XPulse Services
XPulse Survey on Connection provides inclination, azimuth, and steering capability. When you need the toolface (steering) you turn on the switch and when you are finished, you turn it off. Money is saved by turning it off as you will only be charged when you use the tool.
Each system bears a small footprint on the site consisting solely of the doghouse display, unit and pressure transducer (picture: right).
The equipment is designed and installed to be left in place during rig moves and service.
In addition remote assistance is standard on all systems allowing support staff to remotely troubleshoot and provide assistance to rig operators 24/7 at no additional charge.
This provides XPulse the ability to analyze ongoing operations and support real-time immediately if necessary.
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Survey On Connection™
During normal drilling operations XPulse automatically transmits and decodes surveys every time a new connection is made with no operator involvement. The survey time for this on jointed pipe application is zero, and only 1 minute for surveys when utilized on a Coiled Tubing Rig.
At Extreme Engineering this is referred to as a NET ZERO effect on drilling operations as no rig downtime is incurred. Other methods to take just one directional wireline survey, including competitor's tools, have historically taken 15-minutes or more.
The time saved from Survey on Connection translates into a more efficient drill operation, because less time saves dollars in your operating budget. In addition more data means more reliable and accurate information.
Simply put, XPulse Survey on Connection is the hands-down leader in the industry when it comes to unmanned directional surveying. Call or Email XPulse today to get more information about system costs and availability in your area!
Please download our comparative analysis (USA or Canada) to see how using XPulse can save you dollars and cents immediately!
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Passive MWD
Passive MWD is a method of combining the application of a Survey on Connection (SOC) system and an MWD (Measurements While Drilling) system into the same product and service.
The tool is installed into a wellbore to be run and provided as a service for the SOC application primarily. The tool is also configured and set-up for the eventual application as an MWD system while it is in the hole being used for SOC.
At some point during the drilling of the wellbore, the well path will deviate unnecessarily or possibly require intentional directional influence. At that time the operator communicates down to the SOC system and turns on the additional sensor/parameters required to turn the system into an MWD application. The MWD system is passive until required.
This application is unique in the industry.
Inclination
Inclination is the deflection from vertical in degrees. Vertical down is 0° and horizontal is 90°.
XPulse Survey on Connection provides inclination data automatically on every connection.
Azimuth
Can be referenced to a compass reading. It is measured in a horizontal plane from the geographic North Direction, beginning at 0° and continuing through 360°, clockwise from the north reference.
Steering
Toolface Is an angular measurement of the orientation of the bottom hole assembly (BHA) versus the top of the hole (gravity tool face) or magnetic north (magnetic tool face).
Reference for tool face is usually the "scribe mark" or " hi-side" of the mud motor, beginning at 0° and continuing through 360°, clockwise from the "scribe mark" or for magnetic tool face clockwise from the reference north bearing.
XPulse Survey on Connection provides steering only when required. The ability to turn on the steering system only when you require it will allow you to reserve your budget spending for necessary times.
Accelerometers
Today's MWD tools and Steering Tools use extremely precise solid state devices.
Accelerometers are devices whose output is a function of their orientation with respect to the earth's gravity vector. Used in the calculation of Inclination, Tool Face and Azimuth.
Errors can occur when the devices are actively reading in the presence of vibration and shock. Can be damaged by excessive shock along their non-active axis.
A bundle of three accelerometers in an X, Y and Z axis configuration will form an Inclinometer.
Magnetometers
Magnetometers are fluxgate induction devices whose output is a function of their orientation with respect to the earth's magnetic field.
The construction is simply a primary or drive coil of wire wrapped around a ferrite core, with a pick up coil of wire wrapped around both the drive coil and core. The output of the pick up coil will vary as a result of the influence from the earth's magnetic field and the magnetometers orientation in the magnetic field.
Magnetometers are used in the calculation of Azimuth and Magnetic Toolface. Errors can occur when the devices are actively reading in the presence of a distorted magnetic field.
Distortion can originate from drill string magnetic interference or from external magnetic interference (fish left in the hold, near by casing, certain formations). The error induced by the distortion is greatest when drilling east/west at high inclination angles.