OAR 632-010-0017: Well Records (Logs)

(1) During the drilling, redrilling, deepening, or reworking of a well (except seismic, core, or other shallow wells drilled solely for geological data), the permittee must keep a detailed and accurate record of the well and have it available at the well site for review by the department. The well record is to progressively describe the strata, water, and oil or gas (or both) encountered. All additional information collected shall be made available to the department, including but not limited to the following: pressures, test results, caving strata, casing record, perforating, chemical treatment, and other pertinent information usually recorded in the normal procedure of drilling, provided that information submitted to the department need not include findings, interpretations, or conclusions derived from such data. This shall also include, if available, formation water chemistry analysis and hydrocarbon analysis including BTU content. All well records must include the exact surface location of the well. A copy of the records must be furnished to the department within 30 days after the completion, suspension, or decommission of any well. (2) All well logging must be recorded. One digital copy and one paper copy is to be submitted to the department within 30 days after completion, suspension, or decommission. (3) A complete set of cuttings, washed and dried, and correctly labeled and identified as to depth, must be filed with the department within 30 days after completion, suspension, or decommission. Core samples, if taken, would be made available to the department 30 days after analysis is completed. (4) Well logs, electric logs, cuttings, and cores will be kept confidential by the State for a period of 2 years from the date of completion, suspension, or decommission of the well. (a) This period of time may be extended by the department for the protection of the economic interests of the permittee of the well upon written request by the permittee showing good cause in the opinion of the department. The written request must be received by the department at least 30 days before the expiration of confidentiality. The request must include a proposed length of extension and reasons for such extension. (b) A permittee may authorize the department to release records before the end of the 2-year confidentiality period by providing a written release from an officer of the company or its attorney-in-fact.