| 摘要 |
<p>The invention relates to a guide for a column of sucker rods suspended in a string of production pipes by means of which there is transmitted the reciprocating motion to a piston of a submersible pump. The claimed guide comprises: a body () which surrounds a sucker rod and is coaxial thereto, and which has a polygonal cross-section molded in fixed contact with the sucker rod and a plurality of blades () longitudinally disposed and extending from the body (), each blade () having a pair of planar longitudinal side walls () and an exterior longitudinal edge (), each of said blades () having a first blade face () disposed between the first terminal end () of the blade () and an exterior longitudinal edge () and a second face () located between a second terminal end () of the blade () and the exterior longitudinal edge () and an area () of the body () between the longitudinal side wall () of a first blade () and the longitudinal side wall () of an adjacent second blade () defining a though () having a plurality of planar surfaces (). The claimed method consists in molding a guide coaxial about and in fixed contact with the sucker rod, the guide comprising a body portion surrounding the sucker rod and coaxial thereto, said body having a plurality of longitudinal blades disposed in and extending from the body, each blade having a pair of planar longitudinal side walls and an exterior longitudinal edge, each blade having a first blade face disposed between a second terminal end of the blade and the exterior longitudinal edge, and an area of the body between the longitudinal side wall of a first blade and the longitudinal side wall of an adjacent second blade defining a though having a plurality of planar surfaces.</p> |
