Methods and apparatus for improving performance of gravel packing systems

Methods and apparatus for completing wells and gravel packing an interval of a wellbore use a perforated shroud (20) having an internal sand screen (21) disposed therein. Particulate material is injected into the annuli between the sand screen and the perforated shroud and the perforated shroud and...

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Bibliographische Detailangaben
Hauptverfasser:	JIMMIE D. WEAVER, PHILIP D. NGUYEN, MIKE W. SANDERS
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Beschreibung
Zusammenfassung:	Methods and apparatus for completing wells and gravel packing an interval of a wellbore use a perforated shroud (20) having an internal sand screen (21) disposed therein. Particulate material is injected into the annuli between the sand screen and the perforated shroud and the perforated shroud and the wellbore to thereby form packs of particulate material therein to prevent the migration of fines and sand with produced fluids. The perforated shroud has a flow-controlling means for restricting fluid movement between the casing/shroud and shroud/screen annuli during gravel packing.