| 主权项 |
1. A method of pulling a sucker rod string from a well bore, the sucker rod string suspended from a horsehead of a pump jack, the sucker rod string having a polished rod extending through a stuffing box and a pony rod extending from an upper end of the polished rod, the pony rod having an area of reduced diameter, the method comprising:
obtaining a rod elevator comprising: a first latching mechanism having a first body and a first pair of latch members, the first body provided with a first notch on one side thereof, the first notch defining a first rod receiving space, the first pair of latch members pivotally attached to the first body and extending from the first body into the first rod receiving space; and a second latching mechanism having a second body and a second pair of latch members, the second body provided with a second notch on one side thereof, the second notch defining a second rod receiving space, the second pair of latch members pivotally attached to the second body and extending from the second body into the second rod receiving space; wherein the first latching mechanism is connected to the second latching mechanism in a spaced apart relationship with the first rod receiving space of the first latching mechanism substantially aligned with the second rod receiving space of the second latching mechanism; interconnecting an additional rod to a traveling block of a hoist system, the additional rod having an area of reduced diameter on at least a lower end thereof; connecting the first latching mechanism to the lower end of the additional rod by inserting the area of reduced diameter of the additional rod into the first rod receiving space of the first latching mechanism; connecting the second latching mechanism to the pony rod by inserting the area of reduced diameter of the pony rod into the second rod receiving space of the second latching mechanism so that the additional rod and the pony rod are in a spaced apart, axially aligned relationship, wherein the additional rod has a length such that the traveling block is maintained above the horsehead in a non-contact relationship thereto. |
