Operator : NAM Holland

Problem

To restart production of the existing low pressure wells L2-FA that have been shut-in for 2 years due to too high backpressure on the Nogat pipeline.

Transvac Ejector for Restarting Dead Gas Well

Solution

A patented Universal design Gas Ejector utilised high pressure gas from a new HP well from the L2-FB reservoir to power the Ejector to draw-in and restart the L2-FA wells and thereby boost production.

The Ejector was rated for 630 barg design pressure.

Benefits

• Extra 0.9 MMscmd of gas produced from shut-in L2-FA wells
  
  
• New Ejector internals fitted as well pressures decline to maximise production. New internals have been fitted in less than one shift.
  
  
• Recent new Ejector internals increased production of L02FA-104 well by 0.5 MMscmd. Ejector has no running costs as it utilises motive gas energy normally wasted across a choke valve
  
  
• Ejector requires no maintenance and produces no emissions
  
  
• Universal Ejector design allowed manufacture of Ejector internals to be delayed until new HP well was drilled, thereby reducing project risk.
  
  

Client Comments

“The eductor is showing excellent performance to date, generating up to 0.9mln Nm3/d of “extra gas” from the shut-in wells with a drawdown of 34bar between suction and discharge. The eductor will pay back for itself in less than a month”

“I had another look at the Eductor on L2 – brilliant technology”

Reaction of NAM operations staff:

“The eductor is working very fine!”. They were all surprised to see the production kicking in so easily.”

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