Halliburton Energy Services, Inc.

The University of Texas System

Kejia Yang

Michael Linley Fripp

Walter E Voit

Benjamin R Lund

Radu Reit

Xiaoguang Allan Zhong

Ee Wen Wong

Nelson Yan Loo Lee

Bing Hong Chee

Yong Dai Tan

Provided are methods and systems for manufacturing and using heat-shrink elastomeric. An example method of manufacturing a heat-shrink elastomeric element comprises providing a thermoplastic elastomeric element having a first shape; modifying the thermoplastic elastomeric element to produce a thermoset elastomeric element having the first shape; heating the thermoset elastomeric element to a temperature of at least the glass transition temperature of the thermoset elastomeric element; adjusting the first shape of the thermoset elastomeric element to produce a second shape with at least one dimension greater than that of the first shape; and cooling the thermoset elastomeric element to a temperature below that of the glass transition temperature of the thermoset elastomeric element to produce the heat-shrink elastomeric element.

Method of manufacturing a heat-shrink elastomeric element

A wellbore isolation device includes a mandrel, a sealing element disposed around at least a portion of the mandrel, and a delay coating disposed on at least a portion of an outer surface of the sealing element. The sealing element includes a swellable material and the delay coating covers a cross-linked polymer. The delay coating is configured to swell or degrade in a wellbore fluid.

Delay coating for wellbore isolation device

Growing community of inventors

Dallas, TX, United States of America

Kejia Yang