The subsurface safety valve is recently tested and the result is good. Personnel can just only shut the well in using a subsurface safety valve without installing a back pressure valve and then remove the x-mas tree.

15 bbl/hr of partial losses are recorded and there is no tubing in the well. If personnel fails to keep the hole full for 5 hours, what is bottom hole pressure reduction after 5 hours if the casing capacity is 0.035 bbl/ft and the current mud weight is 9.2 ppg?

What is the objective of the volumetric well control?

Personnel observes that the annulus pressure on a producing well increases from 0 psi to 300 psi. The well has the packer set to isolate annuls. What does this indicator tell you?

With gas migration in a shut-in well, which one does not increase?

Which of the following method can be used as remedial measures for plugged perforation?

As long as the fluid weight is more than formation pressure, you can use solid free brine to control the well which has high permeable zones.

A normal annular preventer will seal pressure on the dual string completion when closed.

Which of the following is a fabricated material used for the construction of a fermentation vessel?

Which of the following has a very high thermal conductivity?

Which of the following is not used in the construction of a fermentation vessel?