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Class Information
Number: 175/4.51
Name: Boring or penetrating the earth > Boring with explosion in inaccessible hole > With position orienting or indicating
Description: Subject matter directed to (1) means to position or aim an explosive charge or projectile relative to a predetermined point or direction in the hole, (2) means to enable an operator at the surface to determine where something (e.g., the explosive charge or projectile) is located in the hole or (3) means to place an indicator (e.g., reference bullet) in the formation or hole wall.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7469745 |
Apparatus and method to mechanically orient perforating systems in a well |
Dec. 30, 2008 |
| 7409993 |
Weight spacer apparatus |
Aug. 12, 2008 |
| 7152680 |
Slickline power control interface |
Dec. 26, 2006 |
| 7114564 |
Method and apparatus for orienting perforating devices |
Oct. 3, 2006 |
| 7044236 |
Shot direction indicating device |
May. 16, 2006 |
| 7000699 |
Method and apparatus for orienting perforating devices and confirming their orientation |
Feb. 21, 2006 |
| 6942033 |
Optimizing charge phasing of a perforating gun |
Sep. 13, 2005 |
| 6843318 |
Method and system for determining the position and orientation of a device in a well casing |
Jan. 18, 2005 |
| 6758124 |
Unique phasings and firing sequences for perforating guns |
Jul. 6, 2004 |
| 6684954 |
Bi-directional explosive transfer subassembly and method for use of same |
Feb. 3, 2004 |
| 6679327 |
Internal oriented perforating system and method |
Jan. 20, 2004 |
| 6672405 |
Perforating gun assembly for use in multi-stage stimulation operations |
Jan. 6, 2004 |
| 6523449 |
Perforating gun |
Feb. 25, 2003 |
| 6401818 |
Wellbore perforation method and apparatus |
Jun. 11, 2002 |
| 6386288 |
Casing conveyed perforating process and apparatus |
May. 14, 2002 |
| 6378607 |
Method and system for oriented perforating in a well with permanent sensors |
Apr. 30, 2002 |
| 6298915 |
Orienting system for modular guns |
Oct. 9, 2001 |
| 6283214 |
Optimum perforation design and technique to minimize sand intrusion |
Sep. 4, 2001 |
| 6173773 |
Orienting downhole tools |
Jan. 16, 2001 |
| 6032739 |
Method of locating wellbore casing collars using dual-purpose magnet |
Mar. 7, 2000 |
| 6003599 |
Azimuth-oriented perforating system and method |
Dec. 21, 1999 |
| 5964294 |
Apparatus and method for orienting a downhole tool in a horizontal or deviated well |
Oct. 12, 1999 |
| 5816343 |
Phased perforating guns |
Oct. 6, 1998 |
| 5603379 |
Bi-directional explosive transfer apparatus and method |
Feb. 18, 1997 |
| 5582248 |
Reversal-resistant apparatus for tool orientation in a borehole |
Dec. 10, 1996 |
| 5564499 |
Method and device for slotting well casing and scoring surrounding rock to facilitate hydraulic fractures |
Oct. 15, 1996 |
| 5542480 |
Perforating gun with retrievable mounting strips |
Aug. 6, 1996 |
| 5477785 |
Well pipe perforating gun |
Dec. 26, 1995 |
| 5273121 |
Intercarrier mechanism for connecting and orienting tubing conveyed perforating guns |
Dec. 28, 1993 |
| 5259466 |
Method and apparatus for orienting a perforating string |
Nov. 9, 1993 |
| 5211714 |
Wireline supported perforating gun enabling oriented perforations |
May. 18, 1993 |
| 5177321 |
Apparatus for severing tubular members |
Jan. 5, 1993 |
| 5107927 |
Orienting tool for slant/horizontal completions |
Apr. 28, 1992 |
| 5044437 |
Method and device for performing perforating operations in a well |
Sep. 3, 1991 |
| 5040619 |
Wireline supported perforating gun enabling oriented perforations |
Aug. 20, 1991 |
| 5033553 |
Intra-perforating gun swivel |
Jul. 23, 1991 |
| 5010964 |
Method and apparatus for orienting wellbore perforations |
Apr. 30, 1991 |
| 4974672 |
Gravel packing system for a production radial tube |
Dec. 4, 1990 |
| 4960171 |
Charge phasing arrangements in a perforating gun |
Oct. 2, 1990 |
| 4875413 |
Apparatus for perforating wells |
Oct. 24, 1989 |
| 4844170 |
Well perforating gun and method |
Jul. 4, 1989 |
| 4830120 |
Methods and apparatus for perforating a deviated casing in a subterranean well |
May. 16, 1989 |
| 4768597 |
Well perforation device |
Sep. 6, 1988 |
| 4756371 |
Perforation apparatus and method |
Jul. 12, 1988 |
| 4744424 |
Shaped charge perforating apparatus |
May. 17, 1988 |
| 4690058 |
Smooth wall blasting in rock |
Sep. 1, 1987 |
| 4637478 |
Gravity oriented perforating gun for use in slanted boreholes |
Jan. 20, 1987 |
| 4574892 |
Tubing conveyed perforating gun electrical detonator |
Mar. 11, 1986 |
| 4523649 |
Rotational alignment method and apparatus for tubing conveyed perforating guns |
Jun. 18, 1985 |
| 4445574 |
Continuous borehole formed horizontally through a hydrocarbon producing formation |
May. 1, 1984 |
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