Fluid additive and method for treatment of subterranean formations

Patent · Tue Dec 04 04:00:00 EST 1990

OSTI ID:5212905

Himes, R E; Simon, D E

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): A; US 4974687
• Application Number: PPN: US 7-525212
• OSTI ID: 5212905
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
AMMONIUM COMPOUNDS
AMMONIUM HALIDES
AQUEOUS SOLUTIONS
CARBOHYDRATES
CHEMICAL COMPOSITION
COMMINUTION
DISPERSIONS
FLUIDS
FRACTURING
FRACTURING FLUIDS
HALIDES
HALOGEN COMPOUNDS
HYDRAULIC FRACTURING
MIXTURES
NATURAL GAS WELLS
OIL WELLS
ORGANIC COMPOUNDS
POLYSACCHARIDES
REMOVAL
SACCHARIDES
SOLUTIONS
STIMULATION
WELL STIMULATION
WELLS