Polymer shock absorber for use with well head lubricator assembly

1. A lubricator cap assembly for use at a well head of a gas-producing well, said assembly comprising:

a housing having an upper and a lower end, said lower end capable of receiving an end of a traveling plunger;

a shock absorber assembly mountable in said housing;

said shock absorber assembly comprising a polymer body having an end supportable in a cup, said polymer body comprises one or more slots capable of enabling fluid drainage; and

said cup capable of traveling toward said upper end of said housing upon a plunger strike of said cup, thereby causing said polymer body to deform and dissipate a force of impact caused by the plunger.

2. The assembly of claim 1 , wherein said plunger strike of said cup causes a radial movement of said polymer body, said radial movement bounded by an inner wall of said housing.

3. The assembly of claim 1 , wherein said housing further comprises a cap.

4. The assembly of claim 1 , wherein said housing further comprises a handle.

5. The assembly of claim 1 , wherein said one or more slots are alignable one with another to form one or more channels to enable fluid to pass therethrough.

6. The assembly of claim 1 , wherein said polymer body further comprises a rod along its longitudinal axis capable of supporting said polymer body upon compression along the longitudinal axis and expansion to substantially an original form of said polymer body.

7. A lubricator cap assembly mounted at a well head in communication with an upper end of a well tubing, said apparatus comprising:

a polymer shock absorber comprising an elongated body supportable by a cup;

said shock absorber capable of being mounted in a housing;

said shock absorber further comprising one or more slots capable of enabling fluid drainage;

a lower end of said housing capable of receiving an end of a traveling plunger; and

wherein said plunger end can strike a lower portion of said cup, thereby causing an upward travel of said cup and a deformation of said shock absorber to occur.

8. The apparatus of claim 7 , wherein an outer length of said shock absorber moves to contact an inner length of said housing during said deformation.

9. The apparatus of claim 7 , wherein said housing further comprises a handle.

10. The apparatus of claim 7 , wherein said one or more slots are alignable one with another to form one or more channels to enable fluid to pass therethrough.

11. The apparatus of claim 7 , wherein said shock absorber expands to substantially an original form.

12. A well head lubricator cap assembly comprising:

an elongated body made substantially of a polymer material and comprising one or more slots capable of enabling fluid drainage, a lower end of said body supportable by a cup;

said body capable of being mounted in a housing, an upper end of said housing comprising a removable cap;

a lower end of said housing capable of receiving an end of a traveling plunger;

wherein said plunger end can strike a lower portion of said cup, thereby causing a travel of said cup toward said removable cap; and

wherein said body can deform to absorb a force of plunger impact.

13. The apparatus of claim 12 , wherein said deformation further comprises a travel of an outer diameter of said body toward an inner wall of said housing.

14. The apparatus of claim 12 , wherein said body further comprises a rod capable of supporting said body.

15. The apparatus of claim 12 , wherein said housing further comprises a handle.

16. The apparatus of claim 12 , wherein said one or more slots are alignable one with another to form one or more channels to enable fluid to pass therethrough.