Environment

We’re taking big steps to reduce our footprint

Respect for and preserving the environment remains a cornerstone of our business, culture, and growth strategy. From subsea deployments to the Sahara desert, from geothermal rigs to the factory floor, we’re pushing the boundaries. Together, we’re developing next-generation solutions and working ethically across applications, manufacturing, and internally to address tomorrow’s sustainability challenges today.

REDUCING GREEN HOUSE GAS (GHG) EMISSIONS IN OIL AND GAS OPERATIONS

At Welltec, we continue to develop innovative solutions and technologies to optimize our clients’ production and reduce their environmental impact.

Our most significant contribution lies in ensuring the consumption of less energy by optimizing the oil and gas extraction process. As such, our technologies focus on reducing the 15% of total carbon footprint of the oil and gas industry, that is associated with the extraction process. 

Reducing O&G industry “Carbon Footprint in Operations” is very much increasingly in operator focus. Welltec technologies have key role to play in this GHG reduction drive.

GHG Emissions

Eliminate GHG/methane emissions resulting from SAP

Sustained Annulus Pressure (SAP) is a major source of GHG emissions arising from oil and gas production. SAP is estimated to affect 40-60% of oil and gas wells globally. A particular concern is methane emissions, as these have a powerful negative climate effect approximately 50-70 times that of CO2. It is estimated that methane is the single largest source of indirect green house gas emissions from global oil and gas production. 

Welltec Completion technology offers opportunities to eliminate or vastly reduce SAP in oil and gas wells by using the WAB product range. Global deployment track record shows so far that 40% of deployments aim to eliminate SAP. Success rate is 90% defined as SAP completely eliminated, remaining 10% still have SAP although at a lower rate.  

Sources: The IEA (methane tracker), SPE papers, Welltec track record.

Methane Emissions IEA

Reduce GHG emissions from cementing operations

Welltec technologies eliminate or reduce the need for cementing operations. This drives GHG emission reduction through two dimensions.

1. Operating time is hereby reduced by 10 - 15% offering equivalent reduction in rig-time. Consequently reducing the GHG footprint.

2. Other environmental aspects of cementless completion. 

  • Minimizing the weight of rig supply boats burning fuel
  • Decreasing risks of cement spills in open water
  • Reducing cement clean-out in rig piping systems
  • Eliminating clean-out of contaminated tanks and pits
  • Cutting the need to ship contaminated water ashore

Welltec's first deployment of a cementless completion occurred in the Republic of Congo in early 2019. The deployment was deemed a success, and since then multiple repeat deployments are taking place in both injector and producer wells. 

 

Reduce GHG emissions in Interventions

Over the last 20 years it has become an accepted industry standard that e-line based interventions in horizontal wells has a much lighter carbon footprint than the competing technologies, such as snubbing and coil tubing. 

In cases where field infrastructure doesn't allow for gas to be captured and feasibly transported for consumption, flaring of gas is needed if coil tubing intervention is chosen. Self-evidently, such filed flaring of gas results in significant GHG emissions. 

Welltec @ renewable energy

Even with the challenges of expense, high temperatures, and well depth, we’re confident in the potential of geothermal energy. By developing a range of solutions designed for the industry, we’re enabling our clients to extend asset life, access, and flow control for the most reliable and renewable energy resources worldwide.

REDUCING GREEN HOUSE GAS EMISSIONS IN WELLTEC OPERATIONS

MANUFACTURING A SMALLER FOOTPRINT

Securing Waste Materials

At our manufacturing facilities in Allerød and Esbjerg, Denmark, we’re investing in more sustainable initiatives, with successful results. By recycling 100% of our scrap metals, machine oils and securing other waste materials, we continue to shrink our environmental footprint.

  • 230 kg partly cured epoxy waste
  • 230 kg organic chemical waste     
  • 60 kg isopropyl alcohol    

Raw Materials & Metals Recycling

By weight, we recycle nearly 100% of leftover ferrous and non-ferrous metals from our manufacturing—copper wiring, print boards, cutting tools, metal cuttings, and scrap that would otherwise go into a landfill. And nearly all of it will be used for fuel to produce electricity. Overall, we’re reducing both greenhouse gas emissions and the burden of extracting more natural, raw materials.

  • 2019    16,438 KG  (3 months)
  • 2018    80,119 KG
  • 2017    29,050 KG

Oil & Fluid Recycling

Since 2017, we delivered over 67,000 tons of oil for recycling. At each facility, we ensure that all fluids, lubricants, oils, and cooling fluids used in manufacturing are collected, stored, and then transported safely. Then it is re-refined into new oil, processed into fuel oils, or used as raw materials for the petroleum industry.

  • 57,050l of halogen-free cutting oil emulsions and solutions
  • 5,000l aqueous wash water   
  •  4,455l mineral, non-chlorinated engine, gear, and lubricating oils

Energy Efficiency

From 2016 to 2018, we increased the efficiency of our energy usage. In 2018 alone, swarf time totaled 129,000 hours, resulting in more output with less consumption. For 2019 and beyond, we are on track to more than double the efficiency of energy usage per hour.

DRIVING ENERGY-EFFICIENT FROM THE INSIDE OUT

With ongoing investments in sustainability programs at our Allerød and Esbjerg facilities’, we’re always assessing our local and global responsibilities—from recycling to clean power and energy efficiency to tracking and reporting our progress.

Minimizing Energy Consumption

 2017/2018

  • New, more efficient boiler to save energy
  • Modern heat exchangers to preserve energy, cleaner air
  • 70% of light bulbs converted to low-energy LED
  • IT systems revamped for consuming low energy
  • Supplementing gas heat for lower CO2 emissions
  • Purchasing clean power from wind energy
  • Rain collected for local community drinking water

 

2017/2018

Recycled Electricity Waste 

  • 56,518 kg combustibles  
  • 22,650 kg sortable recyclables
  • 1,647 corrugated cardboard  
  • 225 kg paper  
  • 460 iron and metal
  • 7840 wood  
  • 1960 electrical products 

STAY WELL CONNECTED WITH WELLTEC

Find out how we’re pushing boundaries for oil, gas, and geothermal applications worldwide.

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SUSTAINABILITY SUCCESS STORIES

Every day, we’re transforming how the industry constructs, maintains, and sustains well operations worldwide. Our next-generation technology and WAB Solutions Portfolio deliver sustainable advantages proven to reduce the environmental footprint in the field.

WELLTEC DEPLOYS THE WORLD’S FIRST CEMENTLESS COMPLETION

We deployed the first truly cementless completion in the Republic of Congo in Q2, 2019, using the Welltec® Annular Isolation (WAI®). With its various metal expandable packers, WAI provides long length, open hole zonal isolation to replace traditional cement, delivering significant environmental and efficiency gains.

IMPACT

  • Reduced transportation and diesel use
  • WAI® saved 198 metric tonnes of CO2
  • Required fewer experts on the rig
  • Avoided over 10,000 working hours
  • Minimized cement contamination
READ MORE

A MAJOR REDUCTION IN THE OVERALL FOOTPRINT OF WELL INTERVENTIONS

A client in Gabon encountered issues with debris in one of their wells in a remote part of this West African country. Welltec® quickly mobilized its team with a Well Cleaner® Power Suction Tool (PST) and e-line Well Tractor® and delivered a low carbon and physical footprint intervention in an environmentally sensitive area.

IMPACT

  • Removed 2700 lbs of debris
  • Reduced lifting operations, time and cost
  • Minimized footprint, land clearance, platform space
  • Required only two intervention experts
  • Deployed 10 tonnes of equipment vs. 300
READ MORE