Apparatus for rotating and reciprocating well pipe

Details Apparatus for rotating and reciprocating well pipe Apparatus for rotating and reciprocating well pipe

1986-07-07

1988-04-12

Kazenske, E. R.

Tool driving or impacting

Means to drive tool about an axis

Means to hold and relatively rotate sections of tool shaft

E21B 300

Patent

active

047368071

ABSTRACT:
Apparatus for simultaneously rotating and reciprocating well pipe mechanically utilizing the rotary table on the drilling rig includes a rotating pipe clamp assembly having an irregular cross-sectional mid-member and clamp members for releasably gripping the well pipe connected to the ends of the mid-member for rotation therewith; a square block for fitting the rotary table square and having a selected groove configuration; and a torque transmitting means fitting into the groove and having openings there-through having the same irregular cross-section as said mid-member cross-section. Means connects the torque transmitting means and the block for limiting torque applied to the well pipe via the clamp assembly and the torque transmitting means.

REFERENCES:
patent: 1339955 (1920-05-01), Hardel
patent: 1928947 (1933-10-01), Newman
patent: 1983545 (1934-12-01), Johnson
patent: 2609881 (1952-09-01), Warren
patent: 2675082 (1954-04-01), Hall
patent: 2784942 (1957-03-01), Peck et al.
patent: 3363688 (1968-01-01), Bielstein
patent: 3570610 (1971-03-01), Kehrberger
patent: 4258802 (1981-03-01), Tullos et al.
patent: 4317493 (1982-03-01), Thompson
B. Mills, "Rotating While Cementing Proves Economical," The Oil Weekly, Dec. 1939, pp. 14 and 15.

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