Cased-Hole Logging Environment - Cased-Hole Log Analysis and Reservoir Performance Monitoring - page 14

Answers to Text Questions

Question #2.1
Cable area =

/4 × (7/32) 2 = 0.03758 sq in.
Differential pressure = 4,986 psi.

π

(a) Upward force = 4,986 × 0.03758 = 187.4 lb.
(b) Weights required = (187.4 − 20)/26 = 6.44.
(c) So use seven weights.
(d) Riser requirements = 16-ft tool + (7 × 4 ft) = 44 ft.
(e) Rig height = 10 + 44 + 10 + 6 = 70 ft.

Question #2.2
(a) The well must be shut in before tools can be run in or out of the well.
(b) No effect on ability to log well.
(c) To bleed off pressure in the riser before undoing the quick-connect riser
connection.

Question #2.3
500 B/D