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1. WO2019060157 - DEVICES AND RELATED METHODS FOR ESTIMATING ACCUMULATED THERMAL DAMAGE OF DOWNHOLE COMPONENTS

Publication Number WO/2019/060157
Publication Date 28.03.2019
International Application No. PCT/US2018/050245
International Filing Date 10.09.2018
IPC
E21B 49/00 2006.01
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
49Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
E21B 47/06 2006.01
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
47Survey of boreholes or wells
06Measuring temperature or pressure
CPC
G01K 3/04
GPHYSICS
01MEASURING; TESTING
KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
3Thermometers giving results other than momentary value of temperature
02giving means values; giving integrated values
04in respect of time
G01K 7/16
GPHYSICS
01MEASURING; TESTING
KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
7Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat
16using resistive elements
G01K 7/24
GPHYSICS
01MEASURING; TESTING
KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
7Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat
16using resistive elements
22the element being a non-linear resistance, e.g. thermistor
24in a specially-adapted circuit, e.g. bridge circuit
G01N 25/72
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
25Investigating or analyzing materials by the use of thermal means
72Investigating presence of flaws
G01V 9/005
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS
9Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00
005by thermal methods, e.g. after generation of heat by chemical reactions
Applicants
  • BAKER HUGHES, A GE COMPANY, LLC [US]/[US]
Inventors
  • DIFOGGIO, Rocco
Agents
  • CARSON, Matt W.
Priority Data
15/709,18719.09.2017US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) DEVICES AND RELATED METHODS FOR ESTIMATING ACCUMULATED THERMAL DAMAGE OF DOWNHOLE COMPONENTS
(FR) DISPOSITIFS ET PROCÉDÉS ASSOCIÉS POUR ESTIMER UNE DÉTÉRIORATION THERMIQUE ACCUMULÉE DE COMPOSANTS DE FOND DE TROU
Abstract
(EN)
A thermal aging estimator for use in a borehole having an ambient temperature of at least 200° F. The estimator may include a thermal aging element positioned adjacent to a heat-sensitive component while in the ambient temperature of at least 200° F. The thermal aging element has a permanent change in an electrical property in response to a thermal exposure, which correlates to cumulative thermal damage from the thermal exposure. The change estimating circuit applies an electrical signal to the thermal aging element.
(FR)
L'invention concerne un estimateur de vieillissement thermique destiné à l'utilisation dans un trou de forage ayant une température ambiante d'au moins 200 °F, lequel estimateur peut comprendre un élément de vieillissement thermique positionné de manière adjacente à un composant sensible à la chaleur à la température ambiante d'au moins 200 °F. L'élément de vieillissement thermique a un changement permanent d'une propriété électrique en réponse à une exposition thermique, celui-ci étant corrélé à une détérioration thermique cumulée à partir de l'exposition thermique. Le circuit d'estimation de changement applique un signal électrique à l'élément de vieillissement thermique.
Also published as
JP2020513601
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