Patent · US Active

Lost circulation test method for expandable geopolymers

US11851606B2 · kind B2 · utility

0Cited by

0References

18Claims

0Family size

Assignees

CNPS USA CORPORATION · US
Beijing Huamei, Inc. · CN
China National Petroleum Corporation · CN

Inventors

Weibin Zha · Diemelstraße, US
Meng Lu · Urbana, US
JANINE SHIPMAN · Houston, US

Key dates

Filing date	Oct 28, 2021
Grant date	Dec 26, 2023
Priority date	—
Expiry date	Nov 4, 2041

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P40/10
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The disclosure includes a new test method of evaluating lost circulation prevention with expandable geopolymers. The expandable geopolymer is tested using a permeability plugging tester, slot disk, drilling fluid, and a piston to determine how much fluid is released from the test cell.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.