Purpose: The goal of our battery research is to produce an all solid-state, high performance rechargeable cell. Moving to a liquid-free polymer electrolyte eliminates the need for heavy casing material, thus the energy density is increased significantly. In addition, the absence of solvent additives leads to better thermal and chemical stability, broadening the range of applications for which t...

Near-wellbore rock fracture is a key subject in subsurface energy extraction. Casing perforation completion perhaps the most used type of well design mainly comparison to open hole completion. However, effects combined casing-cementing-rock structure on pressure transmission fracturing have not been sufficiently addressed, but understanding some important phenomena hydraulic fracturing, such as...

Abstract Casing treatments are used to extend the stability margin of fans or compressors. These typically have an axisymmetric arrangement, but for a fan exposed non-axisymmetric distortion, casing treatment applied fraction annulus is interest target particular distortion feature. In this paper, partial has been designed with axial-skewed slots, and experimental investigation carried out dete...

A technique is described for collecting reef interstitial water using manually-driven well points. This method does not require the use of hydraulic drills, and eliminates the problems associated with the casing of boreholes. The technique allows collection of samples from discrete depths within reef frameworks, and produces samples unaffected by atmospheric or surface seawater contamination. D...

We have created a tunable mechanical nanoscale resonator with potential applications in precise mass, force, position, and frequency measurement. The device consists of a specially prepared multiwalled carbon nanotube (MWNT) suspended between a metal electrode and a mobile, piezo-controlled contact. By exploiting the unique telescoping ability of MWNTs, we controllably slide an inner nanotube c...

The acoustic logging method is the most commonly used to qualify a cement job. It can be run several hours or days after placement and evaluates quality of bond (acoustic coupling) between casing, formation. measures attenuation sound signal as it propagates through formation returns sensor. This technique will help spot free pipe, partially bonded fully pipe. aim this paper analyses logs data ...