Analysis

Aramco’s 5 October discussion of OGCI and OGDC emphasizes reporting and verification. An operator still needs a narrower chain of evidence: locate a leak, measure its flow, repair it and measure again. A group methane-intensity target cannot establish the value recovered at one gas-well installation.

For an illustrative calculation, assume a continuous leak of 1 Mscf per hour, where Mscf means one thousand standard cubic feet. Assume repair recovers 75% of that flow, operation lasts 8,760 hours a year and gas contains 1 MMBtu per Mscf. These are chosen assumptions, not measurements or Aramco guidance. Recovered annual energy is 1 × 0.75 × 8,760 × 1 = 6,570 MMBtu.

At assumed sale values of USD 2, 3 and 4 per MMBtu, gross annual recovered-gas value is USD 13,140, 19,710 and 26,280. The chart varies price only. With an assumed USD 10,000 installed repair cost and USD 2,000 annual recurring cost, the middle case provides USD 17,710 annual contribution and a simple payback of 10,000 / 17,710 = about 0.565 years.

This payback excludes tax, discounting, transport, shutdown losses and financing; it also assumes an unchanged leak would otherwise persist all year. Intermittency, declining pressure or lack of a gas buyer reduces the benefit. Safety requirements determine whether and how work proceeds, regardless of this revenue screen.

Before investing, replace assumptions with calibrated flow measurements, gas composition and heating value, actual operating hours, a realizable delivery price and quoted repair costs. Recovered mixed-gas volume is not automatically methane mass or avoided carbon dioxide equivalent. Emissions accounting needs its own composition, baseline and verification evidence.