Quotables
"It is my heart-warmed and world-embracing Christmas hope and aspiration that all of us, the high, the low, the rich, the poor, the admired, the despised, the loved, the hated, the civilized, the savage (every man and brother of us all throughout the whole earth), may eventually be gathered together in a heaven of everlasting rest and peace and bliss, except the inventor of the telephone. "
Mark Twain ; Christmas greetings, 1890
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| Number | Title | Issue Date |
| 7942199 | Method for installing wellbore string devices A method for securing a wellbore string device to a wellbore liner tubular employs a swelling elastomer to frictionally grip a gap between the wellbore string device and the liner tubular. The swelling elastomer is positioned between the wellbore string device and t... | 05/17/2011 |
| 7275594 | Stab guide A tool string stab guide for axially aligning first tool string components with second tool string components is disclosed. The stab guide has a body with an axial length along a longitudinal axis with a first and a second section. The first section of the body adap... | 10/02/2007 |
| 7191829 | Gripper assembly for downhole tools A gripper assembly for anchoring a tool within a downhole passage and for possibly assisting movement of the tool within the passage. The gripper assembly includes an elongated mandrel and flexible toes that can be radially displaced to grip onto the surface of the ... | 03/20/2007 |
| 7048047 | Gripper assembly for downhole tools A gripper assembly for anchoring a tractor within a downhole passage and for assisting movement of the tractor within the passage. The gripper assembly includes an elongated mandrel and flexible toes that can be radially displaced to grip onto the surface of the pas... | 05/23/2006 |
| 6915856 | Apparatus and methods for preventing axial movement of downhole tool assemblies A slip assembly apparatus is adapted (i) to be deployed into a wellbore (ii) to prevent axial movement of a downhole tool assembly in the wellbore when the slip assembly apparatus is actuated and external forces are imposed on the downhole tool assembly; (iii) to al... | 07/12/2005 |
| 6715559 | Gripper assembly for downhole tractors A gripper assembly for anchoring a tractor within a downhole passage and for assisting movement of the tractor within the passage. The gripper assembly includes an elongated mandrel and flexible toes that can be radially displaced to grip onto the surface of the pas... | 04/06/2004 |
| 6640894 | Gripper assembly for downhole tools A gripper assembly for anchoring a tractor within a downhole passage and for assisting movement of the tractor within the passage. The gripper assembly includes an elongated mandrel and flexible toes that can be radially displaced to grip onto the surface... | 11/04/2003 |
| 6637511 | Borehole casing centralizer A borehole casing centralizer segment (1) including a first collar portion (3), a second collar portion (5), and bows (7) extending between the first collar portion (3) and the second collar portion (5). First connectors (9) are provided at first location... | 10/28/2003 |
| 6464003 | Gripper assembly for downhole tractors A gripper assembly for anchoring a tractor within a downhole passage and for assisting movement of the tractor within the passage. The gripper assembly includes an elongated mandrel and flexible toes that can be radially displaced to grip onto the surface... | 10/15/2002 |
| 5988276 | Compact retrievable well packer A packer is provided which reduces the number of components required in a retrievable packer. The packer is compact in size, and convenient and economical in use. In a described embodiment, the packer includes seal carrying and gripping assemblies mounted... | 11/23/1999 |
| 5287920 | Large head downhole chemical cutting tool A downhole chemical cutting tool for use in a well bore to cut large diameter conduits including an elongated tool body having a chemical section adapted to contain a chemical cutting agent and a cutting section adapted to receive the cutting agent from t... | 02/22/1994 |
| 5226484 | Emergency casing support using standard casing hanger An emergency casing support utilizes a conventional casing hanger. Casing hanger lands on a wellhead housing internal landing shoulder. The emergency support secures to the lower end of the casing hanger. The emergency support has a body which carries a s... | 07/13/1993 |
| 5148867 | Stop for an oil well swabbing device A stop for an oil well swabbing device which is economical to use, is readily positioned in the well casing at the desired level, and is readily removable with a conventional fishing tool.... | 09/22/1992 |
| 5097905 | Centralizer for well casing An improved centralizer for well casing, comprising an externally threaded upper anchor fixed to the casing, an upper collar threaded to the upper anchor, a lower anchor fixed to the casing, a lower collar bearing against said lower anchor, and a pluralit... | 03/24/1992 |
| 4523641 | Liner hanger with channel guides A liner hanger is shown of the type used to hang a well liner in a surrounding well bore. The hanger includes a tubular mandrel which is connectible in a liner string. A set of circumferentially-spaced gripping slips are mounted about the mandrel with eac... | 06/18/1985 |
| 4113010 | Casing stop for well tools and an insertion device therefore A well anchor for use in a cased well having anchor members of bowed springs and a vertically reciprocable rod actuator movable from the surface to set the anchor.... | 09/12/1978 |
