Class / Patent application number | Description | Number of patent applications / Date published |
166358000 | Drilling means | 18 |
20090200036 | Method for Subsea Hydrocarbon Recovery - The invention relates to a method for subsea hydrocarbon recovery in which a wellbore is drilled using a base installed on the seabed, said base comprising a drilling guide, in which at least one pipeline is to be connected to a network for storage and/or processing operations. The method according to the invention includes the following steps:
| 08-13-2009 |
20090200037 | METHOD AND ARRANGEMENT FOR REMOVING SOILS, PARTICLES OR FLUIDS FROM THE SEABED OR FROM GREAT SEA DEPTHS - A method for removing soils, particles or fluids from the seabed or from great sea depths, includes positioning a platform or a vessel above an offshore location, lowering a riser from the vessel or platform to the seabed or great depth, the riser being vented to the atmosphere, sucking soils, particles or fluids with inflow of fluid into the riser and removing them from the riser via an outlet in the riser, the outlet being at a level well below the water surface, by use of a pumping system with a flow return conduit running to a selected location, while keeping the level of the fluid in the riser at a level between the outlet and the surface corresponding with a pressure in the lower end of the riser substantially lower than the sea water pressure at the end of the riser. | 08-13-2009 |
20110005769 | ROTATING AND RECIPROCATING SWIVEL APPARATUS AND METHOD - What is provided is a method and apparatus wherein a swivel can be detachably connected to an annular blowout preventer thereby separating the drilling fluid or mud into upper and lower sections and allowing the fluid to be displaced in two stages, such as while the drill string is being rotated and/or reciprocated. In one embodiment the sleeve or housing can be rotatably and sealably connected to a mandrel. The swivel can be incorporated into a drill or well string and enabling string sections both above and below the sleeve to be rotated in relation to the sleeve. In one embodiment the drill or well string does not move in a longitudinal direction relative to the swivel. In one embodiment, the drill or well string does move longitudinally relative to the sleeve or housing of the swivel. | 01-13-2011 |
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 |
20120055678 | DUAL ACTIVITY DRILLING SHIP - Dual gradient drilling may be performed by anchoring drilling tubulars from a drilling ship on the seabed. The drilling tubulars may include an inline pump for pumping mud through another set of tubulars that actually drill the well. Then dual gradient drilling may be instituted by controlling the pressure by controlling the operation of the pump. | 03-08-2012 |
20120217017 | LASER ASSISTED SYSTEM FOR CONTROLLING DEEP WATER DRILLING EMERGENCY SITUATIONS - There is provided a high power laser riser blowout preventer system and controller for operation thereof. The system utilizes high power laser cutters that are associated with the riser and the blowout preventer to provided an integrated operation to quickly weaken or cut tubulars to address potential emergency and emergency situations that can arise during deep sea drilling. | 08-30-2012 |
20120273218 | OFFSHORE UNIVERSAL RISER SYSTEM - An offshore universal riser system may include a valve module which selectively permits and prevents fluid flow through a flow passage extending longitudinally through a riser string. An anchoring device may releasably secure the valve module in the passage. A method of constructing a riser system may include the steps of installing the valve module in the passage, and installing at least one annular seal module in the passage. The annular seal module may prevent fluid flow through an annular space between the riser string and a tubular string positioned in the passage. Drilling methods may include injecting relatively low density fluid compositions into the annular space, and selectively varying a restriction to flow through a subsea choke in a drilling fluid return line. The riser string, including housings for the various modules and external control systems, may be dimensioned for installation through a rotary table. | 11-01-2012 |
20120318519 | APPARATUS AND METHOD FOR CONNECTING FLUID LINES - An apparatus and method for controlling fluid flow in a blowout preventer. In one embodiment, an apparatus for connecting fluid lines includes a socket fluid connector and a plug fluid connector. Each connector includes a flow channel. The plug fluid connector is detachably connectable to the socket fluid connector at a connection end of the plug and socket fluid connectors such that the flow channels align. Each of the socket and plug fluid connectors includes a check valve in the flow channel. The check valve is configured to prevent fluid flow through the connector flow channels while the plug and socket fluid connectors are not connected, and to enable bidirectional fluid flow through the connector flow channels while plug and socket fluid connectors are connected. | 12-20-2012 |
20130008664 | ABOVE MUDLINE WHIPSTOCK FOR MARINE PLATFORM DRILLING OPERATIONS - A whipstock system for drilling a wellbore from a water bottom supported platform having wellbores with conductor pipes disposed through guide slots in a template on the bottom of a body of water includes a whipstock pipe extending from an equipment deck surface on the platform to a stab in sub. The whipstock pipe includes a window and j-slot mechanism for releasably engaging a scab liner. A stab in sub is configured to make mechanical connection between the whipstock pipe and a surface of a wellbore conductor pipe cut proximate the water bottom. The system includes a scab liner extending from the window to the water bottom when the stab in sub is engaged to the cut conductor pipe. The window is disposed above the water bottom. The scab liner configured to enable drilling a wellbore surface hole therethrough to a selected depth of a surface casing. | 01-10-2013 |
20130105169 | ROTATING AND RECIPROCATING SWIVEL APPARATUS AND METHOD | 05-02-2013 |
20130175043 | DOWNHOLE SWIVEL APPARATUS AND METHOD - What is provided is a method and apparatus which can be detachably connected to an annular blowout preventer thereby separating the drilling fluid or mud into upper and lower sections and allowing the fluid to be displaced in two stages, such as while the drill string is being rotated and/or reciprocated. In one embodiment the sleeve can be rotatably and sealably connected to a mandrel. The swivel can be incorporated into a drill or well string and enabling string sections both above and below the sleeve to be rotated in relation to the sleeve. In one embodiment the drill or well string does not move in a longitudinal direction relative to the swivel. In one embodiment, the drill or well string does move longitudinally relative to the sleeve of the swivel. | 07-11-2013 |
20130175044 | RETRIEVABLE SUBSEA DEVICE AND METHOD - A protective device for a blow out preventer stack (B.O.P.), and a sidetracking method using same during an oil-field milling or drilling operation requiring a window to be formed in casing ( | 07-11-2013 |
20130206423 | SYSTEMS AND METHODS FOR MANAGING PRESSURE IN A WELLBORE - A method for drilling a subsea well from a rig through a subsea wellhead below the rig includes employing a single gradient or dual gradient drilling system that includes a drill string that extends from the rig into the well and surface mud pumps for pumping drilling fluid through the drill string and into a well annulus of the well. The drilling system includes a subsea rotating device for conducting the drilling fluid from the well annulus and through a solids processing unit. A subsea pump then conducts the drilling fluid from the solids processing unit to a return line back to the rig. The surface mud pump and subsea pump are staged in coordination to trap pressure and/or remove pressure in the well annulus to maintain a selected pressure gradient in the well annulus. | 08-15-2013 |
20130264065 | ROTATING AND RECIPROCATING SWIVEL APPARATUS AND METHOD - What is provided is a method and apparatus wherein a rotating and reciprocating swivel of adjustable stroke length and shearable by ram blow out preventers can be detachably connected to an annular blowout preventer thereby separating the lower wellbore from the riser. In one embodiment the mandrel of the swivel being comprised of double box end joints and using double pin end subs to connect a plurality of such mandrel joints together. | 10-10-2013 |
20140090855 | ROTATING AND RECIPROCATING SWIVEL APPARATUS AND METHOD - What is provided is a method and apparatus wherein a swivel can be detachably connected to an annular blowout preventer thereby separating the drilling fluid or mud into upper and lower sections and allowing the fluid to be displaced in two stages, such as while the drill string is being rotated and/or reciprocated. In one embodiment the sleeve or housing can be rotatably and sealably connected to a mandrel. The swivel can be incorporated into a drill or well string and enabling string sections both above and below the sleeve to be rotated in relation to the sleeve. In one embodiment the drill or well string does not move in a longitudinal direction relative to the swivel. In one embodiment, the drill or well string does move longitudinally relative to the sleeve or housing of the swivel. | 04-03-2014 |
20140096974 | Mobile, Modular, Electrically Powered System For Use in Fracturing Underground Formations Using Liquid Petroleum Gas - The present invention provides a method and system for providing on-site electrical power to a fracturing operation, and an electrically powered fracturing system. Natural gas can be used to drive a turbine generator in the production of electrical power. A scalable, electrically powered fracturing fleet is provided to pump fluids for the fracturing operation, obviating the need for a constant supply of diesel fuel to the site and reducing the site footprint and infrastructure required for the fracturing operation, when compared with conventional systems. The treatment fluid can comprise a water-based fracturing fluid or a waterless liquefied petroleum gas (LPG) fracturing fluid. | 04-10-2014 |
20140299328 | SUBSEA WELLHEAD ASSEMBLY, A SUBSEA INSTALLATION USING SAID WELLHEAD ASSEMBLY, AND A METHOD FOR COMPLETING A WELLHEAD ASSEMBLY - A subsea wellhead assembly comprising a casing housing and a casing extending down inside the well, and a tubing hanger. The tubing hanger comprises first and second valves, each valve being a fail safe valve. | 10-09-2014 |
20150315860 | OFFSHORE DRILLING INSTALLATION AND METHOD FOR OFFSHORE DRILLING - Offshore drilling installation comprising a platform selected from the group comprising a vessel, a pontoon, a jack-up, and further comprising a drill string drivingly connected with said platform and optionally provided with a heave motion compensator, wherein at its lower end the drill string is pro-vided with a drill bit, and wherein a seabed template suspended with lift wires from the platform is placed on a seabed, and wherein clamping means mounted in the seabed template are provided for fixing the drill string relative to the seabed template, which clamping means are embodied as a chuck which is arranged for clamping the drill string whilst enabling the drill string's rotation. | 11-05-2015 |