Random Note: A Whiting Well Testing CO2 Injection

Random update on this well:

NDIC File No: 24779     API No: 33-061-02383-00-00
Well Type: ST     Well Status: A     Status Date: 8/16/2013     Wellbore type: Directional
Location: NWNE 12-153-92    
Current Operator: WHITING OIL AND GAS CORPORATION
Current Well Name: SIRP 31-12
Elevation(s): 2355 KB   2329 GR   2329 GL     Total Depth: 10709     Field: SANISH
Spud Date(s):  4/13/2013
Casing String(s): 9.625" 2326'   7" 10709'  
Completion Data
   Pool: BAKKEN     Status: PCI     Date: 1/13/2014
   Pool: THREE FORKS     Perfs: 10231-10340     Comp: 8/16/2013     Status: SI     Date: 4/13/2013

From the well file report, attachment 7:

The purpose of the injection project is to determine whether a gas can be injected into the matrix portion of the Bakken formation. It is not to determine production responses (positive or negative) but rather to determine whether the matrix of the formation will allow gas to be injected. A total of 10 mmcf of CO2 will be injected down the tubing. The CO2 will change phase from a liquid at the surface to a gas phase downhole. We anticipate an injection rate of approximately 500 mcfd, which will require injection for approximately 20 days.

The injection packer will be set above the "B" zone at approximately 10,180 feet..... and a RBP will be set below the Bakken perforations (at approximately 10,300 feet) to isolate the injection interval from Three Forks perforations.

Since this is just a temporary injection test, no permanent equipment will be installed on location. A service company will provide the pumping equipment to inject the liquid CO2.

The offset production wells will be sampled at regular one-day intervals and processed for CO2 concentrations at the Robinson Lake Gas plant, in the Sanish field. Should CO2 be detected at levels 50% greater than background sampling, the injection will cease. If CO2 is not detected by the end of the planned injection volume, the will be shut in for a few days, and then flowed back to sample and monitor the properties of the oil. any oil recovered will be re-injected back into the well.