检索结果-南通市图书馆

Facies-controlled prediction of dolomite reservoirs in the Middle Permian qixia formation in Shuangyushi,northwestern Sichuan Basin

引用

Energy Geoscience 2024年第2期5卷 21-30页

作者： Chao Zheng Benjian Zhang Rongrong Li Hong Yin Yufeng Wang Xin Hu Xiao Chen Ran Liu Qi Zeng Zhiyun Sun Rui Zhang Xingyu Zhang Weidong Yin Kun Zhang Exploration and Development Research Institute PetroChina Southwest Oil&Gas Field CompanyChengduSichuan610500China Northwest Sichuan Gas Branch PetroChina Southwest Oil&Gas Field CompanyJiangyouSichuan621709China PetroChina Southwest Oil&Gas Field Company ChengduSichuan610500China School of Geosciences and Technology Southwest Petroleum UniversityChengduSichuan610500China

The Middle Permian qixia formation in the Shuangyushi area,northwestern Sichuan Basin,develops shoal-facies dolomite *** pinpoint promising reservoirs in the qixia formation,deep thin shoal-facies dolomite reservoirs were predicted using the techniques of pre-stack Kirchhoff-Q compensation for absorption,inverse Q filtering,low-to high-frequency compensation,forward modeling,and facies-controlled seismic meme *** results are obtained in six ***,the dolomite reservoirs mainly exist in the middle and lower parts of the second member of qixia formation(Qi2 Member),which coincide with the zones shoal cores are ***,the forward modeling shows that the trough energy at the top and bottom of shoal core increases with increasing shoal-core thickness,and weak peak reflections are associated in the middle of shoal ***,five types of seismic waveform are identified through waveform analysis of seismic ***-Ⅰ and Type-Ⅱ waveforms correspond to promising facies(shoal core microfacies).Fourth,vertically,two packages of thin dolomite reservoirs turn up in the sedimentary cycle of intraplatform shoal in the Qi2 Member,and the lower package is superior to the upper package in dolomite thickness,scale and lateral ***,in plane,significantly controlled by sedimentary facies,dolomite reservoirs laterally distribute with consistent thickness in shoal cores at topographical highs and extend toward the ***,the promising prospects are the zones with thick dolomite reservoirs and superimposition of horstegraben structural traps.

关键词： Reservoir prediction Seismic facies Shoal-facies dolomite qixia formation Shuangyushi Sichuan 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

Origin of the penecontemporaneous sucrosic dolomite in the Permian qixia formation, northwestern Sichuan Basin, SW China

引用

Petroleum Exploration and Development 2020年第6期47卷 1218-1234页

作者： LU Feifan TAN Xiucheng ZHONG Yuan LUO Bing ZHANG Benjian ZHANG Ya LI Minglong XIAO Di WANG Xiaofang ZENG Wei State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum UniversityChengdu 610500China Department of Key Laboratory of Carbonate Reservoirs of CNPC Southwest Petroleum UniversityChengdu 610500China Institute of Petroleum Exploration and Exploitation PetroChina Southwest Oil and Gas Field CompanyChengdu 610041China Northwest Sichuan Gas Mine PetroChina Southwest Oil and Gas Field CompanyJiangyou 621741China Key Laboratory of Surficial Geochemistry Ministry of EducationSchool of Earth Sciences and EngineeringNanjing UniversityNanjing 210023China PetroChina Hangzhou Institute of Petroleum Geology Hangzhou 310023China

The characteristics,formation time,and origin of the sucrosic dolomite reservoirs in the Permian qixia formation of northwestern Sichuan Basin are *** and outcrop description and microscopic analysis of the sucrosic dolomite samples are carried *** is found that the dolomite has typical features different from other kinds of dolomites:(1)This dolomite is generally medium-coarse in crystal size,and often associated with very finely to finely crystalline dolomite and cave-filling dolomite.(2)Typical identification marks of eogenetic karstification are developed at the top of the upward-shallowing sequence.(3)The medium-coarse crystalline sucrosic dolomite is cut by the early diagenetic karst fabric,and is characterized by dolomite with dissolution edge,dolomite vadose silt in pores,and transgression clay filling between the medium-coarse dolomite *** medium-coarse crystalline sucrosic dolomite was formed earlier than the eogenetic *** sucrosic dolomite with occasional cloudy core and clear rim has bright cathodoluminescence,high inclusions temperature,significant negative skewness carbon and oxygen isotopic compositions,and rare-earth element(REE)pattern similar to seawater,indicating it experienced two periods of dolomitization,evaporative concentration reflux-infiltration and penecontemporaneous seawater circulation hydrothermal fluid *** study results not only update the understanding on the dolomitization time of qixia formation,demonstrate that the sucrosic dolomite can be formed in the penecontemporaneous stage when seawater reflux superimposed with hydrothermal fluid effects,but also show that the taphorogenesis in the Dongwu period began in the Early ***,the dolomite controlled by the grain bank migration and terrain in the slope break appears in bands of large scale,this knowledge provides basis for expanding the exploration field of this type of reservoirs.

关键词： sucrosic dolomite penecontemporaneous dolomitization seawater cyclic hydrothermal fluid eogenetic karstification qixia formation Permian Sichuan Basin

来源：

维普期刊数据库

同方期刊数据库

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

Sedimentary environments controlled by tectonics and induced differential subsidence:A perspective in the Permian Liangshan and qixia formations,northwestern Sichuan Basin,China

引用

Journal of Central South University 2020年第11期27卷 3398-3416页

作者： ZHONG Yuan YANG Yue-ming WEN Long LUO Bing XIAO Di TAN Xiu-cheng ZHAO Li-ke LI Ming-long PetroChina Southwest Oil and Gas field Company Exploration and Development Research Institute Chengdu 610041China Division of Key Laboratory of Carbonate Reservoirs CNPCSouthwest Petroleum UniversityChengdu 610500China PetroChina Southwest Oil and Gas field Company Chengdu 610051China School of Earth Sciences and Engineering Nanjing UniversityNanjing 210023China

Based on field observation,core description and well logging analysis,the tectonic-sedimentary framework of the Liangshan and qixia formations in the northwestern Sichuan Basin,China is deeply *** long-term sequence cycles were identified,denoted as LSC1 and LSC2,*** sequence stratigraphic framework was established,suggesting the Liangshan formation to be not isochronously *** before deposition of LSC1 was reconstructed by the impression ***1 was featured by thin,low-energy shoal deposits in the high topography,and thick inter-shoal sea and open sea deposits in the low ***,paleogeomorphy before deposition of LSC2 was reconstructed using the residual thickness method,which was demonstrated to have primary high-energy,thick shoal deposits in the high topography,and thin inter-shoal and open sea deposits in the low *** results show that differential tectonic subsidence has already taken place during the qixia Period,and thus the Dongwu Movement should occur earlier than previously ***,pre-depositional paleogeomorphy has obvious controlling effects on the sequence stratigraphic filling and sedimentary facies *** of this study were expected to provide practical guidance to fine characterization of the sedimentary evolution process and prediction of high-quality reservoir distribution.

关键词： sequence stratigraphy paleogeomorphy sedimentary facies qixia formation Permian northwest Sichuan 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

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

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

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：