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Class Information
Number: 166/298
Name: Wells > Processes > Perforating, weakening, bending or separating pipe at an unprepared point > Perforating, weakening or separating by mechanical means or abrasive fluid
Description: A process in which the wall portion of the pipe is perforated, weakened or separated by (1) a mechanical cutting, punching or abrading means or (2) a jet of fluid containing an abrasive.










Patents under this class:
1 2 3 4 5 6 7

Patent Number Title Of Patent Date Issued
8695506 Device for verifying detonator connection Apr. 15, 2014
8684084 Method and apparatus for selective down hole fluid communication Apr. 1, 2014
8678088 Method and apparatus to position and protect control lines being coupled to a pipe string on a rig Mar. 25, 2014
8657006 Oil well plug and abandonment method Feb. 25, 2014
8651185 Reducing or stopping the uncontrolled flow of fluid such as oil from a well Feb. 18, 2014
8616281 Method and apparatus for moving a high pressure fluid aperture in a well bore servicing tool Dec. 31, 2013
8602102 Blowout preventers and methods of use Dec. 10, 2013
8602101 Multi-cycle pipe cutter and related methods Dec. 10, 2013
8596362 Hydraulic fracturing methods and well casing plugs Dec. 3, 2013
8590618 Method and apparatus for single run cutting of well casing and forming subsurface lateral passages from a well Nov. 26, 2013
8561683 Wellbore tubular cutter Oct. 22, 2013
8555955 One trip multiple string section milling of subterranean tubulars Oct. 15, 2013
8540027 Method and apparatus for selective down hole fluid communication Sep. 24, 2013
8534957 Cold assisted pipe splitting and bursting Sep. 17, 2013
8528644 Apparatus and method for milling casing in jet drilling applications for hydrocarbon production Sep. 10, 2013
8528630 Through tubing cable rotary system Sep. 10, 2013
8499834 Milling tool for establishing openings in wellbore obstructions Aug. 6, 2013
8490702 Downhole tool assembly with debris relief, and method for using same Jul. 23, 2013
8469089 Process and apparatus to improve reliability of pinpoint stimulation operations Jun. 25, 2013
8469096 Whipstock Jun. 25, 2013
8469097 Subterranean tubular cutter with depth of cut feature Jun. 25, 2013
8459357 Milling system and method of milling Jun. 11, 2013
8459358 Cutting dart and method of using the cutting dart Jun. 11, 2013
8453737 Diameter based tracking for window milling system Jun. 4, 2013
8448700 Abrasive perforator with fluid bypass May. 28, 2013
8424595 Method and apparatus for releasing a coiled tubing internal conduit from a bottom hole assembly Apr. 23, 2013
8424607 System and method for severing a tubular Apr. 23, 2013
8403049 Methods and devices for one trip plugging and perforating of oil and gas wells Mar. 26, 2013
8403048 Slickline run hydraulic motor driven tubing cutter Mar. 26, 2013
8376040 Cutting device and a method for emergency cutting of a line in a well Feb. 19, 2013
8365814 Pre-verification of perforation alignment Feb. 5, 2013
8360156 Method and apparatus for preventing spillage or loss of drill fluids Jan. 29, 2013
8353367 Methods of using a particle impact drilling system for removing near-borehole damage, milling objects in a wellbore, under reaming, coring perforating, assisting annular flow, and associated m Jan. 15, 2013
8322422 Method of removing a device in an annulus Dec. 4, 2012
8312925 Bottom hole assembly for wellbore operations Nov. 20, 2012
8307903 Methods and apparatus for subsea well intervention and subsea wellhead retrieval Nov. 13, 2012
8291977 Oil well plug and abandonment method Oct. 23, 2012
8286706 Pressure compensation for a perforating gun Oct. 16, 2012
8281860 Method and system for treating a subterranean formation Oct. 9, 2012
8267199 Perforating and jet drilling method and apparatus Sep. 18, 2012
8267198 Perforating and jet drilling method and apparatus Sep. 18, 2012
8261828 Optimized machining process for cutting tubulars downhole Sep. 11, 2012
8245785 Method and apparatus for lateral well drilling with biased length adjusting casing cutter Aug. 21, 2012
8240369 Slot-perforating system for oil, gas and hydro-geological wells Aug. 14, 2012
8210254 Diverting tool Jul. 3, 2012
8201643 System and method for longitudinal and lateral jetting in a wellbore Jun. 19, 2012
8201631 Multi-functional isolation tool and method of use Jun. 19, 2012
8186425 Sympathetic ignition closed packed propellant gas generator May. 29, 2012
8186435 Method and apparatus for stimulating wells with propellants May. 29, 2012
8151882 Technique and apparatus to deploy a perforating gun and sand screen in a well Apr. 10, 2012

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