CONTINUOUS IMPROVEMENT IN WELLBORE POSITION ACCURACY: ULTRA-EXTENDED-REACH DRILLING IN FAR EASTERN RUSSIA

Drilling ultra-extended-reach (ultra-ERD) wellbores has redefined industry standards. Operators and service companies must fully assess the accompanying risks to maximize the overall productivity of an asset. New drilling technologies, such as improved drilling fluid design and geomechanics analyses, allow wellbores to be drilled to the lateral displacement of greater than 13 km. This requires improved absolute wellbore positioning, in conjunction with reduced uncertainties. When developing these drilling technologies, the economics must be considered so as not to exponentially increase the cost per barrel of oil. The increase in infill drilling of nearby offset wellbores requires developing improved methods that reduce wellbore position uncertainty when placing the wellbore in the reservoir, in addition to avoiding collisions. The proposed geomagnetic referencing technique is suitable for the application to the Sakhalin-1 project in eastern Russia. Here there is a predominance of ultra-ERD wellbores coupled with considerable knowledge of the varying depth of the basement rock structure. This paper presents a process used for creating a geomagnetic crustal field model that can be updated to the actual survey location with the date and time for real-time application. This process can also be used in the reprocessing of legacy measurement-while-drilling (MWD) data. The application of this process significantly improves wellbore position accuracy. Read out the full story to know more: https://www.helmerichpayne.com/resources/technical-publications/continuous-improvement-in-wellbore-position-accuracy-ultra-extended-reach-drilling-in-far-eastern-russia or you can contact us 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