HYDRO29443

• Permit No: M1999002
• IBM Index Class Name: Hydrology
• Doc Date: 5/28/1999
• Doc Name: UIC INFO
• Media Type: D
• Archive: No

Underground Injection Control Branch Guidance No.:
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1. Annulus pressure increases and tracks injection pressure -probable tubing or packer leak;
2. Annulus pressure decreases:
a. and goes to near zero -probable casing leak;
b. stabilizes and returns to normal behavior -possible packer slip;
3. Annulus pressure is very stable regardless of injection -probable deep casing leak in well ~
light annulus liquid;
4. Annulus pressure fluctuates -probable temperature effects due to operational effects of
injectate temperature changes;
For wells with injection pressure greater than zero but less than annulus pressure
Annulus pressure increases - if [he well is deep, penetrates high pressure zones, and the
annulus liquid is light it may indicate a deep casing leak, possibly due to an increase in
injectate temperature;
Annulus pressure decreases:
a. to near zero and/or becomes very stable -probable deep casing leak in well with ligh
annulus liquid:
b. and tracks injection pressure -probable tubing leak;
c. stabilizes, and resumes normal behavior - could be a decrease in average injectate
temperature or packer slip;
3. Annulus pressure fluctuates -probable temperature effects due to operational effects of
injectate temperature changes;
For wells which inject on a vacuum
Annulus pressure decreases -could be either a casing, tubing, or packer leak;
2. Annulus pressure increases:
a. and stabilizes - if [he well is deep, penetrates high pressure zones, and the annulus lit
is light it may indicate a deep casing leak;
b. and begins to behave normally at a higher pressure -possibly due to an increase in
injectate temperature.
In the event that a loss of MI is suspected an SAPT should be performed to ensure that the well
MI. If the SAPT conFirms MI, then the operator may resume [he use of the SAMT.
ATTACHMENT 3
RADIOACTIVE TRACER SURVEY (RTS)
FOR DEMONSTRATION OF 146.8(a)(1)
A. Basis
During injection, radioactive (RA) tracers can be added [o injected liquids at a point above the
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