In this paper, the effects of stress relaxation on the sealing performance of the fabric rubber
seal are studied under pressure difference and compressive displacement. First, the …

Completely soft, autonomous fluidic robots require valves made of soft materials. Such a soft
valve has been demonstrated recently to enable complex movements of soft robots using a …

Elastomeric seals are essential to two great technological advances in oilfields: horizontal
drilling and hydraulic fracturing. This paper describes a method to study elastomeric seals …

An elastomeric seal needs to be soft to accommodate installation but stiff to block fluid flow.
Here we show that the two requirements are better fulfilled by a strain-stiffening elastomer …

A finite element model of a static seal assembled in its housing has been built and is utilized
to study how the seal deforms under varying loading conditions. The total contact load on …

In a hydrocarbon well, cement fills the annular gap between two steel casings or between a
steel casing and rock formation, forming a sheath that isolates fluids in different zones of the …

The sealing surfaces subjected to the hydrostatic load from the sealed fluid can deform to
such an extent that leakage occurs when the sealed fluid pressure is sufficiently high, and …

Sealing is an important prerequisite for downhole heater work. This paper proposes a
combination of soft and hard, and welding sealing programs, which were analysed using …

Oil and gas will still be the major energy resource of human in a long period. Sealing is one
of the most important operations in oil and gas exploitation, which plays an essential role in …

在今后相当长一个时期, 石油和天然气依然是人类的主要能源. 油气井密封是油气开采中最重要
的作业之一, 在水平钻井, 水力压裂等最新的油气开采技术中发挥着重要的作用 …