Title:
Method and apparatus for well drilling and testing
United States Patent 2663545


Inventors:
Grable, Donovan B.
Application Number:
US27192752A
Publication Date:
12/22/1953
Filing Date:
02/16/1952
Assignee:
Grable, Donovan B.
Primary Class:
Other Classes:
166/106, 166/142, 166/187, 166/206, 166/311, 175/210, 175/214, 175/215, 175/230, 175/237, 175/317
International Classes:
E21B33/12
View Patent Images:
US Patent References:
2567451Drilling apparatus1951-09-11
2231282Removable bridging plug for oil wells1941-02-11
2210815Tool joint pin1940-08-06
2164195Casing tester1939-06-27
1602864Means for testing or operating oil wells1926-10-12
1547240Method and apparatus for testing or operating oil wells1925-07-28
0682939N/A1901-09-17
0597316N/A1898-01-11
0385600N/A1888-07-03