Sch 4Daily well activity report

Schedule 4 — Daily well activity report

[r. 71(1)]

| 2. | The name of the instrument holder. | | 3. | The location, elevation, latitude and longitude of the well. | | 4. | The water depth at the well (if applicable). | | 5. | The drilled depth and, if the total depth was reached, the coordinates of the bottom of the well bore. | | 6. | A description of the well activity. | | 7. | A description of the work carried out. | | 8. | The lithology of underground formations penetrated. | | 9. | Details of any indication of petroleum or regulated substance. | | 10. | Treatment material losses. | | 11. | A leak‑off test or formation integrity test summary. | | 12. | The geometry of the well bore. | | 13. | The results of surveys made in the well bore. | | 14. | The estimated daily and cumulative well costs. | | 15. | The total volume and properties of treatment material used. | | 16. | The total volume and properties of produced formation material. | | 17. | The name of the drilling contractor. | | 18. | The name of the rig drilling the well. | | 19. | An hourly operational breakdown of the work carried out. | | 20. | Relevant pressure data. | | 21. | Details of chemicals or other substances kept on site for use in the well activity. | | 22. | The name and contact details of the person responsible for the well activity. | | 23. | Drilling parameters (for example, rate of penetration, pump rate or pump pressure). | | 24. | Pressure tests undertaken. |

[Schedule 4 amended: SL 2026/82 r. 148.]