Systems and methods for facilitating effective fracture initiation
AssigneeSchlumberger Technology Corporation
InventorDean Michael Willberg
Life of this patent
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Abstract
Systems and methods presented herein are configured to facilitate effective fracture initiation. For example, a method includes deploying a tool string into a wellbore extending through a subterranean formation, wherein the tool string comprises a perforating tool and a mechanical reactant delivery assembly; releasing a plurality of chemical reactants from the mechanical reactant delivery assembly while the tool string is deployed within the wellbore to enable the plurality of chemical reactants to mix to form a breakdown fluid; and firing one or more explosive charges of the perforating tool to inject the breakdown fluid into the subterranean formation to initiate one or more fractures in the subterranean formation.
Claims11
A method comprising:
- deploying a tool string into a wellbore extending through a subterranean formation, wherein the tool string comprises a perforating tool and a mechanical reactant delivery assembly;
- releasing a plurality of chemical reactants from the mechanical reactant delivery assembly while the tool string is deployed within the wellbore to enable the plurality of chemical reactants to mix to form a breakdown fluid;
- firing one or more explosive charges of the perforating tool to inject the breakdown fluid into the subterranean formation to initiate one or more fractures in the subterranean formation;
- and
- pumping a follow-up fluid into the subterranean formation subsequent to injecting the breakdown fluid into the subterranean formation,
- wherein the breakdown fluid is configured to produce a gel having a viscosity higher than the follow-up fluid, and
- wherein the follow-up fluid comprises a crosslinking agent configured to continue to gel the breakdown fluid in the subterranean formation.
Dependencies are inferred from the claim text.