“PRECISE & APPROPRIATE”
AT EVERY TURN

Trajectory Control
GridNorth Directional Guidance offers Seasoned Professional Directional Drillers utilizing proven cutting edge technologies in applied drilling engineering practices, mud motor selections combined with access to and operating knowledge of LWD / MWD equipment to deliver high-quality data enabling us to make time critical decisions for the accurate drilling of extended reach, multi lateral, horizontal, vertical, and complex directional wells and sidetracks in any pressure and geological situation. We create a high-quality hole to successfully run and cement casing AND precise well placement to optimize production with maximum in zone formation exposure.
Certainty in Wellbore Position for Precise Well Placement
Directional surveys are perhaps the most valuable measurements taken for drilling operations. Without accurate and properly maintained and visually displayed surveys the risk of drilling out of zone or colliding with another well increases significantly. GridNorth Directional Guidance provides advanced surveying calculations with 3-D visualization which enhances the output of traditional MWD tools to improve safety and efficiency in drilling. Our cutting edge software reduces drilling and geological risk by increasing drilling efficiency and provides the level of well placement accuracy required to accommodate geological anomalies. Our cutting edge software program combined with our professionals in our well design department plus the execution by our seasoned professional Directional Drillers specifically enable operators to achieve their well placement objectives in all environments.
3-D Wellbore Analysis
GridNorth Directional Guidance has the latest in 3-D wellbore analysis. Our software in combination with your Geologist and our well Planning department has a battery of features that empowers us to control the massive amounts of data used in well planning and executing directional drilling procedures. Our 3-D technology implementation and separation factor calculations for anti-collision have no parallel in the industry today.

Well Planning
Our well planning is template driven. Through years of experience we have engineered multiple well design templates which can be easily recreated as can a customized plot template. Once created, these templates can be used to greatly increase productivity.
Included with the Well Planning is a Torque and Drag module. This module allows us to predict the torque and drag characteristics of a given well profile as a function of the variables which effect torque and drag.

We are often charged with planning the geometry of the well and our software and engineering group provides powerful tools to allow us to do that very easily.
We use our software and extensive experience to keep up with what is going on, to keep track automatically and be assured of the drilling operation without having to spend hours tracking numbers and trying to visualize procedures off a list.
We can also incorporate the Geologists seismic and geologic graphic representation as overlays and visually see where the well is in reference to where their targets are.
Generally there is a gap between what geologists understand about certain drilling engineering restraints and what a driller understands about certain offset geological data. The friction between the two groups is alleviated with our software and expert professionals’ geological/drilling knowledge by creating a common visual workspace in which all data is compiled and easily seen. When a geologist’s data is compiled alongside the driller’s information, the two groups can forge an optimal and efficient drilling operation.
. Well Planning

Our software and well design engineers take directional drilling and well planning to the next level with a rich 3D interface, powerful projections and professional reports. The industry has already embraced the cost-saving and time-saving potential of this third-generation program. No rival has the sheer visual impact of our software combined with plot and report generating capabilities, as well as advanced geodetics, error modeling with anti-collision combined with our professional team. Our software, Design Team and Directional Drilling Team is on the cutting edge in the industry and has no parallel.

Motor Equipment
We offer a selection of conventional and performance mud motors of varying sizes, including both chrome and carbide motors. Our motor selections include high quality positive displacement motors that can be equipped with fixed-bend or adjustable bent housings. In addition, we can replace standard slick sleeve housing with bladed stabilizers in a variety of specifications.
To meet the highest demands, engineers have developed a reduced-length positive displacement motor (PDM) with an “even wall” power section stator designed to improve motor performance and reliability at higher operating temperatures.

The new power section replaces the variable-thickness elastomer stator with one manufactured primarily of a precision milled contoured internal steel stator surface, which is laminated with a thin, uniform-thickness layer of elastomer. Like other PDMs, the new motor works on the reverse of the Moineau pump principle, converting hydraulic energy into mechanical energy. The term “even wall” refers to the uniform-thickness of the elastomer compared to the variable-thickness elastomer stator of the conventional motor, reduced stator deformation in the even wall stator result in higher volumetric and mechanical efficiency, raising the motor’s performance output, and making it more tolerant to higher wellbore temperatures, pressures, and fluid solids.
Advantages
Drilling motors vary somewhat in design. To provide directional capabilities, a drilling motor contains a deflection device, typically an adjustable-bent housing, between the power section and bearing assembly.
The drilling motor also must allow for higher bending stress and cyclic loading its components therefore require higher tensile strength.
Positive displacement motors have proven to be the most reliable and easy-to-operate for drilling applications. The PDM’s ability to convert hydraulic energy to mechanical energy, however, is not completely efficient because of leakage and other energy losses known as “Blow By”.
Torque and bit speed define the PDM output power, with the physical properties of the stator elastomer determining the maximum power output. As load or WOB increases, differential pressure and torque also increase causing the hydraulic forces inside the power section to deform the rubber profile until the sealing lines between the cavities open causing Blow By. The resulting leakage causes the bit speed to drop until the motor finally stalls. To prevent stalling, the stator elastomer must provide sufficient hardness to withstand the deforming hydraulic forces. Conversely, the elastomer must also provide ample flexibility to seal properly, and it must provide enough fatigue strength to withstand the cycling loads.
Increasing flow rates produce increasingly faster rotor speeds, resulting in higher sliding velocity between rotor and stator, increased elastomer wear, more heat from friction, and repeated flexing of the rubber by the rotor and hydraulic forces.
A phenomenon called “hysteresis heat generation” results in heat build-up. Because rubber acts as an insulator, the heat cannot dissipate to the annulus. Heat build-up plus downhole temperature can undermine the elastomer’s bond to the stator tube and also can degrade the elastomer’s physical properties.
The rubber can become brittle and unable to flex under the cyclic loading of rotor and pressurized fluid. Cracks initiate and grow, and finally rubber chunking damages the stator.
Even wall technology
Meeting the growing demand for improved PDM performance requires increasing the motor’s mechanical and volumetric efficiencies while minimizing energy losses. Improving the rubber compound on the stator of conventional motors has produced only incremental improvements.
PDM technology studies have shown that motor efficiencies would increase significantly if the lobes of the stator were made primarily of a solid, non elastic sealing material.
The biggest challenge, however, was finding a machining method to create lobes in a tube over the length of a typical stator. The even wall stator has a stator tube with an internal profile that requires less rubber compound when molding the stator.
The pictures above and to the right show the cross section of a conventional stator (top) and one featuring even wall technology (bottom). The lobe, which was formerly molded completely of rubber, now is backed up by the internal profile of the stator tube.
During operation, the even wall power section’s lobes provide more resistance than lobes in a conventional motor. Even at high differential pressures, the stator profile does not lose its sealing capability between the cavities.
Thus, the motor maintains greater volumetric efficiency resulting in improved motor performance.
The even wall technology motor experiences less heat buildup in the thin elastomer layer than in the thick rubber lobe of a conventional stator, resulting in improved mechanical efficiency and fewer energy losses.

Performance comparison

The chart to the right compares the performance of a 27/8-in. conventional motor with that of a 27/8-in. even wall motor. The X-axis indicates rotor speed and the Y-axis is the output torque.
The vertical lines show constant flow rate power curves—in this case showing the power curves for 60, 90, and 120 gpm.
The horizontal lines show the power curves for constant differential pressures of 200, 400, 600, 800, and 1,000 psi across the motor.
Both power sections have the same lobe configuration and stator pitch length but slightly different profiles. The conventional motor has 5.5 stages and a larger chamber volume, compared with the even wall stator with 4 stages.
Due to the difference in chamber volume, the conventional motor runs slower than the even wall motor at the same flow rate, yet produces more torque at the same differential pressure.
Because of its improved efficiency, the even wall motor produces considerably more output power than its conventional counterpart from the same input energy.
In addition, the even wall motor can withstand more load, resulting in even more torque output. Since the even wall motor only has 4 stages compared with 5.5 at the same stator pitch length, it delivers more power at less profile length.

M.W.D. Equipment MWD/LWD equipment has technically advanced exponentially and there are many types and manufacturers. Our seasoned team has the extensive experience of having already used all the different types and manufacturers, because of this we KNOW which tool to use in a particular application others have one type purchased hindering advancement in technology since they are invested in ONE type of tool and then try to adapt them to new applications.
1. General Electric Energy – Drilling Measurements (GE + Sondex) This company has involved in the oilfield industry for more than 30 years now. They are manufacturing many oilfield equipment used by leading operators and service companies in the world. At the beginning they only provide the well known positive pulse Tensor MWD system, but due to their acquisition of Sondex few years ago, they now have the negative and electromagnetic MWD systems. Besides MWD tools, GE also provides LWD systems, like Gamma Ray and Resistivity tools.
2. Tolteq Advanced Tolteq tools fit in existing systems yet include innovative and advanced features.
3. Applied Technology Associates Applied Technologies Associates (ATA) designs, builds, and manufactures Borehole surveying instruments (both gyroscopic and magnetic), MWD (measurement while drilling) systems, and production logging systems comprise the bulk of our products their sister company, Scientific Drilling (SDI), uses technology developed by ATA to provide services to the oil industry, including borehole surveying, wireline steering, MWD, production logging, and more.
4. APS Technology APS Technology has assembled the most experienced independent MWD/LWD design team in the world. Their engineers, technicians, toolmakers and machinists create the world’s most advanced and reliable electromechanical, instrumentation and sensor designs
5. Bench Tree Bench Tree has been providing companies with products and support in the oil and gas drilling industry since 2003. They have over 200 combined years of experience designing, manufacturing, repairing, servicing and using equipment for the oil and gas drilling industry. Their products specialize in the Measurement While Drilling (MWD) and Survey on Connection product markets. Their experience includes mechanical, software, and instrumentation designs which have demonstrated years of successful service in the industry.
6. Applied Physics Systems Applied Physics Systems is a leader in the manufacture of magnetic field measuring equipment including Fluxgate Magnetometers, DC SQUID Magnetometers and Clip-on Millimeters. We also manufacture a broad line of Angular Orientation measuring sensors including Steering Sensors for Directional Drilling applications and miniaturized sensors for general purpose use.
7. Compass Directional Guidance Compass Directional Guidance, Inc. is a “one source” for all measurement while drilling (MWD) and various logging while drilling (LWD) hardware.

Down Hole Non Magnetic Equipment

Our team has an alliance with a premier down hole tool company that can not only supply every down hole non magnetic tool in high quantities needed for Directional Drilling applications but also tools for other applications as needed.

A few Oil and Gas Companies our team has worked with in North America and Internationally;

CTO. Operations International/Domestic
Calvin DeGhelder
Office – (281) 371-8986
Cell – (832) 661-8444