ESTIMATING CASING WEAR DUE TO DRILL STRING RECIPROCATION

ESTIMATING CASING WEAR DUE TO DRILL STRING RECIPROCATION

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...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: SAMUEL Robello, GONZALES Adolfo, (NO LAST NAME) Aniket
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
ELECTRIC DIGITAL DATA PROCESSING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
PHYSICS
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Beschreibung
Zusammenfassung: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.