الفهرس 
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Abstract
In the recent years, ultrasonic meter (USM) has established and considered as the fastest-growing new technologies in the oil and gas fields. The ultrasonic meters
have been improved in the petroleum career because they provide substantial value to the clients by dropping the cost of doing the commercial. The main objectives of
the proposing USMs used in Alexandria City (IDKU Site Plant) are to measure gas flow rate in Gas filed which have more benefits over the orifice plate in reducing measurement uncertainty to achieve the high accuracy before export to the domestic grid. The Orifice plate problems are the uncertainty and this very high
cost in maintenance. The comparison between USM and Orifice plate via
simulation and experimental results is discussed in this thesis.
Ultrasonic meter is used in many different fields. It is used to detect objects; measure distances and gives a lot of information about oil and gas flows. The flow in pipes can be measured by ultrasonic flow meters, which measures the average velocity of flowing Material. (In this thesis, a new application by injecting a
solvent with a produced gas to resolve the gas blockage problem that caused by slugs creation in a pipeline by benefiting the USM usage, as it works with the same inner size of the pipeline, as well as getting pipe and flow information such as temperature, pressure and having accurate flow gas measurement). Ultrasonic meters (USM) have become one of the fastest growing new technologies in the natural gas arena. Their popularity has increased dramatically because they provide significant value to the customer by reducing the heavy cost of doing business, including capital and operating and maintenance costs. The
benefits of using USMs have been well documented through this thesis and
suggested. More applications than ever before are being designed today using this technology. Just like any measurement device, it must be installed and maintained properly to
ensure optimal long-term performance. The best of technologies will not provide the expected benefits if it’s not installed and maintained properly. The designer must take into consideration all aspects of the station requirements in order to
realize the potential for this technology. ……. In addition to the USM, this thesis focuses on the process automation domain. The
concept and the purpose of this part are using Distributed Control System (DCS). The simulation and modelling of the DCS which very expensive, about 2 Million dollar, and exclusive in the 6 companies only who create and istribute for the whole world (Emerson - YOKOGAWA - Honeywell- Siemens - Invensys - ABB). A new technique using DCS methodology for process control system design is presented.
A typical process control system includes a process, a process controller, a control valve, measurement instrumentation and process operator considerations in the
conceptual design of processes (or unit operation) have included investment associated with yields and production rates of desirable products, costs for utilities
and capital investment.