Below Grade Production

The Rise of Multi-Well Pad Drilling

Since 2006, multi-well pad drilling has been steadily on the rise with onshore oil & gas companies.  In Q3 of 2006, pad drilling made up less than 8% of all wells drilled on shore in the USA.  Only six years later that percentage increased to 58%; a very steep increase as indicated in the chart below.

Pad drilling trend

“On the Launch Pad: The Rise of Pad Drilling” Kevin Thuot. DrillingInfo.com, February 4, 2014

Pad drilling has continued to increase with onshore drilling operations because of the positive financial impact it has had on the profitability for oil & gas companies.  Fewer rig moves save time and money.  Fewer pads mean less construction costs. Also  certain equipment can be shared among multiple wells on a single pad versus having to buy individual pieces of equipment for individual wells on multiple pads.  For all of its gains pad drilling is not without its share of pains.  This is especially true with how equipment is situated on the pad with regard to safety and worker access.  Cellar Tech offers products that can help oil & gas companies overcome these problems while at the same time adding to the profitability of its customers.

Common Problems Encountered During Multi-Well Pad Drilling

 

  • Wellheads sticking out of the pad inhibit equipment placement and movement on the pad.
  • Producing wells on the pad may be shut in or T&A’d for long periods of time during SIMOPS or “return to pad” drilling. This typically results in additional expense, operational risk, and deferred production.
  • Above grade well heads are at risk of being struck and damaged while working on the pad.
  • The drilling, completions, and production groups of the same organization often have different operational goals and requirements.

 

The Cellar Tech Solution

Cellar Tech systems are used by many oil & gas companies to overcome these problems and many find that using our Containment Well Cellars opens up possibilities for process improvements that were not possible while using a traditional well cellar.  Our Containment Well Cellars can be designed so that production trees can be completely below grade or with tubing heads just below grade.  Getting production below grade means that wells can still produce while being safely covered.

Cellar Tech offers structural cover plates and bar grating systems to meet any requirement.  This includes truck traffic, heavy equipment traffic, and rig sub structure loading.  Additionally, our Containment Well Cellar walls are designed to handle rig soil side loading or surcharge loads.

Pad Drilling Below Grade Wellheads

 

The benefits of getting wellheads and production below grade are:

  • Unrestricted pad access and equipment movement.
  • Improved environmental and safety stewardship.
  • Reduces deferred production and significantly increases NPV.
  • Reduced risk of damage to assets.
  • Improved operational efficiency across all departments due to standardization.
  • Opportunities for SIMOPS that were previously impractical.

Why risk damage to equipment and injury to personal when there is a proven economical alternative?

What happens when heavy equipment comes in contact with a standard cellar: equipment falls in cellar

What happens when heavy equipment comes in contact with a Cellar Tech cellar: 
forklift on top of cellar tech cellar