دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

the inside annulus;tubing-by-production casing annulus. (Note, there may be regional differences in the A, B, C annulus designations and some are reversed. Inside annuli (IA) and outside annuli (OA) are more universally descriptive.)

v: to cease producing oil and gas from a well when it becomes unprofitable or to cease further work on a newly drilled well when it proves not to contain profitable quantities of oil or gas. Several steps are involved: part of the casing may be removed and salvaged;one or more cement plugs are placed in the borehole to prevent migration of fluids between the different formations penetrated by the borehole;and the well is abandoned. In most oil-producing states, it is necessary to secure permission from official agencies before a well may be abandoned.

to cease efforts to produce or inject fluids in a wells and to plug the well sufficiently to protect the environment and the ability to redrill and develop other reserves at a later date.

n: The abnormal pressure per meter in depth, usually express as MPa/m. It is the reference
of density of the mud and the procedure of the casing design.

n pl: the characteristic patterns for various degrees of cement bonding between the casing and the borehole that appear on an oscilloscope display when a sonic cement bond log is made.

n: a joint to connect blowout preventers of different sizes or pressure ratings to the casing head.

n: A joint used to connect BOPs with different sizes or working pressures and casing head.

n: The phenomenon that nature gas enters into another formation or overflow the surface through circline cement mantle between casing and formation.

n: fluid pressure in an annular space, as around tubing within casing.

pressure in an annular area. May be a vented or trapped annuli.

n: production of formation fluids through the production casing annulus.

n: the space between two concentric circles. In the petroleum industry, it is usually the space surrounding a pipe in the wellbore, or the space between tubing and casing, or the space between tubing and the well bore;sometimes termed the annulus.

n: The space between a pipe and a hole. The space between drillstring and hole or casing is an Annulus.

n: see annular space.

n: The space between a pipe and a hole. The space between drillstring and hole or casing is an Annulus.

The area between the O.D. of an inside string and the ID of an outside string.