Seismic Monitoring Articles

  • Monitoring Gas Emissions from Volcanoes to Predict Volcanic Activity

    To understand and predict the behaviour of volcanoes an increasing number of scientists are combining geological monitoring and geochemical models. By measuring and monitoring the prevalence of gases like CO2, scientists hope to be able to better predict the likelihood of volcanic eruptions. In 2010 Iceland’s Eyjafjallajökull volcano erupted, releasing 250 million ...


    By Edinburgh Instruments Ltd

  • Seismic refraction for weather zone assessment in vibroseismic processing

    Refraction seismic measurements for the determination of the seismic velocities in the shallow subsurface have been performed close to Valence (F) for our partner Partner Gallego Technic Geophysics. 44 profiles with a length of 240m have been acquired in August 2016. Seismic velocities of the shallow geological layers and the bedrock could be determined to a depth of up to 25m. Results from ...


    By Geo2X

  • Isatis manages several million data sets

    Through the years, Geovariances has always endeavored to improve Isatis performances to answer their client constraints related to the always increasing size of their data sets. Most of the algorithms in Isatis are thus optimized and parallelized to run on multi-threaded computers and decrease computation time in a significant manner. ...


    By Geovariances

  • UncerTZ Consortium - Time to Depth Conversion Evolved

    Near the end of 2015 Geovariances committed itself into building a new, sophisticated tool for Time to Depth conversion in Reservoir Characterization. The challenges petitioned by the consortium partners were not easy. It included features such as: more choices in conversion (and less of a “black box”), uncertainty characterization, inclusion of faults in the conversion procedure, ...


    By Geovariances

  • Seismoelectric survey project for oil, gas and water exploration in Shengli Oilfield, China - Case Study

    Seismo Electronics LLC. has recently finished a project for its client-Sinopec Shengli Oilfield Company. This project, which has over 8000 acre survey area, has been in the works since January, 2015. Our geophysicists used our instrument to detect reservoir 2000-4000m below ground surface. We provided three recommended drilling locations to our client, which all match the client’s existed ...


    By Seismo Electronic LLC.

  • Seismoelectric survey project for oil and gas exploration in Mangistau Oilfield, Kazakhstan - Case Study

    The seismoelectric survey was conducted by Seismo Electronics LLC in November, 2015. After our survey, seismoelectric data from measurement points nearby proposed location do not show promising hydrocarbon reservoir and their signal anomalies are even weaker compare to anomalies from two existed wells. We didn't recommend drilling in this proposed location, but our client is interested in a ...


    By Seismo Electronic LLC.

  • Haiti Groundwater Survey Project - Case Study

    We already have done over 230 survey sites with DC-4500 Ground-flow Locator in Haiti with 95% success rate since 2011. More than 230 water wells were drilled and most of seismoelectric surveys were performed in ...


    By Seismo Electronic LLC.

  • Seismoelectric survey project for oil, gas and water exploration in Shengli Oilfield, China - Case Study

    In January 2015, Seismo Electronics LLC. completed the seismoelectric survey project for its client-Sinopec Shengli Oilfield Company. Our geophysicists used our instrument to detect reservoir 2000-4000m below ground surface. We provided three recommended drilling locations to our client, which all match the client’s existed reservoir analysis results. Our seismoelectric survey successfully ...


    By Seismo Electronic LLC.

  • Fracture Area Groundwater Survey, Llano, Texas - Case Study

    In April 2011, our client had four unsuccessful drilling wells before our company participated in this project at Blackjack Ranch, Llano. After geological analysis, we conducted the seismoelectric survey along the fracture direction and provided our client a well location with 5 gallon/hour water production which proved by later ...


    By Seismo Electronic LLC.

  • Beaver Dam Groundwater Survey Project, Utah - Case Study

    In May 2014, we conducted seismoelectric survey for Willowstick Technologies LLC in Beaver Dam area, Utah, USA. According to our client’s requirement, we designed 3 seismoelectric survey lines, with total 50 measurement stations. After data processing and interpretation, we located 3 layers of aquifers. The red layers are the top and bottom of the first aquifer; the green ones for the ...


    By Seismo Electronic LLC.

  • Thrall Oilfield Survey Project, Texas - Case Study

    In January 2012, we performed seismoelectric survey at 3 sites in Thrail Oilfield. The seismoelectric signals in #3 site indicated that there is no oil reservoir. In April, the drilling company drilled at this point and only got a dry-hole. However, we detected the oil reservoir at #1 and #2 sites based on seismoelectric signals. Then in October, the report from the same drilling company show ...


    By Seismo Electronic LLC.

  • Passive Seismic

    Passive seismic exploration methodology, in particular the IPSS/IPDS (Infrasonic Passive Seismic Spectroscopy/ Infrasonic Passive Differential Spectroscopy ) and PST/MST (Passive Seismic Tomography/Micro Seismic Tomography) technique uses spectroscopic and time analysis of the seismic background noise acquired passively using high sensitivity VBB (Very Broad Band) 3D seismometers.  Passive ...

  • geological prospecting & seismic device manufacturing industry in China

    China geological prospecting and seismic device manufacturing industry, 2015 is valuable for anyone who wants to invest in the geological prospecting and seismic device manufacturing industry, to get Chinese investments; to import into China or export from China, to build factories and take advantage of lower costs in China, to partner with one of the key Chinese corporations, to get market ...


  • Coping with earthquakes in Romania: advanced concepts and learning tools using a training platform and facility

    Earthquake preparedness of citizens is recognised as an efficient means for better coping with shaking impact and making easier the emergency management. Romania represents a specific case where the unique Vrancea intermediate seismic source, at the curvature of Carpathian Mountains, causes intense shaking and losses at several decades interval, but, after that, many generations do not have an ...


    By Inderscience Publishers

  • Energy dissipation of aluminium panel yielding dampers

    In this paper, an innovative type of yielding damper was introduced having aluminium panels and stiffened using stiffeners. Dampers are the first elements in structures which respond to seismic forces, prevent from destructive damage to other main elements of structure and reduce the costs related to structural improvement. A comprehensive numerical study was utilised in this research. The ...


    By Inderscience Publishers

  • Nonlinear seismic analysis of RC framed structures equipped with hysteretic damped braces

    The insertion of damped braces proves to be very effective for the seismic retrofitting of framed buildings. In the last few decades several applications have been used in many countries, adopting damping systems with different characteristics, depending on both the arrangement of the damped braces and kind of damping device. However, for a widespread application of this technique, practical ...


    By Inderscience Publishers

  • Response of frames seismically protected with passive systems in near–field areas

    The present paper analyses the behaviour of moment resisting frames in reinforced concrete subject to earthquakes recorded in near–field areas. In these areas, the signals show impulsive–type accelerograms, with velocity and displacement peaks higher than in far–field zones especially for the fault–normal component of the ground motion velocity in the direction of propagation of the wave, which ...


    By Inderscience Publishers

  • Seismic Sequence Monitoring in Cephalonia, Greece - Case Study

    Seismic Sequence Monitoring Project Area: Approximately 360km2 Seismic Network: 10 stations Recording Period: #11;43 days Two major earthquakes, ML=5.8/Mw=6.0 and ML=5.7/Mw=5.9 occurred in the island of Cephalonia (western Greece) on the 26 of January 2014 13:55 UTC (15:55 local time) and on the 3rd February 2014 03:08 UTC (05:08 local time), producing ...


    By SeismoTech Ltd

  • Passive Seismic Tomography Feasibility Study in Aguacate, Mexico - Case Study

    Passive Seismic Tomography Feasibility Study Project Area: Approximately 2km2 Seismic Network: 5 stations Recording period: 12 days Seismotech’s personnel installed five seismic stations at the Aguacate hydrocarbon production area in Mexico, aiming to record the seismicity and evaluate the potential microseismic activity on this specific area. ...


    By SeismoTech Ltd

  • Comparison between seismic retrofitting solutions for existing reinforced concrete buildings: a case study

    In assessing the safety of existing buildings, the specific actions dedicated to the knowledge of the structure delineate the parameters of the linear or non–linear analysis aimed at identifying the most appropriate structural intervention. In this context, the present paper collects the seismic analysis of a school building in reinforced concrete, illustrating the different stages concerning the ...


    By Inderscience Publishers

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