Active Magnetic Ranging Services

Reduce uncertainty in wellbore positioning

Measure the distance and direction between two or more wellbores by using a field of known strength and orientation whether it’s generated with earth magnets or electromagnetism. With our active magnetic ranging services, you no longer need gyro surveys and you can:  

  • Drill safely when operating outside permissible anti-collision limits
  • Deploy parallel ranging accurately for maximized recovery in SAGD operations
  • Avoid well collision by acquiring precise positioning measurements between two wellbores  
  • Position wellbores within extremely tight tolerances, with a range distance of up to 262 ft/80 m, and eliminate costly sidetracks

Active magnetic ranging services include surface-access, access-dependent, and access-independent solutions.

Surface-Access Active Magnetic Ranging

Applications for parallel ranging without the need for downhole wireline conveyance, such as:

  • Steam-assisted gravity design (SAGD) environments 

Access-Dependent Active Magnetic Ranging

Applications where two or more wellbores are positioned within extremely tight tolerances, such as:

  • Stacked horizontal well pairs for SAGD wells
  • In-fill drilling and collision avoidance
  • Wellbore intersections for well control or pipelines
  • Observation well placement
  • Coalbed methane (CBM) degasification wells
Magnetic Ranging

Access-Independent Active Magnetic Ranging

Applications with no access to the existing wellbore but that require wells to be placed closely together without surveying errors, such as:

  • Relief well drilling
  • Collision avoidance
  • Enhanced recovery techniques (TAGD, SAGD, CBM)
  • Abandoned well identification and avoidance
  • Complex plug and abandonment
Magnetic Ranging

Every step of the way, Halliburton Sperry Drilling can help you drill to produce, and maximize the value of your asset.

Aurora™ Surface-Access Magnetic Ranging Service

Aurora™ Surface-Access Magnetic Ranging Service

SAGD drilling applications require parallel stacked horizontal wells drilled closely above each other with a high degree of accuracy. At Halliburton, we can help you place your wells accurately the first time and gain the greatest returns from your SAGD project.

Active Magnetic Ranging

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Summary Summary Indonesia: WellSpot™ Active Magnetic Ranging Service Leads to a Successful Relief Well Interception of a Blowout Well. Sign in required
In Indonesia, an operator had a 2,160-ft (658-m) well blowout that was on fire. One of the first options for addressing a blowout is a surface intervention.
Summary Summary India: Sperry Drilling Active WellSpot™ Ranging Saves Millions for Plug and Abandonment Job in Offshore Well Sign in required
Due to a damaged well head, an operator with an offshore well in India was faced with drilling a relief well to complete a plug and abandon operation (P&A).
Summary Summary Argentina: Sperry Drilling uses Active Magnetic Ranging to Drill Relief Well and saves the Operator an Estimated $3 Million Sign in required
YPF contacted Halliburton to provide well control, survey management, active magnetic ranging and directional drilling services for a second relief well.
Summary Summary United States: No-Access Active Ranging Saves USD 2.5 Million and over 25 Days Sign in required
Sperry’s Ranging WellSpot RGR Service Saves $2.5 Million for Plug and Abandon Operation
Summary Summary United States: Sperry Drilling Passive Ranging Leads to Successful Re-Entry and Helps Salvage an 18,000 Foot (5,486 Meter) Well Sign in required
This production well of over 18,000 feet (5,486 meters) in South Texas was at risk of compromising multiple wells in the vicinity due to a drilling BHA becoming stuck less than 200 feet (61 meters) from the casing shoe, at a depth of 5300 feet (1,615 meters).
Summary Summary Alaska, USA: Pioneer Natural Resources Uses Active Magnetic Ranging to Avoid Risk ofWellbore Collision Sign in required
The Oooguruk project, three miles off the coast of Alaska’s North Slope, is a six-acre island built by Pioneer Natural Resources Co. to enable drilling operations in the Arctic Ocean.
Summary Summary USA, Southern: Operator Reduces Wellbore Position Uncertainty and Avoids Potential Costly Sidetracks for a Blowout Relief Well Sign in required
While conducting operations on an unconventional relief well for a blowout in a field in the southern part of the USA, an operator observed a discrepancy in the well position after analyzing the data from two separate surveys in the same wellbore.
Summary Summary Home on the Range (Oilfield Technology March 2014) Sign in required
Oilfield Technology Journal publication
Summary Summary Aurora™ Surface-Access Magnetic Ranging Service - Sales Data Sheet
An industry first, the Aurora™ service, designed for SAGD applications, utilizes surface excitation to determine a ranging distance and direction relative to the drilling wellbore.
Summary Summary Aurora™ Surface-Access Magnetic Ranging Service
SAGD drilling applications require parallel stacked horizontal wells drilled closely above each other with a high degree of accuracy. At Halliburton, we can help you place your wells accurately the first time and gain the greatest returns from your SAGD project.
Summary Summary Active Magnetic Ranging
Active magnetic ranging (AMR) technology is comprised of two main components: current injection and a downhole sensor.
Related Information

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