发明名称 DEVICE FOR DETECTING OBSTRUCTION POSITIONS IN OPERATION COLUMN
摘要 FIELD: oil and gas extractive industry. ^ SUBSTANCE: device has body with ports in lower and upper ends, main sensitive elements in form of turbines and packing elements, placed in pairs at body ends, side port made in body between main sensitive elements and converter, connected to surface equipment. In side pipe, mounted inside the body between main sensitive elements, additional sensitive element is placed in form of turbine and thermal sensor. Lower end of side pipe is connected to side port. Diameter of turbine of additional sensitive element is less than diameter of turbines of main sensitive elements. Converter is a control block mounted above body including sleeves locator and electronic microprocessor device. ^ EFFECT: higher precision. ^ 1 dwg
申请公布号 RU2244121(C1) 申请公布日期 2005.01.10
申请号 RU20030126240 申请日期 2003.08.27
申请人 发明人 GABDULLIN R.G.;MAKHMUTOV I.KH.;STRAKHOV D.V.;ZIJATDINOV R.Z.;AKHMETSHIN A.A.;SALAKHIEV A.F.;NIZAMOV I.G.;VALEEV A.F.;KHAMIDULLIN D.A.
分类号 E21B33/12;E21B47/098 主分类号 E21B33/12
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