2024 Effects of osmosis on darcy flow in shales

Effects of osmosis on darcy flow in shales

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August undefined, 2024

Webosmosis [oz-mo´sis, os-mo´sis] the diffusion of pure solvent across a membrane in response to a concentration gradient, usually from a solution of lesser to one of greater … WebJun 4, 2015 · There are three basic steps in evaluating pressure-transient data from a horizontal well: Identify the specific flow regimes in the test data. Apply the proper analytical and graphical procedures to the data. Evaluate the uniqueness and sensitivity of the results to properties derived from analysis or simply assumed.

Electroosmotic flow and the validity of the classical Darcy …

WebThe resultsshow that the water imbibition in shales is governed by two diffusionprocesses: ion and water transport. Due to the low diffusivity ofion transport, the existence of osmosis will prolong the durationof water imbibition to a great extent, which may explain the anomaloustime-dependent swelling phenomenon observed in shales. WebOct 30, 2012 · Many shale gas and ultra-low permeability tight gas reservoirs can have matrix permeability values in the range of tens to hundreds of nanodarcies. The ultra-fine pore structure of these rocks can cause violation … technologyadvice company

The Effect of Chemical Osmosis on Oil and Gas Production

WebMar 1, 2024 · Effects of Osmosis on Darcy Flow in Shales Jingyi. Leng, Xiaobo. Lin, Linlin. Wang Published: 1 March 2024 by American Chemical Society (ACS) in Energy & Fuels Energy & Fuels ; doi:10.1021/acs.energyfuels.0c03924 Publisher Website Google Scholar Show/hide abstract The publisher has not yet granted permission to display this … Webdiffusion of ions and pressure), physical change (e.g. loss of hydraulic overbalance due to mud pressure penetration) and chemical change (e.g. ion exchange, alteration of shale water content, changes in swelling pressure) that govern shale stability. WebMay 27, 2024 · The proportion of flow patterns and the effects on flow patterns in shale pores were analyzed. According to the above analytical results, the following conclusions … technology affinity group

Scilit Article - Effects of Osmosis on Darcy Flow in Shales

Effects of Osmosis on Darcy Flow in Shales Semantic …

WebEffects of Osmosis on Darcy Flow in Shales Author: Jingyi. Leng, Xiaobo. Lin, Linlin. Wang Source: Energy & fuels 2024 v.35 no.6 pp. 4874-4884 ISSN: 1520-5029 Subject: … WebEven though the shale may contain a high saturation of gas, the extremely low matrix permeability restricts the movement of the gas, even when very high pressure gradients between the shale matrix and producing well exist, causing the valuable hydrocarbons to be essentially trapped. spc gear gk 650k whiteWebMar 18, 2024 · Osmosis and clay swelling effects develop in the clay pores acting as semi-permeable membrane to the imbibed water and changing the local stress in the … spc galactic python

"Webof mud filtrate into a shale formation increases water content and pore pressure near the borehole, alters the solid structure, and reduces shale strength. Prior research has … " - Effects of osmosis on darcy flow in shales

Effects of osmosis on darcy flow in shales

WebMay 8, 2002 · [1] Electroosmotic flow represents the flow of pore water through a porous medium submitted to an electrical field or an electrical current density. A model is … WebDec 1, 2024 · The slippage effect and boundary layer effect in the flow channels were investigated to explain the convex flow regime theoretically. The convex shape flow …

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WebGreater uniformity in pore diameter size results in more consistent fluid flow (multiple, well distributed, smaller, low velocity flow pathways) and higher permeability (0.60-55.9% across all... WebSep 12, 2024 · Despite the consistency of flow above the limiting pressure with the Darcy law, the resultant flux (flow velocity) is between 24% and 44% less than the flux, which …

WebMar 1, 2024 · Effects of Osmosis on Darcy Flow in Shales Jingyi. Leng, Xiaobo. Lin, Linlin. Wang Published: 1 March 2024 by American Chemical Society (ACS) in Energy & … WebApr 8, 2024 · According to Amao ( 2007 ), the deviation from the Darcy’s law due to inertial effects appears in the petroleum engineering in the following cases: 1. Near the wellbore; 2. Hydraulically fractured wells; 3. Gas reservoirs; 4. Condensate reservoirs; 5. High flow potential wells; 6. Naturally fractured reservoirs; 7. Gravel packs.

WebFeb 6, 2024 · Adding in the pebbles decreases the pore space, and thus decreases the porosity, and each particle of fluid must follow a longer path to traverse the box. With … Webosmosis: a cause of apparent deviations from darcy's law. January 1, 1985 This review of the existing evidence shows that osmosis causes intercepts in flow rate versus …

WebFeb 15, 2024 · With the development of tight and shale reservoirs, more and more attentions have been paid to the flow mechanisms in micro-, and even nano-pores at low fluid velocities. The interaction between solid molecular and the fluid molecular differentiates the flow mechanisms of the shale and tight reservoirs from the conventional reservoirs.

WebThe results showed that the influence of boundary layer is one of the causes of low-velocity non-Darcy flow in tight reservoir. The study has also revealed that the non-uniform distribution of viscosity in the pore throat has a great influence on the nonlinear flow, which is often neglected in previous works. Keywords: Low-Velocity Non-Darcy Flow technology advisory committeeWebOct 1, 2008 · The present approach provides resolution to several issues, including porous media averaging of the pressure and shear-stress terms, effect of porous media heterogeneity and anisotropy, and... spc gear gk630k whiteWebJun 7, 2024 · It has been frequently hypothesized that there is an “effective immobile layer” attached at the solid–liquid interface to represent the hindering effect because of the complicated composition on the flow of crude oil in nanopores. spc front control armsWebJun 12, 2015 · Shale swelling during drilling is attributed to osmotic pressure, where low-salinity water enters the shale pores to cause swelling. Low-salinity water injected into high-salinity Bakken... spc gear gk 650 softwareWebFeb 3, 2024 · Conventional flow models based on Darcy's flow physics fail to model shale gas production data accurately. The failure to match field data and laboratory-scale evidence of non-Darcy... spc gear lix weightWebMay 1, 2002 · In the case of forced flow under a pore fluid pressure gradient, electroosmosis reduces the filtration velocity. This effect can be modeled by introducing an effective or apparent permeability... technology affecting children social skillsWebOsmosis is a specific kind of diffusion; the diffusion of water molecules across a membrane, typically the membrane of a living cell . The environment surrounding each of our cells … technology affects mental health