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Coiled tubing cable depth metering calibration method and device for fireflood well

A technology of calibration device and coiled tubing, which is used in earth-moving drilling, wellbore/well components, measurement, etc., can solve the problems of poor calibration accuracy and labor-intensive, so as to improve work efficiency, reduce labor intensity, and improve depth measurement accuracy. Effect

Pending Publication Date: 2020-12-11
PETROCHINA CO LTD
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of manpower consumption and poor calibration accuracy existing in the current manual calibration process of coiled tubing and cable depth gauges, an embodiment of the present invention provides a method for calibrating coiled tubing and cable depth gauges for fire flooding wells. The method includes:

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  • Coiled tubing cable depth metering calibration method and device for fireflood well
  • Coiled tubing cable depth metering calibration method and device for fireflood well
  • Coiled tubing cable depth metering calibration method and device for fireflood well

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Embodiment Construction

[0036] Embodiments of the present invention provide a coiled tubing cable depth calibration method and device for fire flooding wells.

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0038] Such as figure 1 Shown is a flow chart of a coiled tubing cable depth calibration method for fire flooding wells according to an embodiment of the present invention. The method shown in the figure includes:

[0039] Step S1, obtaining preset parameters and counting signals;

[0040] Step S2, determine the real-time end de...

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Abstract

The invention provides a coiled tubing cable depth metering calibration method and device for a fireflood well. The coiled tubing cable depth metering calibration method comprises the steps that a preset parameter and a counting signal are obtained; a real-time tail end depth is determined according to the counting signal; and the real-time tail end depth is calibrated according to the preset parameter and the acquired magnetic signals. According to the coiled tubing cable depth metering calibration method, the depth can be automatically calibrated when a coiled tubing cable is pulled out, theworking efficiency and the depth metering precision are improved, the labor intensity of calibration personnel in the construction process is reduced, manual counting errors are prevented, accumulated errors are eliminated, and more accurate depth metering data are provided for site construction.

Description

technical field [0001] The invention relates to the technical field of oil field fire drive electric ignition, in particular to a coiled tubing cable depth calibration method and device for fire drive wells. Background technique [0002] Roller depth gauges are currently used in the depth measurement process of mobile electric igniters. Due to the slippage and loss of rotation between the coiled tubing cable and the rollers, there are errors in depth measurement. The outer tube of the coiled tubing cable is welded by several fixed-length steel pipes, and the distance between two adjacent welds is equal. In the actual depth calculation process, the outer tube welds of the coiled tubing cable are usually recorded manually. Calibrate the roller depth gauge to ensure the accuracy of the depth gauge. Therefore, the manual calibration process consumes too much labor intensity, and there are problems of human counting errors and accumulated errors, which make the accuracy of on-si...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/04
CPCE21B47/04
Inventor 赵超杨显志李树全王健骁李广富景士锟袁天瑜孙光雄刘京松罗恩勇许丹赵志辉崔洪志贾财华朱磊
Owner PETROCHINA CO LTD
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