US Patent 8167051 Selective agitation
Patent 8167051 was granted and assigned to National Oilwell Varco on May, 2012 by the United States Patent and Trademark Office.
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A fluid actuated downhole tool for inducing movement of a downhole apparatus is described. The tool comprises a body for coupling to downhole apparatus, the body being adapted to accommodate now of fluid therethrough and including a flow-modifying arrangement for modifying the flow of fluid through the body. The flow-modifying arrangement is configurable in an inactive configuration and in an active configuration. The fluid activated tool is selectively operated from the surface by varying an operating condition which causes the flow through the tool to either bypass or flow through the flow-modifying arrangement to induce movement of the downhole apparatus.
US Patent 08167051 Selective agitation US Patent 8167051 Selective agitation
US Patent 08167051 Selective agitation
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