For processes such as water injection in deep geothermal production, heat transfer and fluid flow are coupled affect one another, which leads to numerous challenges wellbore structure safety. Due complicated structures, consisting of casing, cement sheaths, formations under high temperature, pressure, situ stress, the effects thermo-hydro-mechanical (THM) coupling crucial for instability contro...

Casing deformation caused by fault and fracture sliding derived from fracturing has attracted growing attention. frequently occurs during the hydraulic process in Sichuan Basin. Although its mechanism been intensively studied, this issue is becoming increasingly severe demands immediate solutions, especially shale gas blocks of Changning-Weiyuan-Zhaotong. The present study summarizes analyzes r...

Objective: This work aims to reduce the acoustic noise level of transcranial magnetic stimulation (TMS) coils. TMS requires high currents (several thousand amperes) be pulsed through coil, which generates a loud impulse whose peak sound pressure (SPL) can exceed 130 dB(Z). poses risk hearing and elicits unwanted neural activation auditory brain circuits. Methods: We propose new double-containme...

A description of a new design vibrating machine for strengthening the surface plastic deformation cylindrical long parts, in particular stabilizers wheeled carriages railway cars, is given. The main and technological parameters process vibration – centrifugal these parts are outlined. influence this hardening on such basic indicator processing as depth experimentally investigated samples from 4...

Extensive slug-test experiments have been performed at the Hydrogeological Experimental Site (HES) of Poitiers in France, made up of moderately fractured limestones. All data are publicly available through the "H+" database, developed within the scope of the ERO program (French Environmental Research Observatory, http://hplus.ore.fr). Slug-test responses with high-frequency (> 0.12 Hz) oscillat...

The detection and the measuring of developing damages must be accompanied by evaluation supporting ability design in terms increasing size a defect. If type damage is dominant one on further period operation, so received functional dependences can used to predict residual life designs. As illustrated casing pipes 168.3 mm diameter, where general corrosion inner surface, algorithm receive expres...

Ensuring proper punctuation and letter casing is a key pre-processing step towards applying complex natural language processing algorithms. This especially significant for textual sources where are missing, such as the raw output of automatic speech recognition systems. Additionally, short text messages micro-blogging platforms offer unreliable often wrong casing. survey offers an overview both...

The tightness of the casing-rock formation interface is one most important elements drilling and cementing jobs. In absence required tightness, there a risk gas migration directly to ground, groundwater or atmosphere. order eliminate this type uncontrollable unfavorable flows, casing column sealed with cement slurry in annular space beyond casing. Cement displaces mud present space, although ca...

Abstract This contribution focuses on the combined analysis of mistuning and unilateral blade-tip/casing contacts. A two-dimensional (2D) phenomenological finite element (FE) model an aircraft engine fan stage is considered. It reduced by means Craig–Bampton component mode synthesis method contact treatment relies a Lagrange multiplier algorithm within explicit time-integration scheme. Blade-ti...