GEOQ 150 Dual

Utilizing specialized QuartzdyneTM transducers, this dual gauge provides unmatched precision and accuracy.

GEOQ 150 Dual Downhole Quartz Gauge (Web) GEO PSI

GEOQ 150 Dual – Downhole Quartz Gauge

The GEOQ 150 Dual Gauge is an advanced digital tool designed to provide multiple points of high-quality downhole pressure and temperature data. The dual sensor design enables users to measure both internally and externally to either casing or tubing with the same gauge. Our QuartzdyneTM downhole gauges guarantee the absolute best resolution and accuracy. At GEO PSI, we only use QuartzdyneTM pressure transducers equipped with hybrid sensor circuitry which dramatically increases long-term reliability.

Quartz Accuracy

Easy-ConnectTM Cablehead

Multi-Gauge Compatible

Technical Specifications

The Absolute Best Resolution for Pressure & Temperature

Our Quartzdyne™ gauges stand out with unmatched precision. They measure pressure with an accuracy of up to ±0.015% full scale and boast a temperature accuracy of ±0.5°C. Their exceptional precision is achieved through stringent manufacturing standards and careful calibration. This renders them indispensable for crucial applications like interference testing, reservoir engineering, and high-value completions where accuracy is needed.

Available Deployment
Methods

Our GEOQ gauges can be installed
downhole in several ways whether
suspended, tubing, or casing.

Suspended

Deployment Icon (Suspended) GEO PSI

Tubing

Deployment Icon (Tubing) GEO PSI

Casing

Deployment Icon (Casing) GEO PSI

Hybrid Circuitry

Our GEOQ gauges feature a full hybrid circuit. Both the QuartzdyneTM and GEO PSI supplied PCBs are a hybrid package design which is critical for long-term, high temperature performance. This is one of the many technical advantages that makes us an industry leader in QuartzdyneTM reliability.

GEOQ Hybrid Board Example GEO PSI

Example of Hybrid Circuit

Compatible With

The GEOQ 150 Dual gauge is designed for versatility and universal compatibility. Below are a few of the common accessories that are used to complete the GEOQ monitoring system.

Real-Time Data Applications

Measurement

Products-Downhole-Gauges-Bubble-Tube-System-Measurement-Pressure-Icon-Orange-GEO-PSI

Pressure x2
(30,000 psiA)

The GEOQ 150 Dual is designed to measure pressure within available ranges between 5,000 – 30,000 psiA with extreme accuracy.

Products-Downhole-Gauges-Measurement-Temperature-Icon-Orange-GEO-PSI

Temperature x2 (150°C)

The GEOQ 150 Dual is designed to accurately measure temperature up to 150°C (302°F).

Measurement

Pressure, Temperature, & Head-Voltage

Sensor Type

QuartzdyneTM

Output

PSK Telemetry

Input Voltage Range

12-24 VDC

Current

< 20mA

Available Pressure Ranges

5,000 psiA

10,000 psiA

16,000 psiA

20,000 psiA

25,000 psiA

30,000 psiA

Pressure Accuracy

± 0.02% Full
Scale

± 0.015% Full
Scale

± 0.02% Full
Scale

± 0.02% Full
Scale

± 0.02% Full
Scale

± 0.025% Full
Scale

Pressure Resolution

<0.006 psi/
second

<0.006 psi/
second

<0.008 psi/
second

<0.008 psi/
second

<0.010 psi/
second

<0.010 psi/
second

Pressure Repeatability

<0.01% Full
Scale

<0.01% Full
Scale

<0.01% Full
Scale

<0.01% Full
Scale

<0.01% Full
Scale

<0.01% Full
Scale

Pressure Drift

<0.01% Full
Scale / year

<0.01% Full
Scale / year

<0.01% Full
Scale / year

<0.01% Full
Scale / year

<0.01% Full
Scale / year

<0.01% Full
Scale / year

Temperature Rating

150°C

Temperature Accuracy

± 0.5°C

Temperature Resolution

<0.005°C / Second

Temperature Repeatability

<0.01°C

Temperature Drift

<0.1°C / year

Construction Material

Stainless Steel 316L or Inconel 718

Overall Length

24.00” / 609.6mm

Outside Diameter

1.0” / 25.4mm

Minimum Sample Interval

0.1 Seconds

Process Connection

1/4” Autoclave HF4

Surface Communications

Modbus RS486 and 4-20mA Output (1)

Patented Easy-ConnectTM Cablehead

Yes

Leak-Proof Design

Yes

Pressure Testable Design

Yes

Field Programmable

Yes

API Spec Q1 & ISO Certified
Manufacturing

Yes

Smart Technologies

Live transmitting of: Serial No ID, and Valid Data Packets/CRC Errors

Multi-Gauge Compatible

Up to 10 sensors (In any combination of GEOP or GEOQ) on a single downhole tubing encapsulated cable (TEC) (2)

(1) via G6 Interface Card
(2) Our GEOP and GEOQ gauges feature dual pressure and temperature capabilities, each housing two sensors in a single gauge

Looking for the necessary components to build a complete fit for purpose system for your well?

Fill out this short questionnaire and one of our experienced team members will show you a solution designed to match the specific requirements of your well.

Visit this page on desktop to complete a brief questionnaire, or visit our contact page to get in touch with one of our experienced team members.

Contact Information

Provide us with the necessary contact, and location information.


 

 

Downhole Conditions

Tell us about the downhole environment present in your well.


 

Please describe the type of environment the sensors will be in.

 

 

Packer/Obstruction #1

Packer/Obstruction #2

Packer/Obstruction #3

 

Completion Data

Please provide us with as much information on your specific completion as possible.


Surface Casing

 

Production Casing

2nd Production Casing

Tubing

2nd Tubing

Liner

 

 

Open Hole

 

 

What are the major application(s) for the downhole sensor(s)?

What are your preferred wellhead exit options?

What are the surface electronics required?

 

 

 

 

 

Want to know more?

One of our team members would be happy to help.