Specifications

All accessories are non-rotating and made of easily drillable materials.

Features:
1. The YSZ-A Hydraulic Stage Cementer eliminates the need to use a freefall Opening Plug to open the circulation ports. Therefore, it is applicable for various well deviations.
2. The internal-closing structure and non-rotating closing sleeve design eliminate the possible damage to the closing sleeve when drilling out accessories.
3. The pressure-relief design eliminates fluid trapping and compression which might occur while opening and closing the circulation ports.

Detail Specification:

Technical specifications and parameters for YSZ-A Hydraulic Stage Cementer
Specification(in)	13 3/8”	10 3/4”	9 5/8”	7 5/8”	7”	5 1/2”
Overall length(mm)	1250	1250	1222	1290	1288	1249
Max. O.D(mm)	384	310	282.5	230	208	172
Min. I.D(mm)	315	225	220.5	174.2	155	122
Opening Pressure (Mpa)	15~17Mpa
Closing Pressure (Mpa)	5