| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 301 | APPARATUS AND METHOD USABLE FOR OPEN-WATER RIGLESS AND RISERLESS PLUG AND ABANDONMENT (P&A) WORK | PCT/US2015044518 | 2015-08-10 | WO2016023037A2 | 2016-02-11 | WRIGHT DAVID C |
| In one system, there is an emergency pipe stroker tool, wherein the emergency pipe stroker tool is configured to act as a first mechanical barrier for a well. Further, there is an emergency quick disconnect tool in communication with the emergency pipe stroker tool, wherein the emergency quick disconnect tool comprises a connector assembly and a fluid conduit in communication with the well, and further wherein the connector assembly is configured to simultaneously detach from the well and to seal the well. Further still, there is a cement retainer in communication with the emergency quick disconnect tool and the emergency pipe stroker tool, wherein the cement retainer is configured to act as a second mechanical barrier for the well, wherein, the emergency pipe stroker tool, the emergency quick disconnect tool, and the cement retainer act in coordination to seal a well while establishing the multiple mechanical barriers. | ||||||
| 302 | HYDRAULIC ANCHOR FOR DOWNHOLE PACKER | PCT/US2014043534 | 2014-06-21 | WO2014205424A2 | 2014-12-24 | DEWARS COLIN; SCOTT PHILIP; SCOTT STEVEN |
| 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. | ||||||
| 303 | PACKER SETTING AND/OR UNSETTING | PCT/US2013050371 | 2013-07-12 | WO2014012056A3 | 2014-10-30 | RIOS ARISTEO III |
| Linear movement via a sliding mandrel 200 configured to translate axially is converted into radial movement to compress a packer 116. The packer 116 is configured to seal an item 300 of oilfield equipment typically in a subsea environment. The packer 116 may also be used to return or reverse the radial movement and/or the linear movement. | ||||||
| 304 | SUBSEA WELLHEAD PROVIDING CONTROLLED ACCESS TO A CASING ANNULUS | PCT/GB2011000401 | 2011-03-22 | WO2011128611A3 | 2012-12-13 | WILLOUGBY DANIEL ALEXANDER |
| A subsea wellhead assembly includes a wellhead body (1) which disposed to support an isolation sleeve (39) for a production tree and to support below the isolation sleeve a production casing hanger (21) for a production casing string. The body also supports a second casing string outside the production casing string whereby to form an annulus (22) between the casing strings. The body includes a passageway (25) 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 (27) is accommodated in the upper part of the body and provides controlled communication between the passageway (25) and a port (43) which can be coupled to the isolation sleeve. The valve is controllable from a production tree and 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. | ||||||
| 305 | APPARATUS AND METHOD FOR COMPENSATING FOR PRESSURE CHANGES WITHIN AN ISOLATED ANNULAR SPACE OF A WELLBORE | PCT/US2011055663 | 2011-10-11 | WO2012054253A3 | 2012-07-05 | ORR BENJAMIN R; WOOD EDWARD T; MILLS AUBREY C |
| 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. | ||||||
| 306 | METHODS AND DEVICES FOR ISOLATING WELLHEAD PRESSURE | PCT/US2009035028 | 2009-02-24 | WO2009123805A3 | 2010-03-11 | NGUYEN DENNIS P; ANDERSON DAVID; VANDERFORD DELBERT |
| 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. | ||||||
| 307 | A SELF ENERGIZING SEAL ELEMENT | PCT/US2008063699 | 2008-05-15 | WO2008147707A3 | 2009-02-26 | CORONADO MARTIN P |
| 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 hav ing 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. | ||||||
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