2012
DOI: 10.3182/20120531-2-no-4020.00018
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Safe Mud Pump Management while Conditioning Mud: On the Adverse Effects of Complex Heat Transfer and Barite Sag when Establishing Circulation

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Cited by 7 publications
(3 citation statements)
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“…In the present (33)(34)(35). Taking into consideration a previous study, which investigated the mechanism of colon cancer development (34), we hypothesize that in colon cancer, regulation of the FRAT1-Wnt/β-catenin pathway occurs.…”
Section: Discussionmentioning
confidence: 99%
“…In the present (33)(34)(35). Taking into consideration a previous study, which investigated the mechanism of colon cancer development (34), we hypothesize that in colon cancer, regulation of the FRAT1-Wnt/β-catenin pathway occurs.…”
Section: Discussionmentioning
confidence: 99%
“…Because the bit depth is increasing, this means that the liquid level (compared with the vertical datum) is increasing. During the filling of the air gap, it is possible that the flow starts before the liquid level has reached the topdrive, simply because of a U-tube effect (Cayeux 2012). However, it is possible to put a pressure sensor that can be used to estimate the liquid level on the basis of the downhole pressure inside the drillstring.…”
Section: Status Of the Underreamer Arms (Point D) And Openholementioning
confidence: 99%
“…Sometimes, when filling the drillstring to remove the air gap, the density of the fluid used to fill the drillstring is different from the in-situ mud weight (simply because of a difference of temperature). This can start a premature movement of the drilling fluid (a so-called U-tube effect) because of the overbalance of the fluid column inside the drillstring compared with that in the annulus (Cayeux 2012), and as a consequence, the liquid level inside the string may be different from the expected one.…”
mentioning
confidence: 99%