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Level-wind system for coiled tubing

a level-wind system and coil-type technology, applied in the field of coil-type tubing systems, can solve the problems of inability to adapt the tubing guide heads of these prior systems, subject to excess failure, and high cost of implementation, maintenance and operation of prior systems, and achieve the effect of less expensive manufacture, maintenance and operation

Inactive Publication Date: 2006-12-07
SCHLUMBERGER TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0006] It is a further desire of the present invention to provide a level-wind system that is less expensive to manufacture, maintain, and operate relative to prior art systems.
[0007] It is a still further desire of the present invention to provide a level-wind system that reduces points of failures in relation to the prior systems.
[0008] It is a still further desire of the present invention to provide a level-wind system which can accommodate multiple sizes of tubing without requiring adjustment or replacement of parts.

Problems solved by technology

Additionally, the tubing guide heads of these prior systems are not adaptable to various tubing diameters and are subject to excess failures.
These prior systems are also expensive to implement, maintain, and operate.

Method used

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  • Level-wind system for coiled tubing
  • Level-wind system for coiled tubing
  • Level-wind system for coiled tubing

Examples

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Embodiment Construction

[0018] Refer now to the drawings wherein depicted elements are not necessarily shown to scale and wherein like or similar elements are designated by the same reference numeral through the several views.

[0019]FIG. 1 is a side view of an embodiment of a trailer mounted coiled tubing unit of the present invention, generally designated by the numeral 10. A reel 12 for spooling coiled tubing T is mounted on a trailer. Coiled tubing T is spooled from reel 12 to injector 14 for injecting coiled tubing T into a well, and spooled onto reel 12 when removing coiled tubing T from the well. Reel 12 having an axle 16 is rotatably mounted on struts 18. Axle 16 defines the longitudinal axis of reel 12. A hydraulic motor 20 is connected to reel 12 for rotating reel 12. Hydraulic motor 20 and the drive connections, not shown, to reel 12 are generally referred to as the reel's drive mechanism.

[0020] A level-wind system 22 having an arm 24 and a level-wind head, or roller head, 26 is positioned proxi...

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Abstract

A level-wind head and system for coiled tubing the head adapted for passing coiled tubing of various outside diameters without repositioning or replacing the rollers. A system of an embodiment of the present invention includes a coiled tubing reel mounted for rotation about a horizontal axis, a level-wind head comprising only one pair rollers mounted in spaced relation to one another to form a throat sized to pass various outside diameter coiled tubing, without replacement or repositioning of the pair of rollers, to or from the reel, and a positioning system in connection with the level-wind head for selectively positioning the level-wind head proximate the reel.

Description

FIELD OF THE INVENTION [0001] The present invention relates in general to coil tubing systems and in particular to a level-wind system for coil tubing units. BACKGROUND [0002] Level-wind systems have been provided for spooling coiled tubing onto a reel when removing the tubing from a well and guiding the tubing off of the reel when injecting the tubing in a well. In many of the prior systems, the level-wind system is positioned by the reel's drive mechanism. These systems included many shortcomings that result in mechanical failures or failure to properly spool the tubing on or off of the reel. Additionally, the tubing guide heads of these prior systems are not adaptable to various tubing diameters and are subject to excess failures. These prior systems are also expensive to implement, maintain, and operate. [0003] An improved level-wind system was taught in co-owned U.S. Pat. No. 6,264,128, which is incorporated by reference herein. The level-wind system of the '128 patent addresse...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B65H54/28
CPCB65H75/425E21B19/22B65H2701/33B65H75/4407
Inventor TURK, JASONSHAMPINE, RODSAHETA, VISHAL
Owner SCHLUMBERGER TECH CORP
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