Specifications include, but are not limited to: This project includes the development of the well locations, plugging the orphan wells, decommissioning and removal of abandoned production elements where present, and restoration of areas disturbed as part of the plugging and abandonment process. ; HYDROGEN SULFIDE: 11.1 Safety: A. The Contractor must provide the appropriate equipment, on-site, to properly detect and abate any H2S emitted from the well. If the Contractor does not have the appropriate equipment to properly detect and abate any H2S emitted from the well, they will utilize an appropriate party to provide these services.; B. The Contractor will shut-in the well each night after the plugging operations have ceased, unless otherwise instructed by the Division. The Contractor will continue this process until the plugging operations are complete and there are no further signs of a gas release.; 11.2 Cement: A. The Contractor will use Class A cement to plug wells known to produce hydrogen sulfide. ; CASING: The Division reserves the right to require the removal and or placement of any tubing, casing, or liners deemed necessary to properly plug and abandon the well. If a string of casing that would normally be pulled cannot be removed, the Contractor may be required to log the well and perforate the casing, in accordance with the Division’s instructions, so that cement can be circulated behind the casing.; The Contractor shall run an operational string of casing when caving of the well prevents clean out to depth required in the scope of work.; WELL OBSTRUCTION ASSESSMENT: If an obstruction is encountered in the well bore that prevents the Contractor from reaching total depth, the Contractor will attempt to identify/assess the nature of the obstruction and attempt to remove any obstruction deemed an impediment to the plugging operation. The Contractor will supply impression blocks as part of their normal rig equipment.; PLUGGED WELL IDENTIFICATION: In compliance with Ohio Administrative Code 1501:9-11-10, a steel plate, a minimum of ¼-inch thick, shall be tack welded on top of all plugged wells. The well’s permit number and “ODNR” shall be welded on the plate in numbers/letters as large as practical. Letters shall have a minimum relief of 1/8-inch.; Phase I: 1) Contact the Ohio Utility Protection Service and the Ohio Oil & Gas Producers Underground Protection Service.; 2) Coordinate with the Orphan Well Inspector and the local authorities for the mobilization of equipment over the roads and bridges to the site as applicable.; 3) Verify with the Orphan Well Inspector that the pre-construction staking (i.e. Construction Work Limits) has been completed by the Division. The pre-construction staking must be completed prior to mobilization.; Phase II: 1) Mobilize all necessary equipment to the site and develop the site access as shown on the Drawing Plan Set.; 2) Implement site safety and secondary containment as described in the Detailed Specifications.; 3) Install perimeter sediment controls as required by the Division.; 4) Prepare the well for plugging as described in the Detailed Specifications, “Well Head Control.”; 5) Upon successful installation and approval of the wellhead and establishment of well control, the Contractor shall begin to plug the well as described in the Plugging Plan and Detailed Specifications, “Well Preparation & Plugging.”; 6) No sooner than three (3) business days after placing the uppermost plug, the Division will inspect the well at surface to determine if any additional plugging work shall be required at that time. If additional work is not needed the Contractor shall cut the casing as defined in the Plugging Plan.; 7) The Contractor shall set the plugged well identification as outlined in the General Specifications and Ohio Administrative Code 1501-9-11-10.; Phase III: 1) Within three (3) working days after Division has determined the plugging operations are completed, the Contractor shall remove all well and well plugging-related equipment, fluids, and cuttings from the site. The Contractor shall also excavate and remove all contaminated soils present onsite if present.; 2) Within fourteen (14) days after the completion of the plugging operations, the Contractor shall resoil as applicable, final grade, disc, fertilize, seed, and mulch all disturbed areas. If work cannot be complete due to the season or weather conditions, the site shall be winterized per the General Specifications, Part 9 Erosion and Sediment Control and the site restoration shall be scheduled for completion.; 3) All reclamation shall be finished to an equal or better condition than what existed prior to construction. The Division shall give the final approval for the restoration of the site.
