| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 277322000 | SEAL FOR WELL APPARATUS | 67 |
| 20130043657 | S-SEAL - An S-seal for sealing an annulus between and mandrel outer surface and a tube inner surface. In one embodiment, the S-seal includes a ring comprising a seal face, a gland face, opposing side faces. The gland face is opposite the seal face. The side faces extend between the seal face and the gland face. A spring is embedded in the ring at an intersection of each side face with the seal face. Each side face comprises a groove disposed between the spring and an intersection of the gland face and the side face. | 02-21-2013 |
| 20100007089 | METAL SEAL ADJUSTABLE CASING SUB - An adjustable casing sub having an outer housing, an inner housing insertable into the outer housing, and a ratcheting system for coupling the inner housing within the outer housing. An annulus is between a portion of the inner and outer housing, the annulus including an inwardly tapered section. A metal faced seal is disposed in the annulus, wherein the metal faced seal includes a sliding surface and a compressive sealing surface. The sliding surface may include a malleable inlay and the compressive sealing surface may include a spring like element. Moreover, the metal faced seal radial thickness is greater than the inwardly tapered section radial thickness. | 01-14-2010 |
| 20120098203 | ENERGIZING RING NOSE PROFILE AND SEAL ENTRANCE - A wellhead seal assembly that forms a metal-to-metal seal between inner and outer wellhead members. A metal seal ring has inner and outer walls separated by a slot. An elastomeric seal is located below the seal ring and has a bottom portion that contacts an upward facing shoulder of a hanger. An energizing ring with a tapered nose is moved into the slot. The tapered nose has a compound angle that determines how much the nose travels into the slot when a force is applied to the energizing ring. Once the elastomeric seal is compressed to a desired level, the load on the energizing ring has increased to the point that the tapered nose of the energizing ring will further enters the slot and force the outer and inner walls of the metal seal into sealing engagement with the inner and outer wellhead members. | 04-26-2012 |
| 20110266752 | SEAL HAVING STRESS CONTROL GROOVE - A seal, in certain embodiments, includes a seal body having a groove on a face of the seal body. The face is configured to contact a surface of a separate component to form a seal. The groove interrupts continuity of the face between a first face portion and a second face portion. In addition, the groove enables material deformation laterally between the first face portion and the second face portion. Furthermore, the groove increases contact stress at corners between opposite walls of the groove and the respective first and second face portions. | 11-03-2011 |
| 20090322029 | Metal-to-Metal Seal for Smooth Bore - A high pressure seal assembly configured for sealing contact with an opposing surface. The seal assembly comprises an annular seal body with a sealing surface on one side of the seal body. An end of the sealing surface includes a sealing face for sealing contact with the opposing surface. The sealing surface also includes at least one support point that contacts the opposing surface when the seal is placed in sealing contact. Strategically positioning the support point on the sealing surface selectively adjusts the sealing contact stress between the sealing face and the opposing surface. | 12-31-2009 |
| 20100320695 | ANNULAR SEAL - A seal assembly capable of low temperature service is disclosed. It features upper and lower metallic backup rings that are specially shaped to act as a spring to keep the sidewalls of such rings in contact with the inside and outside surfaces to be sealed to prevent extrusion of the seal material even in low temperature situations. Inner and outer grooves are provided. O-ring seals, used for the ID of the seal, are manufactured to have a slightly greater diameter than the groove into which they will be installed. The greater length provides stored energy to promote sealing functionality in cold temperature situations. The O-rings used for the OD of the seal are manufactured to have a slightly smaller diameter than the groove into which they will be installed. The shorter length provides stored energy to promote sealing functionality in cold temperature situations. | 12-23-2010 |
| 20080217860 | Method for reducing extrusion of sealing elements - A sealing element includes an elastomeric matrix; a plurality of incorporants embedded in the matrix. | 09-11-2008 |
| 20120043726 | MULTIPLE SEALING ELEMENT ASSEMBLY - A seal assembly, method for sealing a seal assembly and a modular seal unit for a rotating control device for use in an offshore environment. The modular seal unit includes a first outer housing, a first seal housing lockable within the first outer housing, and a first sealing element disposed on a lower end of the first seal housing. The first sealing element includes a throughbore configured to receive a drill pipe, and a sealing surface configured to seal against the drill pipe. The modular seal unit also includes a first connector configured to couple the first seal housing to the first outer housing, and a second connector configured to couple the first seal housing to one selected from a second outer housing of a second modular seal unit or a running tool adapter. | 02-23-2012 |
| 20100052261 | METALLIC SEAL FOR USE IN HIGHLY-CORROSIVE OIL AND GAS ENVIRONMENTS - A metal seal assembly to seal components in highly corrosive environments, such as a sour well environment. The seal assembly is comprised of a base metal structural component with a softer metal layer applied onto its surface. The purpose of the soft metal layer is to locally deform and, thereby, form a seal against a surface of an opposing component. The base metal structure of the seal may be comprised of a corrosion-resistant alloy. In addition, the soft metal layer may be comprised of a corrosion-resistant alloy, such as a refractory metal like tantalum. | 03-04-2010 |
| 20100270746 | Wellsite Replacement System and Method for Using Same - Systems and methods for replacing equipment at a wellsite, the wellsite having a subsea stripper installed proximate a subsea borehole. The system has at least one seal assembly portion, at least one seal replacement arm and an actuator. The seal assembly portion(s) is (are) positionable in the subsea stripper and replaceable therefrom. The seal assembly portion(s) has (have) a packer extendable within the subsea stripper to form a seal about the subsea stripper. The seal replacement arm(s) is (are) for replacing the seal assembly portion(s) through a door of the subsea stripper. The actuator is for remotely actuating the seal replacement arm(s) to engage the seal assembly portion(s) whereby the seal assembly portion(s) is (are) remotely replaceable. | 10-28-2010 |
| 20110037229 | PACKING ELEMENT - A sealing element for a packer is described. The sealing element comprises an annular body having an internal surface defining a throughbore, the internal surface adapted to engage a mandrel having a mandrel diameter. The annular body internal surface defines first and second regions, the throughbore diameter of the regions being less than the mandrel diameter. | 02-17-2011 |
| 277323000 | Installation, removal, assembly, disassembly, or repair feature | 5 |
| 20100090410 | EXPANDABLE METAL-TO-METAL SEAL - A seal includes a seal body having a bridge; at least one leg extending from the bridge; and at least one concentrated deformation area of the at least one leg, at least that area being at least one of polished and annealed after machining and method. | 04-15-2010 |
| 20130093140 | Soft Skin Metal Seal and Technique of Manufacture - A seal assembly between a wellhead housing having a bore and a casing hanger, has an inner seal leg for sealing against hanger and an outer seal leg for sealing against housing. An extension extends downward from outer seal leg and is connected to a nose ring having a downward facing shoulder that rests on the hanger shoulder to provide a reaction point for setting operations. A sealing surface on the seal legs is heat treated to obtain a lower localized yield strength to provide improved sealing while maintaining mechanical load capability. | 04-18-2013 |
| 20080290602 | SELF ENERGIZING SEAL ELEMENT - A self-energizing seal element includes at least one inside interference surface having a dimension smaller than an inside dimension of an annulus in which the seal is to be disposed in use, at least one outside interference surface having a dimension larger than an outside dimension of the annulus in which the seal is to be disposed in use, the at least one inside interference surface being axially offset from the at least one outside interference surface and at least one angular flange extending between the at least one outside interference surface and the at least one inside interference surface and method for sealing. | 11-27-2008 |
| 20080277880 | Connector Assembly - A connector assembly ( | 11-13-2008 |
| 20080224413 | Sealing material to metal bonding compositions and methods for bonding a sealing material to a metal surface - A downhole well tool having a component with a metal surface to which a sealing material is adhered is disclosed. The sealing material is bonded to the metal surface through the use of an energetic material disposed between the sealing material and the metal surface. Upon activation or initiation of the energetic material, the sealing material becomes bonded to the metal surface. A plastic layer may be disposed between the sealing material and the metal surface to facilitate bonding sealing material to the metal surface. The energetic material is used to bond the plastic layer to the metal surface and may be used to bond the plastic layer to the sealing material. | 09-18-2008 |
| 277324000 | For overpressure control device (e.g., seal for a blowout preventer, etc.) | 6 |
| 20090102132 | External Pressure Gasket - A gasket having an upper surface, a substantially cylindrical inner surface abutting the upper surface, a lower surface abutting the inner surface, and generally opposite the upper surface, and an outer surface abutting the upper surface and the lower surface, and generally opposite the inner surface. The outer surface has a sealing surface between the upper surface and the lower surface, a first depression between the sealing surface and the upper surface, and a second depression between the sealing surface and the lower surface. A distance between the first depression and the second depression may be less than a distance between the upper surface and the lower surface. The outer surface may have a first seal wing between the sealing surface and the upper surface, and a second seal wing between the sealing surface and the lower surface. | 04-23-2009 |
| 20110031700 | SEAL ASSEMBLY FOR A PRESSURE PLATE IN A BLOWOUT PREVENTER - A seal assembly for a sealing a pressure plate against an opening in a blowout preventer body, has a seal groove formed in the pressure plate and a seal in the seal groove. The seal groove has a first groove portion adjacent to a sealing face of the blowout preventer, and a second groove portion extending past the sealing face into the opening of the blowout preventer body. The seal has a first seal portion in the first groove portion and a second seal portion in a second groove portion. | 02-10-2011 |
| 277325000 | Segmented radially actuated (e.g., ram type, etc.) | 1 |
| 20130099449 | SEAL - The present disclosure relates to seals and sealing arrangements, especially those used in wireline valves. The seal comprises an elastomeric seal body with a sealing surface, a plurality of generally planar inserts embedded within the elastomeric seal body adjacent the sealing surface, and having elastomeric seal material disposed between the plurality of generally planar inserts. The generally planar inserts may have a slightly wedge shape and may be embedded into the elastomeric seal body in a generally fan-shaped orientation. They may be orientated such that upon contacting a substantially tubular shaped body to be sealed around and the subsequent deformation of the seal body about said substantially tubular shaped body, the plurality of generally planar inserts become orientated such that they extend radially from the substantially tubular shaped body. | 04-25-2013 |
| 277326000 | Rotatable | 1 |
| 20130009366 | Low Profile Rotating Control Device - A system and method is provided for a law profile rotating control device (LP-RCD) and its housing mounted on or integral with an annular blowout preventer seal, casing, or other housing. The LP-RCD and LP-RCD housing can fit within a limited space available on drilling rigs. | 01-10-2013 |
| 277327000 | Axially compressed ring | 2 |
| 20090072485 | EXPANDABLE METAL-TO-METAL SEAL - A seal includes a seal body configured to form a teardrop shaped seal member upon axial compression of the seal body; a gauge ring in operable communication with the seal body and capable of applying an axial load on the seal body and method | 03-19-2009 |
| 20110012311 | Body to Bonnet Seal on a Blowout Preventer - a seal comprises a metal seal ring with a first slanted mating surface for sealing engagement with a mating surface on a body and a second slanted mating surface for sealing engagement with a mating surface on a bonnet. The mating surfaces are the same angle as measured from the axis of the ram of the BOP. The seal also defines opposing slanting surfaces which provide a degree of flexure to the seal for sealing engagement. With the application of pressure on the inside surfaces of the seal, the mating surfaces are pressed even harder against the mating surfaces of the body and bonnet. | 01-20-2011 |
| 277328000 | Longitudinally actuated packer for above ground apparatus | 3 |
| 20130069315 | SEAL HOLDER AND METHOD FOR SEALING A BORE - A seal holder for retaining a sealing arrangement ( | 03-21-2013 |
| 20080265517 | System, method, and apparatus for energizable metal seals in well heads - A bi-directional metal seal is energized and un-energized by a rolling action that takes place between radiused seal lips. The seal forms an assembly with upper and lower energizing rings. The rings have external grooves for engaging hook ends on the inner surfaces of the seal lips in a nesting arrangement when the seal is in the un-energized position. When the upper ring is pulled upward, the seal is un-energized and does not contact the adjacent conductors or wellhead members. When the upper ring is forced downward, the hooks ends of the seal are forced out of the grooves causing the seal lips to roll around in a radial outward direction, rather than stretch, and expand against the seal's outer diameter. This energizing process also causes the seal to become smaller on the seal's inner diameter, and thus forms a pressure-assist, metal-to-metal seal with the adjacent conductors. | 10-30-2008 |
| 20100327532 | METAL-TO-METAL ANNULUS SEAL ARRANGEMENT - A metal-to-metal seal is used to seal between two tubular members. In one embodiment, a metal-to-metal seal forms a seal in an annulus housing between an inner and outer diameter of tubular members of an adjustable casing sub. The seal can have an inner and an outer sealing ring, or more than one pair of inner and outer sealing rings, that can be set in place by a running tool. An energizing ring can have a tapered or bulbous surface, and can create a pre-load force against the sealing rings. | 12-30-2010 |
| 277331000 | Inflatable packer | 3 |
| 20100230902 | DOWNHOLE SEALING DEVICE AND METHOD OF MAKING - Disclosed herein is a downhole sealing device. The device includes, a swellable member, and a passageway having a perimetrically continuous wall. The swellable member is configured to cause sealing between a downhole structure and a plurality of tubulars when in a swelled condition, the plurality of tubulars are routed through a plurality of voids extending longitudinally through the swellable member, each of the plurality of voids has perimetrically continuous walls surrounding each of the plurality of tubulars. | 09-16-2010 |
| 277334000 | Particular wall structure | 2 |
| 20090189353 | Packer element for use in a stuffing box - The present invention regards a packer element ( | 07-30-2009 |
| 20080290603 | SWELLABLE MATERIAL AND METHOD - A swellable element includes a mandrel, a swellable material disposed about the mandrel and at least one cut in the swellable material and method. | 11-27-2008 |
| 277335000 | Axially facing packing cup | 1 |
| 20090194947 | Packer cup - A packer cup for sealing the interior of a pipe under pressure includes a first region of relatively soft material and a second region of relatively hard material. The region of the relatively softer material would begin at the lip of the cup and extend for at least one third the length of the cup up to the entire length of the cup. | 08-06-2009 |
| 277336000 | For below ground apparatus | 34 |
| 20130038021 | ANNULAR SEAL - A seal assembly capable of low temperature service is disclosed. It features upper and lower metallic backup rings that are specially shaped to act as a spring to keep the sidewalls of such rings in contact with the inside and outside surfaces to be sealed to prevent extrusion of the seal material even in low temperature situations. Inner and outer grooves are provided. O-ring seals, used for the ID of the seal, are manufactured to have a slightly greater diameter than the groove into which they will be installed. The greater length provides stored energy to promote sealing functionality in cold temperature situations. The O-rings used for the OD of the seal are manufactured to have a slightly smaller diameter than the groove into which they will be installed. The shorter length provides stored energy to promote sealing functionality in cold temperature situations. | 02-14-2013 |
| 20100072708 | SEAL ASSEMBLY - A seal assembly for providing a seal between a first component and a second component. The seal assembly includes a seal ramp associated with one of the components and a seal element associated with the other of the components. The seal ramp has an inclined seal ramp surface having a lower end and an upper end. The seal element is engaged with the seal ramp surface to provide the seal. The seal ramp and the seal element are movable relative to each other to enable the seal element to move along the seal ramp surface toward the upper end of the seal ramp surface. A seal energizing device urges the seal element toward the upper end of the seal ramp surface. | 03-25-2010 |
| 20090102133 | DOWNHOLE TUBULAR SEALING SYSTEM - Disclosed herein is a downhole disconnectable and length compensatable tubular sealing system. The system includes, a seal connector having a first metal seal receptive of a separate seal nipple and pressure sealably engagable therewith and at least one expansion joint sealingly connected to the seal connector. The expansion joint includes, a section of metal tubing having a sealing surface thereon and a metal-to-metal seal slidably sealingly engaged with the sealing surface. | 04-23-2009 |
| 20090146381 | TURBULENT FLOW TOOL - An apparatus ( | 06-11-2009 |
| 20100102513 | SEAL ASSEMBLY FOR A ROTARY EARTH BIT - An earth bit includes a cutting cone rotatably mounted to a lug, and a seal assembly positioned to provide a seal between the cutting cone and lug. The seal assembly includes first and second rigid rings, and a first elastomeric sealing ring which carries the first rigid ring. The second rigid ring rotates in response to the rotation of the first elastomeric sealing ring, so that the second rigid ring is less likely to lock. | 04-29-2010 |
| 20110221138 | HIGH TEMPERATURE/HIGH PRESSURE SEAL - A sealing member including a body having a recess; one or more backups extending from the body and tapering over a length thereof; and a sealing element disposed in the recess, the element including one or more steps, each step being adjacent one of the one or more backups and on a surface of the sealing element intended to make contact with a target sealing surface. | 09-15-2011 |
| 20100187763 | Sealing device - The present invention relates to a sealing device comprising a sealing ( | 07-29-2010 |
| 20100181729 | Downhole Seal Element Formed From a Nanocomposite Material - A seal element ( | 07-22-2010 |
| 20110079960 | Multi-Piece Pressure Operated Rings for a Downhole Pump Plunger - A pressure responsive seal ring assembly includes a first and second arcuate-shaped ring segment configured for non-interlocking assembly onto a plunger body. A tab extends beyond a first end of each ring segment and is received by a recessed portion in the first end of the opposing ring segment. The tabs and recessed portions provide a gap in the outer peripheral surface of the assembled ring. A second tab extends beyond a second end of the second ring segment and is received by a recessed portion in the second end of the first ring segment. Pads provide an inter-space effective for allowing fluid flow between the interior peripheral surface and the plunger body. The ring segments expand radially outward with an increase in pressure to provide a seal and retract radially inward with a decrease in pressure. The ring segments, however, remain connected and resist fluid flow therebetween. | 04-07-2011 |
| 20090322030 | Metal-to-Metal Seal for Smooth Bore - A seal assembly includes a tubular member having a longitudinal axis and a tubular member seal profile. A metal seal ring having a proximal base and a distal end has a seal ring seal profile between the proximal base and distal end that contacts the tubular member seal profile. A distal annular recess is in one of the seal profiles, the distal annular recess being spaced axially from the distal end of the seal ring, defining a seal surface between the distal end of the seal ring and the distal annular recess that engages a seal surface of the tubular member seal profile. The contacting portions of the seal surfaces form a metal-to-metal seal area. A proximal annular recess in one of the seal profiles is spaced axially from the distal annular recess, defining a support area axially spaced from the metal-to-metal seal area. | 12-31-2009 |
| 20110148043 | HIGH EXPANSION METALLIC SEAL - A downhole seal includes a seal body; two or more pips extending in a direction from the seal body associated with an intended sealing surface, the two or more pips defining nonparallel facing surfaces when in a run in position. | 06-23-2011 |
| 20110101615 | SEALING APPARATUS - A sealing apparatus for sealing a well bore is described. The sealing apparatus comprises a sealing element adapted to be moved from a run-in configuration to a set configuration, a first back-up layer and at least one second back-up layer sandwiched between the sealing element and the first back-up layer. The at least one second back-up layer comprises a thinner material than the first back-up layer. The first back-up layer and the at least one second back-up layer are adapted to be moved from the run-in configuration to the set configuration under the action of the sealing element. | 05-05-2011 |
| 20110062670 | LOAD DELAYED SEAL ELEMENT, SYSTEM, AND METHOD - A seal assembly including, a deformable force transmission portion having an inner surface and an outer surface, the force transmission portion operative to transmit an applied force to a component linked to the seal assembly, and deformable in a direction transverse to a main axis of the seal assembly in response to a increased applied force greater than a threshold setting force, and a flexible outer seal portion attached to the outer surface and method. | 03-17-2011 |
| 20110133410 | HYDRODYNAMIC BORE SEAL - The disclosed finger seals are designed to be operational under rotational velocity or a stationary condition. The contact surface of the finger seals is inclined in an axial direction. This incline causes a convergent leakage path between the finger foot surface and the bore. Therefore, the leakage flow passing through this gap exerts hydrodynamic lift on the finger and lifts the finger from the bore surface at design pressure. Since the slope is in the axial direction, the rotational velocity of the bore does not affect the hydrodynamic lift and the finger seals can operate at any rotational speed, unlike prior finger seal where the hydrodynamic lift is generated by rotational velocity. | 06-09-2011 |
| 20110187058 | Composite Metallic Elastomeric Sealing Components for Roller Cone Drill Bits - An earth boring bit has a bit body with a depending bearing pin, a cone rotatably mounted on the bearing pin, a seal gland between the cone and the bearing pin, and a seal assembly located in the seal gland. The seal assembly includes an annular metallic spring encircling the bearing pin. The spring has a geometric center line that extends in a circle around the bearing pin. The spring is elastically deformable in radial directions relative to the center line. An elastomeric layer is located on an exterior side of the spring and is biased by the spring against a surface of the seal gland. | 08-04-2011 |
| 20110148044 | HIGH EXPANSION METALLIC SEAL - A downhole seal includes a seal body; a prominent pip having extending from the seal body; and one or more reduced prominence pips adjacent the prominent pip. | 06-23-2011 |
| 20100019456 | COATINGS FOR DOWNHOLE SEAL MATERIALS AND METHOD OF MAKING THE SAME - Disclosed herein is a seal element comprising a seal coating. The seal element comprises a substrate, and a seal coating disposed on a surface of the substrate, wherein the seal coating comprises a layer of a nanoparticle material. | 01-28-2010 |
| 20110156357 | DYNAMIC SEAL MEMBER - A dynamic seal member includes a ternary fluoroelastomer (FKM) and carbon nanofibers. The carbon nanofibers are carbon nanofibers having an average diameter of 10 to 20 nm, or carbon nanofibers having an average diameter of 60 to 110 nm and subjected to a low-temperature heat treatment. The carbon nanofibers having an average diameter of 60 to 110 nm and subjected to the low-temperature heat treatment have a ratio (D/G) of a peak intensity D at around 1300 cm | 06-30-2011 |
| 20110156356 | Seal member - The seal member includes a tetrafluoroethylene-propylene copolymer (FEPM) and carbon nanofibers. The seal member has a number of cycles to fracture of 10 or more when subjected to a tension fatigue test at a temperature of 150° C., a maximum tensile stress of 2 N/mm, and a frequency of 1 Hz. The seal member exhibits excellent heat resistance and abrasion resistance. | 06-30-2011 |
| 20110156355 | SEAL MEMBER - A seal member includes a hydrogenated acrylonitrile-butadiene rubber (HNBR) and carbon nanofibers. The seal member has a number of cycles to fracture of 7000 or more when subjected to a tensile fatigue test at a temperature of 70° C., a maximum tensile stress of 4 N/mm, and a frequency of 1 Hz. The seal member exhibits excellent abrasion resistance. | 06-30-2011 |
| 20120205873 | ANCHORING SEAL - The present invention generally relates to an anchor seal for an expandable tubular assembly. In one aspect, an anchoring seal assembly for creating a seal portion and an anchor portion between a first tubular that is disposed within a second tubular is provided. The anchoring seal assembly includes an expandable annular member attached to the first tubular. The annular member has an outer surface and an inner surface. The anchoring seal assembly further includes a seal member disposed in a groove formed in the outer surface of the expandable annular member. The seal member has one or more anti-extrusion spring bands embedded within the seal member, wherein the outer surface of the expandable annular member adjacent the groove includes a rough surface. The anchoring seal assembly also includes an expander sleeve that is configured to radially expand the expandable annular member to create the seal portion and the anchor portion. | 08-16-2012 |
| 20120205872 | EXTRUSION-RESISTANT SEALS FOR EXPANDABLE TUBULAR ASSEMBLY - The present invention generally relates to extrusion-resistant seals for an expandable tubular assembly. In one aspect, a seal assembly for creating a seal between a first tubular and a second tubular is provided. The seal assembly includes an annular member attached to the first tubular, the annular member having a groove formed on an outer surface of the annular member. The seal assembly further includes a seal member disposed in the groove, the seal member having one or more anti-extrusion bands. The seal member is configured to be expandable radially outward into contact with an inner wall of the second tubular by the application of an outwardly directed force supplied to an inner surface of the annular member. Additionally, the seal assembly includes a gap defined between the seal member and a side of the groove. In another aspect, a method of creating a seal between a first tubular and a second tubular is provided. | 08-16-2012 |
| 20080296844 | DOWNHOLE SEAL APPARATUS AND METHOD - Disclosed herein is a tubular seal apparatus. The seal apparatus includes, a first tubular positioned coaxially with a second tubular having an annular space therebetween, a frustoconical portion at the first tubular having a first end and a second end, such that a radial dimension of the annular space is larger at the first end than at the second end and a tubular seal positioned within the annular space. The seal apparatus further includes an urging member in operable communication with the tubular seal, the urging member is axially movable relative to the frustoconical portion such that movement of the urging member toward the second end of the frustoconical portion urges the tubular seal into sealing engagement with the frustoconical portion and causes diametrical deformation of the tubular seal to thereby sealingly engage with the second tubular. | 12-04-2008 |
| 20110037230 | Expandable packer system - The expandable casing packing element systems for cased and open-hole wellbores include an expandable casing member having a sealing device comprising a sealing element disposed between at least two retainer rings. The retainer rings have flat cross-sections and the sealing element is forced radially outward by the expansion of the expandable casing against the two retainer rings such that the sealing element protrudes outwardly beyond the retainer rings and engages the wall of a wellbore in three locations. The retainer rings can also include flares that extend outwardly from the body of the expandable casing to which they are attached. As the expandable casing is expanded, the flares are forced inward to compress the sealing element which is then extruded radially outward through a gap between the two retainer rings to engage and seal off the wellbore. | 02-17-2011 |
| 20120139184 | Dual Seal Tubing Hanger - A dual seal system and related method seal a tubing hanger. In an embodiment, a dual seal tubing hanger includes a hanger body. The dual seal tubing hanger also includes an upper body seal and an upper body seal ring. The upper body seal is disposed between the hanger body and the upper body seal ring. In addition, the dual seal tubing hanger includes a lower body seal and a lower body seal ring. The lower body seal is disposed between the lower body seal ring and the hanger body. The upper body seal and the upper body seal ring are disposed on an opposing end of the hanger body from the lower body seal and the lower body seal ring. | 06-07-2012 |
| 20110140365 | ROTARY SEAL WITH SUPPORTED INLET - A hydrodynamically lubricated sealing element for applications where the pressure of a contained fluid can be significantly greater than the pressure of the seal lubricant. The sealing element retains the pressure of the contained fluid and provides hydrodynamic lubricant pumping activity at the dynamic sealing interface to enhance service life. The invention is particularly suitable for oilfield drilling swivel washpipe assemblies, downhole drilling tools, and rotary mining equipment, and for applications such as artificial lift pump stuffing box assemblies and centrifugal pumps where a rotating shaft penetrates a pressurized reservoir that is filled with abrasive-laden liquids, mixtures, or slurries. | 06-16-2011 |
| 277337000 | Longitudinally actuated packer | 8 |
| 20080296845 | DOWNHOLE SEAL APPARATUS AND METHOD - Disclosed herein is a tubular seal apparatus. The seal apparatus includes, a first tubular positioned coaxially with a second tubular having an annular space therebetween, a frustoconical portion at the first tubular having a first end and a second end, such that a radial dimension of the annular space is larger at the first end than at the second end and a tubular seal positioned within the annular space. The seal apparatus further includes an urging member in operable communication with the tubular seal, the urging member is axially movable relative to the frustoconical portion such that movement of the urging member toward the second end of the frustoconical portion urges the tubular seal into sealing engagement with the frustoconical portion and causes diametrical deformation of the tubular seal to thereby sealingly engage with the second tubular. | 12-04-2008 |
| 20120038115 | Anti-Extrusion Seal for High Temperature Applications - A sealing system between a tubular and a chassis. In some embodiments, the sealing system includes a sealing member and an outer ring. The sealing member is compressed between the chassis and the tubular. The sealing member has a temperature and comprises a resilient material that is expandable as the temperature increases and contractible as the temperature decreases. The outer ring is displaceable to close an annulus between an outer surface of the outer ring and the inner surface of the tubular by expansion of the sealing element, whereby the sealing member is prevented from extruding into the annulus. Further, the outer ring comprises a compliant material that is deformable under load from the sealing element as the sealing element expands. | 02-16-2012 |
| 20090066030 | ANNULAR SEAL - An annular seal device includes a mandrel, at least one cone axially moveable on the mandrel, at least one sealing element having a frustoconical outer surface and a frustoconical inner surface, at least one contact feature at the at least one cone and operably engageable with the at least one sealing element, and at least one of a blocking element and a resilient member at the mandrel, the at least one of a blocking element and a resilient member supporting a blocking surface in opposition to the at least one contact feature. The resilient member itself includes a tubular body having spring rings at axial ends thereof, and a plurality of beams extending spirally from one axial end to the other axial end. | 03-12-2009 |
| 277338000 | Packing sleeve | 4 |
| 20100038860 | Controllably-Deformable Inflatable Sleeve, Production Method Thereof and Use of Same For Pressure Metering Applications - An inflatable sleeve or packer includes a mandrel that extends along a longitudinal axis and a sealed inflatable jacket which is connected to the mandrel and selectively adopts a rest configuration or a maximum inflation configuration. The sleeve also includes a restraining sheath which covers the inflatable jacket and is at least partially formed by essentially inextensible fibres including peripheral fibres which each extend around the longitudinal axis, the peripheral fibres adopting a pleated configuration for the rest configuration of the jacket and a stretched configuration for the maximum inflation configuration thereof. | 02-18-2010 |
| 277339000 | Expanded by wedging member | 2 |
| 20080237993 | SUBSURFACE SAFETY VALVE WITH METAL SEAL - Disclosed herein is a biased actuator. The actuator includes, a reservoir, at least one piston in operable communication with the reservoir, at least one metal seal disposed about the at least one piston and in substantial sealing communication therewith, the at least one metal seal further being in substantial sealing communication with the reservoir and a biasing system in operable communication with both the reservoir and the at least one piston. | 10-02-2008 |
| 20120126482 | TUBE SEALING DEVICE AND A SEALING ELEMENT FOR SUCH A DEVICE - Device for sealing a leakage in a well tube, comprising a sealing ring and elements for forcing the sealing ring into sealing engagement with the wall of the tube. A power device being operatively connected to the elements. The sealing ring having beveled ends which are juxtaposed with a pair of mating conical rings. A cylinder-piston device engages the conical rings to force them into expanding engagement with the sealing ring. | 05-24-2012 |
| 277340000 | Particular wall structure | 1 |
| 20090189354 | RECIPROCATING-ROD SEAL - A reciprocating-rod seal ( | 07-30-2009 |
| 277342000 | Plural stacked rings | 1 |
| 20110037231 | SHAFT SEAL FOR DOWN-HOLE TOOLS - A sealing apparatus for a downhole tool having a movable member ( | 02-17-2011 |
| 277343000 | Seal (e.g., wiper, oil saver, stripper, etc.) accommodates irregular size of inner part | 3 |
| 20120187634 | METAL SEALING ADJUSTABLE CASING SUB - An adjustable casing sub having an outer housing, an inner housing insertable into the outer housing, and a ratcheting system for coupling the inner housing within the outer housing. An annulus is between a portion of the inner and outer housing, the annulus including an inwardly tapered section. A metal faced seal is disposed in the annulus, wherein the metal faced seal includes a sliding surface and a compressive sealing surface. The sliding surface may include a malleable inlay and the compressive sealing surface may include a spring like element. Moreover, the metal faced seal radial thickness is greater than the inwardly tapered section radial thickness. | 07-26-2012 |
| 20120169013 | METAL SEAL - Seal assembly ( | 07-05-2012 |
| 20120248703 | MULTI-ELASTOMER SEAL - A system, in certain embodiments has, a fluid seal having a seal body, including a seal interface having one or more engagement portions, a first elastomer portion disposed along the seal interface, and a second elastomer portion disposed along the seal interface, wherein the first and second elastomers have material properties that are different from one another. | 10-04-2012 |
| 277344000 | Segmented radially actuated packer (e.g., oil saver, gas saver, etc.) for above ground apparatus | 1 |
| 20090200747 | Breech lock stripper rubber pot mounting structure and well drilling equipment comprising same - An upper stripper rubber canister apparatus has a canister body and a canister body lid. An upper end portion of the canister body includes a breech lock structure exposed within the canister body central passage. A lower end portion of the canister body lid is configured for fitting within the central passage of the canister body. The canister body lid includes a breech lock structure that is configured for allowing the canister body lid to be fixedly engaged with the canister body by inserting a lower end portion of the canister body lid into a canister body central passage and rotating the canister body lid with respect to the canister body such that at least a portion of the canister body breech lock structure become at least partially overlapped with a respective one of the canister body lid breech lock structure. | 08-13-2009 |
