«Onshore and offshore oil and gas well construction»

Comparison of methods for measuring the strength of silicate gels used in waterproofing works

UDC: 620.17
DOI: 10.33285/0130-3872-2021-11(347)-51-56

Authors:

¹ LLC "PolyEco-Science", Moscow, Russian Federation
² Samara State Technical University, Samara, Russian Federation

Keywords: waterproofing works; gelling compositions; liquid glass; silicic acid sol; gel strength; method of tangential displacement of the plate; conical plastometer

Annotation:

The methods for measuring the strength of silicate gels intended for waterproofing works in oil and gas wells are compared. The methods of immersing the cylinder with recording the maximum load, tangential displacement of a perforated plate and immersion of a cone have been studied. It was determined that these methods are suitable for evaluating gels with a structure. It is shown that the addition of PAA-B polyacrylamide in the amount of 0,04–0,06 % leads to an increase in the strength of silicate gels.

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