Method for measuring adhesion coefficient between concrete and metal
By injecting fluid pressure into the concrete-metal interface, the method accurately measures adhesion strength, addressing inaccuracies in existing methods and ensuring reliable adhesion coefficient determination.
RU2865628C1Active Publication Date: 2026-07-07FEDERALNOE GOSUDARSTVENNOE AVTONOMNOE OBRAZOVATELNOE UCHREZHDENIE VYSSHEGO OBRAZOVANIJA NOVOSIBIRSKIJ NATSIONALNYJ ISSLEDOVATELSKIJ GOSUDARSTVENNYJ UNIV (NOVOSIBIRSKIJ GOSUDARSTVENNYJ UNIV NGU)
View PDF 4 Cites 0 Cited by
Patent Information
- Authority / Receiving Office
- RU · RU
- Patent Type
- Patents
- Current Assignee / Owner
- FEDERALNOE GOSUDARSTVENNOE AVTONOMNOE OBRAZOVATELNOE UCHREZHDENIE VYSSHEGO OBRAZOVANIJA NOVOSIBIRSKIJ NATSIONALNYJ ISSLEDOVATELSKIJ GOSUDARSTVENNYJ UNIV (NOVOSIBIRSKIJ GOSUDARSTVENNYJ UNIV NGU)
- Filing Date
- 2025-11-24
- Publication Date
- 2026-07-07
AI Technical Summary
Technical Problem
Existing methods for determining the adhesion strength of concrete to metal in oil and gas wells are prone to errors due to contact stresses, inability to measure the area of separation, and inability to account for the influence of fluids, leading to inaccurate adhesion coefficient measurements.
Method used
A method involving injecting fluid pressure into the concrete-metal interface to measure the maximum pressure and volume at detachment, allowing for accurate determination of the adhesion strength.
Benefits of technology
Enables precise measurement of the adhesion strength between concrete and metal, accounting for fluid influence, thereby predicting and preventing concrete failure at the metal junction.
✦ Generated by Eureka AI based on patent content.
Abstract
FIELD: oil and gas industry.SUBSTANCE: invention relates to determining adhesion, namely the adhesion of concrete and metal, and is used in the operation of oil and gas wells. Concrete is poured onto a metal plate, fluid is injected under pressure into a hole located in the metal, pressure is created on the hardened concrete and the parameters of maximum pressure and fluid flow are recorded, causing the concrete to detach from the metal plate. The obtained coefficients of the maximum force of fluid pressure on concrete and the volume of concrete are used to determine the strength of the adhesive bond between concrete and metal.EFFECT: possibility of measuring the adhesion coefficient between concrete and metal.3 cl
Need to check novelty before this filing date? Find Prior Art