"Basket" can refer to several different tools or components used in drilling and well completion. To provide the most accurate answer, please specify what kind of basket you are interested in.

Here are some examples:

1. Gravel Pack Basket: This is a cylindrical, wire-wrapped mesh basket used in well completion to hold gravel around the wellbore. The gravel pack helps prevent sand production and enhances well productivity.

2. Sand Control Basket: Similar to a gravel pack basket, but specifically designed to contain sand and prevent it from entering the wellbore.

3. Wireline Basket: This is a specialized tool used in wireline operations for retrieving samples or debris from the wellbore.

4. Completion Basket: This refers to a general term for any basket-like device used during the completion of a well. This could include baskets for holding downhole equipment, supporting tubing, or holding cement.

5. Basket for drilling fluids: This refers to a basket that is used in the drilling process to hold and suspend drilling fluids.

Please provide more context or a specific scenario, and I can give you a more accurate answer.