... measurements have provided advanced possibilities for mapping complex reservoir structures (Bondarenko et al., 2021). The real-time inversion of UDAR LWD data has proven to be pivotal in optimizing landing and drilling long horizontal sections to increase net pay for production, reduce drilling risk...

... ahead of bit in a vertical well. In: First EAGE Workshop on Pre-Salt Reservoir: from Exploration to Production. 5-6 December 2019, Rio de Janeiro, Brazil. ACKNOWLEDGEMENTS The authors thank Equinor for supporting the ultra-deep resistivity LWD field deployment. The authors also thank Baker Hughes...

..., a UDAR array, and a logging while drilling (LWD) penta-combo bottomhole assembly (BHA). This advanced BHA drilled 2,208 ft MD, landing at 75° inclination in the reservoir. While dogleg severity (DLS) was minimized to less than 4° per 100 ft, UDAR reached over 40 ft TVD look-around measurements...

.... geology sedimentary rock lwd geologist rock type well logging reservoir characterization log analysis trajectory drilling data acquisition misfit clastic rock logging while drilling drilling measurement inversion injectite sensitivity instrument austin resolution sandstone injectite...

... carbonate rock geologist structural geology inversion drilling data acquisition rock type log analysis logging while drilling drilling measurement sedimentary rock lwd well logging reservoir characterization th annual logging symposium investigation resolution wellbore...

... A novel workflow is presented where logging-whiledrilling downhole fluid analysis (LWD-DFA) data is combined with surface mud logging to identify and quantify asphaltene distribution in the development phase of a North Sea field known to have complex fluid variations and compartmentalization. Data from...

.... drilling operation geologist geology lwd artificial intelligence drilling measurement logging while drilling drilling data acquisition real time system wellbore th annual logging symposium trajectory dimension sensitivity reconstruction accuracy well logging reservoir characterization...

...SPWLA 65th Annual Logging Symposium, May 18-22, 2024 DOI: 10.30632/SPWLA-2024-0023 ENHANCED LWD QUADRUPOLE SHEAR PROCESSING PROVIDED RELIABLE SHEAR FOR RESERVOIR CHARACTERIZATION: A CASE STUDY FROM DEEPWATER GULF OF MEXICO Lei Wu, Alisa Kukharchuk, Baker Hughes, Gary Ostroff, Brian LeCompte, Murphy...

.... This paper presents the unique integration of multi-dimensional 3D UDAR data with other LWD technologies especially high-definition resistivity image that helped build a holistic understanding of a reservoir with a long history of production. Precise mapping of the water coning and fingered profile by 3D...

...SPWLA 65th Annual Logging Symposium, May 18-22, 2024 DOI: 10.30632/SPWLA-2024-0093 DIELECTRIC PERMITTIVITY FROM LWD ELECTROMAGNETIC MEASUREMENTS- METHODS COMPARISON AND RESULTS VALIDATION Salah Al-Ofi and Jun Zhang, Baker Hughes, and Shouxiang Mark Ma, Saudi Aramco Copyright 2024, held jointly...

... geologist artificial intelligence lwd geology well logging drilling data acquisition shear slowness log analysis machine learning spwla-2024-0078 drilling measurement th annual logging symposium logging while drilling annual logging symposium logging symposium algorithm mlaqi...

... of critical geosteering decision points along the planned well path. geologist structural geology drilling operation lwd artificial intelligence drilling measurement economic geology spwla 65 modeling reservoir simulation logging while drilling drilling data acquisition geological...

... ABSTRACT Ultra-deep electromagnetic (EM) logging-while-drilling (LWD) tools have been widely used in geosteering and geomapping. The ability to detect formation information within the depth range of several meters to tens of meters can effectively optimize the well trajectory and improve...

...SPWLA 65th Annual Logging Symposium, May 18-22, 2024 DOI: 10.30632/SPWLA-2024-0109 A FAST FORWARD MODELING METHOD FOR GAMMA LWD USING 1D EQUIVALENT INTEGRAL IN HIGH INCLINATION OR HORIZONTAL WELLS Cairui Shao and Zhiqiang Ma, China University of Petroleum (East China), Miantao Yu, China Oilfield...

...-while-drilling (LWD) or measurements-while-drilling (MWD) tools to enhance the detection depth. The transmitter and receivers are equipped with tilted antennas, which allow for comprehensive directional and 3D characterization of the resistivity tensor at each transmitter-receiver interval. Operating...

... representation, both in the vertical and lateral plane. Thus, even with the most accurate predrill geological model, drilling a safe geometric well requires its placement hundreds of feet away from prognosed faults. Previous generations of ultradeep azimuthal resistivity (UDAR) logging-while-drilling (LWD...

..., ohm-m Regularization parameter Observed measurements Simulated measurements Unknown parameters Data weighting matrix Model weighting matrix ABBREVIATIONS 3D 1D 0D EM LWD CPU UDAR R1 THL TVD MD Three-Dimensional One-Dimensional Zero-Dimensional Electromagnetic Logging While Drilling Central Processing...

... to compare the inversion performance between the two 1D inversion approaches. This model, proposed and evaluated by Standardization of LWD Deep Azimuthal Resistivity Services (SDAR), was based on realistic formation geologies, serving as a robust benchmark model (Antonsen et al., 2022a; Davydycheva et al...

... ABSTRACT Propagation resistivity (PR) measurements have been the established method for deriving subsurface formation resistivity during logging-while-drilling (LWD) operations for more than 30 years. PR is based on measured attenuation (AT) and phase difference (PD) from the combination...

... study is to present an integrated workflow using real-time advanced logging-while-drilling (LWD) data and surface measurement interpretations to understand the basement facies architecture. This approach has the potential to facilitate wellbore placement decisions and optimize completion design within...