| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 161 | SEAL ELEMENT | US14893046 | 2014-05-20 | US20160122608A1 | 2016-05-05 | Anton Akulichev; Brede Thorkildsen |
| The present invention provides a seal element made in an elastomeric composite, said material comprising an elastomeric polymer and a phase change material (PCM), wherein the PCM is able to provide thermal energy to the elastomeric polymer upon cooling to the phase transition point of the PCM. | ||||||
| 162 | CEMENTING SYSTEM FOR RISERLESS ABANDONMENT OPERATION | US14851106 | 2015-09-11 | US20160076341A1 | 2016-03-17 | Philip Martial BURGUIERES; Corey Eugene HOFFMAN; Stephen Paul BREAUX; Kenneth Thomas WILKE |
| A method for abandonment of a subsea well includes: setting a packer of a lower cementing tool against a bore of an inner casing at a location adjacent to an outer casing; fastening a pressure control assembly (PCA) to the subsea wellhead; hanging an upper cementing tool from the PCA and stabbing the upper cementing tool into a polished bore receptacle of the lower cementing tool; perforating a wall of the inner casing below the packer; perforating the inner casing wall above the packer by operating a perforator of the upper cementing tool; and pumping cement slurry followed by a release plug through bores of the cementing tools. The release plug engages and launches a cementing plug from the lower cementing tool. The cementing plug drives the cement slurry through the perforations below the packer and into an inner annulus formed between the inner casing and the outer casing. | ||||||
| 163 | Closing of underwater oil spills with the help of magnetic powders | US13700866 | 2011-06-01 | US09163475B2 | 2015-10-20 | 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. | ||||||
| 164 | DRILLING METHOD FOR DRILLING A SUBTERRANEAN BOREHOLE | US14431917 | 2013-09-27 | US20150252637A1 | 2015-09-10 | Christian Leuchtenberg; Pat Savage |
| A method of drilling a subterranean wellbore using a drill string including the steps of estimating or determining a reduced static density of a drilling fluid based on the equivalent circulating density of the drilling fluid in a section of the wellbore, providing a drilling fluid having substantially that reduced static density, introducing the drilling fluid having said reduced static density into the wellbore, and removing the drilling fluid from the wellbore via a return line. | ||||||
| 165 | APPARATUS AND METHOD FOR STRIPPING SOLIDS AND FLUIDS FROM A STRING USED IN DRILLING OR SERVICING WELLS | US14601930 | 2015-01-21 | US20150211320A1 | 2015-07-30 | Quinn A.J. Holtby; Dallas Greenwood |
| Three or more overlapping sealing members arranged circumferentially around a passage in a supporting body form an annular seal around a pipe inserted into the passage. | ||||||
| 166 | Hydraulic Anchor for Downhole Packer | US14311260 | 2014-06-21 | US20140374119A1 | 2014-12-25 | Colin Dewars; Philip Scott; Steven Scott |
| A hydraulic anchor is coupled to a packer subassembly of a tool string. The hydraulic anchor, when actuated by fluid pressure, engages the surrounding wellbore, holding the tool string in place within the wellbore. A packer may then be actuated, held in position within the wellbore by the hydraulic anchor. In some embodiments, an inflatable packer may be held in the desired location by the hydraulic anchor. In some embodiments, a straddle packer assembly may be held in place by the hydraulic anchor. In some embodiments, a swellable packer may be held in place during the swelling process by the hydraulic anchor. | ||||||
| 167 | SEAL SYSTEM FOR DOWNHOLE TOOL | US14339730 | 2014-07-24 | US20140345949A1 | 2014-11-27 | David S. CRAMER; Michael J. HARVEY |
| A downhole tool may include a tubular member having an axis, a wall with a bore, and an orifice extending radially from the bore through the wall. A piston may be configured to be co-axially mounted in the bore of the tubular member and be axially reciprocated therein, the piston having a piston bore. An aperture may extend radially from the piston bore to the bore of the tubular member. First and second glands formed in an outer surface adjacent the aperture. The first gland may be axially spaced apart from the second gland. In addition, a seal system can be configured to be mounted to the piston. The seal system can include a primary seal for the first gland, a secondary seal for the second gland, and the secondary seal is harder than the primary seal. | ||||||
| 168 | ELONGATED SEALING MEMBER FOR DOWNHOLE TOOL | US14135008 | 2013-12-19 | US20140224497A1 | 2014-08-14 | 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. | ||||||
| 169 | ADAPTER ASSEMBLY FOR A WELL SYSTEM | US13786837 | 2013-03-06 | US20140151023A1 | 2014-06-05 | Steffen R. Wellstein |
| An adapter assembly for a well system includes at least one coupling member having a passage formed therein and an adapter including a neck duct formed thereon. The neck duct is received in the passage of the coupling member forming a substantially fluid-tight seal therebetween. At least the adapter is formed from a lead-free material, minimizing a weighted average lead content of the adapter assembly. | ||||||
| 170 | Pressure Activated Down Hole Systems and Methods | US13585954 | 2012-08-15 | US20140048281A1 | 2014-02-20 | Frank Acosta; Nicholas F. Budler; David D. Szarka |
| Systems and methods for activating a down hole tool in a wellbore. A piston is moveable from a first position to a second position for activating the down hole tool. The piston includes a first side exposed to a first chamber, and a second side exposed to a second chamber. A rupture member has a first side exposed to the first chamber and a second side exposed to a third chamber. The rupture member is configured to rupture when a pressure differential between the first chamber and the third chamber reaches a predetermined threshold value, at which point the rupture member allows fluid communication between the first chamber and the third chamber. When the rupture member is intact, the piston is in the first position, and when the rupture member ruptures, the piston moves to the second position and activates the down hole tool. | ||||||
| 171 | METHODS AND DEVICES FOR ISOLATING WELLHEAD PRESSURE | US14035875 | 2013-09-24 | US20140020894A1 | 2014-01-23 | 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. | ||||||
| 172 | ANTI-ALTERATION WELLHEAD VAULT | US13789428 | 2013-03-07 | US20130233569A1 | 2013-09-12 | 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 placed over and 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. | ||||||
| 173 | Apparatus and method for compensating for pressure changes within an isolated annular space of a wellbore | US12925307 | 2010-10-19 | US08347969B2 | 2013-01-08 | Benjamin R. Orr; Edward T. Wood; Aubrey C. Mills |
| Pressure relief devices comprise a chamber having a piston disposed therein. One side of the piston defines a hydrostatic chamber in fluid communication with an outside environment, such as an isolated wellbore annulus, through a port. The other side of the piston defines a sealed or isolated chamber. The pressure relief device permits changes in pressure in the isolated wellbore annulus to be distributed into the chambers so as to either reduce the pressure within the isolated wellbore annulus or increase the pressure within the wellbore annulus, both of which lessen the likelihood that the change in pressure within the isolated wellbore annulus will damage wellbore components disposed therein. | ||||||
| 174 | ASSEMBLY FOR CONTROLLING ANNULI BETWEEN TUBULARS | US12779044 | 2010-05-13 | US20110278023A1 | 2011-11-17 | 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. | ||||||
| 175 | INSERTION OF A PACKOFF INTO A WELLHEAD | US13086537 | 2011-04-14 | US20110253388A1 | 2011-10-20 | Daniel A. WILLOUGHBY |
| Apparatus for the insertion of a pack-off into a recess in a bore of a wellhead body comprises 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 said activating sleeve into engagement with the packoff 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 packoff 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. | ||||||
| 176 | SUBSEA WELLHEAD PROVIDING CONTROLLED ACCESS TO A CASING ANNULUS | US13086572 | 2011-04-14 | US20110253378A1 | 2011-10-20 | Daniel A. WILLOUGHBY |
| A subsea wellhead assembly includes a wellhead body which disposed to support an isolation sleeve for a production tree and to support below the isolation sleeve a production casing hanger for a production casing string. The body also supports a second casing string outside the production casing string whereby to form an annulus between the casing strings. The body includes a passageway which is in communication with the annulus near a lower end of the body and extends upwardly within the wall of the body towards the upper end of the body. A valve is accommodated in the upper part of the body and provides controlled communication between the passageway and a port which can be coupled to the isolation sleeve. The valve is controllable from a production tree in particular is moveable between an open position and a closed position in response to fluid pressure applied to the valve from a production tree by way of the isolation sleeve. | ||||||
| 177 | Cover assembly for flanges and other tubular members | US12210162 | 2008-09-12 | US07963320B2 | 2011-06-21 | 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. | ||||||
| 178 | METHODS AND DEVICES FOR ISOLATING WELLHEAD PRESSURE | US12920824 | 2009-02-24 | US20110011599A1 | 2011-01-20 | 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. | ||||||
| 179 | EXPANDABLE METAL-TO-METAL SEAL | US11854950 | 2007-09-13 | US20090072485A1 | 2009-03-19 | Sean L. Gaudette; James C. Doane |
| 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 | ||||||
| 180 | Oilfield Apparatus Comprising Swellable Elastomers Having Nanosensors Therein And Methods Of Using Same In Oilfield Application | US11564467 | 2006-11-29 | US20080125335A1 | 2008-05-29 | Rashmi B. Bhavsar |
| Apparatus, oilfield assemblies, and methods of use are described. The apparatus comprises, in one embodiment, a swellable elastomeric composition comprising a swellable elastomer and one or more nanosensors dispersed therein and shaped into an oilfield element. Methods of the invention comprise using an apparatus of the invention in an oilfield operation, thus exposing the oilfield element to an oilfield environment, and sensing one or more reservoir parameters. This abstract allows a searcher or other reader to quickly ascertain the subject matter of the disclosure. It will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b). | ||||||
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