Service Solutions

Below are a list of service solutions we provide;

• Cascade Waste Water System
• METS System (bio-remediation) - Soil Remediation System
• The TOF-80
• Tangent Oil Recovery System
• Surfactants/Bio Chemistry

Cascade Waste Water System

The Cascade Waste Water System is a combination of several differing technologies meshed together controlled by a fully automated PLC system to deal with surface water that is hydrocarbon and organic contaminated. The system in place will handle contaminants both solid and liquid. The system is built to recover as much as seven (7) metric tons (7.7 tons) per hour of hydrocarbon associated with contaminated surface water, in addition the system removes solvents, detergents, NORM’S (naturally occurring radioactive materials) and reducing contaminants such as sulphates, nitrates, calcium, phosphates, sodium, magnesium and chlorides, as well as solids from a maximum of one hundred (100) microns to as low as one (1) microns.

Once the contaminants have been removed then there are two options as to what is to be done with the remaining water.

1. Recycle the water back to the rig, location or facility from where the water was collected from at over 110m³/ 692 bbl per 24 hrs, requiring only up to 40 amps of power. Reducing the need for additional fresh water to be used, reducing source cost and trucking, by reusing the water, the liability of man hours trucking and generating waste streams of slightly contaminated water are reduced significantly.
2. Dispose of the water through the unit by atomization and evaporation. Borrowing technologies from the food process and plant heating industries, plus some original concepts we have an onsite disposal system that will completely deal with the onsite surface water waste stream. Water disposal rates are based on the required power consumption per m³/bbl. A single stand alone evaporation system will require 45KVA/hr per 10m³/ 62.9 bbl evaporated or approximately 220 amps of power to create the heat source required. A single evaporation package can dispose of 30 to 35m³/ 189 to 220 bbl per 24 hrs. Multiple evaporation packages can be attached to the main module of the Cascade System.

The PLC that drives the Cascade Waste Water System is a HMI (Human Machine Interface) that allows for an operator or any person from a rig/facility crew to easily turn the system on, pause or shut down the system with merely touching a digital screen. It will also alert the rig crew if there are any filters plugging and what exact filter that may be.

Applications

1. Surface water, this pertains to any water on a location that has collected from rain, melted snow and ice and or water that has been used in an application from a facility or onsite operation where water has been used for washing of equipment, lubrication or cooling of equipment and any other non production water. This also includes water on locations, road access and construction that may have been flooded due to rain, snow or spring water.
2. Location remediation and closure. Fluids recovered from the closure of new or existing locations that are in the process of being closed or re addressed for remediation. For example if a location has previously had a sump or earthen pit that has had hydrocarbon contamination, the CWWS will be able to handle the squeezed fluids and or any surface fluids to be disposed of, recovering the hydrocarbon content and reducing contaminants such as sulphate, nitrates, calcium, phosphates, sodium, magnesium and chlorides.        
3. Dewatered drilling fluids. We have been able remove excess polymers from dewatered surface mud systems so that the water can be evaporated as more importantly reused for make up water(drill water) for mud systems with no adverse effects.

 METS System (bio-remediation) - Soil Remediation System

The Matrix Enhanced Treatment System was developed for the treatment of contaminated soil. Much like the Cascade Waste Water System, the METS process is fully mobile and self propelled. Excavated soil is deposited into the hopper and is transferred in a regulated flow to the custom designed processing chamber. The soil is shredded in the processing chamber, while blending a chemical or biological treatment reagent into the soil matrix, air and moisture is also controlled in the processing chamber.

Features and Benefits

• Ability to apply a wide variety of proven chemical and biological products that are available today.
• Proper integration of reagents into the soil.
• Inconsistencies in the soil conditions and content are processed to create a homogenous, fine particle soil matrix.

1.  METS machine has a rated capacity of 40 tons/hour and operates on a 75% daily efficiency.
2. Operations run 20 hours per day and run straight through without days off.
3. Processing capacity is 20 hr x 75% x 40 tons/hr = 600 tons/day

The TOF-80

The TOF-80 is a rotary bank skimmer capable of recovering up to 100 m3 of oil per hour. Interchangeable recovery banks, removable debris screens, and a robust all aluminum construction makes this a reliable and versatile skimming system. Furthermore, it is based on an OHMSETT tested design. The types of recovery banks available for this skimmer include disc, brush, and drum. Depending on service requirements, these banks can be exchanged by hand without the use of tools. Oil is collected onto the skimmer by the rotating oleophilic recovery bank and the subsequent cleaning action of the scraper. An on board pump then transfers the recovered product into a collection vessel via a 4” hose. Both the skimmer and transfer pump are hydraulically powered and are controlled by a control panel. For power, the skimming system can be connected directly to a diesel hydraulic power pack. The system is also available with a wide range of options including a floating umbilical hose with a handling reel, a dedicated launching crane, maneuvering thrusters, and a radio remote control module.

Features and Benefits

• Pump is detachable for use in other applications via a cam-lock connection
• Pump handles solids of up to 1”
• Open skimmer design allows for easy decontamination

Tangent Oil Recovery System

The Tangent Oil Recovery System (TORS) unit will be built for order. This system is based on extended contact, low agitation washing of non soluble solids. Based on the wash system used by Thaishell in 1998 and 1999, in LanKrabu Thailand, the system is capable of removing and recovering hydrocarbons from non soluble solids such as sand, laterite, and gravel. This system is designed to do a minimum of 300m³ of solids per day, with the use of available bio chemistry TORS is capable of removing 100% of associated hydrocarbon from non soluble solids. The draw back to any wash system is if clay or soluble shale are introduced, this will create the need for a dewatering process as well, so the sand wash system would be dedicated to only non soluble solids such as the heavy carbons and sands associated with oil production. Any clay that has come into contact and needs to be processed will be handled through the METS System and bio remediated.

Surfactants/Bio Chemistry

Tangent has aligned with leading edge Earth/bio friendly chemistry developers to assist in our quest to assure that hydrocarbons are recovered with the least amount of impact on the environment. The reasons for partnering with the Bio friendly industry is to create a partnership of technologies that compliment each other. Each aspect of Tangent’s approach to the recovery of water, hydrocarbons and eco friendly disposal has to be taken into consideration.

Applications

1. Assisting the breaking oil from surface water.
2. Removal of retained oil from solid mass.
3. Cleaning of pipe and facility storage tanks and process equipment.
4. Breaking emulsions in oil sumps and process systems.
5. De-waxing of plugged wells under production.

The ability to diversify in the applications of chemistry allows for the diversity of process applications, equipment can be applied to many different processes. But without the right chemicals to work with many equipment processes fall short of their potential and efficiency.
With the support of Tangent’s partner companies we can custom fit the process to the customer’s individual requirements.