| 发明名称 |
Methods and systems for drilling |
| 摘要 |
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. |
| 申请公布号 |
US9470052(B2) |
申请公布日期 |
2016.10.18 |
| 申请号 |
US201313960315 |
申请日期 |
2013.08.06 |
| 申请人 |
Shell Oil Company |
发明人 |
Edbury David Alston;Guerrero Jose Victor;MacDonald Duncan Charles;Rogers James Bryon;Sitton Donald Ray;Norman Jason |
| 分类号 |
E21B21/08;E21B7/06;E21B21/01;E21B44/00;E21B44/02;E21B47/00;E21B49/00;E21B44/06 |
主分类号 |
E21B21/08 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method of assessing hole cleaning effectiveness of a drilling operation, comprising:
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; andiii) 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; further automatically controlling one or more drilling operations based on one or more assessments of hole cleaning effectiveness wherein at least one of the one or more assessments of hole cleaning effectiveness is based on the determined difference between the determined mass of rock excavated in the well and the determined mass of cuttings removed from the well; wherein automatically controlling one or more drilling operations is performed using differential pressure across a pump motor as the primary control variable. |
| 地址 |
Houston TX US |
