Patent application number | Description | Published |
20080302536 | Multi-Deployable Subsea Stack System - Methods for deploying a subsea blowout preventer stack system comprising a lower marine riser package, a blowout preventer stack with a first ram blowout preventer, and an additional blowout preventer package releasably coupled to the blowout preventer stack and comprising a second ram blowout preventer. The subsea blowout preventer stack assembly can be deployed by coupling a drilling riser to the lower marine riser package that is releasably connected to the blowout preventer stack. The lower marine riser package and blowout preventer stack are then toward a subsea wellhead and then landed on the additional blowout preventer package that is coupled to the subsea wellhead. | 12-11-2008 |
20110147002 | Subsea Differential-Area Accumulator - An accumulator for a subsea blowout preventer unit including a blowout preventer includes a body. The body includes a hydraulic fluid chamber and a gas chamber. The hydraulic fluid chamber has a smaller inner diameter than the gas chamber. The accumulator further includes a hydraulic fluid port in fluid communication between the hydraulic fluid chamber and the subsea blowout preventer, a hydraulic piston slidably and sealingly mounted in the hydraulic fluid chamber, and a charge piston slidably and sealingly mounted in the gas chamber. A pressure port receives pressure to provide a force on the opposite side of the charge piston from the hydraulic piston. | 06-23-2011 |
20110155386 | Multi-Deployable Subsea Stack System - Methods for deploying a subsea blowout preventer stack system comprising a lower marine riser package, a blowout preventer stack with a first ram blowout preventer, and an additional blowout preventer package releasably coupled to the blowout preventer stack and comprising a second ram blowout preventer. The subsea blowout preventer stack assembly can be deployed by coupling a drilling riser to the lower marine riser package that is releasably connected to the blowout preventer stack. The lower marine riser package and blowout preventer stack are then toward a subsea wellhead and then landed on the additional blowout preventer package that is coupled to the subsea wellhead. | 06-30-2011 |
20120145406 | BOP Stack with a Universal Intervention Interface - Systems for accessing a well bore including a BOP stack with a universal intervention interface are disclosed. In some embodiments, the system includes a BOP stack and a valve assembly. The BOP stack has a throughbore and is installable on a well such that the throughbore is in fluid communication with the well bore. The valve assembly is coupled to the BOP stack and includes a fluid flowpath in fluid communication with the BOP stack throughbore, two valves connected in series and disposed along the fluid flowpath, the valves operable to control flow through the fluid flowpath, and a ROV panel including ports accessible by a ROV for operation of the two valves. | 06-14-2012 |
20120199360 | Subsea Connection Apparatus for a Surface Blowout Preventer Stack - A subsea connection apparatus to allow connecting a surface blowout preventer stack and riser to a subsea wellhead is disclosed. The subsea connection apparatus uses a single cavity blowout preventer with a set of shearing blind rams. Hydraulically actuated wellhead connectors are secured to the top and bottom of the blowout preventer to allow connection to a subsea wellhead below the subsea connection apparatus and a well head hub profile on the lower end of a riser above the apparatus. A control system can operate both of the hydraulically actuated connectors and the blowout preventer independently. A frangible bore protector is disposed in the bore of the blowout preventer to protect the shearing blind rams from pipe, tools, and fluids being passed through the blowout preventer and can be sheared by the shearing blind rams along with any drill pipe in the bore. | 08-09-2012 |
20130118755 | Blowout Preventer Shut-In Assembly of Last Resort - A system for drilling and/or producing a subsea wellbore comprises a primary BOP comprising a primary ram BOP. In addition, the system comprises a secondary BOP releasably connected to the primary BOP, the secondary BOP comprising a secondary ram BOP. The primary rain BOP is actuatable by a first control signal. The secondary ram BOP is actuatable by a second control signal. The secondary rain BOP is not actuatable by the first control signal. | 05-16-2013 |
20130126764 | Multi-Deployable Subsea Stack System - Methods for deploying a subsea blowout preventer stack system comprising a lower marine riser package, a blowout preventer stack with a first ram blowout preventer, and an additional blowout preventer package releasably coupled to the blowout preventer stack and comprising a second ram blowout preventer. The subsea blowout preventer stack assembly can be deployed by coupling a drilling riser to the lower marine riser package that is releasably connected to the blowout preventer stack. The lower marine riser package and blowout preventer stack are then toward a subsea wellhead and then landed on the additional blowout preventer package that is coupled to the subsea wellhead. | 05-23-2013 |
20140231088 | BOP Stack with a Universal Intervention Interface - Systems for accessing a well bore including a BOP stack with a universal intervention interface are disclosed. In some embodiments, the system includes a BOP stack and a valve assembly. The BOP stack has a throughbore and is installable on a well such that the throughbore is in fluid communication with the well bore. The valve assembly is coupled to the BOP stack and includes a fluid flowpath in fluid communication with the BOP stack throughbore, two valves connected in series and disposed along the fluid flowpath, the valves operable to control flow through the fluid flowpath, and a ROV panel including ports accessible by a ROV for operation of the two valves. | 08-21-2014 |
20140360731 | Blowout Preventer Shut-In Assembly of Last Resort - A system for drilling and/or producing a subsea wellbore comprises a primary BOP comprising a primary ram BOP. The secondary BOP is connectable to a subsea wellhead such that the secondary BOP is positioned between the primary BOP and the subsea well-head, in which the secondary BOP comprises a shear ram BOP. | 12-11-2014 |
Patent application number | Description | Published |
20090103448 | APPARATUS, METHOD AND COMPUTER-READABLE STORAGE MEDIUM FOR CALCULATING THROUGHPUT REQUIREMENTS OF A NETWORK - An apparatus, method and computer-readable storage medium are provided for calculating an estimated throughput requirement of a network, such as to facilitate selecting the minimum bandwidth, maximum bandwidth or some other appropriate bandwidth for providing network services to a customer accessing that network. In this regard, a method of calculating a throughput requirement of a network includes receiving a bandwidth requirement. The method also includes calculating a data link-layer frame rate requirement based on the bandwidth requirement and a frame size, where the calculated frame rate requirement is limited by a line rate for transmission of data packets across a core network. In addition, the method includes calculating a data link-layer throughput requirement based on the calculated frame rate requirement and the frame size. | 04-23-2009 |
20090129289 | SYSTEM, METHOD AND COMPUTER-READABLE STORAGE MEDIUM FOR CALCULATING ADDRESSING AND BANDWIDTH REQUIREMENTS OF A NETWORK - Apparatuses, methods and computer-readable storage mediums are provided for calculating estimated addressing and bandwidth requirements of a customer domain, such as to facilitate designing the respective domain. A method includes selecting customer premises equipment (CPE) of a domain including a plurality of CPEs, where each CPE includes one or more devices, and one of the one or more devices include an interface with which the domain communicates with the respective CPE. The method also includes determining if the interface of the selected CPE comprises a router, and calculating an addressing requirement of the selected CPE, where the addressing requirement includes a number of device addresses for the selected CPE. The method may additionally or alternatively include analyzing traffic patterns of the selected CPE with respect to one or more other CPEs, and based on the analysis, calculating a bandwidth requirement of the selected CPE. | 05-21-2009 |
20110299420 | SYSTEM, METHOD AND COMPUTER-READABLE STORAGE MEDIUM FOR CALCULATING ADDRESSING AND BANDWIDTH REQUIREMENTS OF A NETWORK - Apparatuses, methods and computer-readable storage mediums are provided for calculating estimated addressing and bandwidth requirements of a customer domain, such as to facilitate designing the respective domain. A method includes selecting customer premises equipment (CPE) of a domain including a plurality of CPEs, where each CPE includes one or more devices, and one of the one or more devices include an interface with which the domain communicates with the respective CPE. The method also includes determining if the interface of the selected CPE comprises a router, and calculating an addressing requirement of the selected CPE, where the addressing requirement includes a number of device addresses for the selected CPE. The method may additionally or alternatively include analyzing traffic patterns of the selected CPE with respect to one or more other CPEs, and based on the analysis, calculating a bandwidth requirement of the selected CPE. | 12-08-2011 |