LOCAL LAYER GEOMETRY ENGINE WITH WORK ZONE GENERATED FROM BUFFER DEFINED RELATIVE TO A WELLBORE TRAJECTORY

摘要

A method, apparatus, and program product utilize a buffer defined relative to a wellbore trajectory to generate a work zone around a wellbore for use in connection with formation modeling. In some embodiments, for example, a closed curve such as a non-rectangular, polygonal work zone may be defined around a wellbore based upon a buffer that extends generally transverse to the trajectory of a length of a wellbore a predetermined distance. In addition, boundaries may be defined in a work zone to effectively split the work zone into multiple closed curves or polygons in response to user editing, e.g., to create one or more subsurface layers in the work zone. In such instances, points defining a subsurface layer may be shared by adjacent layers such that editing of such points will affect each of the layers sharing such points.

主权项

1. A computer-implemented method of modeling a subsurface formation using sensor data collected along a wellbore extending through the subsurface formation, the method comprising:
determining a buffer along a length of the wellbore, the buffer defined by a closed curve surrounding the length of the wellbore; generating a work zone from the determined buffer for display on a computer display; visualizing a region of the subsurface formation along the length of the wellbore by populating the work zone using sensor data collected along the length of the wellbore; visualizing boundaries between a plurality of layers in the region of the subsurface formation in the work zone; and building a computer model of the region of the subsurface formation based upon positions of the boundaries visualized in the work zone.