Fracture tortuosity

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August undefined, 2024

WebTortuosity is a macroscopic feature defined as the ratio of actual flow path length over a straight-line distance. Normally, the actual flow field can be obtained through either direct … WebThe roughness and tortuosity of fractures are essential parameters affecting the fluid flow in a jointed rock mass. This paper investigates the influence of fracture roughness and …

Fracture Initiation and Morphology of Tight Sandstone by …

WebApr 8, 2024 · The role of disorderliness in mechanical performance for natural cellular materials has not been fully understood yet. Existing research has suggested that introducing disorderliness to periodic cellular materials can cause a reduction in stiffness, strength, ductility, and fracture toughness (Romijn and Fleck, 2007, Chen et al., 1999, … WebSep 25, 1994 · The success of most fracture treatments is primarily dependent on the ability to evaluate the characteristics and critical mechanisms that control how a formation … company profile singapore brochure pdf

XFEM-based cohesive zone approach for modeling near-wellbore …

WebAug 7, 2024 · The secondary fracture spacing/aperture has a great influence on flow behavior of multifractured horizontal wells. In this paper, the effects of secondary fracture spacing/aperture distribution on porosity/permeability of the stimulated reservoir volume are described. A new fractal composite flow model was proposed, which can … WebMar 24, 2024 · The connectivity of the pore/fracture system is the key to CO 2 injection and CH 4 production, which is of great significance in analyzing the correlation and weight of the influencing factors affecting the connectivity on the microscale. ... The Ferret diameter is 0-10 μm. The tortuosity is 2.27111, 1.9034, 3.98522, and 3.51516, respectively ... WebPurpose: To determine the prevalence of dynamic respiratory tortuosity (DRT) of the vertebral artery ostium (VAO) as well as to evaluate its correlation with in-stent … ebay barn door track and rollers

Study on the Effect of Fracture Morphology on Fracture …

Semianalytical Model for Flow Behavior Analysis of ... - Hindawi

WebJan 10, 2024 · Piedrahita and Aguilera established a dual-porosity analysis model to quantitatively calculate secondary mineralization (cementation) and tortuosity in natural fractures. If the influences of matrix, fractures, and vugs are not taken into consideration, it may lead to errors in selecting the value. Then, significant errors occur in calculating ... WebApr 11, 2024 · The increase of Al content brings out the reduction of crack tip plastic zone and crack path tortuosity, which makes a significant decrease in fracture toughness. Moreover, the fracture toughness predicted based on tensile properties is in agreement with that obtained by experiment, and the fracture toughness of two alloys is dominated by ... ebay barry bonds cardsWebAug 19, 2024 · (3) At a fracture bifurcation angle ranging from 0° to 45°, the oil recovery factor increased as the bifurcation angle increased. (4) At a fracture tortuosity of 1.0 to 1.24, changes in tortuosity had little effect on the oil recovery factor during the early stage of imbibition, while it significantly affected the distribution of the residual ... ebay barn shower curtains

"WebSep 1, 2009 · Near-wellbore fracture tortuosity has important impacts on the productivity of fractured oil and gas wells and the injectivity of CO2 or solids disposal injectors. Previous models for simulating ... " - Fracture tortuosity

Fracture tortuosity

$Modification of the Local Cubic Law of fracture flow for weak …$

WebNov 7, 1994 · SPE MembersAbstract. Near-wellbore tortuosity is one of many conditions that can cause additional friction pressure loss during the injection or production phase of a well. Production pressure loss reduces the potential production capacity of the well. In addition, difficulties with proppant placement are often attributed to the presence of … WebJun 20, 2024 · The pressure in the fracture near the wellbore is the value that must be known and analyzed to determine the width, height, and length of the fracture with either net pressure theory or P3D fracture propagation models. The near-wellbore pressure drop is composed of two parts: the perforation friction and tortuosity.

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WebMar 26, 2024 · Near-wellbore fracture tortuosity has important impacts on the productivity of fractured oil and gas wells and the injectivity of CO2 or solids disposal injectors. Previous models for simulating near-wellbore fracture tortuosity usually assume fracture growth in linear-elastic media, without considering the effects of porous features of the rock. In this … WebSep 1, 2024 · Near-wellbore fracture tortuosity has important impacts on the productivity of fractured oil and gas wells and the injectivity of CO2 or solids disposal injectors. Previous models for simulating ...

WebMar 10, 2015 · We thus developed and tested a modified LCL (MLCL) which takes into account local tortuosity and roughness, and works across a low range of local Reynolds Numbers. The MLCL is based on (1) modifying the aperture field by orienting it with the flow direction and (2) correcting for local roughness changes associated with local flow … WebOct 6, 2024 · Fractured seepage is an important factor affecting the interface stability of rock mass. It is closely related to fracture properties and hydraulic conditions. In this study, the law of seepage in a single fracture surface based on modified cubic law is described, and the three-dimensional discrete element method is used to simulate the dam foundation …

WebJun 20, 2024 · Rock fracture mechanics is about understanding what will happen to the rocks in the subsurface when subjected to fracture stress. ... If the near-wellbore … WebMay 4, 2024 · A larger fracture complexity describes a more tortuous fracture. In porous media, tortuosity is commonly used to describe diffusion , which is defined as the arc-chord ratio: the ratio of the length of the curve to the distance between the ends of it. However, the real fractures are in three-dimensional, the whole volume and surface area of the ...

WebApr 12, 2024 · Results show that the variations of fracture aperture increase with the aperture and tortuosity, and the influence of tortuosity (increased by 47.97%) is …

WebThe technology also widens fracture openings, restricts fracture complexity, reduces near-wellbore tortuosity, and increases reservoir connectivity. The slurry can be used as a far-field diverter ... company profiles investing freeWebMay 1, 1999 · An example of fracture tortuosity would be the initiation of longitudinal fractures from a horizontal well, as proven by the fracturing … company profile slideshareWebOct 13, 2024 · The results showed that τ d increases as the fracture tortuosity and pore geometry complexity increases, showing good agreement with the image-based geometric tortuosity values. Moreover, the lowest τ d values were found to coincide with the preferential direction of fracture surfaces and wormhole body for a given sample, … company profile skincare