Owner/Client
Cabot Oil & Gas
Location
Perrysville, OH
Year Completed
2019
CEC Services
- Erosion & Sedimentation Control/NPDES Permitting
- Geotechnical Engineering
- Pavement Evaluation and Rehabilitation
- Predevelopment Site Investigations
- Roadway Design
- Site Grading/Earthwork Analysis
- Slope Stability/Retaining Structure Design
- Stormwater Management/BMP Design
- Traffic Engineering
- Transportation Planning
- Ecological Risk Assessment & Land Restoration
- Risk Assessments
- Site Characterization
- Erosion & Sediment Control Design and Inspection
- Stormwater Piping and Culvert Inspections
- Water Quality & Quantity Modeling
- LiDAR Surveys—Short- and Long-Range
- Topographic Surveys
- Unmanned Aerial Services
Owner Objective
Cabot Oil & Gas (Cabot) is a leading independent producer of oil and natural gas in the United States. It sought to partner with a firm that could assist with navigating relevant regulatory and permitting hurdles in north-central Ohio. Because of CEC’s reputation within the regulatory and permitting arena in Ohio, Cabot chose CEC to act as an extension of its company on those projects.
The Kaminek T Well Pad project is situated along a township road in an agricultural farm field in Ashland County, Ohio. Directly across from the Kamenik site access is an existing picturesque horse farm. The township road that provides access to both the well pad and the horse farm consisted of four layers of chip and seal over an existing roadbed. The challenge for the CEC team was how to design a well pad site with minimal impact to the scenery while providing access to the site, maintaining existing traffic capabilities, and not compromising on road safety and integrity.
CEC Approach
Meetings with the respective county and township authorities and leaders were used to gauge the concerns of their constituents and citizens, which, in conjunction with the needs of Cabot, influenced CEC’s design of the Kamenik T Well Pad site.
The design process began with site visits and environmental assessments, where surface mapping methods, including UAV LiDAR mapping and traditional survey methods, were utilized to obtain accurate and complete surface data. As conceptual designs were underway, geotechnical and subsurface investigations took place on the proposed well pad site and township road. The investigation results were used in conjunction with calculated Equivalent Single Axle Loadings (ESAL), trip generations, and soil properties in order to develop pavement design considerations for the township road, compaction and fill specifications, and surface considerations for the well pad. Vehicle analysis was also performed to ensure the design would accommodate anticipated traffic flows and vehicle types.
After evaluation of the existing material properties of the township road and consultation with the Ashland County Engineers office, Full Depth Reclamation (FDR) was proposed. This process expedited design and construction and allowed the township road to be upgraded within the existing right-of-way, with no utility relocations.
CEC integrated the use of excess material stockpiles to be utilized as natural screening areas for the site. Large stones encountered during the site’s excavation were stockpiled in a manner conducive to wildlife habitats and drainage and stormwater design reduced stormwater runoff. The well pad minimized impact to the surrounding crop fields while providing Cabot ample space for its operational requirements.
Overall, the timeline from initial design through construction to project completion took only six months and finished nearly three weeks ahead of schedule.
