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Enteq MWD System

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www.enteq.com Enteq MWD System The complete solution for directional drilling operations
Page 1: Enteq MWD System


Enteq MWD SystemThe complete solution for directional drilling operations

Page 2: Enteq MWD System

The Enteq MWD System offers a complete MWD solution with all the required components to start and sustain operations at the well-site. The combination of Enteq Drilling XXT and third party technology gives the security of very significant operational experience, high reliability and options for the best in class control and data analysis.

Advantages• Improved control and flexible management

of down-hole sensors

• Intelligent power management for maximum battery life

• Real-time and recorded shock and vibration data

• High quality data transmission and self correction to optimise drilling speed capability

• Ruggedised packaging, field proven to 175°C

• Optimised data management to exploit pulser bandwidth

• Feature rich acquisition software allowing full control of all aspects of the operation

Features• XXT Downhole electronics, drivers and


• XXT and Laversab receiver card, software and surface equipment

• Industry standard or XXT pulser system

• Industry standard Gamma tool and interface

• XXT / JAE directional sensors

• Battery modules Option of easy access kit box

• Test, assembly and running gear

• Field proven resistivity tool

Delivering technologies that allow the reach and recovery of hydrocarbons

Page 3: Enteq MWD System





Directional SensorModule

Pulser Helix& Lower End


Muleshoe Assembly


VibmonThe VIBMON monitors downhole shock and vibration in three axes. Real-time telemetry and display of downhole shock and vibration enables drillers to avoid costly downhole equipment failure and optimize ROP. Data is also recorded downhole for plotting and analysis on surface.

Directional Interface ModuleThe XXT DIM provides a flexible, intelligent solution for the acquisition, formatting and telemetry of downhole data to surface. It is a drop-in downhole Directional Interface Module providing Mud Pulse Telemetry compatible with industry standard Tensor systems.

Directional Sensor ModuleThe XXT-DS Directional Sensor, designed to XXT standards and specifications, incorporates the industry renowned JAE accelerometers and magnetometers. Incorporating XXT’s Digital Head module, the complete Directional Sensor assembly provides a temperature corrected plug-and-play solution using the most reliable aviation specification components.

Pulser Driver & DC Drive PulserThe XXT-PDEM Pulser Driver and DC Drive Pulser is a rugged field proven unit with a highly efficient and reliable brushless DC motor. The intelligent PDEM electronics optimizes telemetry rates and manages power consumption using an accelerometer flow switch. The DC motor drive gives huge battery savings and higher MTBF than comparable solenoid based units whilst being easy to service.

AccessoriesEnteq manufactures a complete range of MWD and DD accessories including everything needed to run an MWD survey. Our South Houston product centre makes everything from spearpoints to mule shoes and all of the barrels and interconnects in between. We also supply larger accessories including the kit boxes, tools racks and pipe screens.

OptionsGamma Ray Sensor

An Industry standard, natural Gamma Ray tool based around a highly ruggedized scintillation counter and photomultiplier tube. The GR data can be used in depth correlation and geostreering applications where radioactive uranium is associated with gas rich shales.

EM System

The Enteq EM telemetry system provides high-speed electromagnetic uphole data transmission. The systems can be used standalone in shallow wells or where mud pulse telemetry is not appropriate. It can also be ran in combination with a pulser to provide added data security and increase real-time data bandwidth.

Resistivity Tool

Single and Multifrequency LWD tools available in a complete range of sizes including slim hole. These field proven tools deliver true reservoir saturation data from multiple depths of investigation. The wireline log quality output has been used by many major oil all over the world. The data can also be used for geostreering applications.

Enteq MWD System

Page 4: Enteq MWD System

The Enteq surface system is based around the xxMWD/PC program suite. This PC based solution offers a unique, feature rich range of programs and utilities to cover every MWD option. Advanced capabilities such as Dynamic Sequencing save operating time and optimize data throughput. The software runs on a ruggedized Laversab 4100 unit, which is fully rated to Class 1 DIv 2 specification. Within the 4100 enclosure sits the Enteq MPRx which utilizes XXT’s best-in-class decoding algorithms to receive and decode the telemetry pulses received from the standpipe’s pressure transmitter.. Robust hardware, filtering, and embedded firmware is used to remove mud pump and other undesirable noise, allowing the XXT downhole sensors to transmit data at maximum bit rates.

System Specifications

Parameters DC Motor

Battery Life @ 1.5 DR = 700 hours

Average Power 1.04 watts

Push-pull Force ≈ 150 lbs

Longevity ≈ 3000 ihours

Holding force Very high

EM Interference Low

Service Time 2 Hours

Operating Temperature 175°C

MTBF > 2000 hours

Parameters Resolution Speed updated Data resolution, SP = ROP

Gamma Ray real Time

1.4 CPS per API

Average 18 seconds (with Dynamic Sequence enabled and 1 sec Pulse Width)

3" @ 50 Ft/HR ROP 6" @ 100 Ft/HR ROP 9" @ 150 Ft/HR ROP

Gamma Ray Recording Devise, Standard

1.4 CPS per API

Adjustible in the DIM however DIM has limited Mem

Gamma Ray Recording Devise, High Capacity

1.4 CPS per API

Adjustible in the DIM however DIM has limited Mem

Accuracy: +/- 2% to 300°, +/- 5% to 350°

Vertical resolution -gamma ray sensor: 6.8"

Operating Temperature: Up to 175°c

Shock: Z Axis 500 g/0.5 milliseconds

Vibration: 20 g RMS


Operating Power: 90-260 VAC, 47-63 Hz, 250 VA

Operating Temperature: -40°C0 to 50°C

Storage Temperature: -40°C to 75°C

Operating / Non-operating shock: 3G RMS, 5 to 500 Hz

Humidity: 5% to 100%

Sealing: NEMA-4 on all six sides

Weight: 25 lbs

Dimensions: 16.2” (w) x 14.8” (h) x 4.45” (d)

Certification: UL 1604 / CSA C22.2 No. 213, Class 1 Div 2 location Groups A, B, C, & D; Temp. code T6 at 50°C ambient

Gamma Ray Sensor


Enteq Surface System

Directional Sensor Specifications*

Model 4100

Parameters Accuracy Repeatability Resolution

Azimuth (Degrees) +/- 0,5 +/- 0,5 0.1

Inclination (Degrees) +/- 0,05 +/- 0,05 0.1

Operating Temperature (°C) +/- 2,0 +/- 1,0 0.1

Local Magnetic Field (Total Magnetic Field, microTeslas)

+/- 0,1 μT +/- 0,1 μT 0,05μT

Gravitational position - front of the unit (Highside Toolface, Degrees)

+/- 0,5 +/- 0,5 0.1

Magnetic position - front of the unit [Magnetic Toolface, Degrees]

+/- 1,0 +/- 1,0 0.1

Azimuth position - front of the unit (Magnetic Toolface referenced to Grid or True North, Degrees)

+/- 1,0 +/- 1,0 0.1

Transmission resolution: Selectable

Speed (Data Rate): 0.625 bits/sec nominal

*calculated data only

*motor specs.

Page 5: Enteq MWD System

Downhole Tools QTY

XXT Directional Module 177°C 2

XXT Positive Pulse Pulser 177°C 2


XXT Gamma 177°C 2

Lower End Assembly 2

Spear Point 2

Interconnects 12

XXT Battery Assemblies 4

Surface Equipment QTY

Aluminum Kit Box 1

Laversab RFD 2

MWD Computer with XXT Software 2

Printer w/ Printer Cable 1

Battery Test Box 1


Line Conditioner 1

Pelican Cases for Printer & Laptops 3

Depth System 2

Gamma Surface Equipment QTY

Software, Digidrill key 1

Null Modem Cable 2

Serial to USB Cable 2

Serial Cable 2

USB Printer Cable 1


Line Conditioner 1

Pelican Cases for Printer & Laptops 4


8” UBHO Non Mag 6 5/8” Reg Connection 2

6 3/4” UBHO Non Mag 4 1/2” IF Connection 2

6 3/4” UBHO Non Mag 4 1/2” XH Connection 2

4 3/4” UBHO Non Mag 3 1/2” IF Connection 2

Kit Box also Contains QTY

All Handling tools needed 1

All Hand tools needed 1

Spare parts for kit 1

Consumables for kit 1

Pipe Screen QTY

Assorted sizes IF Pipe Screens 8

Wireline Equipment QTY

Swivel w/ 0.092” Fishing Neck 1

Spacer Bar - Aluminum 5’ 1

Weight Bar - Brass 5’ 1

Overshot - Bulldog or Kuster 1

Overshot - On/Off 1

J-Latch Assembly 1

Crossover - 5/8” Sucker Rod P x 1 1/4” 8-Rnd. B


Crossover - 5/8” Sucker Rod B x 1 1/4” 8-Rnd. P


Spang Jar 1

Spearpoint - Solid for Gyro 1

Muleshoe Sleeve QTY

3 1/2” (Small) 2

4 3/4” (Medium) 2

6 1/2” (Large) 2

Kit Box Contents

Page 6: Enteq MWD System

www.enteq.com | +1 (713) 389 5650 | Hanna Road, Oak Ridge North, Texas 77385


Enteq Upstream plc St Mary’s Court The Broadway Amersham Bucks, UK HP7 0UT

Enteq Upstream USA Inc. 7600 Burnet Road Suite 110 Austin Texas, USA 78704

MWD Sales

Enteq Drilling 26797 Hanna Rd. Building 2, Unit 6 Oak Ridge North, Texas, USA 77385

Main Phone: +1 (713) 389 5650 Main Fax: +1 (713) 389 5662

Sales: [email protected] Technical Support: [email protected]

Suggestions and questions: [email protected]

Enteq Drilling Products Sales

Enteq Drilling 9302-A Lambright Rd. Houston Texas, USA 77075

Main Phone: +1 (713) 944 6130

Sales: [email protected] Support: [email protected]