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Delay Toe Frac Sleeve-Sliding Sleeve Delay Opening, Highpressure
•The delay toe frac sleeve is used for the first stage of staged fracturing in the pipe and staged fracturing in cementing. •With delayed opening function to meet wellbore pressure test requirements. •Adjustable opening pressure and delay time.
Description
Applications
It is suitable for the first stage fracturing operation in multi-stage fracturing of oil and gas wells.
Features & Benefits
- Simple structure, high reliability, pressure rating 150MPa.
- Delay time is controlled by dissolvable materials and is insensitive to parameters such as well depth.
- Effectively solve the problems of excessive fluctuation range of opening pressure of conventional toe end fracturing sliding sleeve, resulting in early opening of the sliding sleeve or too high opening pressure.
- The sliding sleeve is designed to delay the opening mechanism to reduce the starting pressure of the rupture disc blasting, and the sliding sleeve is delayed to open after the rupture disc is blasted to meet the requirements of the wellbore medium pressure and high pressure test.
Technical parameters
Size |
OD (mm) |
Length (mm) |
ID (mm) |
Delay Time (min) |
Pressure Grade (MPa) |
Temperature Rating (℃) |
4.5" |
156 |
1200 |
100 |
30~90 (Adjustable) |
150 |
150 |
5.5" |
195 |
1296 |
120 |
30~90 (Adjustable) |
150 |
150 |
Note: Connection thread, inner and outer diameter size can be adjusted
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