| Document |
Document Title |
|
JPS5165001A |
A rigid stabilizer sleeve having outwardly extending ribs is slidably received over a collar, internal clamp rings operate to clamp the stabilizer at any desired position on the drill collar; another aspect resides in a structure and met...
|
|
JPS5152901A |
|
|
JPS514483B1 |
A tool for retrieving tubular drill rods or the like from a drill hole. The tool includes an elongated cylindrical member which is dimensioned to be insertable into the broken or disconnected drill rod to be retrieved. The elongated memb...
|
|
JPS513683B1 |
|
|
JPS5028363B1 |
1,245,210. Oil well tar. W. N. SUTCLIFF and J. L. DOWNEN. 24 June, 1970 [14 Aug., 1969], No. 30615/70. Heading E1F. A well jar applies simultaneously to an oil well fish the direct upward strain from a drilling string and an upward jarri...
|
|
JPS5023601Y1 |
|
|
JPS5016283B1 |
|
|
JPS507523B1 |
1,244,705. Boring earth and rock; wells &c. CHEVRON RESEARCH CO. 2 April, 1970 [2 April, 1969], No. 15778/70. Heading E1F; An apparatus for the thermally. assisted removal of a well liner 12 comprises a a spear 18 having a tubing tail 26...
|
|
JPS4947201A |
1382957 Wells &c ENTREPRISE DE RECHERCHES ET D'ACTIVITES PETROLIERES (ELF) 25 April 1973 [27 April 1972] 19628/73 Heading E1F [Also in Division B8] Apparatus for lowering a production liner 2 into a well comprises a member 1 fixed to the...
|
|
JPS4912441B1 |
|
|
JPS4328001Y1 |
|
