Other

Reel Power Licensing Corp.

Vetco Offshore Industries, Inc.

Smith International, Inc.

Mobil Oil Corporation

Superior Energy Services, LLC

Anadarko Petroleum Corporation

Oil States Industries Limited

Brown Oil Tools, Inc.

Vetco, Inc.

Schlumberger Technology Corporation

Bp Corporation North America Inc.

Vetco Gray Inc.

Cameron Iron Works Usa, Inc.

Continental Emsco Company

Benton Frederick Baugh

James R Crawford

Christopher David Rekieta

Narayana N Panicker

Michael Leroy Spence

Ali G Kadaster

Stephanie Tritchler

Craig Watson

Keith K Millheim

Herman O Henderson, Jr

John H Fowler

Gary Donald Thompson

Nathan Schmidt

James Mlodzianowski

Marc Moszkowski

Frank C Adamek

David C Riggs

Edward J Arlt, Iii

Carl Denver Parker

Jim Bob Crawford

Jean-Paul Ribeyre

Frederick M Leicht

Arthur Ahlstone

Harish C Palany

Paul G Vander Linden, Iii

Robert Terry Simmons

Mark Moszkowski

William Richard Schmerheim

James Robert Crawford

Max Charles William Clarke

James R Cameron

Scott L Coates

Keith K Millhelm

Gerard J-m Lux

In a blowout preventer body having a central bore a method of reducing the size and weight of the blowout preventer body while maintaining an acceptable stress level at working pressure comprising machining a portion of the blowout preventer body to proximate the final dimensions, pressuring the blowout preventer body to a higher pressure than the working pressure of the blowout preventer body to yield high stress areas of the blowout preventer body, and relieving the higher pressure from the blowout preventer body such that when the blowout preventer body returns to the non-pressured state the high stress areas will retain compressive stresses and when the blowout preventer body is then pressurized to the working pressure of the blowout preventer body the stresses will be at an acceptable stress level.

Method for autofrettage on a blowout preventer body

In a subsea blowout preventer stack system having a structural system and one or more accumulators providing a pressurized hydraulic supply wherein the accumulators comprise a compressed gas supply and a hydraulic fluid chamber in one or more vertical bottles, a method of using the one or more vertical bottles of the accumulators as structural members of the structural system.

Method for BOP stack structure

The method of preventing pressures higher than a predetermined pressure in the front ram seals of blowout preventer rams comprising providing blowout preventer rams suitable for sealing across the bore of a blowout preventer stack, providing seals on the blowout preventer rams which sealingly isolate the bore area below or upstream of the blowout preventer rams from the area above or downstream of the blowout preventer rams, providing a passageway from the front to the rear of the blowout preventer rams to vent the upstream or higher pressures to the rear of the blowout preventer rams, and communicating the resilient seal material in the front ram seals with a pressure release piston which will relieve the pressure at the predetermined pressure.

Method for controlling pressure in blowout preventer ram seals

The method of providing a clamping connection comprising providing one or more clamping hubs, providing two or more clamping segments to engage the clamping hubs, constraining the clamping segments to move approximately radially with respect to the clamp hubs, providing a tension band around the clamping segments which slides circumferentially relative to the clamping segments, and adjusting the ratio of the contact area of the tension band to the clamping hubs and the area of the clamping hubs to compensate for the difference in loading on the clamping hub due to sliding friction between the tension band and the clamping hubs.

Drilling riser connector

In a blowout preventer central bore and a central bore axis with an oval ram cavity having a ram cavity axis having one or more horizontal interface portions between the ram cavity and an actuator body, a method of connecting the actuator body to the ram cavity comprising providing one or more locking bar receptacles passing through one or more of the planes of the one or more horizontal interface portions of the ram cavity, providing one or more locking bar receptacles passing through one or more of the planes of the one or more horizontal interface portions of the actuator body, and providing one or more locking bars in one or more of the one or more locking bar receptacles in both the ram cavity and the actuator body.

Method for retaining blowout preventer actuator bodies

The invention provides a remotely activated connecting device for connecting a wellhead and or Christmas tree positioned on a wellhead to a fracing tree that may comprise a collet system for selectively engaging and disengaging from a threaded, spiral, and or flange shoulder that may utilize hydraulics for same.

Remotely activated connection device for a spiral shoulder connection

In a hydraulic connector for connecting a portion of the hydraulic connector to a mandrel and having a seal ring with an external groove to seal between the hydraulic connector and the mandrel the method of providing a locking segments having an inner position and a radially outward second position, providing when the latches are in a first latch position a portion is engaged with the locking segments in the radially inward position and a second latch portion is disengaged from the external groove of the seal ring to release the seal ring, and providing when the one or more latches are in a second latch position the first latch portion is engaged with one or more of the locking segments in the radially outward position the second latch portion is engaged with the external groove of the seal ring to retain the seal ring.

Method for seal ring retention

The method of using the flow within a pipeline to clean the inner wall of the pipeline including placing the cleaning pig into the pipeline to be cleaned at a first location, using a restraining rope or cable to cause the cleaning pig to move along the pipeline at a speed slower than the speed of the flow within the pipeline and thereby causing a pressure differential between the upstream side and the downstream side of the cleaning pig, providing one or more jetting nozzles and using the pressure differential to jet a portion of the flow within the pipeline through the one or more jetting nozzles onto the inner wall of the pipeline while providing a flow area through the cleaning pig to bypass the portion of the flow which does not pass through the one or more jetting nozzles.

Method of using pipeline flow for pipeline cleaning

In a subsea blowout preventer stack system with a lower marine riser package with a lower marine riser connector and choke and/or kill lines, and a lower blowout preventer stack with a mandrel on the upper end and choke and/or kill lines connection to choke and kill valves, a method of porting the choke, kill lines, hydraulic lines and electrical lines vertically through the wall of the lower blowout preventer stack mandrel.

Method for integrating choke lines, kill lines, and hydraulic control lines into a mandrel

In a subsea blowout preventer stack system connected to the surface with a drilling riser and with one or more control pods for control of the subsea blowout preventer stack, a method of providing a control umbilical of near neutral weight in the ocean water to provide control signals to the one or more control pods comprising providing a core of conductors such as wires and optical fibers, providing a flexible outer core comprising a mixture of resilient material and buoyant materials, providing a connector on the lower end of the umbilical.

Method for lightweight subsea blowout preventer umbilicals

The present invention provides an improved hydraulically activated clamping device for connecting a wellhead and or Christmas tree positioned on a wellhead to a fracing tree that may comprise a connector body; a mandrel body; two or more clamp segments; two or more actuating bolts; a seal ring to provide sealing engagement between said connector body and said mandrel body; one or more motors driving each of said two or more actuating bolts; and control means to reduce or retard the power to the first of said two or more actuating bolts to release and prevent its further movement until the other of said actuating bolts release also.

Hydraulically activated connection device

A detention pond for the passive temporary storage of detained water during a potential flooding event near a river, stream or bayou where the depth and therefore the volume of the detention pond is not set by the elevation of the normally flowing water in said river, stream or bayou adjacent detention pond but rather the drain line connects to the river, stream or bayou downstream of the detention pond where the elevation is at a lower level, allowing the detention pond to be dug deeper and therefore of proportionately greater volume.

Detention pond method

A remediation pig for cleaning a pipeline of wax or paraffin mechanically, with heating, and/or with jetting, comprising a body having an axis, an impeller mounted in the body to receive power from the flowing fluid within the pipeline, wheels mounted on the body for contacting the internal bore of the pipeline, the wheels being powered by the power received from the impeller and being mounted in a skewed position relative to a plane perpendicular to the axis such that as the wheels roll on the internal bore the remediation pig will move along the pipeline.

Free running pig for pipeline remediation

A method of providing motion compensation of a subsea package with a synthetic rope comprising attaching the synthetic rope to the subsea package, supporting a first gripper with a wire rope from a winch capable of motion compensation control characteristics and gripping the synthetic rope with the first gripper, supporting a second gripper with a second wire rope, and repeating the following sequence: lowering the first gripper, the synthetic rope, and the subsea package a first distance, gripping the synthetic rope with the second gripper, releasing the first gripper from the synthetic rope, raising the first gripper the first distance, gripping the synthetic rope with the first gripper, releasing the second gripper from the synthetic rope, such that when the subsea package is lowered proximate the subsea landing location the winch capable of operating with motion compensation characteristics can operate to compensate for the vessel motion and smoothly lower the subsea package to the subsea landing location.

Method of motion compensation with synthetic rope

The method of providing a necessary preload for a rope or cable on a dual drum traction winch without reducing the capacity of the winch or requiring a second piece of capital equipment to provide the preload force by using a freely rotating wheel to load the rope or cable against at least one of the drums and cause a frictional traction on the winch drum.

Method of providing preload for a dual drum traction winch

Growing community of inventors

Houston, TX, United States of America

Benton Frederick Baugh