borehole collapse 中文意思是什麼
borehole collapse
解釋
井塌-
This thesis integrates the borehole collapse model with the artificial fracture and imaging well logging to get the size and direction of in - situ stress, and set up the reasonable prediction model of fracture pressure and breakout pressure for carbonate profile, by making use of the rock mechanics parameters from logging information, based on comparing the present various prediction models
本文在此綜合應用井眼崩落法、人工壓裂法和成像測井法以確定地應力的大小和方向，並在分析比較國內外各種地層破裂壓力和坍塌壓力預測模型優缺點的基礎之上，從測井資料中提取多種巖石力學參數，建立了適合於碳酸鹽巖地層的破裂壓力和坍塌壓力預測模型。 -
Analysis of borehole collapse cycling time for shale
泥頁巖井壁坍塌周期分析 -
The result demonstrates that structural fractures and non - structural fractures ( such as weathered fractures and fractures related to collapse of paleo - caves ), extensional fractures and shear fractures, and the filling and solution characteristics of fractures can be differentiated with the help of borehole electric images combined with core calibration and interpretation of traditional well log curves
根據電成像測井圖像解釋，利用裂縫圖像的顏色（或灰度）和產狀特徵，結合巖芯標定和常規測井資料，可以有效地區分構造裂縫與非構造裂縫、張裂縫與剪裂縫，確定裂縫充填與否和充填物的成分，以及裂縫的溶蝕改造程度。 -
Because of the merit of continuity, economical efficiency, reliability and high resolution, the well logging has shown its advantages, especially in some drilling engineering problem, such as the prediction of rock drillability, selecting the drill bit types, prediction of formation pressure, calculation the in - situ stress, evaluating the borehole walls stability and determining the reasonable mud density, and etc. aiming at the engineering accidents, for example the well spout, well leak, well collapse and the drill blocking during the drill engineering in the t formation in north - east of sichuan, some farther studies of formation pressure in feixianguan from well - logging information are presented in this dissertation
尤其是在巖石可鉆性預測與鉆頭選型、地層壓力預報、地應力計算以及井壁穩定性評價、泥漿密度安全窗確定等鉆井工程問題上。測井技術由於連續性、經濟性、可靠性及解析度高等特點，越來越多地顯示了其優越性。本文針對川東北部三疊系地層在鉆井過程中遇到的井噴、井漏、井塌和卡鉆等工程事故，主要對飛仙關組地層壓力的測井解釋方法作了大量的深入研究工作。
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