| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | Lubricating seal for use with a tubular | US12824934 | 2010-06-28 | US09175542B2 | 2015-11-03 | Thomas F. Bailey; Frederick Thomas Tilton; Don M. Hannegan; Waybourn J. Anderson, Jr.; Simon J. Harrall |
| Sealing elements have lubricating seal profiles for communicating fluid between the sealing elements and the sealed drill string tubular or other oilfield component while the sealed drill string tubular or other oilfield component rotates or moves vertically relative to the seal elements. The same fluid used for drilling may also be used for seal lubrication, such as water, drilling fluid or mud, well bore fluid or other liquid or gas. The sealing elements may be disposed with a seal housing, which may be positioned with a marine riser, or subsea without a marine riser. The seal housing may prevent rotation of the seal elements with the sealed drill string tubular or other oilfield component. Alternatively, the seal housing may be an RCD that allows the sealing elements to rotate. The lubricating seal profiles include a wave pattern, a saw-tooth high film pattern, a downwardly inclined passageway pattern, an upwardly inclined passageway pattern, and a combined upwardly and downwardly inclined passageway pattern. In one embodiment, a stripper rubber seal element may have a lubricating seal profile on the inwardly facing bore surfaces of both its nose and throat sections for sealing with drill string tubulars and other oilfield components having different diameters. Dual seals with two annular spaced apart sealing surfaces, with or without lubricating seal profiles, may seal with a drill string tubular or other oilfield component. In another embodiment, differential pressures across two seal elements may be managed by filling the cavity between the two sealing elements with cuttings-free drilling fluid, mud, water, coolant, lubricant or inert gas at desired amounts of pressure. | ||||||
| 182 | Pipe end plug apparatus and method | US13216701 | 2011-08-24 | US09175536B2 | 2015-11-03 | Francis Walls |
| An open-ended pipe engagement device with a saddle portion that attaches around an open pipe, a structural platform comprising a tapering plug, support bars to prevent dislodgement of the device and threaded rods to winch the platform and plug onto the pipe end to be sealed. The device provides a means to safely cap and plug a leaking pipe end and allow the pipe to resume normal activity thereafter. The saddle portion provides a structural a base from which the plug and associated platform are positioned and winched into place, counteracting any fluid pressure exiting the leaking pipe. The plug comprises a tapering and conforming structure with a centrally located through hole for which to direct fluid as the platform is lowered and once the plug is engaged. Above the plug and through the platform is a section of pipe for which to direct the leaking fluid after the apparatus has been secured to the end of the pipe, effectively controlling the leak and allowing normal operation of the well to resume. | ||||||
| 183 | Offshore drilling method | US13542856 | 2012-07-06 | US09127512B2 | 2015-09-08 | Charles R. Orbell; Christian Leuchtenberg; Craig W. Godfrey |
| 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. | ||||||
| 184 | Offshore universal riser system | US13542704 | 2012-07-06 | US09127511B2 | 2015-09-08 | Charles R. Orbell; Christian Leuchtenberg; Craig W. Godfrey |
| 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. | ||||||
| 185 | Frac adapter for wellhead | US14251382 | 2014-04-11 | US09074444B2 | 2015-07-07 | Bradley Bertrand |
| There is provided a frac adapter configured to couple a frac tree to a wellhead component. The frac adapter may couple the frac tree to a casing head without a tubing head, thereby enabling the well to be fractured before the tubing head is installed. As a result, the tubing head used in well production may be pressure-rated for production pressures rather than for fracing pressures. The frac adapter may be coupled to or integral with the frac tree. In addition, a union-nut coupling may be employed to quickly and easily assemble and disassemble the frac adapter from the wellhead component, such as the casing head. The union-nut coupling may further enable the components to be pressure-tested before the fracturing process is initiated. | ||||||
| 186 | OFFSHORE UNIVERSAL RISER SYSTEM | US14491469 | 2014-09-19 | US20150075804A1 | 2015-03-19 | Charles R. ORBELL; Christian LEUCHTENBERG; Craig W. GODFREY |
| An offshore universal riser system. A riser system includes a valve module which selectively permits and prevents fluid flow through a flow passage extending longitudinally through a riser string. An anchoring device releasably secures the valve module in the flow passage. A method of constructing a riser system includes the steps of installing the valve module in the flow passage, and installing at least one annular seal module in the flow passage. The annular seal module is operative to prevent fluid flow through an annular space between the riser string and a tubular string positioned in the flow passage. Drilling methods 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, is dimensioned for installation through a rotary table. | ||||||
| 187 | SAFETY DEVICE FOR RETRIEVING COMPONENT WITHIN WELLHEAD | US14339439 | 2014-07-23 | US20150021043A1 | 2015-01-22 | Randall Dean Harkins; Kirk Paul Guidry; Thomas Edgar Taylor |
| A system is provided that include 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 from a retainer. In one embodiment, the safety device may be a sleeve configured to receive screws or other retention mechanism in a tubular. A method is provided that includes installing a plug safety catch into a tubular of a mineral extraction system in which the plug is configured to block axial movement of a plug in response to a pressure differential while the plug is released from a mount position. | ||||||
| 188 | Offshore universal riser system | US12299411 | 2007-11-07 | US08887814B2 | 2014-11-18 | Charles R. Orbell; Christian Leuchtenberg; Craig W. Godfrey |
| An offshore universal riser system. A riser system includes a valve module which selectively permits and prevents fluid flow through a flow passage extending longitudinally through a riser string. An anchoring device releasably secures the valve module in the flow passage. A method of constructing a riser system includes the steps of installing the valve module in the flow passage, and installing at least one annular seal module in the flow passage. The annular seal module is operative to prevent fluid flow through an annular space between the riser string and a tubular string positioned in the flow passage. Drilling methods 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, is dimensioned for installation through a rotary table. | ||||||
| 189 | Process, device, and system to cap and seal oil and gas in a riser pipe | US14201725 | 2014-03-07 | US08851184B2 | 2014-10-07 | John Mayn Deslierres; Maria R. Cabedo-Deslierres |
| A containment valve assembly using the upcoming pressures to control the flow of oil/gas through a riser pipe with a stop flow plug positioned within the valve housing that has an outer surface shaped to fit within and against the riser pipe, and an inner socket cavity having a conical nose receiver portion with a relief vent allowing the oil/gas to escape through the valve assembly, when desired. The stop flow plug is shaped to fit within the inner socket cavity and moves between an open position and a closed position, wherein the stop flow plug fits securely against the conical nose receiver portion, sealing the relief vent. At the top of the valve, a nut will lock the stop flow plug to the close out plate for additional stoppage. A second embodiment adds a heavy duty insert to supplement the sealing pressure, when needed. Electronic monitors convey data remotely. | ||||||
| 190 | ANTI-ALTERATION WELLHEAD VAULT | US14213933 | 2014-03-14 | US20140238691A1 | 2014-08-28 | PAUL VARNEY |
| A wellhead vault for preventing alteration of the wellhead of a water supply. The vault is a heavy bell-shaped structure, formed of concrete, and having a downwardly facing concavity, and the vault placed over, with the concavity around the wellhead. The vaults too heavy to be removed by human lifting. Lifting elements are provided to allow the vault to be installed and removed by heavy construction equipment. The vault has a vent that communicates between the concavity and the outside, allowing air, but not liquid, liquid or solid contaminants, or animals, to pass through. | ||||||
| 191 | Well cap assembly | US13815156 | 2013-02-05 | US20140216716A1 | 2014-08-07 | Christopher Nielson |
| A cap assembly for sealing the open end of a well casing or other pipe includes a top plate for mounting on the open end of the pipe, a bottom plate spaced apart from the top plate, an upper expansible gasket sandwiched between the top plate and an upper clamping plate, a lower expansible gasket sandwiched between the bottom plate and a lower clamping plate, spacer sleeves extending between the clamping plates, bolts through the bottom plate, both gaskets and clamping plates, the sleeves and the top plate, and nuts on the bolts. When the bolts are tightened on the nuts, the gaskets expand to seal the pipe at spaced apart locations. | ||||||
| 192 | CONNECTOR | US14127100 | 2012-05-18 | US20140144648A1 | 2014-05-29 | David Ernest McKay |
| A connector is disclosed for connecting components of a subsea conduit system extending between a wellhead and a surface structure, for example, a riser system. Male and female components are provided, and a latching device to releasably latch the male and female components together when the two are engaged. The male and female components incorporate a main sealing device to seal the male and female components together to contain the high pressure wellbore fluids passing between them when the male and female components are engaged. The latching device also incorporates a second sealing device configured to contain fluids when the male and the female components are disengaged, so that during disconnection, any fluids escaping the inner conduit are contained. | ||||||
| 193 | APPARATUS AND METHOD FOR STRIPPING SOLIDS AND FLUIDS FROM A STRING USED IN DRILLING OR SERVICING WELLS | US14156211 | 2014-01-15 | US20140124222A1 | 2014-05-08 | Quinn A. J. Holtby |
| An apparatus and method is provided for stripping solids and fluids from a string used in the drilling or servicing of a well when the string is removed from the well. The apparatus can comprise two or more pivotally connected arcuate body portions that can be enclosed around the string in a clamshell fashion. The apparatus can further comprise a seal disposed therein to provide a toroidal sealing member around the string when the apparatus encloses the string. A quick release latch mechanism is provided on the apparatus for easy and quick installation on, and removal from, the string. Handles on the apparatus allow personnel to hold the apparatus in a stationary position as the string passes through the apparatus when being raised from the well. In so doing, the sealing member strips solids and fluids from the string. | ||||||
| 194 | LONG THIN STRUCTURES FOR GENERATING AN ENTANGLED FLOW RESTRICTING STRUCTURE | US13893227 | 2013-05-13 | US20130299191A1 | 2013-11-14 | Folkers Eduardo Rojas; Alexander H. Slocum |
| A wire includes a plurality of units. Each unit has a relatively stiff region joined to an intermediate region. The intermediate region has a varying stiffness along its length. The intermediate region is joined to a relatively pliable region. | ||||||
| 195 | Process and Apparatus for Sealing Wellhead Leaks Underwater or On Land | US13868060 | 2013-04-22 | US20130272792A1 | 2013-10-17 | Steve Cordell |
| The sealing of underwater and above ground leaks of materials such as petroleum, mud, gas and finely divided solids from wellheads, pipelines and other natural or man-made works is accomplished by placing over the leak a heaviest duty, leak-proof, weighted curtain whose shape and size allow the curtain to be filled in place with cement or other heavy materials, thus effectively sealing the outflow of the materials.The curtain can optionally be fitted with one or more redirection valves to drain off and capture the materials under pressure, for example to transport oil, during and even after the sealing process, from a seabed wellhead leak to a surface ship. An optional second, larger curtain fitted with through-channels with stopcocks can be placed over the first curtain, and the lower valves and through-channels can be connected to continue the transport of materials.Preparation of the sealing sight is minimal, ideally consisting of forming a continuous circular path to more carefully mate the curtain's peripheral-weights with the ground or seabed terrain. If a wellpipe or other obstacle might damage the curtain, or vice versa, the wellpipe would be modified, and/or an optional self-expanding support attached to the curtain underside can protect the curtain during its cement-filling weighting process. | ||||||
| 196 | Method and apparatus for injecting packing into stuffing boxes for reciprocating rods | US13780938 | 2013-02-28 | US08528912B2 | 2013-09-10 | Mark William Mahoney; Ian Douglas Rimmer; Benny J. Williams |
| A stuffing box for a polished rod used with a downhole pump uses injectable packing to provide a seal around the polished rod. The stuffing box has a chamber for receiving the packing. The chamber has an opening to allow the addition of packing to the chamber. The packing is maintained in a compacted condition by either injecting additional packing through the opening or adjusting the volume of the chamber. | ||||||
| 197 | REMOVABLE ORIFICE PLATE DEVICE | US13737660 | 2013-01-09 | US20130180703A1 | 2013-07-18 | Douglas D. Colby |
| A removable orifice plate device includes a body having an un-threaded portion which includes a groove. An orifice plate receiving slot bisects the groove and extends partially through a body diameter. An orifice plate having an orifice slides into the orifice plate receiving slot with an orifice central axis co-axially aligned with a longitudinal axis of the body at an orifice plate installed position in the orifice plate receiving slot. A tab integrally extends from the orifice plate and is oriented perpendicular to a body of the orifice plate. The tab includes an indicator symbol, the indicator symbol visually identifying a predetermined size of the orifice. A transparent indicator sleeve is slidably disposed on a body outer surface and is axially slidable between a first position covering the groove to a second position exposing the groove. The indicator symbol is visible through the indicator sleeve in the first position. | ||||||
| 198 | Method of sealing annular space between inner and outer upright tubes | US12629578 | 2009-12-02 | US08439120B2 | 2013-05-14 | Dean Spence; Gord Blomgren; Randy Riske |
| A method of sealing annular space between an upright outer tube and an upright inner tube extending within the outer tube along an axial direction thereof involves pouring a liquid seal material into the annular space onto a support member fitted within the annular space between the outer tube and the inner tube in a manner substantially closing around the inner tube. The liquid seal material is poured in an amount sufficient to fill radial space between the inner tube and the outer tube fully around the inner tube, the liquid seal material is then cured to form an annular seal between the inner tube and the outer tube. The method is useful in sealing of the annular spacing between the surface and production casing of a gas well and installing a venting system to facilitate controlled venting of the annular space. | ||||||
| 199 | Pipe End Plug Apparatus and Method | US13216701 | 2011-08-24 | US20130048312A1 | 2013-02-28 | Francis Walls |
| An open-ended pipe engagement device with a saddle portion that attaches around an open pipe, a structural platform comprising a tapering plug, support bars to prevent dislodgement of the device and threaded rods to winch the platform and plug onto the pipe end to be sealed. The device provides a means to safely cap and plug a leaking pipe end and allow the pipe to resume normal activity thereafter. The saddle portion provides a structural a base from which the plug and associated platform are positioned and winched into place, counteracting any fluid pressure exiting the leaking pipe. The plug comprises a tapering and conforming structure with a centrally located through hole for which to direct fluid as the platform is lowered and once the plug is engaged. Above the plug and through the platform is a section of pipe for which to direct the leaking fluid after the apparatus has been secured to the end of the pipe, effectively controlling the leak and allowing normal operation of the well to resume. | ||||||
| 200 | OFFSHORE UNIVERSAL RISER SYSTEM | US13542856 | 2012-07-06 | US20120292107A1 | 2012-11-22 | Charles R. ORBELL; Christian LEUCHTENBERG; Craig W. GODFREY |
| 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. | ||||||
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