Wells – Processes – Material placed in pores of formation to treat resident...
Reexamination Certificate
2007-04-03
2007-04-03
Neuder, William (Department: 3672)
Wells
Processes
Material placed in pores of formation to treat resident...
C166S263000
Reexamination Certificate
active
10828612
ABSTRACT:
The addition of one or more stimulants to a petroleum well in order to enhance the production of the well. If the well is suffering from asphaltene or paraffin build up, the well may be heated either chemically or with steam prior to introduction of the stimulant. Additionally, a solvent may be added to dissolve the asphaltenes and paraffins. The stimulants are allowed to soak into the formation and then the well is returned to production. The stimulants increase the ability of oil to flow through the formation and decrease the ability of water to flow through the formation by coating the water wet portions of the formation with oil soluble chemicals. The stimulants also decrease the viscosity of the oil in formation.
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Crafton, J.W., Oil and Gas Well Evaluation Using the Reciprocal Productivity Index Method, Article No. SPE 37409, 1997.
Limanowka, W.A. et al., Asphaltene Deposition Problems in Oil Industry with Focus on Electric Submersible Pump Applications, Article No. SPE 56662, 1999.
Carbognani, L. et al, Physicochemical Characterization of Crudes and Solid Deposits as a Guideline to Optimize Oil Production, Article No. SPE 64993, 2001.
Griffin, Jonas M, An Approach to Mitigating Wellbore Solids, Abstract No. 71588, 2001.
Neuder William
Roy, Kiesel, Keegan & DeNicola
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