Experimental Analysis of Injection and Reservoir Brine Compatibility to Prevent Scale Formation during Various Oil and Gas Production Processes

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Motayeri, Roya | 2018

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Type of Document: M.Sc. Thesis
Language: English
Document No: 53208 (66)
University: Sharif University of Technology, International Campus, Kish Island
Department: Science and Engineering
Advisor(s): Jamshidi, Saeid
Abstract:
Scale formation is an unpleasant phenomenon that occurs when the mixed fluids are incompatible. The scales damage the reservoir, wellbore and the surface facilities. They reduce the effective fluid path and increase the pressure drop of the system; so it is necessary to study the precipitation thermodynamics of scale formation, and present a trustable method for banning the scales from precipitation. In this project, it has been tried to study the value of precipitated scale due to the mixing of two incompatible waters (Civand and Sea Water). The results of which are compared with the results of a geochemical software named PHREEQC. Then, the performance of hydro chloridric acid as a scale inhibitor has been discussed. The results of the experimental test show that the proposed inhibitor completely prevents the scale precipitation and can be used as a scale removal agent in reservoir, wellbore and surface facilities
Keywords:
Scale Effect ; Scale Formation ; Wellbore Scale ; PHREEQC Software ; Oil and Gas Prodution Chain ; Wellbore Cleanup ; Incompatible Waters

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