foresets complexes since Quaternary. Based on integral analysis of the seismic, well logging and paleontological data, successions since ～3.0 Ma can be defined as one composite sequence, consist of a set of regional transgressive to regressive sequences. They can be further divided into six 3 rd order sequences(SQ0–SQ5) based on the Exxon sequence stratigraphic model. Since ～1.6 Ma, five sets of deltaic systems characterized by development of wedge-shaped foresets complexes or clinoforms had been identified. High-resolution seismic data and the thick foresets allowed further divided of sub-depositional sequences(4 th order) of regression to transgression, which is basically consistent with published stacked benthic foram O-isotope records. Depositional systems identified in the study area include deltaic deposits(inner-shelf deltas and shelf-edge deltas), incised valleys, and slope slumping massive deposits. Since ～1.6 Ma, clinoforms prograded from the southern Panyu Lower Uplift toward the northern Baiyun Depression, shelf slope break migrated seaward, whereas the shelf edge of SQ0 migrated landward. The development of incised valleys in the continental shelf increased upward,especially intensive on the SB3 and SB2. The slumping massive deposits increased abruptly since SB2, which corresponds to the development of incised valleys. The evolution of depositional systems of continental slope mainly controlled by the combined influence of sea level changes, tectonic movements, sediment supply and climate changes. Since ～3.0 Ma, relative sea level of the northern SCS had been experienced transgression(～3.0 Ma BP) to regression(～1.6 Ma BP). The regional regression and maximum transgressions of the composite sequences were apparently enhanced by uplift or subsidence related to tectono-thermal events. In addition,climatic variations including monsoon intensification

关键词： sequence architecture depositional systems continental slope Quaternary Zhujiang(Pearl)River Mouth Basin

Influences of Tibetan Plateau uplift on provenance evolution of the paleo-Pearl River

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Chinese Journal Of Geochemistry 2015年第2期34卷 208-218页

作者： Ye Yu Changmin zhang Shaohua Li Rui Zhu Jiangyan Liu Chenggang Qin zhongtao zhang Hunan Provincial Key Laboratory of Shale Gas Resource Utilization Hunan University of Science and Technology MOE Key Laboratory of Exploration Technologies for Oil and Gas Resource Yangtze University Shenzhen Branch of China National Offshore Oil Corporation

A comparative analysis of the geochemical characteristics of sediments from the Oligocene Zhuhai Formation(32-23.8 Ma),the Miocene Zhujiang Formation(23.8-16.5 Ma),and the Hanjiang Formation(16.5—10.5 Ma) and a comprehensive analysis of the geochemical characteristics of rocks surrounding the paleo-Pearl River drainage contribute to understanding the influences of the Tibetan Plateau uplift on provenance evolution of the paleo-Pearl *** results show that the geochemical characteristics of sediments from the Oligocene Zhuhai Formation are very different from the geochemical characteristics of sediments from the Miocene Zhujiang and Hanjiang *** ∑ rare earth elements(REE) of mudstone is relatively high in the Zhuhai Formation,204.07-293.88 ppm(average 240.46 ppm),and low in the Zhujiang and Hanjiang Formations,181.32-236.73 ppm(average 203.83 ppm) and 166.84-236.65 ppm(average199.04 ppm),*** chemical index of alteration(CIA) for these samples has a similar trend to the∑ REE:the CIA of the Zhuhai Formation is relatively high and the CIA of the Zhujiang and Hanjiang Formations is relatively *** uplift of the Tibetan Plateau is crucial to the westward expansion of the paleo-Pearl River drainage.

关键词：青藏高原隆升珠江源岩石地球化学特征演变珠江流域稀土元素 PPM 珠海组

Application of fluid modulus inversion to complex lithology reservoirs in deep-water areas

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Energy Geoscience 2024年第1期5卷 153-161页

作者： Zhaoming Chen Huaxing Lyu zhongtao zhang Yanhui Zhu Baojun Liu CNOOC Deepwater Development Limited ShenzhenGuangdong518054China

It has been a challenge to distinguish between seismic anomalies caused by complex lithology and hydrocarbon reservoirs using conventional fluid identification techniques,leading to difficulties in accurately predicting hydrocarbon-bearing properties and determining oil-water contacts in *** this study,we built a petrophysical model tailored to the deep-water area of the Baiyun Sag in the eastern South China Sea based on seismic data and explored the feasibility of the tri-parameter direct inversion method in the fluid identification of complex lithology reservoirs,offering a more precise alternative to conventional *** research found that the fluid modulus can successfully eliminate seismic amplitude anomalies caused by lithological ***,the seismic databased direct inversion for fluid modulus can remove the cumulative errors caused by indirect inversion and the influence of *** discovered that traditional methods using seismic amplitude anomalies were ineffective in detecting fluids,determining gas-water contacts,or delineating high-quality ***,the fluid factor Kf,derived from solid-liquid decoupling,proved to be sensitive to the identification of hydrocarbon-bearing properties,distinguishing between high-quality and poor-quality gas *** findings confirm the value of the fluid modulus in fluid identification and demonstrate that the tri-parameter direct inversion method can significantly enhance hydrocarbon exploration in deep-water areas,reducing associated risks.

关键词： Fluid identification Seismic fluid factor Solid-liquid decoupling Deep-water area Complex lithology reservoir

Petroleum Migration Characteristics in the Northeastern Part of the Baiyun Depression,Pearl River Mouth Basin,South China Sea

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Acta Geologica Sinica(English Edition) 2021年第1期95卷 208-231页

作者： ZENG Jianhui WANG Chen GUO Shuai YU Yixin zhang zhongtao YANG Haizhang ZHAO Zhao SUN Rui State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum(Beijing)Beijing 102249China College of Geosciences China University of Petroleum(Beijing)Beijing 102249China State Key Laboratory of Continental Dynamics Department of GeologyNorthwest UniversityXi'an 710069China CNOOC Research Institute Co. Ltd.Beijing 100028China Shenzhen Branch of China National Offshore Oil Corporation Ltd. ShenzhenGuangdong 518054China

This paper investigates the origin and migration characteristics of petroleum in the northeastern part of the Baiyun Depression,Pearl River Mouth Basin(PRMB).The discovered petroleum in the study area is mainly located in the Lower Zhujiang Member(N_(1)z^(2))and mainly originated from the Enping Formation source rocks in the eastern *** faults(vertical migration)and N_(1)z^(2)sandstones(lateral migration)acted as the petroleum migration *** fault activities in the Dongsha event controlled the episodic petroleum *** in the fault zones provided effective conduits,and overpressure was the driving *** vertical migration could not cross the fault zones *** petroleum injection areas in the carrier beds were the contact zones of petroleum-migration faults and carrier *** lateral migration was steady-state migration,and buoyancy was the driving *** migration pathways in the carrier beds were controlled by the structural *** petroleum migration in the study area could be divided into two parts:vertical migration along the fractures in the fault zones and lateral migration through preferential petroleum migration pathways(PPMPs)in the carrier *** petroleum migration behaviors,including migrating direction,driving force,and migration pattern,in the faults and sandstone carrier beds were quite *** study provides a typical example for comprehending secondary migration processes and has great importance for determining future exploration targets in the deep-water area of the PRMB.

关键词： secondary petroleum migration episodic petroleum migration preferential petroleum migration pathways(PPMPs) Baiyun Depression Pearl River Mouth Basin

Burden of colorectal cancer in China, 1990-2017: Findings from the Global Burden of Disease Study 2017

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Chinese Journal of Cancer Research 2019年第3期31卷 489-498页

作者： Jie Yin Zhigang Bai Jun zhang Zhi Zheng Hongwei Yao Pengpeng Ye Jun Li Xin Gao zhongtao zhang Department of General Surgery Beijing Friendship HospitalCapital Medical UniversityBeijing Key Laboratory of Cancer Invasion and Metastasis Research & National Clinical Research Center for Digestive DiseasesBeijing 100050China National Center for Chronic and Noncommunicable Disease Control and Prevention (NCNCD) Chinese Center for Disease Control and Prevention (CDC)Beijing 100050China

Objective: Our goal is to analyze the trend of colorectal cancer(CRC) regarding the death, incidence and prevalence rates over time, and to provide epidemiological knowledge basis for health policy revision by comparing data about fatal outcomes of CRC in 2017 to those data in 1990, which was extracted from the Global Burden of Disease(GBD).Methods: The time trend and changes of CRC burden from 1990 to 2017 were measured by using the methods and results from the Institute for Health Metrics and Evaluation(IHME) GBD 2017, based on the rates of death,incidence and ***: The death rate of CRC is 13.24/100,000, accounting for 1.79% of total deaths in China in 2017. In1990, CRC ranked 21 st in all causes of death in China compared to its 11 th ranking in 2017. The death, incidence and prevalence rate of CRC were standardized by the age scale of the global population in 2010, the change of standardized death rate of CRC was not significant, from 9.33/100,000 in 1990 to 10.10/100,000 in 2017. The standardized incidence rate of CRC significantly increased from 12.18/100,000 in 1990 to 22.42/100,000 in *** standardized prevalence rate of CRC significantly increased from 44.55/100,000 in 1990 to 118.40/100,000 in2017. The trend of the prevalence rate in both genders grow higher in 2017 compared to the 1990, resulting in141.6%, 209.8% and 189.0% for the studied three age groups(15-49, 50-69 and 70+ years old), respectively. The death rate increased in the age groups of 50-69 and 70+ years in both genders(8.6% and 31.0% respectively), in contrast to a decrease of death rate in the age group of 15-49 years old(-10.8%).Conclusions: China experienced a stunning increase in terms of incidence and prevalence rate of CRC from1990 to 2017. To decrease the burden of CRC, prevention and management of known risk factors should be promoted through national polices.

关键词： Colorectal cancer death incidence prevalence epidemiology

MicroRNAs are implicated in the initiation and progression of gastric cancer

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Chinese Medical Journal 2014年第3期127卷 554-559页

作者： Song Jianning Bai Zhigang zhang zhongtao Department of General Surgery Beijing Friendship Hospital Capital Medical University Beijing 100050 China

Objective Gastric cancer is a genetically heterogeneous disease that progresses via different *** （miRNA） can regulate oncogene expression at the post-translational *** this review,we summarize the most commonly altered miRNAs and their possible roles in cancer initiation and progression in gastric *** sources Most articles were identified by searching PubMed online resources using the key terms of microRNA and gastric *** selection Mainly original milestone articles and critical reviews written by major pioneer investigators in the field were selected,and the 69 most important articles were cited *** A set of miRNAs are consistently deregulated in gastric cancer,although there is no clear miRNA expression profiles,such as miR-21 and miR-17 （～92 clusters）.These deregulated miRNAs play important roles in promoting cell proliferation,tumor metastasis,and chemotherapeutic resistance in gastric cancer by targeting different *** relevance of these deregulated miRNAs is proved to be associated with TNM stages,metastasis,and prognosis of gastric cancer *** addition,circulating miRNAs are promising noninvasive biomarkers for gastric *** miRNAs have produced a novel paradigm in research in gastric *** small molecules play macroroles in gastric cancer initiation and *** results will help us improve management of gastric cancer in future.

关键词： microRNA gastric cancer

Multielements of medical caring in gastric cancer

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Chinese Medical Journal 2014年第3期127卷 401-402页

作者： Meng Hua zhang zhongtao Department of Surgery Beijing Friendship Hospital Capital Medical University Beijing 100050 China

With recent advances in both knowledge and available technology,therapeutic strategies for gastric cancer have become diversified.1 Surgical instruments and devices have improved,and chemotherapeutic drugs and targeted agents have become more advanced as we gain a more comprehensive understanding of gastric cancer *** epidemiology of gastric cancer has also been changing due to mass screening programs and improved survival rates.2 However,these collective achievements have not reached the point of making patients *** relationship between doctors and patients is a very sensitive and hot topic in Chinese medical *** is like complex hair knots that can not easily be smoothed without suffering and ***：gastric neoplasm; multidisciplinary treatment

关键词： gastric neoplasm multidisciplinary treatment

Middle Ordovician Bioturbation Structures from Southeastern Margin of Ordos Basin and Their Environmentary Interpretation

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Journal of China University of Geosciences 2002年第4期13卷 321-329页

作者： Fei Anwei zhang zhongtao Resources and Information Institute, University of Petroleum, Beijing 102249 Resources and Information Institute University of Petroleum Beijing 102249

Trace fossils were discovered in the Middle Ordovician Badou Member ofFengfeng Formation and the Member 1 of Jinsushan Formation in Mt. Jinsu of the Fuping region whichlies at the southeastern margin of the Ordos basin. The rocks of the fore-mentioned parts contain aconsiderable amount of bioturbation structures, in which ichnogenus and ichnospecies can not beidentified, and abundant stromatolites. The distributions and characteristics of the bioturbationstructures are analyzed and summarized in this paper. The paleoenvironments of related formationsand members were interpreted in the method of semiquantitative analysis of bioturbation structureswith researches on stromatolites and sedi-mentology. It is suggested that Fuping zone, located inthe southeastern margin of the Ordos basin, was a carbonate platform where stromatolite-developingtidal flat and low-energy subtidal open platform environments dominated. Also that this zoneexperienced three paleogeographic evolutions from tidal flat to low-energy subtidal open platformenvironments, that is, three larger-scale eustatisms occurred during the sedimentary period ofMiddle Ordovician Badou Member of Fengfeng Formation to the Member 1 of Jinsushan Formation.

关键词： bioturbation structure bioturbation index paleoenvironment middleordovician fuping region ordos basin