Methods and systems for borehole image forward modeling of formation properties
AssigneeHalliburton Energy Services, Inc.
InventorZhi Qin Wu
Life of this patent
Estimating the term…
Abstract
A method and system for improving borehole image forward modeling of formation properties is disclosed. An imaginary circle (106) having a plurality of bins (202) is centered at a location of interest at an axial position along the target wellbore (102). The imaginary circle is perpendicular to an axis (110) of the target wellbore and represents a region of the formation to be analyzed. A pseudo log relating to the parameter of interest at the axial position along the target wellbore is then determined. The pseudo log comprises at least a value for the parameter of interest at a desired point corresponding to one of the plurality of bins. The determined pseudo log is then visualized.
Claims17
A method of wellbore image forward modeling for analyzing a target wellbore in a formation comprising:
- centering an imaginary circle having a plurality of bins at a location of interest at an axial position along the target wellbore,
- wherein the imaginary circle is perpendicular to an axis of the target wellbore;
- and
- wherein the imaginary circle represents a region of the formation to be analyzed;
- determining a pseudo log at a desired point, wherein determining the pseudo log at the desired point comprises:
- providing a first offset well and a second offset well, wherein the first offset well and the second offset well intersect a surface corresponding to the desired point;
- determining one or more log values of a parameter of interest at a first point on the surface corresponding to the first offset well and at a second point on the surface corresponding to the second offset well;
- and
- interpolating the one or more log values of the parameter of interest at the first point and at the second point to determine the pseudo log at the desired point;
- wherein the pseudo log comprises at least a value for the parameter of interest at the desired point corresponding to one of the plurality of bins;
- and
- visualizing the determined pseudo log.
An information handling system with a non-transitory computer-readable medium containing machine readable instructions to:
- center an imaginary circle having a plurality of bins at a location of interest at an axial position along a target wellbore,
- wherein the imaginary circle is perpendicular to an axis of the target wellbore;
- and
- wherein the imaginary circle represents a region of a formation to be analyzed;
- determine a pseudo log at a desired point, wherein determining the pseudo log at the desired point comprises:
- determining one or more log values of a parameter of interest at a first point corresponding to a first offset well and at a second point corresponding to a second offset well, wherein the first offset well and the second offset well intersect a surface corresponding to the desired point and the first point and the second point are positioned on the surface;
- and
- interpolate the one or more log values of the parameter of interest at the first point and at the second point to determine the pseudo log at the desired point;
- wherein the pseudo log comprises at least a value for the parameter of interest at a desired point corresponding to one of the plurality of bins;
- and
- visualize the determined pseudo log.
A method of modeling formation property of a wellbore comprising:
- positioning an imaginary circle at a first axial position along a wellbore path traversing a formation,
- wherein the imaginary circle is substantially perpendicular to a wellbore axis of the wellbore,
- wherein the imaginary circle comprises a plurality of bins;
- calculating 3-dimensional coordinates of the plurality of bins at the first axial position;
- calculating a pseudo log for each of the plurality of bins at the first axial position, wherein calculating the pseudo log for each of the plurality of bins at the first axial position comprises:
- selecting one of the plurality of bins;
- determining one or more log values of a parameter of interest at a first point corresponding to a first offset well and at a second point corresponding to a second offset well, wherein the first point and the second point are positioned on a surface, and wherein the first offset well and the second offset well intersect the surface corresponding to the selected one of the plurality of bins;
- and
- interpolating the one or more log values of the parameter of interest at the first point and at the second point to determine the pseudo log at the selected one of the plurality of bins;
- wherein the pseudo log reflects the parameter of interest at the first axial position;
- and
- visualizing the calculated pseudo log for each of the plurality of bins at the first axial position.
Dependencies are inferred from the claim text.