Guide device for coiled tubing
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United States of America Patent
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Apr 19, 2016
Grant Date -
Feb 20, 2014
app pub date -
Apr 13, 2012
filing date -
Apr 28, 2011
priority date (Note) -
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Abstract
A coiled tubing guide-in device is applied to oil field coiled tubing operation and used for guiding a coiled tubing into injector head gripper blocks. The coiled tubing guide-in device mainly consists of a slip connecting head, a locking sleeve, a floating sleeve, a guide head, and a traction steel rope. In the structure of the slip connecting head, a cone of an expansion plug is arranged in a slip sleeve. A lower end of a tightening nut is a convex spherical body. At a lower end of the tightening nut, an end of a traction steel rope is fixed in a rectangular groove at the lower end of the tightening nut through a threaded pin. In the structure of the locking sleeve, an upper end surface of a spherical support body is a concave spherical surface. An inner conical sleeve and an outer conical clamping sleeve are arranged in a cylindrical space. A spherical head is fixed on inner screw threads of the spherical support body. The number of combined locking bodies ranges from 4 to 15. A lower end of the floating sleeve at the lowest end is connected with a conical guide body through the traction steel rope. The effect is that the coiled tubing is fast and safely pulled out of a tubing reel and guided into the injector head gripper blocks through a guider.
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