Write a report on the procedures of proppant conductivity testing and its implications on the oil industry.  Not in order, but talk about the importance of proppants in the oil industry, what they are used for, the basics of testing, how testing changed, why, the benefits, the problems, future testing, etc. Cite using APA and here are some papers that may help.

The File RP61 is the old procedure and it got replaced by RP19C one.

Site some other sources online.