CA869411A - Device for raising and lowering a drilling column - Google Patents

Device for raising and lowering a drilling column

Info

Publication number
CA869411A
CA869411A CA869411A CA869411DA CA869411A CA 869411 A CA869411 A CA 869411A CA 869411 A CA869411 A CA 869411A CA 869411D A CA869411D A CA 869411DA CA 869411 A CA869411 A CA 869411A
Authority
CA
Canada
Prior art keywords
lowering
raising
drilling column
drilling
column
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA869411A
Inventor
V. Kalabalyk Anatoly
S. Chernikov Mikhail
P. Raigorodsky Rafail
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gosudarstvenny Nauchno-Issledovatelsky I Proektny Institut Neftyanogo Ma Shinostroenia "giproneftemash"
Original Assignee
Gosudarstvenny Nauchno-Issledovatelsky I Proektny Institut Neftyanogo Ma Shinostroenia "giproneftemash"
Publication date
Application granted granted Critical
Publication of CA869411A publication Critical patent/CA869411A/en
Expired legal-status Critical Current

Links

CA869411A Device for raising and lowering a drilling column Expired CA869411A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA869411T

Publications (1)

Publication Number Publication Date
CA869411A true CA869411A (en) 1971-04-27

Family

ID=36355475

Family Applications (1)

Application Number Title Priority Date Filing Date
CA869411A Expired CA869411A (en) Device for raising and lowering a drilling column

Country Status (1)

Country Link
CA (1) CA869411A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5609457A (en) * 1995-01-13 1997-03-11 Burns, Stevenson & Associates, Ltd. Pipe alignment apparatus for use on wellhead derrick

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5609457A (en) * 1995-01-13 1997-03-11 Burns, Stevenson & Associates, Ltd. Pipe alignment apparatus for use on wellhead derrick

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