Electric control toe end fracturing sliding sleeve

The invention discloses an electric control toe end fracturing sliding sleeve, which belongs to the technical field of oil and gas drilling and production equipment, and comprises two joints, an inner cylinder, an outer cylinder, a sliding sleeve, a piston body, a support sieve plate, a water absorp...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: LIU WEIGANG, LIN YONGXIANG, ZHANG SHIFENG, YANG JIUJIAN, GAO BIN
Format: Patent
Sprache:chi ; eng
Schlagworte:
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Beschreibung
Zusammenfassung:The invention discloses an electric control toe end fracturing sliding sleeve, which belongs to the technical field of oil and gas drilling and production equipment, and comprises two joints, an inner cylinder, an outer cylinder, a sliding sleeve, a piston body, a support sieve plate, a water absorption expansion material cavity, an explosive cavity, a first isolating membrane, an electronic ignition device and a trigger mechanism, the sliding sleeve is located in an annular cavity between the inner cylinder and the outer cylinder and used for blocking communication of the sand blasting holes in the inner cylinder and the outer cylinder, and the first isolating membrane is used for separating the water absorption expansion material in the water absorption expansion material cavity from water. An explosive substance explodes to push a piston body to move, a first isolating membrane is damaged after the piston moves, so that a water absorption expansion material absorbs water to expand after making contact with