Wells – Processes – Cleaning or unloading well
Reexamination Certificate
2005-12-27
2005-12-27
Bagnell, David (Department: 3676)
Wells
Processes
Cleaning or unloading well
C166S304000, C507S201000, C507S269000, C507S277000
Reexamination Certificate
active
06978838
ABSTRACT:
A method is given for completing an interval of an open-hole injection well penetrating a subterranean formation when the interface between the wellbore and the formation includes a zone invaded by a filter cake that includes bridging materials and other embedded solid materials. The method includes the steps of injecting a clean-up fluid and contacting it with the filtercake for a period of time sufficient to loosen some of the other solids embedded in the filter cake; removing the loosened solids by a high-rate displacement fluid containing suspending additives; and then injecting a dissolving fluid containing a diverter and an effective amount of a salt or acid capable of dissolving the bridging material.
REFERENCES:
patent: 4945991 (1990-08-01), Jones
patent: 5082052 (1992-01-01), Jones et al.
patent: 5113935 (1992-05-01), Jones et al.
patent: 5126051 (1992-06-01), Shell et al.
patent: 5165477 (1992-11-01), Shell et al.
patent: 5341880 (1994-08-01), Thorstensen et al.
patent: 5419394 (1995-05-01), Jones
patent: 5435391 (1995-07-01), Jones
patent: 5476143 (1995-12-01), Sparlin et al.
patent: 5515915 (1996-05-01), Jones et al.
patent: 5881813 (1999-03-01), Brannon et al.
patent: 5909774 (1999-06-01), Griffith et al.
patent: 6140277 (2000-10-01), Tibbles et al.
patent: 6143698 (2000-11-01), Murphey et al.
patent: 6220345 (2001-04-01), Jones et al.
patent: 6263967 (2001-07-01), Morris et al.
U.S. Appl. No. 10/253,962, filed Sep. 24, 2002.
Parlar, M., Brady, M. et al “Filtercake Cleanup Techniques for Openhole Water Injectors With Sand Control: Lessons From Laboratory Experiments and Recommendations for Filed Practices” SPE 77449 presented at the SPE Annual Technical Conference and Exhibition held in San Antonio, Texas Sep. 29, - Oct. 2, 2002.
Morgenthaler L.N. et al. “Optimization of Stimulation Chemistry for Openhole Horizontal Wells” SPE 49098 presented at the 1998 SPE Annual Technical Conference and Exhibition held in New Orleans, Louisiana Sep. 27-30, 1998.
Brady Mark
Morris Liz
Parlar Mehmet
Bagnell David
Curington Tim
Fuller Bryan A
Mitchell Thomas O.
Nava Robin
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