Patents by Inventor Daniel ROJAS

Daniel ROJAS 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).

  • Publication number: 20240384573
    Abstract: An apparatus for aligning a latch to a striker of a vehicle door is provided. The apparatus includes a frame configured to be attached to the vehicle door, and a base coupled to the frame. The frame includes a body, a first arm and a second arm. The body defines an opening configured to receive the striker. The first arm extends from the body, and includes a first inner surface. The second arm extends from the body, and includes a second inner surface. The base includes an upper surface that defines a recess that extends inward from the end that abuts the frame. The recess is configured to receive a portion of the striker that passes through the opening in the frame. The first inner surface, the second inner surface, and the upper surface are configured to align the latch to the striker when the vehicle door is closed.
    Type: Application
    Filed: May 17, 2023
    Publication date: November 21, 2024
    Inventors: Carlos Miguel CHON, Ashish GUPTA, David Philip BOYER, Julio Cesar MALDONADO, Victor Daniel ROJAS, Alfonso MARQUEZ LOPEZ
  • Publication number: 20230374893
    Abstract: A specialized wireline-conveyed collet baffle, adapted for use with a conveying tool, setting tool, and explosive charges, for perforating and fracking a wellbore. The collet baffle like prior art baffles possesses an annular ring for engaging a circumferential annular groove in a casing, but unlike prior art baffles possesses an inner annular hollow ring member which may be actuated by a push rod of a setting tool and slidably repositioned when such annular ring underlies and is engaged with the circumferential groove on a casing sub, thereby retaining the collet baffle in place in the casing string when the conveying tool, setting tool, and explosive charges are subsequently re-positioned uphole. An adapter tool for coupling the collet baffle to a conventional setting tool, a wireline system employing the specialized collet baffle and adapter tool, and a method for perforating and fracking a wellbore are further disclosed.
    Type: Application
    Filed: May 17, 2022
    Publication date: November 23, 2023
    Inventors: Sean P. CAMPBELL, Daniel ROJAS, David SPELLER
  • Publication number: 20230265752
    Abstract: An actuation member for use in fracking operations, which immediately prior to fracking locates a sand screen at a desired location along a tubing liner and eliminates having to trip out the frac string prior to commencing production. The actuation member comprises a cylindrical hollow collet sleeve, with one or more radially-outwardly biased protuberances forming a unique profile which further matingly engages a corresponding mating profile on one of a plurality of sliding sleeve members in the tubular liner. A longitudinally-extending sand screen is provided, longitudinally slidable on the actuation member. A spring member, adapted to be forcibly compressed by the sand screen member when pressurized fluid is applied, and decompressed upon removal of pressurized fluid, is further provided on the actuation member.
    Type: Application
    Filed: January 16, 2023
    Publication date: August 24, 2023
    Inventors: Sean P. CAMPBELL, Daniel ROJAS, David SPELLER
  • Publication number: 20220307361
    Abstract: An actuation member for use in fracking operations, which immediately prior to fracking locates a sand screen at a desired location along a tubing liner and eliminates having to trip out the frac string prior to commencing production. The actuation member comprises a cylindrical hollow collet sleeve, with one or more radially-outwardly biased protuberances forming a unique profile which further matingly engages a corresponding mating profile on one of a plurality of sliding sleeve members in the tubular liner. A longitudinally-extending sand screen is provided, longitudinally slidable on the actuation member. A spring member, adapted to be forcibly compressed by the sand screen member when pressurized fluid is applied, and decompressed upon removal of pressurized fluid, is further provided on the actuation member.
    Type: Application
    Filed: May 5, 2022
    Publication date: September 29, 2022
    Inventors: Sean P. CAMPBELL, Daniel ROJAS, David SPELLER
  • Publication number: 20220290544
    Abstract: A system and method for fracking a hydrocarbon formation. An actuating member, flowable along a production string, is provided. A unique key portion thereon engages a desired sliding sleeve covering an associated port in the production string. Applying uphole fluid pressure causes the sliding sleeve and actuating member to move so as to uncover the associated port. After fracking and cessation of supply of pressurized fracturing fluid, a compressed spring on the actuating member decompresses so as to reposition a sand screen immediately beneath the port so as to prevent sand from flowing into the production string. Flowable insertion of additional “keyed” actuating members allows similar opening of additional successive uphole ports and fracking in the regions of such additional opened ports, with similar location of sand screens at each opened port. Plug members on each actuating member thereafter dissolve or are successively burst to thereby allow production.
    Type: Application
    Filed: March 15, 2021
    Publication date: September 15, 2022
    Inventors: Sean P. CAMPBELL, Daniel ROJAS, David SPELLER
  • Publication number: 20220290546
    Abstract: A method for fracking a hydrocarbon formation. An actuating member, flowable along a production string, is provided. A unique key portion thereon engages a desired sliding sleeve covering an associated port in the production string. Applying uphole fluid pressure causes the sliding sleeve and actuating member to move so as to uncover the associated port. After fracking and cessation of supply of pressurized fracturing fluid, a compressed spring on the actuating member decompresses so as to reposition a sand screen immediately beneath the port so as to prevent sand from flowing into the production string. Flowable insertion of additional “keyed” actuating members allows similar opening of additional successive uphole ports and fracking in the regions of such additional opened ports, with similar location of sand screens at each opened port. Plug members on each actuating member thereafter dissolve or are successively burst to thereby allow production.
    Type: Application
    Filed: May 5, 2022
    Publication date: September 15, 2022
    Inventors: Sean P. CAMPBELL, Daniel ROJAS, David SPELLER
  • Publication number: 20200362661
    Abstract: A retrieving tool for retrieving an annular hollow baffle member in a wellbore. The baffle member has an interior bore and radially outwardly-biased collet finger protuberances on an exterior thereof matingly engaging a correspondingly-dimensioned annular recess within a landing sub of a well casing of the wellbore. The retrieving tool has a tubular body and a plurality of radially-outwardly-extendable dogs thereon. The tubular body and the dogs are sized that, when the dogs are retracted, the retrieving tool is movable through the interior bore of the baffle member to a position below a lowermost thereof, and when the dogs are extended after the retrieving tool moves to said position, the dogs radially engageable with the landing sub and axially engageable with the lowermost of baffle member for pulling the baffle member uphole and disengaging it from the landing sub for retrieving the entirety of the baffle member.
    Type: Application
    Filed: July 31, 2020
    Publication date: November 19, 2020
    Inventors: David NORDHEIMER, Daniel ROJAS
  • Publication number: 20200199980
    Abstract: A system and method for successively fracking a wellbore at spaced intervals along tubing having therein frac ports each openably closed by a sliding sleeve. The system has at least one actuation member and at least one cylindrical sand screen sub insertable into the tubing. Each actuation member has a collet sleeve with a radially-outwardly biased protuberance of a first profile configured to matingly engage an interior groove profile on at least one of the sliding sleeves and slide the sliding sleeve downhole to open the corresponding port. Each cylindrical sand screen sub has a dissolvable plug member or burst plate disposed on one end thereof allowing for the sand screen to be forced into the well by pressure acting against the plug or plate, and has a resiliently-outwardly biased protuberance configured for engaging a mating profile on the tubing and retaining the sand screen sub in a desired position.
    Type: Application
    Filed: February 13, 2020
    Publication date: June 25, 2020
    Inventors: Sean P. CAMPBELL, Daniel ROJAS
  • Publication number: 20180320488
    Abstract: A system and method for successively fracking a wellbore at spaced intervals along tubing having therein frac ports each openably closed by a sliding sleeve. The system has at least one actuation member and at least one cylindrical sand screen sub insertable into the tubing. Each actuation member has a collet sleeve with a radially-outwardly biased protuberance of a first profile configured to matingly engage an interior groove profile on at least one of the sliding sleeves and slide the sliding sleeve downhole to open the corresponding port. Each cylindrical sand screen sub has a dissolvable plug member or burst plate disposed on one end thereof allowing for the sand screen to be forced into the well by pressure acting against the plug or plate, and has a resiliently-outwardly biased protuberance configured for engaging a mating profile on the tubing and retaining the sand screen sub in a desired position.
    Type: Application
    Filed: February 20, 2018
    Publication date: November 8, 2018
    Inventors: Sean P. CAMPBELL, Daniel ROJAS
  • Publication number: 20170198543
    Abstract: A baffle system for use in well casing having a plurality of landed subs therein, for progressive injection of a fracking or treating fluid into a hydrocarbon formation via existing or created perforations in the well casing. The baffle members provide a plug seat, and are each frangibly affixed to a conveying tool and have collet finger protuberances thereon. The collet finger protuberances of each baffle are of a different width, and respectively engage only one annular recess of a corresponding width in a respective landing sub. Each annular recess and/or collet finger protuberance on an uphole edge thereof has a chamfer which allows disengagement of the collet finger protuberances and thus removal of the baffle member from the well casing upon upward force being applied to the baffle member. A method of using the baffle system is also disclosed.
    Type: Application
    Filed: January 8, 2016
    Publication date: July 13, 2017
    Applicant: SC Asset Corporation
    Inventors: David NORDHEIMER, Daniel ROJAS