Sand screen with a non-woven fiber polymer filter
AssigneeSchlumberger Technology Corporation
InventorsJushik Yun, Scott Malone, Xiaohong Ren, Paarth Thapar
Life of this patent
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Abstract
A sand screen for use within a wellbore. The sand screen may include a non-woven fiber polymer filter and a mechanical retainer. The non-woven fiber polymer filter may have a compressed state and an expanded state. The mechanical retainer may retain the non-woven fiber polymer filter in the compressed state. The non-woven fiber polymer filter may be expandable after exposure to a wellbore condition.
Claims20
A sand screen for use within a wellbore, the sand screen comprising:
- a non-woven fiber polymer filter having a compressed state and an expanded state;
- and
- a mechanical retainer that retains the non-woven fiber polymer filter in the compressed state;
- wherein the non-woven fiber polymer filter is expandable from the compressed state to the expanded state after exposure to a wellbore medium, and
- wherein the non-woven fiber polymer filter is configured to have different expansion behavior from the compressed state to the expanded state in different wellbore media, wherein an expansion percentage of the non-woven fiber polymer filter in oil is greater than an expansion percentage of the non-woven fiber polymer filter in water.
A method of completing a well, the method comprising:
- covering a base pipe with a sand screen comprising a non-woven fiber polymer filter in a compressed state;
- retaining the non-woven fiber polymer filter in the compressed state via a mechanical retainer;
- running the base pipe and non-woven fiber polymer filter to a location in a wellbore;
- expanding the non-woven fiber polymer filter via exposure to a wellbore medium to an expanded state that conforms the non-woven fiber polymer filter to a wall of the wellbore, wherein the non-woven fiber polymer filter is configured to have different expansion behavior from the compressed state to the expanded state in different wellbore media, wherein an expansion percentage of the non-woven fiber polymer filter in oil is greater than an expansion percentage of the non-woven fiber polymer filter in water;
- and
- filtering fluids through the non-woven fiber polymer filter to the base pipe.
A completion assembly for use within a wellbore, the completion assembly comprising:
- a base pipe;
- and
- a sand screen positioned around the base pipe, the sand screen comprising:
- a non-woven fiber polymer filter having a compressed state and an expanded state;
- and
- a mechanical retainer that retains the non-woven fiber polymer filter in the compressed state;
- wherein the non-woven fiber polymer filter is expandable from the compressed state to the expanded state after exposure to a wellbore medium, and
- wherein the non-woven fiber polymer filter is configured to have different expansion behavior from the compressed state to the expanded state in different wellbore media, wherein an expansion percentage of the non-woven fiber polymer filter in oil is greater than an expansion percentage of the non-woven fiber polymer filter in water.
Dependencies are inferred from the claim text.