In the well placement problems, the purpose is to drill wells at optimal locations so that more oil and gas can be extracted, while in well control problems, the well parameters such as producer or injector flow rates or bottom hole pressures (BHPs) are optimized.
In an economical plan the location of injectors and flow rate of each one should be determined precisely, and it should be noted that the best plan is not necessarily the one with the highest injection rate.
It is shown that injector deposits will reduce injector fuel flow rates, and lead to changes in spray characteristics.
A power injector (Medrad, Indianola, Pa) with an injection flow rate of 2 mL/s was used.
A power injector (Medrad, Indianola, PA, USA) with an injection flow rate of 2 mL/s was used.
Contrast-enhanced images in the arterial phase are obtained during bolus intravenous injection of 90 130 ml of iodinated high-concentration non-ionic contrast medium, administrated with an automated injector at a flow rate of 3 4 ml/s through an antecubital vein.
An electron beam tomography of the region of interest was performed by using an intravenous nonionic iodine-containing contrast medium (Ultravist 300, Nycomed, Germany) that was applied with an injector at a flow rate of 5 mL/min.
Iodinated contrast medium, with a concentration of 350 mg/ml, was injected using a power injector at a flow rate of 3 ml/s and a dose of 80 130 ml, depending on body weight, followed by 40 ml of saline at the same flow rate.
In addition, we will also revisit key components of intravenous contrast delivery including, but not limited to power injector, intravenous cannula size, flow rate, and access vein size.
It is important to identify this before the injection is initiated as a mismatch can lead to either power injector induced reduction in flow rate of the injection due to peak pressure being reached (Fig. 3a), leak at the level of the hub (Fig. 3b) with abrupt cessation of flow, or contrast medium extravasation.
