GWPC Directional Survey Upload Application Implementation Considerations

Transcription

1 GWPC Directional Survey Upload Application Implementation Considerations RBDMS Annual Training Conference, Lido Beach, Florida April 3, 2019 Jim Milne, Dan Jarvis, Scott Bland

2 Presentation Outline Overview of Directional Survey Project EDD Template Upload Application Workflow Considerations GIS Output Legacy Data

3 Overview of Directional Survey Project GWPC initiated the project in June of GWPC designed RBDMS database tables to store directional data. GWPC developed a standard EDD for data submittal. Blue Marble Geographics created stored procedures to calculate lat-longs of survey points and write data point and line features as spatial data types to SQL Server tables. OnCore Consulting developed the directional data upload application. The application is being implemented at the California DOGGR and the Utah DOGM.

4 General Data Flow EDD Upload Application GIS Output SQL Server Tables

5 Directional Survey to EDD Directional Survey EDD Operators or Directional Survey Companies populate the EDD template with directional survey data.

6 Electronic Data Deliverable (EDD) Header Info Required ID Field Required Field ** ** **Consider requiring TRUE NorthReference for all surveys, and only allow NAD 83 for SurfaceLatLongDatum to simplify review and data storage.

7 Electronic Data Deliverable (EDD) Survey Data ** **Consider requiring the note Bottomhole or Projected Bottomhole in the DirectionalPointNote field. This will allow all bottomhole points to be pulled from the database and mapped. Mapping bottomhole locations as points allows the user to easily see which borehole line is associated with which well. The well record hyperlink can also be attached to the bottomhole points.

8 EDD Absolute Requirements for Stored Procedure ** Header Information Required for Stored Procedure to Work APINumber CitingType SurveySurfaceElevation NorthReference SurfaceLatitude SurfaceLongitude SurfaceLatLongDatum ** When NorthReference = Grid ifgridconvergence, and ifgridscalefactor are also required. Survey Data Required for Stored Procedure to Work MeasuredDepth TrueVerticalDepth NorthOffset EastOffset

9 Upload Application Interface for Operators and/or State staff to upload directional survey EDD spreadsheets. Currently designed for upload of one survey at a time. Rules engine included for error flagging. Executes Blue Marble Geographic stored procedure to calculate lat-longs of survey points and create point and line features in DB. Web-based, automated process, to get directional surveys into RBDMS as tabular data and as spatial data (i.e. line and point features). Allows for viewing of all surveys in the DB. Hands-on training for this Application follows presentation.

10 SQL-Server Tables DirectionalSurveyHeaderImport DirectionalSurveyDataImport ** ** Tables store EDD imported data along with calculated fields (green) and spatial fields (red). **The spatial fields will store the coordinate system EPSG codes as SRID integers. Storing multiple SRIDs in a single spatial field may complicate GIS output capabilities.

11 Workflow - Operator Submittals Completed EDD Directional Survey PDF The EDD does not take the place of the PDF. Option 1: Operator submits EDD and PDF as attachments to an Online Form --- State staff uploads EDD to populate database and create mapping data. Option 2: Operator logs onto Online Forms --- Clicks link to RBDMS Directional Survey Upload Page --- Uploads EDD file to Online Grid --- Corrects any errors flagged in grid --- Submits final directional data grid --- Operator includes PDF and possibly the EDD spreadsheet as attachments to E-Form.

12 Workflow Operator Submittals Option 2 is probably the best option and some work has been completed to support this option for the Utah DOGM. Online Form APD or Completion Rpt Web-App Home Page Upload EDD File Page Operator gets to the home page by logging into Online Forms and clicking hyperlink Operator navigates to a completed EDD on their computer and uploads it through this page. A blank EDD template can also be downloaded from this page.

13 Workflow Error Corrections Errors are flagged and corrected by Operators through these online grids. Note: Errors that are corrected here will not automatically be be corrected on the original EDD spreadsheet.

14 Workflow Staff Review of Data EDD Three Sources of the same data SURVEY PDF Elevation 4977 ft Ground + 25 ft (KB) = 5002 Surface Lat-Long Database Record

15 Workflow Staff Review of GIS Lines Planned Wellbores (Green Lines) Are wells in legal locations and not too close to unit boundaries? Is the horizontal well density consistent with the spacing Order? Are horizontal wells far enough away from each other and other older vertical wells (red dots)? AsDrilled Wellbores (Purple Lines) Did the AsDrilled wells get drilled as planned (compare purple and green lines); if not, are the AsDrilled wells still in a legal location?

16 Workflow Data Flow Architecture Each State may have a slightly different approach to workflow and architecture. Some basic components are listed below. Server(s) to host Directional Survey Upload App. Forms, Workflow, or Staging database to accept Operator Submittals Method to transfer approved survey data to Main RBDMS database tables Security for logged-in users to submit directional survey data SQL-Server Views to support GIS system integration

17 GIS Output 2-D 3-D Easy to automate mapping of an entire State. All users can view and analyze features via Online Maps. GIS users can perform complex analysis of features using GIS software. In most cases, GIS staff will need to set up specific project areas (local scenes). GIS staff can publish 3-D scenes for viewing in browsers if they have advanced ESRI licenses. Other users will need 3-D viewing software such as ArcGIS Pro or Global Mapper.

18 Creating GIS Line and Point Features 1. Connect GIS software to SQL-Server Database. 2. Add horizontal well lines from the Header Import Table. 3. Add bottomhole points from Bottomhole SQL View. 4. Save Lines and Points as Shapefiles or similar. 5. Re-project lines and points to to State Coordinate system (e.g. UTM Zone 12, NAD83) 6. For 3-D displays, it is best to have x, y, and z in the same units (State Plane feet) Lines and Points from Database are Lat-Long NAD 83

19 Shapefiles are 3-D Features with Measures (Point ZM) Z = 3-D elevation property; M = Measures assigned to lines (Measured Depth)

20 Shapefile Z and M Properties Z (Elevation Values) for Directional Points M (Measured Depth Values) for Directional Lines Z Values used for 3-D Viewing M values allow for new line segments to be created based on measured depth intervals. Can be used to highlight perforation and cement intervals

21 3-D Display with Measured Depth Highlights Surface Casing Cement Production Casing Cement 3-D Display of Directional Wellbores in Global Mapper Software

22 3-D in ESRI ArcGIS Pro Can create project and publish to GIS Online or local GIS Server for sharing. Can create 3-D Buffers with 3-D Analyst Extension. Can conduct a 3-D Proximity Analysis with Built In Tool.

23 ArcGIS Pro Proximity (Near 3D) Tool In map view, these 2 wells appear to intersect each other. In 3-D View, the wells do not intersect each other. Using the Near 3-D tool, it is determined that the two wells are 71 meters apart at an elevation of -544 meters. Requires 3-D Analyst Extension

24 ArcGIS Pro Proximity (Near 3D) Tool Example Can analyze multiple wells in a 3-D Scene. In this example, the horizontal wells are compared to the directional and vertical wells. Sorted on 3D Distance, nearest well is 17 meters Requires 3-D Analyst Extension

25 Legacy Data The Hard Facts Many States will have hundreds, if not thousands, of legacy directional surveys to get into the system. There is no easy way to get these into the system. Hopefully, the legacy directional surveys have been scanned and/or exist as PDFs. These surveys could have variety of data quality and data completeness issues. It may take awhile to get caught up.

26 Legacy Data Some Ideas to Consider First Step is to identify which wells are directional wells, and use a map symbol to indicate that a surface point location is actually a directional well that hasn t been mapped yet. If you happen to have bottomhole locations, include those on your map with a straight line connecting the surface location to the bottomhole (e.g Utah). If not, a good first step might be to just capture bottomhole locations, and catch the rest of the survey up later. Review legacy PDfs and group them by potential issue with respect to creating EDDs for processing through the upload application (e.g. NAD 27 datum, grid north, missing critical data, etc). If Lat-Longs, UTM, or State Plane coordinates of the directional points are already included in the directional survey PDF, consider extracted those to GIS environment and creating these lines using GIS tools. Upload application could be modified to allow for uploads of multiple EDDs, to allow for batches to be processed when ready.

27 Legacy Data A Few Tips By using Adobe Professional, you can export to a Word Doc which will preserve columns and rows, making it easier to cut and paste to the EDD template. Adobe Professional Word Document

28 Legacy Data A Few Tips If a legacy survey is Grid North with missing Scale Factor and Convergence values, you can use conversion software to convert from the current projection to the old Grid North projection. The scale factor and convergence values are calculated in the process. In this case Survey Pocket Tools were used.

29 Don t Forget the Vertical Wells For 3-D evaluations, the vertical wells will have to be included. It not recommended to try to use the directional application to create 3-D vertical well line features. Consider using GIS software to create these lines thousands of these can be created in a short period of time this way. ArcGIS Basic with the ET GeoWizards add-on was used to create 3-D lines by converting points (surface points and bottomhole points) to lines.

30 In Summary The GWPC Directional Survey Upload Application allows States accept directional survey information as digital data to support mapping directional/horizontal wellbore lines in their GIS systems. The automated Application workflow has be designed to streamline data flow from the Operators to State databases and GIS systems. These directional/horizontal GIS features can be displayed within Online mapping systems, so that the State, Operators, the public, and other interested parties are aware of the subsurface well paths. The GIS features can also be made available for download for further analysis in GIS software. The Directional Survey Upload Application is ready to be shared with States that need this capability.

31 The Sooner the Better Colorado initiated a similar program in 2012 by requiring Operators to submit directional survey data via an EDD. 49,000 directional surveys have been mapped since then.

32 Questions?