发明名称 |
ESTIMATING CASING WEAR DUE TO DRILL STRING RECIPROCATION |
摘要 |
Estimating casing wear during a reciprocation portion of a drilling operation may take into account the forces that cause casing wear during the up and down strokes independently. For example, during a drilling operation, a method may include reciprocating the drill string through the wellbore for a plurality of up strokes and a plurality of down strokes according to reciprocation parameters; calculating an up stroke normal force and a down stroke normal force for the casing or a section thereof; calculating up and down stroke casing wears based on the up and down stroke normal forces, respectively, using a reciprocation casing wear model; calculating a reciprocation casing wear based on the up and down stroke casing wears; and calculating a total casing wear for the casing or the section thereof based on the reciprocation casing wear using a total casing wear model. |
申请公布号 |
WO2016200395(A1) |
申请公布日期 |
2016.12.15 |
申请号 |
WO2015US35460 |
申请日期 |
2015.06.12 |
申请人 |
LANDMARK GRAPHICS CORPORATION |
发明人 |
NO LAST NAME, Aniket;GONZALES, Adolfo;SAMUEL, Robello |
分类号 |
E21B47/00;E21B12/02;E21B47/005 |
主分类号 |
E21B47/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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