
41
B
Benzoic Acid Flakes
formations of low permeability that, although recognized, were passed
through because they were uneconomical to produce at the time. Today,
however, with the growing scarcity of oil and its high prices, many of these
passed-through formations are getting a second look by producers.
Belching: Flowing slugs of material.
Bell Nipple: A funnel-shaped pipe at the top of the casing that guides tool-
string entry and may have a side port for uid pumping.
Below Rotary Time (Drilling): A time that reects the slide time in which
the pipe is not rotating and drilling.
Belt: A exible band or cord connecting and w