| BMP ID: |
7479 |
| Title: |
Gas Well Uploading Time Optimization |
| Text: |
Options available to the producer are to either shut the well in allowing the bottom hole pressure to increase and then unload the well to the system or blow the well to the atmosphere. For either method, the liquids are removed by increasing the tubing's flow velocity, restoring the well to production. A partner has reported the time to blow down a well to the atmosphere can be optimized, reducing methane emissions and increasing profits. |
| Source Publication Name: |
Connect Casing to Vapor Recovery Unit |
| Citation Section: |
PRO Fact Sheet No. 708 |
| Citation Page: |
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| Supplemental Documents: |
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| Usage Type: |
Recommended |
| Timing: |
• Production / Operation / Maintenance
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| Oil / Gas Field: |
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| Surface Ownership: |
• Federal
• State
• Private
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| Mineral Ownership: |
• Federal
• State
• Private
|
| Primary Contact: |
Environmental Protection Agency
Ariel Rios Building, 1200 Pennsylvania Avenue, N.W.
Washington, DC 20460 United States |
| Phone: | (202) 272-0167 |
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Alt. Phone: | (202) 272-0165 |
| Fax: | |
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E-mail: | |
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| Alternate Contact: |
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| Categories: |
Air Quality and Emissions
|
| Location: |
General / Federal |
| Species: |
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| Vegetation Types: |
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| General Comments: |
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| Cost-Benefit Analysis: |
Additional revenue of $282,000 per year was realized based on a venting reduction of 94 MMcf of gas with a nominal value of $3.00 per Mcf.
Payout is less than one year. It requires some additional field and engineering time to establish optimum blowdown periods and track results. This time is justified by increased profits, reduced emissions and best practice determination. |
| BMP Efficacy: |
Reduced emissions and increased profits were realized by determining the minimum time needed to blow down the wells, developing new field protocols, training operators on the new procedures and tracking the results.
Methane is vented to the atmosphere during liquid blow down operations to restore a gas well to production. A partner reduced these emissions by 94 MMcf per year by optimizing well unloading time in two fields with a total of 800 wells. |
| Date Entered: |
2010-07-29 09:14 UTC |
| Last Updated: |
2011-07-17 13:19 UTC |
