... the range, in which escaping methane gas or mixed gases can produce gas hydrates at or near the seafloor. The depth to which gas hydrates may remain stable is defined as the base of the gas hydrate stability zone (BGHSZ). The common indicators of gas hydrates on seismic data are bottom simulating reflectors...

... carbon samples. These geochemical data can be combined with seismic data to provide a thorough overview of vertical CO2 migration ( Figure 2 ). With high resolution seismic data, locations for gas trapping, carbonate precipitation and active migration can be reviewed to provide regions to survey...

... specialist experience, a 3D visualization system has been developed to unify both the drilling monitoring and analysis process of charts, drilling trajectory, lithology, and seismic data. The Divisor system consists of a cloud platform that unifies and processes data from different sources and a digital 3D...

... Abstract Quantitative Interpretation (QI) is the commonly used name for an integrative geoscience discipline that connects seismic data with other data from a variety of different sources and different scales to allow geoscientists to derisk the subsurface. Historically, the majority...

... of seismic data. Therefore, in the development oilfield with poor seismic data quality, we use attribute modeling method to construct high-precision 3D geostress field to help analyze the wellbore stability of oilfield development wells. First, 3D structural model is created by using seismic interpretation...

..., the risk of inorganic scaling and asphaltene deposition and risks of early fluid channeling and low sweep efficiency due to the aforementioned geological complexities are challenges that need to be addressed. One of these challenges is to ensure a better seismic data for the reservoir characterization...

... Abstract The resolution of seismic data in the semideep reservoirs ranging from 1500m to 3000m is low, and reservoir prediction is difficult when well data are scarce ( Xu et al. 2005 ; Liu et al. 2018 ; Pang et al. 2012 ; Wang et al. 2017 ). The sedimentary facies of the semideep reservoirs...

... to seismic data, enabling interactivity between the neural network and the geoscientists, therefore putting geoscientists in complete control. Our methodology eliminates the burden of data preparation methodologies, because it does not require prior randomization of the seismic data like older technologies...

... deposits, over-pressured zones, or geological anomalies. Traditional seismic reflection profiling is a relatively fast and flexible method of processing seismic data to recover information on the spatial variation in facies boundaries and subsurface structure. However, the method usually does not provide...

... from low resolution seismic data is also less reliable, compounding the error resulting from predicted stratigraphic markers (horizons). Seismic interpretations with low resolution are inadequate to identify thin over-pressured zones. The paper presents an integrated workflow that maximizes...

... the geohazards assessment within the overburden section for more than 40 wells in the North Slope of Alaska. This study uses a publicly available 3D seismic data set to reproduce and share the procedures applied over proprietary data for identification of gas-related amplitude anomalies with a focus...

... placement and derisking drilling operations; 5) optimization of seismic acquisition programs in combination with conventional downhole three-component (3C) seismic tools; and 6) seismic data quality assurance resulting from measurement during the drilling process with minimum disruption (intermediate...

...OTC-29382-MS Accurate Frequency Division Inversion Based on Seismic-Well Fusion in Seismic Data Superposition Area Wenbo Gao, Mingchun Wang, and Wenxiong Chen, Tianjin Branch of CNOOC Ltd; Xin Zhou, Schlumberger; Yue Mao, Wood Mackenzie Copyright 2019, Offshore Technology Conference This paper...

... Abstract Most sands in Layer L70-L90 of P19 Oilfield are thin sands within interbedded sand and shale sets, which are below the seismic resolution of 17 m and could not be identified by seismic data. To improve development effects, the hierarchical method for fine description of thin sands...

... and, as of today, there are a few methods available that can reliably map the dynamic properties from the seismic data (stratigraphic information, P -wave velocities, amplitudes, and their attributes) into geotechnical or geomechanical properties, particularly for shallow sub-surface depth. Being able to predict...

... deposits is presented with an emphasis on low frequency exploration 3D seismic for imaging gas hydrate deposits at the base of gas hydrate stability. hydrate stability mcconnell seismic data gas hydrate deposit reservoir characterization reflector saturation sediment gas hydrate artificial...

... density upscaling profile), as this is then transferred to a probabilistic geophysical inversion, including the corresponding uncertainty propagation and. gas hydrate material property machine learning well-logging data seismic data upstream oil & gas artificial intelligence modeling...

... services play an important role in reservoir engineering, drilling and completion, and drilling management, etc., connecting various professions seamlessly. horizontal well seismic data cluster analysis offshore technology conference plan well drilling rate resistivity well trajectory...

... information gom offshore technology conference reservoir characterization surveillance annual meeting repeatability seismic data chalenski upstream oil & gas deepwater brazil Chalenski , D. , Wang , K. , Lopez , J. , Hatchell , P. , Wills , P. , Chen , Y...

... Abstract Marine seismic data is typically acquired by using towed-streamers due to their high efficiency, easy implementation, and narrow-azimuth (NAZ) acquisition geometry. This method usually results in good-quality seismic data for noncomplex geological environments and is a well-established...