Chemical packer composition and methods of using same for isolation of water/gas zones
AssigneeHalliburton Energy Services, Inc.
InventorsVictor Daniel Escobar, Larry Steven Eoff, Jacob Wayne Laufer
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Abstract
A method of treating a subterranean formation penetrated by a wellbore, comprising introducing a chemical packer composition into the wellbore, wherein the chemical packer composition comprises water, a suspending agent, a gelling agent, and a sealant composition and wherein the chemical packer composition has a pH greater than 9, and allowing the chemical packer composition to form a plug, wherein a portion of the wellbore below the plug is isolated from fluid communication with a portion of the wellbore above the plug.
Claims26
A method of treating a subterranean formation penetrated by a wellbore, comprising:
- placing a tubular having an outlet into a non-vertical portion of the wellbore, wherein the tubular provides a flow path from the surface to the outlet;
- introducing a chemical packer composition into a non-vertical portion of the wellbore via the tubular outlet, wherein the chemical packer composition comprises water, a suspending agent, a gelling agent, and a sealant composition and wherein the chemical packer composition has a pH greater than 9, wherein the chemical packer maintains contact with a 360° surface of the non-vertical portion of the wellbore;
- and
- allowing the chemical packer composition to form a plug, wherein a portion of the wellbore below the plug is isolated from fluid communication via the wellbore with a portion of the wellbore above the plug.
A method of treating a subterranean formation penetrated by a wellbore, comprising:
- introducing a chemical packer composition into the wellbore, wherein the chemical packer composition comprises water, a suspending agent, a gelling agent, and a first sealant composition and wherein the chemical packer composition has a pH greater than 9;
- allowing the chemical packer composition to form a plug, wherein a first portion of the wellbore below the plug is isolated from fluid communication with a second portion of the wellbore above the plug;
- penetrating the plug with a conduit;
- and
- flowing a treatment fluid from the conduit into the first portion of the wellbore.
A method of treating a subterranean formation penetrated by a wellbore, comprising:
- introducing a first amount of a chemical packer composition into the wellbore at a first location that is below a treatment interval in the wellbore, wherein the chemical packer composition comprises water, a suspending agent, a gelling agent, and a sealant composition and wherein the chemical packer composition has a pH greater than 9;
- introducing an amount of a treatment fluid into the wellbore at a second location that is above the first amount of the chemical packer composition and proximate the treatment interval;
- introducing a second amount of the chemical packer composition into the wellbore at a third location that is above the treatment fluid and above the treatment interval;
- and
- applying pressure to the wellbore to squeeze the treatment fluid into one or more flow paths present within the treatment interval, wherein the one or more flow paths provide fluid communication between the treatment interval of the wellbore and the subterranean formation.
Dependencies are inferred from the claim text.