Treatment and Purification of Oil Gas Field Produced Water from Fracing

 

Pounds of Salts and Solids per 1 Million U S Gallons of Water Desalinated Based on ppm/tds

Brackish: 1,000ppm = 8,335.8822 Pounds of Salt

Brackish: 5,000ppm= 41,679.411 Pounds of Salt
Highly Brackish:15,000ppm = 125,038.234 Pounds of Salt
Saline: 30,000 ppm = 250,076.468 Pounds of Salt
Sea Water: 40,000 ppm = 333,435.291 Pounds of Salt
Brine: 300,000+ ppm = 2,500,764.681 Pounds of Salt

For more information email sundragonsaltfactory@yahoo.com

Phone 561 271 8131

 

Compression Brochure (pdf) Distillation Brochure (pdf)

Fracing is in the news and water contamination along with deep well injection are now hot issues in the

Maloney Process
Consulting Process and Mechanical Engineers

TREATMENT AND PURIFICATION OF GAS FIELD PRODUCED WATER

Introduction
Maloney Process has been involved in the treatment and injection of oil field brines since 1975. During that time the technology evolved from basic oil/water separation, dissolved or induced (air or gas) flotation cell, and final filtration. Today we have developed the Vapco, Mechanical Vapor Compression System to remove dissolved impurities from most water sources. Vapco’s final discharge is distilled water and reject concentrating all of the original TDS.

Based upon our initial pilot plant testing we determined that we could remove the contaminates in a two phase system.

Process Overview
Phase 1 would remove all constituents containing lighter end hydrocarbon that would respond to evaporation at 175F TO 185F. Phase 2 would address the balance of TDS present in the discharge from Phase 1. We proceeded to put our philosophy to test.

Phase 1 We took considerable safety precautions to keep the hydrocarbons under a nitrogen blanket in the distilled water receiver tank in order to address two major fears:
1Prevent fugitive emissions entering the atmosphere.
2Our main concern was disproved at least in this test run. The formation of a flammable mixture proved inconsequential for this test. Our design team suggested we give that danger detailed consideration in a larger plant and particularly in spark elimination and electrical explosion proof equipment.

The reject waste water, the feed to Vapco Phase 2, was 90% to 92% of the raw water feed. Most of the produced water at the well heads, according to the data furnished to Maloney Process, had volumes of 1000 BPD to 2200 BPD. For example, we expected reject from a 1000 BPD well to be about 900 BPD.

Phase 2 900 to 920 BPD reported to this Phase and it’s final discharge was distilled water. The reject from Phase 2 was contained all the dissolved solids originally in the produced water. Our plan was to haul away the reject, about 75 BPD or to evaporate it from a containment pond in accordance with local environmental regulations.