Matches 1 - 50 out of 184 1 2 3 4 >


Match Document Document Title
9027217 Blowout preventer head removal tools and methods  
Specialized tools and methods are presented for use on blowout preventers on oil and gas rigs. The specialized tools releseably attach to a threaded, blowout-preventer head to remove the same. In...
9022131 Hydrodynamic journal bearing flow control bushing for a rotating control device  
A rotating control device comprises an outer housing having a bore for receiving a tubular member. An inner housing and a piston assembly are rotatably disposed within the outer housing. An...
9022104 Blowout preventer blade assembly and method of using same  
Techniques for shearing a tubular of a wellbore penetrating a subterranean formation with a blowout preventer are provided. The blowout preventer has a housing with a hole therethrough for...
9016362 Polish rod locking clamp  
A pump drive head for a progressing cavity pump comprises a top mounted stuffing box rotatably disposed around a compliantly mounted standpipe with a self or manually adjusting pressurization...
9016373 Magnetorheological blowout preventer  
A Blowout Preventer comprising a housing, one or more magnets and a magnetic fluid is described. More particularly, a Magnetorheological Blowout Preventer with a Magnetorheological Ram Head that...
9004157 Blowout preventer  
A blowout preventer comprising: a main body comprising a seal seating profile, one or more bonnet guideways, and one or more slide guideways; a bonnet attached to the main body, wherein the bonnet...
8978751 Method and apparatus for sealing a wellbore  
Methods and apparatuses for sealing a wellbore are provided. A seal assembly carried by a pair of opposing ram blocks of a blowout preventer is provided. The seal assembly includes a pair of seals...
8944403 Blowout preventer with pressure-isolated operating piston assembly  
A ram-type blowout preventer including an operating piston assembly isolated from wellbore pressure effects is provided. In one embodiment, a blowout preventer includes piston coupled to a ram by...
8919430 Blowout container  
A system for containing and recovering from the blowout of an oil or gas well. The blowout containment (BOC) system is operable in place of, or as a failsafe alternative to, standard blowout...
8905141 Subsea operating valve connectable to low pressure recipient  
A valve useable in an undersea apparatus for generating a force for closing a blowout preventer (BOP) based on a pressure difference between a low pressure recipient and ambient pressure, an...
8899338 Method and apparatus for installing a wireline for logging or other operations in an under-balanced well  
An improved apparatus and a method to insert a wireline through a blow out preventer to log an underbalanced open hole well without killing the well or causing formation damage while maintaining...
8893774 Multi-component tubular coupling for wellhead systems  
A multi-component tubular coupling is provided for wellhead assemblies. In one embodiment, the multi-component tubular coupling may include a first tubular member, a landing ring, and a second...
8886504 Systems and methods for modeling and triggering safety barriers  
Modeling and triggering safety barriers. At least some of the illustrative embodiments are a non-transitory machine-readable storage medium includes executable instructions that, when executed,...
8844613 Shear blade and method of attachment to shear rams  
A shear blade attached to a ram block. At least one bolt passage is formed at an angle at the top of the ram block. A bolt passage is formed in the shear blade that corresponds with the bolt...
8844898 Blowout preventer with ram socketing  
A blowout preventer and seal structure for a blowout preventer, the seal structure having a the body with two front faces including a first face and a second face, a projection projecting out from...
8807516 Blowout preventer with rope packing seal  
A blowout preventer (BOP) is provided in which each ram includes a primary rope packing seal formed from a first length of rope packing extending horizontally across the front face, rearwardly and...
8807219 Blowout preventer blade assembly and method of using same  
A blade assembly of a blowout preventer for shearing a tubular of a wellbore penetrating a subterranean formation is provided. The blowout preventer has a housing with a hole therethrough for...
8800646 Safety device for retrieving component within wellhead  
A system is provided that includes a safety device configured to mount in a mineral extraction system and block axial movement of a plug in the mineral extraction system while the plug is released...
8794308 Blowout preventer and flow regulator  
A blowout preventer and flow regulator, comprising blocks, each having a channel and plates to close it. The blocks are placed over a pipe through which oil or other fluid is escaping, so that the...
8789606 System for controlling functions of a subsea structure, such as a blowout preventer  
A system for controlling functions of a subsea structure, such as a blowout preventer, has a plurality of actuators respectively affixed to a plurality of controls of the subsea structure, and an...
8783643 Blowout preventer and rams  
A ram type blowout preventer having a seal on each ram, extending across the front face, rearwardly and then over the top portion or the bottom portion of the ram. Each ram forms a leading edge...
8770274 Shear seal blowout preventer  
A shear/seal ram provides a knife edge at the shearing edge and the knife edge is inclined to minimize the cutting force required and to leave a clean cut edge. The knife edge is presented in an...
8770298 Safety mechanism for blowout preventer  
Blowout preventer (BOP) stack and lower marine riser package for sealing an undersea well. The blowout preventer stack includes a frame extending along an axis and configured to be attached to a...
8770541 Sealing apparatus and method  
A sealing apparatus and method is disclosed, particularly for sealing around an elongate member which passes through a throughbore of a valve device, the apparatus having an upper sealing element...
8727303 Variable bore packer for a blowout preventer  
A variable bore packer used in a blowout preventer to form a seal against different diameter tubular members for oil and gas drilling operations. The variable bore packer includes a packer member...
8720476 Portable ram block changer  
An apparatus for engaging and moving a ram block. In some embodiments, the apparatus, or ram block changer, includes a support bracket coupled to a blowout preventer and an articulated arm...
8720579 Emergency blowout preventer (EBOP) control system using an autonomous underwater vehicle (AUV) and method of use  
An autonomous underwater vehicle (AUV) may be programmed and launched to interface with an emergency blowout preventer which has been fitted, either when new or retrofitted, with an emergency BOP...
8720564 Tubular severing system and method of using same  
Techniques for severing a tubular of a wellbore penetrating a subterranean formation are provided. A blade is extendable by a ram of a blowout preventer positionable about the tubular. The blade...
8720565 Tubular severing system and method of using same  
A method for severing a tubular of a wellbore is provided. The method involves positioning a blowout preventer about a tubular, the blowout preventer having a plurality of rams slidably...
8720578 Telescoping orientation joint  
An orientation joint for a subsea landing string equipped to maintain both unitary and telescoping configurations. For example, the joint may maintain a unitary configuration to provide continuous...
8695691 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...
8640775 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...
8567490 Shear seal blowout preventer  
A shear/seal ram provides a knife edge at the shearing edge and the knife edge is inclined to minimize the cutting force required and to leave a clean cut edge. The knife edge is presented in an...
8555979 Blowout preventer with a bernoulli effect suck-down valve  
The present invention is a blowout preventer including a large funnel. The large end of the funnel is placed over a well pipe (or other pipe) through which oil (or other fluid) is blowing out. The...
8544538 System and method for sealing a wellbore  
Systems and methods for sealing a wellbore are provided. The system is for sealing a wellbore having a pipe therein for the passage of fluid therethrough. The system is provided with a BOP...
8540017 Method and system for sealing a wellbore  
Systems and methods for sealing a wellbore are provided. The wellbore has a pipe therein for the passage of fluid therethrough. The system is provided with a BOP positionable about the pipe and at...
8511387 Made-up flange locking cap  
A cap is lowered onto and secured to a subsea member with an external flange, effecting a seal between the external flange and cap. The cap includes a tubular outer body defining a cavity, and a...
8505870 Shear blade geometry and method  
A pair of shear blades and a blowout preventer having the pair of shear blades. The shear blades are configured to cut a tubular inside the blowout preventer. The shear blades have different...
8499838 Subsea locking connector  
A connector is lowered onto and secured to a subsea member, effecting a seal between subsea member and the connector. The connector includes an outer body defining a cavity, and an inner body...
8490701 Methods of releasing at least one tubing string below a blow-out preventer  
A method of controlling a blowout comprises: releasing at least a first tubing string into a portion of a well system, wherein the step of releasing comprises activating a release table; and...
8464785 Pipe guide arms for blind shear rams  
A pipe shear ram assembly has a housing having a bore extending vertically therethrough for the passage of a pipe string. Ram blocks have blades positioned such that one slides over the other when...
8448915 Increased shear power for subsea BOP shear rams  
The method of providing a desired motive force for one or more rams of a subsea blowout preventer as a function of a desired pressure differential across one or more pistons on the subsea blowout...
8443879 Blowout preventer with shearing blades  
The disclosure provides a blowout preventer (BOP) system with a ram having a shear blade with a shear blade profile to shear a tubular member disposed in the BOP. The shear blade profile can...
8444109 Blowout preventer translating shaft locking system  
The disclosure provides a blowout preventer (BOP) system with an actuator for opening and closing a ram. The actuator includes a locking system having a clutch piston to operate a clutch having...
8443880 Blowout preventer with shearing blades  
The disclosure provides a blowout preventer (BOP) system with a ram having a shear blade with a shear blade profile to shear a tubular member disposed in the BOP. The shear blade profile can...
8418767 Blowout preventer with a Bernoulli effect suck-down valve  
The present invention is a blowout preventer including a large frustoconical funnel. The large end of the funnel is placed over a well pipe (or other pipe) through which oil (or gas or other...
8408514 Lock mechanism for blowout preventer and method  
A blowout preventer for sealing a well includes a body having first and second chambers. The first chamber extends substantially perpendicular to and intersecting the second chamber, and the body...
8403290 Wiper seal assembly  
A hydraulically-operated annular blowout preventer, for controlling a wellbore and comprising a wiper seal assembly, is described. The wiper seal assembly comprises a discrete wiper seal, for...
8397827 Reducing trips in well operations  
A well system can include a tubular string in a blowout preventer stack, a releasable hanger of the tubular string supported by a support surface, and the released hanger permitting the tubular...
8397825 Hydraulic lubricating system and method of use thereof  
A hydraulic lubricator assembly includes a spool for enclosing a downhole tool, wherein the spool comprises an upper end and a lower end. The hydraulic lubricator assembly further includes a...

Matches 1 - 50 out of 184 1 2 3 4 >