Methods of reducing circulation loss in a wellbore using a red mud sealant composition
A sealant composition using red mud, cement, and epoxy resin forms a durable seal in wellbores, overcoming the inefficiencies of existing loss control materials by creating a rigid gel that withstands complex fracture shapes and harsh conditions.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- SAUDI ARABIAN OIL CO
- Filing Date
- 2026-01-05
- Publication Date
- 2026-07-09
AI Technical Summary
The oil and gas industry faces significant challenges with drilling fluid loss due to lost circulation in wellbores that penetrate fractured, cavernous, or highly permeable geological formations, where existing loss control materials are ineffective for complex fracture shapes and sizes.
A sealant composition comprising red mud, cement, and an epoxy resin with a crosslinker is applied to the wellbore, forming a hard, rigid gel that seals loss zones, utilizing red mud's mechanical, thermal, and chemical properties to enhance sealing effectiveness.
The sealant composition effectively reduces circulation loss by forming a durable seal in wellbores, addressing the limitations of existing loss control materials and providing resistance to high temperatures and acids.
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