Wells – Processes – Cementing – plugging or consolidating
Patent
1993-01-19
1994-05-24
Suchfield, George A.
Wells
Processes
Cementing, plugging or consolidating
166278, 405264, 523130, E21B 33138
Patent
active
053140230
ABSTRACT:
Method for selectively treating wells using a low viscosity epoxy resin-forming composition containing a single curing agent. The composition comprises a liquid bisphenol A-based epoxy material and a polyamide hardener for ambient temperature curing of the liquid epoxy material. The epoxy material has a very low viscosity at well surface temperatures and is immiscible with well fluids. The polyamide curing agent used is an amber-colored mobile liquid having a low viscosity at ambient temperature and is further characterized as having long pot life and low exotherm. The method is applicable to plugging permeable zones in a gravel-packed well and may be used to repair leaks in well casing or production tubing and in cementing to prevent communication between subterranean regions.
REFERENCES:
patent: 3933204 (1976-01-01), Knapp
patent: 4042031 (1977-08-01), Knapp
patent: 4072194 (1978-02-01), Cole et al.
patent: 4074760 (1978-02-01), Copeland
patent: 4921047 (1990-05-01), Summers et al.
patent: 4972906 (1990-11-01), McDaniel
patent: 5090478 (1992-02-01), Summers
Dartez Terry R.
Jones Roy K.
Litman Richard C.
Suchfield George A.
LandOfFree
Method for selectively treating wells with a low viscosity epoxy does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for selectively treating wells with a low viscosity epoxy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for selectively treating wells with a low viscosity epoxy will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1966830