LIS

Virginia Law

Administrative Code

Creating a Report: Check the sections you'd like to appear in the report, then use the "Create Report" button at the bottom of the page to generate your report. Once the report is generated you'll then have the option to download it as a pdf, print or email the report.

Virginia Administrative Code
Title 4. Conservation And Natural Resources
Agency 25. Department of Energy
Chapter 150. Virginia Gas and Oil Regulation
11/5/2024

4VAC25-150-580. Variance request to convert a vertical ventilation hole to a coalbed methane gas well.

A. An applicant may request a variance to the casing standards in 4VAC25-150-610 when the applicant desires to convert a vertical ventilation hole drilled prior to September 25, 1991, to a coalbed methane gas well. All other standards for coalbed methane gas wells shall be met. The variance request must be included in the request for a permit, and shall address the following subjects:

1. Method of wellbore completion, whether cased, open or cased/open hole;

2. Coal seams to be left uncased;

3. Mining activity currently being conducted within 750 feet of the location;

4. Depth of the water-protection string and information on how the casing was cemented; and

5. In the case of a coalbed methane gas well drilled through a coal seam from which the coal has been removed, the protection provided to prevent the escape of any gases into the mined out seam.

The production casing shall be tested to 300 psig surface pressure or the highest pressure anticipated to be placed on the casing, whichever is greater. If after 30 minutes, the pressure has dropped by 10% or more of the test pressure, corrective action shall be taken to ensure that the casing is so set and cemented that it will hold at least 90% of the test pressure for 30 minutes or more.

B. No variance to the casing standards in 4VAC25-150-610 shall be allowed for the conversion of any vertical ventilation hole drilled on or after September 25, 1991, to a coalbed methane gas well.

Statutory Authority

§§ 45.1-161.3 and 45.1-361.27 of the Code of Virginia.

Historical Notes

Derived from VR480-05-22.1 § 3.4, eff. September 25, 1991; amended, Virginia Register Volume 15, Issue 2, eff. November 11, 1998.

Website addresses provided in the Virginia Administrative Code to documents incorporated by reference are for the reader's convenience only, may not necessarily be active or current, and should not be relied upon. To ensure the information incorporated by reference is accurate, the reader is encouraged to use the source document described in the regulation.

As a service to the public, the Virginia Administrative Code is provided online by the Virginia General Assembly. We are unable to answer legal questions or respond to requests for legal advice, including application of law to specific fact. To understand and protect your legal rights, you should consult an attorney.