Backup power supply circuit of logging-while-drilling instrument

A technology of backup power supply and drilling equipment, which is applied in the direction of circuit devices, emergency power supply arrangements, electrical components, etc., can solve disadvantages and other problems, and achieve the effect of strong practicability, simple structure, and few components

Inactive Publication Date: 2012-11-07
SHANGHAI GASOLINEEUM & CHEM EQUIP +2
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is very unfavorable to the MWD / LWD construction itself

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Backup power supply circuit of logging-while-drilling instrument
  • Backup power supply circuit of logging-while-drilling instrument

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The specific embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0025] Such as figure 1 As shown, the present invention describes a backup power circuit for drilling tools. The backup power supply circuit includes a voltage stabilizing circuit 1 , a trigger circuit 2 , a switch circuit 3 and a control circuit 4 .

[0026] The input terminal circuit of the voltage stabilizing circuit 1 is connected to the power supply RAW-DC, which is the power supply after the generator output of the instrument while drilling has been rectified and stabilized by the front end.

[0027] The input end of the voltage stabilizing circuit 1 is also connected to the trigger circuit 2 . The trigger circuit 2 includes a series resistor R1 with a resistance value of 30K ohms and a Schmitt inverter U1, and a capacitor C1 with a capacitance value of 0.1 microfarads and a marked capacitor are connected in parallel between the resistor R1 ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a backup power supply circuit of a logging-while-drilling instrument. The circuit comprises a voltage stabilizing circuit, a trigger circuit, a switch circuit and a control circuit, wherein the input end of the voltage stabilizing circuit is electrically connected with a power supply and the trigger circuit, and the output end of the voltage stabilizing circuit is respectively electrically connected with the switch circuit and the control circuit; the control circuit is electrically connected with the switch circuit to form a loop; and the output end of the trigger circuit is electrically connected with the control circuit. The backup power supply circuit can provide the logging-while-drilling instrument with power in finite time, and ensure that the logging-while-drilling instrument can perfectly store monitoring data or control parameters without losing data due to sudden power failure. The backup power supply circuit has few elements and high practicability, and is simple in structure.

Description

technical field [0001] The invention relates to a power supply device for drilling equipment, in particular to a backup power supply circuit for measuring-while-drilling or logging-while-drilling instruments when the pump stops working. Background technique [0002] At present, in the measurement-while-drilling or logging-while-drilling instruments designed with a generator, the mud drives the rotor of the instrument generator to rotate, converts mechanical energy into electrical energy, and supplies power to the instrument. This instrument saves a large number of high-temperature lithium batteries, which not only reduces environmental pollution, but also avoids explosion accidents caused by incorrect use of batteries. [0003] Directional drilling is a very complex field construction operation, which is characterized by high investment and high risk. Therefore, it is necessary to have measurement-while-drilling or logging-while-drilling instruments to go downhole together w...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): H02J9/00
Inventor 毕东杰王敏吴大囡
Owner SHANGHAI GASOLINEEUM & CHEM EQUIP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap