Erratum to: Production of Superlight Saraline Drill-In Fluid
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The name of the first author should be Badrul Mohamed Jan Muhammad.
In the title and throughout the article “drill-in fluid” should be replaced by “completion fluid.”
In the text of the paper “drilling” should be replaced by “perforating,” and “pressure differential” should be replaced by “underbalance.”
The second to the last paragraph on page 403 should read:
The results of determining the characteristics of fluids with different Saraline:GB ratios containing homogenizing and stabilizing agents are reported in Table 2. Addition of a homogenizing agent in the amount of 1–5 wt.% fluid (see Fig. 2a) with a Saraline:GB ratio of 75:25 reduces the viscosity of the mixture. This is because montmorillonite is the basic component (of the order of 90%) of the homogenizing agent, and in reacting with the glass bubbles, causes agglomeration of the mixture [8, 9]. The density of the mixture containing this agent increased, which decreased the underbalance in the wellbore. However, the stability of the mixture is very low (less than 1 day). A stabilizing agent must be added to obtain a stable fluid. Figure 2b shows the stable super lightweight completion fluid with homogenizing and stabilizing agents.