Downhole Chemical Delivery For Oil And Gas Wells
First Claim
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1. A well treatment material comprising:
- a substrate having two or more coatings without an intervening adhesive layer between the substrate and the first coating ;
wherein the substrate is suspended in a fluid, and wherein each coating is a material useful for treating a well.
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Abstract
A method of reducing the cost and environmental impact of chemicals used in hydraulic fracturing is to use a proppant that is coated with at least two chemicals, where each of those chemicals are useful in treating a well. By coating at least two chemicals onto the proppant the amounts of chemicals required to treat a well are reduced by delivering the chemicals to only the areas that require treatment. Additionally mixing issues are avoided as only a single proppant or substrate is used in the well.
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Citations
45 Claims
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1. A well treatment material comprising:
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a substrate having two or more coatings without an intervening adhesive layer between the substrate and the first coating ; wherein the substrate is suspended in a fluid, and wherein each coating is a material useful for treating a well. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method of making a well treatment material, comprising:
coating a substrate with a first coating comprising a first well treating agent and a second coating comprising a second well treating agent without an intervening adhesive layer between the substrate and the first coating. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
Specification