7:30 p.m. DNR Field Update

Office of Conservation
Bayou Corne Field Update
March 11, 2013 Activities

Texas Brine Operations

Oxy 3-A Cavern Well –
Casing Pressure: 378 psi

Texas Brine Facility Vent Well to Top of Aquifer (RW 1 on Oxy 2 well pad) –
Shut in for maintenance

Texas Brine Facility Geophone Well (Between Oxy 2 & original Oxy 3 well pads) –
Ongoing monitoring for seismic activity, data available at http://folkworm.ceri.memphis.edu/heli_temp/

Texas Brine Facility Shallow Pressure Monitoring (TBC 1-3)

TBC 1 (Original Oxy 3 well pad)
Tubing Pressure: 20 psi

TBC 2 (Original Oxy 3 well pad)
Tubing Pressure: 20 psi

TBC 3 (Oxy 1 well pad)
Shut in

Sinkhole Site –
Monitoring status of sinkhole area

ORW 1 Vent Well (North of Hwy 70)–
Flaring gas at 2.16 mcf/day

ORW 2 Vent Well (North of Hwy 70)
Flaring gas at 0.69 mcf/day

ORW 4 Vent Well (South of Hwy 70) –
Flaring gas at 5.92 mcf/day

ORW 5 Vent Well (Rig Road west of sinkhole)–
Flaring gas at 18 mcf/day

ORW 6 Vent Well (Rig Road west of sinkhole)–
Flaring gas at 19.04 mcf/day

ORW 7 Vent Well (Rig Road west of sinkhole)–
Flaring gas at 0.26 mcf/day

ORW 8 Vent Well (Rig Road west of sinkhole)–
Flaring gas at 2.85 mcf/day

ORW 9 Vent Well (Rig Road west of sinkhole)–
Flaring gas at 18.37 mcf/day

ORW 11 Vent Well (Rig Road south of Hwy 70)–
Flaring gas at 2.56 mcf/day

ORW 12 Vent Well (Oxy 3 well pad) –
Shut in for maintenance

ORW 13 Vent Well (Near Oxy 9 well pad)–
Shut in for maintenance

ORW 14 Vent Well (Near Oxy 10 well pad)–
Flaring gas at 3.62 mcf/day

ORW 15 Vent Well (North of Hwy 70)–
Flaring gas at 4.94 mcf/day

ORW 16 Vent Well (Marsh area south of community)–
Flaring gas at 2.88 mcf/day

ORW 18 Vent Well (Marsh area south of community)–
Shut in – no indication of gas

ORW 22 Vent Well (Well road east of Gumbo St.)
Flaring gas at 21.57 mcf/day

ORW 23 Vent Well (Well road east of Gumbo St.) –
Flaring gas at 1.42 mcf/day

ORW 24 Vent Well (Well road east of Gumbo St.) –
Flaring gas at 1.85 mcf/day

ORW 26 Vent Well (South of Hwy 70) –
Flaring gas at 2.42 mcf/day

ORW 27 Vent Well (West of Bayou Corne) –
Shut in—no indication of gas

ORW 28 Vent Well (North of Hwy 70) –
Flaring gas at 2.61 mcf/day

ORW 29 Vent Well (North of Hwy 70) –
Flaring gas at 9.72 mcf/day

Bayou Corne Community

Bayou Corne Community Aquifer Monitoring Well

BC 2
Tubing Pressure: 54 psi
Casing Pressure: 16 psi

Other Actions in Near-Term on Office of Conservation Directives

In status updates to Office of Conservation, Texas Brine reports:

Initial sinkhole containment complete, work ongoing to complete design for permanent containment

Perforating ORW 32, completing ORW 30, preparing to drill ORWs 17, 19 and 31

75 indoor air monitors (LEL and H2S monitors) installed in 33 Bayou Corne community properties to date

Field surveying and land access for 3-D seismic ongoing, surveying is 86 percent complete, drilling is 97 percent complete – data acquisition estimated to begin March 15

Mid-to-deep aquifer monitoring wells (MRAA 1-3) – MRAA 1 (Oxy 1 well pad) screens set, ready for sampling; MRAA 2 (Oxy 2 well pad) well installed, grout is set; MRAA 3 (Oxy 3 access road) drilled to 347 feet