Microcapsule well treatment
First Claim
1. A substance release device comprising a polymeric material for releasing a substance into a downhole fluid environment in a well.
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Accused Products
Abstract
A material and a device for releasing chemicals in a fluid environment is disclosed, and a method for releasing substances into downhole fluid environments. The invention also relates to materials for sand control and hydraulic fracturing. The substance release device typically comprises a polymeric material for releasing a substance into a downhole fluid environment in a well, and in preferred embodiments the material comprises a spherical, plastic chemical release capsule which is hard, permeable and may encapsulate a range of solids and/or liquids for subsequent release. These solids or liquids can include inhibitors such as scale inhibitors and other oilfield production chemicals for release into the wellbore of an oil or gas producing well or a water injection well.
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Citations
41 Claims
- 1. A substance release device comprising a polymeric material for releasing a substance into a downhole fluid environment in a well.
- 18. A method of treating a well, the method comprising loading a substance into a polymeric material, inserting the material into the well, and allowing the substance to leach from the polymeric material into the well.
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37. A method of forming a substance-releasing particle for release of substances into a fluid environment in an well, the method comprising mixing the substance to be released with a matrix material forming the particle, and thereafter forming the particle from the mixture of the matrix and the substance, so that the substance is dispersed throughout the formed particle.
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38. A polymeric downhole proppant.
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39. A method of supporting a well or a portion thereof, comprising disposing a support material in the well or portion to be supported, wherein the support material comprises a polymeric material.
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40. A polymeric material for use downhole for the control of particulate matter entering the production stream of the well.
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41. A method of controlling the entry of particulate matter into the production stream of a well, the method comprising disposing a number of polymeric devices into the wellbore between the formation and the production fluids outlet of the well.
Specification