Some of the E.A.A.F.'s most compelling conclusions came from ballistics studies: the group found wide discrepancies between the accounts given by detained Guerreros Unidos gang members about the kinds of weapons they used to kill the students, and the number, calibres, and types of shell casings and bullets recovered from the dump.
There are five types of casing to be used in gas well completion in the longwall mining areas.
In this research, we need to utilize the four types of casing for the design and to add an intermediate casing serving as a coal protection casing.
To determine all types of casing's sizes applied in a well, one needs to start from the smallest casing string to be run in a hole.
Three types of casing pipe have been recommended for safe drilling namely conductor, intermediate and production with casing seat depth at 1320, 8500 and 12500 ft, respectively.
Those grade and strength data are put into the model in terms of the charts corresponding to different types of casing.
We assess the error in hypothetical stratified formations by numerical sensitivity analysis, and propose an effective method for compensation by incorporating two types of casing configuration (piezometer and tube).
The idea is that, when a soldier in a tank needs to shit, they would do it into a special type of shell casing which contains enough room for their poo, as well as an explosive charge.
Around that same time, a BP document shows, company officials chose a type of casing with a greater risk of collapsing.
Using a different type of casing would have provided two barriers, according to the document, which was provided to The New York Times by a Congressional investigator.
