Mohamed Hashem
Lead Petroleum Engineer
Saudi Aramco
Mohamed M. Hashem
Mohamed M. Hashem is a Lead Petroleum Engineer with Saudi Aramco in Dhahran. He joined Saudi Aramco in 2014 with Gas Development Petrophysical Unit and he is currently working with Exploration and Unconventional Petrophysics unit since 2022. He began his career with Halliburton in 2008 as LWD Field Engineer in Saudi Arabia. He then joined Weatherford in 2012 as a Senior LWD Engineer mainly responsible for training and mentoring new LWD engineers. He received a BS degree in Mechanical Engineering from Helwan University in 2007.
Participates in
TECHNICAL PROGRAMME | Primary Energy Supply
Advances in Geoscience
Forum 05 | Digital Poster Plaza 1
30
April
10:00
12:00
UTC+3
Real-time formation evaluation and wellbore stability assessment can be crucial to drilling, logging, well-placement, well-testing and completions operations. High temperature environments limit the utilization of certain logging wireline (WL) and Logging-while drilling (LWD) technologies in extreme high temperature conditions or in hole sizes smaller than 5.5”. Although the technology has advanced to increase the number of measurements available in high and extreme high temperatures, some LWD sensors are not yet available in all sizes and environments. The integration of LWD and advanced mud logging provides a viable real-time petrophysical and wellbore stability evaluation option leading to successful wellbore logging operations.
The expected temperature plays a crucial role in deciding on the optimum tools to be utilized in the logging program. Static or near-static temperature data from offset wells is evaluated to provide an estimate of the expected downhole temperature while drilling. Circulating temperatures, however, can be quite different and are usually lower than the static temperature in vertical wells, in high angle deep wells the temperature increase is subjective to drilling friction and might increase beyond the static temperature. Temperature evaluation in real time for different logging passes provides a key input for selecting the optimum tools to be used. Temperature build-up is time-dependent and in high-temperature regimes, temperature monitoring and projection becomes more critical for avoiding downhole tool failures or temperature stress. Integration of advanced cuttings analysis with LWD provides a solution for evaluating the lithology, porosity, fluid composition, and wellbore stability in real time while drilling high temperature wells.
Temperature monitoring for each hole section and for multiple passes has been used for selecting the right tool rating and contingency plan based on the expected temperature. Variations in temperature gradients and temperature build-up rates have been observed in drilling and circulating temperatures, as well as differences between vertical and horizonal wells. In horizontal wells, the friction causing by drillpipe interaction with the formation has sometimes been seen to drive drilling temperatures higher than static temperatures. X-ray fluorescence (XRF) and X-ray diffraction (XRD) advanced cuttings analyses have been integrated with the downhole measurements to provide a comprehensive formation-evaluation workflow. Natural gamma ray spectroscopy (NGS) from cuttings or Gamma ray logs derived from elemental analysis can be used for depth matching and have served as an alternative measurement in cases where LWD tools could not be used in extreme high temperatures.
This study introduces a customized workflow for evaluating high-temperature wells through monitoring the temperature gradient, the circulating to near-static difference, and alternative surface cuttings solutions to provide a detailed formation-evaluation program.
Co-author/s:
Noor Albasheer, Petroleum Engineer, Saudi Aramco.
Mohamed Fouda, Geoscience Advisor, Halliburton.
Ahmed Taher, Geoscience Manager, Halliburton.
The expected temperature plays a crucial role in deciding on the optimum tools to be utilized in the logging program. Static or near-static temperature data from offset wells is evaluated to provide an estimate of the expected downhole temperature while drilling. Circulating temperatures, however, can be quite different and are usually lower than the static temperature in vertical wells, in high angle deep wells the temperature increase is subjective to drilling friction and might increase beyond the static temperature. Temperature evaluation in real time for different logging passes provides a key input for selecting the optimum tools to be used. Temperature build-up is time-dependent and in high-temperature regimes, temperature monitoring and projection becomes more critical for avoiding downhole tool failures or temperature stress. Integration of advanced cuttings analysis with LWD provides a solution for evaluating the lithology, porosity, fluid composition, and wellbore stability in real time while drilling high temperature wells.
Temperature monitoring for each hole section and for multiple passes has been used for selecting the right tool rating and contingency plan based on the expected temperature. Variations in temperature gradients and temperature build-up rates have been observed in drilling and circulating temperatures, as well as differences between vertical and horizonal wells. In horizontal wells, the friction causing by drillpipe interaction with the formation has sometimes been seen to drive drilling temperatures higher than static temperatures. X-ray fluorescence (XRF) and X-ray diffraction (XRD) advanced cuttings analyses have been integrated with the downhole measurements to provide a comprehensive formation-evaluation workflow. Natural gamma ray spectroscopy (NGS) from cuttings or Gamma ray logs derived from elemental analysis can be used for depth matching and have served as an alternative measurement in cases where LWD tools could not be used in extreme high temperatures.
This study introduces a customized workflow for evaluating high-temperature wells through monitoring the temperature gradient, the circulating to near-static difference, and alternative surface cuttings solutions to provide a detailed formation-evaluation program.
Co-author/s:
Noor Albasheer, Petroleum Engineer, Saudi Aramco.
Mohamed Fouda, Geoscience Advisor, Halliburton.
Ahmed Taher, Geoscience Manager, Halliburton.
