Dual coiled tubing head
OwnerDean SPENCE, Leigh MCDIARMIDinventors
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OwnerDean SPENCE, Leigh MCDIARMIDinventors
Estimating the term…
A dual coiled tubing head has an outer coiled tubing connector, an inner coiled tubing connector, a central housing, a first piston and a bottom housing. The outer coiled tubing connector and inner coil connect to the outer coil and inner coil of dual coiled tubing. The inner coiled tubing connector fits within the outer coiled tubing connector such that a passage is created between an outer surface of the inner coiled tubing connector and an inner surface of the outer coiled tubing connector to allow for the passage of fluid through the outer coiled tubing connector. A central housing is connected to the outer coiled tubing connector and inner coiled tubing connector. The central housing has a central passage, at least one peripheral downhole passage and at least one outlet. The peripheral downhole passages are in fluid communication with the outer coiled tubing connector. A piston is housed within the central passage of the central housing. The piston has an inlet end, a sealed bottom end, at least one orifice and a hollow interior. The inlet end is in fluid communication with the inner coiled tubing connector and the hollow interior. The hollow interior houses a one-way valve that permits downward flow. The orifice is in fluid communication with the outlets of the central housing. The bottom housing connects to the central housing. The bottom housing has a central passage, a bottom end and a top end. The central passage is in fluid communication with the peripheral downhole passages and houses a one-way valve for permitting downhole flow of fluid from the exterior coiled tubing connector.
A dual coiled tubing head, comprising:
A dual coiled tubing head, comprising:
Dependencies are inferred from the claim text.