Pseudo threshold pressure gradient (PTPG) exists in the propped fractured reservoir, but its nonlinear flow law remains unclear. The effects of the mineral composition of shale and microstructure of fracturing fluid on PTPG were analyzed by X-ray ...
Jidong Gao +5 more
doaj +1 more source
Microseismicity and permeability enhancement of hydrogeologic structures during massive fluid injections into granite at 3 km depth at the Soultz HDR site [PDF]
A high-rate injection of 20 000 m3 of water into granite between 2.8 and 3.4 km depth at the Soultz hot dry rock (HDR) test site in France in 1993 September led to a 200-fold increase in borehole transmissivity and produced a subvertical cloud of ...
Baria, R. +8 more
core
Full-waveform Based Complete Moment Tensor Inversion and Stress Estimation from Downhole Microseismic Data for Hydrofracture Monitoring [PDF]
Downhole microseismics has gained increasing popularity in recent years as a way to characterize hydraulic fracturing and to estimate in-situ stress state.
Song, Fuxian, Toksoz, M. Nafi
core
Study on proppant flowback mechanism during post-fracturing stage based on CFD-DEM
Proppant flowback in the post-fracturing flowback period not only reduces the fracture conductivity but also damages equipment. Due to the current lack of experimental or numerical simulation methods for proppant flowback in partial closure fracture, the
Mingkun Lv +5 more
doaj +1 more source
Fracture network types revealed by well test curves for shale reservoirs in the Sichuan Basin, China
Pressure buildup testing can be used to analyze fracture network characteristics and conduct quantitative interpretation of relevant parameters for shale gas wells, thus providing bases for assessing the well productivity and formulating proper ...
Yanyan Wang +4 more
doaj +1 more source
Pressure Transient Analysis for Hydraulically Fractured Wells with Changing Conductivity in Stratified Reservoirs: Case Study in Xinjiang Oilfield. [PDF]
Li J +5 more
europepmc +1 more source
Crash tests of three identical low-wing single-engine airplane [PDF]
Three identical four place, low wing single engine airplane specimens with nominal masses of 1043 kg were crash tested under controlled free flight conditions. The tests were conducted at the same nominal velocity of 25 m/sec along the flight path.
Alfaro-Bou, E., Castle, C. B.
core +1 more source
Fracture network simulation is a key technology for quantitatively evaluating the geometric dimensions and conductivity of fracture networks, which is of great significance for the optimal deployment of well patterns and the optimization of fracturing
ZHANG Guorong +4 more
doaj +1 more source
Hydraulic fracturing, which creates propped fractures to establish high-conductivity pathways near production wells, has emerged as a promising technology for boosting gas production efficiency in low-permeability marine natural gas hydrate (NGH ...
Bing Li +6 more
doaj +1 more source
Interaction of natural and hydraulic fractures: the impact on reservoir pressure buildup and risk of shear fault reactivation in the Upper Devonian Duvernay Formation, Fox Creek, Alberta. [PDF]
Li Q +3 more
europepmc +1 more source

