Device for remotely operating and assembly comprising a bean/needle system, and use thereof in a drill string
AssigneeInstitut Francias du Petrole
InventorsBenoit A. du Chaffaut, Jean Boulet
Life of this patent
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Abstract
A device for remotely operating equipment through a variation in the flow of a fluid includes a coupling unit connecting the device and the equipment to be operated, an assembly of two elements cooperating with one another to control an opening value of a channel through which the fluid flows and a control assembly for adjusting the opening value in order to have it take on one or the other of two particular values.
Claims11
A device for remotely operating equipment in a well through variation in a flow of a fluid which comprises coupling means for coupling the device to the equipment to be operated, an assembly comprising at least two elements cooperating with one another to control an opening value of a channel through which said fluid flows and a control assembly for adjusting said opening value to have said value take on one or the other of two particular opening values, wherein the remote operation of the equipment is carried out for predetermined flow conditions when said control assembly is set to one of the two particular opening values of said elements and wherein for the same flow conditions, the remote operation is not obtained when said control assembly is set to the other opening value of said at least two elements.
Dependencies are inferred from the claim text.