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Class Information
Number: 175/79
Name: Boring or penetrating the earth > Tool shaft advanced relative to guide insertable in inaccessible hole to change direction of advance
Description: Apparatus comprising a tool shaft and a means engageably by the shaft as the shaft is advanced to change the direction of advance of the shaft, said means being insertable in an inaccessible hole.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7575049 |
Exit window milling assembly with improved restraining force |
Aug. 18, 2009 |
| 7487847 |
Lateral downhole drilling tool |
Feb. 10, 2009 |
| 7455127 |
Apparatus and method for improving multilateral well formation and reentry |
Nov. 25, 2008 |
| 7380599 |
Apparatus and method for characterizing a reservoir |
Jun. 3, 2008 |
| RE40067 |
Downhole equipment tools and assembly procedures for the drilling, tie-in and completion of vertical cased oil wells connected to liner-equipped multiple drainholes |
Feb. 19, 2008 |
| 7216726 |
Downhole fluid-tight flexible joint |
May. 15, 2007 |
| RE39141 |
Downhole equipment, tools and assembly procedures for the drilling, tie-in and completion of vertical cased oil wells connected to liner-equipped multiple drainholes |
Jun. 27, 2006 |
| 6883611 |
Sealed multilateral junction system |
Apr. 26, 2005 |
| 6758289 |
Method and apparatus for hydrocarbon subterranean recovery |
Jul. 6, 2004 |
| 6615915 |
High pressure side-by-side wellhead system |
Sep. 9, 2003 |
| 6588517 |
Boring apparatus |
Jul. 8, 2003 |
| 6405804 |
Method and apparatus for retrieving a deflecting tool |
Jun. 18, 2002 |
| 6220372 |
Apparatus for drilling lateral drainholes from a wellbore |
Apr. 24, 2001 |
| 6206111 |
High pressure internal sleeve for use with easily drillable exit ports |
Mar. 27, 2001 |
| 6189629 |
Lateral jet drilling system |
Feb. 20, 2001 |
| 6041855 |
High torque pressure sleeve for easily drillable casing exit ports |
Mar. 28, 2000 |
| 6003621 |
Methods and apparatus for drilling holes laterally from a well |
Dec. 21, 1999 |
| 5964287 |
Window assembly for multiple wellbore completions |
Oct. 12, 1999 |
| 5911283 |
Sectional drive system |
Jun. 15, 1999 |
| 5887668 |
Wellbore milling-- drilling |
Mar. 30, 1999 |
| 5704437 |
Methods and apparatus for drilling holes laterally from a well |
Jan. 6, 1998 |
| 5699866 |
Sectional drive system |
Dec. 23, 1997 |
| 5678634 |
Method and apparatus for retrieving a whipstock |
Oct. 21, 1997 |
| 5560435 |
Method and apparatus for drilling multiple offshore wells from within a single conductor string |
Oct. 1, 1996 |
| 5484021 |
Method and apparatus for forming a window in a subsurface well conduit |
Jan. 16, 1996 |
| 5484017 |
Whipstock assembly for a sleeved casing |
Jan. 16, 1996 |
| 5458209 |
Device, system and method for drilling and completing a lateral well |
Oct. 17, 1995 |
| 5445222 |
Whipstock and staged sidetrack mill |
Aug. 29, 1995 |
| 5431223 |
Drilling kick-off device |
Jul. 11, 1995 |
| 5423388 |
Direction controllable subsurface borehole tool |
Jun. 13, 1995 |
| 5411082 |
Scoophead running tool |
May. 2, 1995 |
| 5197783 |
Extendable/erectable arm assembly and method of borehole mining |
Mar. 30, 1993 |
| 5148877 |
Apparatus for lateral drain hole drilling in oil and gas wells |
Sep. 22, 1992 |
| 5085283 |
Method and tool string for curving a vertical borehole horizontally |
Feb. 4, 1992 |
| 4928757 |
Hydraulic well penetration apparatus |
May. 29, 1990 |
| 4800966 |
Devices for drilling branched wells |
Jan. 31, 1989 |
| 4790384 |
Hydraulic well penetration apparatus and method |
Dec. 13, 1988 |
| 4768599 |
Drill bit for undercutting a blind bore |
Sep. 6, 1988 |
| 4640362 |
Well penetration apparatus and method |
Feb. 3, 1987 |
| 4577703 |
Apparatus for making boreholes in the lateral walls of narrow underground mine workings |
Mar. 25, 1986 |
| 4554982 |
Apparatus for forming boreholes |
Nov. 26, 1985 |
| 4449595 |
Method and apparatus for drilling a curved bore |
May. 22, 1984 |
| 4396075 |
Multiple branch completion with common drilling and casing template |
Aug. 2, 1983 |
| 4317492 |
Method and apparatus for drilling horizontal holes in geological structures from a vertical bore |
Mar. 2, 1982 |
| 4258800 |
Hinged conductor casing for deviated driving and method therefor |
Mar. 31, 1981 |
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