Fluid additive and method for treatment of subterranean formations
This patent describes a method of performing a fracturing treatment on a subterranean formation and removing polysaccharide absorbed by clay formation. It comprises: injecting an aqueous fracturing fluid viscosified with a solvatable polysaccharide gelling agent into a subterranean formation containing clay at a rate and pressure sufficient to create at least one fracture in the formation; and contacting the formation contacted by the fracturing fluid with an aqueous treatment fluid containing a fluid additive comprising at least one member selected from the group consisting of tetraalkylammonium halides. The alkyl group is selected from methyl, ethyl, propyl and butyl radicals and trimethylammonium halidies; the fluid additive is present in an amount sufficient to remove at least a portion of any polysaccharide absorbed from the fracturing fluid by the clay.
- Assignee:
- Halliburton Co., Duncan, OK (USA)
- Patent Number(s):
- US 4974687; A
- Application Number:
- PPN: US 7-525212
- OSTI ID:
- 5212905
- Resource Relation:
- Patent File Date: 15 May 1990
- Country of Publication:
- United States
- Language:
- English
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Fluid additive and method for treatment of subterranean formations
Fracturing of subterranean formations
Related Subjects
03 NATURAL GAS
FRACTURING FLUIDS
CHEMICAL COMPOSITION
NATURAL GAS WELLS
HYDRAULIC FRACTURING
OIL WELLS
AMMONIUM HALIDES
AQUEOUS SOLUTIONS
POLYSACCHARIDES
REMOVAL
WELL STIMULATION
AMMONIUM COMPOUNDS
CARBOHYDRATES
COMMINUTION
DISPERSIONS
FLUIDS
FRACTURING
HALIDES
HALOGEN COMPOUNDS
MIXTURES
ORGANIC COMPOUNDS
SACCHARIDES
SOLUTIONS
STIMULATION
WELLS
020300* - Petroleum- Drilling & Production
030300 - Natural Gas- Drilling
Production
& Processing