California Code of Regulations
Title 14 - Natural Resources
Division 2 - Department of Conservation
Chapter 4 - Development, Regulation, and Conservation of Oil and Gas Resources
Subchapter 2 - Environmental Protection
Article 4 - Well Stimulation Treatments
Section 1782 - General Well Stimulation Treatment Requirements

Universal Citation: 14 CA Code of Regs 1782

Current through Register 2024 Notice Reg. No. 38, September 20, 2024

(a) When a well stimulation treatment is performed, the operator shall ensure that all of the following conditions are continuously met:

(1) Casing is sufficiently cemented or otherwise anchored in the hole in order to effectively control the well at all times;

(2) Geologic and hydrologic isolation of the oil and gas formation are maintained during and following the well stimulation treatment;

(3) All potentially productive zones, zones capable of over-pressurizing the surface casing annulus, or corrosive zones be isolated and sealed off to the extent that such isolation is necessary to prevent vertical migration of fluids or gases behind the casing;

(4) All well stimulation treatment fluids are directed into the zone(s) of interest;

(5) The wellbore's mechanical integrity is tested and maintained;

(6) The well stimulation treatment fluids used are of known quantity and description for reporting and disclosure as required pursuant to this article; and

(7) The well stimulation treatment will not damage the well casing, tubing, cement, or other well equipment, or would not otherwise cause degradation of the well's mechanical integrity during the treatment process;

(8) Well breach occurring during well stimulation treatment will be reported as required in Section 1785, subdivision (d); and

(9) Well stimulation treatment operations are conducted in compliance with all applicable requirements of the Regional Water Board, the Department of Toxic Substances Control, the Air Resources Board, the Air Quality Management District or Air Pollution Control District, the Certified Unified Program Agency, and any other local agencies with jurisdiction over the location of the well stimulation activities.

(b) In addition to specific methods set forth in these regulations, to achieve the objectives of this section, the operator shall follow all applicable well construction requirements, use good engineering practices, and employ best industry standards.

(c) The operator shall terminate well stimulation treatment as soon as it is safe to do so after it determines, or is informed by the Division, that any of the conditions of subdivision (a) are not being met.

1. New section filed 12-30-2014; operative 7-1-2015 pursuant to Public Resources Code section 3161(a), as amended by SB 4, Stats. 2014, c. 313 (Register 2015, No. 1). For prior history, see Register 2014, No. 26.
2. Editorial correction of section heading and HISTORY 1 (Register 2017, No. 24).

Note: Authority cited: Sections 3013 and 3160, Public Resources Code. Reference: Sections 3106 and 3160, Public Resources Code.

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