Quotables
"I watched his countenance closely, to see if he was not deranged ... and I was assured by other senators after he left the room that they had no confidence in it."
U.S. Senator Smith of Indiana ; After seeing Samuel Morse demonstrate the telegraph.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7341111 | Expandable bridge plug and setting assembly Bridge plug and setting assembly may be used in a well with a tubular therein to control flow through the tubular. A plurality of fluid powered units 16, 24 are suspended in a well from a work string 14 for exerting a driving force. A plug member 50... | 03/11/2008 |
| 7231983 | Split locking ring for wellhead components The present invention is directed to a split locking ring for wellhead components. In one illustrative embodiment, the device comprises a first internally threaded wellhead component, a second wellhead component, at least a portion of which is positioned within an o... | 06/19/2007 |
| 7231970 | Non-rotational casing hanger and seal assembly running tool A non-rotational casing hanger and seal assembly running tool for use in oil and gas drilling operations has a mandrel and a tool body that is carried by the mandrel. The tool body supports a plurality of latching segments for releasably connecting the tool body to ... | 06/19/2007 |
| 7220067 | Cable splice protector The present invention provides a protector assembly and process for protecting a downhole connection of a line (e.g., fiber optic or electrical) from the wellbore environment. Inside the housing that provides protection from the wellbore environment is a subassembly... | 05/22/2007 |
| 7204305 | System and method for installing a liner in a borehole A system and a method for installing a liner conduit in a borehole. The system includes a packer assembly, a running tool or a packer assembly and a running tool. The method uses a packer assembly and a running tool for installing a liner conduit in a borehole. The ... | 04/17/2007 |
| 7147052 | Hyraulically releasable inflation tool for permanent bridge plug Various embodiments of an improved downhole disconnect tool are provided, some of which may include a first housing releasably connected to a second housing, a first piston releasably connected to the first housing, and a second piston releasably connected to the se... | 12/12/2006 |
| 7096956 | Wellhead assembly with pressure actuated seal assembly and running tool A subsea well assembly includes a wellhead housing 50 having a cylindrical inner sealing surface and a tubular hanger 10 having a tapered external sealing surface. The running tool 30 includes a central stem 40 connected to the running st... | 08/29/2006 |
| 7086481 | Wellbore isolation apparatus, and method for tripping pipe during underbalanced drilling The present invention relates to an apparatus and method for isolating a wellbore condition such as formation pressure during a wellbore operation. The invention has particular application in connection with underbalanced drilling. In one arrangement, a formation is... | 08/08/2006 |
| 7062960 | Blow out preventer testing apparatus The consequences of any failure of a blow out preventer assembly to operate correctly in an emergency can be far reaching. Thus, there is provided an apparatus for registering parameters in the bore of a member which is, in use, connected to a pressurised housing, t... | 06/20/2006 |
| 7011153 | Hydraulically released inflation tool for permanent bridge plug Various embodiments of an improved downhole disconnect tool are provided, some of which may include a first housing releasably connected to a second housing, a first piston releasably connected to the first housing, and a second piston releasably connected to the se... | 03/14/2006 |
| 6969070 | Split carrier annulus seal assembly for wellhead systems The seal assembly 10 seal between a subsea wellhead housing 12 and a casing hanger 16. A metal seal body 20 includes fingers 32 and 34 and one or more elastomeric seals 38. An upper seal body 64 may include thr... | 11/29/2005 |
| 6926088 | Sequential release packer J tools for single trip insertion and extraction The present invention is to a pre-selected set of packer tools having J tools and on/off tools (“stingers” and “washovers”) with varying strokes and varying set and release directions to enable the operator to individually address the various packers. By inc... | 08/09/2005 |
| 6915858 | Element latch system and method of use A latching assembly for a lower collar on an inflatable is provided. After deflation, the lower collar is engaged to the mandrel so that the deflated inflatable can be advanced with other connected downhole equipment, such as screens to be expanded, in a location fu... | 07/12/2005 |
| 6779600 | Labyrinth lock seal for hydrostatically set packer A hydrostatically set packer is disclosed. The actuating piston is locked for run in by a lock sleeve and lock dog arrangement. When the desired depth is reached well pressure is built up to break a rupture disc to allow hydrostatic pressure to act on one side of a ... | 08/24/2004 |
| 6745844 | Hydraulic power source for downhole instruments and actuators Disclosed is a system for using pressure differential between completion fluid in an oil well and produced fluids to power downhole devices, including instruments and actuators. A conduit is provided bypassing a packer which seals a production string to a well casin... | 06/08/2004 |
| 6736214 | Running tool and wellbore component assembly The invention provides a running tool for a wellbore component. In one aspect, the tool includes a body having a longitudinal bore therethrough with an upper end for connection to a tubular run-in string and a selective attachment assembly for a wellbore component t... | 05/18/2004 |
| 6705615 | Sealing system and method A sealing system for sealing with a generally cylindrical surface 52 of a tubular or another tool 50 includes an annular packer element 10, a wedge ring 60 having a substantially conical outer surface 62 configured to radially expa... | 03/16/2004 |
| 6688400 | Downhole sealing A method of providing a downhole seal, such as a packer, in a drilled bore between inner tubing and outer tubing comprises: providing an intermediate tubing section defining a seal arrangement for engaging with the inner tubing; and radially plastically d... | 02/10/2004 |
| 6675890 | Packing device for oil wells A packing tool assembly for sealing oil well bores that basically includes an elongated tubular member, two deformable sealing units, two stopper ring members and a cylinder member. A setting tool transports the packing tool assembly and the former stays ... | 01/13/2004 |
| 6629563 | Packer releasing system In a release system for a packer the release ring is minimally exposed in the wellbore and is actuated by a release tool, which comprises a collet and cone with a relative movement feature. In the preferred embodiment, the release ring has alternating cut... | 10/07/2003 |
| 6315054 | Assembly and method for locating lateral wellbores drilled from a main wellbore casing and for guiding and positioning re-entry and completion device in relation to these lateral wellbores Assembly and method for locating lateral wellbores in a main wellbore casing for positioning completion members in the lateral wellbore and the main wellbore casing and for orientating and positioning reentry and completion devices into the lateral wellbo... | 11/13/2001 |
| 6167963 | Removable non-metallic bridge plug or packer A composite packer or bridge plug includes substantially all nonmetallic components. The design allows the setting tool metallic components to be retrieved after the bridge plug is set. The slips contain flats with mating flats on the cones which extend t... | 01/02/2001 |
| 6167970 | Isolation tool release mechanism A release mechanism for use with setting wellbore isolation tools, such as packers or bridge plugs. The release mechanism typically includes a release piston which selectively isolates equalization ports extending from the interior to the exterior of a se... | 01/02/2001 |
| 6152233 | Surge anchor assembly The present invention is a surge anchor mechanism which includes a main body, lower unit slidable in relation to the main body, and slip members. The slip members have at least one inclined end surface. The lower unit has an inclined surface forming a fru... | 11/28/2000 |
| 6142227 | Expandable retrievable bridge plug A bridge plug (1) for use in a casing (7), for example in oil and/or gas wells, comprising a packing element (2) of a resilient material is disclosed. The packing element (2) is adapted for at impact from a running tool to expand from a first diameter, to... | 11/07/2000 |
| 5884699 | Retrievable torque-through packer having high strength and reduced cross-sectional area A packer for use in subterranean wellbores provides efficient utilization of its cross-sectional area with mechanisms therein for anchoring, sealing, and torquing through the packer. In a preferred embodiment, a retrievable packer has a tubular mandrel, r... | 03/23/1999 |
| 5813458 | Indicating dog sub for weight-set packers A dog sub is provided for use in an assembly for running liners with a weight-set packer. The dog sub allows rotation of the work string in an effort to set down weight on the dogs. The dogs are allowed to move radially outwardly by a pick-up force from t... | 09/29/1998 |
| 5791413 | Wireline-set, retrievable packer with flow control plug at the top A wireline-set retrievable packer with the flow plug on top is disclosed which uses a conventional setting tool. After setting the packer, picking up on the wireline allows the adapter assembly to disengage from the on/off seal nipple/packer so that the s... | 08/11/1998 |
| 5579839 | Bulge control compression packer A bulge control compression packer having an elastomeric tubular body and a bulge control member to reinforce the tubular body. The bulge control member including interwoven support elements which generally avoid cutting and gouging the tubular body when ... | 12/03/1996 |
| 5560426 | Downhole tool actuating mechanism The invention relates to actuation of a downhole tool by hydraulic forces in a structure that does not employ lateral openings through the wall of the tool. By a variety of mechanisms, the tool wall is urged to flex preferably within its elastic limits. T... | 10/01/1996 |
| 5433269 | Retrievable packer for high temperature, high pressure service In a retrievable packer adapted for service under high temperature and pressure conditions, improved sealing is provided by a seal element prop surface which is radially offset with respect to the seal element support surface of the packer body mandrel. A... | 07/18/1995 |
| 5355961 | Metal and elastomer casing hanger seal A casing hanger seal assembly utilizes a deformable metal body and elastomeric seal rings which are O-rings. The seal rings are located in grooves in unbonded condition in the metal body. The inner wall of the metal body is tapered, matching the taper on ... | 10/18/1994 |
| 5339894 | Rubber seal adaptor A rubber seal adaptor for a well having a pipe fitting, a compression sleeve about the pipe fitting and rubber seal rings positioned about the pipe fitting so as to be compressed by the compression sleeve. A first circular groove in the bore of the compre... | 08/23/1994 |
| 5333692 | Straight bore metal-to-metal wellbore seal apparatus and method of sealing in a wellbore A seal apparatus is provided for use in a subterranean wellbore having a wellbore tubular disposed therein. The wellbore tubular defines a wellbore surface. The seal includes a number of components which cooperate together. A conveyance tubular is provide... | 08/02/1994 |
| 5327965 | Wellhead completion system A well completion system utilizes a seal which carries its own load ring. The seal is lowered into the bore of a wellhead housing around a tubular member. The seal carries a split load ring, which once positioned will move outward into engagement with a g... | 07/12/1994 |
| 5311938 | Retrievable packer for high temperature, high pressure service In a retrievable packer adapted for service under high temperature and high pressure operating conditions, improved sealing is provided by a seal element prop surface which is radially offset with respect to the seal element support surface of the packer ... | 05/17/1994 |
| 5307879 | Positive lockdown for metal seal A casing or tubing hanger has a metal seal which also incorporates a locking device which locks the seal to the wellhead housing. An annular recess is formed in the bore of the wellhead housing. The seal has an energizing ring that moves downward to set t... | 05/03/1994 |
| 5174376 | Metal-to-metal annulus packoff for a subsea wellhead system An all-metal, well annulus packoff assembly for establishing a high pressure, corrosion resistant metal-to-metal seal between a wellhead housing and a casing hanger, including an annular metallic seal element having a generally upstanding U-shaped cross s... | 12/29/1992 |
| 5143015 | Coiled tubing set inflatable packer, bridge plug and releasing tool therefor A coiled tubing set inflatable packer, bridge plug and releasing tool therefor. The packer and bridge plug comprise an adapter with a mandrel slidably disposed therein. A pressure actuated piston releases a locking ball between the mandrel and adapter dur... | 09/01/1992 |
| 5141053 | Compact dual packer with locking dogs A compact, retrievable packer has a unitary mandrel body which is intersected by one or more longitudinal production bores. The running length of the packer is reduced and premature set/release are prevented by a lock assembly which releasably locks the l... | 08/25/1992 |
