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2 211 911

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Application

2001117262/03, 2001-06-19

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Start date

2001-06-19

(22)

Actual filing date

2001-06-19

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Published

2003-09-10

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Inventor

Ratanov K.A.Khamitov R.A.Beloborodov M.V.Khajrullin R.N.Nurutdinov S.G.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo

METHOD OF INSTALLATION OF CENTRALIZER ON SUCKER ROD Russian patent published in 2003 - IPC

Abstract RU 2211911 C2

FIELD: oil producing industry, particularly, oil recovery by pumping units with help of sucker rods operating under conditions of large curving of wellbore and provided, mainly, with polymer antirust coating. SUBSTANCE: method includes formation on sucker rod part, where centralizer is to be installed, on seamless expansion, for instance, by local heating of sucker rod with its subsequent upsetting. Then, centralizer is secured to said place by casting. EFFECT: provided preservation of antirust coatings on sucker rods, prevented wear of sucker rods in course of operation of wells with large curving of their wellbores. 2 dwg

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RU 2 211 911 C2

Authors

Ratanov K.A.

Khamitov R.A.

Beloborodov M.V.

Khajrullin R.N.

Nurutdinov S.G.

Dates

2003-09-10—Published

2001-06-19—Filed

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