Means For Perforating, Weakening, Bending Or Separating Pipe At An Unprepared Point Patents (Class 166/55)
-
Patent number: 8783360Abstract: There is provided a high power laser-riser blowout preventer package and laser module for use with a subsea riser. The laser module and laser-riser package use high power laser energy to quickly cut the riser permitting an offshore drilling rig to quickly, and in a controlled manner disconnect from a blowout preventer.Type: GrantFiled: February 24, 2011Date of Patent: July 22, 2014Assignees: Foro Energy, Inc., Chevron U.S.A. Inc.Inventors: Mark S. Zediker, Henry A. Bergeron, Philip V. Clark, Brian O. Faircloth, Joel F. Moxley, Paul D. Deutch, Charles C. Rinzler
-
Publication number: 20140190707Abstract: A shear component for releasably securing a first component to a second component, the shear component comprising a body having a first end, a second end, an outer wall surface, an inner wall surface defining a cavity, a shear plane, and a core disposed within the cavity and in sliding engagement with the inner wall surface of the body. The core comprises a first position in which the core is disposed in alignment with the shear plane, and a second position in which the core is disposed out of alignment with the shear plane. The shear component can be included in a downhole tool to maintain the downhole tool in the run-in or initial position until being compromised by a stimulus.Type: ApplicationFiled: January 4, 2013Publication date: July 10, 2014Applicant: Baker Hughes IncorporatedInventors: William A. Hered, Jason J. Barnard
-
Patent number: 8770301Abstract: A firing head embodiment of the invention confines a connected capacitance cartridge, explosive detonator, and wireline connection switch within an independent, cylindrical housing tube that is environmentally capped at both ends by threaded closures for secure transport to a well site.Type: GrantFiled: September 24, 2012Date of Patent: July 8, 2014Inventor: William T. Bell
-
Publication number: 20140184364Abstract: Certain aspects and features of the present invention are directed to a supercapacitor device that can be disposed in a wellbore through a fluid-producing formation. The supercapacitor device can include a body that can be disposed in the wellbore, a supercapacitor disposed in the body, at least two terminals disposed at least partially outside the body, and an actuation mechanism. The supercapacitor stores energy. The terminals can be electrically connected with the supercapacitor. An electrical connection between the supercapacitor and the terminals can cause the energy to be discharged from the supercapacitor in response to a conductive material providing an electrical path between the at least two terminals. The actuation mechanism can selectively prevent a deployment of the supercapacitor device in the wellbore from causing a discharge of the energy from the supercapacitor.Type: ApplicationFiled: December 27, 2013Publication date: July 3, 2014Applicant: Halliburton Energy Services, Inc.Inventors: Christopher M. McMillon, Robert M. Neely, Gregory T. Werkheiser
-
Publication number: 20140158357Abstract: A downhole hydraulic tool employing multiple nozzles in a selectable fashion from an oilfield surface. At least one of the nozzles of the tool is equipped with a burst disk such that fluid pressure directed from the surface may be utilized in activating the nozzle. The pressure may be driven to exceed a predetermined level for sake of the activating by way of sealing off access to other nozzle(s) therebelow, for example, by way of standard ball drop techniques. Thus, nozzle selectivity may be taken advantage of when a first nozzle wears out without requiring time consuming removal of the tool from the well for sake of remedial repairs or replacement.Type: ApplicationFiled: December 20, 2013Publication date: June 12, 2014Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: VICTOR LYASHKOV, MARK C. OETTLI
-
Patent number: 8746331Abstract: A rust resistant well perforating gun to fractionate a formation adjacent a well can include a gun carrier with recesses, threaded sections, seal bores, and a first coating to prevent rust. The rust resistant well perforating gun can have a charge loading tube for slidably engaging with the gun carrier. The charge loading tube can have charge holes, rear charge holes, end caps, and a second coating to prevent rust.Type: GrantFiled: October 18, 2011Date of Patent: June 10, 2014Inventors: Edward Cannoy Kash, James Edward Kash
-
Publication number: 20140138078Abstract: A tool (10) is described for the handling of wells through a formation, and which shall be taken out of operation with a device for a closing plug of a material that can be hardened, such as concrete, where there is a casing pipe in the well that is cemented against the wall in the bore hole with concrete, and it is characterised in that the tool comprises an assembled unit (10) from the following three sections; a perforating lance (32) comprising a number of explosive charges to form by detonation a row of holes in the pipe and out into the surrounding layer of concrete, a cleaning unit (34) for mechanical cleaning of the inner wall of the pipe in the perforated area and a flushing unit (36) to loosen, dissolve and flush away the hardened cement material between the outer wall of the pipe and the wall of the bore hole. Also described is a method to plug a well that shall be taken out of operation.Type: ApplicationFiled: February 3, 2012Publication date: May 22, 2014Inventors: Morten Lerbrekk, Geir Arne Melhus
-
Patent number: 8726995Abstract: By using reactive shaped charges, a dynamic underbalance effect associated with detonation of a perforating system is enhanced without compromising shot density. Fewer shaped charges can be loaded to achieve the same or better effective shot density as a gun fully loaded with conventional shaped charges, thereby increasing the free volume within the gun while creating debris-free tunnels with fractured tips and substantially eliminating the crushed zone surrounding each perforated tunnel. Further, the strength and grade of gun steel required to construct the gun can be reduced without compromising the amount the gun swells following detonation.Type: GrantFiled: November 30, 2009Date of Patent: May 20, 2014Assignee: Geodynamics, Inc.Inventors: Matthew Robert George Bell, David S. Wesson, Nathan Garret Clark, John Thomas Hardesty
-
Patent number: 8720567Abstract: Methods and apparatuses for severing a wellbore tubular, the apparatus, in certain aspects, including: a first member movable toward a tubular to be severed; a second member with a second blade disposed opposite to the first member and movable toward the tubular; a first blade on the first member having a projection projecting from a center of a blade body with point structure on the projection for puncturing the tubular and cutting surfaces on the projection for cutting the tubular; and cutting surfaces, as needed, on the blade body adjacent the projection for cutting the tubular.Type: GrantFiled: September 19, 2011Date of Patent: May 13, 2014Assignee: National Oilwell Varco, L.P.Inventors: Frank Benjamin Springett, James D. Brugman
-
Patent number: 8720584Abstract: 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.Type: GrantFiled: February 24, 2011Date of Patent: May 13, 2014Assignee: Foro Energy, Inc.Inventor: Mark S. Zediker
-
Patent number: 8720564Abstract: 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 includes a blade body having a front face on a side thereof facing the tubular. At least a portion of the front face has a vertical surface and at least a portion of the front face has an inclined surface. The vertical surface is perpendicular to a bottom surface of the blade body. The blade body includes a loading surface on an opposite side of the blade body to the front face. The loading surface is receivable by the ram. The blade also includes a cutting surface along at least a portion of the front face for engagement with the tubular, and a piercing point along the front face for piercing the tubular. The piercing point has a tip extending a distance from the cutting surface.Type: GrantFiled: May 27, 2011Date of Patent: May 13, 2014Assignee: National Oilwell Varco, L.P.Inventors: Frank Benjamin Springett, Christopher Dale Johnson, Shern Eugene Peters, Eric Trevor Ensley
-
Publication number: 20140124201Abstract: A downhole hydraulic tool employing multiple nozzles in a selectable fashion from an oilfield surface. At least one of the nozzles of the tool is equipped with a burst disk such that fluid pressure directed from the surface may be utilized in activating the nozzle. The pressure may be driven to exceed a predetermined level for sake of the activating by way of sealing off access to other nozzle(s) therebelow, for example, by way of standard ball drop techniques. Thus, nozzle selectivity may be taken advantage of when a first nozzle wears out without requiring time consuming removal of the tool from the well for sake of remedial repairs or replacement.Type: ApplicationFiled: November 2, 2012Publication date: May 8, 2014Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Victor Lyashkov, Mark Callister Oettli
-
Patent number: 8714252Abstract: A perforation tool assembly comprises an energy train, a first perforation gun, and a second perforation gun. The energy train comprises a moderator to reduce the speed of propagation of a detonation in a direction parallel to the axis of the perforation tool assembly. The first perforation gun comprises a plurality of explosive charges coupled to a first portion of the energy train. The second perforation gun comprises a plurality of explosive charges coupled to a second portion of the energy train, wherein the second portion of the energy train is coupled to the first portion of the energy train.Type: GrantFiled: May 15, 2013Date of Patent: May 6, 2014Assignee: Halliburton Energy Services, Inc.Inventors: Timothy S Glenn, John P Rodgers, Jeff A Nelson, John D Burleson, Marco Serra, John H Hales
-
Patent number: 8714251Abstract: A perforation tool assembly comprises an energy train, a first perforation gun, and a second perforation gun. The energy train comprises a moderator to reduce the speed of propagation of a detonation in a direction parallel to the axis of the perforation tool assembly. The first perforation gun comprises a plurality of explosive charges coupled to a first portion of the energy train. The second perforation gun comprises a plurality of explosive charges coupled to a second portion of the energy train, wherein the second portion of the energy train is coupled to the first portion of the energy train.Type: GrantFiled: August 25, 2012Date of Patent: May 6, 2014Assignee: Halliburton Energy Services, Inc.Inventors: Timothy S. Glenn, John P. Rodgers, Jeff A. Nelson, John D. Burleson, Marco Serra, John H. Hales
-
Publication number: 20140110116Abstract: Induction shearing may be used to cut a drillpipe at an undersea well. Electromagnetic rings may be built into a blow-out preventer (BOP) at the seafloor. The electromagnetic rings create a magnetic field through the drillpipe and may transfer sufficient energy to change the state of the metal drillpipe to shear the drillpipe. After shearing the drillpipe, the drillpipe may be sealed to prevent further leakage of well contents.Type: ApplicationFiled: March 15, 2013Publication date: April 24, 2014Applicant: Transocean Sedco Forex Ventures LimitedInventors: Gerry Ludtka, John Wilgen, Roger Kisner, Timothy Mcintyre
-
Publication number: 20140102705Abstract: An apparatus for performing abrasive jet perforating in a well comprises a generally cylindrically shaped tube with a side, an upper portion, and a lower portion; a plurality of smooth holes drilled into the side of the tube; abrasive jets mounted in at least some of the plurality of smooth holes; protective plates mounted in the side of the tube and surrounding the abrasive jets to hold the abrasive jets in place; wafers recessed into pockets on the protective plates and surrounding the abrasive jets to protect the abrasive jets from damage due to rebound of abrasive-carrying fluid slurry ejected by the abrasive jets; and fasteners securing the protective plates to the side of the tube and positioned away from the rebound of abrasive-carrying fluid slurry ejected by the abrasive jets.Type: ApplicationFiled: August 9, 2012Publication date: April 17, 2014Applicant: TD Tools, Inc.Inventor: Thomas L. Dotson
-
Patent number: 8695691Abstract: 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.Type: GrantFiled: February 9, 2012Date of Patent: April 15, 2014Assignee: Cameron International CorporationInventors: Johnnie E. Kotrla, Joe S. Johnson
-
Publication number: 20140096966Abstract: A method of completing a subterranean well having a well casing extending though an earth formation is provided, including the steps of: suspending an apparatus at a selected depth within the well casing; creating an unbalanced condition within the well casing; forming a lateral bore in the formation by jetting a pressurized fluid from the apparatus through a casing opening in the well casing and into the earth formation; receiving in the well casing through the casing opening fluid and formation debris created from forming the lateral bore; and lifting the fluid and formation debris received by the well casing upwardly through the well casing to the well surface.Type: ApplicationFiled: October 8, 2012Publication date: April 10, 2014Inventor: Gary Freitag
-
Publication number: 20140096670Abstract: A perforating gun assembly comprises a drop sub linking the firing head to the gun tube or tubes. The drop sub includes a 360° perimeter shaped charge explosive for severing pipe having an axial bore to accommodate a pass-through of the perforation charge detonation chord. Consequently, the severing tool is detonated by the traverse of a detonation wave along the chord length to disconnect the perforating gun prior to detonation of the perforation charges.Type: ApplicationFiled: October 9, 2012Publication date: April 10, 2014Inventors: William T. Bell, Don Umphries
-
Publication number: 20140076564Abstract: A perforation tool assembly. The perforation tool assembly comprises a tool string connector, a perforation gun coupled to the tool string connector, and a structure configured to absorb mechanical energy released by firing one or more perforation guns. The coupling is configured to provide a limited range of motion of the tool string connector relative to the perforation gun. The tool string connector and the perforation gun retain the structure configured to absorb mechanical energy.Type: ApplicationFiled: September 19, 2012Publication date: March 20, 2014Applicant: HALLIBURTON ENERGY SERVICES, INC.Inventors: John P. Rodgers, Marco Serra, Timothy S. Glenn, John D. Burleson
-
Patent number: 8672031Abstract: Embodiments of the invention include methods and systems for perforating a well using a wired work string assembly. According to embodiments of the invention, the method includes positioning a wired work string assembly in a wellbore, the work string assembly comprising a plurality of wired pipe communicatively coupled at each joint, a depth correlation tool, and a perforating gun assembly. A depth of the perforating gun assembly is determined from a depth correlation tool positioned within the wellbore, and an electrical signal related to the depth of the perforating gun assembly is transmitted to a surface above the wellbore. Firing of the perforating gun assembly is initiated via a signal transmitted from the surface above the wellbore. An electrical signal from the wellbore is transmitted to the surface to confirming the firing of perforating gun assembly. The system includes various tools for perforating the well using the disclosed methods.Type: GrantFiled: March 15, 2010Date of Patent: March 18, 2014Assignee: Schlumberger Technology CorporationInventor: Vladimir Vaynshteyn
-
Publication number: 20140069647Abstract: A device and method for use is provided to provide a port in a tubular without using explosives or a mechanical apparatus. By the utilization of the chemical cutter described herein the decision on the type of completion equipment to be implemented may be delayed or modified as the well creation progresses.Type: ApplicationFiled: September 10, 2012Publication date: March 13, 2014Applicant: WEATHERFORD/LAMB, INC.Inventor: Kerry Gordon Daly
-
Publication number: 20140048245Abstract: A shear ram assembly including upper and lower ram blocks having blades positioned on opposing sides of pipe and other, more ductile items, and arranged to close around and shear the pipe and the more ductile items. The shear ram assembly includes pipe guide arms attached to the upper ram block and configured to guide pipe and other items into the path of the blades, and to be received by recesses in the lower ram block. Also included are wear plates mounted on top of the pipe guide arms and positioned to force the lower ram block to rise as the arms enter the recesses, thereby causing the gap between the blades to decrease so that the blades can better shear the more ductile items.Type: ApplicationFiled: August 16, 2012Publication date: February 20, 2014Applicant: HYDRIL USA MANUFACTURING LLCInventors: Elliot Thomas Yendell, Viral Shah
-
Publication number: 20140034315Abstract: What is presented is a metal magnalium thermite pellet that is used to create heated gas. The metal magnalium thermite pellet is made to be inserted into the cutting apparatus that is used for cutting a conduit for oil, gas, mining, and underwater pressure sealed tool applications. To cut the conduit, the cutting apparatus radially projects a flow of heated gas from the internal surface of the conduit through to its external surface. The metal magnalium thermite pellet is also made to be inserted into the high power igniter that releasably secures to the cutting apparatus. Generally, the metal magnalium thermite pellet comprises a metal magnalium thermite composition that consists of between 1 to 44 percent magnalium alloy, 1 to 44 percent aluminum, 40 to 60 percent iron oxide, and 10 to 20 percent polytetrafluoroethylene.Type: ApplicationFiled: July 31, 2013Publication date: February 6, 2014Applicant: Otto Torpedo Inc.Inventors: Richard F. Tallini, Todd J. Watkins
-
Publication number: 20140034316Abstract: A shearing device that torsionally shears an oilfield tubular by gripping the tubular at vertically spaced apart locations and exerting a torsional force at the locations. Tong assemblies are provided for gripping the tubular, where the tong assemblies include a tong member pivotally mounted on a tong arm. The tong assemblies may be housed in a blowout preventer mounted on a wellhead assembly; projecting the tong assemblies radially inward engages the tong members with the tubular, and moving the arm further radially inward imparts the torsional force onto the tubular. In an alternate embodiment, the shearing device includes holding rams that project radially inward to engage the tubular and a torque rack that tangentially engages the tubular thereby torqueing the tubular.Type: ApplicationFiled: August 2, 2012Publication date: February 6, 2014Applicant: HYDRIL USA MANUFACTURING LLCInventor: Eric Dale Larson
-
Publication number: 20140020896Abstract: Methods and apparatus are provided for conducting multiple successive same-location firings of a number of shaped charges carried by a perforating gun that is lowered into the wellbore and precisely positioned to align its charges with the penetration created by the first fired-charges in order to produce deeper and larger diameter penetrations that result in enhanced hydraulic fracturing of the reservoir and increased gas production from the completed well.Type: ApplicationFiled: July 18, 2013Publication date: January 23, 2014Applicant: Saudi Arabian Oil CompanyInventor: Al-Waleed Abdullah AL-GOUHI
-
Publication number: 20140020897Abstract: Methods and apparatus for perforating a formation in a wellbore without perforating a well bore casing. The methods and apparatus include an external casing perforating device configured so as not to perforate the casing. The interior of the perforating device serves as a fluid flow path between the casing and the formation following perforation and a valve in the casing selectively opens and closes the flow path.Type: ApplicationFiled: September 23, 2013Publication date: January 23, 2014Applicant: GeoDynamics, Inc.Inventors: David S. Wesson, Kevin R. George, Philip M. Snider
-
Publication number: 20140014315Abstract: The present invention relates to a downhole tool extending in a longitudinal direction, comprising a tool housing; an arm assembly pivotally mounted about a pivot point fixed in relation to the tool housing and movable between a retracted position and a projecting position in relation to the tool housing; an arm activation assembly for moving the arm assembly between the retracted position and the projecting position, the arm activation assembly being arranged inside the tool housing and having a first end face and a second end face adapted for being connected with the end faces of other arm activation assemblies; wherein the arm activation assembly comprises: a piston housing having a piston chamber extending in the longitudinal direction of the downhole tool and comprising: a first piston housing part, a second piston housing part removably connected to the first piston housing part, a piston member arranged inside the piston housing and connected with the arm assembly, the piston member being movable in thType: ApplicationFiled: March 29, 2012Publication date: January 16, 2014Applicant: Welltec A/SInventor: Jørgen Hallundbæk
-
Publication number: 20140014367Abstract: The present invention relates to a downhole driving unit (11) for insertion into a well, comprising a driving unit housing (51), a hydraulic motor (23) comprising a hydraulic motor housing (93), a wheel assembly (90) comprising a stationary part (91) and a rotational part (92), the stationary part being connected with the driving unit housing and being rotatably connected with the rotational part, the stationary part and the rotational part constituting the hydraulic motor housing, the rotational part comprising a wheel ring (99) closed from one end, wherein the wheel assembly comprises a spring member (113) assembling the hydraulic motor housing.Type: ApplicationFiled: March 29, 2012Publication date: January 16, 2014Applicant: WELLTEC A/SInventor: Jørgen Hallundbæk
-
Publication number: 20140014327Abstract: A method of producing reservoir fluids from a condensate gas reservoir traversed by a production well includes the formation of a protrusion into natural gas bearing rock along a producing interval of the reservoir. A heater element is placed into the protrusion and configured for operation. Reservoir fluids are produced from the producing interval while the heater element heats the natural gas bearing rock proximate the heater element. The heat supplied by the heater element reduces condensate build up in the natural gas bearing rock adjacent the production well during production. The heater element is configured to heat the natural gas bearing rock that is proximate the heater element to a temperature that is sufficient to vaporize and/or reduce the viscosity of condensate that is proximate the heater element. A related system is also described.Type: ApplicationFiled: July 24, 2012Publication date: January 16, 2014Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: MOHAMMED BADRI, WAEL ABDALLAH, REZA TAHERIAN
-
Patent number: 8622132Abstract: The present invention discloses a wellbore subassembly with a perforating gun. The wellbore subassembly includes a tubular body and a perforating charge. The tubular body has a wall defining an interior space and an exterior space and the wall has a cavity. In some embodiments, the cavity may be shaped to define a charge socket that receives only a single perforating charge. The perforating charge is configured in the cavity at a location inside the wall. The perforating charge is configured to discharge toward and into the interior space and penetrate into the exterior space by perforating the wall across the interior space from the location of the perforating charge.Type: GrantFiled: July 23, 2010Date of Patent: January 7, 2014Inventors: Nathan Brian Coffey, Terry Lee Mytopher
-
Publication number: 20140000894Abstract: Wellbore subassemblies usable to create a flowpath between a formation and a wellbore can include an inner sleeve and an outer sleeve positioned internal to and external of a core, the core having sockets containing charge assemblies. Upon actuation of the charge assemblies, the inner and outer sleeves are both simultaneously penetrated to form a fluid flowpath between the interior of the subassembly and the formation exterior to the subassembly. The structure of the subassembly can enable it to be lowed and used as part of a tubular conduit string both before and after perforation, the charge assemblies being unobtrusively embedded within the wall of the subassembly.Type: ApplicationFiled: February 8, 2013Publication date: January 2, 2014Applicant: Integrated Production Services, LTD.Inventors: Nathan Brian Coffey, Terry Lee Mytopher
-
Publication number: 20140000895Abstract: A shear pig assembly and method of use for severing a linear conductor within a surrounding tubular. A shear pig assembly includes a main body and a nose that radially surround the linear conductor within the tubular. The main body and nose are axially moveable with respect to each other to cause a shear plug to move radially within a shearing chamber, thereby severing the linear conductor.Type: ApplicationFiled: June 29, 2012Publication date: January 2, 2014Applicant: Baker Hughes IncorporatedInventor: John Gordon Misselbrook
-
Patent number: 8616293Abstract: A system and method for positioning a tool within a wellbore are described herein. The interior surface of a tubular string is provided with one or more pluralities of grooves, each defining a selected profile. A tool is lowered into the tubular string, having a blade in communication therewith. The blade includes a plurality of protruding members thereon, which define a profile complementary to at least one of the selected profiles formed by one of the pluralities of grooves. A biasing member in communication with the blade continually biases the blade toward the interior surface of the tubular string to cause the profile of the blade to engage within the corresponding complementary profile of the tubular string. Positioning a tool in this manner is especially advantageous for locating a cutting tool at a precise location to sever a tubular segment at a joint, releasing tensile forces from the joint.Type: GrantFiled: November 24, 2009Date of Patent: December 31, 2013Inventors: Michael C. Robertson, William F. Boelte, Douglas J. Streibich
-
Publication number: 20130327514Abstract: A first end of a conductive spring is embedded in a wall of a large chamber of a piston housing. The spring is held in tension by a second end of the spring being pinned against a bead contact by a trigger pin. The diameter of the piston and a tensile breaking strength of the trigger pin are selected so that the trigger pin is breakable and the tension in the spring is releasable upon the presence of a predetermined pressure difference between a pressure on the contact side of the piston and a pressure on the pinning side of the piston. Release of tension in the spring closes an electrical circuit.Type: ApplicationFiled: June 12, 2012Publication date: December 12, 2013Inventors: Clovis Satyro Bonavides, Donald Leon Crawford, Paul Anthony Molina, Gabriel Vicencio Mata
-
Patent number: 8602102Abstract: Methods and apparatuses for severing a wellbore tubular, the apparatus, in certain aspects, including: a first member movable toward a tubular to be severed; a second member with a second blade disposed opposite to the first member and movable toward the tubular; a first blade on the first member having a projection projecting from a center of a blade body with point structure on the projection for puncturing the tubular and cutting surfaces on the projection for cutting the tubular; and cutting surfaces, as needed, on the blade body adjacent the projection for cutting the tubular.Type: GrantFiled: September 19, 2011Date of Patent: December 10, 2013Assignee: National Oilwell Varco, L.P.Inventors: Frank Benjamin Springett, James D. Brugman
-
Publication number: 20130299173Abstract: A tool assembly and method for completing a well are provided. The tool includes debris relief features that enable use in solids-laden environments, for example in the presence of sand. Forward and reverse circulation pathways to the isolated interval are present to allow clearing of debris from the wellbore annulus while the sealing device remains set against the wellbore.Type: ApplicationFiled: June 17, 2013Publication date: November 14, 2013Inventors: Marty Stromquist, Donald Getzlaf, Robert Nipper
-
Patent number: 8579022Abstract: An apparatus for deploying and activating a downhole tool activated by an explosive charge such as a drill pipe cutter or hole puncher. The apparatus includes a sealing member with an external wedge-shaped profile that forms a metal-to-metal partial seal with a profile at the top end of a pipe joint in a drill pipe string. The apparatus includes an impact force absorbing device that maintains a firing rod in a non-actuated position during impact of the apparatus. The apparatus includes a differential pressure piston that actuates at a pre-determined well bore pressure to release the firing rod to activate the downhole tool.Type: GrantFiled: March 25, 2011Date of Patent: November 12, 2013Inventors: Robert B. Cook, Glenn M. Walls
-
Patent number: 8567427Abstract: Blowout preventer blocks, each having a channel and plate(s) to close it. The blocks are placed over a pipe through which oil or other fluid is escaping, so that the pipe is in their channels. Alongside the channel in each block are one or more plates, having diameters somewhat larger than the diameter of the channel. Explosive charges propel the plates into the channel to seal it off and stop the leak. When multiple blocks and/or multiple plates in a block are placed over a pipe, the assembly may be referred to as a “Christmas tree.” There are passages that allow the plates to move into place to block the channel. Leading edges of the plates act as male elements that engage female reciprocal ends of the passages to create a seal. Grooves and tunnels in the plates allow fluid to escape into the pipe to ensure a seal.Type: GrantFiled: November 27, 2012Date of Patent: October 29, 2013Inventor: Philip John Milanovich
-
Publication number: 20130277040Abstract: A milling assembly and methods for milling an opening for a lateral wellbore in a section of casing or in a cement liner.Type: ApplicationFiled: June 24, 2013Publication date: October 24, 2013Inventor: David Joe Steele
-
Patent number: 8561683Abstract: An apparatus and a method for cutting a wellbore tubular may include an upper section and a lower section mating at a juncture plane defined by a plane transverse to the longitudinal axis of the wellbore tubular. Each section may include a support plate having a passage, a liner positioned adjacent to the support plate, and an energetic material disposed between the support plate and the liner. An initiator having a shaft may be positioned in the passages of the upper section and the lower section.Type: GrantFiled: September 21, 2011Date of Patent: October 22, 2013Assignee: Owen Oil Tools, LPInventors: Jeffrey D. Wood, Timothy Edward LaGrange, Matthew Clay
-
Publication number: 20130269938Abstract: System, devices, and methods are described relating to the treatment (e.g., perforating, fracturing, foam stimulation, acid treatment, cement treatment, etc.) of well-bores (e.g., cased oil and/or gas wells). In at least one example, a method is provided for treatment of a region in a well, the method comprising: positioning, in a well-bore, a packer above the region of the well-bore, fixing, below the region, an expansion packer, treating the region, the treatment fixing the packer, moving the expansion packer, and moving the packer after the moving of the expansion packer.Type: ApplicationFiled: March 14, 2013Publication date: October 17, 2013Applicant: Pioneer Natural Resources USA, Inc.Inventor: Pioneer Natural Resources USA, Inc.
-
Publication number: 20130264056Abstract: An array of plugging devices are pumped sequentially from the surface through a liner, that typically becomes horizontal in nature, where each plugging device is anchorable at a specified position along the length of the liner. When the plugging device is anchored, a cluster of perforations is generated above the plugging device where the perforations may be created by detonation of a perforating gun attached to the top side of the plugging device or the perforations may be created by shifting of a sleeve that is anchored to the plugging device. The plugging device may be a cup plug where the cup is similar to a swab cup and when pump pressure is applied to the cup, a force is generated to make the cup move through the liner. When anchored, the cup also directs frac fluids through the perforations to treat the well formation.Type: ApplicationFiled: March 21, 2013Publication date: October 10, 2013Applicant: Oiltool Engineering Services, Inc.Inventor: Oiltool Engineering Services, Inc.
-
Publication number: 20130255950Abstract: A perforating gun (50) for use in a wellbore comprises a body (52) configured to be displaced within the wellbore, and first and second charge arrangements mounted on the body (52) and configured to be detonated independently of each other. In one embodiment the body (52) is configured to be moved axially within the wellbore between detonation of the first and second charge arrangements and at least portions of the first and second charge arrangements are provided within a common axial length of the body (52).Type: ApplicationFiled: May 19, 2011Publication date: October 3, 2013Applicant: Expro North Sea LimitedInventor: Andy Richards
-
Patent number: 8534957Abstract: A method and system for repairing, replacing or installing an underground pipeline using an appropriate tool head. A coolant, preferably a cryogenic liquid, is injected in front of the tool head to embrittle or otherwise reduce the toughness of the material ahead of the tool head. The method and system of this invention are particularly suitable for use in connection with pipe splitting and pipe bursting, where a pig disposed within the underground pipeline is connected with the appropriate tool head forming a space between the pig and the tool head into which the coolant is introduced. The pipe between the pig and the tool head is embrittled by the coolant, reducing the resistance of a pipe to splitting or bursting which, in turn, reduces the force required for the pig to pull the tool head as the pig is motivated through the pipe.Type: GrantFiled: March 9, 2010Date of Patent: September 17, 2013Assignee: Gas Technology InstituteInventor: Daniel Allen Ersoy
-
Publication number: 20130233555Abstract: The present invention relates to a downhole punch for insertion into a wall of a casing. The downhole punch comprises a body having a first end and a second end and a through-bore forming an inner face of the body and an outer face of the body, wherein the first end comprises at least one cutting edge at least forming a leading tip or a leading edge for punching an opening in the casing, and a component is arranged in the through-bore. The present invention also relates to a downhole valve for insertion into a wall of a casing. The downhole valve comprises a housing having a first end and a second end and an inner face and an outer face. Furthermore, the invention relates to a downhole tool for inserting a downhole valve into a wall of a casing, to a downhole system comprising the downhole tool as well as to a downhole method for insertion of a downhole unit into a casing downhole.Type: ApplicationFiled: November 25, 2011Publication date: September 12, 2013Applicant: WELLTEC A/SInventors: Jørgen Hallundbæk, Paul Hazel
-
Publication number: 20130220631Abstract: A method of separating a tubular element, comprising providing a tubular element having an inner and an outer surface, a circumference of said outer surface, and a first end and a second end; radially surrounding said tubular element with an explosive material, wherein said explosive material is capable of generating a high-velocity plasma jet in response to an activation signal, and wherein said explosive material comprises an electrically conductive layer; transmitting said activation signal to said explosive material; generating said high-velocity plasma jet; and separating said tubular element into a first portion comprising said first end and a second portion comprising said second end when said high-velocity plasma jet penetrates said outer surface of said tubular element and exits said inner surface of said tubular element.Type: ApplicationFiled: October 28, 2011Publication date: August 29, 2013Inventor: Curtis Len Wilie
-
Patent number: 8517120Abstract: A perforation tool e.g. for perforation of a formation, a well or the like downhole by detonation of a charge. The perforation tool has at least one charge and at least one switch for detonation of the charge. The switch has a housing, at least one contact, a shaft having a first end with a fastening member enabling a slidable fastening of the shaft in a predetermined position in relation to the tool and a second end for extending into the housing, and a conductor provided on the shaft enabling an electrical current to be conducted between the contact and the for detonation of a charge when the shaft extends within the housing.Type: GrantFiled: March 19, 2008Date of Patent: August 27, 2013Assignee: Welltec A/SInventor: Jørgen Hallundbaek
-
Publication number: 20130213655Abstract: A technique facilitates removal of excess sand during a jet perforating operation without requiring that the perforating string be pulled out of hole. A jet perforating tool is provided with at least one perforating nozzle for creating perforations in a well via high-pressure fluid. The jet perforating tool also comprises at least one wash nozzle oriented to direct fluid under pressure against a sand plug to break loose excess sand. A pair of seats and plug members may be used in the jet perforating tool to control the flow of pressurized fluid through the perforating jet nozzle and/or the wash nozzle.Type: ApplicationFiled: February 22, 2012Publication date: August 22, 2013Inventor: Carolina Gonzalez Martinez
-
Publication number: 20130213639Abstract: An electromagnetic perforation device for well casings includes a coil disposed around a core carried by a mandrel. The device further includes a power supply coupled to a current supply device, which is coupled to said coil. A stabilizing member extends from the mandrel and spaced apart on the mandrel from the coil core. The electromagnetic perforation device may be positioned in a well casing, and the current supply device may rapidly supply a current to the coil to created an electromagnetic field in the coil and simultaneously induces a magnetic field in the well casing. The coil, current, and well casing may be selected such that electromagnetic field and the magnetic field produce repulsive magnetic forces that are sufficient to overcome a yield strength of the well casing and perforate the well casing.Type: ApplicationFiled: November 11, 2010Publication date: August 22, 2013Applicant: Halliburton Energy Services, Inc.Inventors: Michael Bittar, Jing Li, Daniel Dorffer, Clive Menezes