| VAM DRILLING FRANCE Patent applications |
| Patent application number | Title | Published |
|---|
| 20120122330 | DEVICE FOR ELECTRICALLY CONNECTING TUBULAR COMPONENTS OF A DRILL SYSTEM, AND CORRESPONDING COMPONENT AND JUNCTION - A tubular component of a drill stem comprises a first end including a first threading, a second end including a second threading, and a substantially tubular central zone, the component further comprising a device for electrical connection with another component, mounted on at least one of the ends, and a cable for the transmission of signals between the first end and the second end, connected to the connecting device, the connecting device including at least one conductor provided with an electrically insulated link portion and an electrical contact portion; a dielectric to isolate the insulated link portion; and an annular sealing surface defining a protected zone, said electrical contact portion being disposed in the protected zone, the annular sealing surface being disposed at the surface of the insulated link portion. | 05-17-2012 |
| 20120111555 | WIRED DRILL PIPE WITH IMPROVED CONFIGURATION - A drill string element including a main pipe with connection ends and a protective mechanism for at least one wire. The protective mechanism extends within a central bore of the main pipe. The main pipe presents a first hole in one of the connection ends and a second hole in the other connection end, both holes communicating with the central bore. The protective mechanism includes a guide tube arranged for housing the wire, both ends of which being respectively disposed within the first hole and the second hole. A retaining mechanism is arranged in at least one of the first hole and the second hole for the respective end of the guide tube. The retaining mechanism is configured to prevent the respective end of the guide tube from moving relative to the one of the first hole and the second hole according to at least one longitudinal direction of the hole. | 05-10-2012 |
| 20110290475 | TUBULAR DRILL STRING COMPONENT AND CORRESPONDING DRILL STRING - Tubular drill string component for drilling a hole with circulation of a drilling fluid around said component and in a direction going from a drill hole bottom to the surface. The component includes a first end including a female threading, a second end including a male threading, and a substantially tubular central zone. The component includes a communication tube arranged at least in the central zone and in contact with a bore of the central zone. A signal transmission cable is arranged in the tube. The communication tube includes a body formed from at least one metal strip arranged with an annular component. The body includes, in section along a plane passing through the axis of the tube, at least two axially elongated lengths, partially overlapping one another with an axial play selected to accommodate the maximum elastic deformation of the component under axial compressive and/or bending stress. | 12-01-2011 |
| 20110155470 | DRILL STRING ELEMENT WITH INSTRUMENTS - A drill string element including an elongate tubular body delimiting an interior surface longitudinally including at least one portion of revolution and including a first hole provided in the elongate tubular body. That first hole includes a first end opening at the portion of revolution, and in a vicinity of the first end a longitudinal axis intersecting the interior surface at an intersection location. The longitudinal axis, in projection into a first plane passing through the central axis of the portion of revolution and containing the intersection location, forms a first angle of a value that is not zero and in projection into a second plane tangential to the interior surface at the intersection location forms a second angle of a value that is not zero. | 06-30-2011 |
| 20100326738 | DRILL PACKER MEMBER, DRILL PIPE, AND CORRESPONDING DRILL PIPE STRING - An element for a drill string includes at least one zone bearing on a wall of the drilled hole, the bearing zone including at least one bearing section with an external diameter greater than the diameter of the other portions of the element, and two activation zones substantially adjacent to the bearing zone and disposed upstream and downstream of the bearing zone. The activation zones include a plurality of grooves with a generally helical shape about the axis of the element. The bearing zone includes two guide sections in a shape of a convex rounded body of revolution, disposed upstream and downstream of the bearing section in a manner adjacent to the bearing section, and tangential to the bearing section and to the activation zones. | 12-30-2010 |
