Temporary plugging agent
A temporary plugging agent, fracturing fluid and/or channel sealing agent is introduced into a selected area of a formation. The water-gelled fluid agent contains sodium borate, sodium tetraborate, and borax. It also contains a chemical breaker such as benzotrichloride, benzylidene chloride, or benzyl chloride. The water-gelled fluid consists essentially of water and from about 1-3% by weight of water of a finely powdered water-soluble gum of the galactomannan class. The borate compound is included in an amount of about 10% by weight of the gum to delay the reaction with the gel and to form a rubbery jelly-like mass with it. The fluid composition has a delaying solidifying action and after a given interval of time it forms a plug. After a predetermined time, acid is produced upon the hydrolysis of the breaker in the plug and removes the plug from the area.
- Assignee:
- Halliburton Co.
- Patent Number(s):
- US 3227212
- OSTI ID:
- 6673640
- Resource Relation:
- Patent File Date: Filed date 19 Jun 1961
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
OIL WELLS
PLUGGING
BORATES
BORAX
GELS
PETROLEUM
SEALING MATERIALS
SODIUM COMPOUNDS
WATER
WELL STIMULATION
ALKALI METAL COMPOUNDS
BORON COMPOUNDS
COLLOIDS
DISPERSIONS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROGEN COMPOUNDS
MATERIALS
OXYGEN COMPOUNDS
STIMULATION
WELLS
020300* - Petroleum- Drilling & Production