| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 241 | Insertion of a pack-off into a wellhead | US13086537 | 2011-04-14 | US08678093B2 | 2014-03-25 | Daniel A. Willoughby |
| Apparatus for the insertion of a pack-off into a recess in a bore of a wellhead body includes an activating sleeve which has a portion disposed for engagement with the pack-off for the movement of the pack-off into the recess and body portions shaped for location on a datum member within the bore. The activating sleeve includes a plurality of apertures circumferentially spaced about the activating sleeve. A running tool which is adapted to move the activating sleeve into engagement with the pack-off carries spring-loaded dogs each disposed in one of the apertures. Each of a plurality of releasing pins is positioned such that it enters a respective one of the apertures when the activating sleeve has caused the pack-off to be located in the recess. The entry of the pins into the apertures causes depression of the dogs out of the apertures and allows the consequent release of the activating sleeve from the running tool. | ||||||
| 242 | DOWNHOLE TOOLS HAVING NON-TOXIC DEGRADABLE ELEMENTS | US13969066 | 2013-08-16 | US20140027127A1 | 2014-01-30 | W. Lynn Frazier; Garrett Frazier; Derrick Frazier |
| Downhole tools for use in oil and gas production which degrade into non-toxic materials, a method of making them and methods of using them. A frac ball and a bridge plug comprised of polyglycolic acid which can be used in fracking a well and then left in the well bore to predictably, quickly, and safely disintegrate into environmentally friendly products without needing to be milled out or retrieved. | ||||||
| 243 | Elongated sealing member for downhole tool | US12393984 | 2009-02-26 | US08636074B2 | 2014-01-28 | Kim Nutley; Brian Nutley; Glen Robitaille |
| A downhole apparatus is described comprising a body and a sealing arrangement located on the body. The body has a longitudinal axis and the sealing arrangement comprises at least one elongated sealing member with an axis of elongation extending around the longitudinal axis. The sealing member comprises a material selected to expand on exposure to at least one predetermined fluid, such as a hydrocarbon or aqueous fluid encountered in a wellbore. A method of forming the apparatus and methods of use are described. Embodiments of the invention relate to wellbore packers. | ||||||
| 244 | PACKER SETTING AND/OR UNSETTING | US13941165 | 2013-07-12 | US20140014353A1 | 2014-01-16 | Aristeo Rios, III |
| Linear movement via a sliding mandrel configured to translate axially is converted into radial movement to compress a packer. The packer is configured to seal an item of oilfield equipment typically in a subsea environment. The packer may also be used to return or reverse the radial movement and/or the linear movement. | ||||||
| 245 | Methods and devices for isolating wellhead pressure | US12920824 | 2009-02-24 | US08544551B2 | 2013-10-01 | Dennis P. Nguyen; David Anderson; Delbert Vanderford |
| A wellhead is provided. In one embodiment, the wellhead includes a plug for sealing a side passage of the wellhead. The plug may include an outer member, an inner member extending through the outer member and coupled to the outer member with at least one degree of freedom of movement relative to the outer member, and a moveable seal disposed around the outer member. In some embodiments, the moveable seal is configured to seal against the side passage in response to being moved on the outer member by the inner member. | ||||||
| 246 | Closing of Underwater Oil Spills With The Help of Magnetic Powders | US13700866 | 2011-06-01 | US20130213512A1 | 2013-08-22 | Rainer Meinke; Mark Senti; Gerald Stelzer |
| A segment of a structure mitigates flow of fluid therethrough. In one embodiment the segment includes an opening for the fluid flow and the modified structure may include a ferromagnetic wall defining the opening and a plurality of permanently magnetized particles. Some of the permanently magnetized particles are attached to the wall by magnetic forces. A system is also provided for injecting magnetic particles into a cavity to impede movement of fluid through the cavity. A method is also described for mitigating a flow of fluid through an opening in a wall. In one embodiment, the method includes positioning a plurality of first magnetic particles along the wall and about the opening and attaching a plurality of second magnetic particles to the first magnetic particles wherein some of the second magnetic particles collectively extend across the opening to cover the opening. | ||||||
| 247 | Well tools with actuators utilizing swellable materials | US11407704 | 2006-04-20 | US08453746B2 | 2013-06-04 | Travis T. Hailey, Jr.; Rune Freyer |
| Well tools utilizing swellable materials. Actuators for well tools may incorporate swellable materials as force generating devices. A well tool includes an actuator which actuates the well tool in response to contact between a swellable material and a well fluid. A method of actuating a well tool includes the steps of: installing a well tool including an actuator; contacting a swellable material of the actuator with a well fluid; and actuating the well tool in response to the contacting step. A well system includes a well tool with a flow control device and a swellable material. The well tool is operative to control flow through a passage of a tubular string in response to contact between the swellable material and well fluid. | ||||||
| 248 | Prevention, Actuation and Control of Deployment of Memory-Shape Polymer Foam-Based Expandables | US13740936 | 2013-01-14 | US20130126170A1 | 2013-05-23 | Michael Johnson; Oleg A. Mazyar; Bennett M. Richard |
| Actuation and control of the deployment of a polymeric memory-shape material on a wellbore device on a downhole tool may be accomplished by treating a compacted or compressed polymeric memory-shape material with an optional deployment fluid to lower its Tg and/or decrease its rigidity, thereby softening the polymeric shape-memory material at a given temperature and triggering its expansion or recovery at a lower temperature. Recovering the polymeric shape-memory material may occur by its being exposed to a particular temperature range. Alternatively, the deployment of the compacted or compressed polymeric memory-shape material may be prevented or inhibited by shielding the material with an environment of a fluid that does not substantially lower its Tg, decrease its rigidity or both, and then subsequently contacting the material with a deployment fluid. The deployment fluid may be removed during the method. | ||||||
| 249 | Method and apparatus for measuring particle size distribution in drilling fluid | US13123541 | 2009-10-21 | US08427640B2 | 2013-04-23 | Egil Ronaes; Michael A. Freeman |
| A method for measuring particle size distribution in a fluid material, involving inserting a laser beam instrument directly in the fluid flow line, wherein the laser beam instrument focuses a laser beam on a window directly coupled with the fluid flow line, wherein the fluid flow line comprises a fluid having a plurality of particles of different sizes, measuring a diameter of at least one particle in the fluid flow line by reflectance of the at least one particle as the at least one particle passes through the focused laser beam, and determining a duration of reflection of the at least one particle, and obtaining a count of particles in each of a pre-set range group of particle sizes, wherein the count of particles is used to determine particle size distribution in the fluid flow line. | ||||||
| 250 | Assembly for controlling annuli between tubulars | US12779044 | 2010-05-13 | US08307889B2 | 2012-11-13 | Randy Lewkoski |
| The present application is directed to an assembly for controlling an annulus between tubulars. The assembly comprising a first annular member securable to the outer tubular; a second annular member securable to the first annular member; wherein each of the first and second annular members have eccentric bores therethrough. | ||||||
| 251 | METHOD FOR CONTAINING AND SEALING AN OIL LEAK | US13272735 | 2011-10-13 | US20120093584A1 | 2012-04-19 | David Johnson |
| The present invention pertains to a method for containing and sealing an underwater oil leak comprising the steps of: (a) providing a quantity of particulate positioned on a platform located at a surface of the water; (b) providing a conduit having an inlet positioned on the platform and an outlet positioned near the oil leak; (c) delivering the particulate through the conduit to the oil leak; (d) depositing the particulate atop the oil leak; and (e) compacting the particulate over the oil leak. The platform can comprise a boat, a rig, or any other suitable structure. Likewise, the particulate can comprise a metal and/or a malleable material, and preferably comprises lead. | ||||||
| 252 | Subsea Well Safing System | US13220593 | 2011-08-29 | US20120048566A1 | 2012-03-01 | Charles Don Coppedge; Dana Karl Kelley; Charles C. Porter; Hildebrand Angie Rumann |
| A subsea well safing method and apparatus adapted to secure a subsea well in the event of a perceived blowout in a manner to mitigate the environmental damage and the physical damage to the subsea wellhead equipment to promote the ability to reconnect and recover control of the well. The safing assembly is adapted to connect the marine riser to the BOP stack. Pursuant to a safing sequence, the well tubular is secured in the upper and lower safing assemblies and the tubular is then sheared between the locations at which it as been secured. Subsequently, an ejection device is actuated to physically separate the upper safing assembly and connected marine riser from the lower safing assembly that is connected to the BOP stack. | ||||||
| 253 | DOWNHOLE MAGNETIC PARTICLE DELIVERY SYSTEM FOR OIL AND GAS WELLS | US12790151 | 2010-05-28 | US20110290506A1 | 2011-12-01 | Murat Ocalan; Manuel Marya |
| The subject disclosure discloses an apparatus and method of conveying magnetic particles into a wellbore. A plurality of particles which are magnetically attracted to one another in response to exposure to a magnetic field are delivered downhole via a degradable material. The degradable material confines the particles and conveys the particles to a desired location downhole. The structure comprising the degradable material and the confined particles can be lowered into a subterranean well by a cable or wire, or alternatively released into the well under the influence of gravity and flow induced forces. The material degrades in response to conditions encountered in a subterranean environment thus releasing the particles. | ||||||
| 254 | ASYMMETRIC SEAL AND METHOD | US12696805 | 2010-01-29 | US20110186308A1 | 2011-08-04 | Richard Xu |
| A seal including a contact area; and two arms extending in opposite directions from the contact area, the seal when set exhibiting an asymmetric cross section. | ||||||
| 255 | Cover assembly for flanges and other tubular members | US12210162 | 2008-09-12 | US20100064589A1 | 2010-03-18 | Corey Schnepf |
| A cover assembly for use on a wide variety of tubular members comprises a base member, a pivoting member, a plurality of fingers extending from both the base member and the pivoting member and pivot means to pivotally join said pivoting member to said base member. Preferably the cover assembly is pivotable between an open configuration and a closed configuration, wherein said open configuration accepts a first bolt pattern configuration and wherein said closed configuration accepts a second bolt pattern configuration. More preferably, the cover assembly further comprises a ring groove guide. Even more preferably, the cover assembly further comprises a tubular engagement member. | ||||||
| 256 | Spool apparatus to connect to underground well pipe | US11114617 | 2005-04-27 | US07640974B1 | 2010-01-05 | Herbert W. Hoeptner, III |
| Spool apparatus for use in an underground well having casing, comprising a body sized for travel in the well casing, the body defining a well fluid flow duct having a downward facing entrance and a sidewardly facing exit, there being a lower connection for coupling the body to lower well pipe to pass fluid into the body via the entrance, and an upper connection for coupling the body to upper carrier structure used for raising and lowering the body in the well casing, and there being means to latch connect the body to the well casing in a position for well fluid delivery from the body via the exit. | ||||||
| 257 | Oilfield apparatus comprising swellable elastomers having nanosensors therein and methods of using same in oilfield application | US11564467 | 2006-11-29 | US07631697B2 | 2009-12-15 | Rashmi B. Bhavsar |
| An oilfield apparatus has a swellable elastomeric composition that includes a swellable elastomer and one or more nanosensors dispersed therein. An oilfield assembly for exploring for, drilling for, testing for, or producing hydrocarbons includes various oilfield elements such as tubing, jointed pipe, sucker rods, submersible pump motor protector bags, packer elements, blow out preventer elements, zonal isolation tool elements, etc; and one or more of the oilfield elements has a swellable elastomeric composition that includes a swellable elastomer and one or more nanosensors dispersed therein. A method of selecting one or more oilfield elements has a component of an elastomeric composition that includes a swellable elastomer and one or more nanosensors dispersed therein; and a method of using the one or more oilfield elements in an oilfield operation, thus exposing the oilfield element to an oilfield environment. | ||||||
| 258 | Lift-out device for pitless well adapters | US10931557 | 2004-09-01 | US07299865B1 | 2007-11-27 | Jason Kocher |
| A lift-out device for attachment to a pitless adapter in a water well assembly for use when servicing well pumps including a light source mounted near the lower end of the lift-out device for illuminating the interior of a well casing to facilitate attachment of the device to a pitless adapter. Apertures are located in the side of the tubular pipe member adjacent the light source, and a socket for electrically connecting said light source to an external power source such as a rechargeable battery pack is preferably mounted in the handle of the device. The illumination device is preferably cushioned in order to prevent breakage during use and storage. | ||||||
| 259 | Cap for a well casing and method to retrofit a well casing with a cap | US10199077 | 2002-07-22 | US20030019635A1 | 2003-01-30 | Brian C. Acheson |
| This invention is a cap for protecting wells from ground surface liquids getting into a well through the top. The cap encompasses the lid and the top portion of the well casing. The cap has a top, a sidewall and an access port. The top is coupled to a sidewall to define a space to accept a lid and well casing. In preferred embodiments of the invention, the access port has either a tube and boss or a neck and adaptor. The boss surrounds an opening in the top and receives a proximal end of the tube whereas the neck surrounds the opening in the top and the adaptor is received within the neck. The cover is disposed on the tube or neck at an open end distal to the top to cover the opening. In both embodiments, there is at least one hole in the access port. The cap prevents surface liquid from entering into the well though the top | ||||||
| 260 | Well casing sealing device | US139216 | 1998-08-24 | US6105669A | 2000-08-22 | Emery W. Davis |
| A device for closing an end of a well casing includes a gasket, a base and a cap. The gasket has an inner diameter that fits around the well casing. The base has an upwardly facing groove for receiving a lower portion of the gasket, a circular opening slightly larger than the exterior diameter of the well casing thereby permitting the base to be positioned about the well casing, and a plurality of lugs positioned about the periphery of the base. The base also includes an annular flange that projects downward from the lower surface of the base, the annular flange has an inwardly facing surface extending axially downward from the groove in the base. The groove in the base has an inwardly facing wall parallel with the flange inner surface and an upwardly facing shoulder perpendicular to the flange inwardly facing wall that connects the flange inwardly facing wall with the groove annular surface. The base has an upwardly facing surface adjoining the groove annular surface. The cap has a downward facing groove for receiving an upper portion of the gasket. The cap includes a plurality of lugs positioned about the outer periphery of the cap, an inwardly facing annular surface parallel with the inwardly facing surface of the flange, and an axially downward facing shoulder surface perpendicular to the inwardly facing annular surface. The lugs of the base and cap are adapted for axial alignment with axial apertures formed in the lugs. Fastener means within the apertures urge the cap and the base towards one another thereby compressing the gasket between the shoulder surfaces and providing a seal about the well casing. | ||||||
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