Quick latch mud mat apparatus

Details Quick latch mud mat apparatus Quick latch mud mat apparatus

1988-11-03

1990-04-17

Dang, Hoang C.

Boring or penetrating the earth

Boring a submerged formation

Boring from floating support with submerged independent...

166339, 166340, 166365, E21B 7128

Patent

active

049171950

ABSTRACT:
A subsea drilling drive pipe apparatus for drilling offshore wells from a floating vessel into the ocean floor. An elongated drilling drive pipe including a plurality of locking pads which are circumferentially positioned about the drive pipe periphery. A foundation structure is removably engageable with the elongated drive pipe by one or more locking pins which detachably engage the drive pipe thereby permitting the assembled members to be lowered as a unit to the ocean floor in contemplation of a subsea well drilling operation.

REFERENCES:
patent: 1132123 (1915-03-01), Royer et al.
patent: 3080921 (1963-03-01), Lacy
patent: 3519071 (1970-07-01), Word, Jr.
patent: 3559754 (1971-02-01), Morrill
patent: 4216835 (1980-08-01), Nelson
patent: 4460047 (1984-07-01), Pokladnik
patent: 4553600 (1985-11-01), Vigouroux et al.
patent: 4611661 (1986-09-01), Hed et al.

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