Wells – Conduit wall or specific conduit end structure – Flexible tube or cable
Reexamination Certificate
2005-09-06
2005-09-06
Tsay, Frank (Department: 3672)
Wells
Conduit wall or specific conduit end structure
Flexible tube or cable
C166S381000, C175S067000, C175S073000
Reexamination Certificate
active
06938690
ABSTRACT:
A downhole tool for fracturing a subterranean formation according to which a tool having a plurality of discharge jets or nozzles is located in a spaced relation to a wall of the formation to form an annulus between the nozzles and the formation. An acid-containing, stimulation fluid is pumped at a predetermined pressure through the nozzles, into the annulus and against the wall of the formation. A gas is pumped into the annulus so that the stimulation fluid mixes with the gas to generate foam before the mixture is jetted towards the formation to impact the wall of the formation. The tool is adapted to bend, or tilt, so that the discharge jets can come in to proximity to the formation being fractured.
REFERENCES:
patent: 2802537 (1957-08-01), Goldinger
patent: 3892274 (1975-07-01), Dill
patent: 4044833 (1977-08-01), Volz
patent: 4453596 (1984-06-01), Conway et al.
patent: 4453597 (1984-06-01), Brown et al.
patent: 4615564 (1986-10-01), Garrett
patent: 4640362 (1987-02-01), Schellstede
patent: 4730676 (1988-03-01), Luers et al.
patent: 4763734 (1988-08-01), Dickinson et al.
patent: 5060725 (1991-10-01), Buell
patent: 5311952 (1994-05-01), Eddison et al.
patent: 5361856 (1994-11-01), Surjaatmadja et al.
patent: 5494103 (1996-02-01), Surjaatmadja et al.
patent: 5499678 (1996-03-01), Surjaatmadja et al.
patent: 5765642 (1998-06-01), Surjaatmadja et al.
patent: 6142246 (2000-11-01), Dickinson et al.
patent: 6213205 (2001-04-01), Surjaatmadja
patent: 6260623 (2001-07-01), Schick
patent: 6325305 (2001-12-01), Kuhlman et al.
patent: 6394184 (2002-05-01), Tolman et al.
patent: 6401818 (2002-06-01), Papanastasiou
patent: 2004/0089452 (2004-05-01), Middaugh et al.
patent: 0 851 094 (1998-07-01), None
patent: 0 229 434 (1987-07-01), None
patent: WO 02/23010 (2002-03-01), None
SPE 48856 entitled “Hydrajet Fracturing: An Effective Method for Placing Many Fractures In Openhole Horizontal Wells” by J.B. Surjaatmadja et al., dated 1998.
Patent Application entitled “Method for Acid Stimulating A Subterranean Well Formation For Improving Hydrocarbon Production”, U.S. Appl. No. 09/966,129, filed Sep. 28, 2002.
Patent Application entitled “System and Method For Fracturing A Subterranean Well Formation For Improving Hydrocarbon Production”, U.S. Appl. No. 09/966,128, filed Sep. 28, 2001.
Foreign communication from a related counterpart application dated Oct. 5, 2004.
Haynes and Boone LLP
Tsay Frank
Wustenberg John W.
LandOfFree
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