Processing

Please wait...

PATENTSCOPE will be unavailable a few hours for maintenance reason on Saturday 31.10.2020 at 7:00 AM CET
Settings

Settings

Goto Application

1. WO2016144336 - A WELLBORE MONITORING SYSTEM USING STRAIN SENSITIVE OPTICAL FIBER CABLE PACKAGE

Publication Number WO/2016/144336
Publication Date 15.09.2016
International Application No. PCT/US2015/019720
International Filing Date 10.03.2015
IPC
E21B 47/00 2012.01
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
G01V 1/40 2006.01
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
1Seismology; Seismic or acoustic prospecting or detecting
40specially adapted for well-logging
G01V 1/50 2006.01
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
1Seismology; Seismic or acoustic prospecting or detecting
40specially adapted for well-logging
44using generators and receivers in the same well
48Processing data
50Analysing data
CPC
E21B 47/06
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
47Survey of boreholes or wells
06Measuring temperature or pressure
E21B 47/101
E21B 47/123
E21B 47/135
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
47Survey of boreholes or wells
12Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
13by electromagnetic energy, e.g. radio frequency
135using light waves, e.g. infrared or ultraviolet waves
E21B 49/00
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
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
G01H 9/004
GPHYSICS
01MEASURING; TESTING
HMEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
9Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
004using fibre optic sensors
Applicants
  • HALLIBURTON ENERGY SERVICES INC. [US]/[US]
Inventors
  • XIA, Hua
  • TAWARE, Avinash V.
  • BARFOOT, David A.
Agents
  • TIDWELL, Mark
Priority Data
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) A WELLBORE MONITORING SYSTEM USING STRAIN SENSITIVE OPTICAL FIBER CABLE PACKAGE
(FR) SYSTÈME DE SURVEILLANCE DE PUITS DE FORAGE METTANT EN ŒUVRE UN BOÎTIER DE CÂBLE À FIBRE OPTIQUE SENSIBLE AUX CONTRAINTES
Abstract
(EN)
A distributed acoustic sensing cable package having a polymer composite extruded over an optical waveguide to encase the waveguide and to form a crystalline matrix layer acoustically coupled to the waveguide. The crystalline matrix includes reinforcement fibers to further enhance transmission of a cable strain to the optical waveguide. During manufacture of the cable, the polymer composite may be extruded over the optical waveguide and subsequently subjected to heat treatment to increase the crystallinity of the polymer composite and increase the elastic modulus. Both axial and radial strain fields are effectively interact with cased fiber waveguide for producing measurable phase shift signal for distributed acoustic noise detection.
(FR)
Cette invention concerne un boîtier de câble de détection acoustique répartie comprenant un composite polymère extrudé au-dessus d'un guide d'ondes optique de sorte à enfermer le guide d'ondes et à former une couche de matrice cristalline couplée acoustiquement au guide d'ondes. La matrice cristalline comprend des fibres de renforcement pour améliorer davantage la transmission d'une contrainte de câble au guide d'ondes optique. Pendant la fabrication du câble, le composite polymère peut être extrudé sur le guide d'ondes optique et soumis par la suite à un traitement thermique afin d'accroître la cristallinité du composite polymère et d'accroître le module d'élasticité. Les deux champs de contrainte axiale et radiale interagissent efficacement avec guide d'ondes à fibre tubé pour produire un signal de déphasage mesurable pour la détection acoustique répartie du bruit.
Also published as
Latest bibliographic data on file with the International Bureau