The state-of-the-art review on the lost circulation phenomenon, its mechanisms, and the application of nano and natural LCM in the water-based drilling fluid
Loss of mud is one of the most challenging issues in drilling operations. This is frequently
referred to as lost circulation. The lost circulation can arise in naturally fractured formations …
referred to as lost circulation. The lost circulation can arise in naturally fractured formations …
The evolution of lost circulation prevention and mitigation based on wellbore strengthening theory: A review on experimental issues
SM Mirabbasi, MJ Ameri, M Alsaba, M Karami… - Journal of Petroleum …, 2022 - Elsevier
One of the most challenging issues during drilling operations is lost circulation, which can
cause several problems that could lead to increasing the non-productive time (NPT) and …
cause several problems that could lead to increasing the non-productive time (NPT) and …
[PDF][PDF] Review of lost circulation materials and treatments with an updated classification
Drilling fluid losses are considered one of the major contributors to drilling non-productive
time (NPT). Lost circulation materials (LCM's) have been widely used to avoid or stop losses …
time (NPT). Lost circulation materials (LCM's) have been widely used to avoid or stop losses …
Lost-circulation control for formation-damage prevention in naturally fractured reservoir: mathematical model and experimental study
Drill-in fluid loss is the most important cause of formation damage during the drill-in process
in fractured tight reservoirs. The addition of lost-circulation material (LCM) into drill-in fluid is …
in fractured tight reservoirs. The addition of lost-circulation material (LCM) into drill-in fluid is …
[PDF][PDF] 构筑井周坚韧屏障: 井漏控制理论与方法
康毅力， 许成元， 唐龙， 李松， 李大奇 - 石油勘探与开发, 2014 - cpedm.com
分析了低承压能力地层致漏机理, 概括出应力笼, 阻渗带和强固环3 种地层强化理论,
建立了不同理论指导下的地层承压能力强化模型, 总结了理论的适用条件及对材料的要求 …
建立了不同理论指导下的地层承压能力强化模型, 总结了理论的适用条件及对材料的要求 …
裂缝封堵失稳微观机理及致密承压封堵实验
邱正松， 暴丹， 刘均一， 陈家旭， 钟汉毅， 赵欣， 陈晓华 - 石油学报, 2018 - syxb-cps.com.cn
裂缝性地层堵漏过程中, 桥接堵漏材料形成的封堵层受力学因素影响易发生失稳破坏,
导致封堵层承压能力较低, 产生重复性漏失. 基于裂缝封堵层微观结构受力分析 …
导致封堵层承压能力较低, 产生重复性漏失. 基于裂缝封堵层微观结构受力分析 …
Finite-element studies of hoop-stress enhancement for wellbore strengthening
Y Feng, C Arlanoglu, E Podnos, E Becker… - SPE Drilling & …, 2015 - onepetro.org
In the drilling of deep horizons, the mud-weight window between pore-pressure gradient
and fracture gradient often narrows because of rock properties and underground-stress …
and fracture gradient often narrows because of rock properties and underground-stress …
Low-temperature recrosslinkable preformed particle gel as a material for lost circulation control
One of the most prevalent, expensive, and time-consuming problems during drilling
operations is the loss of circulation. Uncontrolled lost circulation of drilling fluids may lead to …
operations is the loss of circulation. Uncontrolled lost circulation of drilling fluids may lead to …
[HTML][HTML] Preparation and properties of magnesium oxysulfate cement and its application as lost circulation materials
KX Cui, GC Jiang, LL Yang, ZQ Deng, L Zhou - Petroleum Science, 2021 - Elsevier
Loss of drilling fluids in large porous and fractured zones inevitably up-regulates the overall
cost of drilling. As a type of acid-soluble cement, magnesium oxysulfate (MOS) cement is …
cost of drilling. As a type of acid-soluble cement, magnesium oxysulfate (MOS) cement is …
[HTML][HTML] 钻井液致密承压封堵裂缝机理与优化设计
邱正松， 刘均一， 周宝义， 暴丹， 窦同伟， 肖成才 - 石油学报, 2016 - syxb-cps.com.cn
针对钻井液防漏堵漏技术难题, 借鉴微观颗粒物质力学“强力链” 基本原理, 提出了评价防漏堵漏
材料的颗粒强度, 颗粒弹性, 颗粒表面摩擦等主要精细化技术指标, 建立了相应的实验表征方法 …
材料的颗粒强度, 颗粒弹性, 颗粒表面摩擦等主要精细化技术指标, 建立了相应的实验表征方法 …