Investigation on influence of drilling unloading on wellbore stability in clay shale formation
نویسندگان
چکیده
منابع مشابه
The Research on Influence of Unloading on Borehole Stability in Clay- Rich Shale Formation
Received: April 29, 2017 Revised: July 01, 2017 Accepted: August 30, 2017 Abstract: Introduction: Unloading phenomenon happens in the beginning of drilling and is able to change stress state around borehole. This change of stress state causes impact on rock structure and strength, thus affecting the evaluation of wellbore stability. Especially for determining initial mud pressure, unloading is ...
متن کاملWellbore Stability in Shale Formation Using Analytical and Numerical Simulation
Optimization of drilling fluid parameters such as mud weight, salt concentration, and temperature is essential to alleviate instability problems during drilling through shale sections. The selection of suitable mud parameters can benefit from analyses that consider significant instability processes involved in shale-drilling–fluid interactions. This paper describes the development of analytical...
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متن کاملwellbore stability in shale formation using analytical and numerical simulation
optimization of drilling fluid parameters such as mud weight, salt concentration, and temperature is essential to alleviate instability problems during drilling through shale sections. the selection of suitable mud parameters can benefit from analyses that consider significant instability processes involved in shale-drilling–fluid interactions. this paper describes the development of analytical...
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ژورنال
عنوان ژورنال: Petroleum Science
سال: 2020
ISSN: 1672-5107,1995-8226
DOI: 10.1007/s12182-020-00438-w