Abstract

A wellbore magnetic tool apparatus is used for generating a magnetic field emanating from a tubing string. The apparatus has a tubular body for connection in series with the tubing string. Magnetic elements are mounted within one or more cavities in the tubular body such that the field directions of all magnetic elements are aligned in a common direction extending along a diametrical axis of the tubular body. The cavities are open to an interior of the body so that the magnetic elements are inserted into the cavities through an inner longitudinal passage of the tubular body. One or more covers close the cavities relative to the longitudinal passage in the tubular body. Magnet receiving cavities open to the interior enable a proportionally larger cavity with greater density of magnets without weakening of the structure of the body.

IPC Classes  ?

• E21B 47/01 - Devices for supporting measuring instruments on drill bits, pipes, rods or wirelinesProtecting measuring instruments in boreholes against heat, shock, pressure or the like

Abstract

A wellbore magnetic tool apparatus is used for generating a magnetic field emanating from a tubing string. The apparatus has a tubular body for connection in series with the tubing string. Magnetic elements are mounted within one or more cavities in the tubular body such that the field directions of all magnetic elements are aligned in a common direction extending along a diametrical axis of the tubular body. The cavities are open to an interior of the body so that the magnetic elements are inserted into the cavities through an inner longitudinal passage of the tubular body. One or more covers close the cavities relative to the longitudinal passage in the tubular body. Magnet receiving cavities open to the interior enable a proportionally larger cavity with greater density of magnets without weakening of the structure of the body.

IPC Classes  ?

• E21B 31/06 - Fishing for or freeing objects in boreholes or wells using magnetic means
• E21B 47/01 - Devices for supporting measuring instruments on drill bits, pipes, rods or wirelinesProtecting measuring instruments in boreholes against heat, shock, pressure or the like
• E21B 47/017 - Protecting measuring instruments
• E21B 47/022 - Determining slope or direction of the borehole, e.g. using geomagnetism
• E21B 47/0228 - Determining slope or direction of the borehole, e.g. using geomagnetism using electromagnetic energy or detectors therefor
• E21B 47/085 - Measuring diameters or related dimensions at the borehole using radiant means, e.g. acoustic, radioactive or electromagnetic
• E21B 47/092 - Locating or determining the position of objects in boreholes or wellsIdentifying the free or blocked portions of pipes by detecting magnetic anomalies
• E21B 47/13 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling by electromagnetic energy, e.g. of radio frequency range

Abstract

A wellbore magnetic tool apparatus is used for generating a magnetic field emanating from a tubing string. The apparatus has a tubular body for connection in series with the tubing string. Magnetic elements are mounted within one or more cavities in the tubular body such that the field directions of all magnetic elements are aligned in a common direction extending along a diametrical axis of the tubular body. The cavities are open to an interior of the body so that the magnetic elements are inserted into the cavities through an inner longitudinal passage of the tubular body. One or more covers close the cavities relative to the longitudinal passage in the tubular body. Magnet receiving cavities open to the interior enable a proportionally larger cavity with greater density of magnets without weakening of the structure of the body.

IPC Classes  ?

• E21B 47/01 - Devices for supporting measuring instruments on drill bits, pipes, rods or wirelinesProtecting measuring instruments in boreholes against heat, shock, pressure or the like
• E21B 47/017 - Protecting measuring instruments
• E21B 47/092 - Locating or determining the position of objects in boreholes or wellsIdentifying the free or blocked portions of pipes by detecting magnetic anomalies
• E21B 47/085 - Measuring diameters or related dimensions at the borehole using radiant means, e.g. acoustic, radioactive or electromagnetic
• E21B 47/13 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling by electromagnetic energy, e.g. of radio frequency range
• E21B 47/022 - Determining slope or direction of the borehole, e.g. using geomagnetism
• E21B 47/0228 - Determining slope or direction of the borehole, e.g. using geomagnetism using electromagnetic energy or detectors therefor
• E21B 31/06 - Fishing for or freeing objects in boreholes or wells using magnetic means

Goods & Services

(1) Maintenance of industrial equipment, namely, pressure vessels, pressure equipment, namely, hoppers, silos, atmospheric storage tanks and boilers, process piping, lifting systems comprised of cranes and power jacks, mechanical hydraulic systems, all for use in the oil, gas, and petro-chemical industries. (2) Mechanical engineering services consisting of mechanical design services, heavy industrial equipment design services.