目前针对超低渗油藏单井产能的地质因素分析极少.文章通过姬塬地区长4+5超低渗油层组为研究目的层,以岩芯分析、测井解释数据统计、粒度分析资料、储层宏微观表征等技术手段,对影响目的层位的主要地质因素进行分析.结果 表明,研究区目的层单井产能受沉积相类型、储层类型、储层微观参数与有效厚度等多种地质因素控制.具体表现在水下分流河道、前缘席状砂等以砂岩含量居多的沉积微相对应层位单井产能较高;储层内孔隙的空间组合类型、孔渗参数大小均影响储层的渗透与流通程度,从而影响其单井产能.总结不同地质因素对姬塬地区长4+5超低渗油藏的控制作用,可以为研究区今后的布井开发,或进一步的方案调整提供有利的依据.

在松辽盆地和准噶尔盆地的火山岩亿吨级大型油气发现已经预示着火山岩油气藏为今后油气发展的重要领域.对于勘探开发中现场火山岩岩性的识别难度较大,常规的方法的准确性和时效性并不能达到现场工作要求,现场录井岩屑肉眼及显微镜直观反馈的信息量较少,为了满足现场通过岩屑分析来快速识别火山岩岩性的要求,本研究以XRF技术为背景,利用录井岩屑元素进行大数据分析,判断火山岩岩性识别的特征元素,获取其特征元素含量与岩性的空间关系,应用统计分析中Fisher判别法进行判别分析,最终获得火山岩岩性识别的判别函数.通过对研究区共计350个火山岩样品的分析结果表明,此方法在火山岩岩性判别效果良好,符合率达到90％以上.应用效果表明基于XRF技术的fisher判别法在识别火山岩岩性中有着较好的应用效果,具有一定的推广价值.

应用丰富的岩心资料、测井资料以及录井资料,通过岩心观察描述以及沉积相分析方法,深入开展鄂尔多斯盆地合水地区长6油层组储层的沉积相类型及相模式等研究.通过岩石类型、沉积结构、构造、古生物以及沉积环境分析,认为长6油层组沉积时期主要发育陆相湖盆深水浊积扇相,并可划分出内扇、中扇和外扇等3个亚相;通过沉积相及测井相等分析方法,以明确沉积相平面展布以及垂向演化规律,最终建立了研究区长6油层浊积扇相模式.

研究矿区位于松辽盆地北部东南断陷区西侧的徐家围子断陷沙河子组,成矿地质条件良好,本文运用沉积地质学研究方法,结合盆地周缘露头剖面和钻井、测井等资料,开展对沙河子组各沉积相类型的研究.在松辽盆地北部东南断陷区西侧徐家围子断陷沙河子组辫状河三角洲中共识别出辫状河三角洲平原和辫状河三角洲前缘2种亚相类型,并进一步划分为8个微相.

沈161块S23亚段储层属于扇三角洲分流平原亚相沉积.各个沉积相的储层物性差异比较大,砂体横向连续性较差,其非均质性十分显著.垂直和水平的油层没有充分利用,回收率只有13％.油田开发仍具有潜力.文章阐明储层物性特征,认真研究储层非均质性,为下一步指导生产做好准备.

在精细小层对比的基础上、采用密井网大比例尺绘图方法对沈161块微构造进行研究,划分出三种微构造单元和四种配置模式.根据单井累计产量资料表征剩余油含量,研究不同的微构造类型及配置模式对剩余油的控制程度.分析认为:微构造正向单元、顶凸底凸型配置模式发育处是沈161块剩余油分布的有利区,当有利区域恰好发育分流河道沉积微相时对剩余油有着最好的控制作用.

数字国土工程对我国数字化地质考察发展带来强烈的冲击与推动作用,增加了对地质专业人才的需求量.本文对数字化技术在野外地质考察实习填图中的应用进行研究,以传统地质填图方法中存在的不足作为切入点,通过前期准备、野外实践到室内资料整理三个阶段总结RGMAP数字填图系统在野外地质实习过程中的应用技术,为地质专业大学生地质野外实习填图数字化技术应用提供技术参考.

为进一步认清三塘湖盆地石炭系火山岩成岩作用及储层形成机理,明确次生孔隙形成及演化规律,通过岩心观察、薄片鉴定和电镜资料的研究分析,从蛇绿岩套、典型碱交代矿物、特殊元素的富集、碳硅泥岩系4个方面证实了火山岩碱性成岩作用的存在.碱性成岩作用的提出可以解决“上硅下碱”的垂向交代序列,岩石红化、碎裂,隐爆角砾岩的发育,风化壳型储层差异性,交代蚀变矿物的异常叠加方式,长石充填孔缝,圈闭有效性及储层范围预测,火山岩储层形成机理等8个方面问题.

伴随社会的全面发展,我国教育事业呈现蓬勃发展的态势,素质教育深化落实背景之下,要求实践高等教育过程中必须培养理论知识与实践能力并行发展的现代化人才。以素质教育改革视阈分析的高校实践教育是诸多专业的必然发展趋势。本文以大学生野外地质实践教育为研究视角,针对野外地质实践教育改革现状做出具体分析,并且针对改革实践中遇到的困境提出相应的整改对策,旨在为高校地质勘测相关专业教育者在野外地质实践教育过程中提供参考与借鉴,推进我国高等教育水平全面提升,培养适应现代化建设的地质勘测人才。

Mainly describes the member 1 of Quantou Group of wangfu sag in the period of formation of sedimentary facies types. Research by core analysis, seismic analysis of data, equal to the palace area member 1 of Quantou Group a characteristics of sedimentary facies has carried on the thorough analysis and research. Based on the sedimentary facies marks, sedimentary structure in the study area, seismic facies marks or other research depositional system analysis, were divided into 3 types of sedimentary facies, 7 kinds of sedimentary phase and 13 types of sedimentary microfacies.

In order to study and understand volcanic rock diagenesis and its effect on the evolution of reservoir space in Yaoshen area to further guidance exploration and development of volcanic gas reservoir, petrological characteristics and diagenesis of volcanic reservoirs of Yingcheng formation in Yaoshen block were studied based on core description, thin section analysis, pore characteristic analysis, microphotograph and scanning electric microscope observation. The results show that there are 10 kinds of diagenesis types in Yingcheng group, the solution effect, weathering leaching effect and structure effect have a decisive influence on reservoir pore formation; reservoir space evolution has four stages, the diagenesis has great influence on reservoir space evolution.

The sedimentary characteristics are treated in this study for Jijialing profile which is located in the southeast margin of the Songliao basin.According to the accurate investigation and granulometric analysis,Ji-jialing profile is a typical profile which reflected the evolution of alluvial fan to meandering river.Vertically, the profile developed alluvial fan facies from 0 to 28 m,braided river facies from 28 to 70 m and meandering river facies from 70 to 510 m.The alluvial fan was divided into two subfacies,namely medial fan and distal fan.The two subfacies can be subdivided into five microfacies,namely debris flow,mudflow,fun-surface channel,cross flow and shoal materials.The braided river was divided into two subfacies,namely channel and floodplains.The two subfacies can be subdivided into three microfacies,namely channel lag deposit,braided bar and overbank.The meandering river was divided into three subfacies,namely channel,channel levee and floodplains.The three subfacies can be subdivided into five microfacies,namely channel lag deposit,point bar,natural levee,crevasse fan and overbank.The characteristics of probability cumulative grain size curves in different sedimentary facies are as follows:The probability cumulative grain size curves of alluvial fan include‘one suspension’and ‘roll-leap-suspension’patterns;The braided river has ‘roll-leap-suspension’pattern;The meandering river has ‘leap-suspension’pattern.The continuous evolution of alluvial fan—braided river—meandering river reflected paleogeographic background of large terrain elevation—steep slope—peneplain during the sedimentary period of Quantou Formation in the southeast margin of the Songliao basin.

This paper is directed at addressing a greater development and production impact due to the complex oil-water distribution of X oil field in Chaoyanggou oilfield. This research builds on the com-bination of the structure map, sediment facies map, subdividing layer in vertical direction, and subdivi-ding fault block in horizontal direction and analyzes oil-water distribution regularity. The results show that the distribution of oil-water can be classified into three kinds:the first kind is characterized by the con-current presence of oil and water in same layer and same fault block, leaving oil higher than water, rec-ognized as a normal oil-water distribution typical of structural reservoir;the second kind is distinguished by the occurrence of water higher than oil in different fault block in same layer, leaving the water layers in a fault block being separated by the fault from other oil layers; and the third kind is marked by the simultaneous development of oil and water in same fault block in same layer, leaving water higher than oil. The combined effects of three key elements:the fault, sediment facies, and source rock, lead to the complex distribution of oil-water. The application of the proposed distribution laws to potential well drill-ing may provide an improvement in oil drilling rate and gives a desired result.

王府泉头组地层是重要的气层,为了对其储层特征进行精细刻画,首先通过岩心及测井资料对研究区沉积微相类型进行确定,随后,通过12口标准井的各种地震属性,优选出均方根振幅反应砂岩厚度.采用单井及地震下切谷两种手段对河道边界进行控制.计算不同砂组的砂地比对整个泉一段的沉积演化进行恢复.该项研究为接下来研究区储层特征、气藏类型以及气藏主控因素等问题的探究提供了详细的资料,有助于工区内有利区的识别与判断.

Through study on gas reservoir distribution characteristicsinWangfu area, the main control factors of gas reservoir inDenglouku groupwereanalyzed.AimedatDenglouku group anatomical structure gas reservoirs and lithologic gas reservoir, accumulation conditions and main control factorsinWangfu areawereanalyzed. Theresults show that, Wangfuregion has the formation conditions of gas reservoir, the main control factors of gas reservoirare reservoir and hydrocarbon source rock, fault and structureofthe formation.

Quantouformation’s sedimentary facies in Wangfu sagofBinCountywas described.Bycore analysis, single well facies analysis andothermeans, the main types of the sedimentary faciesweredetermined. Theresults show that the sedimentary facies isbraided river delta and meandering river sedimentary facies.Thesedimentary environmentcan bedivided into distributary channel microfacie, overbank deposit, underwater distributary channel microfacie, underwater distributary channel microfacie, estuary dam microfacie, channel lag, point bar microfacie, natural levee microfacie, crevasse splay microfacie , river flood plain microfacie and diffuse lake microfacie,.

王府地区目前尚处于勘探阶段,已经发现天然气的储集.为研究该区域储层建筑结构,以城深7井作为标准井制作岩心相,分析取芯井岩相类型;对比研究区内所有探井的测井曲线,分析登娄库组各部分的沉积相类型及微相特征;计算登娄库组不同砂组的砂地比,分析水进水退趋势;通过单井校正和地震剖面上对下切谷的识别绘制砂组的沉积相平面图,描述沉积相展布和砂体展布情况.结果表明:登娄库组主要沉积相类型为辫状河三角洲沉积,分为辫状河道沉积微相、越岸沉积微相、水下分流河道微相和水下分流河道间微相四个沉积微相类型.登娄库组地层在沉积时期经历了一次水进水退旋回,最大湖泛面为d22时期,沉积期物源有北东和南西两个方向.王府断陷沉积受沉积环境和盆地演化影响.该研究为气藏开发提供了基础资料.

The palace is located in the Songliao Basin, southeast regional uplift Palace rift, Denglouku off during the deposition of Au transition period for the basin, with more than provenance, short distance transport, Tianpingbuqi characteristics, Quantou deposition during the period of depression basin, with settlement rate, stable sedimentary environment and so on. According to the results of previous research and heavy mineral analysis to determine the palace area Denglouku Quantou northeast direction during the deposition source and southern elm Dehui subject matter - Fulongquan provenance affects two provenances, braided river Delta - meandering river depositional environment. Total identify four kinds of sedimentary facies, seven kinds subfacies and 14 types of sedimentary microfacies.

According to four typical Wells in this area, this study focus on the classification, the core section of the lithology and its corresponding interval represented by the sedimentary facies classification and correlation of logs, single well sedimentary facies model is established. And selected the 11 key well even well section, applying comprehensively the log data, core and logging to help Yang reservoir vertical sedimentary facies evolution are studied, thus establish three surrounding areas in fuyu oil layer of shallow water delta depositional model.

After many years of production and development, the lamadian oil field has entered the high-determining period, detailed studies of sedimentary microfacies and remaining oil has become the focus of the current oil field's continuous production. Take high II group 1 to 18 small layers in the north of lamadian oil field as example, combining with studing the area sedimentary background, according to the results of core data, laboratory analysis and log data, to elaborate purpose layer of sand body, identify the four types of microfacies (submerged distributary channel, mouth bar, far sand dam, sand sheet), and based on the combined characteristics of sedimentary microfacies are clear purpose layer plane distribution of sedimentary microfacies are in the study area. On this basis, accurate to analy the influence factors of the remaining oil distribution, summarize the rule of remaining oil distribution. The results show that High II group of sand body is mainly developing the underwater distributary channel sand and sheet sand, is the delta front deposition; Factors that affect the remaining oil distribution are sedimentary facies, reservoir property and heterogeneity (permeability heterogeneity and interlayer heterogeneity) insulation thickness, sand body; Different microfacies sandbodies extension direction and continuity and plane heterogeneity often form a lot of remaining oil.