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Title: Hydraulic piston-effect method and apparatus for forming a bore hole

Abstract

A system for the formation of a bore hole, particularly for use in enhancing the recovery of oil from an oil bearing underground formation using an assembly including a piston sliding in a guide tube. The forward end of the piston body terminates in a drillhead including multiple ports for passing drilling fluid into the formation. Pressurized fluid flowing through the piston body applies pressure against the drillhead to cause it to move into the formation at the same time as it is cutting a pathway for itself. In a preferred embodiment, the forward end of the guide tube includes a whipstock through which the piston body turns from a vertical to a horizontal direction into the formation to provide a radial for the injection of steam. A rigid metal piston body may be used which plastically deforms when passing through the whipstock and becomes rigid thereafter as it moves through the formation.

Inventors:
;
Publication Date:
OSTI Identifier:
5960852
Patent Number(s):
US 4527639
Assignee:
Bechtel National Corp.
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 2 Mar 1983; Other Information: PAT-APPL-471437
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; OIL WELLS; OFFSHORE DRILLING; ROTARY DRILLS; DESIGN; BOREHOLE LINKING; BOREHOLES; DRILLING FLUIDS; ENHANCED RECOVERY; FLUID INJECTION; INJECTION WELLS; OFFSHORE OPERATIONS; ROTARY DRILLING; WELL DRILLING; CAVITIES; DRILLING; DRILLING EQUIPMENT; DRILLS; EQUIPMENT; FLUIDS; RECOVERY; WELLS; 020300* - Petroleum- Drilling & Production

Citation Formats

Dickinson III, B. W. O., Dickinson, R W, and Hutchison, S O. Hydraulic piston-effect method and apparatus for forming a bore hole. United States: N. p., 1985. Web.
Dickinson III, B. W. O., Dickinson, R W, & Hutchison, S O. Hydraulic piston-effect method and apparatus for forming a bore hole. United States.
Dickinson III, B. W. O., Dickinson, R W, and Hutchison, S O. Tue . "Hydraulic piston-effect method and apparatus for forming a bore hole". United States.
@article{osti_5960852,
title = {Hydraulic piston-effect method and apparatus for forming a bore hole},
author = {Dickinson III, B. W. O. and Dickinson, R W and Hutchison, S O},
abstractNote = {A system for the formation of a bore hole, particularly for use in enhancing the recovery of oil from an oil bearing underground formation using an assembly including a piston sliding in a guide tube. The forward end of the piston body terminates in a drillhead including multiple ports for passing drilling fluid into the formation. Pressurized fluid flowing through the piston body applies pressure against the drillhead to cause it to move into the formation at the same time as it is cutting a pathway for itself. In a preferred embodiment, the forward end of the guide tube includes a whipstock through which the piston body turns from a vertical to a horizontal direction into the formation to provide a radial for the injection of steam. A rigid metal piston body may be used which plastically deforms when passing through the whipstock and becomes rigid thereafter as it moves through the formation.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {7}
}