Question

1. When an SP curve is "Negative" it is considered to be "Normal" and the relation between the drilling mud and the formation fluid agrees with which one of these equations: A. Rmf = RW B. Rmf> Rw C. Rmf < Rw 2. Which of the following is NOT included as a factor in "Petrophysical evaluation? A. Well logs B. Core measurements C. Formation pressure tests D. Fluid storage capacity 3. Which of the following is NOT a source of error or discrepancy between driller's total depth and logger's total depth? A. Mathematical error on the drillers part B. Logging tool dragging or sticking C. Inaccurate elevation for KB D. Stretch in the logging cable

Answer 1

Answer-

1. B.Rmf>Rw because here in sand the formation water is more saltier than mud filtrate .

2. D.fluid storage capacity because the petrophysical evaluations made when no core, mud log, or tester data are available.

3.C. inaccurate elevation for KB i.e.The assembly of rotating parts that goes down the hole, which is a series of drill pipe connections and drill collars, ending in a rotating bit. There may optionally be tools for logging while drilling as well. The length of all these is measured, and this gives the driller's depth at a given point in time. As more pipe is added, and the drilling deepens, this measurement will be updated.