Hydraulic cement retainer is mainly used for temporary and permanent plugging or secondary cementing of oil, gas and water layers. Through the retainer, cement slurry is squeezed into the well section to be plugged in the annulus or into the fractures and pores of the formation, so as to achieve the purpose of plugging and plugging.
Structure
Structure: KRY443 hydraulic cement retainer is composed of setting mechanism and cement retainer.
Characteristics
1)The sealing and squeezing tube string are completed at one time, which is easy to operate. The lower part can be automatically closed after the workload is small.
2)Tubing open design, cement holder is also open design, effectively prevent scale blockage, prevent the switch.
Specification
| OD
(mm) | Diameter of steel ball（mm） | ID（mm） | cabinet minister
（mm） | Differential Pressure（MPa） | temperature（℃） | Release Pressure（MPa） | Knock off pressure from the tee（MPa） | Connect Buckle type | |
| 7″ | 148 | 25 | 34 | 1240 | 50 | 120 | 10-12 | 20-24 | 2 7/8″EUE |
| 5 1/2″ | 114 | 25 | 30 | 1125 | 50 | 120 | 10-12 | 20-24 | 2 7/8″EUE |
| 4 1/2″ | 92 | 18 | 22 | 1070 | 50 | 120 | 10-12 | 20-24 | 2-3/8″EUE |
Field operation
So far, more than 20 sets have been used in Wenliu oil production plant of Zhongyuan Oilfield, mainly for sealing layer and plugging water, with a success rate of 100%.
The well sealing project of Wen 13C and Wei 11 gas storage in Zhongyuan Oilfield has been used more than 100 sets so far, and the success rate is 95%. In the whole gas storage project construction, we have the highest success rate.
So far, more than 200 sets of oil production plants in Changqing oilfield have been used, mainly for sealing Wells, with a success rate of 98%.
The oil production plants of Liaohe oil field and Xinjiang oil field are widely used.
Because of its reliable performance and high success rate, the tool is widely used in major oil fields.
So far, more than 20 sets have been used in Wenliu oil production plant of Zhongyuan Oilfield, mainly for sealing layer and plugging water, with a success rate of 100%.
The well sealing project of Wen 13C and Wei 11 gas storage in Zhongyuan Oilfield has been used more than 100 sets so far, and the success rate is 95%. In the whole gas storage project construction, we have the highest success rate.
So far, more than 200 sets of oil production plants in Changqing oilfield have been used, mainly for sealing Wells, with a success rate of 98%.
The oil production plants of Liaohe oil field and Xinjiang oil field are widely used.
Because of its reliable performance and high success rate, the tool is widely used in major oil fields.
