دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a phenomenon that sometimes occurs when a well blows out. Rocks, sand, clay, and other debris clog the hole and stop the blowout.

n: The wellbore blinding due to borehole wall sloughing.

n: the collapse of the walls of the wellbore.

n: A severe form of sloughing (See also Sloughing).

n: collapsing of the walls of the wellbore. Also called sloughing.

n: Collapse of the walls of the borehole. Also referred to as sloughing.

collapse of part of the formation into the wellbore during drilling or completions.

n: the factors leading stuck are as follow:(1)the cuttings not being cleared (2).borehole wall sloughing (3) wellbore
leaking (4) key slot or pressure difference

n: a break in the earths crust along which rocks on one side have been displaced (upward, downward, or laterally) relative to those on the other side.

n: Geological term denoting a formation break, upward or downward, in the subsurface strata. Faults can significantly affect the drilling fluid and casing programs due to possibilities for lost circulation, sloughing hole, or kicks.

where rock splits or ruptures with associated movement occurs on either side.

n: the first casing or conductor string (generally with a diameter of 30 to 36 inches-76 to 91 centimetres) set when drilling a well from a floating offshore drilling rig. It prevents sloughing of the ocean-floor formations and is a structural support for the permanent guide base and the blowout preventers.

n: a kind of shale formation and a kind of sloughing formation with low cementation force

n: the partial or complete collapse of the walls of a hole resulting from internal pressures due primarily to swelling from hydration or formation gas pressures. See caving.

n: the partial or complete collapse of the walls of a hole resulting from internal pressure due primarily to swelling from hydration or formation gas pressure. See also sloughing.

partial or full collapse of the wellbore by particles of shale.

n: the drilling tools cant be lowed to the bottom of well because of hole sloughing