Apparatus string for use in a wellbore

A technology for equipment and pipe strings, applied in the field of equipment pipe strings, can solve problems such as increasing time

Inactive Publication Date: 2009-04-01
PRAD RES & DEV LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the wire is clamped or shorted out during the loading or delivery process, the wire m...

Method used

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  • Apparatus string for use in a wellbore
  • Apparatus string for use in a wellbore
  • Apparatus string for use in a wellbore

Examples

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Embodiment Construction

[0024] It should be understood that the invention can take many forms and embodiments. In the following specification, some embodiments of the invention are described and numerous details are described to provide an understanding of the invention. However, it will be understood by those of ordinary skill that the invention may be practiced without these details and that various changes and modifications from the described embodiments are possible. As such, the following description is intended to illustrate and not to limit the invention.

[0025] As used herein, the terms "above" and "beneath", "upper" and "under", "upper" and "lower", "upward" and "downward" and other designations indicate that a given point or element is above or The following relative positional terms are used in this specification to more clearly describe some embodiments of the present invention. However, when applied to apparatus and methods for use in deviated or horizontal wells, such terms may refe...

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PUM

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Abstract

An apparatus string for use in a wellbore is disclosed comprising a plurality of activation modules having first and second ends and containing devices to be activated/initiated downhole. An apparatus string according to the present invention also comprises a plurality of initiator modules where at least initiator is operatively connected to each activation module and is addressable. Each initiator module may comprise a safety initiator which when the initiator module is addressed initiates the firing of the shaped charges in the gun module to which it is operatively connected. A wireless transmitter is provided which is operatively connected in and integral to the apparatus string for use in transmitting signals to address any initiator module in the apparatus string. An apparatus string according to the present invention may be especially useful in perforating operations.

Description

technical field [0001] The present application relates to an apparatus string for use in a wellbore, which may include, for example, a perforation string. Background technique [0002] For the purpose of improving acquisition from subterranean formations, perforating guns are typically lowered into boreholes that extend through the formations. Perforating guns typically include a plurality of gun sections, each gun section including a plurality of radially oriented shaped charges that are detonated to create perforations in the formation proximate the wellbore. These shaped charges may, for example, be placed at points on a helical spiral extending along the longitudinal axis of each gun section of the perforating gun. [0003] In a wire gun, there are two wires that run the length of the gun column. One of these metal wires is an energized or live wire connected to a positive or negative voltage, and the other wire is a ground wire. These wires connect the current and vo...

Claims

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Application Information

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IPC IPC(8): E21B17/00E21B43/11
CPCE21B43/119E21B43/11857
Inventor 米歇尔·J·伯图嘉路易斯·欧乔阿肯尼思·R·古德曼
Owner PRAD RES & DEV LTD
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