Combined nitrogen treatment system and coiled tubing system in one tractor/trailer apparatus
OwnerJames B. Crawford, Edward R. Lambinventors
Life of this patent
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Abstract
A single tractor unit is provided for pulling a tractor, in which the tractor itself drives a plurality of hydraulic motors which control a crane unit, a coiled tubing injection unit, and the pumps and motors associated with a liquid nitrogen system which is used for injecting gaseous hydrogen into a workover well with coiled tubing. In an alternative mode, the liquid nitrogen system is replaced with one or more nitrogen generators which gather nitrogen from the earth's atmosphere to be pumped through the coiled tubing into the well being treated. Alternatively, the gaseous nitrogen source is one or more tanks of compressed nitrogen gas.
Claims11
A combined system for treating an oil and/or gas well, comprising:
- a single tractor having an one engine for moving itself and for pulling a single tractor, said single tractor and said single trailer having together mounted thereon:
- a reel of coiled tubing;
- a coil tubing injection unit;
- a crane for picking up and lowering said coiled tubing injection unit;
- and
- a tank of liquid nitrogen.
A combined system for treating an oil and/or gas well, comprising:
- a single tractor having an engine for moving itself and for pulling a single tractor, said single tractor and said single trailer having together mounted thereon:
- a reel of coiled tubing;
- a coil tubing injection unit;
- a crane for picking up and lowering said coiled tubing injection unit;
- and
- a source of gaseous nitrogen.
Dependencies are inferred from the claim text.