دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: A kind of device. When downhole instrument is lifted through wellbore, the wall is scaned by impulsive sonar with dense spiral. The picture of wall can be produced by converting echo of TV screen. The picture can disclose split and cavern.

a sonic caliper, developed in the late 1960’s, which generated a sonar picture of the wellbore.

n: The cutting tool for cutting core down.

n: The job of packing cave or split to overcome leakaging with concretionary material.

n: this tool is used in two-piece dual hanging tools with the same outer diameter

n: the tool is joined by screws and used in dual completion

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: pressure above which cause formation become to fracture in order to generate split.




the pressure necessary to start a fracture from the wellbore.

n: a two-piece master bushing that has a jointed, swinging device (a hinge) on each half into which large pins fit to hold the bushing together. A two-piece insert bowl to hold the slips fits inside this type of master ooshing. Compare solid master bushing, split master bushing. See also insert bowl, master bushing, slips. In.B abbr: hydrophilic-lipophilic balance.

an inflatable packer with a soft rubber shell. It is inflated in an interval and then deflated;the rubber shell is a reverse cast of the imperfections in the well. Used to confirm split pipe or perforation density.