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Casing for geological and geophysical surveys
Casing for geological and geophysical surveys
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机译:地质和地球物理勘测套管
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摘要
Geological and geophysical casing apparatus comprises a unit (1) adapted to be attached to a large number of similar units (1) to form an apparatus to permit the taking of geological and geophysical readings and samples. The apparatus comprises a tubular casing (4) having grooves formed on its interior surface and a coupler (9) adapted to fit on the casing (4). Alignment means are formed on the casing (4) and the coupler (9) to co-operate to ensure alignment of the grooves in the casing with the grooves in an adjacent casing in the apparatus. Expandable bags (7) may be attached to the exterior of the casing (4) to help provide support and hydraulic seals between the casing and the surrounding materials. IMAGE
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