Multi-parameter measurement recorder of downhole tool string

Abstract

The invention relates to a multi-parameter measurement recorder of a downhole tool string. The multi-parameter measurement recorder comprises a collection device fixed frame, a radial data acquisitiondevice, an axial data acquisition device, and a real-time data processing device. The collection device fixed frame is used for forming a passing channel and providing a connection structure for encircling the passing channel by the data acquisition devices. The radial data acquisition device is used for collecting a real-time radial width of passing through the passing channel by a measured object. The axial data acquisition device applied to a follow-up radial data acquisition device is used for collecting a real-time axial length of passing through the passing channel by the measured object. The real-time data processing device is used for forming a radial width and axial continuously changing data when the measured object passes through the passing channel continuously based on the obtained width data and length data. According to the invention, a measurement reference is established and thus the downward length and the width of each downhole part can be measured accurately basedon measurement reference when the downhole tool string passes through the passing channel, so that the flexibility of series part combination mode of the downhole tool string is improved. Meanwhile, aphenomenon of forming a measurement error by human intervention during the measurement process is avoided.

Description

technical field [0001] The invention relates to the technical field of downhole working condition parameter acquisition, in particular to a multi-parameter downhole tool string recorder. Background technique [0002] Oil production is to recover the oil in the oil layer hundreds of meters to several thousand meters underground. In the completion of the well, the oil lines are connected in series according to the depth of the oil layers to realize layered oil recovery. Each section of the oil line connects multiple pipe strings. At the same time, the oil production pump and the oil production measure tool are connected in series to form a downhole tool string. Due to the complex structure of the oil layer and geological layer, when the thickness of the oil layer is small, or the distance between the oil layers is small, the depth value of the oil production pump and the oil production measure tool of each section of the oil circuit is strictly required to accurately correspon...

AI Technical Summary

Problems solved by technology

[0003] In view of this, the embodiment of the present invention provides a downhole tool string multi-parameter recorder, which is used to solve the technical problem of low measurement accuracy of downhole tubing and equipment

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