Boring or penetrating the earth – Processes – Boring with specific fluid
Reexamination Certificate
2007-04-24
2007-04-24
Neuder, William P (Department: 3672)
Boring or penetrating the earth
Processes
Boring with specific fluid
C175S206000, C166S265000, C166S075120
Reexamination Certificate
active
11243232
ABSTRACT:
A modularly segmented apparatus for precise borehole pressure control, removing waste from borehole fluid, and recirculating the cleaned borehole fluid includes a pressure control section, a gas separator section, and a waste management section. In the pressure control section, a pressure manifold interconnects a plurality of chokes. A plurality of valves are used to direct the contaminated fluid through one of the chokes, which maintains a precise and predetermined pressure in the system. The manifold, chokes, and valves are mounted on a skid for easy transport. In the gas separator section, a gas separator is used to remove a majority of the gases present in the contaminated borehole fluid. In the waste management section, a vibratory separator removes large solid contaminants from the degassed fluid. The solids are directed to a solids collection container for further treatment or disposal. The fluid is directed to a first pit, which may be one partitioned are of a larger collection tank. Fluid from the first pit is directed to a degasser which removes additional gases in the fluid and directs the fluid to a second pit. Fluid from the second pit is directed to a desilter, which removes additional solids and directs the fluid to a third pit. The solids from the desilter are directed to the solids collection container. Fluid from the third pit is directed to active rig pumps for recirculation into the borehole.
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M-I SWACO, TOGA System Product Bulletin, 1998, 4 pages.
Delahoussaye Paul
Duhe Jason
Gharst James
Simon, legal representative Stella
Ballew Kimberly
M-l L.L.C.
M-l L.L.C.
Neuder William P
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