EAGE-GSM 2nd Asia Pacific Meeting on Near Surface Geoscience and Engineering最新文献

Soil-Rock Interface Mapping in Jinan urban area using H/V Spectral Ratio of the Microtremor 基于微震H/V谱比的济南城区土石界面填图

EAGE-GSM 2nd Asia Pacific Meeting on Near Surface Geoscience and Engineering Pub Date : 2019-04-24 DOI: 10.3997/2214-4609.201900380

P. Xu, S. Ling

引用次数: 0

U-238 in IOCG Sin Quyen deposit, North Vietnam 越南北部IOCG sinquyen矿床中的U-238

EAGE-GSM 2nd Asia Pacific Meeting on Near Surface Geoscience and Engineering Pub Date : 2019-04-24 DOI: 10.3997/2214-4609.201900449

D. T. Kieu, W. Zygo, H. Van

引用次数: 0

Marrying seismic attributes and geomechanical analysis for de-risking induced seismicity in unconventional reservoirs 结合地震属性和地质力学分析降低非常规储层诱发地震活动性风险

EAGE-GSM 2nd Asia Pacific Meeting on Near Surface Geoscience and Engineering Pub Date : 2019-04-24 DOI: 10.3997/2214-4609.201900381

H. A. Khair, M. Adams

{"title":"Marrying seismic attributes and geomechanical analysis for de-risking induced seismicity in unconventional reservoirs","authors":"H. A. Khair, M. Adams","doi":"10.3997/2214-4609.201900381","DOIUrl":"https://doi.org/10.3997/2214-4609.201900381","url":null,"abstract":"Summary Induced seismicity resulted from hydraulic fracturing is an unintended issue, and unpredicted by-product of tight reservoir development. We introduce a new workflow to identify the location and extent of the subtle faults (I.e. below or close to seismic resolution), which may also contribute to the risk of potential induced seismicity. A sequence of post stack seismic processing workflow is introduced. The location of the new identified subtle faults correlates well with the focus of the induced micro-seismicity events. Most Positive Curvature attribute identified a constant NW-SE fault orientation parallel to the Rocky Mountains. The stresses and pore pressures resulted from Mechanical earth models (ID MEM) were then applied on the interpreted faults, and fault susceptibility analysis was conducted. The authors suggest that N-NNE trending faults oriented to current day in-situ stress are critically stressed. This workflow offers a solution to avoid such critically stressed faults that may be prone to slip. It should be noted, that smaller scaled seismicity events, known as micro-seismicity should not be confused with larger events. This is primarily because micro-seismicity, and any seismicity under a Richter scale value of three are not believed to be associated with damage to buildings, or man-made structures.","PeriodicalId":393867,"journal":{"name":"EAGE-GSM 2nd Asia Pacific Meeting on Near Surface Geoscience and Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126052082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Magnetic source depth delineation of the Mulgathing Trough beneath cover in the Gawler Craton, South Australia 南澳大利亚高勒克拉通Mulgathing槽盖下磁源深度圈定

EAGE-GSM 2nd Asia Pacific Meeting on Near Surface Geoscience and Engineering Pub Date : 2019-04-24 DOI: 10.3997/2214-4609.201900414

C. Foss, T. Wilson, G. Gouthas, L. Katona, Philip Heath

引用次数: 0

Magnetotelluric monitoring of electrical resistivity changes in an active fault zone 活动断裂带电阻率变化的大地电磁监测

EAGE-GSM 2nd Asia Pacific Meeting on Near Surface Geoscience and Engineering Pub Date : 2019-04-24 DOI: 10.3997/2214-4609.201900437

A. Mahallati, M. Montahaei

引用次数: 0

The inversion of 2-D and 3-D resistivity data from surveys in aquatic areas 水体测量中二维和三维电阻率数据的反演

EAGE-GSM 2nd Asia Pacific Meeting on Near Surface Geoscience and Engineering Pub Date : 2019-04-24 DOI: 10.3997/2214-4609.201900401

M. Loke, T. Dahlin, D. Rucker

{"title":"The inversion of 2-D and 3-D resistivity data from surveys in aquatic areas","authors":"M. Loke, T. Dahlin, D. Rucker","doi":"10.3997/2214-4609.201900401","DOIUrl":"https://doi.org/10.3997/2214-4609.201900401","url":null,"abstract":"Resistivity surveys are now also carried in areas covered by water. The surveys involve electrodes planted on the water bottom or on a streamer towed by a boat. As the water layer has a large effect on resistivity measurements, its effect must be accurately modelled. The water resistivity and depth to the bottom are usually independently measured with a conductivity meter and depth sounder. The upper part of a finite-element grid is used to model the water layer, including possible variations in the water resistivity with depth. We show the results from a 2-D survey in Stockholm with electrodes planted on the sea bottom. The sediment thickness from the inverse model agrees well with drilling results and a possible weak zone in the bedrock was detected. Surveys with floating electrodes do not follow a straight line due to water currents and a 3-D inversion approach is required. An example is shown from a survey in the Panama Canal where the data from 19 sub-parallel lines are collated into a 3-D data set. The inverse model shows a conductive bottom with weathered marine sedimentary rocks and a remnant of an old river channel filled with more resistive sands and gravels.","PeriodicalId":393867,"journal":{"name":"EAGE-GSM 2nd Asia Pacific Meeting on Near Surface Geoscience and Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114305719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Surveying a Slope Deformation along Highway by Application of Unmanned Aerial Vehicle (UAV) 应用无人机(UAV)测量公路沿线边坡变形

EAGE-GSM 2nd Asia Pacific Meeting on Near Surface Geoscience and Engineering Pub Date : 2019-04-24 DOI: 10.3997/2214-4609.201900434

V. Loo

{"title":"Surveying a Slope Deformation along Highway by Application of Unmanned Aerial Vehicle (UAV)","authors":"V. Loo","doi":"10.3997/2214-4609.201900434","DOIUrl":"https://doi.org/10.3997/2214-4609.201900434","url":null,"abstract":"Summary Unmanned Aerial Vehicle (UAV) has been rapidly developed for the past decades. This technique has distinct advantages over traditional methods to produce aerial photographs. It can provide high resolution images with less time and cost. With photogrammetric techniques coupled with software as well as sufficient known parameters (focal length, pixel size, and distance of sensor from ground), the images can be processed to generate the contour map by commercial softwares. This research offers key insights on the application of UAV photogrammetry for slope surveying in civil engineering. The objective of this research is to validate the accuracy of applying photogrammetric methods via UAV surveying for a slope failure. Several surveying points are chosen to compare with the elevation obtained from UAV Photogrammetry. The result shows a difference less than 100mm which was found to be acceptable. The gain in time and labour savings reinforces the prospect of using UAV Photogrammetry as a cost-effective means for surveying of on-going construction site, slope survey, monitoring of slope movement and other application for civil engineering.","PeriodicalId":393867,"journal":{"name":"EAGE-GSM 2nd Asia Pacific Meeting on Near Surface Geoscience and Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121604085","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reconnaissance Survey of Limestone Cliff in Bukit Takun, Templers Park by Terrestrial 武吉塔昆，寺庙公园石灰岩悬崖的陆地勘测

EAGE-GSM 2nd Asia Pacific Meeting on Near Surface Geoscience and Engineering Pub Date : 2019-04-24 DOI: 10.3997/2214-4609.201900448

M. A. Hellmy, R. Muhammad, M. Shuib, T. Ng, W. Abdullah

引用次数: 0

Determination of resonant properties of near-surface layer using microtremor data 利用微震资料测定近地表层的共振特性

EAGE-GSM 2nd Asia Pacific Meeting on Near Surface Geoscience and Engineering Pub Date : 2019-04-24 DOI: 10.3997/2214-4609.201900450

Y. Kolesnikov, K. Fedin

引用次数: 0

Prediction of Coal Top by Conductively-Guided Borehole Radar Waves: Results from Field Trials 导电性钻孔雷达波预测煤顶:现场试验结果

EAGE-GSM 2nd Asia Pacific Meeting on Near Surface Geoscience and Engineering Pub Date : 2019-04-24 DOI: 10.3997/2214-4609.201900430

Bin Zhou, M. van de Werken

引用次数: 0