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US 2014/0151043 A1Published application
Stabilized fluids in well treatment
AssigneeSchlumberger Technology Corporation
InventorsMatthew J. Miller, John R. Whitsitt, James Ernest Brown
Life of this patent
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Abstract
Using stabilized fluids in multistage well treatment is disclosed. Also disclosed are methods, fluids, equipment and/or systems for treating a subterranean formation penetrated by a wellbore, relating to a stabilized treatment slurry.
Claims20
A method, comprising:
- placing a downhole completion staging system tool in a wellbore adjacent a subterranean formation;
- operating the downhole completion staging system tool to establish one or more passages for fluid communication between the wellbore and the subterranean formation in a plurality of wellbore stages spaced along the wellbore;
- isolating one of the wellbore stages for treatment;
- injecting a stabilized slurry treatment fluid through the wellbore and the one or more passages of the isolated wellbore stage into the subterranean formation to place proppant in a fracture in the subterranean formation;
- and
- repeating the isolation and proppant placement for one or more additional stages.
3 more elements
A method, comprising:
- placing a downhole completion staging tool in a wellbore adjacent a subterranean formation;
- operating the downhole completion staging tool to establish one or more passages for fluid communication between the wellbore and the subterranean formation in a plurality of wellbore stages spaced along the wellbore;
- isolating one or more of the wellbore stages for treatment;
- isolating one or more of the wellbore stages for treatment;
- injecting a treatment fluid through the wellbore and the one or more passages of the isolated wellbore stage into the subterranean formation to place proppant in a fracture in the subterranean formation;
- circulating a stabilized slurry treatment fluid through the isolated wellbore stage to facilitate removal of proppant from the wellbore stage;
- and
- repeating the isolation, proppant placement and slurry treatment fluid circulation for one or more additional stages.
5 more elements
A method, comprising:
- placing a downhole completion staging tool in a wellbore adjacent a subterranean formation;
- operating the downhole completion staging tool to establish one or more passages for fluid communication between the wellbore and the subterranean formation in a plurality of wellbore stages spaced along the wellbore;
- injecting a treatment fluid through the wellbore and the one or more passages into the subterranean formation to place proppant in a fracture in the subterranean formation;
- moving the downhole completion staging tool away from the one or more passages either before, during or after the injection without removing the downhole completion staging tool from the wellbore;
- deploying a diversion agent to block further flow through the one or more passages;
- circulating a stabilized slurry treatment fluid through the wellbore as the injected treatment fluid or as a flush to facilitate removal of proppant from the wellbore;
- and
- repeating the downhole completion staging tool placement and operation, proppant placement, downhole completion staging tool movement and stabilized slurry treatment circulation for one or more additional stages.
5 more elements
Dependencies are inferred from the claim text.