Method of repairing a wellbore liner for sand control

Patent · Tue Oct 13 00:00:00 EDT 1992

OSTI ID:6965117

Dees, J M

This patent describes a method of repairing a damaged wellbore liner for controlling sand and other fine materials. It comprises: positioning a quantity of fluid resin material in alignment with the portion of the wellbore liner to be repaired; positioning a gas generator in proximity with the fluid resin material; actuating the gas generator to increase wellbore pressure in a substantially instantaneous manner to a pressure substantially in excess of well pressure to force the fluid resin material from the wellbore into the damaged area of the wellbore liner; and subsequently polymerizing the resin material to form a consolidated, porous permeable matrix that allows the flow of production fluid into the well while preventing the flow of sand, or other fine materials into the well through the previously damaged area of the wellbore liner.

• Assignee: Oryx Energy Co., Dallas, TX (United States)
• Patent Number(s): US5154230; A
• Application Number: PPN: US 7-808866
• OSTI ID: 6965117
• Resource Relation: Patent File Date: 17 Dec 1991
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
42 ENGINEERING
OIL WELLS
LINERS
WELL COMPLETION
RESINS
POLYMERIZATION
SAND
CONTROL SYSTEMS
FLUID FLOW
FORMATION DAMAGE
POSITIONING
REPAIR
CHEMICAL REACTIONS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
POLYMERS
WELLS
020300* - Petroleum- Drilling & Production
422000 - Engineering- Mining & Underground Engineering- (1980-)