03-01-10 Review - deflocculating them 7 Rev Dust is...

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PE4331 – Drilling Fluid Additives 1. Tannathin is used to provide filtration control 2. Caustic soda (NaOH = Sodium Hydroxide) is used to maintain or increase pH levels which in turn reduces corrosion and neutralized natural gases 3. Calcium chloride is added to a mud to change the flow properties of a lightly treated water based mud (WBM) 4. Water is added to dilute a given WBM 5. Soda ash (Na 2 CO 3 = Sodium Carbonate)is used as an effective flocculant Examples of flocculants: Ca 2+ , Mg 2+ , Al - Flocculants cause clays to coagulate (i.e. curdle or thicken) 6. Spersene is used to neutralized the attractive forces between clay particles thereby
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Unformatted text preview: deflocculating them 7. Rev Dust is commonly used as simulated drilling debris for drilling mud evaluation 8. Barite (BaSO 4 = Barium Sulfate) is a common weighting up material 9. Lime (Ca(OH) 2 = Calcium Hydroxide) 10. SAPP (Na 2 H 2 P 2 O 7 = Sodium Acid Pyro-Phosphate) Caustic soda NaOH Sodium hydroxide Soda ash Na 2 CO 3 Sodium carbonate Barite BaSO 4 Barium sulfate Lime Ca(OH) 2 Calcium hydroxide SAPP Na 2 H 2 P 2 O 7 Sodium acid pyro-phosphate...
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