1
Kevin James Nikiforuk: Shrinkable sleeve stabilizer. Tesco Corporation, Bracewell & Giuliani, April 22, 2014: US08701785 (1 worldwide citation)

Shrinkable sleeve stabilizers formed around the outer surface of a pipe to enhance position stability of the pipe when operably positioned within a well bore and related methods, are provided. The shrinkable sleeve stabilizer according to an embodiment of the invention includes a plurality of elonga ...


2
Kevin James Nikiforuk: Flow control diverter valve. Schlumberger Technology Corporation, Osha • Liang, May 27, 2014: US08733474 (1 worldwide citation)

A method of drilling a well and installing a liner includes assembling concentric inner and outer strings of tubulars. A drill bit is located at the lower end of the inner string and a liner with a liner hanger makes up part of the outer string. The inner and outer strings may be rotated in unison t ...


3
Kevin James Nikiforuk: Dampered drop plug. Schlumberger Technology Corporation, Osha · Liang, March 24, 2015: US08985227

A dampered drop plug drops down a bore of a drill string. The dampered drop plug includes a retainer configured to land on an upward facing shoulder of a tubular sleeve, and a plug releasably coupled to the retainer. The plug couples to the retainer while at a first pressure in the bore and decouple ...


4
Kevin James Nikiforuk: System and method for transporting tubular onto a drilling rig. TESCO CORPORATION, Fletcher Yoder P C, December 27, 2016: US09528330

A conveyor assembly for transporting tubular onto a drilling rig includes a plurality of conveyor sections coupled together end to end. The conveyor sections are configured to receive and transport the tubular. Each of the plurality of conveyor sections includes a conveyor belt having treads for tra ...


5
Kevin James Nikiforuk: Bladder type crimper. TESCO CORPORATION, Fletcher Yoder PC, September 8, 2015: US09127514

Embodiments of the present disclosure are directed toward a bladder-type crimper. The crimper includes a cylindrical body comprising a cavity and a bladder assembly disposed within the cavity, wherein the bladder assembly comprises an elastic bladder and a plurality of fingers arrayed about opposite ...


6
Kevin James Nikiforuk: Tubular engaging device and method. Tesco Corporation, Fletcher Yoder P C, March 24, 2015: US08985225

Present embodiments are directed to a device for a top drive drilling system. The device includes a movable sleeve configured to be disposed around at least a portion of a sub. The movable sleeve is configured to be selectively disposed around a tubular by sliding axially along the sub. The device a ...


7
Kevin James Nikiforuk: System for releasing a cement plug. TESCO CORPORATION, Fletcher Yoder P C, March 28, 2017: US09605501

In accordance with one aspect of the disclosure a system includes a plug launching assembly, including a housing. The system also includes a first flow assembly of the plug launching assembly including a first primary flow path configured to direct a fluid flow into a wellbore. Moreover, the first f ...


8
Kevin James Nikiforuk: Casing filling tool. TESCO CORPORATION, Fletcher Yoder P C, November 29, 2016: US09506306

A system includes a tubular filling tool. In certain embodiments, the tubular filling tool includes a conductor pipe configured to receive a filling fluid flow from a top drive and a diffuser block communicatively coupled to the conductor pipe and configured to receive the filling fluid flow from th ...


9
Kevin James Nikiforuk: Downhole slot cutter. Nabors Drilling Technologies USA, Enrique Abarca, Abel Law Group, April 3, 2018: US09932802

Embodiments of the present disclosure are directed towards a downhole slot cutter. The downhole slot cutter a housing of the downhole slot cutter configured to be inserted into a tubular positioned within a wellbore, and a plurality of dies supported by the housing, wherein the plurality of dies is ...


10
Kevin James Nikiforuk: Downhole slot cutter. TESCO CORPORATION, Fletcher Yoder P C, March 1, 2016: US09273540

Embodiments of the present disclosure are directed towards a downhole slot cutter. The downhole slot cutter a housing of the downhole slot cutter configured to be inserted into a tubular positioned within a wellbore, and a plurality of dies supported by the housing, wherein the plurality of dies is ...