发明名称 |
Methods to estimate downhole drilling vibration amplitude from surface measurement |
摘要 |
Method to estimate severity of downhole vibration for a drill tool assembly, including: identifying a dataset comprising selected drill tool assembly parameters; selecting a reference level of downhole vibration amplitude for the drill tool assembly; identifying a surface drilling parameter and calculating a reference surface vibration attribute for the selected reference level of downhole vibration amplitude; determining a surface parameter vibration attribute derived from at least one surface measurement or observation obtained in a drilling operation, the determined surface parameter vibration attribute corresponding to the identified surface drilling parameter; and estimating a downhole vibration severity indicator by evaluating the determined surface parameter vibration attribute with respect to the identified reference surface vibration attribute. |
申请公布号 |
US8977523(B2) |
申请公布日期 |
2015.03.10 |
申请号 |
US201013386859 |
申请日期 |
2010.08.06 |
申请人 |
ExxonMobil Upstream Research Company |
发明人 |
Ertas Mehmet Deniz;Bailey Jeffrey R.;Burch Damian N.;Wang Lei;Pastusek Paul E.;Sundararaman Shankar |
分类号 |
G06F7/60;E21B45/00;E21B44/00;E21B7/28;G05B15/02 |
主分类号 |
G06F7/60 |
代理机构 |
ExxonMobil Upstream Research Company—Law Department |
代理人 |
ExxonMobil Upstream Research Company—Law Department |
主权项 |
1. A method to estimate severity of downhole vibration for a wellbore drill tool assembly, comprising the steps:
a. Identifying a dataset comprising selected drill tool assembly parameters; b. Selecting a reference level of downhole vibration amplitude for the drill tool assembly; c. Identifying a surface drilling parameter and using a computer processor to calculate a reference surface vibration attribute for the selected reference level of downhole vibration amplitude; d. Determining a surface parameter vibration attribute derived from at least one surface measurement or observation obtained in a drilling operation, the determined surface parameter vibration attribute corresponding to the identified surface drilling parameter (step c); and e. Estimating a downhole vibration severity indicator by evaluating a ratio between the determined surface parameter vibration attribute (step d) and the identified calculated reference surface vibration attribute (step c). |
地址 |
Houston TX US |