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Bent sub

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Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 8–11, 1989
Paper Number: SPE-19545-MS
... Abstract Bent subs and bent housing motors are one of the most important class of tools available to aid drilling engineers in deviation and directional control of wellbores. Even though such tools may spend very little actual time drilling a hole, the quality of their performance often...
Journal Articles
SPE Drill & Compl 1 (05): 390–394.
Paper Number: SPE-11384-PA
Published: 01 October 1986
...J. G. Boulet; P. E. Morin Summary A downhole, adjustable, multiangle bent sub, called Telepilote®, has been developed for remote control of the wellbore path on a real-time basis without changing the general bottomhole assembly (BHA) configuration. Different modes of actuation for changing the bent...
Proceedings Papers

Paper presented at the SPE Offshore Europe, September 6–9, 1983
Paper Number: SPE-11893-MS
... Abstract A down hole adjustable and multiangle bent sub is now available to remotely control the well bore path during directional drilling operations, with the same bottom-hole assembly (BHA) configuration. This new patented tool is called Telepilote. SMF International (SMFI) and the Institut...
Proceedings Papers

Paper presented at the SPE Offshore Europe, September 5–8, 1989
Paper Number: SPE-19244-MS
... including any elements with knee, like bent sub, bent housing, downhole motor, DTU… The static equilibrium position of the BRA in the borehole is computed by the finite element method. This method allows us to model any type of BRAs. The first part of the paper describes the modification in the finite...
Proceedings Papers

Paper presented at the IADC/SPE Drilling Conference, February 9–12, 1986
Paper Number: SPE-14767-MS
... Abstract This paper presents an analytical model that has successfully predicted the inclination directional behavior of rotary drilling bottomhole assemblies, including assemblies that contain bent subs and downhole motors. The model has been installed as part of the Engineering Simulator...
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Controllable <span class="search-highlight">bent</span> <span class="search-highlight">sub</span> deflection dimensions. The required extension length ...
Published: 12 March 2005
Fig. 6 Controllable bent sub deflection dimensions. The required extension length of the CBS was determined to be nearly 68-inch. This length will give about 10.6 inches deflection from the low side of the 7-inch casing which means that the tip of the extension sub will be about 4 inches inside th... More
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Kickoff using <span class="search-highlight">bent</span> <span class="search-highlight">sub</span> with mud motor.
Published: 30 October 2007
Fig. 10 Kickoff using bent sub with mud motor. More
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