UST abandonment status update – Los Angeles, California

The in-place UST abandonment went well this past week with a current Terra-Petra project in the Downtown Los Angeles area. LAFD Inspector Sanchez was satisfied with the procedure. Next step in the process will be to follow through with the soil borings, sampling and testing, and the investigative results shall be compiled in the UST Closure Report to LAFD.

Approximately 558,000 underground storage tanks (USTs) nationwide store petroleum or hazardous substances. The greatest potential threat from a leaking UST is contamination of groundwater, the source of drinking water for nearly half of all Americans. EPA, states, and tribes work in partnership with industry to protect the environment and human health from potential releases.

Project directed by Dave Lucero for Terra-Petra Environmental Engineering. Here are some preliminary photos.

 

Successful Oil Well Re-Abandonment Work in Santa Fe Springs

Terra-Petra Oil Well Abandonment The end of August 2016 marked the commencement of Terra-Petra’s re-abandonment of a single oil and gas well located on a client’s property in Santa Fe Springs, California.

Terra-Petra managed all of the oil well permitting matters associated with an unspecified redevelopment of the site since March of this year — consulting with the property owner and negotiating with the Division of Oil Gas and Geothermal Resources (DOGGR) on all oil well related compliance matters in an attempt to bring the site up to current standards so that it can be redeveloped.

Terra-Petra provided a full turn-key approach to address the oil well compliance matters upon submitting the Construction Site Plan Review, wrote the well reabandonment program, filed for and received the Permit to Conduct Well Operations and currently in the process of re-abandoning the well. The well re-abandonment work typically consists of drilling out all existing cement plugs within the well all the way to depth.

Oil well re-abandonment

Once the well is cleaned out new “isolation plugs” consisting of cement are installed at varying depths to seal off different oil and gas producing zones including the upper hydrocarbon zone as well as the base of fresh water.

The cementing operations are completed with a final cement plug from 25’-35’ deep to the surface.  A steel plate is tack welded to the exterior steel casing and the last 5 digits of the API number are welded to it.

The well then must be surveyed prior to burying with latitude and longitude in a specific DOGGR approved format. Terra-Petra is anticipating a completion date of September 23, 2016. Please contact Terra-Petra for any of your oil well related needs. 

Terra-Petra Oil Well Abandonment

oil well re-abandonment

Update on Terra-Petra’s Pacific City Oil Well Abandonment Project

Joe Morelli, Fire Protection Analyst of the HBDF, and Terra-Petra's Larry Barnes consulting near an abandoned oil well trenchNearly two years after commencing environmental work on the Pacific City project in Huntington Beach, California, the site is prepared for further construction. After intensive environmental work to verify the integrity of the on-site oil and water well abandonments, all necessary permits are in place to start constructing the foundation of the approximately 190,000 sq. ft. property. Terra-Petra is proud to have taken part in such a notable development project while contributing to tremendous cost savings for the client.

In order to bring incredible value to the project, Terra-Petra came to a practical remediation plan contradictory to one which may have been reached by blindly conforming to re-abandonment codes and procedures. After a careful review of all information obtained from field explorations and well documents from the DOGGR, Larry Barnes – Terra-Petra’s Senior Petroleum Geologist – determined that a minimally intrusive remediation approach would be sufficient for the site. This approach involved shortening all wells to a depth between 6 and 10 feet below grade, recapping each well head with a circular metal plate, and installing a methane mitigation vent cone at each well head. Rather than disturbing the abandoned wells and replacing all cement plugs with costly drilling expenses, this much more non-intrusive approach was deemed more than adequate for preventing any future leaks and site contamination.

In convincing the governing agencies that is safer to leave the wells relatively undisturbed and proceeding with the aforementioned action plan, Terra-Petra was able to successfully save the client millions of dollars while simultaneously reducing their risks on this sizeable development project. With the combined expertise of the construction team Terra-Petra was able to meet the expedited construction schedule. The client is now in the process of grading the site in preparation for foundation construction. Terra-Petra will be on hand to proceed with the necessary methane gas mitigation measures on the foundation of the site for the safety of future site residents.

[PHOTO: Joe Morelli, Fire Protection Analyst of the HBDF, and  Terra-Petra's Larry Barnes consulting near an abandoned oil well trench.]

Terra-Petra helps deveolper save millions with oil well remediation plan

Excavation equipment unearthing an identified oil wellTerra-Petra’s construction division was recently contacted to prepare an Oil Well History Report of 20 oil wells located on an 18 acre site in Huntington Beach, California. In accordance with the requirements of the Huntington Beach Fire Department, Terra-Petra’s team performed a “sniff test” on the oil well heads, then followed up with appropriate necessary re-abandonment activities in order to stop any leakage and contamination. 

Photo on right: Excavation equipment unearthing an identified oil well.

See more photo highlights below.

The scope of work began with surveying and staking the location of all 20 oil wells and providing excavation equipment and labor to uncover 15 of the abandoned wells while making them safe for entry. Dave Lucero, Terra-Petra’s Senior Project Scientist, was responsible for managing all excavation/backfilling operations and overseeing the entirety of field activities.

Dave also monitored all soil stockpiles for V.O.C. emissions and dust control per the requirements of the South Coast Air Quality Management District's Rule 1166.1. With Dave's extensive field experience and expert project oversight all oil wells were located, excavated, and exposed for sniff testing.

Larry Barnes, Terra-Petra’s Senior Geologist, took charge of conducting the sniff testing of each of the 15 excavated oil wells, 5 vented oil wells, and monitoring for fugitive gas emissions at each well head per the requirements of Huntington Beach Fire Department City Spec. 422 and the California Division of Oil, Gas, and Geothermal Resources (DOGGR).

As a California Licensed Petroleum Geologist, Larry’s duties included documenting the wells’ history, the casing and liners of the wells, the type of cement used to complete the well abandonments, preparing well diagrams, and recording information on all oil/gas zones. With this comprehensive information Larry was able to provide the developer with an ongoing Oil Well History Report for the Huntington Beach site. His expert knowledge in the geological field and long-standing relationship with the DOGGR facilitate the process of determining the level of safety for structures to be built over or near the wells and the corresponding safety recommendations.

After a careful review of all information obtained from field explorations and well documents obtained from the DOGGR, Terra-Petra came to a practical remediation plan contradictory to one which may have been reached simply by conforming to re-abandonment codes and procedures. Rather than disturbing the abandoned wells and replacing all cement plugs with costly drilling expenses, it was determined that a much more non-intrusive approach would be more than adequate for preventing any future leaks and site contamination. This approach involved shortening all wells to a depth between 6 and 10 feet below grade, recapping each well head with a circular metal plate, and installing a methane mitigation vent cone at each well head. In convincing the governing agencies that is safer to leave the wells relatively undisturbed and proceeding with the aforementioned action plan, Terra-Petra has successfully saved the client millions of dollars on this notable development project.

With the combined expertise of the construction team Terra-Petra was able to meet the expedited construction schedule. The client is now prepared to proceed with the necessary gas mitigation measures for the safety of future site residents.

Photo highlights

An excavated trench revealing an abandoned oil well cap, 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

An excavated trench revealing an abandoned oil well cap.

 

 

 Terra-Petra excavation equipment compiling a soil stockpile near an abandoned oil well trench.

 

Terra-Petra excavation equipment compiling a soil stockpile near anabandoned oil well trench.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


Joe Morelli, Fire Protection Analyst of the HBDF, and Terra-Petra's Larry Barnes consulting near an abandoned oil well trench.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


 

A safe-to enter trench revealing the location of an oil well.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

An excavated cement well plug.