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Organic geochemical characteristics, mineralogy, petrophysical properties, and shale gas prospects of the Wufeng–Longmaxi shales in Sanquan Town of the Nanchuan District, Chongqing

Organic geochemical character... 2024-01-24

关键词:: Organic geochemicalcharacteristics; mineralogy; Wufeng–Longmaxi shales

Thick marine shales occur in the Wufeng Formation and Long_x0002_maxi Formation of Sanquan Town of the Nanchuan District, Chongqing Municipality, which is lo...

作者:: Yijun Zheng
文件大小:: 8.3 MiB

Modeling the Viscoelastic Behavior of Quartz and Clay Minerals in Shale by Nanoindentation Creep Tests

Modeling the Viscoelastic Beh... 2024-01-24

关键词:: indentation measurementsQuartz and Clay MineralsNanoindentation Creep Tests

The viscoelastic behavior of minerals in shales is important in predicting the macroscale creep behavior of heterogeneous bulk shale. In this study, in situ ...

作者:: Wang Jianfeng
文件大小:: 5.7 MiB

塔里木盆地深层海相轻质油_凝析油的成因机制与控制因素

塔里木盆地深层海相轻质油_凝析油的成因机制与控制因素 2024-01-24

关键词:: 凝析油气藏; 轻质油; 气洗分馏作用; 天然气潜力; 深层勘探; 塔里木盆地

塔里木盆地是中国蕴含丰富海相凝析油的克拉通含油气盆地，目前已在塔北隆起、塔中隆起及其斜坡区的震旦系—三叠系发现６个大型海相凝析油气藏，这些油气藏呈现出轻质油、高含蜡凝析油气、干气—轻质油—挥发性油多种类型油气藏围绕烃源岩有序聚集的特点。基于烷烃损失量计算、凝析油中烃类分子成熟度参数和天然气同位素组成的分析，提...

作者:: 张水昌,苏劲,张斌,王晓梅,何坤
文件大小:: 1.5 MiB

Characterization of free and bound bitumen fractions in a thermal maturation shale sequence. Part 1: Acidic and neutral compounds by negative-ion ESI FT-ICR MS

Characterization of free and ... 2024-01-24

关键词:: FT-ICR MSFree bitumenBound bitumenMaturation sequencePolar compoundsHydrocarbon expulsion

To evaluate petroleum generation and expulsion processes, pyrolysis experiments that simulate increased overburden pressures were conducted on an immature or...

作者:: Yinhua Pan
文件大小:: 5.6 MiB

New chronological and paleontological evidence for Paleoproterozoic eukaryote distribution and stratigraphic correlation between the Yanliao and Xiong’er basins, North China Craton

New chronological and paleont... 2024-01-24

关键词:: Organic wall microfossils; Eukaryote evolution; Red bed; Zircon U-Pb dating; Chuanlinggou Formation; Cuizhuang Formation; Changchengian System; Luoyu Group

North China Craton is one of the old cratons preserved continues recording of the early evolution of eukaryotes. Organic wall microfossils (OWMs) of eukaryot...

作者:: Dan Lyu,Yan Deng,Xiaomei Wang,Yuntao Ye,Ke Pang,Lanyun Miao,Zhong Luo,Fenglian Zhang,Yuanzheng Lu,Shenghui Deng,Huajian Wang,Shuichang Zhang
文件大小:: 53.1 MiB

An evaluation of kerogen molecular structures during artificial maturation

An evaluation of kerogen mole... 2024-01-24

关键词:: Kerogen; Molecular Structure13C NMRXPS; Condensation

13C solid-state NMR and XPS techniques were used to investigate structural changes in kerogen during oil generation process across a range of maturity. Kerog...

作者:: Liang Tian
文件大小:: 4.9 MiB

Abiotic Hydrocarbons Generation Simulated by FischerTropsch Synthesis under Hydrothermal Conditions in Ultradeep Basins

Abiotic Hydrocarbons Generati... 2024-01-24

关键词:: tra-deep basin; FTT; carbon isotope; reversed order; abiogenic hydrocarbons; hydrothermal experiments

TT experiments with water as a hydrogen source and three types of possible carbon sources in the subsurface (diron nonacarbonyl, siderite and formic acid, re...

作者:: ZHAO Zhongfeng
文件大小:: 22.4 MiB

Effects of inherent pyrite on hydrocarbon generation by thermal pyrolysis: An example of low maturity type-II kerogen from Alum shale formation, Sweden

Effects of inherent pyrite on... 2024-01-24

关键词:: Inherent pyriteNascent sulfurKerogen-bondedFree radicalsHydrogen abstraction

To resolve the controversy of iron sulfide effect on hydrocarbon generation of kerogen, a confined anhydrous pyrolysis experiment was performed on an Alum ke...

作者:: Li Kang
文件大小:: 3.0 MiB

Relationship between Hydrocarbon Gas Generation and Kerogen Structural Evolution Revealed by Closed System Pyrolysis and Quantitative Py-GC Analysis of a Type II Kerogen

Relationship between Hydrocar... 2024-01-24

关键词:: Hydrocarbon Gas Generation; Kerogen; Closed System Pyrolysis

Kerogen can release both liquid and gaseous hydrocarbons during thermal maturation. In this study, the maturation and hydrocarbon generation of a low-maturit...

作者:: Yijun Zheng
文件大小:: 4.9 MiB

Application of Grain-Based Rock-Eval Pyrolysis Method to Evaluate Hydrocarbon Generation, Expulsion and Retention of Lacustrine Shale

Application of Grain-Based Ro... 2024-01-24

关键词:: grain-based; Rock-Eval pyrolysis; kinetic; geological implication; lacustrine shale

The study on hydrocarbon generation, expulsion, and retention of shale is becoming more and more important as the exploration of unconventional oil and gas w...

作者:: Lingling Liao
文件大小:: 3.5 MiB

A new method for the quantification of hydrogen contribution from water to methane during hydrous kerogen pyrolysis

A new method for the quantifi... 2024-01-24

关键词:: Water contribution Shale gas Stable hydrogen; otope Quantification assessment; Kerogen hydrous pyrolysis

Hydrogen from stratigraphic water may compensate for H-depleted kerogen, and it may produce more shale gas resources. The contribution of water-derived hydr...

作者:: Li S. D.
文件大小:: 1.2 MiB

基于图论聚类和最小临近算法的岩性识别方法———以四川盆地西部雷口坡组碳酸盐岩储层为例

基于图论聚类和最小临近算法的岩性识别方法———以四川盆地西... 2024-01-24

关键词:: 测井响应; 机器学习; 图论聚类; 最小临近算法; 盲井预测; 岩性识别; 碳酸盐岩; 四川盆地西部

碳酸盐岩具有非均质性强、岩性变化快和岩石类型复杂的特征，岩性精细识别难度大，严重制约了储层参数的计算及后续油气开发。以四川盆地西部雷口坡组碳酸盐岩储层为例，结合岩心和薄片等分析测试资料将储层发育的岩性分为 8 类: 藻粘结白云岩、粉晶白云岩、泥晶白云岩、灰质白云岩、白云质灰岩、灰岩、膏质白云岩和石膏，明确了不同岩...

作者:: 孔强夫,杨才,李浩,耿超,邓健
文件大小:: 2.9 MiB

A new method for calculating the primary porosity of unconsolidated sands based on packing texture: Application to modern beach sand

A new method for calculating... 2024-01-24

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

The primary porosity is one of the fundamental parameters for quantitatively predicting reservoir quality and studying diagenetic evolution. Primary porosity...

作者:: Yiming Yan,Liqiang Zhang,Xiaorong Luo,Chao Li,Fanjun Hu
文件大小:: 2.8 MiB

基于支持向量机的测井物性评价——以巴西深海盐下湖相碳酸盐岩储层为例

基于支持向量机的测井物性评价——以巴西深海盐下湖相碳酸盐岩储层为例 2024-01-24

关键词:: 网格搜索; 遗传算法; 粒子群优化算法; 孔隙度; 渗透率; 支持向量机

针对巴西盐下湖相碳酸盐岩储层物性非均质性强、岩性对储层物性控制弱的难题，采用小样本统计学习性能较强的支持向量机（support vector machine，SVM）解决储层物性评价问题。SVM不仅可以从复杂的测井信息中挖掘出储层物性信息，还可以从测井曲线中挖掘出岩性信息，解决因样本少而难以分岩性进行物性评价...

作者:: 沈禄银,段太忠,潘仁芳,廉培庆,张文彪,金吉能
文件大小:: 6.1 MiB

基于数字露头表征的岩溶缝洞组构特征研究

基于数字露头表征的岩溶缝洞组构特征研究 2024-01-24

关键词:: 岩溶缝洞一间房地区数字露头表征倾斜摄影碳酸盐岩储层

受多期构造运动和流体活动事件的影响,新疆塔北奥陶系碳酸盐岩地层内发育大量形态复杂的缝洞体.通过对一间房地区的典型岩溶露头考察,针对岩溶缝洞“三无”特征(无固定形态、无固定边界、无固定体积),采用高精度摄像、无人机航拍、三维激光扫描等现代化测量手段,采集多源数据并建立一体化数字露头模型,结合构造形迹分析和地化测试结...

作者:: 杜赫,徐守余,冯建伟,任启强,王朝,徐珂
文件大小:: 26.4 MiB

泥岩化学压实作用的超压响应与孔隙压力预测

泥岩化学压实作用的超压响应与孔隙压力预测 2024-01-24

关键词:: 黏土矿物转化; 化学压实作用; 超压测井响应; 异常流体压力; 孔隙压力预测

为探索泥岩化学压实作用的增压机制及其超压响应特征,结合国内外相关研究,对泥岩化学压实作用与超压发育关系、化学压实阶段超压响应特征以及孔隙压力预测方法进行了系统总结,分析了东营凹陷泥岩化学压实作用在孔隙压力预测中的意义.认为泥岩化学压实作用以黏土矿物转化为主导机制,通过改变泥岩的微观结构及岩石物理属性,化学压实作用...

作者:: 李超,罗晓容,张立宽
文件大小:: 6.2 MiB

数据挖掘方法在测井岩性识别中的应用现状

数据挖掘方法在测井岩性识别中的应用现状 2024-01-24

关键词:: 岩性识别; 数据挖掘; 多元统计算法; 智能性算法; 测井数据

测井岩性识别是油气藏勘探开发的重要基础工作。随着计算机技术的发展,数据挖掘方法越来越多地应用于岩性识别以提高预测准确性。数据挖掘方法可归纳为多元统计算法和智能性算法两大类,其中多元统计算法包括主成分分析、判别分析,智能性算法有神经网络、决策树、支持向量机。目前多元统计算法在测井岩性识别中应用广泛,智能性算法的应用...

作者:: 李政宏,张立强,陈曦,李昊东,晋倩倩
文件大小:: 781.6 KiB

Assessing source and maturity of oils in the Mahu sag, Junggar Basin: Molecular concentrations, compositions and carbon isotopes (基于分子组成和浓度、正构烷烃单体碳同位素判识准噶尔玛湖坳陷原油油源和成熟度)

Assessing source and maturity... 2024-01-24

关键词:: Oil source and maturity assessment; oil source versus maturity indicators; Terpanes and steranesCarbon isotopes of individual n-alkanes Junggar Basin

Molecular parameters are both facies and maturity dependent. Source and maturity assessment remains a difficult task for oils which were deriv...

作者:: Zhongda Zhang
文件大小:: 25.8 MiB

Fischer图解及其在塔里木盆地巴楚地区早奥陶世海平面变化中的响应

Fischer图解及其在塔里木盆地巴楚地区早奥陶世海平面变化中的响应 2024-01-24

关键词:: 米兰科维奇旋回; 巴楚地区; 早奥陶世; Fischer图解; 海平面变化

基于典型露头、钻测井及地震资料,利用自然伽马测井曲线做出Fischer图解,可识别出具有米兰科维奇旋回特征的高频旋回,旨在分析塔里木盆地巴楚地区早奥陶世的相对海平面变化。对和田1井下奥陶统蓬莱坝组的自然伽马测井曲线进行了预处理和计算,共识别出103个米兰科维奇旋回,并做出Fischer图解。结果表明,下奥陶统蓬莱...

作者:: 胡晓贤,樊太亮,高志前,吴鹏
文件大小:: 1.8 MiB

塔里木盆地塔河油田托甫台区奥陶系碳酸盐岩断溶体系层次建模方法

塔里木盆地塔河油田托甫台区奥陶系碳酸盐岩断溶体系层次建模方法 2024-01-24

关键词:: 地质建模; 断控岩溶; 缝洞型储层; 碳酸盐岩; 塔河油田; 塔里木盆地

断控岩溶储集体（断溶体）作为缝洞型碳酸盐岩储层的一种特殊类型，受大型走滑断裂带影响，其空间结构复杂、形态不规则且随机性强，给三维精细描述及地质建模带来新的挑战。基于多元、多尺度研究资料，对塔里木盆地塔河油田断溶体系结构层次进行了划分，并提出了断溶体系“层次约束、成因控制、逐级建模”的建模思路。结果表明：断溶体系按...

作者:: 张文彪,张亚雄,段太忠,李蒙,赵华伟,汪彦
文件大小:: 8.8 MiB