Product Description
NewSwell™ loss circulation material is an environmentally safe copolymer used in water-based drilling fluids. The copolymer will swell and expand to 200 times its original volume in freshwater.
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Benefits
NewSwell migrates into a loss circulation zone and, once fully hydrated, seals fractures or voids. The product can also be spotted across unstable formations as a bridging material to reduce formation caving.
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Application
NewSwell can be mixed directly into the drilling fluid or freshwater. It is compatible with alternative LCM products and can be blended with a variety of fibrous materials to increase the tensile strength of the spotting fluid.
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Treatment Recommendation
In a 5-gallon pail, add 1-3 pounds of material to 4 gallons of water. Pump the mixture as soon as possible; the polymer will begin to swell immediately after freshwater is introduced. Vary the amount of product as needed based on results of the initial treatment.
When spotting a pill, immediately pull up above the pill to avoid stuck pipe. After 30 minutes, the material will be fully hydrated and will have formed a bridge across the loss zone. Circulate the hole with the fluid and lost circulation material.
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Typical Physical Properties
Appearance: | White, granular powder |
Solubility: | Insoluble, swells upon contact with water |
Specific Gravity: | 0.8-1.0 |
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Handling and Storage
Keep material dry, if water is introduced the product will swell. Observe all precautions described in the SDS for NewSwell.
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Packaging
NewSwell is available in 55 pound (25 kilogram) multiwalled bags.