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Learning Info

Standard Gravity
28.04.2020
1 589
Standard Gravity
In the preceding formula, the specific weight is determined from the specific mass using the local a…
API 8-rd Connections
28.04.2020
12 800
API 8-rd Connections
The most common type of casing connection in use is the API 8-rd connection, where 8-rd means 8-roun…
Casing Grades
25.04.2020
9 237
Casing Grades
Casing is manufactured in several different grades. Grade is a term for classifying casing by streng…
Commonly Used Bit Sizes That Will Pass Through API Casing
25.04.2020
15 373
Commonly Used Bit Sizes That Will Pass Through API Casing
You may need to use the following below table to determine bit size and casing size. 
Casing Joint Length
25.04.2020
8 181
Casing Joint Length
The lengths of casing joints vary. In the manufacture of seamless casing, it all depends...
Casing Dimensions
25.04.2020
9 822
Casing Dimensions
Casing comes in odd assortment of diameters ranging from 4.-in. to 20-in. that may seem...
Manufacture of Oilfield Casing
24.04.2020
5 347
Manufacture of Oilfield Casing
There are two types of oil-field casing manufactured today: seamless and welded. Each has specific a…
Permeability
22.04.2020
4 435
Permeability
Permeability is a measure of a rocks ability to transmit fluids....
Porosity
22.04.2020
3 050
Porosity
Porosity is a measure of the void space within a rock, expressed as a fraction (or percentage) of th…
Wireline Recording Formats
22.04.2020
6 283
Wireline Recording Formats
Wireline logs are a graphic representation of various tool responses with regards to depth. In order…
The Evolution of Standard Oil
08.02.2020
3 161
The Evolution of Standard Oil
A time-line chart showing the history of the companies derived from the Standard Oil&…
Freeing Stuck Pipe
06.02.2020
4 381
Freeing Stuck Pipe
The three main causes of stuck pipe are cuttings and cavings, keyseats, and differential sticking. C…
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