by rockdoc123 » Sun 26 May 2013, 11:35:29
$this->bbcode_second_pass_quote('', 'G')ary Swindell's SPE paper is very much worth reading and I urge everyone to do so. Thru October of 2012 Mr. Swindell studied many wells in the EFS and determined the average EUR of those wells studied based on decline curve methodology to be 206,800 BOE using, as Mr. Rockdoc says, a 20:1 gas to oil ratio formula. I think it probably takes 165-185,000 BO to pay a typical EFS well out, but that's a different story. Mr. Swindell is absolutely correct to use product value for gas to oil equivalents, IMO; the entire tight oil industry hangs by a thread on well economics and the ability to raise more capital to stay on the drilling treadmill. When it publishes EUR's in BOE it should do so in an honorable way, in a way that American's will understand. Dollar for dollar, apples to apples. In 2013, with LLS postings for shale oil above 100 dollars a barrel, the gas to oil ratio should actually now be about 30:1. If you produce a million a day of associated gas with your liquids that should equate to 33 BOEPD.
The shale industry however likes to use BTU equivalents for gas to oil conversions. That's historically 6:1. That's fudging the numbers to me, especially in N. Dakota where 75% of that gas gets burned off to the air and all them perrdy "BTU's" go up in smoke anyway. So, at 6:1 gas to oil equivalent rates a million a day of associated gas equates to 166 BOEPD. The Pinky Toe No. 14H, that makes 350 BOPD, now gets reported as 516 BOEPD in the press release. If you look hard that press release might say 74% of that is liquids, in real fine print, but whatzup with that? Why not just say the stinkin' well makes 350 BOPD and go to the house? Because bigger numbers means bigger EUR's, more booked reserves, the big cheese in the front office looks better...Wall Street likey and grandma likey so much she calls Merrill Lynch and buys more shares of Shale R Us.
Well first off Swindell is not correct to use that conversion for anything other than to look at a current snapshot of economic recoverable EUR. It is otherwise meaningless. And it is not just the shale industry , as you suggest, that uses the 6:1 conversion…it is a standard used by all oil companies in reporting to the SEC, OSC and it is employed by every large consulting firm I know about and by every financial banking firm that covers oil and gas. It is a standard so that you always know you can compare apples to apples. Why not use a price correction instead?…simply because price is always changing. A few years ago when natural gas was selling at $14/Mcf on the spot and oil was around $80/bbl you would have had to use a much lower conversion than 6:1 and Swindells EUR number would have been even higher than the 400 Mbbl that is present in the liquids richest part. You can be absolutely sure that in a few years time oil and gas prices will be different than they are now, hence a conversion based on price is pretty useless as a standard conversion. The Eagle Ford activity has shifted to the liquids richest part, many of the wells produce mostly oil with associated gas rather than gas with liquids. Using a different conversion factor muddies the waters here given the entire industry uses the 6:1 conversion. As a consequence someone who doesn’t understand what BOE really means and isn’t aware that Swindell is using a different conversion factor would wrongfully argue that….Oh look Cheseapeake is lying about their reserves because they say they have average EUR of around 500 MBoe and Swindell says it is only 200 MBoe when in reality given CHK is in the best part of the play (thicker and overpressured) when you use the standard conversion factor their numbers are almost identical to what Swindell came up with. The use of the 6:1 conversion has nothing to do with “bigger numbers” being published. If you bother to look at 10K’s from any company the production and reserves are reported both in barrels and MCF as well as BOE equivalent. In most press releases companies report using both BOE and bbl/MCF terminology. Here is an example from EOG which illustrates that:
$this->bbcode_second_pass_quote('', 'E')OG made strides in increasing the amount of crude oil recoverable from both its Eagle Ford and Bakken resources by testing various drilling densities and further refining completion practices. In the Eagle Ford, EOG increased the estimated recoverable potential reserves by 38 percent from
1.6 billion barrels of oil equivalent (BnBoe) to 2.2 BnBoe, net to EOG. Numerous spacing pilots across EOG's 569,000 net acres in the crude oil window point to optimal resource development on 40-acre well spacing in the east and 65 acres in the west. At current activity levels, EOG has a 12-year Eagle Ford drilling inventory.
The revised Eagle Ford reserve potential is indicative of an estimated 8 percent recovery of the estimated 26.4 net BnBoe in place on EOG's acreage. Since discovering the Eagle Ford in 2010, EOG has raised the overall estimated captured reserve potential from 900 MMBoe (million barrels of oil equivalent) to 2.2 BnBoe, net to EOG.
EOG's best Eagle Ford well to date is the Burrow Unit #2H, which had an initial production rate of
6,330 barrels of oil per day (Bopd) with 713 barrels per day (Bpd) of natural gas liquids (NGLs) and 4.1 million cubic feet per day (MMcfd) of natural gas. Offsetting the Burrow Unit #2H, the Burrow Unit #1H was completed to sales at a maximum rate of 5,424 Bopd with 600 Bpd of NGLs and 3.5 MMcfd of natural gas. Two other prolific wells, the Boothe Unit #1H and #2H, began initial production at 5,380 and 3,810 Bopd with 625 and 525 Bpd of NGLs and 3.6 and 3.0 MMcfd of natural gas, respectively. EOG has 100 percent working interest in these Gonzales County wells.
In McMullen County, southwest of EOG's Gonzales County sweet spot, the Naylor Jones Unit 59 East #1H and West #4H had initial peak production rates of
1,670 and 1,150 Bopd with 225 and 138 Bpd of NGLs and 1.3 and 0.8 MMcfd of natural gas, respectively. EOG has 100 percent working interest in these wells that were completed in early January 2013.