Study on Wellbore Deposits Prevention and Removal Process for H Oilfield in Iraq

Abstract:

The crude oil of H oilfield contains wax and asphaltenes, and the formation water salinity is up to 160000-220000mg/l, so there is a tendency that the asphaltenes and scale will be deposited in the wellbore during the course of well production, which will influence the normal production greatly. It is necessary to make clear the sedimentary law and corresponding measures. The content of organic and inorganic of wellbore deposits of H oilfield is analyzed through a series of laboratory tests. On the base of the test results, integrated with comparison of conventional deposit prevention and removal technologies, chemical and mechanical methods are recommended. Moreover, formulation of the acid cleaning agent is determined and the principle and process of mechanical removal method is presented.

• Periodical: Advanced Materials Research (Volumes 1073-1076)
• Pages: 2227-2230
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1073-1076.2227
• Online since: December 2014
• Authors: Xiang Liu, Zhi Chao Qiu, Chun Zhao, Ran Yi
• Keywords: Chemical Agent, Chemical Injection, Deposit Prevention, Deposit Removal, Oil Production Wells

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