发明名称 Method of in-situ testing of a drilling fluid.
摘要 <p>The method comprises during a drilling operation wherein the drilling fluid is set moving and the drill string is stationary, monitoring the pressure of the drilling fluid pumped into the drill string depending on the volume of liquid pumped in the drill string and determining, from the pressure curve, a physical property linked to the thixotropy of the drilling fluid. An advantage of the invention is that the highest point of the pressure curve indicating the start of the fluid flow into the well is easily visible, and its maximum value can be measured to find the gel strength specific value. &lt;IMAGE&gt;</p>
申请公布号 EP0435363(A1) 申请公布日期 1991.07.03
申请号 EP19900203201 申请日期 1990.12.05
申请人 SERVICES PETROLIERS SCHLUMBERGER, (FORMERLY SOCIETE DE PROSPECTION ELECTRIQUE SCHLUMBERGER) 发明人 BURGESS, TREVOR MICHAEL
分类号 E21B21/08 主分类号 E21B21/08
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