What Is A Frac Tank?

Are you curious to know what is a frac tank? You have come to the right place as I am going to tell you everything about a frac tank in a very simple explanation. Without further discussion let’s begin to know what is a frac tank?

In the dynamic and complex world of the oil and gas industry, various equipment and infrastructure are employed to facilitate operations efficiently. One such essential component is the frac tank. Frac tanks, short for fracturing tanks, are large storage containers designed to hold and transport fluids involved in hydraulic fracturing. In this blog post, we will delve into the concept of frac tanks, their purpose, and their crucial role in the oil and gas industry.

What Is A Frac Tank?

Frac tanks are specialized storage containers used in the oil and gas industry for the storage, transportation, and temporary containment of fluids, primarily water and other liquids used in hydraulic fracturing operations. These tanks are typically large, steel-constructed rectangular or cylindrical containers with capacities ranging from a few thousand to millions of gallons. Frac tanks are designed to withstand the harsh conditions of oilfield environments and facilitate the efficient management of fluids throughout the hydraulic fracturing process.

Purpose And Functionality:

The primary purpose of frac tanks is to store and transport various fluids involved in hydraulic fracturing operations. Hydraulic fracturing, commonly known as fracking, is a technique used to extract oil and natural gas from deep underground reservoirs. It involves injecting a mixture of water, chemicals, and proppants (such as sand) into the well at high pressures, which fractures the rock formations and allows for the extraction of oil and gas.

Frac Tanks Serve Multiple Functions, Including:

  1. Fluid Storage: Frac tanks hold large volumes of water, as well as other fluids like chemicals, drilling mud, or produced water, which are vital components in the hydraulic fracturing process. These tanks provide a convenient and efficient way to store and transport fluids to and from the wellsite.
  2. Temporary Containment: During hydraulic fracturing operations, frac tanks act as temporary containment systems, collecting and holding fluids that flow back to the surface during the fracturing process. This enables proper management and disposal of the flowback fluids, ensuring environmental compliance and minimizing the risk of contamination.
  3. Fluid Mixing And Blending: Frac tanks may also be used for fluid mixing and blending operations. By combining different fluids and additives in the tanks, operators can create tailored fracturing fluids to optimize well performance and enhance the efficiency of the fracturing process.

Versatility And Applications:

Frac tanks find extensive applications in the oil and gas industry, supporting various aspects of hydraulic fracturing operations. Some key applications include:

  1. Water Storage And Supply: Frac tanks are utilized to store and transport large volumes of water, which is a crucial component for hydraulic fracturing. These tanks ensure a consistent and readily available water supply for the fracturing process, eliminating the need for frequent water deliveries.
  2. Flowback Management: Frac tanks play a vital role in collecting and managing flowback fluids, which are the fluids that return to the surface during and after the fracturing process. Proper storage and containment in frac tanks allow for efficient flowback management, enabling safe disposal or recycling of the fluids.
  3. Storage Of Chemicals And Additives: Frac tanks can store various chemicals and additives used in the hydraulic fracturing process. These tanks provide a secure and controlled environment for storing these substances, ensuring their availability when needed and minimizing the risk of leaks or spills.
  4. Emergency Response: Frac tanks can also serve as temporary storage units during emergency situations, such as oil spills or pipeline ruptures. They can hold and contain spilled or leaked fluids, preventing further environmental damage and allowing for proper cleanup and remediation.


Frac tanks are indispensable assets in the oil and gas industry, providing crucial storage, transportation, and containment solutions for fluids involved in hydraulic fracturing operations. These versatile tanks contribute to the efficient management of fluids, ensuring a steady water supply, facilitating flowback management, and supporting the safe storage of chemicals and additives. With their durability, capacity, and adaptability, frac tanks play a vital role in maintaining the productivity, efficiency, and environmental compliance of oil and gas operations.

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Why Do They Call It A Frac Tank?

A frac tank is a large piece of mobile equipment used to store bulk liquids. These tanks get their name from their popularity in the oil & gas industry for fracking liquids, but they can also be used for so much more. Frac tanks come in different sizes and designs to incorporate a wide variety of applications.

How Does A Frac Tank Work?

To fracture wells, Frac Tanks are filled with salt water, acid, or pebbled mud—which are pumped into the earth to create fractures that keep wellbores open. Though fracturing is one of their most common applications, they’re useful for any large-scale operation that requires on-site liquid storage and transportation.

How Much Water Is In A Frac Tank?

21,000 gallons

A Frac Tank is a large, movable heavy gauge steel storage tank. Typically holding up to 21,000 gallons (500 BBL), it readily provides storage for fresh water, wastewater, fuel, chemicals, fertilizers, and more.

Are Frac Tanks Pressurized?

Frac tanks may be equipped with a pressure relief valve, but the ability of the valve to relieve the pressure may be exceeded by filling the tank too quickly. We recommend you open the manway on top of the tank to allow air pressure to escape.


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