Downhole Tool with Integrated Circuit

a technology of integrated circuits and tools, applied in the field of downhole drilling, can solve the problems of circuitry knocking out of place or damage, mud and other downhole fluids may have a detrimental effect on electronic equipment downhole exposed, and the environment of downhole has proved to be rather hostile to electronic equipmen

Inactive Publication Date: 2007-02-01
INTELLISERV INT HLDG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0013] It should also be understood that for the purposes of this specification the term “protected” refers to a state of being substantially secure from and able to function in spite of potential adverse operating conditions.

Problems solved by technology

Notwithstanding its utility in the drilling process, downhole has proven to be a rather hostile environment for electronic equipment.
Temperatures downhole may reach excesses of 200° C. Shock and vibration along a tool string may knock circuitry out of place or damage it.
The drilling mud and other downhole fluids may also have a detrimental effect on electronic equipment downhole exposed to it.

Method used

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  • Downhole Tool with Integrated Circuit
  • Downhole Tool with Integrated Circuit
  • Downhole Tool with Integrated Circuit

Examples

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Embodiment Construction

[0030] Referring to FIG. 1, a portion of a downhole tool 100 according to the present invention is shown. The downhole tool 100 comprises a tubular body 104 that may allow the passage of drilling fluids under pressure through the downhole tool 100. The tubular body 100 has a threaded box end 103, an exterior wall 109 and a bore 110. The box end 103 may be designed to couple to a pin end 203 of another downhole tool 209 (see FIG. 6). The threaded box end 103 may be adapted to create a secure joint between two downhole tools 100, 209 (see FIG. 2).

[0031] The box end 103 of the downhole tool 100 comprises a primary mating surface 101, which in the shown embodiment is a primary shoulder. The primary mating surface 101 is intermediate the exterior wall 109 and the bore 110. The primary mating surface 101 is adapted to couple to a primary mating surface 208 in a second downhole tool 209 (see FIG. 6). The primary mating surface 101 comprises a recess 105 in which an integrated circuit 106 ...

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Abstract

A downhole tool has a tubular body with an end, an exterior wall, and a bore. A mating surface is formed intermediate the exterior wall and the bore in the end of the tubular body. The mating surface is adapted to couple to a second downhole tool and has an integrated circuit. In several embodiments, the integrated circuit is an RFID circuit in communication with a downhole network through an inductive coupler. A tool identification system has surface equipment with RFID interrogating circuitry connected to a protected integrated RFID circuit in a downhole tool string component through a downhole network. A method for identifying a tool in a downhole tool string includes transmitting signals between surface equipment and identification circuitry in the tool through the downhole network.

Description

BACKGROUND OF THE INVENTION [0001] The present invention relates to the field of downhole drilling. More specifically, it relates to downhole tools in a tool string with protected integrated circuits. [0002] Due to high costs associated with drilling for hydrocarbons and extracting them from underground formations, efficiency in drilling operations is desirable to keep overall expenses down. Electronic equipment may be useful in drilling operations to accomplish many tasks, such as providing identification information about specific downhole components to surface equipment, performing downhole measurements, collecting downhole data, actuating tools, and other tasks. [0003] Notwithstanding its utility in the drilling process, downhole has proven to be a rather hostile environment for electronic equipment. Temperatures downhole may reach excesses of 200° C. Shock and vibration along a tool string may knock circuitry out of place or damage it. A drilling mud with a high pH is often cir...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): E21B47/09
CPCE21B17/028E21B17/003E21B17/006E21B17/0283
Inventor HALLRAWLE, MICHAELJOHNSON, MONTE L.
Owner INTELLISERV INT HLDG LTD
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