Device and method for measuring adhesion of AM-AA gel and long-distance pipeline

Abstract

The invention relates to the technical field of force measuring, and particularly relates to a device and method for measuring adhesion of an AM-AA gel and a long-distance pipeline, in order to solvethe problem that an ionic bond generated between the colloid and the metal substrate due to the chemical reaction is destroyed during sampling in the existing test method for bonding strength betweena test colloid and a metal substrate. The technical solution adopted by the invention comprises a tensile stress test assembly and a force measuring cup assembly, wherein the force measuring cup assembly comprises two parts of a force measuring cup and a force measuring rod, the force measuring cup is composed of a barrel-shaped cup body, and an upper end cover and a lower end cover having holes in the middle, and the upper end cover is detachably connected to the cup body; the lower end cover and the cup body are in detachable connection, and the outer end surface of the lower end cover is uniformly provided with connecting holes; the middle position of the inner side of the lower end cover is provided with a positioning groove, and the middle hole of the upper end cover has a diameter larger than that of the force measuring rod; the force measuring cup is fixed to the lower part of the bracket, the upper end of the force measuring rod is connected with a tension meter, the lower partthereof is inserted 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...

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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

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