A device and method for measuring the adhesion of am-aa gel to long-distance pipelines

Abstract

The invention relates to the technical field of force measurement, in particular to a device and method for measuring the adhesion force between AM-AA gel and a long-distance pipeline. The method aims to solve the problem that the ionic bond between the colloid and the metal matrix will be destroyed due to chemical reaction in the existing test method for testing the bonding strength between the colloid and the metal matrix. The technical solution adopted by the present invention includes a tensile pressure test assembly and a force measuring cup assembly. The force measuring cup assembly includes two parts: a force measuring cup and a force measuring rod. Composed of an upper end cover and a lower end cover, the upper end cover is detachably connected to the cup body; the lower end cover is detachably connected to the cup body, and connecting holes are evenly distributed on the peripheral end surface of the lower end cover; the inner center of the lower end cover is provided with a positioning Groove, the diameter of the middle hole of the upper end cover is larger than the diameter of the force measuring rod; the force measuring cup is fixed on the lower part of the bracket, the upper end of the force measuring rod is connected with the tension gauge, the lower part of it passes through the upper end cover, and the lower end is embedded in the positioning groove.

Description

technical field [0001] The invention relates to the technical field of force measurement, in particular to a device and method for measuring the adhesion force between AM-AA gel and long-distance pipelines. Background technique [0002] With the continuous progress and development of material science, acrylic acid (AM)-acrylamide (AA) gel has the characteristics of high strength and high elasticity, especially can produce chemical adsorption with metal and has the function of degradability. Gel is applied to the rapid plugging and repair technology of oil and gas pipelines, which can realize fast, safe, practical and economical pipeline plugging, and has broad application prospects and research value. In order for the gel to withstand the required pressure and meet the plugging requirements, it is necessary to meet the high strength of the gel itself and the polymer will not produce macroscopic slippage during the pressure bearing process. Under the premise that the gel bod...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a device and method for measuring the adhesion between AM-AA gel and long-distance pipelines, aiming to solve the problem that the colloid and metal matrix will be destroyed during sampling in the existing test method for testing the bonding strength between the colloid and the metal matrix The problem of ionic bonds produced by chemical reactions between

Images