|
Geological study warns of three major earthquakes to hit Cairo in coming years |
 |
 |
 |
|
Written by mostafa
|
|
Thursday, 10 July 2008 00:47 |
|
 CAIRO: A geological study warned that in the coming few years Cairo might be subject to three destructive earthquakes that could measure a staggering 7 degrees on the Richter scale.
The study conducted by Egyptian geologist Taha Mohamed Abul Azayem, predicts that the point of initial rupture of the strongest of the three earthquakes will be south west Cairo, precisely around
Dahshour. That same area was the epicenter of the most destructive earthquake to hit Egypt in 1992. |
|
Last Updated on Thursday, 10 July 2008 03:57 |
|
|
future of seismic interpretation |
|
|
|
|
Written by mostafa
|
|
Monday, 30 June 2008 15:43 |
- you can talkto your computer screen and order it toshow you any data you want
- you can get in one second a map of bright spots of an area in the form of red anomalies
- in half second you get a 3-d image of fault planes appears (color pattern,fault plane,bright spot)
- in half a second,the bright spots are contoured
- all wells will appear in 3-d seismic image
- you can obtain average depth of certain lithology
- you can get average porosity of sand
- you can estimate the reserve of the prospect in few second and evaluate the risk
- you can get an electronic report
- you can contact all companies interested in that prospect to give them all information written in electronic report in five second
|
|
Last Updated on Friday, 04 July 2008 11:31 |
|
Written by Admin.G.M
|
|
Sunday, 22 June 2008 03:23 |
Electrical Methods Electrical methods include electrical resistivity, induced polarization (IP), and spontaneous or self potential (SP). Electrical surveys are used for mapping the geological framework of aquifers, locating concentrated plumes of ground-water contamination, mapping the subsurface thickness of unconsolidated sediments and the depth to consolidated bedrock, and mineral exploration. The Electrical Resistivity method measures the apparent bulk electrical resistivity by injecting current into the ground through current electrodes that are grounded at the earth's surface and measuring the difference of the electrical potential between the potential electrodes (see figure below). The amount of current (in amps) and the potential difference (in volts) is used to calculate the apparent resistivity (ohm-meters) at the midpoint of the array of the electrodes. Some common field arrays for the resistivity method are shown below. |
|
Last Updated on Wednesday, 09 July 2008 03:35 |
|
Written by Admin.G.M
|
|
Saturday, 01 March 2008 13:32 |
|
Electrical Resistivity Surveying 
ATS International, Inc. is proficient in the application of surface electrical resistivity imaging. Electrical resistivity is a versatile tool that offers the ability to obtain high-density subsurface data quickly and cost-effectively. Electrical resistivity is the characteristic of earth materials to inhibit the flow of an electrical current. Electrical resistivity is a medium property that is effected primarily by: - Water Saturation
- Ionic Strength of Pore Water
- Grain Size
- Porosity
- Clay Content
Geologic information obtainable by electrical resistivity include:
|
|
Last Updated on Sunday, 22 June 2008 03:21 |
|
Written by Admin.G.M
|
|
Saturday, 01 March 2008 11:21 |
|
What Is Well Logging?
Well logging is the process of recording various physical, chemical, electrical, or other properties of the rock/fluid mixtures penetrated by drilling a well into the earth's mantle. A log is a record of a voyage, similar to a ship's log. In this case, the ship is a measuring instrument of some kind, and the trip is taken into and out of the wellbore. In its most usual form, an oil well log is a record displayed on a graph with the measured physical property of the rock on one axis and depth (distance from the surface) on the other axis. More than one property may be displayed on the same graph. |
|
|
|
|
|
Articles 