Enhanced oil recovery (EOR) from shale formations is recognized as the next frontier in exploitation of unconventional resources. Current approaches for performing EOR experiments using fractured rocks can generate misleading results cores cannot be saturated with live oils. In this work, a novel laboratory methodology developed to quantify efficiency gas huff-n-puff under realistic reservoir c...

The injection from a well to other wells can be difficult in extralow-permeability oil reservoirs. In order address this issue, method of cyclic huff-n-puff with surfactants based on complex fracture networks for single horizontal was proposed and then investigated terms the effects parameters recovery water-wet models. Firstly, interfacial tension (IFT) contact angle different surfactant conce...

The cyclic injection of CO2, referred to as the huff-n-puff (HnP) method, is an attractive option improve oil recovery from unconventional reservoirs. This study evaluates optimization CO2 HnP method and provides insight into aspects sequestration for Furthermore, this also examines impact nanopore confinement, fluid composition, solvent, diffusivity parameters, fracture properties on long-term...

In view of the current situation lack suitable calculation models for analysis production dynamics fractured horizontal well with CO2 huff and puff in shale reservoirs，based on process mechanism puff, an analytical model reservoirs was proposed, which took into account changes crude oil viscosity volume caused by difference concentration at different locations formation after soaking...

Duvernay shale is a world class deposit with total resource of 440 billion barrels oil equivalent in the Western Canada Sedimentary Basin (WCSB). The volatile recovery factors achieved from primary production are much lower than those gas-condensate window, typically 5–10% original place (OOIP). previous study has indicated that huff-n-puff gas injection one most promising enhanced (EOR) method...

Steam huff and puff injection is one of the thermal EOR methods in which steam injected a cyclical manner alternating with oil production. The cost time inefficiency problem reservoir simulation persists design scheme. Building predictive proxy models suitable solution to deal this issue. In study, method were developed using two machine learning algorithms, comprising conventional polynomial r...