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US 2023/0416600 A1Published application
Diverting materials for well stimulation
AssigneeSaudi Arabian Oil Company
InventorsWenwen Li, Fakuen Frank Chang, Nam Mai
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Abstract
Compositions containing a diverting material, and related methods and systems for diverting a fluid from a high permeability zone in an underground formation to a low permeability zone in the underground formation. The diverter material contains a polyurethane and a second polymer. The compositions, methods and systems may be used to achieve more homogeneous stimulation during a well stimulation treatment.
Claims20
A method, comprising:
- using a diverter material to block at least a portion of a high permeability zone in an underground formation,
- wherein the diverter material comprises a polyurethane and a second polymer;
- and
- wherein the diverter material comprises at least one member selected from the group consisting of:
- particles comprising a core and a shell, the core comprising the polyurethane, and the shell comprising the second polymer;
- particles comprising the polyurethane and the second polymer, the polyurethane being distributed within the second polymer;
- and
- a blend comprising the polyurethane and the second polymer.
5 more elements
(canceled)
A system, comprising:
- a diverter material;
- and
- a fluid,
- wherein:
- the diverter material is disposed in a high permeability zone of an underground formation so that the diverter material blocks at least a portion of the high permeability zone;
- the diverter material comprises a polyurethane and a second polymer;
- and
- the diverter material comprises at least one member selected from the group consisting of:
- particles comprising a core and a shell, the core comprising the polyurethane, and the shell comprising the second polymer;
- particles comprising the polyurethane and the second polymer, the polyurethane being distributed within the second polymer;
- and
- a blend comprising the polyurethane and the second polymer.
9 more elements
Dependencies are inferred from the claim text.