Wet Mate Fluid Reservoir for Debris-Free Wellbore Coupling

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Solution Overview

Problem

During production, completion, stimulation, and fracturing operations, debris such as frac sand can prevent energy transfer mechanisms like wet mate connections from achieving a reliable and sealed connection due to their orientation on the low side of the wellbore, leading to interference and coupling issues.

Innovation Solution

Orienting energy transfer mechanisms, such as wet mate connections, to the high side of the wellbore, ensuring no portion is below a certain angle relative to gravity, and using orientation tools like the Workstring Orientation Tool (WOT) to align them correctly, preventing debris from interfering with coupling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If wet mate connections are oriented on the low side of the wellbore, then installation is easier, but debris interferes with coupling and prevents reliable sealed connections

Engineering Contradiction:
Improveease of installationVSAvoidconnection reliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent inverts the conventional orientation practice by positioning wet mate connections on the high side of the wellbore instead of the low side. This inversion prevents debris accumulation at the connection interface, ensuring reliable sealed connections while maintaining operational ease through proper gravitational positioning.

Inventive Principle:
Principle #13The other way round (Inversion)

2Ease of operation

If wet mate connections are oriented on the low side of the wellbore, then installation is easier, but coupling issues occur due to debris interference

Engineering Contradiction:
Improveease of installationVSAvoidcoupling complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent inverts the conventional orientation practice by positioning wet mate connections on the high side of the wellbore instead of the low side. This inversion prevents debris accumulation at the connection interface, ensuring reliable sealed connections while maintaining operational ease through proper gravitational positioning.

Inventive Principle:
Principle #13The other way round (Inversion)

3Reliability

If orientation tools like WOT are used to align wet mate connections to the high side, then connection reliability improves, but device complexity increases

Engineering Contradiction:
Improveconnection reliabilityVSAvoidequipment complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The wet mate connection system utilizes the natural gravitational field to self-position debris away from the connection interface. By orienting connections on the high side, the system leverages gravity's constant downward force to keep debris settled below, eliminating the need for active orientation tools and complex positioning equipment while maintaining high connection reliability.

Inventive Principle:
Principle #25Self-service

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 approach ensures reliable and sealed connections by keeping debris away from the energy transfer mechanisms, reducing the risk of interference and enhancing the efficiency of operations like frac packing and gravel packing.

Implementation Method 1

a volume of optical coupling fluid sufficient to allow the wet mate housing to undergo at least three decoupling/coupling sequences before running out

Methodology Applied
Scientific EffectOptical coupling: Refraction

Data Source

PatentUS12503921B2Multiple use wet mate having a fluid reservoir configured to receive a volume of coupling fluid therein
Publication Date: 2025.12.23 HALLIBURTON ENERGY SERVICES INC
  • US12503921B2 patent drawing
  • US12503921B2 patent drawing
  • US12503921B2 patent drawing

AI summary

Provided is a wet mate, a well system, and a method. The wet mate, in one aspect, includes a wet mate housing, the wet mate housing having a male wet mate connector portion or a female wet mate connector portion. The wet mate, according to this aspect, further includes a fluid reservoir located within the wet mate housing, and a volume of optical coupling fluid located within the fluid reservoir, the volume of optical coupling fluid sufficient to allow the wet mate housing to undergo at least three decoupling/coupling sequences before running out while the wet mate housing is in a substantially horizontal location.