Learning Info

High pressure high temperature (HPHT)
04.03.2018
3 553
High pressure high temperature (HPHT)
High pressure, high temperature (HPHT) is a term used to define any well having a pressure greater t…
Equivalent circulating density (ECD)
01.03.2018
5 716
Equivalent circulating density (ECD)
ECD (equivalent circulating density) is the dynamic density exerted by a circulating mud at any poin…
Cable-tool drilling (Percussion Drilling)
28.02.2018
1 865
Cable-tool drilling (Percussion Drilling)
Cable-tool drilling is a method of drilling in which a hole is made by the repeated blows generated…
Acid Fracturing
27.02.2018
1 739
Acid Fracturing
Acid fracturing is a production stimulation technique in which acids, injected at high pressures, ar…
Mud Cake (Filter Cake)
25.02.2018
4 322
Mud Cake (Filter Cake)
Filter cake is formed when the insoluble solid portion of fluid slurry becomes deposited on a permea…
Hook load
25.02.2018
3 187
Hook load
Hook load is the sum total of all the downward forces pulling on the hook. This hook is normally att…
Classification of drilling rig
17.02.2018
3 873
Classification of drilling rig
There are many types and designs of drilling rigs, with many drilling rigs capable of switching or c…
FOSV: A manual valve usually installed on DP after a kick occurs when the kelly is not in use.
16.02.2018
1 895
FOSV: A manual valve usually installed on DP after a kick occurs when the kelly is not in use.
FOSV: A manual valve usually installed on DP after a kick occurs when the kelly is not in use. It us…
What is Residual Saturation?
10.02.2018
1 120
What is Residual Saturation?
This is a sketch of an enhanced oil recovery technique. After primary methods, man goes ahead and tr…
The Evolution of Standard Oil
08.02.2018
7 689
The Evolution of Standard Oil
A time-line chart showing the history of the companies derived from the Standard Oil&…
Freeing Stuck Pipe
06.02.2018
3 329
Freeing Stuck Pipe
The three main causes of stuck pipe are cuttings and cavings, keyseats, and differential sticking. C…
Water-Based vs. Oil-Based Drilling Fluids.
05.02.2018
6 581
Water-Based vs. Oil-Based Drilling Fluids.
These two types of drilling fluids have very different behavior. In recent years, the oil-based dril…
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