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中国的白云岩与白云岩储层:分布、成因与控制因素

中国的白云岩与白云岩储层:分布、成因与控制因素 2024-01-24

关键词:: 油气储层; 成因机理; 白云岩化; 白云岩; 塔里木盆地; 鄂尔多斯盆地

中国是世界上少有的几乎每个地质时代都有白云岩分布的国家。从华北地区的元古宇到第四系的盐湖沉积物,都能见到各种类型的白云岩(石),但白云岩在层位和区域上分布不均,类型上也有明显差异。其中,下古生界白云岩分布最为普遍,而上古生界、中生界和新生界仅有局部地区发育白云岩。中国白云岩的类型和与之相对应的白云岩化作用主要有:...

作者:: 何治亮,马永生,张军涛,朱东亚,钱一雄,丁茜,陈代钊
文件大小:: 9.2 MiB

Fractal characteristics of pore networks and sealing capacity of Ordovician carbonate cap rocks: A case study based on outcrop analogues from the Tarim Basin, China

Fractal characteristics of po... 2024-01-24

关键词:: pore networks; Ordovician; carbonate cap rocks

Understanding and predicting the main controls on the sealing capacity of carbonate cap rocks is of great significance for ultradeep carbonate reservoir expl...

作者:: Jun Wu,Tailiang Fan,Enrique Gomez-Rivas,Anna Travé,Zhiqian Gao,Shanshan Wang,Xiaolong Sun
文件大小:: 5.5 MiB

Interpretation of abnormally negative carbon isotope excursions in Eifelian–Givetian (Middle Devonian) sediments of South China and implications for paleo-environmental variation. (华南中泥盆世埃菲尔阶至吉维特阶沉积物异常负偏碳同位素的成因及其对古环境变化的指示)

Interpretation of abnormally ... 2024-01-24

关键词:: Negative carbon isotope excursion Middle DevonianDiagenetic alteration Redox stratified Nitrogen cycle Restricted basin

Many negative carbon isotope excursions (NCIEs) have been employed to interpret global biogeochemical events in Earth history, but they are also influenced...

作者:: Wu yaowen
文件大小:: 11.2 MiB

Paleoenvironment reconstruction of the Middle Ordovician thick carbonate from western Ordos Basin, China

Paleoenvironment reconstructi... 2024-01-24

关键词:: Middle darriwilian; isotope carbon excursion PaleoenvironmentNatural gas exploration; Middle; ordovicianOrdos basin

Reconstructing paleoenvironments has long been considered a vital component for understanding the development and evolution of carbonate reservoirs. The Midd...

作者:: Jia-Qi Yang,Jun-Tao Zhang,Zhi-Liang He,Tao Zhang
文件大小:: 34.2 MiB

Volcanic events-related hydrothermal dolomitisation and silicification controlled by intra-cratonic strike-slip fault systems: Insights from the northern slope of the Tazhong Uplift, Tarim Basin, China

Volcanic events-related hydro... 2024-01-24

关键词:: dolomitisation; silicification; strike-slip faults; volcanism

Ordovician carbonate rocks on the northern slope of the Tazhong Uplift in the Tarim Basin are modified to varying degrees by hydrothermal fluids related to m...

作者:: Duan Wei,Zhiqian Gao,Tailiang Fan,Yongbin Niu,Ruixin Guo
文件大小:

准噶尔盆地中部地区深层西山窑组砂岩成岩作用及其对储层质量评价的启示

准噶尔盆地中部地区深层西山窑组砂岩成岩作用及其对储层质量评价的启示 2024-01-24

关键词:: 成岩作用; 储层质量; 相对优质储层; 深层; 永进地区

综合利用薄片、扫描电镜、电子探针和X-射线衍射等手段,研究了准噶尔盆地中部永进地区西山窑组砂岩的岩石学特征和成岩特征,讨论了成岩作用对深层储层质量变化的影响和相对优质储层的形成模式。结果表明:西山窑组三角洲前缘亚相砂岩主要是极细粒—中粒岩屑砂岩及长石岩屑砂岩,自生矿物主要是方解石、铁方解石、铁白云石、黏土矿物、硅...

作者:: 张振宇,张立宽,罗晓容,曹斌风,林会喜,曾治平,秦峰,贺文君,李超,雷裕红
文件大小:: 23.2 MiB

New method to predict porosity loss during sandstone compaction based on packing texture

New method to predict porosit... 2024-01-24

关键词:: Porosity; Sandstone; Compaction; Packing texture; Reservoir quality

The grain packing texture of underground sandstone tends to be a major controlling factor in porosity loss during compaction when the effective stress and bu...

作者:: Yiming Yan,Liqiang Zhang,Xiaorong Luo,Keyu Liu,Likuan Zhang,Tong Jia
文件大小:: 28.9 MiB

Thermal maturation as revealed by micro-Raman spectroscopy of mineral-organic aggregation (MOA) in marine shales with high and over maturities（高-过成熟海相页岩中矿物-有机质复合体 [MOA)的显微激光拉曼光谱特征作为成熟度指标的意义）

Thermal maturation as reveale... 2024-01-24

关键词:: Marine shale; Mineral-organic aggregation (MOA); Solid bitumen; Raman parameter; Maturity

Laser Raman spectroscopy of organic matter in coals and sedimentary rocks has been increasingly investigated to assess thermal maturity. Pure organic matter ...

作者:: Xiao Xianming
文件大小:: 5.0 MiB

四川盆地晚奥陶世有机碳、氮同位素异常及其古环境意义

四川盆地晚奥陶世有机碳、氮同位素异常及其古环境意义 2024-01-24

关键词:: 晚奥陶世; 有机碳同位素; 氮同位素; 有机质埋藏; 反硝化作用; 四川盆地

晚奥陶世全球海洋环境曾发生重要的改变, 特别是赫南特冰期的气候变冷, 造成了古海洋沉积物中多项地球化学指标出现异常现象, 全球多地区出露的赫南特阶均记录了冰期时出现的碳、氮同位素异常, 但对其产生机制的认识存在争议。四川盆地东南缘三泉剖面和双河剖面的奥陶系五峰组、观音桥段以及志留系龙马溪组的有机碳同位素、总...

作者:: 何龙,王云鹏,陈多福
文件大小:: 2.6 MiB

四川盆地西部彭州气田中三叠统雷口坡组四段上亚段白云岩孔隙表征、分布及成因

四川盆地西部彭州气田中三叠统雷口坡组四段上亚段白云岩孔隙表征、分布及成因 2024-01-24

关键词:: 储层表征; 储集体分布; 储层成因; 白云岩; 雷口坡组; 彭州气田; 四川盆地

彭州气田雷口坡组四段上亚段的微生物白云岩和微粉晶白云岩是油气主要的储集岩。在此,采用了多种分析手段及统计方法,深入研究了主要岩性的孔隙类型、物性和孔隙结构参数及其与岩相(尤其是微生物岩)、白云石晶体大小等关系,综合划分出4种储集体类型及致密层段(隔层),初步提出了孔隙形成与分布的主控因素。研究表明:具残余藻结构的...

作者:: 周凌方,钱一雄,宋晓波,曹波,尤东华,李勇
文件大小:: 13.6 MiB

准噶尔盆地红车断裂带结构与成藏差异性分析

准噶尔盆地红车断裂带结构与成藏差异性分析 2024-01-24

关键词:: 断裂结构; 断裂体系; 控藏差异; 红车断裂带; 准噶尔盆地

红车断裂带中断裂十分发育,体系复杂,且主断裂延伸长,空间上不同部位断裂特征及控藏作用差异明显.利用测井、岩心、高精度地震数据体资料,根据断裂性质、组合样式及活动强度差异性等在平面上将红车断裂分为南北两段,北段主要发育逆断裂,南段主要发育走滑断裂;在剖面上分为上下两层断裂体系,上层为张性断裂体系,下层为压性断裂体系...

作者:: 吴孔友,郭建勋
文件大小:: 2.4 MiB

Effects of extractable organic matter from mature lacustrine shale on the pore structure and their implications.

Effects of extractable organ... 2024-01-24

关键词:: TRIASSIC YANCHANG FORMATION ORDOS BASIN PRIMARY MIGRATION SOURCE ROCKS PETROLEUM EXPULSION ZHANGJIATAN SHALE BARNETT SHALE SOLID BITUMEN GAS SHALES OIL

The porosity and pore size distribution of shale within the oil window before and after solvent extraction are important for estimating the total oil content...

作者:: Lei Yuhong,Xiaorong Luo,Xiangzeng Wang,Ming Cheng
文件大小:: 9.1 MiB

A GIS-based grid model for spatial data management and preliminary applications for assessing deep oil-gas resources

A GIS-based grid model for sp... 2024-01-24

关键词:: spatial data; preliminary applications; assessing deep oil-gas resources

With the development and maturity of mid-shallow reservoirs, deep reservoirs have become the main exploration targets recently. Deep oil-gas exploration and...

作者:: Na Li
文件大小:: 1.6 MiB

Sedimentological constraints on the initial uplift of the West Bogda Mountains in Mid-Permian

Sedimentological constraints ... 2024-01-24

关键词:: Asian orogenic belt; Paleozoic tectonic evolution; Chinese Tien-shan; Turpan-hami basin; NW China; Northwest China; Sedimentary record; Tianshan orogen; Tarim basin; Junggar

The Late Paleozoic is considered to be an important stage in the evolution of the Central Asian Orogenic Belt (CAOB). The Bogda Mountains, a northeastern bra...

作者:: Jian Wang,Ying-chang Cao,et al
文件大小:: 11.6 MiB

Linkage and formation of strike-slip faults in deep basins and its implications for petroleum accumulation: A case study from the Shunbei area of the Tarim Basin, China

Linkage and formation of stri... 2024-01-24

关键词:: SAN-ANDREAS FAULT; ZONE ARCHITECTURE; DAMAGE ZONES; FLUID-FLOW; ALTYN-TAGH; KINEMATIC EVOLUTION; BRITTLE FAULTS; TAZHONG UPLIFT; SIERRA-NEVADA; TIBET PLATEAU

Linkage of fault segments is a critical process during the formation of strike-slip faults, and it influences the generation and distribution of related stru...

作者:: Yin Liu,John Suppe,et al
文件大小:: 16.1 MiB

Reservoir petrofacies — A tool for characterization of reservoir quality and pore structures in a tight sandstone reservoir: A study from the sixth member of Upper Triassic Yanchang Formation,Ordos Basin,China

Reservoir petrofacies — A too... 2024-01-24

关键词:: Diagenesis; Petrofacies; Reservoir quality; Pore structures; Tight sandstones; Yanchang Formation

Reservoir petrofacies is an important tool for the better understanding of the key petrographic parameters (primary texture and detrital component, types and...

作者:: Cao Binfeng,Sun W,Li J
文件大小:: 28.1 MiB

塔里木盆地塔河油田 TH12402 井区中下奥陶统古岩溶洞穴发育模式

塔里木盆地塔河油田 TH12402 井区中下奥陶统古岩溶洞穴发育模式 2024-01-24

关键词:: 低幅度岩溶地貌; 鼻状构造; 迷宫状岩溶管道; 孤立状洞穴; 走向断裂; 塔河油田

塔里木盆地塔河油田TH12402井区位于志留系覆盖区,发育典型的古岩溶缝洞型储集层,是塔河油田西北部奥陶系主要的产建阵地之一。基于三维地震数据、测井和钻井资料,并结合地震属性提取技术,对该区下奥陶统岩溶发育条件和储集层发育特征进行了研究,探讨了岩溶洞穴的控制因素和发育模式

作者:: 姜应兵,李兴娟
文件大小:: 3.8 MiB

Factors controlling reservoir properties and hydrocarbon accumulation of the Eocene lacustrine beach-bar sandstones in the Dongying Depression, Bohai Bay Basin, China

Factors controlling reservoir... 2024-01-24

关键词:: Reservoir petrophysical property; Diagenesis; Compaction; Carbonate cementation; Hydrocarbon accumulation; Dongying depression

Lacustrine beach-bar sandstone reservoirs are economical important exploration targets in the Dongying Depression, Bohai Bay Basin. The factors that controls...

作者:: Jian Wang,Yingchang Cao,et al
文件大小:: 13.7 MiB

Calculating the primary porosity of unconsolidated sands based on packing texture: Application to braided river sands

Calculating the primary poros... 2024-01-24

关键词:: Primary porosity; Mathematical model; Packing texture; Grain size distribution; Braided river sands; Beach sands

Primary porosity is an important parameter in studies of reservoir and porosity evolution. However, the applicable conditions for the few existing mathematic...

作者:: Yiming Yan,Liqiang Zhang,Xiaorong Luo
文件大小:: 2.6 MiB

莺琼盆地重点区带深层储层岩石力学参数求取及意义

莺琼盆地重点区带深层储层岩石力学参数求取及意义 2024-01-24

关键词:: 岩石力学参数; 深层岩石; 主控因素; 莺琼盆地; 测井解释

莺琼盆地中新统是油气勘探开发的重点层系,但海上区块深层储层取心极少,岩石力学参数研究较为薄弱。针对这种现状,文章基于声波全波列测井曲线,计算岩石动态力学参数;利用全岩矿物、物性分析以及压汞实验资料,分析岩石力学参数的影响因素。结果表明:研究区中新统储层杨氏模量介于20～50 GPa之间,泊松比介于0.1～0.35...

作者:: 张冠杰,吴孔友
文件大小:: 6.3 MiB