With ethane prices remaining below 30 c/gal, making it only slightly more valuable than natural gas at Henry Hub on a Btu equivalence, most natural gas processors/producers can earn a greater profit when ethane is sold with natural gas (rejected) than when it is extracted and sold with the NGLs. How much more money you may be wondering? The answer is — it depends. Are there downstream pipeline contracts and sunk costs impacting the decision making? Are the contracted volumes on an ethane-only pipeline or a raw mix pipeline? How far away is the producing basin from the Gulf Coast market? How do all these factors come together to determine whether ethane is produced or rejected and the value created? Today, we continue our discussion of the MQQV gas processing model — this time focusing on the Value principle. This is our final blog focusing on the MQQV model and, with it, we are making it available to all Backstage Pass holders should you want to run scenarios of your own.
Prices for heavy NGLs (propane, butanes, natural gasoline) have been rising fast since the middle of 2017, but the same cannot be said for the price of ethane. For most natural gas processors/producers, low ethane prices mean that ethane continues to be worth more when sold with natural gas (rejected) than when it is extracted and sold with the other liquids. But as NGL production continues to grow, hitting a record-high 3,968 Mb/d in October 2017, and new steam crackers are just starting to come online, there is a limit to how much ethane can be left in the residue gas stream without violating dry gas pipeline Btu specifications. How do processing plant designs, gas pipeline specs and economics play into a gas processor’s decision regarding whether to extract or reject ethane? Today, we continue our discussion of RBN’s MQQV gas processing model — this time focusing on the Quantity and Quality principles.
NGL prices have been rising fast since the middle of this year, but the same cannot be said for the price of natural gas. So how does this market scenario play out for gas processors who make their money extracting NGLs from gas? It plays out pretty darn good. In Part 1 of this series, we looked at how the relationship between the price of NGLs versus natural gas can be assessed by the Frac Spread, and concluded that things are definitely looking up for gas processing economics. But we also concluded that the Frac Spread misses the impact of a few key factors, including the BTU value and composition of the inlet gas stream. So today we’ll see what it takes to incorporate those factors into our assessment and, in the process, do a deep dive into the math of gas processing to examine the relationship between volumetric capacity, gallons of NGLs per 1,000 cubic feet of natural gas (GPMs) and moles. Today, we continue our latest expedition into the wilds of gas processing.
Over the past week (Jan 13-20, 2013) the ethane-to-gas ratio has recovered slightly from 0.99 to 1.05, mostly due to a 3 cnt/gal increase in the price of purity ethane at Mont Belvieu (OPIS 24.5 cnts/gal). [See today’s Spotcheck “Ethane to Henry Hub Gas Ratio” graph. Click here if you have trouble accessing Spotcheck.] But that does not change the fact that the ethane market is still deep in ethane rejection territory. What does it mean for gas processing economics? And how do different gas streams impact NGL recoveries, ethane rejection and tailgate gas volumes. That’s what we’ll examine today.