Caterpillar-Powered Compression For Revised D’Lo Gas Storage Project

Map courtesy of D'Lo Gas Storage LLC.

D’Lo Gas Storage LLC (DGS) has filed an amendment with the US Federal Energy Regulatory Commission (FERC) for its D’Lo Natural Gas Storage Project in Simpson and Rankin Counties, Mississippi, USA. FERC granted approval for the original D’Lo Gas Storage Project on September 6, 2012. DGS has now proposed to amend the originally certificated project design.

If approved, the D’Lo Gas Storage Project will provide about 1.2 Bcfd (33.9 x 106 m3/d) of withdrawal and 0.59 Bcfd (16.7 x 106 m3/d) of injection capacity. According to DGS, the project would help meet the growing demand for firm and interruptible high deliverability natural gas storage services to support deliveries of natural gas to widely variable electric power generation loads, and to provide services to growing local distribution companies and other markets that require natural gas service in Mississippi, and the Northeastern, mid-Atlantic, Southeastern, and Florida, USA, regions.

DGS is proposing the following amendments to the originally certificated project design:

  • Elimination of the Gulf South Interconnect Lateral and Gulf South Meter Station facilities; and
  • Relocation of Primary Source Water Wells #2 and #4 and Primary Brine Disposal Wells #2 and #4 approximately 0.4 miles (0.6 km) south of its originally proposed locations.

The revised scope of the total project includes:

  • A new compressor station with four 8000 hp (5968 kW) and one 4735 hp (3532 kW) Caterpillar gas engine driven compressors, totaling 36,735 hp (27,404 kW);
  • The solution mining of three salt dome caverns with a designed total working gas volume of 8 Bcf (226 x 106 m3) per cavern;
  • A new solution mining facility site having injection and withdrawal capacity of 4000 to 8000 gpm (15,141 to 30,283 liters-per-minute);
  • The drilling and completion of four primary and three secondary source water wells, each having a total production capability of 1000 gpm (3785 liters-per-minute);
  • The drilling and completion of four primary and one secondary brine disposal wells, each having injection capability of 1000 gpm;
  • 4 miles (6 km) of 20-in.- (508-mm)-diameter source water pipelines;
  • 4 miles of 20-inch-diameter brine disposal pipelines;
  • 0.2 miles (0.3 km) of 24-in.- (609-mm)-diameter natural gas pipeline from the compressor and solution mining facility sites to Cavern Well #3;
  • 0.4 miles of 30-in.-(762-mm)-diameter natural gas pipeline with an interconnect and meter station to Boardwalk Pipeline Company;
  • 0.8 miles (1.28 km) of 24-in.-diameter natural gas pipeline with an interconnect and meter station to Southern Natural Gas Pipeline Company;
  • 3.2 miles (5.1 km) of 30-in.- (762-mm)-diameter natural gas pipeline with an interconnect and meter station to Kinder Morgan Midcontinent Express Pipeline;
  • A new 12-in.-(304-mm)-diameter tap and interconnect and meter station to Southcross Energy.