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Title: Downhole material injector for lost circulation control

Abstract

This invention is comprised of an apparatus and method for simultaneously and separately emplacing two streams of different materials through a drillstring in a borehole to a downhole location for lost circulation control. The two streams are mixed outside the drillstring at the desired downhole location and harden only after mixing for control of a lost circulation zone.

Inventors:
Issue Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE; USDOE, Washington, DC (United States)
OSTI Identifier:
6476472
Patent Number(s):
7686442
Application Number:
ON: DE93012018; PPN: US 7-686442
Assignee:
Dept. of Energy
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B41 - PRINTING B41J - TYPEWRITERS
DOE Contract Number:  
AC04-76DP00789
Resource Type:
Patent
Resource Relation:
Patent File Date: 17 Apr 1991
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 02 PETROLEUM; 03 NATURAL GAS; 15 GEOTHERMAL ENERGY; WELL INJECTION EQUIPMENT; DESIGN; CEMENTS; GEOTHERMAL WELLS; INJECTION WELLS; INVENTIONS; LOST CIRCULATION; NATURAL GAS WELLS; OIL WELLS; BUILDING MATERIALS; EQUIPMENT; FIELD PRODUCTION EQUIPMENT; MATERIALS; WELLS; Geothermal Legacy; 422000* - Engineering- Mining & Underground Engineering- (1980-); 020300 - Petroleum- Drilling & Production; 030300 - Natural Gas- Drilling, Production, & Processing; 150901 - Geothermal Engineering- Drilling Technology & Well Hardware

Citation Formats

Glowka, D A. Downhole material injector for lost circulation control. United States: N. p., 1991. Web.
Glowka, D A. Downhole material injector for lost circulation control. United States.
Glowka, D A. Tue . "Downhole material injector for lost circulation control". United States. https://www.osti.gov/servlets/purl/6476472.
@article{osti_6476472,
title = {Downhole material injector for lost circulation control},
author = {Glowka, D A},
abstractNote = {This invention is comprised of an apparatus and method for simultaneously and separately emplacing two streams of different materials through a drillstring in a borehole to a downhole location for lost circulation control. The two streams are mixed outside the drillstring at the desired downhole location and harden only after mixing for control of a lost circulation zone.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1991},
month = {1}
}