Surface communication apparatus and method for use with drill string telemetry

a communication apparatus and telemetry technology, applied in the field of drilling and producing hydrocarbon wells, can solve the problems that the manner in which this can be advantageously achieved has not yet been realized

Inactive Publication Date: 2007-02-08
INTELLISERV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the manner in which this can be advantag

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  • Surface communication apparatus and method for use with drill string telemetry
  • Surface communication apparatus and method for use with drill string telemetry
  • Surface communication apparatus and method for use with drill string telemetry

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Embodiment Construction

[0027]FIG. 1 illustrates a wellsite system in which the present invention can be employed. The wellsite can be onshore or offshore. In this exemplary system, a borehole 11 is formed in subsurface formations by rotary drilling in a manner that is well known. The drilling could alternatively be mud-motor based directional drilling, as is also well known.

[0028] A drill string 12 is suspended within the borehole 11 and has a bottom hole assembly 100 which includes a drill bit 105 at its lower end. The surface system includes platform and derrick assembly 10 positioned over the borehole 11, the assembly 10 including a rotary table 16, kelly 17, hook 18 and rotary swivel 19. The drill string 12 is rotated by the rotary table 16, energized by means not shown, which engages the kelly 17 at the upper end of the drill string. The drill string 12 is suspended from a hook 18, attached to a traveling block (also not shown), through the kelly 17 and a rotary swivel 19 which permits rotation of t...

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Abstract

A system for bidirectional communication between the downhole equipment and a processor subsystem at the earth's surface, including: a section of wired drill pipes comprising at least the upper portion of a string of drill pipes, and forming at least a portion of a bidirectional communication link between downhole equipment and the top of the string of drill pipes; a drive string portion of the drill string, mechanically coupleable with the topmost wired drill pipe; a drive mechanism mechanically coupleable with said drive string portion, for rotating the drill string; a first wireless transceiver subsystem mounted on the drive string portion of the drill string, for rotation in conjunction with the drill string; a cable, electrically coupled between the top joint of the topmost wired drill pipe and the first transceiver subsystem; and a second wireless transceiver subsystem coupled with the uphole processor subsystem, the second wireless transceiver subsystem communicating bidirectionally with the first wireless transceiver subsystem.

Description

FIELD OF THE INVENTION [0001] This invention relates to the fields of drilling and producing hydrocarbon wells, and to the measuring of downhole formation characteristics, and to drill string telemetry for bidirectional communication of measurement and control information between dowhhole and surface equipment, and to a surface communication system for bidirectional communication between drill string telemetry and a surface processor. BACKGROUND OF THE INVENTION [0002] The advent of measurement while drilling (MWD) and logging while drilling (LWD), as well as development of surface control of special drilling processes, such as directional drilling, have been important advances in the art of drilling and producing hydrocarbon wells. These processes require communication, in both directions, between the surface and the downhole measuring and drilling equipment. At present, mud pulse telemetry is the only technique in widespread commercial use for communication while drilling, between...

Claims

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Application Information

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IPC IPC(8): G01V3/00
CPCE21B17/003E21B17/028G01V11/002E21B47/122E21B47/12E21B47/13
Inventor LI, QIMINGSANTOSO, DAVIDSHERMAN, MARKMADHAVAN, RAGHULEBLANC, RANDALL P.THOMAS, JOHN A.MONTERO, JOSEPH
Owner INTELLISERV
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