Abstract: A dual coiled tubing head has an outer coiled tubing connector, an inner coiled tubing connector, a central housing and a bottom housing. The inner coiled tubing connector fits within the outer coiled tubing connector such that a passage is created between the inner coiled tubing connector and 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 and inner coiled tubing connectors. The central housing has a central passage, a peripheral downhole passage and an outlet. The peripheral downhole passages are in fluid communication with the outer coiled tubing connector. The bottom housing connects to the central housing. The bottom housing has a central passage. The central passage is in fluid communication with the peripheral downhole passages for permitting downhole flow of fluid from the exterior coiled tubing connector.

Abstract: 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.