Oifield Phenolic Core Cementing Rubber Plugs
Top and Bottom, Phenolic Core Plugs
Phenolic core cementing plugs
Wiping fins are molded from natural rubber or hydrogenated nitrile (HNBR).
Temperature rating (°F): -65 to 180 (Standard); -40 to 300 (High Temp).
PDC drillable.
API Top and Bottom Cementing Plug / Non-rotating Cement Plug
1) Types Available: Conventional standard plugs and non-rotating plugs are available;
2) Standard: API
3) API and ISO certified
4) Specifications: 4 1/2''---20''. More special sizes or combination are available as requested.
5) Material: Rubbers and Phenolic Resins.
6) Application
Our cementing plugs are specially designed with a positive wiping action to ensure that the casing is clean.
The top cementing plugs is designed to exert continous pressure on the casing wall.
The fins and tail section of bottom plugs provide positive wiping action. Fins also serve as a seal while cementing.
7) Structure:
The core is made of aluminum or phenolic resins, depending on the application and well conditions.
The plug is made of high performance materials such as rubbers or phenolic resins.
8) Using Method:
Place bottom plug before injecting cement, and pump the scrape to clean the well-wall. After all is set, build the pressure of 2-4MPa till the rubber diaphragm is broken, and thus circulation is formed. Then inject the cement, place the top plug, pump, set the pressure, and well cementation comes to an end.
9) main parameters
| Casing size(in) |
casing weight range |
Wiper Fin O.D |
| mm |
in |
mm |
in |
| 4 1/2" |
14.14-17.26 |
9.50-11.60 |
110 |
4.331 |
| 5" |
17.11-35.86 |
11.50-24.10 |
122 |
4.803 |
| 5 1/2" |
20.83-39.88 |
14.00-26.80 |
135 |
5.315 |
| 7" |
25.30-56.55 |
17.00-38.00 |
170 |
6.693 |
| 7 5/8" |
35.72-63.69 |
24.00-42.00 |
185 |
7.283 |
| 9 5/8" |
53.57-79.62 |
36.00-53.50 |
235 |
9.252 |
| 10 3/4" |
60.27-97.77 |
40.50-65.70 |
260 |
10.236 |
| 13 3/8" |
71.43-107.15 |
48.00-72.00 |
333 |
13.110 |
| 20" |
139.89-197.93 |
94.00-133.00 |
498 |
19.606 |
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