IMPROVED TYPELOG ALIGNMENT FOR AUTOMATED GEOSTEERING USING MULTI-STAGE PENALIZED OPTIMIZATION



Automated geosteering relies on logging-while-drilling data from offset wells to make inferences about the geological formation and help guide directional drilling of the subject well.

When data from multiple offset wells are available, it is desirable to consistently combine data typelogs from these wells to better estimate the 3D geological formation around the drilling path. We develop a quantitative typelog alignment method based on a Bayesian approach, where the alignment map between pairs of typelogs are modeled as a random function with a prior distribution.

A multi-stage penalized procedure is developed that optimizes this alignment map to minimize a misfit function, while taking the prior knowledge into consideration. Read out the tech paper in detail by visiting here: https://www.helmerichpayne.com/resources/technical-publications/improved-typelog-alignment-for-automated-geosteering-using-multi-stage-penalized-optimization or you can reach out to us directly here: https://www.helmerichpayne.com/contact.

Comments

Post a Comment

Popular posts from this blog

DrillScan® Digital Solutions PRESENTS Advanced Well Engineering - Tailored software for smarter, efficient, failure-proof drilling!

Image
  HOW WE HELP We accelerate well delivery and maximize well lifespan for energy operators through physics-based modeling and drilling expertise AWE offers constant performance improvement for the client by leveraging the extensive experience of our engineering team and DrillScan® digital solutions. BitScan™ Software for auto processing, validation & export of PDC models. WellScan ® Advanced suite for quick and accurate well engineering.   LiveScan™ & REST APIs Integrated real-time solution for drilling monitoring & optimization. WHO WE ARE A century of achievement. A reputation of excellence. We are a drilling engineering and R&D team renowned for pioneering the development and implementation of industry-leading physics-based models. DRILLSCAN DIGITAL SOLUTIONS Enhance drilling engineer performance with precise digital solutions. ADVANCED WELL ENGINEERING Premium engineering ...
Read more

MAGVAR™ OMNI TECHNOLOGY

Image
  Achieve Unmatched Accuracy MagVAR™ Omni technology elevates standard surveying practices by delivering more precise wellbore trajectory and shape. By integrating our survey correction services with continuous inclination measurements, it helps ensure exceptional accuracy in both lateral and vertical positioning. This enhanced mapping provides valuable insights into the trajectory and configuration of your well to help you reach your intended geological target with confidence. A comprehensive understanding of the wellbore trajectory and shape can: ·        Facilitate strong agreement between geologic & drilling teams ·        Minimize positional errors ·        Identify tortuosity ·        Improve wellbore quality ·        Improve Geology-Drilling data ·        Reduce costly re-drills ·  ...
Read more

DRILLSCAN® SOFTWARE IDENTIFIES DRILLING DYSFUNCTION CAUSES IN COMPLEX, MULTILATERAL ERD WELL

Image
An operator in the North Sea faced a lower completion lock-up 800m above total depth (TD), followed by a stuck pipe event in an ERD multi-lateral well. In an initial effort to push the completion down to TD, all slack off weight and torque margin were used. Since no improvement was observed, the decision was made to pull-out. However, the string remained stuck and despite the rig efforts to free it, the lower completion had to be cut and left in hole. H&P’s DrillScan® technology team performed an in-depth post-analysis, reviewing all available data to identify what might have caused the lock-up event. The data provided was used to simulate the downhole conditions undergone by the completion with the DrillScan genuine stiff-string model. The results and conclusions pointed to string dysfunctions: suboptimal tripping and lubricating/ backreaming practices (BHA POOH) led to repeatedly exceeding the screens yield strength (lower completion RIH). H&P’s DrillScan software was a...
Read more