Method for construction and completion of injection wells
AssigneeBaker Hughes Incorporated
InventorMichael Johnson
Life of this patent
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Abstract
A method for well construction and completion is disclosed. Generally the method comprises the steps of 1) drilling through an injection zone, 2) positioning an extendable permeable element on the casing capable of stopping formation material from entering the well bore, 3) positioning the casing such that the extendable elements are aligned with the injection zone, 4) extending the member such that they come into direct contact with the injection zone formation, 5) running tubing/completion equipment, and 6) begin injecting the desired fluids into the well. Thus eliminating the need to perforate and gravel pack the well while improving reliability of the injection well completion.
Claims19
A method of injection well construction and completion comprising:
- drilling a borehole through an injection zone of a formation;
- running, into the borehole, casing including an extendable assembly comprising a fixed portion and a moveable portion having a filter media at its distal end so that the extendable assembly is positioned adjacent a site in the injection zone;
- extending the moveable portion of the extendable assembly to contact the formation forming a conduit between an interior of the casing and the formation;
- and
- injecting fluids into the well through the conduit.
A method of injection well construction and completion comprising:
- drilling the well with a conventional drilling fluid to a point above a target injection zone;
- displacing the conventional drilling fluid with a ”Drill-In Fluid;”
- drilling the remaining borehole through injection zone;
- running, into the borehole, casing including an extendable assembly comprising a fixed portion and a moveable portion having a filter media at its distal end so that the extendable assembly is positioned adjacent a site in the injection zone;
- extending the moveable portion of the extendable assembly to contact the formation forming a conduit between an interior of the casing and the formation;
- and
- injecting fluids into the well through the conduit.
An injection completion system comprising:
- a well borehole extended into and through an injection zone of a productive formation,
- a casing run into the borehole and including an extendable assembly comprising a fixed portion and a moveable portion having a filter media at its distal end so that the extendable assembly is positioned adjacent a site in the injection zone extended into the site of the injection zone forming a conduit from an interior of the casing to the formation,
- well completion tubing and equipment, and
- a fluid system for injecting a fluid into the formation through the casing and out the conduits.
Dependencies are inferred from the claim text.