Invention Grant
- Patent Title: Loss circulation material composition having alkaline nanoparticle based dispersion, water insoluble hydrolysable polyester, and formaldehyde resin
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Application No.: US16423395Application Date: 2019-05-28
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Publication No.: US11015102B2Publication Date: 2021-05-25
- Inventor: Vikrant Wagle , Rajendra Kalgaonkar , Abdullah Al-Yami , Zainab Alsaihati
- Applicant: Saudi Arabian Oil Company
- Applicant Address: SA Dhahran
- Assignee: Saudi Arabian Oil Company
- Current Assignee: Saudi Arabian Oil Company
- Current Assignee Address: SA Dhahran
- Agency: Bracewell LLP
- Agent Constance G. Rhebergen; Brian H. Tompkins
- Main IPC: C09K8/035
- IPC: C09K8/035 ; C09K8/03 ; C09K8/10 ; E21B21/00
Abstract:
A lost circulation material (LCM) is provided having an alkaline nanosilica dispersion, a polyester activator, and a formaldehyde resin. The alkaline nanosilica dispersion and the polyester activator may form a gelled solid after interaction over a contact period, such that the gelled solid incorporates the formaldehyde resin. Methods of lost circulation control using the LCM are also provided.
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