Patents by Inventor Timothy A. Andrzejak
Timothy A. Andrzejak has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11668166Abstract: A self-positioning system for a perforating gun or gun string is provided. The self-positioning system includes a plurality of protrusions extending outwardly from the perforating gun or the gun string for providing a finite number of rotational positions and/or for providing a desired water clearance. The protrusions include one or more groupings of at least three protrusions, the protrusions being angularly offset from each other about the outer circumference of the perforating gun or gun string.Type: GrantFiled: September 10, 2021Date of Patent: June 6, 2023Assignees: Harrison Jet Guns II, L.P., ResEnTech, LLCInventors: Jorge E. Lopez de Cardenas, Timothy A. Andrzejak, James F. Shelton
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Publication number: 20220074289Abstract: A self-positioning system for a perforating gun or gun string is provided. The self-positioning system includes a plurality of protrusions extending outwardly from the perforating gun or the gun string for providing a finite number of rotational positions and/or for providing a desired water clearance. The protrusions include one or more groupings of at least three protrusions, the protrusions being angularly offset from each other about the outer circumference of the perforating gun or gun string.Type: ApplicationFiled: September 10, 2021Publication date: March 10, 2022Inventors: Jorge E. Lopez de Cardenas, Timothy A. Andrzejak, James F. Shelton
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Publication number: 20190101367Abstract: The present disclosure relates to methods for perforating wells. A method in accordance with one embodiment includes positioning a perforating gun in the well and detonating the shaped charge in the well. The perforating gun includes a shaped charge that includes a casing, a liner disposed within an opening of the casing, and an explosive disposed between the casing and the liner. The liner is made of a metal powder blend having a spheroidized metal powder.Type: ApplicationFiled: October 9, 2018Publication date: April 4, 2019Inventor: Timothy A. Andrzejak
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Patent number: 10196894Abstract: A technique facilitates analysis of hydraulic fractures. A plurality of explosive pellets is constructed for delivery into fracture or fractures of a subterranean formation. Each explosive pellet comprises an explosive material combined with an initiating member working in cooperation with a friction sensitive pyrotechnic mixture. Crushing or otherwise actuating the initiating member initiates the friction sensitive pyrotechnic mixture which, in turn, ignites the explosive material to produce explosive signals. The explosive signals may be monitored to obtain data related to the fracture or fractures.Type: GrantFiled: January 28, 2015Date of Patent: February 5, 2019Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Timothy A. Andrzejak, Jorge E. Lopez de Cardenas, Robinson Egydio Lopes
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Patent number: 10113842Abstract: A shaped charge includes a casing, a liner disposed within an opening of the casing and an explosive disposed between the casing and the liner. The liner is made of a metal powder blend that includes a spheroidized metal powder. The spheroidized metal powder includes a spheroidized tungsten powder. The metal powder blend may further include a binder and a lubricant. The binder includes copper or lead. The lubricant includes graphite.Type: GrantFiled: June 12, 2012Date of Patent: October 30, 2018Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventor: Timothy A. Andrzejak
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Patent number: 9523255Abstract: A technique facilitates severing and sealing of a tubing, such as a tubing string located in a wellbore. The tubing is combined with a mechanism constructed to sever and seal the tubing. The mechanism comprises an internal explosive charge and an external explosive charge mounted inside and outside the tubing, respectively. The internal explosive charge is of sufficient size to sever the tubing upon detonation. Additionally, the external explosive charge is sized and oriented to collapse and seal at least one of the severed ends of the tubing once those severed ends are formed via detonation of the internal explosive charge.Type: GrantFiled: February 28, 2014Date of Patent: December 20, 2016Assignee: Schlumberger Technology CorporationInventor: Timothy Andrzejak
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Publication number: 20160341035Abstract: A technique facilitates analysis of hydraulic fractures. A plurality of explosive pellets is constructed for delivery into fracture or fractures of a subterranean formation. Each explosive pellet comprises an explosive material combined with an initiating member working in cooperation with a friction sensitive pyrotechnic mixture. Crushing or otherwise actuating the initiating member initiates the friction sensitive pyrotechnic mixture which, in turn, ignites the explosive material to produce explosive signals. The explosive signals may be monitored to obtain data related to the fracture or fractures.Type: ApplicationFiled: January 28, 2015Publication date: November 24, 2016Inventors: Timothy A. ANDRZEJAK, Jorge E. LOPEZ DE CARDENAS, Robison Egydio LOPES
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Patent number: 9334719Abstract: An explosive pellet for characterizing a fracture in a subterranean formation is provided. The pellet can include a casing having a detonation material and an explosive material disposed within the casing. The pellet can also include a nonexplosive material moveably disposed within the casing. Movement of the nonexplosive material can generate a predetermined amount of energy in the form of friction-generated heat sufficient to detonate the explosive material.Type: GrantFiled: May 31, 2012Date of Patent: May 10, 2016Assignee: Schlumberger Technology CorporationInventors: Gary L. Rytlewski, Jorge Lopez De Cardenas, Raymond Dickes, Philip Kneisl, Timothy A. Andrzejak
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Publication number: 20150247370Abstract: A technique facilitates severing and sealing of a tubing, such as a tubing string located in a wellbore. The tubing is combined with a mechanism constructed to sever and seal the tubing. The mechanism comprises an internal explosive charge and an external explosive charge mounted inside and outside the tubing, respectively. The internal explosive charge is of sufficient size to sever the tubing upon detonation. Additionally, the external explosive charge is sized and oriented to collapse and seal at least one of the severed ends of the tubing once those severed ends are formed via detonation of the internal explosive charge.Type: ApplicationFiled: February 28, 2014Publication date: September 3, 2015Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventor: Timothy Andrzejak
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Patent number: 8701767Abstract: A shaped charge includes a casing; a liner located within an opening of the casing; and an explosive located in the region between the casing and the liner, wherein at least one of the liner and the explosive comprises an intermetallic mixture comprising boron and a reactant metal. The reactant metal is one selected from the group consisting of Ti, Mg, Zr, Mo, and a combination thereof. A method for perforating in a well includes positioning a perforating gun in the well, wherein the perforating gun includes a shaped charge that includes: a casing; a liner located within an opening of the casing; and an explosive located in the region between the casing and the liner, wherein at least one of the liner and the explosive includes an intermetallic mixture that contains boron and a reactant metal; and detonating the shaped charge in the well.Type: GrantFiled: December 16, 2011Date of Patent: April 22, 2014Assignee: Schlumberger Technology CorporationInventors: Timothy A. Andrzejak, Claude Dewayne Jones
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Publication number: 20130327571Abstract: A shaped charge includes a casing, a liner disposed within an opening of the casing and an explosive disposed between the casing and the liner. The liner is made of a metal powder blend that includes a spheroidized metal powder. The spheroidized metal powder includes a spheroidized tungsten powder. The metal powder blend may further include a binder and a lubricant. The binder includes copper or lead. The lubricant includes graphite.Type: ApplicationFiled: June 12, 2012Publication date: December 12, 2013Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventor: Timothy A. Andrzejak
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Publication number: 20130032337Abstract: An explosive pellet for characterizing a fracture in a subterranean formation is provided. The pellet can include a casing having a detonation material and an explosive material disposed within the casing. The pellet can also include a nonexplosive material moveably disposed within the casing. Movement of the nonexplosive material can generate a predetermined amount of energy in the form of friction-generated heat sufficient to detonate the explosive material.Type: ApplicationFiled: May 31, 2012Publication date: February 7, 2013Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Gary L. Rytlewski, Jorge Lopez De Cardenas, Raymond Dickes, Philip Kneisl, Timothy A. Andrzejak
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Patent number: 8359977Abstract: An initiator device, comprising an explosive foil initiator; an initiator shaped charge that is activated by the explosive foil initiator; the initiator shaped charge comprising an outer casing having an opening therein defining a volume, an explosive located inside the opening, the explosive defining a concave cavity therein; a metal liner lining the concave cavity; and a detonation cord that is activated by the initiator shaped charge.Type: GrantFiled: February 25, 2009Date of Patent: January 29, 2013Assignee: Schlumberger Technology CorporationInventor: Timothy A. Andrzejak
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Publication number: 20120160492Abstract: A shaped charge includes a casing; a liner located within an opening of the casing; and an explosive located in the region between the casing and the liner, wherein at least one of the liner and the explosive comprises an intermetallic mixture comprising boron and a reactant metal. The reactant metal is one selected from the group consisting of Ti, Mg, Zr, Mo, and a combination thereof. A method for perforating in a well includes positioning a perforating gun in the well, wherein the perforating gun includes a shaped charge that includes: a casing; a liner located within an opening of the casing; and an explosive located in the region between the casing and the liner, wherein at least one of the liner and the explosive includes an intermetallic mixture that contains boron and a reactant metal; and detonating the shaped charge in the well.Type: ApplicationFiled: December 16, 2011Publication date: June 28, 2012Inventors: Timothy A. Andrzejak, Claude Dewayne Jones
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Publication number: 20100162911Abstract: An initiator device, comprising an explosive foil initiator; an initiator shaped charge that is activated by the explosive foil initiator; the initiator shaped charge comprising an outer casing having an opening therein defining a volume, an explosive located inside the opening, the explosive defining a concave cavity therein; a metal liner lining the concave cavity; and a detonation cord that is activated by the initiator shaped charge.Type: ApplicationFiled: February 25, 2009Publication date: July 1, 2010Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventor: Timothy A. Andrzejak