Nebraska Administrative Code › Topic - OIL AND GAS CONSERVATION COMMISSION › Title 267 - NEBRASKA OIL AND GAS CONSERVATION COMMISSION › Chapter 4 - UNDERGROUND INJECTION › Section 267-4-006 - OPERATING REQUIREMENTS FOR ENHANCED RECOVERY INJECTION AND DISPOSAL WELLS

Current through June 17, 2024
006.01 Initial Requirements
006.01A Each enhanced recovery injection well
				or disposal well shall be completed, equipped, operated and maintained in a
				manner that will prevent pollution of fresh water or damage to sources of oil
				and/or gas and will confine injected fluids to the formation or zones
				approved.
006.01B Injection of any
				substance shall be through adequate casing or casing and tubing. Annular
				injection is prohibited. Above ground extensions shall be installed in each
				annulus in the well and each injection tubing or casing. Such extensions shall
				be fitted with a cut-off valve and a one-fourth (1/4) inch female fitting to
				provide for pressure monitoring by attaching a gauge having a one-fourth (1/4)
				inch male fitting.
006.01B1 Each commercial
				facility well must be equipped with tubing and packer.
006.01C Before operating a new well drilled
				or converted for enhanced recovery injection or disposal, the casing shall be
				tested under the supervision of the Director.
006.01D For all Salt Water Disposal (SWD)
				wells, the operator shall monitor and record actual injection pressure and each
				annulus pressure at least once each week and report such monitoring
				monthly.
006.01E For all Enhanced
				Oil Recovery (EOR) wells, the operator shall monitor and record actual
				injection pressure and each annulus pressure at least once each month and
				report such monitoring monthly.
006.01F Each well or group of wells which
				inject fluids under pressure utilizing a positive displacement pump shall have
				installed both high pressure and low pressure safety switches which will shut
				down the pump in case of pressure increase over the authorized pressure or
				sudden pressure loss.
006.01G All
				commercial facility sites must be physically secured at all times. The Director
				will determine if a site is secure. The Commission recommends that sites be
				secured by either of the following:
* Complete enclosure of all wells, tanks/pits and wellhead
				  assemblies within suitable fencing; and/or
* All gates and other entry points shall be locked when the
				  facility is unattended; and/or
* Provide tamper-proof seals or locks for the "master" valve
				  on each well; and/or
* Install locking caps on all valves and connections on
				  holding tanks and headers.
006.01H An operator of a Class II commercial
				underground injection well shall submit a copy of the fluid analysis to the
				Commission at least annually.
006.01I An operator of a Class II commercial
				underground injection well shall sample and analyze the fluid injected into
				each well at sufficiently frequent time intervals to yield data representative
				of fluid characteristics, but not less than once annually.
006.01J The packer must be set inside a
				cemented interval and be set less than one hundred and fifty feet (150') above
				the top perforated interval or open hole section.