# US 2014/0156194 A1 · Deviated well log curve grids workflow > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0156194 A1 - Document ID: US20140156194A1 - Status: Published application - Kind: A1 - Application number: 14/095,266 - Filed: 2013-12-03 - Published: 2014-06-05 - Earliest claimed: 2012-12-04 - Assignees: Schlumberger Technology Corporation - Inventors: Stephen Lupin; Gerald Chalupsky; Jay Vogt; Kristiaan Joseph - Web page: https://patentgrep.com/patent/US20140156194A1 ## CPC - G01V 11/002: {Details, e.g. power supply systems for logging instruments, transmitting or recording data, specially adapted for well logging, also if the prospecting method is irrelevant (means for transmitting well survey signals E21B47/12; signal transmission systems in general G08C; transmission in general H04B)} - G01V 1/325: {Transforming one representation into another} - G01V 11/00: Prospecting or detecting by methods combining techniques covered by two or more of main groups G01V1/00 - G01V9/00 - E21B 47/00: Survey of boreholes or wells (monitoring pressure or flow of drilling fluid E21B21/08) - G01V 2210/6122: Tracking reservoir changes over time, e.g. due to production - G01V: GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS (means for indicating the location of accidentally buried, e.g. snow-buried, persons A63B29/02) - E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS ## Abstract A method for displaying an exploration and production (EP) data set of a field having a subterranean formation involves obtaining well logs corresponding to deviated wells in a portion of the field, where the well logs represent measured properties of the subterranean formation, extracting a section of each well log corresponding to a horizontal leg of a deviated well, extrapolating data items in the section of each well log to generate extrapolated data items forming the EP data set, where extrapolated data items represent the measured properties combined with a corresponding spatial coordinate across the geological surface, and displaying the numerous extrapolated data items of the EP data set. ## Claims ### Claim 1 A method for displaying an exploration and production (EP) data set during an EP tool session of a field having a subterranean formation, comprising: obtaining a plurality of well logs corresponding to a plurality of deviated wells in a portion of the field, wherein the plurality of well logs represent measured properties of the subterranean formation; extracting, by a computer processor, a section of each well log of the plurality of well logs, the section corresponding to a horizontal leg of a deviated well of the plurality of deviated wells, wherein the horizontal leg is within a pre-determined depth range traversed by a geological surface in the subterranean formation; extrapolating, by the computer processor, a plurality of data items in the section of each well log to generate a plurality of extrapolated data items forming the EP data set, wherein the plurality of extrapolated data items represent the measured properties combined with a corresponding spatial coordinate across the geological surface; and displaying the plurality of extrapolated data items of the EP data set. ### Claim 2 (depends on 1) The method of claim 1, wherein extrapolating the plurality of data items comprises: converting the plurality of data items in the section of each well log into a plurality of scatter data points corresponding to the plurality of extrapolated data items; and aggregating the plurality of scatter data points for the plurality of deviated wells to generate a scatter data set, wherein the corresponding spatial coordinate is determined based on a well location, an elevation along a well path, and a recorded depth associated with the measured properties. ### Claim 3 (depends on 1) The method of claim 1, further comprising: generating, using a pre-determined gridding algorithm, a grid based on the plurality of data items in the section of each well log, wherein the grid comprises a plurality of grid points, and wherein each grid point is associated with an extrapolated data item of the plurality of extrapolated data items. ### Claim 4 (depends on 3) The method of claim 3, further comprising: generating, by the computer processor using a pre-determined modeling algorithm, a model of the geological surface based on the grid; and performing a field operation based on the model of the geological surface. ### Claim 5 (depends on 1) The method of claim 1, further comprising: receiving user specified markers from a user, wherein the horizontal leg of the deviated well is identified based on the user specified markers. ### Claim 6 (depends on 1) The method of claim 1, wherein the plurality of deviated wells penetrate the geological surface within the pre-determined depth range. ### Claim 7 (depends on 1) The method of claim 1, further comprising: displaying the plurality of extrapolated data items of the EP data set in a quality control grid with reduced resolution. ### Claim 8 A computer system for obtaining an exploration and production (EP) data set during an EP tool session of a field having a subterranean formation, comprising: a processor and memory; and an EP tool stored in the memory, executing on the processor, and comprising: an input module configured to obtain a plurality of well logs corresponding to a plurality of deviated wells in a portion of the field, wherein the plurality of well logs represent measured properties of the subterranean formation; an extraction module configured to extract a section of each well log of the plurality of well logs, the section corresponding to a horizontal leg of a deviated well of the plurality of deviated wells, wherein the horizontal leg is within a pre-determined depth range traversed by a geological surface in the subterranean formation; and an extrapolation module configured to extrapolate a plurality of data items in the section of each well log to generate a plurality of extrapolated data items forming the EP data set, wherein the plurality of extrapolated data items represent the measured properties combined with a corresponding spatial coordinate across the geological surface; and a repository configured to store the plurality of well logs and the plurality of extrapolated data items. ### Claim 9 (depends on 8) The system of claim 8, further comprising: a display device configured to display the plurality of extrapolated data items of the EP data set to a user controlling the EP tool session. ### Claim 10 (depends on 8) The system of claim 8, wherein extrapolating the plurality of data items comprises: converting the plurality of data items in the section of each well log into a plurality of scatter data points corresponding to the plurality of extrapolated data items; and aggregating the plurality of scatter data points for the plurality of deviated wells to generate a scatter data set, wherein the corresponding spatial coordinate is determined based on a well location, an elevation along a well path, and a recorded depth associated with the measured properties, and wherein the repository is further configured to store the scatter data set. ### Claim 11 (depends on 8) The system of claim 8, wherein the EP tool further comprises: a grid generator configured to generate, using a pre-determined gridding algorithm, a grid based on the plurality of data items in the section of each well log, wherein the grid comprises a plurality of grid points, and wherein each grid point is associated with an extrapolated data item, and wherein the repository is further configured to store the grid. ### Claim 12 (depends on 11) The system of claim 11, wherein the EP tool further comprises: a model generator executing on the processor and configured to generate, using a pre-determined modeling algorithm, a model of the geological surface based on the grid, wherein a field operation is performed based on the model of the geological surface, and wherein the repository is further configured to store the model of the geological surface. ### Claim 13 (depends on 8) The system of claim 8, the input module further configured to: receive user specified markers from a user, wherein the horizontal leg of the deviated well is identified based on the user specified markers. ### Claim 14 (depends on 8) The system of claim 8, wherein the plurality of deviated wells penetrate the geological surface within the pre-determined depth range. ### Claim 15 (depends on 9) The system of claim 9, the displayed device further configured to: displaying the plurality of extrapolated data items of the EP data set in a quality control grid with reduced resolution. ### Claim 16 A non-transitory computer readable medium comprising instructions for displaying an exploration and production (EP) data set during an EP tool session of a field having a subterranean formation, the instructions when executed by a computer processor comprising functionality for: obtaining a plurality of well logs corresponding to a plurality of deviated wells in a portion of the field, wherein the plurality of well logs represent measured properties of the subterranean formation; extracting a section of each well log of the plurality of well logs, the section corresponding to a horizontal leg of a deviated well of the plurality of deviated wells, wherein the horizontal leg is within a pre-determined depth range traversed by a geological surface in the subterranean formation; extrapolating a plurality of data items in the section of each well log to generate a plurality of extrapolated data items forming the EP data set, wherein the plurality of extrapolated data items represent the measured properties combined with a corresponding spatial coordinate across the geological surface; displaying the plurality of extrapolated data items of the EP data set. ### Claim 17 (depends on 16) The non-transitory computer readable medium of claim 16, wherein extrapolating the plurality of data items comprises: converting the plurality of data items in the section of each well log into a plurality of scatter data points corresponding to the plurality of extrapolated data items; and aggregating the plurality of scatter data points for the plurality of deviated wells to generate a scatter data set, wherein the corresponding spatial coordinate is determined based on a well location, an elevation along a well path, and a recorded depth associated with the measured properties. ### Claim 18 (depends on 16) The non-transitory computer readable medium of claim 16, the instructions when executed by the computer processor further comprising functionality for: generating, using a pre-determined gridding algorithm, a grid based on the plurality of data items in the section of each well log, wherein the grid comprises a plurality of grid points, and wherein each grid point is associated with an extrapolated data item. ### Claim 19 (depends on 18) The non-transitory computer readable medium of claim 18, the instructions when executed by the computer processor further comprising functionality for: generating, using a pre-determined modeling algorithm, a model of the geological surface based on the grid; and performing a field operation based on the model of the geological surface. ### Claim 20 (depends on 16) The non-transitory computer readable medium of claim 16, further comprising: wherein the plurality of deviated wells penetrate the geological surface within the pre-determined depth range.