| 摘要 |
A horizontal spool tree assembly includes a spool body or housing 12 and a tubing hanger 18, 118, 218, 318 supporting a tubing string in a well. An internal tree cap 20, 120, 220, 320 is provided within the central bore in the spool body. In some embodiments, the tree cap includes a central bore in communication with a production bore through the tubing hanger and the lateral bore extending to a production port in the spool body. First and second closure members may be provided in the tree cap.
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