Replies to This Discussion

Permalink Reply by FXEF on May 7, 2010 at 15:07

Shaleeee,

Some of the wells in the Pleasant Hill area have a high content of H2S and the gas has to be treated before it can be sent to the pipeline. The allowable content is <4ppm H2S, which does not require treatment. The allowable content of CO2 can be between 2% and 3%.

Permalink Reply by Shaleeee on May 7, 2010 at 15:49

Thanks FXEF - how do they treat it - from the well or a TX plant - would they have to re-work the wells - it all sounded strange to me. Hope for the mineral owners it is a quick fix. So much more to all of this than one could ever imagine. I am sure each well is an education for the operators. Some smart people on & off of these rigs.

Permalink Reply by Barbara Ann Cobbs Shaw on May 10, 2010 at 5:34

I Do you know if the problem with the Pleasant Hill wells can be fixed. I was told it was H2S gas. How long would it take to clear up this matter. Dont understand all the things that have to be done before the well is hooked to the pipeline.

Permalink Reply by Les Bamburg on May 11, 2010 at 2:54

Shaleeee, most of the natural gas produced from the southern half of the Haynesville Shale has a CO2 and H2S content that exceeds many gas sales pipeline specifications. This just means the operator or a third party may have to install a central amine treating facility to reduce the CO2 and/or H2S content before delivering the gas to the sales pipeline. This is being done in many parts of the Haynesville Shale play right now.

Permalink Reply by Barbara Ann Cobbs Shaw on May 11, 2010 at 8:09

Thank you so much for the information. Hope it will be ok before too long.

Permalink Reply by Donna Thornton on May 11, 2010 at 8:13

Thanks, Les B for the info. Does anyone know if the Jimmy Brown well is one of these?

Permalink Reply by jr on May 11, 2010 at 23:20

All the wells where shut in around Pleasant Hill because the h2S levels was high. This is something that the operators knew they would have to deal with. Several deep wells where drilled in the late 70's in that area and it was a problem then. If the new wells continue to have high levels we may see a more shallow drill into the lower bossier and upper haynesville the h2s is present in the smackover formation which is below the haynesville. A friend of mine has a couple of wells in the EVELYN area DESOTO parish and one of them was shut in because of high levels of h2s last week.400ppm.
Imo the wells in the southern end of the play are capable of producing more and have a thicker pay zone and the operators are willing to spend the money to deal with this problem.

Permalink Reply by ken hatcher on May 12, 2010 at 3:36

Does any one know if this extends to the Noble area? Are maybe not as severe.

Permalink Reply by Gambler on May 12, 2010 at 5:45

Does anyone know which wells have been shut in because of this? i am part of a well there and have not heard anything.

Permalink Reply by PIPELINE OPERATOR on May 14, 2010 at 18:18

--H2S - (POISON GAS) WILL NOT BE ALLOWED INTO THE MAJOR INTERSTATE PIPELINES !!! MOST OF THE LARGE PIPELINE COMPANIES THAT TRANSPORT THE GAS TO MARKET HAVE BEEN , AND ARE CURRENTLY, INSTALLING ELECTRONIC MONITORS THAT WILL SLAM SHUT ( CLOSE THE VALVE !!! ) SO THAT NO H2S GAS WILL INTER THE MAIN LINES !!!! MOST OF THE HAYNESVILLE GAS CONTAINS H2S . FILTER / SCRUBBERS HAVE BEEN BUILT INTO THE WELL SITES ---- IN SIMPLIFIED TERMS , THE GAS IS BUBBLED THROUGH AMINE LIQUID WHICH CAPTURES THE H2S AND REMOVES IT IF ALL THINGS ARE ADJUSTED PROPERLY !!!! ---NOT EASY TO DO --REQUIRES CONTINUOUS MONITORING , ADJUSTMENTS , DEDICATED ON SITE PERSONEL . ( WHEN YOU SEE A RED WIND DIRECTION SOCK , IT IS THERE TO HELP WORKERS ESCAPE UPWIND SHOULD THEIR H2S MONITORS BEGIN TO WARN THEM OF POISON IN THE AIR )
H2S EATS HOLES THROUGH STEEL PIPE SIMILAR TO TERMITES IN WOOD . MANY PIPELINES HAVE BEEN ABANDONED OR REPLACED BECAUSE THE CORROSION HAS CAUSED SERIOUS LEAKS AND TOO MANY LEAKS IN NUMBER TO REPAIR !!!
THE H2S GAS HAS ALWAYS BEEN AROUND , INDUSTRY HAS NEVER FOUND A "GOOD" WAY TO CLEAN IT OUT - ESPECIALLY WHEN LARGE FLOW RATES ARE AVAILABLE !!! YEARS AGO THE SMALL WELLS COULD BE CLEANED , BUT TESTING FOR PARTS PER MILLION WAS A HIT AND MISS PROCEEDURE !!! --- TODAY --- THE SMART ELECTRONIC CONTINUOUS GAS SAMPLER WILL NOT LET THE CORROSIVE STUFF INTO THE MAIN LINES !!!!!
WHAT DOES THIS MEAN FOR HAYNESVILLE H2S GAS ???? I HAVE BEEN ASKING WHY THE PRODUCERS ARE SO CONFIDENT THE H2S WILL BE MARKETABLE ???? HOW WILL THE PRODUCERS CLEAN THE GAS OVER A CONTINUOUS LONG TERM , WHEN HISTORY SHOWS H2S A GRIMLIN THAT IS DIFFICULT TO CAGE !!!! ---- YOU ARE SEEING THE BEGINNING OF REALLITY -- NO H2S IN MY PIPELINE !!! ----(EVEN IF YOU ARE GIVING IT TO ME FREE )
THE PRODUCERS WILL ADD MORE AMINE UNITS IN SERIES !! ( WORKS FOR A LITTLE WHILE )
THEY WILL TEST CATALYST OF ALL TYPES -- SNAKE OILS -- MIRACLE FILTERS , ETC. ---REDUCED GAS FLOWS , BUT THE LITTLE H2S PARTS PER MILLION WILL CONTINUOUSLY CAUSE THE MAIN LINE VALVE TO STOP THE FLOW !!! --- NON MARKETABLE GAS ??? -- WHAT NOW ????

Permalink Reply by Les Bamburg on May 14, 2010 at 18:35

PO, as I posted above - this is not a big issue and is very common in may natural gas plays all over the US. The primary issue with Haynesville Shale production is the CO2 content exceeds many pipelines' limit of 2% as FXEF discussed above. Some of the production is also marginally above the pipeline's 4 ppm H2S limit but not of a level to be considered "poison gas". Again - not a big issue as the centralized amine plants will handle. Natural gas delivered to the interstate pipelines will be compliant and there will be no valve slamming.

Permalink Reply by Henry on May 14, 2010 at 23:37

Les,
Will you elaborate a bit more? So you seem to be saying that the gas from each well must go through the "centralized amine plant." Would this be something that each company builds for itself? Or would one company operate it, and take gas from multiple operators? How "centralized" would it be -- i.e., one per township, one per parish? (I go crazy just thinking about how many pipelines will be needed for this!)

And, where would the gas be sold? Before, or after, going through this amine plant?

If you can explain all this a bit more, I'd appreciate it.

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