دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

a patented screen design that allows gravel packing slurry to flow past an annular bridge point that would normally stop the placement of gravel.

the returning wave of gravel after the alpha wave when packing a well over about 55o deviation.

a section of the treating string that transfers incoming flow from inside the pipe to the annulus below the crossover, and the return flow from inside the tubing to the annulus above the crossover. Straddles a packer.

a sand control technique coupling fracture treating (usually a tip screenout fracture) with a screen and gravel packing of the wellbore.

n: a sub with a glass blockage in the bore, used to isolate a surge chamber in gravel packing or perforation cleaning operations.

often a rupture disk to allow a well to flow after it is broken by a dropped bar.

n: sand or glass beads of uniform size and roundness used in gravel packing.

large, well sorted and consistently sized sand used to hold back a soft formation.

n: a mass of very fine gravel placed around a slotted liner in a wen. See gravel packing.

n: A sand-control method used to prevent production of formation sand. In gravel pack operations, a steel screen is placed in the wellbore and the surrounding annulus packed with prepared gravel of a specific size designed to prevent the passage of formation

a sand control completion that uses a larger gravel to stop the formation sand and a screen to stop the gravel.

n: a method of well completion in which a slotted or perforated liner, often wire-wrapped, is placed in the well and surrounded by gravel. If open hole, the well is sometimes enlarged by underreaming at the point where the gravel is packed. The mass of gravel excludes sand from the wellbore rot allows continued production.

v: to place a slotted or perforated liner in a wen and surround it with gravel. See gravel packing.

n: a packer used for the well completion method of gravel packing.

n: a kind of packer used for copletion with gravel filling