Downhole material injector for lost circulation control

Patent · Tue Sep 06 00:00:00 EDT 1994

OSTI ID:7242270

Glowka, D A

Apparatus and method are disclosed for simultaneously and separately emplacing two streams of different materials through a drill string in a borehole to a downhole location for lost circulation control. The two streams are mixed outside the drill string at the desired downhole location and harden only after mixing for control of a lost circulation zone. 6 figs.

• DOE Contract Number: AC04-76DP00789
• Assignee: Dept. of Energy, Washington, DC (United States)
• Patent Number(s): US 5343968; A
• Application Number: PPN: US 7-686442
• OSTI ID: 7242270
• Resource Relation: Patent File Date: 17 Apr 1991
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
02 PETROLEUM
LOST CIRCULATION
CONTROL
PLUGGING AGENTS
MATERIALS HANDLING
WELL INJECTION EQUIPMENT
DESIGN
WELLS
CURING
MIXING
PERFORMANCE
EQUIPMENT
FIELD PRODUCTION EQUIPMENT
422000* - Engineering- Mining & Underground Engineering- (1980-)
020300 - Petroleum- Drilling & Production