Polymer foam cell morphology control and use in borehole filtration devices
AssigneeBaker Hughes Incorporated
InventorsGaurav Agrawal, Ping Duan
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Abstract
A method of deploying a borehole filtration device is provided utilizing the steps of: deploying a filtration device comprising a polymer foam having a first cell structure, a portion of the molecular structure of which polymer foam is degradable by exposure to a post-treatment fluid, into a borehole; and exposing the polymer foam to the post-treatment fluid, thereby modifying the cell structure of the polymer foam to a second cell structure.
Claims19
A method of deploying a borehole filtration device, comprising:
- deploying a filtration device comprising a polymer foam having a first cell structure into a borehole, a portion of the molecular structure of which polymer foam is degradable by exposure to a post-treatment fluid;
- and
- exposing the polymer foam to the post-treatment fluid, thereby modifying the cell structure of the polymer foam to a second cell structure.
A method of preparing a polymer foam, comprising the steps of:
- reacting a first component comprising a first monomer compound with a second component comprising second and third monomer compounds that are each reactive with first monomer compound, the second monomer compound being resistant to degradation by a post-treatment fluid and the third monomer compound being susceptible to degradation by the post-treatment fluid;
- and
- contacting the polymer foam with the post-treatment fluid.
A polyurethane foam that is the reaction product of a first component comprising a polyisocyanate and a second component comprising a polycarbonate polyol and a polyether polyol or polyester polyol.
Dependencies are inferred from the claim text.