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Aquifers Properties: Porosity (n)

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Aquifers Properties: Porosity (n) The porosity of a soil or rock is that fraction of a given volume of material that is occupied by void space, or interstices. Porosity, indicated by the symbol ( n ), is usually expressed as the ratio of the volume of voids. Most rocks naturally contain a certain percentage of voids that can be occupied by water. Fig. 1 Porosity (n)
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Geological Interpretation of Reflection Seismic Data

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Geological Interpretation of Reflection Seismic Data This my graduation research title "thesis" in partial fulfilment of requirements for B.Sc in Geology. The aim of this research is to help geophysicists and geologists new to the technique to interpret data while avoiding common pitfalls. The research providing simple guide for geologists to interpret seismic data in geological frame without mathematical or physical concept that applied in seismic interpretation. The geology department members accepted this research.
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Location of Lost Circulation Zone Dilemma

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Lost Circulation is one of the major drilling problem geologists and drilling engineer’s struggling it while drilling a well for both oil/gas and groundwater. If a very porous, cavernous or highly fractured zone is encountered while drilling; an excessive amount of drilling mud is lost to that zone during lost circulation. The zone is called a thief or lost circulation zone. In this case I’ll explain dilemma I faced while drilling groundwater well in North Sinai, Egypt we expecting the aquifer at 1200m. Within drilling community North Sinai distinguishing by repetitive Lost Circulation. I joking with my colleagues we need to invent (Lost Circulation Preventer) instead of (Plow out Preventer). That lead me to design Excell worksheet to make cement job calculation easy work , because I think every repetitive work should has a system to make it done. The following table is the important data about lost circulation zones: Depth(m) Lithology/comment From to 372 404 Dolomite, ...
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