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ON-DEMAND WATER SWELLABLE CEMENT SHEATH WITH SENSING CAPABILITY AND METHOD OF SEALING PROPAGATING CRACKS IN A SUBTERRANEAN FORMATION
A method of sealing propagating cracks in a sensor-laden cement sheath comprising the steps of monitoring an electrical resistivity of the sensor-laden cement sheath to produce a measured value, wherein the sensor-laden cement sheath comprises a conductive sensor, an on-demand expanding agent, and a cement, activating a heat source when the measured value of the electrical resistivity is greater than an activation threshold, increasing a temperature of the sensor-laden cement sheath with the heat source to an activation temperature, wherein the activation temperature is operable to initiate a reaction between the on-demand expanding agent and water, wherein the activation temperature is greater than a formation temperature, reacting the on-demand expanding agent with water to produce a swelled agent, wherein the swelled agent occupies a greater volume than the on-demand expanding agent, and sealing the propagating cracks in the sensor-laden cement sheath with the swelled agent.
ON-DEMAND WATER SWELLABLE CEMENT SHEATH WITH SENSING CAPABILITY AND METHOD OF SEALING PROPAGATING CRACKS IN A SUBTERRANEAN FORMATION
A method of sealing propagating cracks in a sensor-laden cement sheath comprising the steps of monitoring an electrical resistivity of the sensor-laden cement sheath to produce a measured value, wherein the sensor-laden cement sheath comprises a conductive sensor, an on-demand expanding agent, and a cement, activating a heat source when the measured value of the electrical resistivity is greater than an activation threshold, increasing a temperature of the sensor-laden cement sheath with the heat source to an activation temperature, wherein the activation temperature is operable to initiate a reaction between the on-demand expanding agent and water, wherein the activation temperature is greater than a formation temperature, reacting the on-demand expanding agent with water to produce a swelled agent, wherein the swelled agent occupies a greater volume than the on-demand expanding agent, and sealing the propagating cracks in the sensor-laden cement sheath with the swelled agent.
ON-DEMAND WATER SWELLABLE CEMENT SHEATH WITH SENSING CAPABILITY AND METHOD OF SEALING PROPAGATING CRACKS IN A SUBTERRANEAN FORMATION
NACH BEDARF WASSERQUELLBARE ZEMENTHÜLLE MIT FÜHLFÄHIGKEIT UND VERFAHREN ZUM ABDICHTEN VON SICH AUSBREITENDEN RISSEN IN EINER UNTERIRDISCHEN FORMATION
GAINE DE CIMENT GONFLABLE PAR L'EAU À LA DEMANDE AVEC CAPACITÉ DE DÉTECTION ET PROCÉDÉ DE SCELLEMENT DE FISSURES DE PROPAGATION DANS UNE FORMATION SOUTERRAINE
MUSSO SIMONE (author) / SANTRA ASHOK (author)
2022-06-22
Patent
Electronic Resource
English
European Patent Office | 2021
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