scispace - formally typeset
Search or ask a question
Author

Xiao-Ping Li

Bio: Xiao-Ping Li is an academic researcher from Southwest Petroleum University. The author has contributed to research in topics: Fractal & Porous medium. The author has an hindex of 3, co-authored 7 publications receiving 21 citations.

Papers
More filters
Journal ArticleDOI
TL;DR: The results show that the two-way coupling model, as well as the UDF solving program, performs a more comprehensive approach for the modeling of the gas–liquid two-phase flows in the moisture separators.

18 citations

Journal ArticleDOI
TL;DR: In this article, the authors derived the permeability and porosity models of bi-fractal porous media based on the assumption that a porous media consists of fractal solid clusters and capillary bundles.
Abstract: In previous studies, it is found that the frame and pore in porous media both possess the fractal geometric character. So the permeability and porosity models of bi-fractal porous media are derived based on the assumption that a porous media consists of fractal solid clusters and capillary bundles. The expressions of presented models are constituted by the fractal parameters of solid cluster and those of capillary bundle. Good agreement between model predictions and experimental data is obtained. This verifies the validity of the permeability and porosity models for bi-fractal porous media. The sensitive parameters that influence the permeability and porosity are specified, and their effects on the relationship between permeability and porosity are discussed.

6 citations

Patent
27 Dec 2019
TL;DR: In this paper, an analysis method for the residual gas distribution characteristics of a reservoir is characterized by comprising the following steps: step 1, collecting and arranging the static data and dynamic data of a research block; step 2, calculating the reserve, water body energy, gas production rate, and permeability variation coefficient of a single well.
Abstract: The invention relates to an analysis method for the residual gas distribution characteristics of a reservoir. The analysis method for the residual gas distribution characteristics of the reservoir ischaracterized by comprising the following steps: step 1, collecting and arranging the static data and dynamic data of a research block; step 2, calculating the reserve, water body energy, gas production rate, and permeability variation coefficient of a single well; step 3, drawing contour diagrams of the calculation results in the step 2; and step 4, circling an area meeting a certain standard, ofthe single reservoir, in each contour diagram in the step 3, carrying out area superposition, dividing the research block into different small areas, and researching the different residual gas distribution characteristics and the formation mechanisms thereof. The analysis method for the residual gas distribution characteristics of the reservoir has the following advantages: the large research block can be divided into the small areas with the different residual gas distribution characteristics in combination with the field data, and a basis is provided for formulating a production strategy with regard to the different residual gas distribution characteristics; and the analysis method is high in practicability.

3 citations

Journal ArticleDOI
TL;DR: In this paper, the authors introduced the non-uniformity coefficient (A) and water invasion constant (B) to characterize the non uniformity degree of reservoir physical properties and the activity degree of peripheral water, respectively, based on the dual mechanism of water invasion to recharge the formation energy and seal off the gas in the reservoir.

1 citations


Cited by
More filters
Journal ArticleDOI
25 Mar 2019-Fractals
TL;DR: In this paper, the modified Korteweg-de Vries equation on a Cantor set involving the local fractional derivative is investigated with the aid of the fractal traveling-wave taint.
Abstract: The one-dimensional modified Korteweg–de Vries equation defined on a Cantor set involving the local fractional derivative is investigated in this paper. With the aid of the fractal traveling-wave t...

34 citations

Journal ArticleDOI
TL;DR: In this paper, a new model for 2D complex tortuous fractured porous media based on fractal theory, and two important characteristics of fractures, i.e. branching and tortuosity are considered in the developed permeability model.

29 citations

Journal ArticleDOI
TL;DR: In this article, a new multiscale fractal transport model with an effective porosity model was proposed based on the fractal theory and the multilayer fractal Frenkel-Halsey-Hill (FHH) adsorption.
Abstract: In order to study gas transport properties of fractured shale gas reservoirs for the accurate estimation of shale gas production, a new multiscale fractal transport model with an effective porosity model was proposed based on the fractal theory and the multilayer fractal Frenkel–Halsey–Hill (FHH) adsorption. In shale matrix, both fractal microstructures of pores (such as pore size distribution, flow path tortuosity, and pore surface roughness) and multiscale flow mechanisms (including slip flow and Knudsen diffusion) were coupled. In fracture network, fractal fracture length distribution, stress compaction, and gas pressure were introduced to formulate a new fracture permeability model. These permeability and effective porosity models were then incorporated into the governing equations of gas flow and the deformation equation of reservoirs to form a numerical model. This numerical model was solved within COMSOL Multiphysics for shale gas recovery. Both transport models in shalematrix and fracture network were validated by experimental data or compared with other models. Finally, sensitivity analysiswas conducted to identify key parameters to gas recovery enhancement. Itwas found that themultilayer gas adsorption and fractal microstructures have great impacts on gas production in shale reservoirs. The cumulative gas production can be increased by 26% after 8000 days when themultilayer adsorbed gas is considered. Larger surface fractal dimension and larger tortuosity fractal dimension represent more roughness pore surface, higher flow resistance, and lower cumulative gas production. Bigger pore diameter fractal dimension means more pores, higher permeability, and higher cumulative gas production. Our model with fractal FHH adsorption was in better agreements with field data from Marcellus and Barnett shale reservoirs than other models.

25 citations

Journal ArticleDOI
TL;DR: The simulation result of a separation system is introduced, which proves that numerical methods could be applied to optimize the design of MS for commercial market and the future directions needed to develop both Eulerian-Eulerian and LE methods for MS modeling are reviewed.

24 citations

Journal ArticleDOI
TL;DR: In this article, the authors explored the effect of installing an additional element in the axis of the cyclone separator (in the form of a rod with a circular cross-section) on its performance.

22 citations