Sand consolidation methods
Abstract
Methods are provided for selectively consolidating sand grains within a subterranean formation. First an acidic salt catalyst such as ZnCl/sub 2/ is injected into the subterranean formation, wherein the acidic salt catalyst is adsorbed to the surface of the sand grains. Next a polymerizable resin composition such as furfuryl alcohol oligomer is introduced into the well formation. Polymerization of the resin occurs upon exposure to the elevated well temperatures and contact with the acid salt catalyst adsorbed to the sand grains. The polymerized resin serves to consolidate the surfaces of the sand grains while retaining permeability through the pore spaces. An ester of a weak organic acid is included with the resin compositions to control the extent of a polymerization by consuming the water by-product formed druing the polymerization reaction.
- Inventors:
- Publication Date:
- OSTI Identifier:
- 6841066
- Patent Number(s):
- US 4427069
- Assignee:
- Getty Oil Co.
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: Filed date 8 Jun 1981; Other Information: PAT-APPL-271426
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 02 PETROLEUM; 03 NATURAL GAS; NATURAL GAS WELLS; ACIDIZATION; SAND CONSOLIDATION; OIL WELLS; RESERVOIR ROCK; MICROSTRUCTURE; POROSITY; ZINC CHLORIDES; CATALYTIC EFFECTS; ALCOHOLS; CHEMICAL COMPOSITION; CHEMICAL REACTIONS; FURFURAL; POLYMERIZATION; RESINS; SAND; WELL TEMPERATURE; ALDEHYDES; CHLORIDES; CHLORINE COMPOUNDS; CRYSTAL STRUCTURE; FURANS; HALIDES; HALOGEN COMPOUNDS; HETEROCYCLIC COMPOUNDS; HYDROXY COMPOUNDS; ORGANIC COMPOUNDS; ORGANIC OXYGEN COMPOUNDS; ORGANIC POLYMERS; PETROCHEMICALS; PETROLEUM PRODUCTS; POLYMERS; RESERVOIR TEMPERATURE; WELLS; ZINC COMPOUNDS; ZINC HALIDES; 020300* - Petroleum- Drilling & Production; 030900 - Natural Gas- Artificial Stimulation, Plowshare- (-1989)
Citation Formats
Friedman, R H. Sand consolidation methods. United States: N. p., 1984.
Web.
Friedman, R H. Sand consolidation methods. United States.
Friedman, R H. 1984.
"Sand consolidation methods". United States.
@article{osti_6841066,
title = {Sand consolidation methods},
author = {Friedman, R H},
abstractNote = {Methods are provided for selectively consolidating sand grains within a subterranean formation. First an acidic salt catalyst such as ZnCl/sub 2/ is injected into the subterranean formation, wherein the acidic salt catalyst is adsorbed to the surface of the sand grains. Next a polymerizable resin composition such as furfuryl alcohol oligomer is introduced into the well formation. Polymerization of the resin occurs upon exposure to the elevated well temperatures and contact with the acid salt catalyst adsorbed to the sand grains. The polymerized resin serves to consolidate the surfaces of the sand grains while retaining permeability through the pore spaces. An ester of a weak organic acid is included with the resin compositions to control the extent of a polymerization by consuming the water by-product formed druing the polymerization reaction.},
doi = {},
url = {https://www.osti.gov/biblio/6841066},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 24 00:00:00 EST 1984},
month = {Tue Jan 24 00:00:00 EST 1984}
}