A port placement is performed under a local or a general anesthesia. It usually takes less than one hour. A small incision is made at the planned site for the port and a pocket for the port is made. The vein is accessed and the port tubing is threaded into position and checked with fluoroscopy.
Definition of conduit. 1 : a natural or artificial channel through which something (as a fluid) is conveyed a conduit for rainwater. 2 archaic : fountain. 3 : a pipe, tube, or tile for protecting electric wires or cables.
See: annular velocity, bridge, casing centralizer, cement, cementing, crossflow, displacement, drill collar, eccentricity, flapper valve, pack off. 2. n. [Formation Evaluation]. With reference to invasion, a region between the flushed zone and the undisturbed zone containing a buildup of formation water. The annulus forms during invasion and is caused by the different mobilities of oil and water. It only occurs in the presence of both, but is unstable and will dissipate vertically or horizontally with time. The annulus has approximately the same water saturation as the flushed zone but contains formation water.