Petroleum Engineering

裂缝堵漏尺度效应

Scale Effect on Fracture Plugging

The study investigates how increasing fracture dimensions (length and height) affect the transport, bridging, settling, and plugging behavior of granular lost circulation materials (LCMs) under laminar flow conditions. It demonstrates that scale enlargement primarily weakens the spatial connectivity of the particle skeleton rather than the compactness of local deposits. / 该研究调查了增加裂缝尺寸（长度和高度）如何影响颗粒型漏失材料（LCM）在层流条件下的输送、架桥、沉降和堵漏行为。研究表明，尺度增大主要削弱了颗粒骨架的空间连通性，而不是局部沉积物的致密性。

Knowledge type: 自然理论
First proposed or discovered
Proposer: Turkey Farm member
Creator: 农场主
Last updated: 2026-11-14 18:05:49

Sub-knowledge points

Particle transport and bridgingSettling behaviorPlugging-zone evolutionSemiempirical scaling correction framework

Higher-order knowledge points

Lost circulation materials (LCMs)Fracture pluggingMultiscale visualization apparatusComputational fluid dynamics-discrete element method (CFD-DEM)

Main parameters and performance indicators

Fracture length: Increases transport distanceFracture height: Controls residence-settling competitionGeneralized fluid Reynolds number (Re): Dimensionless flow parameterDimensionless Bridging Initiation Time (DBIT): Time for bridging to initiatePlugging Coverage (PC): Percentage of fracture area pluggedLocal Packing Density (PD): Density of local deposits

Open problems

Quantifying the effects of fracture length and height on long-distance particle transportOptimizing particle-size gradations for LCMs based on scaleSpecifying field squeeze-injection parameters

Related literature

ranked by community stars

Unraveling the Scale Effect on Fracture Plugging: A Quantitative Study from Lab-Scale Slots to Field-Scale Fractures via Hydrodynamic AnalysisOpen source

裂缝堵漏尺度效应

Sub-knowledge points

Higher-order knowledge points

Main parameters and performance indicators

Open problems

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