GABI™ Motor

The Sperry Drilling GABI™ motor is equipped with at-bit azimuthal gamma ray and inclination measurements for improved geosteering and optimum wellbore placement.

The GABI sensor package can be mounted below the power unit of the selected SperryDrill® positive displacement motors to deliver immediate feedback on directional trends and formation changes. By providing four independent gamma ray readings simultaneously in four directions around the tool, the GABI sensor delivers full wellbore coverage even in ‘sliding’ mode without the need to orient the motor for up, down, left and right readings. Locating the sensors close to the bit makes it possible to detect adjacent bed boundaries before exiting the pay zone, and avoid wasting time drilling non-productive footage. Inclination readings from just behind the bit contribute to flatter, longer horizontals and more accurate wellbore placement.

GABI Sensor Applications

  • Geosteering horizontal wells
  • Detecting approaching bed boundaries with high gamma ray contrast
  • Maintaining tight trajectory control when drilling in formations with high steering difficulty
  • Drilling horizontals in gas reservoirs where extremely flat trajectories can improve production
  • Determining dip direction via borehole imaging for better reservoir understanding
  • Stopping precisely at desired casing/coring points

GABI™ Downhole Drilling Motor

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  TitleНазвание  DateДата
Summary Summary Canada: GABI™ Sensor Provides At-Bit Technology to Help Maximize Reservoir Exposure and Increase Drilling Efficiency Sign in required
While drilling horizontal wells in the Cardium formation in Alberta, Canada, NAL Oil and Gas Trust needed to keep the wellbore within a 2 meter (6.6 feet) thick zone of interest to help maximize reservoir exposure.
Summary Summary Oklahoma, USA: GABI™ Motor Solution Geosteers Exploration Well to Critical Coring Point Sign in required
Due to the short sensor-to-bit distance of the GABI motor, Sperry Drilling was able to locate and select a formation top that had previously been drilled through using other tools, precisely placing the wellbore at TD in the exact position the customer wanted.
Summary Summary Oklahoma, USA: First 6-3/4-inch GABI™ Motor Trial in USA Demonstrates Real-Time Value Drilling Shale Well Sign in required
The operator realized the value in knowing wellbore reactions closer to the bit provided real-time inclination updates, an improvement over previous jobs with data from sensors positioned further away from the bit. In addition, they were pleased that the GABI motor delivered the at-bit information even while sliding the motor, with no additional down time usually experienced with other imaging sensors while wiping through slides.
Summary Summary Canada, Alberta: Real-Time Geosteering Delivers Optimal Wellbore Placement in Thin Coal Reservoir Sign in required
An operator drilling a coalbed methane well in the Swan Hills area of Alberta, Canada needed to stay at the bottom of a thin reservoir to enable maximum production of methane gas. The reservoir was only 1.8 meters (6 feet) thick, and it was very important to place the well as low in the reservoir as possible without exiting.
Summary Summary GOM: An operator saved an estimated US$500,000 by staying completely within the target window Sign in required
An operator in the Gulf of Mexico wanted to increase production and recovery in a mature field, but was faced by two main challenges.
Summary Summary Gulf of Mexico: GABI™ Motor Provides Superior At-Bit Technology for Real-Time Geosteering on GOM Continental Shelf Sign in required
The 4,952-foot (1,509-meter) hole section was delivered as planned in a single run (eliminating additional BHA changes), drilling 100 percent of the target sand. The interval was drilled in 43.5 drilling hours with an average rate of penetration of 114 feet per hour.
Summary Summary Texas, USA: GABI™ Motor Helps Deliver Well 100 Percent in Target Zone Sign in required
While drilling the 7,500-foot (2,286-meters) horizontal section of a 14,000-foot (4,267.2-meters) well in the Wolfcamp Shale in west Texas, the customer faced a 2,000-foot (609.6-meters) section with a slight anticline in the middle. Starting at about 9,300-feet (2,834.6-meters) measured depth (MD), the target zone sloped upwards from 6,000-feet (1,828.8-meters) true vertical depth (TVD) to 5,900-feet (1798.32-meters) TVD, and back down again to 6,000-feet (1,828.8-meters) TVD. Previous attempts at drilling this zone had resulted in breaking out of the top of the target formation, and losing hundreds of feet of productive interval. Additionally, this zone needed to be drilled smoothly to aid in running casing for completion.
Summary Summary Canada: GABI™ Sensor Provides At-Bit Technology to Help Maximize Reservoir Exposure and Increase Drilling Efficiency Sign in required
While drilling horizontal wells in the Cardium formation in Alberta, Canada, NAL Oil and Gas Trust needed to keep the wellbore within a 2 meter (6.6 feet) thick zone of interest to help maximize reservoir exposure.
Summary Summary Oklahoma, USA: GABI™ Motor and StrataSteer® 3D Service Provide Real-Time Geosteering Solution for Successful Well Placement in Critical Thin Bed Horizontal Sign in required
While drilling the 4,000-foot horizontal section of a 10,000-foot well in the Mississippi Lime near Alva, Oklahoma, the customer needed to maximize exposure to the 15-foot thick target formation and totally avoid the bounding shale above. Drilling into the shale above would introduce wellbore stability issues, and force the operator to sidetrack. Additionally, the operator needed to minimize the cost of the well while staying in zone. Previous attempts at drilling this zone had resulted in breaking out of the target formation, and having to pull back and sidetrack the well.
Summary Summary GABI™ Downhole Drilling Motor
Motor equipped with at-bit azimuthal gamma ray and inclination measurements for improved geosteering and optimum wellbore placement
Summary Summary GABI™ Downhole Drilling Motor
Sperry Drilling’s GABI™ motor is equipped with a GABI™ sensor providing at-bit azimuthal gamma ray and inclination measurements for improved geosteering and optimum wellbore placement.
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