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Oil gas well assembly and method for transmitting signal in oil gas well assembly

A technology for oil and gas wells and components, applied in the installation of electrical components, cable accessories, cables, etc., can solve problems such as time delay

Inactive Publication Date: 2013-07-17
PRAD RES & DEV LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This results in an undesired delay in the time to complete the entire job

Method used

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  • Oil gas well assembly and method for transmitting signal in oil gas well assembly
  • Oil gas well assembly and method for transmitting signal in oil gas well assembly
  • Oil gas well assembly and method for transmitting signal in oil gas well assembly

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Embodiment Construction

[0021] As shown in Figures 1 to 8, embodiments of the present invention generally relate to cable heads for electrical and / or optical data transmission, and for delivering electrical and / or optical energy via wired cables within an oil well to, for example, measuring The cable head of the oil well tool of the well tool. A cable head is a device that connects a logging tool to a wired cable such that the data transmission and power lines contained therein are shielded from conductive fluids such as certain drilling muds, and / or other electromagnetic sources in or around the well. interference or induced currents. [Note: The design techniques described here can be used not only for wireline applications, but also for wireline applications for coiled tubing or logging applications for drillpipe other devices associated with the device. ]

[0022] As noted above, traditionally, the power and data transmission lines between the logging tool and the wireline (thus the transmissio...

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Abstract

The invention provides an oil and gas well component, which comprises a wired cable with at least one optical fiber, an underground tool with at least one optical fiber, and a cable head with a first end being connected with the wired cable and a second end being connected with the underground tool. The cable head further comprises at least one optical fiber which is used for data transmission between the optical fiber of the underground tool and the optical fiber of the wired cable.

Description

technical field [0001] The present invention generally relates to an electro-optic wireline cable head for transmitting data and power between a wireline cable in an oil well and a wireline logging tool, and more particularly, to a cable head comprising at least one single-mode or Multi-mode optical fiber, the single-mode or multi-mode optical fiber is used to transmit data and / or light intensity between a downhole logging tool and a surface data acquisition system by wire cable. Background technique [0002] Wireline logging operations are performed in the wellbore to measure one or more physical properties of the formation with respect to depth and / or time in or around the wellbore. The logging operation is typically performed by connecting an array of logging tools to a wireline and lowering the logging tools into the well and adjacent to a region of interest in the well. Once the logging tool is within the region of interest, it begins to measure physical properties of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02G9/02H02G15/00H02G15/08G02B6/36G02B6/44
Inventor 乌拉·卡里姆蒙太·W·莫里森丹尼尔·霍根
Owner PRAD RES & DEV LTD