Wells – Above ground apparatus – Moving tubing or cable into an existing well
Reexamination Certificate
2002-04-22
2004-03-09
Neuder, William (Department: 3672)
Wells
Above ground apparatus
Moving tubing or cable into an existing well
C166S090100
Reexamination Certificate
active
06702011
ABSTRACT:
FIELD
This invention relates, generally, to the treatment of oil and gas wells using nitrogen to increase the production capability of the wells, and specifically, to providing on a single tractor/trailer combination, all of the equipment accessories to pump nitrogen through a coiled tubing into the wells being treated.
BACKGROUND OF THE INVENTION
It is known in the art to provide work over operations using gaseous nitrogen to remove sand and/or water or other impediments to production. The prior art has not recognized that a single tractor trailer unit can be provided with all of the equipment and accessories for running a nitrogen service in combination with a coiled tubing unit to treat such wells. The prior art typically brings two tractor trailer assemblies to the well to be treated, one having a coiled tubing unit, and one having the nitrogen unit. Because of the duplicity of the tractor trailer units, this has caused a doubling of the transportation costs, a doubling of the personnel required to have the units arrive at the well, and a doubling of the number of personnel required to run this service.
It is of the primary object of this present invention to provide a combined tractor trailer unit which utilizes a single tractor and a single trailer to provide a service for treating wells with a combined tractor trailer unit through which gaseous nitrogen can be pumped.
REFERENCES:
patent: 4585061 (1986-04-01), Lyons, Jr. et al.
patent: 6230805 (2001-05-01), Vercaemer et al.
patent: 6264128 (2001-07-01), Shampine et al.
patent: 6273188 (2001-08-01), McCafferty et al.
Crawford James B.
Lamb Edward R.
Neuder William
The Matthews Firm
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