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Filling bore-holes with explosive

Abstract

In this device for filling boreholes formed in a rock formation with particulate explosive, the explosive is conveyed into the hole by means of a pressure fluid through a tube which has a lesser diameter than the hole. The tube is characterized by a lattice work arranged externally on it, and having a structure adapted to allow passage of a pressure fluid returning between the tube and the wall of the hole, but retaining particles of explosive entrained by the returning pressure fluid. In another arrangement of the device, the lattice work has the form of a brush, including filaments or bristles which are dimensioned to bridge the spacing between the tube and the wall of the hole. (12 claims)
Authors:
Publication Date:
Mar 02, 1965
Product Type:
Patent
Report Number:
CA 704948
Reference Number:
EDB-81-025561
Resource Relation:
Patent File Date: Filed date 18 Dec 1961
Subject:
02 PETROLEUM; 03 NATURAL GAS; BOREHOLES; EXPLOSIVE FRACTURING; ENHANCED RECOVERY; NATURAL GAS; NATURAL GAS FIELDS; OIL FIELDS; PETROLEUM; TUBES; CAVITIES; COMMINUTION; ENERGY SOURCES; FLUIDS; FOSSIL FUELS; FRACTURING; FUEL GAS; FUELS; GAS FUELS; GASES; GEOLOGIC DEPOSITS; MINERAL RESOURCES; NATURAL GAS DEPOSITS; PETROLEUM DEPOSITS; RECOVERY; RESOURCES; 020300* - Petroleum- Drilling & Production; 030900 - Natural Gas- Artificial Stimulation, Plowshare- (-1989)
OSTI ID:
7057243
Country of Origin:
Canada
Language:
English
Submitting Site:
TUL
Size:
Pages: v
Announcement Date:

Citation Formats

Alfredsson, S H. Filling bore-holes with explosive. Canada: N. p., 1965. Web.
Alfredsson, S H. Filling bore-holes with explosive. Canada.
Alfredsson, S H. 1965. "Filling bore-holes with explosive." Canada.
@misc{etde_7057243,
title = {Filling bore-holes with explosive}
author = {Alfredsson, S H}
abstractNote = {In this device for filling boreholes formed in a rock formation with particulate explosive, the explosive is conveyed into the hole by means of a pressure fluid through a tube which has a lesser diameter than the hole. The tube is characterized by a lattice work arranged externally on it, and having a structure adapted to allow passage of a pressure fluid returning between the tube and the wall of the hole, but retaining particles of explosive entrained by the returning pressure fluid. In another arrangement of the device, the lattice work has the form of a brush, including filaments or bristles which are dimensioned to bridge the spacing between the tube and the wall of the hole. (12 claims)}
place = {Canada}
year = {1965}
month = {Mar}
}