Patents by Inventor Gerald Chalifoux
Gerald Chalifoux 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: 10260489Abstract: A fluid delivery system for an inverted electric submersible pump (ESP), where the ESP has a motor section positioned above a pump section in a production path of a hydrocarbon well. The system has a supply of fluid connected to the motor section of the ESP by a supply line and a positive displacement pump that pumps fluid through the supply line to the ESP. A valve is connected between the positive displacement pump and the ESP. The valve is in an open state when the positive displacement pump is pumping fluid. A bypass line is connected in parallel to the positive displacement pump and connected between the normally closed valve and the supply of fluid, the bypass line having a check valve that permits the flow of fluid from the supply of fluid to the ESP.Type: GrantFiled: May 14, 2015Date of Patent: April 16, 2019Assignee: Petrospec Engineering Inc.Inventors: Gerald Chalifoux, Clint Jones
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Publication number: 20180209247Abstract: A method of hanging a cable within a coiled tubing string includes the steps of determining a length of coiled tubing required within a well having a wellhead; determining a length of a cable required within the coiled tubing, the cable having a structural component along the length of the cable sufficient to support the weight of the cable; cutting the tubing string and installing a hanger sub in the coiled tubing string toward the wellhead attachment section relative to the downhole end, the hanger sub comprising an inner shoulder that extends radially into the hanger sub and defines an opening; and attaching an outer shoulder to the cable and inserting the cable into the coiled tubing string until the outer shoulder of the cable engages the inner shoulder of the hanger sub such that the inner shoulder positions the cable below the outer shoulder.Type: ApplicationFiled: March 19, 2018Publication date: July 26, 2018Applicant: Petrospec Engineering Ltd.Inventors: Gerald Chalifoux, Scott Penny, Clint Jones
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Patent number: 9920594Abstract: A method of hanging a cable within a coiled tubing string includes the steps of determining a length of coiled tubing required within a well having a wellhead; determining a length of a cable required within the coiled tubing, the cable having a structural component along the length of the cable sufficient to support the weight of the cable; cutting the tubing string and installing a hanger sub in the coiled tubing string toward, the wellhead attachment section relative to the downhole end, the hanger sub comprising an inner shoulder that extends radially into the hanger sub and defines an opening; and attaching an outer shoulder to the cable and inserting the cable into the coiled tubing string until the outer shoulder of the cable engages the inner shoulder of the hanger sub such that the inner shoulder positions the cable below the outer shoulder.Type: GrantFiled: May 8, 2014Date of Patent: March 20, 2018Assignee: Petrospec Engineering Ltd.Inventors: Gerald Chalifoux, Scott Penny, Clint Jones
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Publication number: 20160333869Abstract: A fluid delivery system for an inverted electric submersible pump (ESP), where the ESP has a motor section positioned above a pump section in a production path of a hydrocarbon well. The system has a supply of fluid connected to the motor section of the ESP by a supply line and a positive displacement pump that pumps fluid through the supply line to the ESP. A valve is connected between the positive displacement pump and the ESP. The valve is in an open state when the positive displacement pump is pumping fluid. A bypass line is connected in parallel to the positive displacement pump and connected between the normally closed valve and the supply of fluid, the bypass line having a check valve that permits the flow of fluid from the supply of fluid to the ESP.Type: ApplicationFiled: May 14, 2015Publication date: November 17, 2016Applicant: Petrospec Engineering Ltd.Inventors: Gerald Chalifoux, Clint Jones
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Publication number: 20150300126Abstract: A method of hanging a cable within a coiled tubing string includes the steps of determining a length of coiled tubing required within a well having a wellhead; determining a length of a cable required within the coiled tubing, the cable having a structural component along the length of the cable sufficient to support the weight of the cable; cutting the tubing string and installing a hanger sub in the coiled tubing string toward, the wellhead attachment section relative to the downhole end, the hanger sub comprising an inner shoulder that extends radially into the hanger sub and defines an opening; and attaching an outer shoulder to the cable and inserting the cable into the coiled tubing string until the outer shoulder of the cable engages the inner shoulder of the hanger sub such that the inner shoulder positions the cable below the outer shoulder.Type: ApplicationFiled: May 8, 2014Publication date: October 22, 2015Applicant: Petrospec Engineering Ltd.Inventors: Gerald Chalifoux, Scott Penny, Clint Jones
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Patent number: 8915303Abstract: A method of servicing an electric submersible pump in a well with a positive wellhead pressure includes providing production tubing in the well casing, a coil tubing string within the production tubing having an electric submersible pump at a downhole end of the coil tubing string, and a pump-receiving housing above the injection port of the wellhead. With the injection port sealed and the pump-receiving housing opened, the electric submersible pump may be inserted or removed from the pump-receiving housing. With the pump-receiving housing closed and the injection port opened, the electric submersible pump may be moved to or from the production tubing in the well.Type: GrantFiled: September 8, 2010Date of Patent: December 23, 2014Assignee: Petrospec Engineering Ltd.Inventor: Gerald Chalifoux
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Publication number: 20110308816Abstract: A method of servicing an electric submersible pump in a well with a positive wellhead pressure includes providing production tubing in the well casing, a coil tubing string within the production tubing having an electric submersible pump at a downhole end of the coil tubing string, and a pump-receiving housing above the injection port of the wellhead. With the injection port sealed and the pump-receiving housing opened, the electric submersible pump may be inserted or removed from the pump-receiving housing. With the pump-receiving housing closed and the injection port opened, the electric submersible pump may be moved to or from the production tubing in the well.Type: ApplicationFiled: September 8, 2010Publication date: December 22, 2011Applicant: PETROSPEC ENGINEERING LTD.Inventor: Gerald Chalifoux
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Publication number: 20110224907Abstract: An apparatus for measuring downhole pressure includes a plurality of conductors within a mineral insulated cable, a pressure sensor attached to at least two of the conductors, and a thermocouple embedded in the mineral insulated cable. The pressure sensor generates a signal that is dependent upon pressure. The thermocouple is rated for temperatures greater than 150° C. The thermocouple generates a signal that is dependent upon temperature.Type: ApplicationFiled: March 11, 2010Publication date: September 15, 2011Applicant: PETROSPEC ENGINEERING LTD.Inventor: Gerald Chalifoux
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Publication number: 20070122104Abstract: A method of preventing hydrogen darkening of optic fibre, which includes a step of providing a protective barrier of hydrogen free flowing gas around the optic fibre, such that the flowing gas sweeps away hydrogen.Type: ApplicationFiled: November 29, 2005Publication date: May 31, 2007Applicant: Petrospec Engineering Ltd.Inventors: Gerald Chalifoux, Robert Logan
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Publication number: 20060115221Abstract: A product consisting of a plurality of thermocouple cables braided or wound and covered with protective armour, thereby forming a braided bundle. The product is used in accordance with a method involving a further step of inserting the braided bundle into a well.Type: ApplicationFiled: November 28, 2005Publication date: June 1, 2006Applicant: Petrospec Engineering Ltd.Inventors: Gerald Chalifoux, Robert Logan