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Lateral logger

A lateral logging and logging tool technology, applied in the field of logging tools, can solve the problems of slow data transmission, high power consumption of the tool, poor reliability, etc., and achieves improved measurement accuracy, improved signal-to-noise ratio, and improved stability. Effect

Inactive Publication Date: 2014-01-22
SHAANXI HI-TECH IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional induction logging tools mostly use analog separation components and interface circuits, which have the disadvantages of high power consumption, slow data transmission speed, low signal-to-noise ratio, and poor reliability

Method used

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  • Lateral logger

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Embodiment Construction

[0015] see figure 1 , a lateral logging tool includes an electronic instrument circuit short section 1, a 64-core joint 2, a preamplifier circuit short section 3, a double induction coil system 4, eight lateral electrodes 5, and a pressure balance bladder 6, which are connected in sequence. Instrument circuit subsection 1 includes modular deep and medium induction detection circuits, eight direction finding measurement and amplification circuits, digital and analog interface circuits, and power supply circuits; preamplification circuit subsection 3 includes integrated preamplification circuits and emission circuit. In order to achieve different detection depths, the double induction coil system 4 includes a transmitter and two receivers, that is, a deep induction receiver and a medium induction receiver; the transmitter has three coils, the deep induction receiver has three coils, and the medium induction receiver has three coils. The transmitter has five coils, and a suitabl...

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Abstract

A lateral logger comprises an electronic instrument circuit sub, a 64-core connector, a pre-amplifier circuit sub, a dual-induction coil system, an 8-lateral electrode, a pressure balance bag and a battery. The lateral logger has the advantages that received signals are enhanced, signal-to-noise ratio is increased, power consumption of the logger is reduced, temperature performance, sensitivity, stability and measurement accuracy of the logger are improved greatly, and the lateral logger is suitable for data measurement in detection of formation conductivity of open hole wells.

Description

technical field [0001] The invention relates to a logging instrument, in particular to a lateral logging instrument for detecting the electrical conductivity of an open-hole formation. Background technique [0002] Since the invention of electrical logging, it has been an important logging method for exploration and development of oil and gas. And it has developed rapidly, and new instruments and new methods are constantly appearing, making electrical logging an important basis for dividing oil and gas layers and calculating oil and gas reserves. Traditional induction logging tools mostly use analog separation components and interface circuits, which have the disadvantages of high power consumption, slow data transmission speed, low signal-to-noise ratio, and poor reliability. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a lateral logging tool to obtain accurate data while overcoming the shortcomings in the a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B49/00
Inventor 王耀斌
Owner SHAANXI HI-TECH IND CO LTD
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