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Class Information
Number: 166/297
Name: Wells > Processes > Perforating, weakening, bending or separating pipe at an unprepared point
Description: A process comprising forming a hold, weakening a localized portion, bending or separating portions of a pipe at any suitable location which has not previously been prepared to make it easier to operate on.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7610969 |
Perforating methods and devices for high wellbore pressure applications |
Nov. 3, 2009 |
| 7600568 |
Safety vent valve |
Oct. 13, 2009 |
| 7588084 |
Method for releasing cables from an attached well tool and apparatus for exercising the method |
Sep. 15, 2009 |
| 7575060 |
Collapse resistance of tubing |
Aug. 18, 2009 |
| 7571768 |
Method and apparatus for perforating a casing and producing hydrocarbons |
Aug. 11, 2009 |
| 7571766 |
Methods of fracturing a subterranean formation using a jetting tool and a viscoelastic surfactant fluid to minimize formation damage |
Aug. 11, 2009 |
| 7565927 |
Monitoring an explosive device |
Jul. 28, 2009 |
| 7565930 |
Method and apparatus for stimulating wells with propellants |
Jul. 28, 2009 |
| 7552772 |
Locating recess in a shoe for expandable liner system |
Jun. 30, 2009 |
| 7546875 |
Integrated sand control completion system and method |
Jun. 16, 2009 |
| 7540326 |
System and method for well treatment and perforating operations |
Jun. 2, 2009 |
| 7536942 |
Explosive pipe severing tool |
May. 26, 2009 |
| 7533722 |
Surge chamber assembly and method for perforating in dynamic underbalanced conditions |
May. 19, 2009 |
| 7533731 |
Casing apparatus and method for casing or repairing a well, borehole, or conduit |
May. 19, 2009 |
| 7530397 |
Explosive pipe severing tool |
May. 12, 2009 |
| 7510017 |
Sealing and communicating in wells |
Mar. 31, 2009 |
| 7497259 |
System and method for forming cavities in a well |
Mar. 3, 2009 |
| 7493958 |
Technique and apparatus for multiple zone perforating |
Feb. 24, 2009 |
| 7487832 |
Force transfer apparatus to assist release of loaded member |
Feb. 10, 2009 |
| 7487834 |
Methods of using a laser to perforate composite structures of steel casing, cement and rocks |
Feb. 10, 2009 |
| 7487833 |
Safety apparatus for perforating system |
Feb. 10, 2009 |
| 7469745 |
Apparatus and method to mechanically orient perforating systems in a well |
Dec. 30, 2008 |
| 7451818 |
Method of reducing sand production from a wellbore |
Nov. 18, 2008 |
| 7445045 |
Method of optimizing production of gas from vertical wells in coal seams |
Nov. 4, 2008 |
| 7441601 |
Perforation gun with integral debris trap apparatus and method of use |
Oct. 28, 2008 |
| 7441598 |
Methods of stabilizing unconsolidated subterranean formations |
Oct. 28, 2008 |
| 7431083 |
Sub-surface coalbed methane well enhancement through rapid oxidation |
Oct. 7, 2008 |
| 7413015 |
Perforating gun |
Aug. 19, 2008 |
| 7409993 |
Weight spacer apparatus |
Aug. 12, 2008 |
| 7409992 |
Perforating gun |
Aug. 12, 2008 |
| 7401650 |
Apparatus and methods for radially expanding a tubular member |
Jul. 22, 2008 |
| 7401652 |
Multi-perf fracturing process |
Jul. 22, 2008 |
| 7387162 |
Apparatus and method for selective actuation of downhole tools |
Jun. 17, 2008 |
| 7360599 |
Debris reduction perforating apparatus and method for use of same |
Apr. 22, 2008 |
| 7360587 |
Debris reduction perforating apparatus |
Apr. 22, 2008 |
| 7353871 |
Downhole automatic tool release and method of use |
Apr. 8, 2008 |
| 7353866 |
Stimulation tool having a sealed ignition system |
Apr. 8, 2008 |
| 7347272 |
Formation isolation valve |
Mar. 25, 2008 |
| 7347279 |
Charge holder apparatus |
Mar. 25, 2008 |
| 7343975 |
Method for stimulating a well |
Mar. 18, 2008 |
| 7325612 |
One-trip cut-to-release apparatus and method |
Feb. 5, 2008 |
| 7318475 |
Matrix acidizing high permeability contrast formations |
Jan. 15, 2008 |
| 7303016 |
Casing with isolated annular space |
Dec. 4, 2007 |
| 7303017 |
Perforating gun assembly and method for creating perforation cavities |
Dec. 4, 2007 |
| 7287589 |
Well treatment system and method |
Oct. 30, 2007 |
| 7284612 |
Controlling transient pressure conditions in a wellbore |
Oct. 23, 2007 |
| 7284489 |
Casing conveyed well perforating apparatus and method |
Oct. 23, 2007 |
| 7284613 |
Method and apparatus for assembling stackable gun system inside a well bore |
Oct. 23, 2007 |
| 7278486 |
Fracturing method providing simultaneous flow back |
Oct. 9, 2007 |
| 7278482 |
Anchor and method of using same |
Oct. 9, 2007 |
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