دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

a cement squeeze that injects cement until a resistance is built.

n: an accessory to a fishing tool, placed above it. If the tool cannot be disengaged from the fish, the safety joint permits easy disengagement of the string of pipe above the safety joint Thus, part of the safety joint and the tool attached to the fish remain in the hole and become part of the fish.

n: a toolthat is often run just above a fishing tool.if the fishing tool has gripped the fish but can not pull it free, the safty jiont will allow the string to disengage by turning it from surface.

a joint above a piece of equipment that is designed to fail and allow recovery of the upper string.

n: see salt mud.

n: The water based drilling fluid that its salt content lower than 1 percent.

n: The ratio of the dissoluble inorganic salt in the drilling fluid,usually means the content of Nacl.



one of many tests that measures, either directly or indirectly, the concentration of salt in a sample of water.

n: a special nuclear well log that produces an estimate of the relative amounts of oil, gas, or salt water in a formation. This log is electronically adjusted to reflect gamma ray emissions resulting from the collision of neutrons with chlorine atoms in the formations.

a type of log that measures salinity by use of gamma ray emission measurements from collisions of neutrons with chloride ions.

n: a compound that is formed (along with water) by the reaction of an acid with abase. A common salt (table salt) is sodium chloride, Naa, derived by combining hydrochloric acid, Ha, with sodium hydroxide, NaOH. The result is sodium chloride and water, H2O. This process is written chemically as Ha + NaOH ~ NaCI + H2O. Another salt is calcium sulfate, CaS�4, obtained when sulfuric acid, H2SO4 is combined with calcium hydroxide, Ca (OH)2

specifically sodium chloride, but also may be a generic term for most water soluble salts.