Methods of Controlling Water Production in Horizontal Wells with Multistage Fractures

Patent metadata

Field	Value
Publication number	US-2016273327-A1
Application number	US-201514659750-A
Country	US
Kind code	A1
Filing date	Mar 17, 2015
Priority date	Mar 17, 2015
Publication date	Sep 22, 2016
Grant date	—

Abstract

A method for controlling water passage from an interval undergoing hydraulic fracturing to another interval in the same or a different well bore. The method introduces a relative permeability modifier at a pressure sufficient to create or enhance at least one fracture and fracture face in the subterranean formation surrounding the interval during fracturing. The method can reduce the water passage between two or more intervals of a well bore and between two or more well bores. The method can reduce the amount of water produced from a well, which reduces the processing necessary to remove water from the hydrocarbons produced from the well.

First claim

1 . A method of reducing water permeability of two or more intervals in a well bore during hydraulic fracturing, comprising:
isolating a first interval in the well bore; introducing a first treatment fluid into the first interval penetrating a first subterranean formation at a first pressure sufficient to create or enhance at least one fracture and fracture face in the first interval, wherein the first treatment fluid comprises a first aqueous fluid and a first relative permeability modifier; allowing the first treatment fluid to penetrate the first subterranean formation along the at least one fracture and fracture face of the first interval; and introducing a first proppant composition into the first interval and the at least one fracture in the first interval, the first proppant composition comprising a first proppant and a first carrier fluid; isolating a second interval in the well bore; introducing a second treatment fluid into the second interval penetrating a second subterranean formation at a second pressure sufficient to create or enhance at least one fracture and fracture face in the second interval, wherein the second treatment fluid comprises a second aqueous fluid and a second relative permeability modifier; allowing the second treatment fluid to penetrate the second subterranean formation along the at least one fracture and fracture face of the second interval; and introducing a second proppant composition into the second interval and the at least one fracture in the second interval, the second proppant composition comprising a second proppant and a second carrier fluid.

2 . The method of claim 1 , further comprising repeating each step for three or more intervals in the well bore.

3 . The method of claim 1 , wherein the first relative permeability and second relative permeability modifier each independently have a molecular weight of from about 100,000 Daltons to about 10,000,000 Daltons;
wherein the first and second relative permeability modifier each independently comprise a polymer backbone and a hydrophobic branch, the polymer backbone comprising polar heteroatoms, the hydrophobic branch comprising an organic acid derivative selected from the group consisting of: an anhydride of octenyl succinic acid, an ester of octenyl succinic acid, an amide of octenyl succinic acid, an anhydride of dodecenyl succinic acid, an ester of dodecenyl succinic acid, and an amide of dodecenyl succinic acid.

4 . The method of claim 1 , wherein the first relative permeability modifier is present in the first treatment fluid in a first amount of from about 0.05% to about 2% weight by volume of the first treatment fluid, and
wherein the second relative permeability modifier is present in the second treatment fluid in a second amount of from about 0.05% to about 2% weight by volume of the second treatment fluid.

5 . The method of claim 1 , wherein the first treatment fluid and the second treatment fluid each independently further comprise at least one gelling agent.

6 . The method of claim 1 , wherein a distance between the first interval and the second interval is from about 15 meters to about 180 meters.

7 . A method of reducing water permeability of a first and second well bore during hydraulic fracturing, comprising:
isolating each of first intervals in a first well bore; introducing a first treatment fluid into each of the first intervals penetrating a first subterranean formation at a first pressure sufficient to create or enhance at least one fracture and fracture face in at least one of the first intervals, wherein the first treatment fluid comprises a first aqueous fluid; and introducing a first proppant composition into each of the first intervals and the at least one fracture in at least one of the first intervals, the first proppant composition comprising a first proppant and a first carrier fluid; isolating each of second intervals in a second well bore; introducing a second treatment fluid into each of the second intervals penetrating a second subterranean formation at a second pressure sufficient to create or enhance at least one fracture and fracture face in at least one of the second intervals, wherein the second treatment fluid comprises a second aqueous fluid; and introducing a second proppant composition into each of the second intervals and the at least one fracture in at least one of the second intervals, the second proppant composition comprising a second proppant and a second carrier fluid, wherein the first treatment fluid comprises a first relative permeability modifier, or the second treatment fluid comprises a second relative permeability modifier, or the first treatment fluid comprises a first relative permeability modifier and the second treatment fluid comprises a second relative permeability modifier.

8 . The method of claim 7 , wherein the first treatment fluid comprises a first relative permeability modifier.

9 . The method of claim 7 , wherein the second treatment fluid comprises a second relative permeability modifier.

10 . The method of claim 7 , wherein the first treatment fluid comprises a first relative permeability modifier and the second treatment fluid comprises a second relative permeability modifier.

11 . The method of claim 7 , further comprising repeating each step for three or more intervals in at least one of the first and second well bore.

12 . The method of claim 7 , wherein the first and second relative permeability modifier each independently have a molecular weight of from about 100,000 Daltons to about 10,000,000 Daltons; and
wherein the first and second relative permeability modifier each independently comprise a polymer backbone and a hydrophobic branch, the polymer backbone comprising polar heteroatoms, the hydrophobic branch comprising an organic acid derivative selected from the group consisting of: an anhydride of octenyl succinic acid, an ester of octenyl succinic acid, an amide of octenyl succinic acid, an anhydride of dodecenyl succinic acid, an ester of dodecenyl succinic acid, and an amide of dodecenyl succinic acid.

13 . The method of claim 7 , wherein the first relative permeability modifier is present in the first treatment fluid in a first amount of from about 0.05% to about 2% weight by volume of the first treatment fluid, and
wherein the second relative permeability modifier is present in the second treatment fluid in a second amount of from about 0.05% to about 2% weight by volume of the second treatment fluid.

14 . The method of claim 7 , wherein the first treatment fluid and the second treatment fluid each independently further comprise at least one gelling agent.

15 . The method of claim 7 , wherein a distance between the first well bore and the second well bore is from about 100 meters to about 5,000 meters.

16 . The method of claim 7 , wherein a distance between the first well bore and the second well bore is from about 50 meters to about 1,000 meters.

Assignees

• Halliburton Energy Services Inc

Inventors

• Nguyen Philip D
• Martysevich Vladimir Nikolayevich
• Palla-Venkata Chandra Sekhar

Classifications

• E21B43/267 Primary

  reinforcing fractures by propping · CPC title

• C09K8/80

  Compositions for reinforcing fractures, e.g. compositions of proppants used to keep the fractures open · CPC title

• C09K8/665

  containing inorganic compounds (proppants C09K8/80) · CPC title

• E21B43/26 Primary

  by forming crevices or fractures · CPC title