Reconfigurable Multi-Stage Gas Compressor for Condensation Control

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Solution Overview

Problem

Conventional gas lift compressors have limited fluid lift rates and are susceptible to hydrocarbon condensation issues due to fluctuating pressure and temperature conditions, particularly in HPGL applications, which affect production efficiency and operational costs.

Innovation Solution

A reconfigurable multi-stage gas compressor system with user-selectable series or parallel configurations, incorporating stepped cylinders and controlled temperature/pressure to prevent hydrocarbon condensation, allowing flexible discharge pressure adjustments and efficient gas lift operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional gas lift compressors operate at fluctuating pressure and temperature conditions, then they can adapt to varying well requirements, but hydrocarbon condensation occurs reducing production efficiency

Engineering Contradiction:
Improveadaptability to varying well requirementsVSAvoidhydrocarbon condensation
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The compressor is designed with reconfigurable multi-stage compression capabilities where stages can be dynamically adjusted between series and parallel configurations. This dynamic reconfiguration allows the system to adapt to varying well requirements while maintaining optimal pressure and temperature conditions that prevent hydrocarbon condensation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes operational parameters by adjusting the configuration of compression stages and interstage cooling. By modifying pressure and temperature parameters through reconfigurable staging, the system prevents hydrocarbon condensation while maintaining adaptability to different well conditions.

Inventive Principle:
Principle #35Parameter changes

2Ease of manufacture

If conventional gas lift compressors are designed for fixed pressure output, then manufacturing is simpler, but they cannot meet varying well requirements throughout production life

Engineering Contradiction:
Improvefixed pressure design simplicityVSAvoidability to meet varying well requirements
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The compressor is divided into multiple independent compression stages that can be individually configured. Each stage can be adjusted or reconfigured without affecting the entire system, allowing the compressor to meet varying pressure requirements while maintaining manufacturing simplicity through modular design.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The reconfigurable compressor design allows a single unit to perform multiple functions by adjusting stage configurations. The same hardware platform can deliver different pressure outputs and flow rates, eliminating the need for multiple specialized compressors while maintaining ease of manufacture through standardized components.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Object-affected harmful factors

If multi-stage compression with interstage cooling is used, then hydrocarbon condensation is prevented, but device complexity increases

Engineering Contradiction:
Improvehydrocarbon condensation preventionVSAvoidmulti-stage configuration complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The interstage cooling system is integrated into the reconfigurable multi-stage compression design, where cooling stages are dynamically activated based on the compression configuration. This dynamic integration prevents hydrocarbon condensation while managing complexity through automated control that activates cooling only when needed.

Inventive Principle:
Principle #15Dynamics

4Productivity

If compressor stages are reconfigured between series and parallel, then fluid lift rates are enhanced, but operational complexity increases

Engineering Contradiction:
Improvefluid lift ratesVSAvoidreconfiguration operation complexity
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The compressor incorporates dynamic reconfiguration capabilities that allow stages to be switched between series and parallel configurations. This dynamic adjustment enhances fluid lift rates by optimizing compression ratios and flow rates for different well conditions, while automated control systems manage the complexity of reconfiguration operations.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes operational parameters by reconfiguring compression stages between series and parallel arrangements. This parameter change optimizes pressure and flow rate outputs to enhance fluid lift rates, while control systems automate the reconfiguration process to manage operational complexity.

Inventive Principle:
Principle #35Parameter changes

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

The system enhances fluid lift rates and reduces hydrocarbon condensation, providing adaptable pressure settings to meet varying well requirements, thus optimizing production and minimizing operational issues.

Implementation Method 1

a first-stage compression cylinder configured to generate a first-stage compressed gas from an inlet gas; a second-stage compression cylinder configured to generate a second-stage compressed gas from the first-stage compressed gas

Methodology Applied
Scientific EffectCompression: Compression

Data Source

PatentUS12492695B2Reconfigurable multi-stage gas compressor
Publication Date: 2025.12.09 FLOWCO MASTERCO LLC
  • US12492695B2 patent drawing
  • US12492695B2 patent drawing
  • US12492695B2 patent drawing

AI summary

Disclosed embodiments include a reconfigurable multi-stage gas compressor having a first-stage compression cylinder, a second-stage compression cylinder, and two stepped cylinders. Each of the stepped cylinders include first and second compression cylinders. The gas flow paths through the stepped cylinders are configured in a user-selectable configuration to be in series or in parallel so that the reconfigurable multi-stage gas compressor functions as one of: a three-stage compressor, as a four-stage compressor, and as a hybrid three/four stage compressor. In first and second configurations, the system generates four stages of compression and outputs 4-stage compressed gas through a single exit port, and through dual exit ports, respectively. In a third configuration, the system outputs hot and cooled 3-stage compressed gas through first and second ports and 4-stage compressed gas through a third port. In a fourth configuration, the system outputs hot and cooled 3-stage compressed gas with no 4-stage compressed gas.