Casing wear is an increasingly typical problem that leads to a decrease in collapse resistance in deep wells, ultradeep wells, horizontal wells, and extended reach wells. Casing wear is an ...

For example the formula of ethane is C 2 H 6. The ratio of C:H atoms is 2:6. The empirical formula of an alkane is based on the simplest ratio of carbon to hydrogen atoms: the simplest form of the C:H ...