| 摘要 |
A process for lining or for relining a fluid helical device stator. In one preferred embodiment, the process includes removing an existing helical surface of a progressive cavity helical device from a housing which is connected to tubulars used downhole in a subterranean well. A mandrel having a helical exterior is inserted into a mold. In one preferred embodiment, a composite stator insert is formed in the mold composed of fibers and resin. Once the composite stator insert has been formed, the mandrel and the mold are removed. The composite stator insert is inserted into and attached to the housing.
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