Article ID Journal Published Year Pages File Type
5484487 Journal of Petroleum Science and Engineering 2017 18 Pages PDF
Abstract
Based on the result of this work the filter cake removing formulation dissolved more than 90% of the filter cake formed by real barite drilling fluid in a single stage within 24 h. The removal formulation consists of high pH potassium base DTPA of 20 wt% concentration, enzyme as a polymer degrading agent, and one of the following converting/catalytic agents (potassium carbonate, potassium formate, or potassium chloride). The use of converting agents increased the barite solubility from 67-95%.
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Physical Sciences and Engineering Earth and Planetary Sciences Economic Geology
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