Coreflood Investigation on the Polyacrylamide Polymer Performance for Polluted co-Water Reducing in Oil Exploitation Facilities

Publish Year: 1387
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:

CEE02_181

تاریخ نمایه سازی: 17 مهر 1386

Abstract:

Co-water production from crude oil reservoirs is one of the most serious problems in the oil industry and environment engineering. Varieties of solutions are offered to control or at least reduce the unwanted produced water as a major hazard for ecosystems. Water soluble polymers with a suitable crosslinker have been successfully used to reduce water production in the field. This research was conducted to experimentally evaluate the effectiveness of Partially Hydrolysis Polyacrylamide (PHPA)/Chromium (III) gel polymer used as sealants to shut-off water production in one of the Iranian oil reservoir conditions. In this research, coreflood experiments were performed to simulate reservoir conditions for the evaluation of effectiveness of gel polymer for reducing water cut. Specifically, this work details: the physical laboratory model and test conditions used for coreflood experiment, experimental procedure for coreflood studies, effect of gel polymer on permeability reduction, and effect of various cycles of oil and water injection on the core permeability after gel placement. The tests conducted showed that PHPA/Cr (III) gel polymer can reduce permeability to water more than oil. Therefore, Water cut was decreased using polyacrylamide gel polymer as water shut-off in the coreflood experiment.