DEVICE FOR CONTROLLED PLACING OF CEMENT BRIDGING PLUGS IN WELLS Russian patent published in 1995 - IPC

Abstract RU 2044864 C1

FIELD: isolating operations in wells. SUBSTANCE: device for controlled placing of cement bridging plugs in wells includes hollow cylindrical body, supporting member in form of knives on shear members is suspended plug. It has seat in upper part and side washing ports. Body has through longitudinal grooves opposite to knives. Knives have supporting heads in form of segments for inner surface of case and outer body grooves. Knives are located in longitudinal slotted openings of body. Besides, body lower part has side washing ports opposite to similar openings of suspended plug. EFFECT: higher quality of placing cement bridging plugs in wells. 2 cl, 2 dwg

Similar patents RU2044864C1

Title	Year	Author	Number
COUPLING FOR TWO-STAGE CEMENTING OF CASINGS	0	Serezhnikov Vladimir Vladimirovich Koval Aleksandr Fedorovich Shevchenko Konstantin Arnoldovich Melnichuk Anatolij Nikolaevich Babak Vadim Konstantinovich Kurtov Veniamin Dmitrievich	SU1059136A1
DEVICE FOR ASSEMBLING CASING BOTTOM	1991	Kurtov Veniamin Dmitrievich	RU2014428C1
DEVICE FOR PLACING CEMENT PLUG IN WELL	2010	Akhmadishin Farit Foatovich Timirov Al'Mir Sakheevich Faskhutdinov Rashid Shavkatovich Jagafarov Al'Bert Salavatovich Bagnjuk Sergej Leonidovich	RU2435021C1
DEVICE FOR WELL CEMENT BRIDGING	2013	Akhmadishin Farit Foatovich Kagarmanov Il'Dus Il'Gizovich Timirov Al'Mir Sakheevich Jagafarov Al'Bert Salavatovich Ilalov Rustam Khisamovich	RU2526044C1
DEVICE FOR RUNNING IN AND CEMENTING FLUSH CASING STRINGS	0	Serezhnikov Vladimir Vladimirovich Nikitin Evgenij Alekseevich Voloshin Aleksandr Avramovich Glushakov Adolf Yakovlevich Kurtov Veniamin Dmitrievich	SU787618A1
AGGREGATE FOR A CONCRETE BRIDGE MOUNTING	1991	Kurtov V.D. Allakhverdiev K.G. Gasanov F.Sh.	RU2010950C1
HYDROMECHANICAL JAR	0	Kurtov Veniamin Dmitrievich Serezhnikov Vladimir Vladimirovich Shevchenko Konstantin Arnoldovich	SU1686126A2
DEVICE FOR CEMENTING CASING STRINGS	1990	Kurtov Veniamin Dmitrievich	RU2043482C1
APPARATUS FOR DOUBLE-STAGE CEMENTING OF CASINGS	0	Kurtov Veniamin Dmitrievich Glushakov Adolf Yakovlevich Yurchenko Grigorij Andronovich Dejneka Ivan Vasilevich Shatilin Eduard Andreevich	SU1289982A1
DEVICE FOR CONTROLLING HOLE-BOTTOM CEMENTING OF WELLS	0	Kurtov Veniamin Dmitrievich Shigaev Semen Ivanovich Luban Vladimir Zelmanovich Plakhetko Igor Vasilevich	SU1411440A1

RU 2 044 864 C1

Authors

Kurtov Veniamin Dmitrievich[Ua]

Shevchenko Konstantin Arnol'Dovich[Ua]

Dates

1995-09-27—Published

1992-08-24—Filed