... to an incorrect reconstruction of subsurface formations. However, nearly all existing studies have neglected the dielectric effects when performing the inversion for ultra-deep electromagnetic logging-while-drilling (LWD) measurements. To complement the current research, this paper intends to explore how...

... unpredictably, increasing water cut and eventually killing the horizontal. Ultra Deep Directional Electromagnetic (EM) Logging While Drilling (LWD) tools provide the measurements to identify and map these water zones, improving reservoir management and design optimal well placement. 1D & 2D EM inversion...

... Accurate inversion of directional electromagnetic logging-while-drilling (LWD) measurements plays an essential role in geosteering, a technique to actively adjust the borehole position on the fly to reach geological targets. In this paper, a new scheme based on Supervised Descent Method (SDM...

... SUMMARY We present an application of the two-and-half dimensional (2.5D) multiplicative-regularized Gauss-Newton inversion method for the interpretation of the directional resistivity measurements [electromagnetic logging-while-drilling (LWD) measurements]. In this work, an inversion algorithm...

... artificial intelligence frequency annual meeting new data matrix electromagnetic inversion drilling data dikun yang haber data assimilation drilling measurement logging while drilling transmitter mesh real time system conductivity inversion forward problem seg seg international...

... Abstract This paper discusses the development of interpretation base in case of high-frequency electromagnetic logging-while-drilling (LWD) data acquired from deviated and horizontal boreholes. The aim of the work is to analyze the capability of revealing thinly bedded intervals as potentially...

... Abstract The deep electromagnetic logging-while-drilling technology has continuously progressed during the last decade thanks to the added value it brings in helping to take real-time critical decisions. In 2008, Eni applied the first generation of directional resistivity tools to maximize...

... Abstract The first Electromagnetic-Logging While Drilling (EM-LWD) Triple Combo operation with the Extended Range set-up was successfully completed in Saudi Arabia. The 6–1/8 inch horizontal section of the well was underbalanced drilled (UBD) from 8,109 feet to 11,189 feet in one run...

... developed Directional Electromagnetic logging while drilling tool (D-EM) was used together with a fully rotated point-the-bit 3D rotary steerable system (RSS) to achieve proactive geosteering. The LWD tool was able to detect resistivity contrasts in any direction up to 5 m from the wellbore. In the first...

... array. Electromagnetic radiation propagates considerable distances into resistive reservoir rocks and fluids, enabling electromagnetic logging-while-drilling instruments to detect such boundaries and estimate their orientation and distances in space relative to the wellbore. Images constructed from...

.... Electromagnetic radiation propagates considerable distances into resistive reservoir rocks and fluids, enabling electromagnetic logging-while-drilling instruments to detect such boundaries and estimate their orientation and distances in space relative to the wellbore. Images constructed from a combination...

..., the only well control was from three vertical exploration wells and two directional offset wells. An advance distance-to-boundary well placement technique using azimuthal deep directional electromagnetic logging-while-drilling (LWD) technology was applied to overcome these challenges and to enhance...

... uncertainty based on reservoir characterization. These models are used as reference during proactive trajectory adjustments and model update when landing in alignment with advance distance-to-boundary well placement technique that utlilizes azimuthal deep directional electromagnetic logging-while-drilling...

... directional electromagnetic logging-while-drilling measurements brings opportunities in imaging complex formations around the wellbore. In this context, basing the inversions on an assumption of a layered medium is not always sufficient to decouple geometrical effects in complex formation scenarios. Rather...

... downhole-data; however, it is not same for EMT, which allows data collection regardless of the mud pumps. Electromagnetic Logging While Drilling (LWD) technology was deployed in Triple Combo operation and 6-1/8 inch of horizontal section of well was drilled underbalance successfully from 8019 feet...

.... , Clegg , N. , Aki , A. , Diab , E. , Pandey , V. , Mansoori , M. , Seddik , A. I. and Reddy , R. , 2020 . Identification & Mapping of Water Slumping Fronts by Ultra-Deep Electromagnetic Logging While Drilling Technology In Lower Cretaceous Reservoirs Of Adnoc Onshore...

... Fidelity Real-time Imaging with Electromagnetic Logging-While-Drilling Measurements." IEEE Transactions on Computational Imaging 3 ( 2 ): 369 - 378 . Thiel , Michael , Michael Bower , and Dzevat Omeragic . 2018 . "2D Reservoir Imaging Using Deep Directional Resistivity Measurements...

... to optimize geosteering decision making. A new logging while drilling technology, developed by Schlumberger, based on directional electromagnetic resistivity measurements was applied in a horizontal well, recently drilled by Pluspetrol Norte in Peru. The service delivered directional resistivity measurement...