Experimental and numerical investigation of time-delayed pressurization for the manipulation of breakdown pressure and acoustic emissions during hydraulic stimulation
Sign Up to like & getrecommendations! Published in 2020 at "Engineering Fracture Mechanics"
DOI: 10.1016/j.engfracmech.2020.107005
Abstract: Abstract For the mitigation of micro-seismicity during hydraulic stimulation, we introduce the concept of time-delayed pressurization (TDP) which involves arresting the constant-rate process of borehole pressurization for a given delay period, and then resuming it… read more here.
Keywords: time delayed; hydraulic stimulation; breakdown pressure; delayed pressurization ... See more keywords
Machine Learning-Based Accelerated Approaches to Infer Breakdown Pressure of Several Unconventional Rock Types
Sign Up to like & getrecommendations! Published in 2022 at "ACS Omega"
DOI: 10.1021/acsomega.2c05066
Abstract: Unconventional oil and gas reservoirs are usually classified by extremely low porosity and permeability values. The most economical way to produce hydrocarbons from such reservoirs is by creating artificially induced channels. To effectively design hydraulic… read more here.
Keywords: rock types; machine learning; breakdown pressure; pressure ... See more keywords
An Experimental Study to Reduce the Fracture Pressure of High Strength Rocks Using a Novel Thermochemical Fracturing Approach
Sign Up to like & getrecommendations! Published in 2019 at "Geofluids"
DOI: 10.1155/2019/1904565
Abstract: Current oil prices and global financial situations underline the need for the best engineering practices to recover remaining oil from unconventional hydrocarbon reservoirs. These hydrocarbon reservoirs are mostly situated in deep and overpressured formations, with… read more here.
Keywords: strength; borehole; thermochemical fracturing; breakdown pressure ... See more keywords
Experimental Investigation on Cracking Characteristics of Dry and Saturated Shales in Nitrogen Fracturing after Liquid Nitrogen (LN2) Injection
Sign Up to like & getrecommendations! Published in 2023 at "Geofluids"
DOI: 10.1155/2023/8861524
Abstract: Cryogenic LN2 fracturing is one of the environmentally friendly waterless fracturing technologies that promote the fracture complexity of shale gas reservoir. The water-ice phase transition under freezing condition causes frost heave in saturated shale. The… read more here.
Keywords: dry saturated; breakdown pressure; pressure; shale ... See more keywords
Numerical Investigation of the Impacts of Borehole Breakouts on Breakdown Pressure
Sign Up to like & getrecommendations! Published in 2019 at "Energies"
DOI: 10.3390/en12050888
Abstract: Borehole breakouts appear in drilling and production operations when rock subjected to in situ stress experiences shear failure. However, if a borehole breakout occurs, the boundary of the borehole is no longer circular and the… read more here.
Keywords: breakdown pressure; numerical investigation; pressure; borehole breakouts ... See more keywords