... in the sample, and use the results to improve interpretations of field LF-DAS data when multiple fractures are approaching an observation well. The experiment was performed using a transparent 8-inch cube of epoxy with two-parallel radial initial flaws centered in the cube 2.6-inches apart. Fluid was injected...

... Abstract During hydraulic fracturing or acid fracturing treatments, the efficacy and performance of the stimulation fluid largely depends on the bottomhole injection temperatures to which the fluid is exposed as it enters the fracture. This study focuses on calculation of injection temperatures...

.... Finally the short- and long-term benefit of the hydraulic fracturing will be evaluated by simulating the CO2 injection behavior. The review encompasses an analysis of the various key stages involved in CCUS hydraulic fracturing process, starting from the review of rock properties, wellbore orientation...

... Abstract This field study, the first major test on the Department of Energy's (DOE) Austin Chalk / Eagle Ford Shale Laboratory (ACEFSL), explores the application of Diagnostic Fracture Injection Tests (DFITs) on fiber optics. Commonly, DFITs induce a reservoir fracture to measure initial...

... Abstract A method to process microseismic event locations from three injections into the Utah FORGE 16A(78)-32 geothermal well has been developed as part of the 2023 SPE Geothermal Datathon. One objective of the datathon was to develop methods using a few tunable parameters that are capable...

... specific features; frac job was injected in two cycles in several stages, and had long shut-in time (more than 10 hrs) in all stages. Review of this data shows that frac growth in each stage continues at a decreasing rate beyond the end of pumping and how many hours of shut-in was needed for the fracture...

... reservoir, GPS injects water into a storage lens in the subsurface; the lens volume is pressurized by a combination of elastic deformation of the rock strata and overburden lift. GPS is under evaluation in four separate basins across North America. In each site, optimized completion and stimulation methods...

...) signal. In this case the event of contact between two fracture faces and complete fracture closure is clearly identified. As a part of The EGS Collab project, a series of fracture injection tests have been conducted to estimate the minimum principal stress with direct observation of well bore...

... and pressure transient analyses (PTAs) to support the development of a multiphysics inverse model for these EM surveys. First, we conducted PTAs of the shut-in periods after six injections out of 10 to determine the fracture closure pressure (FCP) or the overburden pressure used in a poroelastic fracture...

... Abstract Fracture diagnostic on a cluster scale of multi-stage hydraulic fracturing wells remains challenging but essential to determine the quality of the stimulation operation and the completion strategies for future wells. Since the stimulation fluid is injected at a different temperature...

... freshwater (200 ppm) and saltwater (2,500 ppm) slug injections while running surfaced-based EM surveys. Simultaneously, we measured the following: 1) bottomhole pressure and salinity in five monitoring wells; 2) injection rate using high-precision data loggers; 3) distributed acoustic sensors in four...

... consisted of the injection of a super-critical CO 2 pre-pad (with a target injected volume of 5,000 tons per well) followed by a traditional slickwater or hybrid proppant slurry. The CO 2 was captured from point-source plants that would have released the CO 2 to the atmosphere otherwise. The performance...

... installation and operations reservoir geomechanics reservoir characterization hydraulic fracturing proppant pressure transient testing fracture aperture equation of state drilling operation upstream oil & gas pressure drop concentration barree bpm injection rate directional drilling...

... in unconfined transparent cubic blocks with a dimension of 8-inches on each side. The block was made of transparent epoxy in order to visualize the fracture propagation. Fiber optic sensing cables were embedded in the block with different distances to the source of injection. We injected dyed water through...

... correct fep coefficient isip blowdown fep drillstem/well testing pressure decline near-well friction pressure transient analysis hydraulic fracturing pressure transient testing interpretation restriction fracture extension gradient fracture injection compressibility net pressure...

... directional drilling fluid dynamics monitoring wellbore strain magnitude hydraulic fracture wellbore drilling operation fracture tip propagate deformation fracture width base case fracture geometry fracturing fluid normal strain strain response monitor wellbore injection observation wellbore...

... Abstract A numerical, coupled reservoir flow and geomechanics model has been built using a black-oil simulator and evaluated for diagnostic fracture injection test (DFITs) in unconventional reservoirs. DFITs have evolved into a commonly used technique to generate direct estimates of some key...

... Abstract Fracture propagation is a complicated process in multiple fracturing treatment, especially when initial stress field altered after long-term producing. It has been verified that injection and withdrawal of underground liquid alters stress field then leads to fracture reorientation...

... reservoir pressure was 1,000 psi. The initial V1 DFIT showed virgin reservoir pressure, but surprisingly, the 20 bbl DFIT injection was detected on the H1 BHP gauge. Microseismic mapping of the V1 fracture treatment (15 klbs, 600 bbl) showed a planar fracture with a half-length of 1,000 ft. The V1 fracture...

... Abstract Enhanced oil recovery in unconventional plays has been a focus of many E&P operators to increase recovery factors. Conventional displacement-based secondary (e.g. water flooding) and tertiary EOR methods are not viable options due to their low injectivity in these ultra-low...