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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:

Class Number Class Name Patents
166/298 Perforating, weakening or separating by mechanical means or abrasive fluid 341


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14

Patent Number Title Of Patent Date Issued
8701767 Boron shaped charge Apr. 22, 2014
8684083 Perforating gun with rotatable charge tube Apr. 1, 2014
8678087 Wellbore laser operations Mar. 25, 2014
8672031 Perforating with wired drill pipe Mar. 18, 2014
8662182 Methods and apparatus for subsea well intervention and subsea wellhead retrieval Mar. 4, 2014
8651192 Coiled tubing bottom hole assembly with packer and anchor assembly Feb. 18, 2014
8651190 Shear boost triggering and bottle reducing system and method Feb. 18, 2014
8622132 Method of perforating a wellbore Jan. 7, 2014
8622149 Ballistic transfer delay device Jan. 7, 2014
8596378 Perforating safety system and assembly Dec. 3, 2013
8590634 Subsea drilling Nov. 26, 2013
8584763 Managing pressurized fluid in a downhole tool Nov. 19, 2013
8584756 Methods of isolating annular areas formed by multiple casing strings in a well Nov. 19, 2013
8579022 Apparatus for deploying and activating a downhole tool Nov. 12, 2013
8544563 Oil well perforators Oct. 1, 2013
8540024 Perforation strategy for heterogeneous proppant placement in hydraulic fracturing Sep. 24, 2013
8540026 Wellbore laser operations Sep. 24, 2013
8534957 Cold assisted pipe splitting and bursting Sep. 17, 2013
8534357 Wellbore laser operations Sep. 17, 2013
8534350 RF fracturing to improve SAGD performance Sep. 17, 2013
8528643 Wellbore laser operations Sep. 10, 2013
8490701 Methods of releasing at least one tubing string below a blow-out preventer Jul. 23, 2013
8490686 Coupler compliance tuning for mitigating shock produced by well perforating Jul. 23, 2013
8469089 Process and apparatus to improve reliability of pinpoint stimulation operations Jun. 25, 2013
8464794 Wellbore laser operations Jun. 18, 2013
8463585 Apparatus and method for modeling well designs and well performance Jun. 11, 2013
8443886 Perforating gun with rotatable charge tube May. 21, 2013
8439114 Method and apparatus for orienting perforating devices May. 14, 2013
8424606 Method and apparatus for perforating with reduced debris in wellbore Apr. 23, 2013
8418761 Stimuli-responsive high viscosity pill Apr. 16, 2013
8408286 Perforating string with longitudinal shock de-coupler Apr. 2, 2013
8397800 Perforating string with longitudinal shock de-coupler Mar. 19, 2013
8397814 Perforating string with bending shock de-coupler Mar. 19, 2013
8393392 Method and apparatus for perforating multiple wellbore intervals Mar. 12, 2013
8393393 Coupler compliance tuning for mitigating shock produced by well perforating Mar. 12, 2013
8381822 Managing pressurized fluid in a downhole tool Feb. 26, 2013
8365824 Perforating and fracturing system Feb. 5, 2013
8365825 Suppressing voltage transients in perforation operations Feb. 5, 2013
8356666 Wellbore perforation tool Jan. 22, 2013
8347963 Controlling transient underbalance in a wellbore Jan. 8, 2013
8347962 Non frangible perforating gun system Jan. 8, 2013
8342094 Dissolvable material application in perforating Jan. 1, 2013
8336612 Severing of downhole tubing with associated cable Dec. 25, 2012
8327926 Method for removing a consumable downhole tool Dec. 11, 2012
8307900 Method and apparatus for performing laser operations downhole Nov. 13, 2012
8302693 Wireless downhole tool positioning system Nov. 6, 2012
8286706 Pressure compensation for a perforating gun Oct. 16, 2012
8276656 System and method for mitigating shock effects during perforating Oct. 2, 2012
8272441 Wireless downhole tool positioning system Sep. 25, 2012
8256516 System and method for providing a downhole mechanical energy absorber Sep. 4, 2012

1 2 3 4 5 6 7 8 9 10 11 12 13 14










 
 
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