Seismic cable handling system and method
First Claim
1. A system for handling seismic cable having sensor stations thereon, the seismic cable positionable about a seismic field for measuring seismic parameters of a subsurface structure, the system comprising:
- a mobile unit positionable about the seismic field, the mobile unit having a platform;
a reel supportable on the platform, the seismic cable disposable about the reel; and
a winch assembly carried by the mobile unit, the winch assembly comprising a plurality of cable guides, at least one of the plurality of cable guides having an adjustable passageway for aligning and guiding the seismic cable and a sensor stations passing therethrough;
wherein the plurality of cable guides comprise at least one accumulator guide sheave, and the at least one accumulator guide sheave comprises a sheave wheel and a sheave guide each having guide channels thereon for aligning the cable as it passes therebetween, wherein a body of the sensor station passes along the guide channels and wherein the sheave guide is curved and outwardly angled to slidingly receive a spike extending from the body of the sensor station to assist in positioning the sensor station as it passes.
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Accused Products
Abstract
A system and method for handling seismic cable having sensor stations thereon is provided. The seismic cable is positionable about the seismic field for measuring seismic parameters of a subsurface structure. The system includes a mobile unit, a reel and a winch assembly. The mobile unit is positionable about the seismic field, and has a platform. The reel is supportable on the platform with the seismic cable disposable about the reel. The winch assembly is carried by the mobile unit and includes a plurality of cable guides. At least one of the cable guides has a passageway with an adjustable dimension for aligning and guiding the seismic cable and the sensor stations passing therethrough.
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Citations
24 Claims
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1. A system for handling seismic cable having sensor stations thereon, the seismic cable positionable about a seismic field for measuring seismic parameters of a subsurface structure, the system comprising:
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a mobile unit positionable about the seismic field, the mobile unit having a platform; a reel supportable on the platform, the seismic cable disposable about the reel; and a winch assembly carried by the mobile unit, the winch assembly comprising a plurality of cable guides, at least one of the plurality of cable guides having an adjustable passageway for aligning and guiding the seismic cable and a sensor stations passing therethrough; wherein the plurality of cable guides comprise at least one accumulator guide sheave, and the at least one accumulator guide sheave comprises a sheave wheel and a sheave guide each having guide channels thereon for aligning the cable as it passes therebetween, wherein a body of the sensor station passes along the guide channels and wherein the sheave guide is curved and outwardly angled to slidingly receive a spike extending from the body of the sensor station to assist in positioning the sensor station as it passes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for handling seismic cable about a seismic field, the seismic cable having sensor stations thereon, the method comprising:
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providing a system the system comprising;
a mobile unit positionable about the seismic field, the mobile unit having a platform;
a reel supportable on the platform, the seismic cable disposable about the reel; and
a winch assembly carried by the mobile unit, the winch assembly comprising a plurality of cable guides, at least one of the plurality of cable guides having an adjustable passageway for aligning and guiding the seismic cable and a sensor station passing therethrough;wherein the plurality of cable guides comprise at least one accumulator guide sheave, and the at least one accumulator guide sheave comprises a sheave wheel and a sheave guide each having guide channels thereon for aligning the cable as it passes therebetween, wherein a body of the sensor station passes along the guide channels and wherein the sheave guide is curved and outwardly angled to slidingly receive a spike extending from the body of the sensor station to assist in positioning the sensor station as it passes; positioning the mobile unit about the seismic field; supporting the reel on the platform; and passing the seismic cable and the sensor stations through the plurality of cable guides in an aligned and guided position. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification