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 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
You may need to use the following below table to determine bit size and casing size.
Casing Joint Length
The lengths of casing joints vary. In the manufacture of seamless casing, it all depends...
Casing comes in odd assortment of diameters ranging from 4.-in. to 20-in. that may seem...
Manufacture of Oilfield Casing
There are two types of oil-field casing manufactured today: seamless and welded. Each has specific a…
Porosity is a measure of the void space within a rock, expressed as a fraction (or percentage) of th…
Wireline Recording Formats
Wireline logs are a graphic representation of various tool responses with regards to depth. In order…
The Evolution of Standard Oil
A time-line chart showing the history of the companies derived from the Standard Oil&…
Freeing Stuck Pipe
The three main causes of stuck pipe are cuttings and cavings, keyseats, and differential sticking. C…