遥感油气勘探对伊犁盆地的评价

遥感油气勘探技术是通过遥感影像的构造解译及烃类微渗漏信息的提取并结合其他地质资料，对目标区进行油气有利聚集区的预测及评价。利用这一勘探技术着重对伊犁盆地的构造特性、承压盆地、构造阶地、烃类微渗漏信息等进行了解译和提取，总结出伊犁盆地油气藏预测的九大要素，确定了３条油气聚集带和１４个油气远景区。     

塔里木盆地东南缘油气勘探前景的遥感综合分析

塔里木盆地南缘石油遥感地质的综合分析研究认为，研究区经历了古生代地台演化阶段、中生代前陆盆地演化阶段和新生代拗陷盆地演化阶段；研究区油气形成的生、储、盖组合齐全，油气运移和聚集构造条件有利。通过卫星遥感影像解译出的５个环形构造都是有利的油气勘探远景区。     

晋陕地区地质构造演化与油气聚集

区域构造演化研究对于搞清盆地构造层的数量、类型及其叠置方式，进而评价油气远景、估算储量、选区、勘探和深化对老区的认识并开拓油气新领域。新层系、新类型、新深度，以及探讨油气区的地球动力学等基本问题均具有重要的实际意义，作者就晋陕及周边地区的地质、地球物理、地球化学和钻井以及卫星影像等的实际资料，综合论述了本区的构造变动，岩浆活、沉积作用，成油过程、油气运移与聚集机制。以及油气藏时空分布规律和油气勘控     

论羌塘盆地油气勘探前景

羌塘盆地与中东油气区同属于特提斯构造域,是我国陆上新区面积最大的海相盆地。近20年来,我国油气地质工作者在条件极其艰苦的藏北高原开展了系统的油气地质调查和研究工作,完成了从含油气盆地分析到资源潜力评价、战略选区、靶区预测、井位论证及实施科探井的全过程,获得了一系列新发现和新认识,提出了羌塘盆地是我国最有希望取得突破的油气勘探新区。但是,对上述认识也还存在不同的看法,特别是对油气保存条件和盆地生烃潜力,还存在“好”与“不好”两种截然不同的观点。本文根据最近完成的羌塘盆地科探井工程（羌科 1井）及其配套的地质—地球物理工作所取得的最新资料,结合近20年来羌塘盆地油气地质调查所取得的成果,重点围绕烃源岩与保存条件这两个方面,对羌塘盆地油气地质特征进行论述,力求客观、准确评价羌塘盆地油气保存条件,同时分析、预测了盆地生烃潜力及油气远景,并提出下一步油气勘探建议,以期持续推进羌塘盆地未来油气勘探工作,早日实现盆地油气勘探重大突破。     

重磁综合解释在冀北—晋北地区油气勘探中的应用

本文基于冀北—晋北地区的航磁资料处理解释，结合部分重力资料，从航磁数据拼接与调平、位场转换处理和综合地质解释三方面对冀北—晋北地区开展油气远景评价；通过对研究区的区域地质背景、岩石物性、磁场特征、重力场特征、基底结构进行综合分析，优选出大同、商都、宣怀、多伦-蓝旗和围场5个重点含油气盆地，预测了9个油气勘探有利区，为下一步油气勘探工作提供了方向。     

大庆探区外围中、新生代断陷盆地群演化与油气远景项目

《大庆探区外围中、新生代断陷盆地群演化与油气远景》（项目编码XQ-2004-07）由吉林大学承担。项目的任务是研究大庆探区外围中、新生代盆地形成的区域大地构造背景、盆地类型及其演化规律；查明大庆探区外围中、新生代断陷盆地群的油气潜力，优选有利勘探战略目标区。工作区包括内蒙古自治区的东北部、黑龙江省和吉林省的东部地区，总面积约130万km^2，涉及大庆探区外围面积大于1600km^2的盆地共14个，     

《海相油气地质》作者须知

<正>报道范围(1)对海相油气地质与勘探的方针政策、研究方向、勘探目标、技术方法的见解、建议和思路(2)海相地层区含油气远景分析、盆地油气资源评价及勘探区块的评价与优选(3)海相地层区大地构造与含油气盆地的特征与演化     

《海相油气地质》作者须知

<正>报道范围(1)对海相油气地质与勘探的方针政策、研究方向、勘探目标、技术方法的见解、建议和思路(2)海相地层区含油气远景分析、盆地油气资源评价及勘探区块的评价与优选(3)海相地层区大地构造与含油气盆地的特征与演化     

《海相油气地质》作者须知

<正>投稿内容应符合以下报道主题(1)对海相油气地质与勘探的方针政策、技术方法、研究方向、勘探目标的见解、建议、思考和思路;(2)海相地层区含油气远景分析、盆地油气资源评价及勘探区块的评价与优选分析;(3)海相地层区大地构造与含油气盆地的特征与演化;     

《海相油气地质》作者须知

<正>投稿内容应符合以下报道主题(1)对海相油气地质与勘探的方针政策、技术方法、研究方向、勘探目标的见解、建议、思考和思路;(2)海相地层区含油气远景分析、盆地油气资源评价及勘探区块的评价与优选分析;(3)海相地层区大地构造与含油气盆地的特征与演化     

Chemical evolution of an inland sabkha: a case study from Sabkha Matti,Saudi Arabia

Hydrogeology Journal - Sabkha Matti is a potential discharge point for regional groundwater systems in the Rub’ al Khali topographic basin of Saudi Arabia. The hydrogeochemical evolution of...     

中东地区鲁卜哈利盆地古生界地震反射构型特征与储层预测

根据中东地区鲁卜哈利盆地古生界不同沉积相储集砂体的地震反射构型不同,运用地震资料精细解释与地震沉积学、层序地层学相结合的方法,对盆地东部已钻井区辫状河道和三角洲前缘砂体的沉积特征与地震反射构型特征进行了识别分析;并由此类比到西部地区进行储层预测,在沉积环境相同的T构造区古生界志留系三级基准面旋回TS3下降期,识别出与东部反射特征相似的两套地震反射体,分别预测为辫状河道和三角洲前缘砂体;以此为依据提交的井位建议得到采纳,实钻后证实预测砂体存在。     

沙特鲁卜哈里盆地Unayzah组砂岩储层特征

沙特鲁卜哈里盆地Unayzah组是中东地区重要的含油气层位,野外地质调查研究和钻井地质研究的结果表明,Unayzah组的沉积环境是在干旱条件下沉积的风成沙丘、干盐湖、季节性辫状河流以及风化壳。由于Unayzah组砂岩中石英含量比较高,岩石类型主要为石英砂岩,成岩作用较为简单,成岩作用对储层的改造和影响比较小。储集空间类型主要为粒间孔隙。Unayzah组是鲁卜哈里盆地油气勘探的主要目的层。     

Synoptic analysis of dust storm over Arabian Peninsula: a case study on February 28, 2009

Sand and dust storms are causing hazards and problems in aviation as well as the dangers and distresses they cause on living things. The low meteorological visibility, the presence of strong winds with gust, and the transport of dust and sand particles by the wind are dangerous on landing and departure of aircrafts, and even on planes that are parked. The main aim of the study is to examine the meteorological conditions causing the dust storm that took place in the Arabian Peninsula on February 28, 2009, and to determine the source of dust caused dust storm, sand storm, blown sand, and blown dust at the airports. Within the scope of the study, aviation routine weather report (METAR) and aviation selected special weather report (SPECI) reports have been assessed at many airports over Arabian Peninsula (AP), the northern part of the AP and North Africa. As model outputs; NCEP–DOE Reanalysis 2 data, BSC–DREAM8B, and HYSPLIT model were used. In the satellite images; METEOSAT MSG dust RGB images, MODIS, and Kalpana-1 data were used. According to obtained results, dust storms were detected in Bahrain, Kuwait, Saudi Arabia, and United Arab Emirates (UAE). At Al-Ahsa Airport in Saudi Arabia, the lowest visibility measured on February 28, 2009, dropping to 200 m, which was dominated by blowing sand. The source region of the dust observed at Dubai Airport in UAE is the eastern regions of the Rub’al Khali Desert located between Saudi Arabia, Oman, and UAE.     

Source of paleo-groundwater in the Emirate of Abu Dhabi, United Arab Emirates: evidence from unusual oxygen and deuterium isotope data

Paleo-groundwaters of 6000?years BP from the Liwa water-table sand dune aquifer in the Rub al Khali and the Gachsaran artesian carbonate aquifer, on the coast of the Emirate of Abu Dhabi (UAE), exhibit normal ??²H/??¹⁸O slopes, modest ??¹⁸O increases, and large negative deuterium excess ??d?? (Liwa aquifer: 2.19?? VSMOW and d?=??C15; Gachsaran aquifer: 3.16?? VSMOW and d?=??C28) compared to local Shamal precipitation (0.05?? VSMOW and d?=?7). This unusual isotopic signature is hypothesized to result from re-evaporation of continental runoff to the Red Sea catchment basin. It is postulated that this continental water flowed onto the surface of the Indian Ocean providing a moisture source for the monsoon that dominated precipitation during this, the last wet period in the area from 5000 to 9000 BP. Carbonate precipitation, forming speleothems, travertines, tufas, lacustrine, and capillary-zone deposits, subsequently record this ??¹⁸O isotopic signature. This rock record is thus dominated by the water source, rather than environmental conditions of deposition normally assumed to control the rock ??¹⁸O isotopic signature. As a consequence, re-evaluation of paleo-climate??¹⁸O data from the rock record may be necessary for this time period in southern Arabia.     

Land degradation analysis of mine-impacted zone of Kolubara in Serbia

This paper presents the effect of land-use changes on land degradation by utilization of remote sensing methods and the Gavrilovi? erosion potential method, due to surface mining activities in the period 2001–2011. Studied area includes the zone of influence of the Rudarski basen Kolubara, which covers the exploitation area of the Kolubara coal basin in the Republic of Serbia. The analysis is based on the processing of Landsat 5 satellite images from 2001 and 2011. In the analysis of satellite images, the supervised classification method was used. The results suggest that the observed spatial–temporal area is exposed to erosion as a result of land-use changes. Preliminary conclusion is that the dominant anthropogenic factor, responsible for changes in land use, is pronounced through the mining activity, industrialization, construction as well as agricultural activities. Very small changes in land use that occurred in the period 2001–2010 have led to relatively small amount of change from the aspect of land degradation. Also, due to the planned exploitation of the mine which included into account the sustainability of ecosystems, primarily through appropriate conservation measures, RB Kolubara is not in danger of a possible erosion processes that could undermine the stability of the basin.     

Synergie entre la télédétection multispectrale et les données de terrain pour la conception d'un nouveau modèle géodynamique d'ouverture du bassin paléozoïque des Jebilet centrales (Maroc)

The geodynamic model of the Palaeozoic basin opening of central Jebilet has been unknown before this study in spite of the abundance in the geological studies carried out in the studied sector using conventional methods. This is due to the scarcity of the key beds and synsedimentary structures. Using the synergy between the image data of the Landsat satellite TM sensor and the ground data, we have highlighted, herein, new structural data allowing the design of a new model of the Palaeozoic basin opening of central Jebilet. This opening could have been made according to dextral submeridian transverse faults with the individualization of subequatorial normal faults. To cite this article: A. El Harti et al., C. R. Geoscience 336 (2004).     

西昌盆地油气化探普查效果及下一步找油气方向

为了配合国家加快油气资源勘查步伐，四川石油管理局将西昌盆地作为下一步勘探重点地区，由于西昌盆地属勘探新区，各种地质、构造情况复杂，首先在该区实施了油气化探普查，油气化探普查结果证实了西昌盆地中部地区为油气泄漏特征，这与七坝1井结果吻合，同时发现了三个重点区域，指出盆地西部为下一步工作的重点地区，为下一步地震勘探指明找油气方向。     

Effects of mining subsidence on masonry buildings in Zonguldak hard coal region in Turkey

Gallerias are the underground constructed results of mining. As these space in underground layers collapse, horizontal and vertical ground movements occur and movement which may reach the earth’s surface are known as mining subsidence. The result of underground displacement may cause surface ground movement which can be detrimental to masonry buildings especially in hard coal regions. Thorough familiarity with general and regional characteristics of an affected area can assist reduction of the effects. Zonguldak and the nearby settlement area, with a population of 300,000, constitute the centre of a hard coal basin where extensive mining has a history extending through 160 years. Mining constitutes the main economic activity in this region, and consequently influences every aspect of life. This study’s intent is to identify the effects of mining subsidence on masonry buildings in the mining area of Kozlu, Zonguldak, Turkey and illustrate them with selected images of damaged masonry buildings. Also included are satellite and mining galleria images.     

Occurrence of heavy rainfall around the confluence line in monsoon disturbances and its importance in causing floods

It is well known that heavy rainfall occurs in the southwestern sector of the monsoon depressions due to strong convergence in that sector. By examining the rainfall distribution associated with the monsoon disturbances (lows and depressions) in one of the central Indian river basins, ‘Godavari’, the author found that when the disturbance-centre is away from the basin, heavy rainfall may also occur in the basin area close to the confluence line and cause severe floods in the river. The confluence line is the zone of convergence between the northeasterlies to the west of the disturbance centre and the monsoon westerlies. This study further reveals the importance of the position and movement of the confluence line with respect to the basin, on which the intensity and the raising period of the resulting flood depend.