Ayesha, N and Venkatesan, R and Khan, FI, Monitoring early kick indicators at the bottom hole for blowout prevention, Proceedings of 2014 Oceans - St. John's, OCEANS 2014, 14-19 September 2014, St John's, Canada, pp. 109975-1-10. ISSN 0197-7385 (2015) [Refereed Conference Paper]
Copyright 2014 IEEE
Early detection of fluid influx (kick) from formation is crucial to minimize the blowout occurrence. Kick does not turn into blowout instantaneously. Most often, when influx occurs, it takes some time to evolve into critical blowout. So, the early identification of influx is key to avoid blowout incidents.
This paper presents the design, instrumentation, and analysis of the laboratory scale drilling rig model that has necessary features to evaluate early kick scenarios by implementing down hole monitoring techniques. The down hole monitoring technique is aimed to reduce the time taken to identify a kick by monitoring multiple kick indicators at the bottom of the wellbore. The compressed air (influx gas) is injected into the bottom of the wellbore to simulate the kick scenario. Monitoring multiple kick indicators at the down hole improves the quality of interpretation and reduces the chances of a false alarm. The down hole monitoring sensors that are used on the model include the Coriolis flow and density meter, the pressure sensor, the temperature sensor, and the conductivity sensor. The readings from the down hole sensors are evaluated to identify any deteriorating well conditions and to predict the risk of blow out. In addition to the description of the experimental setup, simulation results of the down hole flow model are also presented.
|Item Type:||Refereed Conference Paper|
|Keywords:||blow out; down hole, identification, kick, monitoring, blowout prevention, boreholes, compressed air, identification (control systems), monitoring. oil field equipment, conductivity sensors, coriolis flow, density meter, down holes, fluid influx|
|Research Group:||Engineering practice and education|
|Research Field:||Risk engineering|
|Objective Group:||Mining and extraction of energy resources|
|Objective Field:||Oil and gas extraction|
|UTAS Author:||Khan, FI (Professor Faisal Khan)|
|Year Published:||2015 (online first 2014)|
|Deposited By:||NC Maritime Engineering and Hydrodynamics|
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