Posts

Showing posts from July, 2011

Aquifers Properties: Porosity (n)

Image
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)

Location of Lost Circulation Zone Dilemma

Image
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,

2012: Ice Age declares war on the theory!

http://youtu.be/zxbiNWSNPTk After watching this movie, my personal opinion about 2012 Ice Age is the most stupid science fiction movie I have ever seen; everything is not realistic. Even the main idea (declares war on the glaciers) is not realistic. I think this movie show the ‘next ice age’ as a theory in a bad way to promote global warming theory. #BadGeologyMovie