Nanoparticle collision contact model-based shale pore throat blocking simulation method

Nanoparticle collision contact model-based shale pore throat blocking simulation method

The invention discloses a nanoparticle collision contact model-based shale pore throat blocking simulation method, aims at solving the problem that particle blocking effect is not ideal in the prior art, and has the effects of correctly describing collision behaviors among nanoparticles in drilling...

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Hauptverfasser: ZHANG RUI, LIU ZEHUA, GAO DONGLIANG, TANG YINAN, YU YANAN, BO KEHAO
Format: Patent
Sprache:chi ; eng
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CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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creator ZHANG RUI
LIU ZEHUA
GAO DONGLIANG
TANG YINAN
YU YANAN
BO KEHAO
description The invention discloses a nanoparticle collision contact model-based shale pore throat blocking simulation method, aims at solving the problem that particle blocking effect is not ideal in the prior art, and has the effects of correctly describing collision behaviors among nanoparticles in drilling fluids and simulating mutual action between particles and fluids more truly. The method comprises the following steps of: representing a shale pore throat structure, carrying out multi-point statistical analysis to give a main structure feature, and constructing a shale pore throat structure simulation body; forming a blocking particle swarm according to related parameters of blocking particles and a drilling fluid, and setting a boundary condition and an initial condition; carrying out particlecontact judgement to determine a contact relationship among the particles; establishing a movement equation of moving the blocking particles along with the drilling fluid; solving the movement equation by adoption of a dynam
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subjects CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
title Nanoparticle collision contact model-based shale pore throat blocking simulation method
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