Patent ID: 7240681
Filing Date: 2007-07-10
Classification: B01D

Abstract:
1. A trailer mounted mobile apparatus for dewatering and recovering formation sand from an oil-sand-water mixture contained in a remotely located field oil storage tank, said tank having a flanged fluid drain hole located at the bottom thereof, and a flanged fluid inlet hole located above said flanged fluid drain hole, said trailer mounted mobile apparatus towable by a truck, the trailer mounted mobile apparatus comprising: a. a furcated conduit adapted for connection to said tank flanged fluid drain hole, said furcated conduit having a first branch and a second branch, wherein said first branch comprises a first flanged end and a second flanged end, and wherein said second branch has a first end and a flanged second end; b. a high pressure water injection pipe for injecting high pressure water into said formation sand within the tank thereby forming a sluffy, said pipe insertable through said first branch of the furcated conduit and into the formation sand; c. means for withdrawing said slurry from the tank by way of said second branch of the furcated conduit; d. means for injecting treatment chemicals into the sluffy comprising an injection port and an injection conduit located on the second branch of the furcated conduit; e. means for dewatering the slurry said dewatering means located remote from the tank; f. means for transporting the slurry from the tank to the remote slurry dewatering means; g. means for recycling water separated from the slurry back into the tank for later collection and treatment; h. oil skimming means for recycling oil floating on the surface of the sluffy within the remote sluffy dewatering means back into the tank; and, i. forcing means for forcibly inserting said pipe into the formation sand; wherein said forcing means comprises: