Terre-RP Mud Pulse MWD Tool
Top-hanging Rotary Pulser | For Extreme Hydraulic Conditions
If seismic imaging results predict the need for an MWD tool able to withstand extreme hydraulic conditions, our powerful Terre-RP rotary pulser can handle the very worst and chew through the thickest mud.
To meet industry challenges, we have perfected the design of the conventional mud-pulse technology, allowing you to drill longer, achieve less NPT, and get more accurate results. Ultimately, your drilling experience will drastically improve by easily integrating Terre-RP MWD tool into your existing workflows.
Key Features
Pounds Per Barrel (LBS/bbl)
High Lost Circulation Material (LCM) Tolerances
Compared to the maximum of 40 pounds per barrel (LBS/bbl) LCM concentrations a linear pulser can handle, Terre-RP rotary mud pulser’s recommended max is twice as much at 80 LBS/bbl. We have even successfully operated this MWD tool in conditions demanding 92 LBS/bbl. In short, this rotary pulser will reliably handle your toughest jobs.
Retrievable
Wireline Retrievability
Unlike competing rotary systems, Terre-RP MWD Tool is wireline retrievable, allowing you to rescue your tool from underground in emergency situations. Your assets will be finally protected in tough situations.
Hours on One Battery (Survey Mode)
Hours on One Battery (Directional Drilling Mode)
Improved Battery Consumption
Terre-RP MWD tool will work up to 400 hours on one battery in survey mode and 200 hours in directional drilling mode, compared to 200 hours and 100 hours, respectively, of our competitors’ high-flow mud systems. This ultimately means less frequent battery changes in the field that lead to costly Non-Productive Time (NPT).
Max Temp Operational Hours
Extended Use at High Temperatures
Due to power consumption design changes, Terre-RP rotary pulser’s internal operation does not contribute to internal heat increases. This means that the life expectancy of your MWD tool at its maximum recommended temperature rating goes up from 1000 operational hours to 2000.
Range of Accuracy of Inclination
Range of Accuracy of Azimuth
Improved Sensor Pack Accuracy
The exceptional sensitivity of our sensors to the magnetic and gravitational fields combined with reduced internal noise levels allow for accuracy of inclination within the ±0.1° range and accuracy of azimuth within the ±0.2° range.
In fact, these results are among the top performers in the field. Our sensors are one of the many ways we ensure you always reach your goals.
Mechanical Parts MTBF Underground (Hours)
Extended Mean Time Between Failures (MTBF)
Terre-RP MWD Tool’s easier workflow allows for significantly smaller chance for human errors.
On the engineering side, the four-year average MTBF of the mechanical parts, which experience the most wear, is above 2,500 hours of underground performance. All of this combined ultimately means that your tool will fail less often.
Virtually Impossible Data Loss
Transmitter Design Changes
You will never lose your data. Data corruption can lead to a full operational stop, preventing you from reaching your goals. Our design modifications and increased data update rate will make sure your data is safe.
Specifications Beyond Conventional
As engineers, our goal is to push drilling technology to technical perfection. We believe that the specifications of our MWD tools need to be meaningful improvements to your operational workflows. Our mud-pulse based tools perform better and longer, which means cost-saving, consistently dependable results for you.
Terre-RP rotary mud pulse MWD tool’s specifications will ensure that it will quickly become your most relied upon MWD tool.
- Technical Specifications
- Environmental Operational Range
- Data Transmission Performance
- Quality of Navigation
- General Operational
Parameter |
Terre-RP Rotary Mud Pulse MWD Tool |
Benefits |
Collar size |
120 mm – 203 mm 4.75 in – 8.25 in
Additional custom sizes available. |
Works with a wide variety of drilling pipe diameters for any drilling conditions. |
Operating flow rate |
0.50 – 4.5 m³/min 50 gpm in 3 ½ collar – 1200 gpm in 8 ¾ collar |
Coverage of the entire spectrum of drilling fluid volume. |
Wireline retrievability |
Retrievable | You will be able to rescue your tool, if the drilling segment needs to be abandoned underground. |
Minimum ID for retrievability |
61 mm 2.4 in |
Small sizes allow for easier and faster retrieval. |
Flow Switch |
Vibration | More reliable and stable than pressure-based switches. |
Nominal length |
5 m – 8 m | The short length makes Terre-RP easier and safer to operate. Interfacing with other LWD equipment will not significantly increase the length of the entire assembly. |
Non-magnetic housing OD |
47.625 mm 1.875 in |
Will work with pipes collar sizes as small as 2 7/8 in diameter. |
Power supply |
Lithium 28 VDC/ 5 Amp | Most reliable power-source. Can be modified to a turbine-alternator hybrid. |
Parameter |
Terre-RP Rotary Mud Pulse MWD Tool |
Benefits |
Shock limit |
1000 g, 0.5 msec, ½ sine all axes |
Covers 99% of any conventional drilling conditions.
Note: extreme conditions affect expected lifetime of any equipment. |
Vibration limit |
5-30 Hz at 1 in double amplitude, 30-500 Hz, 20 g all axes |
|
Operating temperature (max) |
175°C (347°F) | |
Hydrostatic pressure (max) |
137,895 kPa 20, 000 Psi
|
|
Velocity Rate (max) |
10 m/sec 32 ft/sec |
|
Bend radius (max) |
20 Deg/10 m | |
LCM tolerances (max recommended) |
80 Lbs/bbl. Successfully tested up to 92 Lbs/bbl. medium not plug, premixed |
|
Operating pulse width |
0.5 – 2.0 sec (0.8 sec nominal) |
Parameter |
Terre-RP Rotary Mud Pulse MWD Tool |
Benefits |
Data update rate |
6 – 30 secs | Reliable transmission that will ensure that you never lose your data. |
Survey transmission time |
48 – 102 secs (configuration dependent) |
Parameter |
Terre-RP Rotary Mud Pulse MWD Tool |
Benefits |
GRV tool-face |
± 0.1° Accuracy | Some of the best accuracy on the market. |
Mag tool-face |
± 0.1° Accuracy | |
Azimuth |
± 0.2° Accuracy @ 45° <Inc<135° and -60°<Dip<+60° |
|
Inclination |
± 0.1° Accuracy |
Parameter |
Terre-RP Rotary Mud Pulse MWD Tool |
Benefits |
Survey procedure |
Rotary OFF -> pumps OFF for 60 secs -> pumps ON -> Survey sequence complete -> steering sequence | Flexibility in the drilling procedure allows for a seamless and unobtrusive integration into the workflow. |
Steering sequence on the start |
Rotary OFF -> pumps OFF for less than 20 secs -> pumps ON; Optional: rotary ON -> steering sequence/dynamic sequence |
|
BHA bottom landing configuration |
Motor -> NMDC (Non-Magnetic Drilling Collar) -> UBHO -> NMDC -> NMDC (optional) | Conventional configuration that does not require learning a new workflow. |
MWD String Configuration 1 |
Sensor Pack – Battery 2 – Battery 1 – Top Drive Rotary Mud Pulse | Interchangeable positions for increased distance from drilling motor’s magnetic influence. |
MWD String Configuration 2 |
Battery 1 – Sensor Pack – Battery 2 – Top Drive Rotary Mud Pulse | |
One battery operating hours |
Up to 400 hours in survey mode, and 200 hours in directional drilling mode | An increase in operations by 200 hours. |
Driller display / depth tracking box |
Wireless, industrial rate | Easier workflow compared to wired options. Cables are provided as back up. |
How Terre-RP Rotary Mud Pulse Can Fit Your Needs
If you are looking to secure long-term results, invest in reliable technology that will seamlessly integrate into your existing workflow and provide you with unparalleled flexibility, contact us today about Terre-RP.
Need Freedom From Your Mud Mix?
Our add-on transmitter, Pegasus, acts as a standalone Electro-Magnetic (EM) channel or can modify your existing Mud Pulse (MP) based MWD system into an EM and MP multi-channel telemetry system. For a quarter of the price of a full MWD system, you will be able to experience firsthand the benefits that an EM data path can bring to your existing workflow.
Need to Make a Change in the Field?
We believe in versatile solutions. Which is why, if you purchase a bottom-landed pulser system and realize in the field that the conditions demand a significantly more powerful mud pulser tool, you do not need to change your entire system. Instead, MWDPlanet can provide you with a cost-saving mechanical section to modify your existing mud-pulse based system in the field.