الفهرس يوجد فقط 14 صفحة متاحة للعرض العام
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المستخلص
Gas kicks represent the most dangerous situation that can occur during drilling a well, since it can easily develop into a blowout. Every well spudded today is a potential ”blowout”. This research presents an integrated model for gas kicks control during drilling of deviated wells. The developed model could be used to control vertical, directional, and horizontal wells. If vertical kill sheet is used in directional or horizontal wells, it may lead to excessive wellbore pressures and complicate the situation. This includes over-pressuring the formations which may results in loss of circulation or underground blowouts. The directional kill sheet is an alternative, however, containing more calculations. The model of Kumar and Sarma is another alternative, which includes too many calculations. This research presents two alternative models which will simplify kick control calculations. The integrated model (INTG_model) with one derived equation is valid to vertical, directional, and horizontal wells. An approximated model(TVD_model) was also developed and checked as a substitute and simple solution. Moreover, a graphical solution will present a quick, reliable, and approximated approach. The developed models can be used to study the factors affecting gas kicks control operations. These factors are: hole angle, well profile, drill string configuration, kill rate, and build up rate. Validity of the models was checked by comparing with other models and published data. It was concluded that the integrated model could be used accurately in all gas kick control situations, and the approximated model could be used instead of vertical kill sheet in deviated wells for more accuracy.