Site Security Diagrams for Well Pads
We refer to a Site Security diagram in general terms but typically includes the Spill Prevention Control and Counter measure (SPCC) plan for well pads. The “Spill Prevention Plan – SPCC”. This plan is required in accordance with Environmental Protection Agency (EPA’s) Clean Air Act of 1973 as amended in 1990 by the Oil Pollution Act of 1990. In the 1990’s the EPA proposed recommendations to amend the Oil Pollution Act of 1990 and the amendments were finalized in 2002. Further amendments were finalized in 2009.
A site security diagram also could be called an As-Built of the well pad depending on your terminology. Site Security in this context is not about a guard shack on-site for protection. Think about a site security diagram for this discussion more as about “what is on-site” and “where is it on-site”.
Shown below are copies of two diagrams. The diagrams reflect two different levels of detail. Please remember that the scope of work is critical in regards to the amount detail required for the different Diagrams.
The first type of site security is shown on diagram number 1. In this scenario, the well pad size, well heads, facilities and containment volumes and more attributes are listed. This is a simple scope of work but can be very beneficial to E&P with surface use agreements (SUA’s). The exact size and location of the well pad will be confirmed with the SPCC included. Compliance with the SUA will most likely be an easier task after this information is identified and confirmed.
The second type (diagram #2) of site security for well pads is the development of a detailed “Site Facility Diagram”. This diagram also includes a “SPCC Plan”. The detailed “Site Facility Plan” includes clear, precise markings of everything that is located on-site on the well pad. Such as; tank batteries with direction of flow, buried electrical lines (to avoid line strikes), well head locations, containment volumes, plus other attributes as needed. This is particularly helpful in the event of an emergency, for example an oil spill, risk mitigation, or for extensive record keeping or documentation purposes as well as for many other purposes. Additionally, the data collected can be utilized for GIS use. This type of site security or site facility diagram exceeds the EPA’s requirements for their regulation for a “Site Security Plan”.
Just remember sometimes more detailed and accurate field data is another layer of insurance, plus it may help with better planning and regulatory compliance.
Post by Parrish A. Salyers