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Sequence sedimentary evolution and reservoir distribution in the third and fourth members of Sinian Dengying Formation,Gaomo area,Sichuan Basin,SW China

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Petroleum exploration and Development 2022年第5期49卷 1004-1018页

作者： TAN Lei LIU Hong CHEN Kang NI Hualing ZHOU Gang ZHANG Xuan YAN Wei ZHONG Yuan LYU Wenzheng TAN Xiucheng ZHANG Kun State Key Laboratory of Oil and Gas Reservoir Geology and exploration Southwest Petroleum UniversityChengdu 610500China Sichuan Natural Gas Geology Key Laboratory Southwest Petroleum UniversityChengdu 610500China CNPC Key Laboratory of Carbonate Reservoirs Southwest Petroleum University Division Chengdu 610500China research institute of Petroleum exploration and Development PetroChina Southwest Oilfield CompanyChengdu 610041China Southwest geophysical research institute BGPCNPCChengdu 610213China

Based on comprehensive analysis of cores,thin sections,logging and seismic data,the sequence stratigraphy and sedimentary evolution of the third and fourth members of Sinian Dengying Formation(Deng 3 and Deng 4 members for short)in the Gaomo area of Sichuan Basin were investigated,and the favorable zones for reservoir development in the Deng 3 Member and Deng 4 Member were predicted.(1)Two Type I and one Type II sequence boundaries are identified in the Deng 3 and Deng 4 *** on the identified sequence boundaries,the Deng 3 and Deng 4 members can be divided into two third order sequences SQ3 and SQ4,which are well-developed,isochronal and traceable in this area;the SQ3 thins from west to the east,and the SQ4 thins from northwest to southeast.(2)The sedimentary environment from the depositional period of SQ3 to SQ4 has experienced the evolution from mixed platform to rimmed platform,and the platform rimmed system on the west side is characterized by the development of platform margin microbial mound and grain shoal *** intraplatform area is a restricted platform facies composed of a variety of dolomites,and there are local micro-geomorphic highlands of different scales and scattered intraplatform mounds and shoals.(3)The Deng 4 Member reservoirs,with obvious facies-controlled characteristic,are mainly distributed in the upper part of high-frequency upward shallow cycle and the high-stand systems tract of the third-order sequence vertically,and are more developed in the platform margin belt than in the intraplatform belt,and more developed in the Gaoshiti platform margin belt than in the west Suining platform margin belt on the plane.(4)Three types of favorable reservoir zones of Deng 4 Member have been finely delineated with 3D seismic data;among them,the mound and shoal facies zones developed in the ancient highlands of the intraplatform are the first choice for the next exploration and development of the Deng 4 Member.

关键词： Sinian Dengying Formation rimmed platform sequence stratigraphy sedimentary evolution reservoir favorable exploration zone Gaomo area Sichuan Basin

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An Improved Method of Laser Particle Size Analysis and Its Applications in Identification of Lacustrine Tempestite and Beach Bar：An Example from the Dongying Depression

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Journal of Earth Science 2017年第6期28卷 1145-1152页

作者： Yuanfu Zhang Chenlin Hu Xingmou Wang Min Wang Zaixing Jiang Junjie Li School of Energy Resources China University of Geosciences Beijing 100083 China School of Earth Sciences and Resources China University of Geosciences Beijing 100083 China SINOPEC Shengli geophysical research institute Dongying 257022 China PetroChina research institute of Petroleum exploration and Development Beijing 100083 China The First Oil Production Plant SINOPEC Henan Oilfield Nanyang 473132 China

Grain size analysis is a common method in the study of sedimentology. For the consolidated sedimentary rocks, the traditional methods are rock slice observation and image analysis. In recent years, laser particle size analyzer is used widely in particle size analysis of sedimentary rock. Unlike the pretreatment of loose samples, the rock samples must be crushed, added acid to wipe out cement, and washed. However, in the step of washing, most of the fines component（less than 63 μm） in the suspended state should be inevitably lost. It will significantly affect the accuracy of particle size analysis, especially for siltstone. This paper presents a siltstone sample pretreatment method which core step is washing acid by centrifuge. Compared with traditional decantation method, the results show that the median particle size reduced 33.2 μm on average. Compared with the precipitation method which is commonly used for handling loose samples, the change of solid-liquid separation time is from 12 h to 10 min, while the average reduction of median particle size is about 15 μm. The grain size value corresponded to the cumulative volume of 10%/90% reduced 2.5 μm/20.3 μm on average. The percentage of the clay component less than 2 μm increased 2.88% on average. The fine particle（2–4 μm） and silt component（4–63 μm） increased 1.71% and 5.56% on average. Based on this method, two kinds of similar lacustrine siltstone were analyzed. They are tempestite and beach bar which are difficult to identify in the Lijin sub-depression, Dongying depression, Shengli oilfield, China. The final grain-size probability plot of tempestite is the type of “one saltation component and three suspension components”. The content of suspension components can reach to 80%–90%. The beach bar is the type of “one saltation component and two suspension components”. The content of suspension components can reach to 40%–45%. They both have the characteristics of high slope which means well sorting. But they can be

关键词： siltstone grain size analysis sample pretreatment washing acid centrifuge

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Rules of Formation of Lithostratigraphic Oil and Gas Reservoirs in the Southern Part of Songliao Basin

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China Oil & Gas 2010年第3期17卷 30-35页

作者： Ren Lixin Wu Xiaodong Gao Xia Liu Suzhen Nan Zhengbing MOE Key Laboratory of Petroleum Engineering in China University of Petroleum research institute of Petroleum exploration ＆ Development geophysical exploration research institute of PetroChina HuaBei oilfield Company）

Oil and gas exploration in most areas and major horizons of Songliao Basin have reached a stage of high ***,there are few structural trap reservoirs remaining to be drilled in the basin,and major targets

关键词：松辽盆地南部油气藏形成岩石地层地层油气藏成熟阶段圈闭油藏天然气剩余

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Lithospheric dripping in a soft collision zone:Insights from late Paleozoic magmatism suites of the eastern Central Asian Orogenic Belt

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Geoscience Frontiers 2023年第1期14卷 101-117页

作者： Zheng Ji Wen-Chun Ge M.Santosh Chuan-Biao Wan Yan-Long Zhang Jun-Hui Bi Hao Yang Yu Dong Yan Jing College of Geo-exploration Science and Technology Jilin UniversityChangchun 130026China College of Earth Sciences Jilin UniversityChangchun 130061China School of Earth Science and Resources China University of GeosciencesBeijingBeijing 100083China Department of Earth Sciences University of AdelaideAdelaideSouth Australia 5005Australia exploration and Development research institute Daqing Oilfield Limited CompanyDaqing 163712China Tianjin Center China Geological SurveyTianjin 300170China

The closure of Paleo-Asian Ocean is considered to have occurred along the Solonker Suture in the southernmost segment of the Central Asian Orogenic Belt(CAOB),the largest Phanerozoic accretionary orogen on the *** suture branches to the east to form the northern Hegenshan-Heihe Suture and the southern Solonker-Changchun *** Hegenshan-Heihe Suture is an ideal natural laboratory for studying the post-collisional geodynamic processes operating in a soft collision zone driven by divergent double-sided *** we report results from an integrated study of the petrology,geochronology,geochemistry,and Sr-Nd-Hf isotopic compositions of the Early Carboniferous-Early Permian mag-matic suite in the Hailar Basin of the Xing'an-Erguna *** Early Carboniferous igneous rocks are represented by 356-349 Ma andesitic tuffs,exhibiting typical subduction-related features,such as enrichment in large-ion lithophile elements and depletion in high-field-strength *** features,together with the relatively depleted Sr-Nd-Hf isotopic compositions,constant Nb/Y values,but highly variable Rb/Y and Ba values indicate that these rocks were generated by partial melting of a depleted mantle wedge metasomatized by slab-derived *** Late Carboniferous-Early Permian magmatic suite(317-295 Ma)is characterized by high Sr contents(313-1080 ppm)and low Y contents(5-13 ppm),and these can be subdivided into calc-alkaline adakitic rocks and high-K calc-alkaline adakitic *** calc-alkaline adakitic rocks have higher values of Sr/Y,(Sm/Yb)_(source normalized),and Mg#,and lower values of Y,_(Ybsource normalized),and K_(2)O/Na_(2)O than the high-K calc-alkaline adakitic rocks,which suggests that the former was generated by partial melting of foundered lower continental crust and the latter by partial melting of normal lower continental *** on our new data,in conjunction with those in previous studies,we conclude that the tectonic evolution of the Hegenshan-H

关键词： Soft collision Lithospheric dripping Double-sided subduction Central Asian Orogenic Belt Late Paleozoic

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Review:Progress in SQUID⁃Based geophysical Precision Measurement Technology

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Journal of Harbin institute of Technology(New Series) 2020年第3期27卷 101-115页

作者： Jun Lin Mingchao Wang Jing Zhao Key Laboratory of geophysical exploration Equipment(jilin University) Ministry of EducationChangchun 130026China College of Instrumentation and Electrical Engineering Jilin UniversityChangchun 130026China

Superconducting quantum interference device(SQUID),with the advantages of ultra⁃high sensitivity,low noise,broad frequency bandwidth,and excellent low⁃frequency response,is widely used in several geophysical methods,such as vector magnetic survey,electromagnetic method,gravity and gravity gradient *** this paper,the latest technological progress of SQUID and SQUID⁃based geophysical precision measurement technology are *** addition,the advantages,characteristics,and existing problems of each measurement technology are *** with the requirements of current geophysical technology,the future application prospect is discussed and development suggestions are given.

关键词： SQUID geophysical method vector magnetic survey electromagnetic method gravity and gravity gradient

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Sensitivity of seismic attenuation and dispersion to dynamic elastic interactions of connected fractures: Quasi-static finite element modeling study

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Petroleum Science 2023年第1期20卷 177-198页

作者： Yan-Xiao He Wen-Tao He Meng-Fan Zhang Jia-Liang Zhang Wei-Hua Liu Xiao-Yi Ma Gen-Yang Tang Shang-Xu Wang Guo-Fa Li Jun-Zhou Liu Xiang-Long Song State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development Beijing100083China Sinopec Key Laboratory of Seismic Elastic Wave Technology Beijing100083China State Key Laboratory of Petroleum Resources and Prospecting CNPC Key Lab of Geophysical ExplorationChina University of Petroleum(Beijing)Beijing102249China CNOOC(China)Co. Ltd.Hainan BranchHaikouHainan570311China PetroChina Dagang oilfield Tianjin300280China Sinopec geophysical research institute NanjingJiangsu211103China Sinopec Petroleum exploration and Production research institute Beijing100083China Chinese Academy of Geological Sciences Beijing100037 China

Prediction of seismic attenuation and dispersion that are inherently sensitive to hydraulic and elastic properties of the medium of interest in the presence of mesoscopic fractures and pores,is of great interest in the characterization of fractured *** has been very difficult,however,considering that stress interactions between fractures and pores,related to their spatial distributions,tend to play a crucial role on affecting overall dynamic elastic properties that are largely *** thus choose to quantitatively investigate frequency-dependent P-wave characteristics in fractured porous rocks at the scale of a representative sample using a numerical scale-up procedure via performing finite element *** on 2-D numerical quasi-static experiments,effects of fracture and fluid properties on energy dissipation in response to wave-induced fluid flow at the mesoscopic scale are quantified via solving Biot's equations of *** show that numerical results are sensitive to some key characteristics of probed synthetic rocks containing unconnected and connected fractures,demonstrating that connectivity,aperture and inclination of fractures as well as fracture infills exhibit strong impacts on the two manifestations of WIFF mechanisms in the connected scenario,and on resulting total wave attenuation and phase ***,in turn,illustrates the importance of these two WIFF mechanisms in fractured rocks and thus,a deeper understanding of them may eventually allow for a better characterization of fracture systems using seismic ***,this presented work combines rock physics predictions with seismic numerical simulations in frequency domain to illustrate the sensitivity of seismic signatures on the monitoring of an idealized geologic CO_(2) sequestration in fractured *** simulation demonstrates that these two WIFF mechanisms can strongly modify seismic records and hence,indicating that incorporating the two energy dis

关键词： Attenuation and dispersion Rock physics Fractured media Frequency dependence Numerical study

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Formation mechanism of in-situ volcanic reservoirs in eastern China:A case study from Xushen gasfield in Songliao Basin

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Science China Earth Sciences 2014年第10期57卷 2998-3014页

作者： FENG ZiHui YIN ChangHai LIU JiaJun ZHU YingKang LU JiaMin LI JiangHai exploration and Development research institute Daqing Oilfield Company Ltd. School of Earth and Space Science Peking University

A large number of in-situ volcanic reservoirs have been discovered from the Meso-Cenozoic rift basin group in eastern *** on drilling results in combination with geological and geophysical analysis,a case study from the Early Cretaceous Xujiaweizi fault-depression shows that the formation mechanism of in-situ volcanic reservoirs is characterized by"fault-controlled body,body-controlled facies,facies-controlled reservoir,and reservoir-controlled accumulation".In other words,deep faults control the volcanic eruption type,volcanic body,and gas reservoir distribution;the volcanic body determines the spatial distribution of volcanic facies and volcanic gas reservoir size;the volcanic facies control reservoir physical properties and effective thickness of gas formation;the volcanic reservoir properties control gas reservoir type and gas *** result is useful to guiding the discovery of in-situ volcanic gas reservoirs in faulted basins in both theory and practice.

关键词： Songliao Basin in-situ volcanic reservoir volcanic eruption type volcanic facies belt volcanic eruption cycle

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Key Problems and Countermeasures in CO_(2)Flooding and Storage

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Acta Geologica Sinica(English Edition) 2023年第3期97卷 858-872页

作者： CHEN Huanqing research institute of Petroleum exploration and Development PetroChinaBeijing 100083China

Based on literature research in combination with the practice of CO_(2)flooding and storage in jilin oilfield,this study assesses the key problems in CO_(2)flooding and storage,proposing the corresponding countermeasures from five aspects of CO_(2)gas source condition,namely geological condition evaluation,scheme design incoordination with other production methods,economic and effectiveness evaluation,together with dynamic monitoring and safety *** results show that CO_(2)flooding is the most economic and effective CO_(2)storage *** eastern China,inorganic origin CO_(2)gas reservoirs are widely developed and are especially the most enriched in the Paleozoic carbonate rock strata and the Cenozoic Paleogene–Neogene system,which provide a rich resource base for CO_(2)flooding and *** the future,CO_(2)generated in the industrial field will become the main gas source of CO_(2)flooding and *** evaluation of geological conditions of oil and gas reservoirs is the basis for the potential evaluation,planning scheme design and implementation of CO_(2)flooding and ***_(2)storage should be below the depth of 800 m,the CO_(2)flooding and storage effects in lowpermeability oil reservoirs being the ***_(2)geological storage mechanisms primarily consist of tectonic geological storage,bound gas storage,dissolution storage,mineralization storage,hydrodynamic storage and coalbed adsorption *** practice of CO_(2)flooding and storage in jilin oilfield demonstratesthat the oil increment by CO_(2)flooding is at least 24%higher than by conventional water *** most critical factor determining the success or failure of CO_(2)flooding and storage is economic effectiveness,which needs to be explored from two aspects:the method and technology innovation along with the carbon peaking and carbon neutrality policy *** CO_(2)is injected into the reservoir,it will react with the reservoir and fluid,the problem of CO_(2)recovery or o

关键词： CO_(2)flooding and storage CO_(2)gas source low permeability reservoir economic effectiveness dynamic monitoring

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Petrological evidence of kaolinite transformation to dawsonite

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Global Geology 2012年第2期15卷 105-113页

作者： GUI Lily LIU Li YU Miao LIU Na YANG Huidong ZHANG Yongmei College of Earth Sciences Jilin University Changchun 1300061 China CNPC Key Laboratory for Basin Structure and Hydrocarbon Accumulation Research Institute of Petroleum Exploration and Development PetroChina Beijing 10083 China exploration and Development research institute Jilin Oilfield Branch PetroChina Songyuan 138001 Jilin China exploration and Development research Center Qinghai Oilfield CNPC Dunhuang 736202 Gansu China

Clay minerals, especially authigene kaolinite, are abundant in the dawsonite-bearing sandstone from the Gudian and Qian＇an regions in the southern Songliao Basin. The relationship between dawsonite and kaolinite has been investigated based on drilling data from 50 wells in the jilin Oil Field and petrological cbaracteristics analyses on 23 core samples from the Gudian and Qian＇an regions. The study revealed a negative relationship between the content of dawsonite and kaolinite, suggesting that kaolinite was replaced by the dawsonite. Combined with thermodynamics and geochemical analysis published previously, it is concluded that kaolinite is unstable under CO2-rich environments and can transform into dawsonite.

关键词： kaolinite dawsonite transformation Songliao Basin

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Burial History and Petroleum Entrapment in the Yaoyingtai Region of the Changling Fault Depression, China

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Acta Geologica Sinica(English Edition) 2017年第6期91卷 2230-2242页

作者： YANG Guang LIU Changli FAN Jiarui CHEN Peng College of Earth Sciences Jilin University Dalian Branch China Railway No.9 group Co.Ltd. D&P Technology research institute Petro China Liaohe Oilfield Company

This work aims to reconstruct the burial history of various kinds of sandstones penetrated by the well YS201 in the Yaoyingtai region of the Changling Fault Depression, southern Songliao Basin, China. Analyses of fluid inclusions in the reservoir rocks, combined with a review of the regional tectonic evolution, revealed the hydrocarbon accumulation stage and accumulation age of the Early Cretaceous Denglouku group and the first member of the Quantou group reservoir, which are the future exploration focus for deep gas reservoirs in this region. Acoustic time data and sedimentary rates calculated for sediments in the YS201 well yielded thicknesses for the Yingcheng, Nenjiang, and Mingshui groups of 506, 539.18, and 144.85 m, respectively, thereby revealing the burial history of the sediments in the well. Fluid inclusions of the Denglouku group reservoir and the first member of the Quantou group reservoir contain oil inclusions and hydro-carbonaceous salt water inclusions. The main peaks of the homogenization temperature and salinity of these saltwater inclusions in the first member of the Quantou group reservoir are generally 110-120℃ and 6wt%-8wt%, respectively, and for the Denglouku group are 130-140oc and 4wt%-6wt%. The data for both reservoirs show only one main peak, indicating that they both have experienced single-stage accumulation. Combining the homogenization temperature of the reservoir fluid inclusions with the burial and thermal history of the sediments in the YS201 well, we infer that the hydrocarbon gas in these two intervals accumulated at 79 Ma （middle Late Cretaceous）.

关键词： Songliao Basin Yaoyingtai region reservoir fluid inclusion denudation thickness,accumulation stage accumulation age

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