Schlumberger Technology Corporation

Services Petroliers Schlumberger

Geoquest Systems B.v.

Jimmy Klinger

Randolph E F Pepper

Agnes Dubois

Martin Neumaier

Thomas Laverne

Christian Westlye Larsen

Amadeus Wieczorek

Gui Fen Xi

Methods, systems, and computer-readable media for processing seismic data. The method includes receiving a plurality of seismic traces representing a subterranean domain, and receiving an implicit stratigraphic model of at least a portion of the subterranean domain. The method also includes selecting an iso-value in the implicit stratigraphic model, and defining, using a processor, a geologically-consistent interval in the implicit stratigraphic model based at least partially on a position of the iso-value in the implicit stratigraphic model. The method further includes calculating one or more attributes of the plurality of seismic traces in the interval.

Three-dimensional, stratigraphically-consistent seismic attributes

A method () can include receiving implicit functions values for a mesh that represents a geologic environment that includes intersecting faults defined by fault patches (); assigning states to the fault patches (); revising the implicit function values based at least in part on the assigned states to provide revised implicit function values (); and outputting a structural model of the geologic environment based at least in part on the revised implicit function values ().

Geologic structural model generation

A method () for attributing a systems tract to a geological environment, including computing () a shelf break for a geologic environment based at least in part on implicit function values associated with the geologic environment; identifying () sea level variations with respect to geological time for the shelf break; and assigning () at least one systems tract to the geologic environment based at least in part on the sea level variations.

Assignment of systems tracts

A method, apparatus, and program product may model a subsurface formation by computing an iso-surface for an iso-value from a three-dimensional stratigraphic function () for a volume of interest in the subsurface formation, computing first and second strike traces () following a topography of the computed iso-surface on respective first and second sides of a fault () in the volume of interest, extracting seismic data () along the first and second strike traces, correlating the extracted seismic data along the first and second strike traces, and computing a fault displacement vector (C) for the fault from the correlated extracted seismic data along the first and second strike traces.

Generation of fault displacement vector and/or fault damage zone in subsurface formation using stratigraphic function

A method can include receiving a node-based mesh that represents a geologic environment and a structural feature in the geologic environment; defining a node-based parameter space for structural uncertainty of nodes that represent the structural feature in the geologic environment; defining a hull with respect to nodes of a portion of the mesh where the hull encompasses at least a portion of nodes that represent the structural feature; for a system of equations, imposing boundary conditions on the nodes of the hull and on the at least a portion of the nodes that represent the structural feature; solving the system of equations for a displacement field; and generating a structural uncertainty realization of the node-based mesh based at least in part on the displacement field.

Representing structural uncertainty in a mesh representing a geological environment

Example embodiments of the present disclosure include one or more of a method, computing device, computer-readable medium, and system for creating a heightmap based on at least a portion of seismic data, rendering the heightmap, and illuminating at least a portion of the rendered heightmap.

Interpretation and feature detection in a seismic volume using bump mapping and lighting

A method for modeling a subterranean formation of a field, including receiving a structural model and restoring geological layers thereof to create boundary conditions each associated with a corresponding geological layer, and iteratively modeling each geological layer by alternatively applying a petroleum system model (PSM) and a geomechanical model (GMM) to a first geological layer while exchanging data between the PSM and GMM for convergence prior to applying the PSM and the GMM to a second geological layer.

Model-consistent structural restoration for geomechanical and petroleum systems modeling

A method for performing seismic interpretation of a subterranean formation by enabling dual-domain interpretation of seismic features in the present day depth domain and simultaneously in a structurally restored 'mapped' seismic domain. Specifically, seismic interpretation is performed on structurally restored seismic volumes while concurrently viewing the interpretation results in the structural domain. This increases the interpretation confidence by improved correlation of structural deformed events to their pre-structurally deformed geometry. The method includes the ability to progressively remove structural deformation from the seismic volume, corresponding to moving back in geologic time. The interpretation can be performed in either domain (present-day structure or structurally restored to a defined geologic event), and the interpretation will be mapped to any other computed geologic age or present structural age.

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Stavanger, Norway

Jimmy Klinger