公开(公告)号：US20140041941A1

公开(公告)日：2014-02-13

申请号：US13960315

申请日：2013-08-06

Applicant: Shell Oil Company

Inventor： David Alston EDBURY ,  Jose Victor GUERRERO ,  Duncan Charles MACDONALD ,  James Bryon ROGERS ,  Donald Ray SITTON ,  Jason NORMAN

IPC: E21B21/08 ,  E21B44/00

CPC classification number: E21B21/08 ,  E21B7/06 ,  E21B21/01 ,  E21B37/00 ,  E21B44/00 ,  E21B44/02 ,  E21B44/06 ,  E21B47/00 ,  E21B47/0003 ,  E21B49/005

Abstract: A method of assessing hole cleaning effectiveness of drilling comprises a) determining a mass of cuttings removed from a well wherein determining the mass of cuttings removed from a well comprises: i) measuring a total mass of fluid entering a well; ii) measuring a total mass of fluid exiting the well; and iii) determining a difference between the total mass of fluid exiting the well and total mass of fluid entering the well; b) determining a mass of rock excavated in the well; and c) determining a mass of cuttings remaining in the well wherein determining the mass of cuttings remaining in the well comprises: determining a difference between the determined mass of rock excavated in the well and the determined mass of cuttings removed from the well.

Abstract translation: 评估钻孔清洁效果的方法包括：a）确定从井中移除的切屑的质量，其中确定从井中移出的切屑的质量包括：i）测量进入井的流体的总质量; ii）测量离开井的流体的总质量; 以及iii）确定离开井的流体的总质量和进入井的流体的总质量之间的差; b）确定井中挖出的岩石质量; 以及c）确定在井中残留的切屑的质量，其中确定井中残留的切屑的质量包括：确定所确定的在井中挖掘的岩石质量与从井中移除的确定的切屑质量之间的差。