In-Situ Remediation Technologies Overview

In-Situ Remediation injection
BOS Remediation (Environmental In Situ Injections)

Custom Mixing, Pumping, and Delivery Systems

At Vista, we've mastered the art of injection technology, recognizing that diverse products and site conditions demand tailored solutions. Our range of pumps, boasting pressure ratings from 150 to 2000 psi and flow rates from 2 to 50 gallons per minute, ensures precise delivery every time.

Flexibility is key. Whether it's support trucks, trailers, or on-site setups, our portable mixing tanks adapt to any logistical challenge. Plus, our redesigned injection tools and methods guarantee optimal distribution, maximizing contact with contaminants – it's a Contact Sport!

With cutting-edge Direct-Push Technology (DPT), we penetrate depths up to 150 feet, even in tight soils or bedrock formations. Need hydraulic fracturing? We've got you covered with DPT or Straddle-Packer Technologies, licensed for guaranteed results.

Our seasoned team guides you through Bottom-Up or Top-Down methods, pinpointing the perfect approach for superior product contact. And for anticipated re-injection, we recommend durable permanent wells, customized to your needs.

With real-time pressure and flow monitoring, we keep a vigilant eye on performance, ensuring success below the surface. Choose Vista for precision, reliability, and unmatched expertise in injection solutions.

NEW! Clean-Inject™ Remediation System

Self-Contained Slurry Mixing and High Pressure Injection System

Our new Clean-Inject® System provides a self-contained powerful mixing and injection system for many types of powdered reagents, such as activated carbons, oxidants, and other materials that require suspended slurry and precise injection methods in order to optimize their performance.  Super sacks of reagents can be used and are pumped directly into the mixing tank eliminating unnecessary exposure to personnel and the surrounding property.

When combined with our Surgical Injection Tooling, this cost saving system allows precise placement of most slurry material at narrow depth intervals.  High pressure and high flow rate pumps can overcome formations of all types from tight clays and claystone bedrocks to loose unconsolidated sands and gravels that are common problems for other types of pumping systems typically used for slurries.  The injection tooling and methods have also been optimized to reduce surfacing, keeping material in the contaminated and saturated formation where it is needed.

With top-down injection methods, the amount of material injected can be varied by as tight as one foot intervals from the top of the contaminated interval to the bottom utilizing expensive reagents more efficiently and ensuring their effectiveness.  Combined with better Remedial Design Characterization (RDC) and best the practices, treatment placement and coverage is now optimized. Contact us for further information on Clean-Inject System Specifications.

Why would I need Hydraulic Fracturing?

Hydraulic fracturing is a proven and patented technology where combinations of slurried proppants, chemical treatments, or bio-amended solutions are injected into tight soils and bedrock under high pressures for the purpose of creating fractures.  Creation of such fractures increases permeability, enhances the distribution and contact of remedial solutions, and is used extensively for In-Situ Chemical Oxidation (ISCO), Chemical Reduction (ISCR), and Bio-Remediation (ISBR), and SVE applications.  Once created, the fractures are held open with a variety of proppants such as sand or a more porous synthetic material which also act as a host for various bacteria.
Are you having trouble reaching your clean-up levels?  Are tight soils/bedrock causing poor air sparging (AS), or are soil vapor extraction (SVE) results prohibiting closure?  Is inadequate contact and retention time between remedial fluids and contaminants slowing the closure process at your sites?  Then hydraulic fracturing may be the technology for your site.

Vista GeoScience staff was the first in the Rocky Mountain area to provide hydraulic fracturing services in the 1990s, and currently holds the only license to hydraulically emplace fractures for remediation.  Vista has world-class expertise in emplacing fractures at sites in Japan, Australia, and across North America.  Vista is experienced at injecting a wide variety of products into these fractures, including permanganates, chemical oxygen enhancers, lactates, peroxides, ZVI-slurries, EVO-emulsions, and bacteria suspensions.

Customized Fracturing Equipment & Real-Time Monitoring Systems

Different geology, contaminants, and treatment solutions require a wide variety of fracturing and proppant injection system design.  Depending on these variables, Vista implements various fracture techniques, and utilizes progressive cavity pumps, piston pumps, diaphragm pumps, and mixing systems.

Vista offers real-time monitoring during the creation of each fracture.  Our system allows the engineer the ability to map and control propagation of the fracture while simultaneously plotting the fracture position with time.  This is especially critical when fractures are emplaced underneath residential/commercial sites and where determination of effective ROIs is necessary for full-scale remedial designs and regulatory concurrence.

 

Environmental Remediation Support Injections

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Vista GeoScience Capability Statement