DEVICE FOR FORMATIONS SEGREGATION

oil producing industry; devices for segregation of formations. SUBSTANCE: device has a body consisting of two concentric pipes forming a circular channel with a packer unit installed on its ends. At least one of packer units has flexible sealing members. At least one packer unit is used in the form...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	RAKHIMKULOV R.SH, GIBADULLIN N.Z, ASFANDIJAROV R.T, OVTSYN I.O, ALEKSEEV V.A, GILJAZOV R.M, KLJAVIN R.M
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:	oil producing industry; devices for segregation of formations. SUBSTANCE: device has a body consisting of two concentric pipes forming a circular channel with a packer unit installed on its ends. At least one of packer units has flexible sealing members. At least one packer unit is used in the form of a filtering hose provided with split rings. Reinforcing members are located inside the filtering hose. Packer units are installed on the device body with possible change of a distance between them. EFFECT: improved sealing of annular space in wells with complicated wellbores. 3 cl, 2 dwg