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Architecture of volcanic sequence and its structural control of Yingcheng Formation in Songliao Basin

Journal of Central South University 2014年第5期21卷 2026-2040页

作者：程日辉王腾飞沈艳杰任延广 College of Earth Sciences Jilin University research institute of exploration and development Daqing Oilfield Limited Company

Yingcheng Formation is a set of volcanic strata composed of lava rocks,volcanic clastic rocks and sedimentary rocks,filled in some fault depressions in Songliao Basin,early *** study about litho-facies succession of Yingcheng Formation in the outcropped area of the southeast margin and in Xujiaweizi fault depression and its distribution based on analysis of seismic data,shows that the sequence of volcanic strata is quite different from the clastic sedimentary *** study the architecture of volcanic sequence and its structural control of Yingcheng Formation in Songliao Basin,in this work,dividing of the volcanic sequence and dating of the sequence boundaries were finished firstly,then displacement and displacement rate of faults were *** results show that,sample ages of top of the first member,the seconde member,and the third member are 127 Ma,115 Ma,110.7 Ma,respectively and sample age of the bottom of the third member is 114.7 *** maximum displacement and displacement rate of the fault 1 are 3 km and 300 m/Ma,respectively,and those of the fault 2 are 3 km and 1000 m/*** suggest that,the cooling unit of lava rock or pyroclastic rock is a basic genetic stratigraphic unit in volcanic sequence *** units can construct a parasequence reflecting a volcanic eruption stage.A sequence was superimposed by some parasequences,responding to a volcanic active *** are three types of volcanic sequences in Yingcheng Formation: type of explosion,type of effusion and type of mixed *** surface of the volcanic sequence,an unconformity surface widely spread and traced in seismic profiles,is a base for analysis of volcanic *** development of volcanic sequence was controlled by faulting,and the curves of fault displacement(rate)can reflect this *** preservation of volcanic sequence was controlled by the type of volcanic structure and the regional subsidence,also different from that of the se

关键词： volcanic sequence stratigraphy Yingcheng Formation cooling unit structural subsidence

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SYMMETRIC VORTICAL STRUCTURE AND ITS TOPOLOGICAL STABILITY

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Journal of Hydrodynamics 2005年第5期17卷 552-557页

作者： WANG Gang LIANG Xin-gang GANG Ming-li Department of Engineering Mechanics Tsinghua University Beijing 100084 China exploration and development research institute PetroChina Daqing Oilfield Company Ltd. Daqing 163712 China

Using time dependent compressible laminar Navier-Stokes equations with a finite volume method incorporating a third-order-accurate discretization scheme, the flow structures around a slender at certain incidences are numerical simulated and typical crossflow patterns are presented. At incidence 10°, these vortical configurations are different at dissimilar axial locations though they are symmetric. At 35°, the symmetric vortical structures still maintain over the slender, yet their interaction at afterbody is intense than that at the forehody since the two vortices have fully developed downstream. The unstable topological structure of trajectory of saddle-to-saddle points and multiple limit cycle are further discussed in topological stability theory. These structures easily produce bifurcation with perturbation. The results support the view of hydrodynamic instability of vortices flow field.

关键词： symmetric vortices slender body flow pattern topological stability flow mechanism

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A Study of the Migration and Accumulation Efficiency and the Genesis of Hydrocarbon Natural Gas in the Xujiaweizi Fault Depression

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Acta Geologica Sinica(English Edition) 2008年第3期82卷 629-635页

作者： LI Jijun LU Shuangfang XUE Haitao HUO Qiuli XU Qingxia College of Earth Sciences Daqing Petroleum Institute Daqing Heilongjiang 163318 exploration and development research institute of the daqing oilfield company ltd. Daqing Heilongjiang 163712

In order to investigate the migration and accumulation efficiency of hydrocarbon natural gas in the Xujiaweizi fault depression, and to provide new evidence for the classification of its genesis, a source rock pyrolysis experiment in a closed system was designed and carried out. Based on this, kinetic models for describing gas generation from organic matter and carbon isotope fractionation during this process were established, calibrated and then extrapolated to geologic conditions by combining the thermal history data of the Xushen-1 Well. The results indicate that the coal measures in the Xujiaweizi fault depression are typical ＂high-efficiency gas sources＂, the natural gas generated from them has a high migration and accumulation efficiency, and consequently a large-scale natural gas accumulation occurred in the area. The highly/over matured coal measures in the Xujiaweizi fault depression generate coaliferous gas with a high δ^13C1 value （〉 -20‰） at the late stage, making the carbon isotope composition of organic alkane gases abnormally heavy. In addition, the mixing and dissipation through the caprock of natural gas can result in the negative carbon isotope sequence （δ^13C1 〉δ^13C2 〉δ^13C3 〉δ^13C4） of organic alkane gases, and the dissipation can also lead to the abnormally heavy carbon isotope composition of organic alkane gases. As for the discovery of inorganic nonhydrocarbon gas reservoirs, it can only serve as an accessorial evidence rather than a direct evidence that the hydrocarbon gas is inorganic. As a result, it needs stronger evidence to classify the hydrocarbon natural gas in the Xujiaweizi fault depression as inorganic gas.

关键词： Xujiaweizi fault depression hydrocarbon natural gas migration and accumulation efficiency genesis carbon isotope fractionation kinetics

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SYNDIOSPECIFIC POLYMERIZATION OF STYRENE WITH Ar[O,O/NH]Cp ~*TiCl ACTIVATED WITH MMAO

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Chinese Journal of Polymer Science 2009年第5期27卷 659-665页

作者：陈劼 Haerbin institute of Technology Postdoctoral Station of School of Materials Science and Engineering daqing oilfield company ltd. Exploration and Development of Research Institute

A series of titanium complexes Ar[O,E]Cp~*TiCl(Cp~*=C_5Me_5,Ar=1,2-phenylene,E=NH(1a);Ar=1,2- phenylene,E=O(1b);Ar=2.2'-diphenylene,E=O(1c);Ar=2,2'-dinaphthalene,E=O(1d)) has been prepared by the reaction of corresponding phenol derivatives with Cp~*TiCl_3 in the presence of excessive *** the conditions of low Al/Ti molar ratio(e.g.500) and high reaction temperatures(>70℃),all the titanium complexes display higher catalytic activities towards the syndiospecific polymerization of styrene,in t...

关键词： Ziegler-Natta polymerization Catalysts Syndiotactic Polystyrene.

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Reservoir-forming conditions and key exploration & development techniques for Xushen gas field in Northeast China

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Petroleum research 2019年第2期4卷 125-147页

作者： Fenglan Wang Yongzhuo Wang Xuemin Zhou Changhai Yin Ping Shu Baojun Cao Yingkang Zhu exploration and development research institute Daqing Oilfield Co.Ltd.Daqing163712China

exploration and development of volcanic gas reservoirs is a world-class problem,and less experience can be learned at home and *** study of reservoir-forming conditions of Xushen gas field,four sets of hydrocarbon source rocks,mainly mudstone and coal seam of Shahezi Formation,are identified in this gas field;its cap rocks are mudstone in Member 2 of Denglouku Formation,and Member 1 and Member 2 of Quantou *** simulating reservoir-forming history,four filling periods of the Xushen gas field are determined,and the most favorable exploration targets are crater areas with structural highs,large thickness and good physical *** the basis of diagenetic mechanism study,the criteria of sequence series,lithology identification and reservoir types of gas reservoirs have been established;the volcanic rock bodies have been carefully depicted and the distribution laws of effective reservoirs of gas pools have been figured *** on evaluating reservoir-permeability characteristics of reservoirs,the gas well productivity characteristics(mainly type II,III and IV wells)have been identified,and the optimum design technology for volcanic gas reservoir development has been *** gas reservoirs in all blocks of Xushen gas field are classified into three types:singlebody gas reservoir model,disconnected multi-body gas reservoir model and interconnected multi-body gas reservoir *** technologies,including multi-layer fracturing of vertical well,staged fracturing of open-hole horizontal well and volume fracturing,have been *** to gas well production performance,pressure change,well-controlled reserves and spatial distribution of volcanic bodies,combined with numerical simulation and prediction of gas reservoirs,the evaluation method of residual potential of volcanic gas reservoirs has been *** technologies for effective exploration and development of complex volcanic gas reservoirs have been established and perf

关键词： Xushen gas field Reservoireforming conditions Volcanic rock development Productivity Optimum design

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High-fidelity Wide Frequency Processing Techniques for Seismic Data Acquired by Digital Geophones

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石油地球物理勘探 2012年第A2期47卷 7-19页

作者： Chen Zhide Guan Xin Li Ling Zhang Jing exploration and development research institute of daqing oilfield company Daqing Heilongjiang 163712 China

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Distribution and genesis of the anomalously high porosity zones in the middle-shallow horizons of the northern Songliao Basin

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Petroleum Science 2010年第3期7卷 302-310页

作者： Meng Yuanlin Liang Hongwei Meng Fanjin Wu Heyong Wang Cheng Xiu Hongwen Zhang Anda Li Yaguang Guo Rixin School of Earth Science Northeast Petroleum University Daqing 163318 China exploration and development research institute Daqing Oilfield Company Ltd. Daqing 163712 China No. 1 Petroleum Production Subcompany Daqing Oilfield Company Ltd. Daqing 163113 China

High-quality reservoirs occur in the middle-shallow horizons of the northern Songliao Basin. The distribution and genesis of their anomalously high porosity zones were studied using measured porosities, examination of ordinary thin sections and blue epoxy resin-impregnated thin sections and by SEM. The results show that there are three anomalously high porosity zones at the depth of 450-900 m, 1,300-1,900 m, 2,050-2,350 m respectively, named zone i, zone ii and zone iii from top to bottom. Horizontally, zone i and zone ii are distributed all over the basin except in the Southeastern Uplift, while zone iii is only distributed in the Central Depression. Zone i was formed by meteoric water leaching as well as organic acid dissolution. Zones ii and iii were dominantly formed by organic acid dissolution. Additionally, clay mineral transformation generating H＋ and hydrocarbon emplacement retarding the cementation of sandstones are also important for the formation of zones ii and iii.

关键词： Anomalously high porosity zone diagenetic fluid organic acid diagenesis secondaryporosity hydrocarbon emplacement sedimentary facies Songliao Basin

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Provenance System Analysis of the Nantun Formation of the Huhehu Sag in Hailar Basin

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Acta Geologica Sinica(English Edition) 2012年第1期86卷 189-198页

作者： LI Junhui MENG Qi'an LU Shuangfang ZHU Defeng WU Haibo LIU He ZHANG Dazhi exploration and development research institute Daqing Oilfield Company LimitedDaqing 163712China Northeast Petroleum University College of Earth ScienceDaqing 163318China

Huhehu Sag is a new battlefield for the future oil and gas exploration in the Hailar Basin. At present, exploration of this area stays at a low level and the understanding of the provenance system of the Nantun Formation is comparatively weak. So, to carry out the detailed depiction of the provenance system in the study area is significant for the sedimentary system reconstruction, for the prediction of reservoir distribution and favorable areas. Based on comprehensive analysis of paleogeomorphy, light-heavy mineral and seismic reflection features, sandstone thickness and sandstone percentage, this paper analyzes in detail the provenance system of the Nantun Formation in Huhehu Sag from various angles and levels. It shows that provenances of the Huhehu Sag mainly originated from the eastern Xilinbeier Salient and western Bayan Mountain Uplift. The provenances surrounding the lake basin converged to the center of the basin, among which, the steep slope belt and the gentle slope belt are the main provenances, and the southern uplift is a secondary one. The distribution framework of the provenance fundamentally determines the distribution rules of the depositional system and its sand body developing during the Nantun period.

关键词： Huhehu Sag Nantun Formation provenance analysis sedimentary system

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Characteristics,Types,and Prospects of Geological Sweet Sections in Giant Continental Shale Oil Provinces in China

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Journal of Earth Science 2022年第5期33卷 1260-1277页

作者： Zhi Yang Caineng Zou Songtao Wu Songqi Pan Xiaoni Wang Haitao Liu Wenqi Jiang Jiarui Li Qiyan Li Xiaobing Niu Guohui Li Zhenxing Tang Xuguang Guo Dong Huang Qizhao Wei research institute of Petroleum exploration&development PetroChinaBeijing 100083China School of Earth and Space Sciences Peking UniversityBeijing100871 School of Energy China University of GeosciencesBeijing 100083China research institute of exploration and development PetroChina Changqing Oilfield CompanyXi'an 710021China research institute of exploration and development PetroChina Daqing Oilfield CompanyDaqing 163712China research institute of exploration and development PetroChina Jilin Oilfield CompanySongyuan 138000China research institute of exploration and development PetroChina Xinjiang Oilfield CompanyKelamay 834000China research institute of exploration and development PetroChina Southwest Oil&Gasfield CompanyChengdu 610051China

“Sweet sections”in giant shale oil provinces are preferential fields that primarily support China to increase the reserves and production of continental shale *** on the study of the geological conditions of shale oil in the continental basins in China,it was found that the shale stratum in major oil generation windows generally has higher degrees of oil and gas accumulation,and mostly contains *** generation and reservoir capacities are the two key parameters for evaluating and optimizing favorable shale oil *** evaluation index(volume of shale stratum multiplied by total organic carbon(TOC)multiplied by total porosity)for the giant continental shale oil provinces is also *** is optimized that the Upper Triassic Chang 7 Member in the southcentral Ordos Basin,Lower Cretaceous Qing 1 Member in the Gulong-Changling Sag in the Songliao Basin,Middle-Lower Permian in the Junggar Basin,Da’anzhai Member of the Ziliujing Formation of Lower Jurassic in the central and northern Sichuan Basin,and Paleogene oil-rich sag in the Bohai Bay Basin are the five giant continental shale oil *** word“geological sweet sections”in continental shale oil provinces of China refers to favorable shale intervals which are relatively rich in oil,with superior physical properties,and more easily modified and developed commercially under applicable economic and technological *** evaluation,there are mainly two types of“geological sweet sections”of giant continental shale oil developed onshore in *** type of“geological sweet sections”is generally mudstone with optimal physical properties or a thin tight reservoir,to which the shale oil migrates a short *** are medium-to-high-mature zones with a thin sandy shale stratum in the Chang 7 Member in the Ordos Basin,mixed shale stratum in the mediummature Lucaogou Formation in the Jimsar Sag,and multi-layered mixed Paleogene shale stratum in the Bohai Bay *** other type of“ge

关键词： continental shale oil shale stratum geological sweet section source rock oil micro-nano pore throats laminae lamination free hydrocarbons shale oil revolution petroleum geology

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A log-based method for fine-scale evaluation of lithofacies and its applications to the Gulong shale in the Songliao Basin,Northeast China

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Energy Geoscience 2024年第3期5卷 189-202页

作者： Weilin Yan Chunyan Wang Shujun Yin Zheng Wen Jiandong Zheng Xiuli Fu Zhou Feng Zhaoqian Zhang Jianhua Zhu exploration and development research institute of daqing oilfield company Limited PetroChinaDaqingHeilongjiang163002China research institute of Petroleum exploration&development PetroChinaBeijing100083China

The Gulong shale demonstrates high clay content and pronounced thin laminations,with limited vertical variability in log curves,complicating lithofacies *** comprehend the distribution and compositional features of lithofacies in the Gulong shale for optimal sweet spot selection and reservoir stimulation,this study introduced a lithofacies classification scheme and a log-based lithofacies evaluation ***,theΔlgR method was utilized for accurately determining the total organic carbon(TOC)content;a multi-mineral model based on element-to-mineral content conversion coefficients was developed to enhance mineral composition prediction accuracy,and the microresistivity curve variations derived from formation micro-image(FMI)log were used to compute lamination density,offering insights into sedimentary *** this method,integrating TOC content,sedimentary structures,and mineral compositions,the Qingshankou Formation is classified into four lithofacies and 12 sublithofacies,displaying 90.6%accuracy compared to core description *** classification results reveal that the northern portion of the study area exhibits more prevalent fissile felsic shales,siltstone interlayers,shell limestones,and ***,the upper section primarily exhibits organic-rich felsic shale and siltstone interlayers,the middle part is characterized by moderate organic quartz-feldspathic shale and siltstone/carbonate interlayers,and the lower section predominantly features organic-rich fissile felsic/clayey felsic *** various sublithofacies in relation to seven petrophysical parameters,oil test production,and fracturing operation conditions indicates that the organic-rich felsic shales in the upper section and the organic-rich/clayey felsic shales in the lower section possess superior physical properties and oil content,contributing to smoother fracturing operation and enhanced production,thus emerging as dominant ***

关键词： Lithofacies division Formation micro-image(FMI)log Lithoscanner logging Fine-scale log-based evaluation Gulong shale

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