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US 7,441,598 B2Granted
Methods of stabilizing unconsolidated subterranean formations
AssigneeHalliburton Energy Services, Inc.
InventorPhilip D. Nguyen
Life of this patent
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Abstract
Methods of stabilizing unconsolidated portions of a subterranean formation are provided. In one embodiment, the methods comprise: creating or enhancing at least two slots in an unconsolidated portion of a subterranean formation along a well bore, wherein the slots are positioned about 180 degrees from each other along the inner surface of the well bore; introducing a consolidating agent into the slots in the unconsolidated portion of the subterranean formation; and creating or enhancing at least one fracture in a portion of the subterranean formation.
Claims15
A method comprising:
- creating or enhancing at least two slots in an unconsolidated portion of a subterranean formation along a well bore, wherein the slots penetrate the subterranean formation in a direction approximately parallel to the direction of maximum horizontal stress of the unconsolidated portion of the subterranean formation and are positioned about 180 degrees from each other along the inner surface of the well bore;
- introducing a consolidating agent into the slots in the unconsolidated portion of the subterranean formation, wherein the consolidating agent comprises at least one consolidating agent selected from the group consisting of:
- a tackifying agent, an aqueous crosslinkable gel composition, a gelable aqueous silicate composition, a polymerizable organic monomer composition, and any mixture thereof;
- and
- creating or enhancing at least one fracture in a portion of the subterranean formation before the consolidating agent is permitted to cure.
2 more elements
A method comprising:
- introducing a consolidating agent into at least two pre-formed slots in an unconsolidated portion of a subterranean formation along a well bore, wherein the slots penetrate the subterranean formation in a direction approximately parallel to the direction of maximum horizontal stress of the unconsolidated portion of the subterranean formation and are positioned about 180 degrees from each other along the inner surface of the well bore;
- and
- introducing a consolidating agent into the slots in the unconsolidated portion of the subterranean formation;
- wherein the consolidating agent comprises at least one consolidating agent selected from the group consisting of:
- a non-aqueous tackifying agent;
- an aqueous tackifying agent, a silyl-modified polyamide;
- a gelable aqueous silicate composition;
- and any combination thereof;
- and
- creating or enhancing at least one fracture in a portion of the subterranean formation.
7 more elements
Dependencies are inferred from the claim text.