Oil wells with an oscillating production rate have a lower production compared to oil wells producing at a constant rate. This study looks at instability caused by the casing-heading phenomenon. Control is applied to achieve stable production rate. Two realistic gas lifted systems for oil and gas production are investigated, using the multiphase flow simulator OLGA2000. Different control struct...

Diesel and biodiesel spray combustion in a high temperature and high pressure environment was investigated in a constant volume combustion chamber. The effects of ambient gas temperature and ambient oxygen concentration on the combustion process were studied. The ambient temperatures varied from 800 K to 1200K, while the ambient oxygen concentrations varied from 21% to 9%. The results indicate ...

An Intelligent Supervision Scheme for the Industrial Production is presented in this work. Such scheme is tested for gas lift (GL) oil wells. The proposal is based on the possible production assessment, the process variables (specifically, the bottom-well pressures), and the operational scenarios detection for the process (in the case of study, as an oil producing well), with the objective of o...

— Gas-lifted wells often present unstable behaviors that cannot be described by hydrostatic laws. In this thesis, we aim at analyzing the well dynamics, especially when its production is irregular. We end up by designing control solutions. We begin with a brief description of the gas-lift activation technique. The negative impact of instabilities on oil production is underlined. Two main mechan...

This paper presents investigations of two special cases of dynamic valve analysis. These special cases arose in the development of a new type of gas field reciprocating compressor. These special cases were for a moving frame of reference (since the discharge valves were integral with the piston) , and for independent mass damping {sealing/damping elements are modelled separately instead of as "...

The MRA platform is one of the offshore platforms located in north Java Sea. has 4 production wells, namely MRA-2ST, MRA-4ST, MRA-5, and MRA-6 wells. wells are produced using an artificial lift form a gas lift. limited at Platform 3.1 MMSCFD makes not optimal because experiencing insufficient Optimization injection obtained by redistribution for each. results analysis this study indicate that o...

As worldwide energy demand continues to grow, oil and gas fields have spent hundreds of billions dollars build the substructures smart fields. Management requires integrating knowledge methods in order automatically autonomously handle a great frequency real-time information streams gathered from those wells. Furthermore, businesses movement towards enhancing everyday production skills meet glo...