Electric Fracking Pump Layout With VFD to Cut Diesel Losses

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Solution Overview

Problem

Conventional hydraulic fracking systems rely on multiple diesel engines and transmissions, leading to increased costs, parasitic losses, noise pollution, and operational inefficiencies, requiring numerous trailers and CDL drivers, and often exceed air quality limits.

Innovation Solution

Implementing an electric-driven hydraulic fracking system with a single Variable Frequency Drive (VFD), a single shaft electric motor, and a single hydraulic pump, powered by a centralized power generation system that includes gas turbine engines or an electric utility grid, reducing the need for multiple diesel engines and transmissions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If multiple diesel engines and transmissions are used to drive hydraulic pumps, then sufficient horsepower is achieved, but operational costs and parasitic losses increase significantly

Engineering Contradiction:

ImprovehorsepowerVSAvoidparasitic losses

Core Design Contradiction:

PowerVSLoss of energy

Solution Approach 1:

The patent consolidates multiple diesel engines and transmissions into a single electric motor that drives all hydraulic pumps through a common power source, eliminating redundant mechanical components and reducing parasitic losses associated with multiple engine operations

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent replaces the mechanical diesel engine-transmission system with an electric motor system, substituting combustion-based mechanical power generation with electrical power conversion, thereby eliminating parasitic losses from multiple engine operations and transmissions

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Power

If multiple diesel engines and hydraulic pumps are positioned at the fracking site, then required horsepower is met, but the quantity of trailers and CDL drivers increases

Engineering Contradiction:

ImprovehorsepowerVSAvoidquantity of trailers

Core Design Contradiction:

PowerVSDevice complexity

Solution Approach 1:

The patent consolidates multiple hydraulic pumps onto fewer trailers by using a single electric motor to power all pumps, reducing the total number of trailers required from multiple units to just one or two, thereby simplifying logistics and reducing CDL driver requirements

Inventive Principle:

Principle #5Merging (Combining)

3Productivity

If the power rating of hydraulic pumps is increased, then productivity improves, but the power rating of diesel engines must also increase

Engineering Contradiction:

Improvepumping capacityVSAvoiddiesel engine power rating

Core Design Contradiction:

ProductivityVSPower

Solution Approach 1:

The patent replaces diesel engines with an electric motor system that can deliver the same or higher power output without the parasitic losses inherent in combustion engines, enabling increased pumping capacity without proportionally increasing prime mover power requirements

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

4Power

If numerous diesel engines are used to drive hydraulic pumps, then sufficient power is available, but noise levels and air quality violations occur

Engineering Contradiction:

Improvepower availabilityVSAvoidnoise levels

Core Design Contradiction:

PowerVSObject-affected harmful factors

Solution Approach 1:

The patent replaces noisy diesel engines with electric motors, eliminating combustion-related noise and exhaust emissions, thereby maintaining sufficient power availability while dramatically reducing noise levels and air quality impacts at the fracking site

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This system enhances operational efficiency, reduces costs, minimizes environmental impact, and allows for seamless integration with utility grids, while ensuring continuous operation and reducing the risk of sand plugging in wells.

Implementation Method 1

a single Variable Frequency Drive (VFD), a single shaft electric motor, and a single hydraulic pump positioned on a single pump trailer

Methodology Applied

Scientific EffectVariable Frequency Drive:

Data Source

PatentUS12460524B2Electric driven hydraulic fracking system

Publication Date: 2025.11.04 HALLIBURTON ENERGY SERVICES INC

AI summary

An electric driven hydraulic fracking system is disclosed. A pump configuration that includes the single VFD, the single shaft electric motor, and the single hydraulic pump that is mounted on the single pump trailer. The single VFD converts the electric power of at least 13.8 kV to a VFD rated voltage level of at least 4160V and drives the single shaft electric motor at the VFD voltage level of up to 4160V to control the operation of the single shaft electric motor and the single hydraulic pump. The single shaft electric motor drives the single hydraulic pump with the rotation at the rated RPM level of at least 750 RPM. The single hydraulic pump continuously pumps the fracking media into the well at the HP level of at least 5000 HP. The single hydraulic pump operates on a continuous duty cycle to continuously pump the fracking media at the HP level of at least 5000 HP.