... ABSTRACT: One of the most effective methods for increasing the productivity of oil and gas resources is multi-stage hydraulic fracturing. However, casing deformation challenges associated with multi-stage hydraulic fracturing notably compromise the integrity of the wellbore. Many field data...

... that, the influence of interlaminar difference on propagation behavior of hydraulic fractures (HFs) was investigated through laboratory hydraulic fracturing and mechanical characteristics analysis. The result shows that mechanically weak bedding planes (BPs) leads to obvious anisotropy of rock mechanical properties...

... parameters have not been clarified yet. Based on the laboratory physical simulation test of true triaxial hydraulic fracturing, this paper studies the law of fracture propagation caused by various factors such as horizontal stress difference, well inclination Angle and azimuth Angle. The experimental results...

... ABSTRACT: Laboratory experiments have been carried out to investigate the growth of hydraulic fracture (HF) in an anisotropic rock with pre-existing discontinuities such as bedding planes and veins. The experiments are designed in light of scaling relationships that enable investigation...

... ABSTRACT: Hydraulic fracture branching has been observed in the laboratory and in the field. Our previous studies demonstrate that hydraulic fractures can branch into multiple directions for weak anisotropic in-situ stresses when intermedium injection rate and fluid viscosity are used. However...

... ABSTRACT: The study presents an analysis of the back-stress effect on precise determination of in-situ stresses in a model samples in laboratory experiments on hydraulic fracturing. Main stage of this study included the determination of the fracture closure pressure using standard methods...

... in the subsurface are essential in understanding many geoengineering systems, such as hydraulic fracturing, geological fault reactivation, waste water management, geothermal energy extraction and CO2 sequestration and so on. This paper presents an assumed enhanced strain (AES) finite element method to model...

...., 2018). sustainability hydraulic fracturing upstream oil & gas subsurface storage fracture characterization social responsibility reservoir simulation enhanced recovery climate change plume tal hydraulic fracture reservoir geomechanics pressurization kb502 salah journal co 2...

... ABSTRACT: Hydraulic fracturing is an important treatment for tight reservoirs, however, it may induce high initiation pressure of fracture or generate a hydraulic fracture with simple shape. In order to increase hydraulic fracture efficiency, recently, the fatigue hydraulic fracturing method...

... ABSTRACT: Despite the extensive numerical investigations into hydraulic fracturing with various methods, the constitutive behaviour of the host materials in most of these studies is assumed to be linearly elastic. Under many circumstances, hydraulic fracturing has to take place in geo...

... stiffness evaluation year 2048 hydraulic fracture integrity simulator overburden ARMA 22 246 Geomechanical Risks Mitigation for Safe Long Term CO2 Geological Storage Tan, C.P., Ali, S.S., Yakup, M.H., Mustafa, M.A., Chidambaram, P., Azahree, A.I. and Mazeli, A.H. PETRONAS Group Research...

... ABSTRACT: In the tight reservoirs of Ordos Basin, shale interlayers are abundant. The mechanical properties of interlayers are different greatly from the adjacent sandstones, affecting the vertical propagation of hydraulic fractures, and resulting in a poor reservoir simulation...

... with fault get higher production temperature and poor production flow rate. The more faults there are, the more injected fluid is lost, resulting in lowest heat extraction performance. Thus, in hot dry rock heat mining engineering practice, hydraulic fracturing operations should avoid connect with faults...

... ABSTRACT: Geothermal reservoirs are usually deep and have low permeability. Hydraulic fracturing stimulation of the production and injection wells can help increase the heat extraction from these reservoirs. However, injecting cold fluid in the hot formation can cause considerable volumetric...

... ABSTRACT: Stage-spacing and cluster-spacing techniques have to be employed to stimulate multiple hydraulic fractures to increase the generation of fracture networks. It is hard to investigate the fracture propagation in Lucagou Formation (the shale oil reservoir in Xinjiang Province, China...

... formation under variable fluid viscosity. It is essential to study the propagation mechanism of hydraulic fractures under layered formation with bedding planes, so as to choose an optimal treatment scheme of combined network fracturing. upstream oil & gas complex reservoir reservoir...

... ABSTRACT: The matrix is dense for deep cavernous carbonate reservoirs in Tarim Basin, and oil and gas are mainly enriched in caves. We hope that hydraulic fractures can communicate with more caves. However, the existence of caves will disturb the stress field and influence hydraulic fracture...

... ABSTRACT: Horizontal drilling and large-scale hydraulic fracturing are currently used to increase artificial fracture networks and per well production in unconventional reservoirs. Due to the differences of regional geological characteristics, natural fracture characteristics and geomechanical...

... completion with hydraulic fracturing, in which the proppant particles are injected with fracturing fluids to keep the fractures open after the fracturing pressure is released. To maximize the opening area of the fractures thus the well productivity, the placement of the proppant particles is expected...

... ABSTRACT: This study investigates the characteristics of hydraulic fractures (HFs) formed in low permeability reservoirs that are bounded by salt layers. Three layered systems are modeled, where the thickness of the bounding salt layers differs with respect to the thickness of the shale layer...