G - Physics – 01 – V
Patent
G - Physics
01
V
G01V 11/00 (2006.01) E21B 17/10 (2006.01) E21B 23/04 (2006.01) E21B 47/01 (2006.01) G01V 1/52 (2006.01)
Patent
CA 2322844
A clamped receiver array using coiled tubing conveyed packer elements is disclosed and described. The receiver array is adapted to be received within a borehole and is therefore particularly useful for borehole seismology. The receiver array has a plurality of receivers connected together by a signal cable. The receivers include sensors which can be 3-component geophones. The apparatus is further provided with a fluid conduit running essentially parallel to the signal cable, the fluid conduit having expansible sections located adjacent to the receivers. The expansible sections expand in response to an increase of fluid pressure within the fluid conduit, contacting the associated receiver and thereby pushing the receiver into a coupled or clamped contact with the casing in the wellbore. The expansible sections have a resilient rubber outer sleeve which fits over a structural tensile strength element which is configured to conduct fluid with the fluid conduit while also providing mechanical strength for the apparatus to be deployed within a wellbore.
L'invention porte sur un chapelet de capteurs bloqués (100) à l'aide d'éléments de bourrage disposés le long d'un tube bobiné. Le chapelet de capteurs (100), conçu pour être plongé dans un puits (4) et servant en particulier en sismologie, comporte plusieurs capteurs (20), par exemple des géophones à 3 composants, reliés ensemble par un câble de transmission (30) de signaux. Le système comporte en outre un tube rempli d'un fluide (40), sensiblement parallèle au câble de transmission (30), et présentant des sections dilatables (50) situées au niveau des différents capteurs (20). Lesdites sections, se dilatant sous l'effet d'un accroissement de la pression du liquide remplissant le tube (40), entrent en contact avec les capteurs associés (20) qui sont ainsi bloqués contre le tubage du puits (5).
Edwards Antony C.
Paulsson Geophysical Services Inc.
Seismic Reservoir 2020 Ltd.
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