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| 1 | Characteristics and significance of the penecontemporaneous karst in lacustrine carbonate, Da'anzhai Member, Lower Jurassic, Beibei area, eastern Sichuan Basin显示文摘There are few reports about the penecontemporaneous karst of the lacustrine carbonate of Da'anzhai Member which developed on the top of Lower Jurassic Ziliujing Formation,eastern Sichuan Basin.Based on the analysis of the macroscopic and microscopic characteristics of Heping Reservoir section in Beibei area,It is discovered that the penecontemporaneous karst in the lacustrine carbonate,Da'anzhai Member,and its characters as follows:(1)The dissolved fractures and karrens are common,which have been filled with vadose silts,bioclasts,terrigenous quartzes,crystal and intergrown calcites;(2)The penecontemporaneous karstification mainly occurs in the micrites and shell limestones of the middle and upper part of the shallowing-upward sequence,and the desiccation cracks occur in some shallowing-upward sequences;(3)Three meteoric-water diagenetic lenses are identified in this section.By further study we also find the factures,stylolite and burial dissolution pores occur along the karst system(tubes,conduits and caves of the karst).And the asphalt not only fills the stylolites and fractures,but also is mixed with the vadose silt in the karst system,although the pore space formed by penecontemporaneous karstification is filled with vadose material and cements.Therefore it is concluded that the development and modification of the tight lacustrine carbonate reservoir of Da'anzhai Member,to some extent,are relevant with the penecontemporaneous karstification,and the penecontemporaneous karst reservoir may develop in the buried Da'anzhai carbonate of the basin. | Chengpeng Su Xiucheng Tan Kailan Shi Juan Zou Feifan Lu Sicong Luo Hao Tang Xinyu Zhang | 2017 | Petroleum2017，3，3： | 5 |
| 2 | Ground-penetrating radar study of beach-ridge deposits in Huangqihai Lake, North China: the imprint of washover processes显示文摘在湖的盆决定沙滩山脉的起源能经常是有问题的。为胡昂基海·莱克的北方岸上的沙滩山脉的形成负责的沉积过程被使用渗透雷达(GPR ) 的地面调查。400 MHz GPR 天线被用来完成 0.04-0.08 m 的高垂直的分辨率。雷达地层学然后用地震地层学的原则被决定。雷达外形(RF ) 被分析思考,以及思考结束模式的内部配置和连续性决定。识别 RF 掉进三个组(倾向,水平、不规则) 。使倾向的组由显示使倾向了的 RF 组成思考。水平组由 RF 组成展出主要水平的思考。在不规则的组,思考典型地是弱的。有思考与的 RF 轻轻地,向陆地,在岸正常侧面的剧降作为 washover 表存款被解释。有陡峭地向陆地蘸、使 washover 脑叶成鳞状的思考的 RF 作为被解释。当冲洗没能进入水的重要身体,沉积完全在相对弄平的地形学上发生时, Washover 表发展。当冲洗进入地形学向陆地陡峭地在蘸的一个区域时, Washover 脑叶开发发生,并且沉积发生在 washover 表或以前的 washover 脑叶的表面上。当从垂直地并且旁边地叠的 washover 表和 washover 脑叶完全被形成,沙滩山脉存款被解释。他们被波浪主导的过程和沿岸的水流补充的第二等的冲洗过程形成。 | Xin SHAN Xinghe YU Peter D. CLIFT Chengpeng TAN Shunli LI Zhixing WANG Dongxu SU | 2016 | Frontiers of Earth Science2016，10，1： | 0 |
| 3 | Development of Integrated Computational Materials Engineering(ICME)Model for Mg Alloy Design and Process Optimization显示文摘Integrated computational materials engineering(ICME)has emerged to be one of the most powerful materials genome engineering(MGE)approaches in designing new materials and manufacturing processes in recent years.It has successfully deployed many new products for the electronic,automotive,and aerospace industries.This paper reviews the current status of research on first principles in the design of high-strength Mg alloys,discusses the application of crystal plasticity finite element models to the microscale slip,twinning,microstructure morphology,texture evolution,and macroscopic forming of Mg alloys,and introduces the research progress of crystal plasticity finite element models and phase field models,meta cellular automata models and first principles coupled models respectively,around the need for multi-scale coupled simulations of Mg alloys.The key technology obstacles of integrating the first principles,crystal plasticity finite element,and microstructure models for Mg alloys have been solved.This paper can provide a reference for the design of new Mg alloy compositions and the development of high-performance Mg alloys. | Hui Su Zhifei Yan Yingchun Tian Chengpeng Xue Shuo Wang Guangyuan Tian Xinghai Yang Quan Li Xuelong Wu Zhongyao Li Junsheng Wang | 2023 | Journal of Beijing Institute of Technology2023，32，4： | 0 |
| 4 | The sedimentary facies characteristics and lithofacies palaeogeography during Middle-Late Cambrian,Sichuan Basin and adjacent area显示文摘Combined with the regional strata filling characteristics of Middle-Upper Cambrian,the present paper conducts a systematic research on sedimentary facies in the basin and its peripheral area by utilizing 164 field outcrops and drilling and coring data.Further,the method of“multi-factor comprehensive synthesis based on single-factor analysis”was employed to investigate the sedimentary facies and palaeogeography of the study area and establish the sedimentary facies model.Stratigraphic reveals that the study area represents the pattern of thin-northwest and thicksoutheast by stretching northeast-southwest.Within the present basin,the pattern of“one thin and two thick”predominates,while outside the basin“four thin and three thick”filling feature was found.Sedimentary facies shows that the study area was featured by rimmed carbonate platform.Specifically,carbonate platform,slope and northeastern corner Qinling paleooceanic Basin and southeastern corner Jiangnan Bain was identified from the west to the east.The carbonate platform contains restricted platform,evaporation-restricted platform,semi-restricted platform and the platform margin.Single factor analysis and lithofacies palaeogeographic characteristics manifests that during Middle-Late Cambrian,the western Old land evolved into peneplain stage,and that the eastern and southwestern sub-sags remained connected to the open-sea to some extent.At the time,the shllow seawater circulation was relatively restricted,while the ancient seabed tended to be flat and evaporation characteristics significantly diminished.Secondary sea-level fluctuation intensively influenced the development of scaled grain beach.It is suggested that tide marginal beach,intraplatform shoal subfacies zone,along with Shiqian-SangZhi in southeast and Zhenba-Xinshan in northeast platform-margin beach subfacies zone to be preferable targets for the favorable reservoir facies zone and potential oil and gas reservoir area. | Feifan Lu Xiucheng Tan Teng Ma Ling Li Aiwei Zhao Chengpeng Su Jingqing Wu Haitao Hong | 2017 | Petroleum2017，3，2： | 0 |
| 5 | Reservoir characteristics of the first member of Middle Permian Maokou Formation in Sichuan Basin and its periphery and inspirations to petroleum exploration,SW China显示文摘Based on a large number of field outcrops and cores taken systematically from boreholes,by microscopic observa-tion,physical property analysis,mineralogy analysis,geochemical analysis etc.,reservoir characteristics of the first member of Middle Permian Maokou Formation in Sichuan Basin('Mao 1 Me mber'for short)are analyzed.(1)Rhythmic limestone-marl reservoirs of this member mostly exist in marl layers are a set of tight carbonate fracture-pore type reservoir with low porosity and low permeability,with multiple types of storage space,mainly secondary dissolution pores and fissures of clay minerals.(2)The clay minerals are mainly diagenetic clay minerals,such as sepiolite,talc and their intermediate products,aliettite,with hardly terrigenous clay minerals,and the reservoir in different regions have significant differences in the types of clay minerals.(3)The formation of high quality tight carbonate reservoir with limestone-marl interbeds is related to the differential diagene-sis in the early seawater burial stage and the exposure karstification in the early diagenetic stage.It is inferred through th e study that the inner ramp of southwestern Sichuan Basin is more likely to have sweet spots with high production,while the outer ramp in eastern Sichuan Basin is more likely to have large scale contiguous reservoir with low production. | SU Chengpeng LI Rong SHI Guoshan JIA Huofu SONG Xiaobo | 2021 | Petroleum Exploration and Development2021，48，6： | 0 |
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