Wellbore Stability Evaluation Guideline for Reducing Non-Productive Time

2013 ◽  
Author(s):  
Frank Meng ◽  
Giin-Fa Fuh
Keyword(s):  
Wellbore Stability ◽  
Stability Evaluation ◽  
Productive Time

Real-Time Wellbore Stability Evaluation for Deepwater Drilling During Tripping

2016 ◽  
Author(s):  
Feifei Zhang ◽  
Yongfeng Kang ◽  
Zhaoyang Wang ◽  
Stefan Miska ◽  
Mengjiao Yu ◽  
...  
Keyword(s):  
Real Time ◽  
Wellbore Stability ◽  
Stability Evaluation ◽  
Deepwater Drilling

Wellbore Stability Evaluation for Horizontal Hole Completion - A Case Study

2000 ◽  
Author(s):  
T. Finkbeiner ◽  
D. Moos ◽  
W. DeRose ◽  
D. Shiflett
Keyword(s):  
Wellbore Stability ◽  
Stability Evaluation

Wellbore Stability Evaluation for Mishrif Formation

2017 ◽  
Author(s):  
Ethar H. K. Alkamil ◽  
Husam R. Abbood ◽  
Ralph E. Flori ◽  
Andreas Eckert
Keyword(s):  
Wellbore Stability ◽  
Stability Evaluation

STEP Change in Preventing Stuck Pipe and Tight Hole Events Using Machine Learning

2021 ◽  
Author(s):  
Salah Bahlany ◽  
Mohammed Maharbi ◽  
Saud Zakwani ◽  
Faisal Busaidi ◽  
Ferrante Benvenuti
Keyword(s):  
Oil And Gas ◽  
Wellbore Stability ◽  
Sensor Data ◽  
Pilot Phase ◽  
Stability Problems ◽  
Engineering Data ◽  
Execution Phase ◽  
Drilling Parameters ◽  
Drilling Operations ◽  
Productive Time

Abstract Wellbore stability problems, such as stuck pipe and tight spots, are one of the most critical risks that impact drilling operations. Over several years, Oil and Gas Operator in Middle East has been facing problems associated with stuck pipe and tight spot events, which have a major impact on drilling efficiency, well cost, and the carbon footprint of drilling operations. On average, the operator loses 200 days a year (Non-Productive Time) on stuck pipe and associated fishing operations. Wellbore stability problems are hard to predict due to the varying conditions of drilling operations: different lithology, drilling parameters, pressures, equipment, shifting crews, and multiple well designs. All these factors make the occurrence of a stuck pipe quite hard to mitigate only through human intervention. For this reason, The operator decided to develop an artificial intelligence tool that leverages the whole breadth and depth of operator data (reports, sensor data, well engineering data, lithology data, etc.) in order to predict and prevent wellbore stability problems. The tool informs well engineers and rig crews about possible risks both during the well planning and well execution phase, suggesting possible mitigation actions to avoid getting stuck. Since the alarms are given ahead of the bit, several hours before the possible occurrence of the event, the well engineers and rig crews have ample time to react to the alarms and prevent its occurrence. So far, the tool has been deployed in a pilot phase on 38 wells giving 44 true alarms with a recall of 94%. Since mid-2021 operator has been rolling out the tool scaling to the whole drilling operations (over 40 rigs).

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