| Patent Number |
Title Of Patent |
Date Issued |
| 7552778 |
Seal cup for a wellbore tool and method |
June 30, 2009 |
| A seal cup and method is disclosed that can be used on a wellbore tool. The seal cup includes an external circumferential seal land adjacent the cup lip and an outer surface capable of permitting drainage away from the seal land of fluids, which may seep past the seal land. This acts aga |
| 7472763 |
Wear resistant tubular connection |
January 6, 2009 |
| A wear resistant casing connection including a wear resistant portion on its exterior surface is taught. A casing connection having a controlled bend angle is also taught. |
| 7442019 |
Stator of a moineau-pump |
October 28, 2008 |
| A Moineau stator includes a tube (10) having lobes (3) arranged in a configuration which is adapted to interact with a rotor and formed through a hydroforming process. |
| 7348523 |
Method of induction weld forming with shear displacement step |
March 25, 2008 |
| A shear-assisted solid state welding method for joining of metal parts, involves a first step of heating opposing surfaces in a non-passivating environment to a temperature in the hot working temperature range of the metal. A second step involves bringing the opposing surfaces into conta |
| 7328742 |
Seal cup for a wellbore tool and method |
February 12, 2008 |
| A seal cup and method is disclosed that can be used on a wellbore tool. The seal cup includes an external circumferential seal land adjacent the cup lip and an outer surface capable of permitting drainage away from the seal land of fluids, which may seep past the seal land. This acts aga |
| 7219727 |
Wear resistant tubular connection |
May 22, 2007 |
| A wear resistant casing connection including a wear resistant portion on its exterior surface is taught. A casing connection having a controlled bend angle is also taught. |
| 7165609 |
Apparatus for handling tubular goods |
January 23, 2007 |
| An apparatus for handling tubular goods which includes an elongate tubular body having a peripheral sidewall and opposed ends. The peripheral sidewall has a plurality of axial slots arranged circumferentially around the tubular body parallel to an axis of the tubular body. An articulatin |
| 7124825 |
Casing wear band and method of attachment |
October 24, 2006 |
| A crimpable wear band (105) tool has been invented for installation on casing (6), used in well bore drilling. A wear band (105) is provided having a cylindrical body which when coaxially placed over a pipe and substantially radially inwardly displaced at a plurality of points (i.e. |
| 7082997 |
Pipe centralizer and method of attachment |
August 1, 2006 |
| A crimpable centralizer has been invented for installation on pipe, such as would be useful in well bore drilling and casing operations. The present invention provides a centralizer having a cylindrical body which when coaxially placed over a pipe and substantially radially inwardly |
| 7013992 |
Borehole stabilization while drilling |
March 21, 2006 |
| A method for drilling in unconsolidated formation is taught. In particular, a method for borehole stabilization in an unconsolidated formation includes providing a drill string; rotating the drill string to drive a drill bit to drill a borehole having a borehole wall; driving the dri |
| 6904974 |
Slotting geometry for metal pipe and method of use of the same |
June 14, 2005 |
| A slotting geometry for a metal pipe for use in fabricating slotted liners. The slotting geometry includes one or more integral substantially continuous unslotted helical coils extending around a peripheral sidewall for sustantially the entire length of a tubular body. There are helical |
| 6899356 |
Tubular connection floating shoulder ring |
May 31, 2005 |
| A shoulder ring (10) for installing in the J-space between the installed pin ends within a coupling collar is taught having a body with a central opening therethrough, a first end face (12) on the body, an opposite end face (14) on the body, an inner surface (16) adjacent the central ope |
| 6898957 |
Method of reducing slot width in slotted tubular liners |
May 31, 2005 |
| A method of reducing slot width in slotted tubular liners. A slotted tubular liner (1) is provided having an interior surface (3), an exterior surface (2) and a plurality of slots (4) extending between the interior surface and the exterior surface. One or more contoured rigid forming |
| 6732822 |
Method and apparatus for handling tubular goods |
May 11, 2004 |
| An apparatus for handling tubular goods which includes an elongate body having a coupling end adapted for mating engagement with a tubular good. The coupling end includes a structural member, a flexible cylindrical cage and a pressure member. Longitudinal strips joined at their opposed e |
| 6679335 |
Method for preparing casing for use in a wellbore |
January 20, 2004 |
| A method for preparing casing for use in a wellbore such as for example, in preparation, for use to line a borehole through a formation or to act as a drill string and thereafter to remain in hole. In the method, a device supporting the use of the wellbore casing is crimped onto the oute |
| 6409226 |
"Corrugated thick-walled pipe for use in wellbores" |
June 25, 2002 |
| Thick-walled steel pipe is corrugated for the purpose of managing axial load when the pipe is used in an earth-restrained application. For example, the pipe may be used as casing in a cyclic steam stimulation well, where the axial loads are induced as the casing is heated and cooled. |
