Patents by Inventor Rafael LASTRA
Rafael LASTRA 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: 10947831Abstract: A fluid management system positioned in a wellbore for recovering a multiphase stream from the wellbore. The system comprising a downhole separator configured to produce a carrier fluid having a carrier fluid pressure and a separated fluid having a separated fluid pressure, an artificial lift device configured to increase the carrier fluid pressure to produce the turbine feed stream having a turbine feed pressure, a turbine configured to convert fluid energy in the turbine feed stream to harvested energy, the conversion fluid energy from the turbine feed stream to harvested energy produces a turbine discharge stream having a turbine discharge pressure less than the turbine feed pressure, and a pressure boosting device configured to convert the harvested energy to pressurized fluid energy, the conversion of harvested energy to pressurized fluid energy produces a pressurized fluid stream having a pressurized fluid pressure greater than the separated fluid pressure.Type: GrantFiled: June 12, 2019Date of Patent: March 16, 2021Inventors: Jinjiang Xiao, Rafael Lastra, Shoubo Wang
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Publication number: 20190292894Abstract: A fluid management system positioned in a wellbore for recovering a multiphase stream from the wellbore. The system comprising a downhole separator configured to produce a carrier fluid having a carrier fluid pressure and a separated fluid having a separated fluid pressure, an artificial lift device configured to increase the carrier fluid pressure to produce the turbine feed stream having a turbine feed pressure, a turbine configured to convert fluid energy in the turbine feed stream to harvested energy, the conversion fluid energy from the turbine feed stream to harvested energy produces a turbine discharge stream having a turbine discharge pressure less than the turbine feed pressure, and a pressure boosting device configured to convert the harvested energy to pressurized fluid energy, the conversion of harvested energy to pressurized fluid energy produces a pressurized fluid stream having a pressurized fluid pressure greater than the separated fluid pressure.Type: ApplicationFiled: June 12, 2019Publication date: September 26, 2019Inventors: Jinjiang XIAO, Rafael LASTRA, Shoubo WANG
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Patent number: 10385673Abstract: A fluid management system positioned in a wellbore for recovering a multiphase stream from the wellbore. The system comprising a downhole separator configured to produce a carrier fluid having a carrier fluid pressure and a separated fluid having a separated fluid pressure, an artificial lift device configured to increase the carrier fluid pressure to produce the turbine feed stream having a turbine feed pressure, a turbine configured to convert fluid energy in the turbine feed stream to harvested energy, the conversion fluid energy from the turbine feed stream to harvested energy produces a turbine discharge stream having a turbine discharge pressure less than the turbine feed pressure, and a pressure boosting device configured to convert the harvested energy to pressurized fluid energy, the conversion of harvested energy to pressurized fluid energy produces a pressurized fluid stream having a pressurized fluid pressure greater than the separated fluid pressure.Type: GrantFiled: April 1, 2016Date of Patent: August 20, 2019Assignee: Saudi Arabian Oil CompanyInventors: Jinjiang Xiao, Rafael Lastra, Shoubo Wang
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Patent number: 10100596Abstract: A tubing hanger assembly for use in a wellhead assembly that includes tubing hanger member, a retainer that lands in the hanger member, and slip assembly landed in the retainer that supports a string of composite tubing and an electrical submersible pump assembly (ESP). The tubing and ESP are disposed in a wellbore formed beneath the wellhead assembly. The slip assembly is non-marking and includes grit on its inner surface rather than teeth.Type: GrantFiled: September 16, 2015Date of Patent: October 16, 2018Assignee: Saudi Arabian Oil CompanyInventors: Brian A. Roth, Jinjiang Xiao, Rafael Lastra
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Patent number: 10018193Abstract: A system for displacing fluid inside of a tubular member includes at least one peristaltic pump. Each peristaltic pump includes an elongated core member with a longitudinal axis located within the tubular member. A flexible member surrounds, and is concentric to, the elongated core member. The flexible member has a plurality of circular bands disposed along a length of the flexible member, each circular band being moveable between a contracted condition with a minimal radius and an expanded condition with a maximal radius. An outer membrane covers the circular bands, forming a first fluid cavity between an outer surface of the outer membrane and an inner surface of the tubular member. The outer membrane is operable to generate peristaltic waves in the first fluid cavity by selectively moving each circular band between the contracted condition and the expanded condition.Type: GrantFiled: September 29, 2014Date of Patent: July 10, 2018Assignee: SAUDI ARABIAN OIL COMPANYInventor: Rafael Lastra
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Patent number: 9951598Abstract: A method of homogenizing a production fluid from an oil well having one or more wellbores includes separating gas from the production fluid in a vertical or horizontal section of a well casing at a first location spaced from a heel portion of a wellbore, and injecting the separated gas into the production fluid at a second location spaced from the heel portion of the wellbore and provided downstream of the first location.Type: GrantFiled: May 26, 2016Date of Patent: April 24, 2018Assignee: Saudi Arabian Oil CompanyInventors: Brian A. Roth, Rafael Lastra
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Patent number: 9863226Abstract: A reaction apparatus for providing reactants from a surface to a wellbore to create a generated gas when the reactants undergo a reaction in situ to affect the density of a fluid in the wellbore, the reaction apparatus comprises a reaction housing, the reaction housing comprises a first reactant cell configured to contain a first reactant, a second reactant cell configured to contain a second reactant, a mixing chamber, configured to allow the first reactant and the second reactant to mix, a first passage configured to allow the first reactant to pass from the first reactant cell to the mixing chamber, a second passage configured to allow the second reactant to pass from the second reactant cell to the mixing chamber, an outlet configured to allow the generated gas from the reaction to escape the mixing chamber, a line comprising a plurality of electric cables, and a reel.Type: GrantFiled: September 29, 2014Date of Patent: January 9, 2018Assignee: SAUDI ARABIAN OIL COMPANYInventors: Rafael Lastra, Mohammed Nabil Noui-Mehidi
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Publication number: 20160290116Abstract: A fluid management system positioned in a wellbore for recovering a multiphase stream from the wellbore. The system comprising a downhole separator configured to produce a carrier fluid having a carrier fluid pressure and a separated fluid having a separated fluid pressure, an artificial lift device configured to increase the carrier fluid pressure to produce the turbine feed stream having a turbine feed pressure, a turbine configured to convert fluid energy in the turbine feed stream to harvested energy, the conversion fluid energy from the turbine feed stream to harvested energy produces a turbine discharge stream having a turbine discharge pressure less than the turbine feed pressure, and a pressure boosting device configured to convert the harvested energy to pressurized fluid energy, the conversion of harvested energy to pressurized fluid energy produces a pressurized fluid stream having a pressurized fluid pressure greater than the separated fluid pressure.Type: ApplicationFiled: April 1, 2016Publication date: October 6, 2016Inventors: Jinjiang XIAO, Rafael LASTRA, Shoubo WANG
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Publication number: 20160265333Abstract: A method of homogenizing a production fluid from an oil well having one or more wellbores includes separating gas from the production fluid in a vertical or horizontal section of a well casing at a first location spaced from a heel portion of a wellbore, and injecting the separated gas into the production fluid at a second location spaced from the heel portion of the wellbore and provided downstream of the first location.Type: ApplicationFiled: May 26, 2016Publication date: September 15, 2016Inventors: Brian A. ROTH, Rafael LASTRA
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Patent number: 9353614Abstract: A system for and method for homogenizing the liquid and the gas and including providing a tube arrangement, first breaking up and separating the slugged gas from the liquid at a first location, and then gathering it into holding location—i.e., an annulus section of the flow tube—where it is re-introduced in controlled amounts into the liquid downstream of the first location. Various alternative gas/liquid separation devices are incorporated into the system which devices may be located either in a vertical wellbore or a horizontal wellbore, depending upon the particular well characteristics.Type: GrantFiled: February 20, 2014Date of Patent: May 31, 2016Assignee: Saudi Arabian Oil CompanyInventors: Brian A. Roth, Rafael Lastra
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Publication number: 20160076330Abstract: A tubing hanger assembly for use in a wellhead assembly that includes tubing hanger member, a retainer that lands in the hanger member, and slip assembly landed in the retainer that supports a string of composite tubing and an electrical submersible pump assembly (ESP). The tubing and ESP are disposed in a wellbore formed beneath the wellhead assembly. The slip assembly is non-marking and includes grit on its inner surface rather than teeth.Type: ApplicationFiled: September 16, 2015Publication date: March 17, 2016Inventors: Brian A. Roth, Jinjiang Xiao, Rafael Lastra
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Publication number: 20150233228Abstract: A system and method for improving the flow characteristics of gaseous slug-laden liquid hydrocarbon wells, particularly from horizontal, of similar boreholes. The invention provides a system and method which essentially homogenizes the liquid and the gas, utilizing a unique flow tube arrangement and a sequence of steps by first breaking up and separating the slugged gas from the liquid at a first location, and then gathering it into holding location—i.e., an annulus section—where it is re-introduced in controlled amounts into the liquid downstream of the first location. The gas is re-introduced into the liquid flow in such pre-determined and controlled quantities as to promote better pressure and flow characteristics of the hydrocarbon liquid product. Various alternative gas/liquid separation devices are incorporated into the system of the invention, which devices may be located either in a vertical wellbore or a horizontal wellbore, depending upon the particular well characteristics.Type: ApplicationFiled: February 20, 2014Publication date: August 20, 2015Applicant: Saudi Arabian Oil CompanyInventors: Brian A. ROTH, Rafael LASTRA
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Publication number: 20150090442Abstract: A reaction apparatus for providing reactants from a surface to a wellbore to create a generated gas when the reactants undergo a reaction in situ to affect the density of a fluid in the wellbore, the reaction apparatus comprises a reaction housing, the reaction housing comprises a first reactant cell configured to contain a first reactant, a second reactant cell configured to contain a second reactant, a mixing chamber, configured to allow the first reactant and the second reactant to mix, a first passage configured to allow the first reactant to pass from the first reactant cell to the mixing chamber, a second passage configured to allow the second reactant to pass from the second reactant cell to the mixing chamber, an outlet configured to allow the generated gas from the reaction to escape the mixing chamber, a line comprising a plurality of electric cables, and a reel.Type: ApplicationFiled: September 29, 2014Publication date: April 2, 2015Inventors: Rafael LASTRA, Mohammed Nabil NOUI-MEHIDI
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Publication number: 20150093257Abstract: A system for displacing fluid inside of a tubular member includes at least one peristaltic pump. Each peristaltic pump includes an elongated core member with a longitudinal axis located within the tubular member. A flexible member surrounds, and is concentric to, the elongated core member. The flexible member has a plurality of circular bands disposed along a length of the flexible member, each circular band being moveable between a contracted condition with a minimal radius and an expanded condition with a maximal radius. An outer membrane covers the circular bands, forming a first fluid cavity between an outer surface of the outer membrane and an inner surface of the tubular member. The outer membrane is operable to generate peristaltic waves in the first fluid cavity by selectively moving each circular band between the contracted condition and the expanded condition.Type: ApplicationFiled: September 29, 2014Publication date: April 2, 2015Applicant: SAUDI ARABIAN OIL COMPANYInventor: Rafael Lastra