Author: GOSCO Energy
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Coiled Tubing Connectors
Selecting the appropriate connector is generally dependent on the application and operator preference.Grapple connectorSetscrew/dimple connectorRoll-on connector 1.Roll-On ConnectorThe roll-on connector attaches to the internal diameter of the CT and is held in place by crimping the CT around a connector profile with a special crimping tool. However, the roll-on connector poses a significant obstruction to […]
Back Pressure Valve (BPV) Versus Two Way Check Valve (TWCV)
Type H Threaded Style BPV The Type H back pressure valve is a threaded style BPV that incorporates internal running threads, external setting threads, and an internal stinger.This style valve must be rotated in a set of mating threads until it seats.The Type H BPV may not be set with wire line because it must […]
Flowback Coiled Tubing
In a coiled tubing (CT) operation, flowback refers to the return of fluids (such as wellbore fluids, treatment fluids, or reservoir fluids) to the surface after pumping stops. If the flow rate during flowback is very low, several factors could be responsible: 1. Reservoir Pressure is Low – If the reservoir has low energy, it […]