Rod guide with removable vanes
AssigneeEnterra Patco Oilfield Products Limited
InventorDan E. O'Hair
Life of this patent
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Abstract
A rod guide with removable vanes provides the capability of using one wear-resistant material for the erodable volume of the rod guide and another, stock material for the body that holds the vanes. When the vanes of the rod guide are expended, they are removed and replaced and the body is reused. In this way, sucker rod segments can be quickly and easily refurbished in the field with significant savings in transport time. High value wear-resistant materials are placed where the wear occurs and the remainder of the rod guide is made of a material that can be used for an extended period of time in the harsh down-hole environment.
Claims12
A rod guide comprising:
- a. a rod guide body made of a first polymeric material;
- b. a plurality of vanes made of a second polymeric material;
- and
- c. a plurality of anchoring elements detachably coupling the vanes directly to the body such that the vanes remain stationary in relation to the body while the vanes are anchored to the body.
A method of forming a rod guide comprising the steps of:
- a. molding a body to a sucker rod segment, the body adapted to receive a plurality of vanes;
- b. separately molding a plurality vanes;
- and
- c. detachably anchoring the vanes directly to the body such that the vanes remain stationary in relation to the body while the vanes are anchored to the body.
Dependencies are inferred from the claim text.