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Document ID (ISN)34786
CIS number 81-205
ISSN - Serial title 0409-2961 - Bezopasnost' truda v promyšlennosti
Year 1979
Convention or series no.
Author(s) Karapetjan K.V, Hrennikov S.B., Voevoda A.N.
Title Safe addition of new pipes to the drill string
Original title O bezopasnom naraščivanii buril'noj kolonny svečami [in Russian]
Bibliographic information Oct. 1979, No.10, p.29-30. Illus.
Abstract Travel-limiting devices designed to prevent dangerous collisions between the crown and travelling blocks during raising of the drill string have the disadvantage of reducing the available height for addition of further pipes. A tubular extension structure developed to carry the crown block at the top of the derrick, which counters the hazard of eliminating the travel-limiting device for reasons of productivity, is presented.
Descriptors (primary) travel limiting devices; drilling rigs and derricks; petroleum and natural gas industry
Descriptors (secondary) description of equipment; safety and productivity; pulley blocks
Document type D - Periodical articles
Subject(s) Mines and quarries
Broad subject area(s)
Browse category(ies) Petroleum and natural gas industry