相关实验视频

Updated: Sep 16, 2025

Visualizing and Quantifying Pharmaceutical Compounds within Skin using Coherent Raman Scattering Imaging

Visualizing and Quantifying Pharmaceutical Compounds within Skin using Coherent Raman Scattering Imaging

Published on: November 24, 2021

井口皮肤:为什么它的存在和特性如此难以预测

Georg J Houben¹, Matthias Halisch², Reiner Dohrmann³

¹Federal Institute for Geosciences and Natural Resources, BGR, Stilleweg 2, 30655, Hannover, Germany.

|July 11, 2025

概括

井口皮肤,沉积在井壁上,降低了水井的效率. 监测钻井液密度有助于通过识别富含颗粒物层来预测和防止皮肤形成.

科学领域:

地质地质地质地质地质地
水文地质学水文地质学
钻井工程钻井工程

背景情况:

由细粒度颗粒组成的井口皮肤会对水井效率产生负面影响.
之前的研究发现了皮肤类型,厚度和组成的变化,没有明确的解释.

研究的目的:

为了调查井口皮肤形成变化的原因.
为了将钻井液的特性与皮肤特征相关联.
为钻井者提供实用建议.

主要方法:

在类似的地质和技术条件下,从九个井取出的皮肤样本进行了扩展分析.
在钻井过程中监测钻井流体密度的演变.

主要成果:

被确定为皮肤颗粒的主要来源的不凝聚性和差分类的地质层.
观察到的最厚的颗粒积聚在具有高度透性的层中,最初的过率很高.
钻井液密度变化与提供颗粒层的存在之间建立的相关性.

结论:

了解地质源层和钻井流体动力学对于解释井口皮肤变化至关重要.
持续监测钻井液密度可以作为潜在井口皮肤形成的指标.
建议提供了积极的钻井管理,以减轻皮肤相关的效率损失.

更多相关视频

Mechanical Expansion of Steel Tubing as a Solution to Leaky Wellbores

Mechanical Expansion of Steel Tubing as a Solution to Leaky Wellbores

Published on: November 20, 2014

Pore-scale Imaging and Characterization of Hydrocarbon Reservoir Rock Wettability at Subsurface Conditions Using X-ray Microtomography

Pore-scale Imaging and Characterization of Hydrocarbon Reservoir Rock Wettability at Subsurface Conditions Using X-ray Microtomography

Published on: October 21, 2018

相关概念视频

Porosity and Absorption of Aggregate

Porosity and Absorption of Aggregate

Aggregates contain pores of varying sizes; while some are completely enclosed within the particles, others open onto the surface, allowing water to penetrate. The porosity of aggregates is a major factor contributing to the overall porosity of concrete, given that aggregates constitute about three-quarters of concrete's volume.
When all pores in an aggregate are filled with water, the aggregate is considered saturated and surface-dry. If left in dry air, water will evaporate until the...