|
2011
|
Invention
|
Downhole magnet tool and method of assembly. A downhole magnet tool comprises a top sub having an... |
|
2010
|
Invention
|
Jar with improved valve. A jar comprises an outer housing; an inner mandrel within the outer hous... |
|
|
Invention
|
Downhole apparatus. A double-acting compounder comprises: an outer housing; an inner mandrel disp... |
|
2008
|
Invention
|
Double-acting jar compounder. A double-acting compounder is disclosed having a first end and a se... |
|
|
Invention
|
Double-acting jar. A double-acting jar comprises an inner mandrel and an outer housing. The inner... |
|
|
Invention
|
Downhole tool. An extension sub for a downhole fishing tool, the extension sub comprising a tubul... |
|
1996
|
Invention
|
Jar enhancer. A jar enhancer including a housing in which is telescopically mounted a mandrel, wi... |
