Method and device for cleaning control particles in a wellbore
AssigneeBlue Spark Energy Inc.
InventorsTodd Parker, Shawn Carroll, Dan Skibinski
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Abstract
The invention concerns a method for cleaning control particles in a wellbore of a subterranean formation to improve the recovery of formation fluids and/or gases, said wellbore comprising a wall defining a borehole, at least one control equipment arranged into said borehole and a plurality of control particles arranged between said control equipment and said wall, said method comprising the steps of generating at least one shock wave nearby said control equipment and propagating said at least one shock wave through said control equipment toward said control particles for cleaning said control particles.
Claims15
A shock wave generating device for cleaning control particles in a wellbore of a subterranean formation to improve the recovery of formation fluids and/or gases, said wellbore comprising a wall defining a borehole, at least one control equipment arranged into said borehole and a plurality of control particles arranged between said control equipment and said wall, said shock wave generating device comprising:
- a chamber defined at least in part by a membrane, said chamber being partially filled with a shock wave transmitting liquid and which is adapted to be arranged into said borehole nearby said control equipment, said membrane is sized and shaped to isolate said shock wave transmitting liquid from external fluids during repeated use of the shock wave generating device;
- and
- an electrical discharge unit comprising a first electrode and a second electrode located in said chamber, said electrical discharge unit configured for generating at least one electrical discharge that propagates at least one shock wave into said shock wave transmitting liquid through said control equipment and said control particles for cleaning said control particles.
A system for cleaning control particles in a wellbore of a subterranean formation to improve the recovery of formation fluids and/or gases, said system comprising:
- the wellbore comprising a wall defining a borehole, at least one control equipment arranged in said borehole and a plurality of control particles arranged between said control equipment and said wall;
- a shock wave generation device comprising a chamber that is at least partially filled with a shock wave transmitting liquid and an electrical discharge unit for generating at least one electrical discharge that propagates at least one shock wave into said shock wave transmitting liquid through said at least one control equipment and said control particles for cleaning said control particles;
- a wireline coupled to said shock wave generation device for inserting said shock wave generation device in the borehole nearby said at least one control equipment;
- a voltage source located external of the borehole;
- and
- an electrical circuit within said wireline for connecting said voltage source to the shock wave generation device.
Dependencies are inferred from the claim text.