System for drill string tallying, tracking and service factor measurement
First Claim
Patent Images
1. An identifying apparatus for use in drilling operations utilizing a drill bit and drill string comprising:
- said drill string having a wall with a recess therein, opening to the exterior thereof;
an electronic identification tag;
an electromagnetically conductive material secured within and substantially filling said recess for holding said tag in place within said recess.
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Accused Products
Abstract
A system for the automatic tallying of uniquely serialized drill string components from which well depth is determined, in hole component inventories are maintained, individual components are tracked through the well bore, component diameters are identified with respect to blowout preventer seal elevations and the determination and measurement of individual component down hole service factors with cumulative totalization in a computerized data base management system for these service factors for the purpose of better equalizing wear in order to obtain optimum life from drill strings.
195 Citations
14 Claims
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1. An identifying apparatus for use in drilling operations utilizing a drill bit and drill string comprising:
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said drill string having a wall with a recess therein, opening to the exterior thereof; an electronic identification tag; an electromagnetically conductive material secured within and substantially filling said recess for holding said tag in place within said recess. - View Dependent Claims (2, 3, 4, 12)
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5. An apparatus for minimizing electronic identification tag communication signal attenuation including:
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an electronic identification tag in a drill string component protective recess; an electromagnetically conductive type material securing said tag in said recess, said material having an external surface flush with the component outside surface and having wearing characteristics similar as that of the material of said component.
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6. An apparatus for determining well drilling parameters in the drilling of bore holes in the earth using drill string components comprising:
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a uniquely coded electronic tag carried by each of selected individual drill string components which are moved up and down with respect to a bore hole, said tag positioned in a recess in the wall of said component and held in place by an electromagnetically conductive material substantially filling said recess and providing a sacrificial wear surface remaining smooth with the outside of the drill string component as it wears in the hole; a reader located at a known elevation adjacent said drill string component and capable of detecting he presence of each said tag and transmitting an output signal identifying said detected tag; a computer capable of receiving the output signal from said reader for each signal detected for each tag. - View Dependent Claims (7, 8, 9)
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10. A system for drilling of offshore wells in water from a floating vessel of locating off-size portions of drill pipe tool joints or other drill string components having diameters with respect to a reference datum for which sub-sea blowout preventer seal and pack-off elements at the sea floor located at a certain elevations are not suitable to close around for proper seal and pressure containment comprising:
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(a) uniquely coded electronic tags recessed in individual drill string components, (b) a reader system for detecting each said individual tagged component as it passes through the rig floor, (c) computer means to provide a tally and tracking of said detected components within the well and sub-sea blowout preventer bore, (d) keyboard input into said computer means of information concerning said sub-sea blowout preventer seal and pack-off elevations with respect to a datum, (e) interface means for correcting any variances in said elevation of said pack-off and seal elevations from said datum elevation, (f) means for detecting the amount of drill string stretch between the derrick floor datum and said sub sea blowout preventer stack, (g) means to enter said drill string stretch amount into said computer for determining the true elevation of said off-size portions at any time, and (h) display means showing elevation position of said off-size portions with respect to the position of each said drill string component as it passes through said sub-sea blowout preventer stack.
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11. An apparatus for measuring an providing drill string service life factors utilizing automatic drill string identification and tracking of components in the well bore by means of a system comprised of:
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(a) uniquely coded electronic identification tag positioned in a recess in each individual drill string components and held in place by an electromagnetically conductive material filling said recess and providing a sacrificial wear surface remaining smooth with the outside of the drill string as it wears, (b) reading means for detecting and identifying each tag as each said tagged component pass through the rig floor, (c) computer means connected to said reader means to provide a tally of said individual components in the well bore, and including means to record the footage drilled during the interval each said tallied component is engaged in drilling hole to obtain total cumulative footage drilled for each component, (d) means to provide rotation count for each component during the interval each said tallied component is engaged in drilling to record total cumulative rotations for each such component, and (e) display and print-out means of the data recorded.
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13. An apparatus for providing a tally of drill string components supported by a traveling block in the well bore below a rig floor by means of an automatic tracking system comprising:
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(a) uniquely coded electronic identification tag recessed in each individual drill string components, (b) a reader system to read said tagged components as each pass through the rig floor, (c) computer means connected to said reader system to provide a tally of said identified drill string components, (d) means to sense the movement of said block and the load carried thereby and to record same in said computer means, (e) display and printout means of said tally. - View Dependent Claims (14)
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Specification