Patents Assigned to PTT Exploration and Production Public Company Limited
  • Patent number: 11938467
    Abstract: The present invention provides a catalyst system for producing cyclic carbonates from carbon dioxide (CO2) and epoxide-based compounds comprising: a pre-catalyst; and a co-catalyst wherein said pre catalyst is BiCl3 and said co-catalyst is selected from tetra-n-butylammonium bromide (TBAB), tetra-n-butylammonium iodide (TBAI), tetra-n-butylphosphonium bromide (PBu4Br), tetra-n-butylphosphonium iodide (PBu4I) or mixtures thereof.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: March 26, 2024
    Assignee: PTT EXPLORATION AND PRODUCTION PUBLIC COMPANY LIMITED
    Inventors: Taradon Piromchart, Valerio D'Elia
  • Patent number: 11938468
    Abstract: The present invention provides a catalyst system for producing cyclic carbonates comprising: a pre-catalyst, which is BiCl3 having amounts in the range from 5 to 10% by weight of silica support; a compound having formula (I) wherein: Y is selected from bromide (Br?) or iodide (I?); R1, R2, and R3 are methyl group or R1, R2, and R3 are taken together to form a heteroaryl ring having formula (II) and a silica (SiO2) support.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: March 26, 2024
    Assignee: PTT EXPLORATION AND PRODUCTION PUBLIC COMPANY LIMITED
    Inventors: Taradon Piromchart, Valerio D'Elia
  • Patent number: 10814364
    Abstract: Embodiments relate generally to systems and methods for decommissioning a pipeline. The system may comprise a mechanical assembly and chemical assembly. The mechanical assembly may include a main body and contact assembly. When the mechanical assembly is provided in the pipeline, the contact assembly is configurable to contact with the pipeline's interior wall. The chemical assembly may be arranged serially in line with the mechanical assembly. The chemical assembly may include a front section having a cross-sectional portion configurable to resemble the cross-section of the pipeline. The chemical assembly may also include a rear section having a cross-sectional portion. The front and rear sections may be arranged in such a way that, when the chemical assembly is provided in the pipeline, the cross-sectional portions of the front and rear sections cooperate with the pipeline's interior wall to form a chamber operable to receive and house a removal medium.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: October 27, 2020
    Assignee: PTT EXPLORATION AND PRODUCTION PUBLIC COMPANY LIMITED
    Inventors: Suchada Punpruk, Chatawut Chanvanichskul, Passaworn Silakorn, Patara Limpanachaipornkul, Chanya Thammawong
  • Patent number: 10780472
    Abstract: System and method for decommissioning a pipeline. The system comprises mechanical and chemical assemblies. The mechanical assembly includes a main body and a contact assembly. When the mechanical assembly is provided in the pipeline, the contact assembly is configurable to contact with the interior wall of the pipeline. The chemical assembly is arranged serially in line with the mechanical assembly. The chemical assembly includes a front section having a cross-sectional portion and a rear section having a cross-sectional portion. The front and the rear section are arranged in such a way that the cross-sectional portions of the front and the rear section cooperate with the interior wall of the pipeline to form a chamber to house a removal medium. The system and method can effectively and efficiently remove most or all of such residual mercury and/or other toxic substance from the interior wall of the pipeline before abandonment.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: September 22, 2020
    Assignee: PTT Exploration and Production Public Company Limited
    Inventors: Suchada Punpruk, Chatawut Chanvanichskul, Passaworn Silakorn, Patara Limpanachaipornkul, Chanya Thammawong
  • Patent number: 10155570
    Abstract: Embodiments relate generally to a turret system for use in a floating vessel. The turret system may comprise a turret body and windlass subsystem. The turret system may comprise top and bottom surfaces, first and second mooring line storage sections, and first and second mooring line channel sections. Each mooring line storage section may include an opening and cavity. Each opening is operable to receive a mooring line. The first and second mooring line channel sections may be separate elongated passageways for first and second mooring lines, respectively, to be directed through the turret body and an exterior of the floating vessel without coming into contact with one another. The windlass subsystem may comprise a rotatable member, and configured to be transportable between locations. When the windlass assembly is configured to be secured to the turret body, the windlass assembly is configurable to control a movement of a mooring line.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: December 18, 2018
    Assignee: PTT Exploration and Production Public Company Limited
    Inventor: Manit Aimcharoenchaiyakul
  • Patent number: 10081924
    Abstract: Example embodiments relate to apparatuses, systems, and methods for securing an offshore platform to a bottom of a body of water comprising a shear assembly and a sleeve assembly. The shear assembly is operable to secure to the offshore platform at a first end and having a first connector portion at a second end. The sleeve assembly comprises a sleeve body forming an interior opening, the interior opening operable to receive at least a pile. The sleeve assembly further comprises a second connector portion secured to the sleeve body, the second connector portion securable to and un-securable from the first connector portion of the shear assembly.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: September 25, 2018
    Assignee: PTT Exploration and Production Public Company Limited
    Inventor: Sarayut Uiyyasathian
  • Patent number: 9968867
    Abstract: Example embodiments relate to a separator system comprising a compartment body defining an interior cavity, the interior cavity formed by interior walls of the compartment body. The separator system may further comprise an input section operable to receive an input mixture for housing in the interior cavity. The separator system may further comprise an output section. The separator system may further comprise a particulate-directing subsystem. The particulate-directing subsystem may comprise a disturbance assembly arranged along at least a bottom portion of the interior cavity. The disturbance assembly may comprise at least one rotary member operable to rotate in a first rotary direction and a second rotary direction. The particulate-directing subsystem may further comprise a discharge assembly arranged proximate to the output section. The discharge assembly may be configured so as to encourage particulates of the input mixture present in the interior cavity to pass through the output section.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: May 15, 2018
    Assignee: PTT Exploration and Production Public Company Limited
    Inventor: Somchai Warintarawat
  • Patent number: 9828070
    Abstract: Embodiments relate generally to a turret system for use in an FPSO vessel. The turret system may comprise a turret body and windlass subsystem. The turret system may comprise a top and bottom surface, first and second mooring line storage sections, and first and second mooring line channel sections. Each mooring line storage section may include an opening and cavity. Each opening is operable to receive a mooring line. Each mooring line channel section may be an elongated passageway for a mooring line to pass between an exterior of the FPSO vessel and a mooring line storage section. The windlass subsystem may comprise a rotatable member, and configured to be transportable between a plurality of locations. When the windlass assembly is configured to be secured to the turret body, the windlass assembly is configurable to control a movement of a mooring line.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: November 28, 2017
    Assignee: PTT EXPLORATION AND PRODUCTION PUBLIC COMPANY LIMITED
    Inventor: Manit Aimcharoenchaiyakul
  • Patent number: 9803460
    Abstract: Example embodiments include systems for use in a wellhead platform. The system may comprise a separator subsystem, a scrubber subsystem, a first stage compressor subsystem, and a second stage compressor subsystem. The separator subsystem may comprise a separator inlet section for receiving multi-phase raw mixtures, a separator container body for housing the received multi-phase raw mixture, and a separator gas outlet section for separating gas. The scrubber subsystem may comprise a scrubber inlet section connected to the separator gas outlet section, a scrubber container body, and a scrubber gas outlet section for separating gas. The first stage compressor subsystem may be operable to receive gas separated from the scrubber subsystem, compress the received gas, and output the compressed gas. The second stage compressor subsystem may be operable to receive compressed gas from the first stage compressor subsystem, further compress the received compressed gas, and output the further compressed gas.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: October 31, 2017
    Assignee: PTT Exploration and Production Public Company Limited
    Inventors: Thitinun Sillapacharn, Choosak Kokanutranont, Chanwith Buntoengpesuchsakul, Tanadcha Therdwikrant, Peeradet Aroonsangob
  • Publication number: 20170159421
    Abstract: Example embodiments include systems for use in a wellhead platform. The system may comprise a separator subsystem, a scrubber subsystem, a first stage compressor subsystem, and a second stage compressor subsystem. The separator subsystem may comprise a separator inlet section for receiving multi-phase raw mixtures, a separator container body for housing the received multi-phase raw mixture, and a separator gas outlet section for separating gas. The scrubber subsystem may comprise a scrubber inlet section connected to the separator gas outlet section, a scrubber container body, and a scrubber gas outlet section for separating gas. The first stage compressor subsystem may be operable to receive gas separated from the scrubber subsystem, compress the received gas, and output the compressed gas. The second stage compressor subsystem may be operable to receive compressed gas from the first stage compressor subsystem, further compress the received compressed gas, and output the further compressed gas.
    Type: Application
    Filed: June 9, 2015
    Publication date: June 8, 2017
    Applicant: PTT EXPLORATION AND PRODUCTION PUBLIC COMPANY LIMITED
    Inventors: Thitinun Sillapacharn, Choosak Kokanutranont, Chanwith Buntoengpesuchsakul, Tanadcha Therdwikrant, Peeradet Aroonsangob
  • Publication number: 20170113232
    Abstract: Example embodiments relate to a separator system comprising a compartment body defining an interior cavity, the interior cavity formed by interior walls of the compartment body. The separator system may further comprise an input section operable to receive an input mixture for housing in the interior cavity. The separator system may further comprise an output section. The separator system may further comprise a particulate-directing subsystem. The particulate-directing subsystem may comprise a disturbance assembly arranged along at least a bottom portion of the interior cavity. The disturbance assembly may comprise at least one rotary member operable to rotate in a first rotary direction and a second rotary direction. The particulate-directing subsystem may further comprise a discharge assembly arranged proximate to the output section. The discharge assembly may be configured so as to encourage particulates of the input mixture present in the interior cavity to pass through the output section.
    Type: Application
    Filed: October 27, 2015
    Publication date: April 27, 2017
    Applicant: PTT EXPLORATION AND PRODUCTION PUBLIC COMPANY LIMITED
    Inventor: Somchai Warintarawat
  • Patent number: 8191624
    Abstract: A completion system delivers lifting gas supplied from the surface via a casing annulus through the packer for injecting to the wellbore at bottom hole. So, lifting gas maximizes hydrocarbon producing from a subterranean well while maintaining integrity and serviceability as a typical gas lift well. More specifically, a single completion system uses the same tubing string for both producing the well and delivering lifting gas to the wellbore at downhole. The top section of the tubing is used for producing the well, while the bottom section of the tubing is used for delivering lifting gas for injecting at bottom hole. The lifting gas will be injected to the wellbore proximately at perforation intervals for helping unloading liquid and producing the well. The use of modified equipment named “TK Bypass Mandrel” and “JP Bypass Nipple Sub” allows delivering and controlling of the lifting gas for injecting at bottom hole via a single tubing string.
    Type: Grant
    Filed: August 11, 2009
    Date of Patent: June 5, 2012
    Assignee: PTT Exploration and Production Public Company Limited.
    Inventors: Pramote Phloi-montri, Chatchai Kongdachudomkul, Thanawee Kreethapon, Pattana Pittrapan, Suwin Sompopsart, Wararit Toempromraj
  • Patent number: 7770637
    Abstract: The completion system for delivering lifting gas supplied from surface via a casing annulus thru the packer for injecting to the wellbore at bottom hole as lifting gas for maximizing hydrocarbon producing from a subterranean well while maintaining integrity and serviceability as a typical gas lift well. A single completion, which uses the same tubing string for both producing the well and delivering lifting gas to the wellbore at downhole. The top section of the tubing is used for producing the well while the bottom section of the tubing is used for delivering lifting gas for injecting at bottom hole. The lifting gas will be injected to the wellbore proximately at perforation intervals for helping unloading liquid and producing the well. The use of modified equipment named “TK Bypass Mandrel” and “JP Bypass Nipple Sub” allows delivering and controlling of the lifting gas for injecting at bottom hole via a single tubing string.
    Type: Grant
    Filed: October 12, 2007
    Date of Patent: August 10, 2010
    Assignee: PTT Exploration and Production Public Company Limited
    Inventors: Pramote Phoi-montri, Jose Piedras, Chatchai Kongdachudomkul, Thanawee Kreethapon
  • Publication number: 20090095467
    Abstract: The present invention is about the completion system for delivering lifting gas supplied from surface via a casing annulus thru the packer for injecting to the wellbore at bottom hole as lifting gas for maximizing hydrocarbon producing from a subterranean well while maintaining integrity and serviceability as a typical gas lift well. The present invention is a single completion, which uses the same tubing string for both producing the well and delivering lifting gas to the wellbore at downhole. The top section of the tubing is used for producing the well while the bottom section of the tubing is used for delivering lifting gas for injecting at bottom hole. The lifting gas will be injected to the wellbore proximately at perforation intervals for helping unloading liquid and producing the well. The use of modified equipment named “TK Bypass Mandrel” and “JP Bypass Nipple Sub” allows delivering and controlling of the lifting gas for injecting at bottom hole via a single tubing string.
    Type: Application
    Filed: October 12, 2007
    Publication date: April 16, 2009
    Applicant: PTT EXPLORATION AND PRODUCTION PUBLIC COMPANY LIMITED
    Inventors: Pramote Phoi-montri, Jose Piedras, Chatchai Kongdachudomkul, Thanawee Kreethapon