Apparatus and method for positioning of a fluidized plugging material in an oil well or gas well

摘要

An apparatus and a method are for supplying a fluidized plugging material to a well. The apparatus includes: a carrier body defined by an indefinite side portion extending between a first end portion and a second end portion, the carrier body being arranged to be set in motion by a driving device; and at least one displacement member arranged on the carrier body, the displacement member being defined by the surface of the carrier body and a free end portion facing the inside of the casing, and the driving device being arranged to set the carrier body and the displacement member in motion in the bore of the casing, so that the fluidized plugging material is set in motion within the bore of the casing.

主权项

1. A method of providing a permanent or temporary plug in a casing in a well, wherein the plug is provided by means of a fluidized plugging material which is carried into the well from a surface of the well, wherein the method comprises:
using an apparatus for positioning the fluidized plugging material in the well, the apparatus comprising:
a carrier body defined by an endless side portion extending between a first end portion and a second end portion;at least one displacement member arranged on the carrier body, wherein the displacement member is defined by a surface of the carrier body and a free end portion facing outwards from the carrier body, whereby the free end portion will face an inside of the casing when placed therein; anda driving device connected to the carrier body for allowing the carrier body and the at least one displacement member to be set in motion in the casing; moving the apparatus into the casing in the well; activating the driving device and thus setting the apparatus in motion in the casing and supplying the fluidized plugging material from the surface of the well, thereby setting the fluidized plugging material in motion in the casing; continuing moving the apparatus for a predetermined time after having supplied all of the plugging material; and pulling the apparatus out of the well, whereby the apparatus is retrievable from the well.