Cementing Tool Mechanical Stage Cementing Collar
1. Mechanical type
2. Top/closing plug and first stage/flexible plug
3. Battle plate/free fall opening device/battle plate
4. Available in sizes 5-1/2" to 13-3/8"
5. Free fall opening device
Technical parameter of stage cementing collar
Size, in |
5 1/2" |
7" |
9 5/8" |
13 3/8" |
Max o. D., mm |
Φ170 |
Φ208 |
Φ283 |
Φ381 |
Drill-out I. D., mm |
Φ122 |
Φ155 |
Φ220 |
Φ315 |
Overall length, mm |
1082 |
1182 |
1222 |
1280 |
Rated load, t |
140 |
170 |
210 |
300 |
Sealing capacity, MPa |
25 |
25 |
25 |
25 |
Opening pressure, MPa |
13 |
13 |
13 |
14 |
Closing pressure, MPa |
5 |
5 |
5 |
5 |
Lower sliding sleeve I. D., mm |
Φ85 |
Φ115 |
Φ176 |
Φ203 |
Upper sliding sleeve I. D., mm |
Φ95 |
Φ125 |
Φ197 |
Φ285 |
Product's advantage
>>mechanical stage collar allows cementing of casing string in two stages.
>>these collar set the standard for reliability, cost effectiveness, and ease of use with outstanding built-in features and quality.
>>they are the collars of choice when drilling requirements call for proven technology and low risk.
>>the compact, simple design minimizes the number of moving parts and makes the tools easier to handle.
>>the collar's clear opening and closing indications at the surface accommodate the hydraulic conditions of the well for safer, more efficient operations.
>>the internal sleeves increase reliability and prevent premature opening from formation restrictions on applied pressures.
>>it reduces total pumping pressure in long casing strings.