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| Warranty: | 1 Year |
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Casing Packer (casing external packer) uses hydraulic expansion type structure, mainly be used in the complex wells'(oil,gas,water) completion project, to achieve downhole packer and bridging and in favor of improvement of the quality of completion. The practice proved that this tool have characters of easy operation,wide adaptability, it has a very important position in the completion project.
Hydraulic expansion packer mainly consists ofvalve system joint assembly, rubber barrel, central tube ,casing sub. The valve system is divided into axial valve system and radial valve system. Radial valve system is composed of a set of three valve.
Working Principle
In the construction process, the replace plug will touch off the breaking stick which is sealed in the intake hole when the replace plunge through the valve joint of the packer. The replacement pluge will make the casing form a seal when it moves to the spoiler(we also can use the pitch or blind plate and pipe string process structures make casing form seal, for these process pipe string structure without plug through so we should take off the breaking stick in advance), Bie pressure liquid through the valve system fo intake hole into the open valve system of intake hole into the open valve. when the pressure to achieve set valve, the pin on the ope valve is snapped. open valve, and at the same time, the single valve is opened, the fluid is through limiting valve into the expansion cavity between the center pipe and rubber cylinder, making packer inflation and wall close contact form seal.
When the pressure of the expansion cavity reach the value of the limiting valve's pin pressure, pin shear, limiting valve closed and will make intake hole sealing, the caing pressure valve have no influence on the pressure is zero, open valve automatic locking, realize premanent closed,(see chart 3)after the downhole pressure operation dose not affect the packer fate.
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Model
|
Maximum diameter mm |
Path mm |
Working pressure MPa |
Operating Temperature °C |
Length mm |
Matched tubes mm |
Connection thread |
|
Y422-110 |
110 |
48 |
50 |
140 |
2146 |
118-121 |
2 7/8 UP TBG |
|
Y422-114 |
114 |
58 |
50 |
140 |
2146 |
121-124 |
2 7/8 UP TBG |
|
Y422-148 |
148 |
65 |
50 |
140 |
2168 |
154-161 |
2 7/8 UP TBG |
A The usage range of the tools and instruments on the packer is wider than the ordinary packer.
B There is no O-ring, preventing the packer invalidation because of the O-ring leak.
C Double grip supporting, the anchor state is stable, preventing the packer invalidation because of the moving of the string. Meanwhile, the packer can work in either compression, tensile or neutral state because of a bidirectional anchor.
D The common use of releasing kava and upper kava make the seat sealing and unsealing easy and stable.
1. Casing Centralizer 2. Float Collar & Float Shoe
3. Cementing Plug 4. Cementing Head
5. Cement Basket 6. Tubing Pump / Rod Pump
7. Valve Ball & seat 8. Casing / Tubing Pipe and Coupling
9. Stage Collar 10. Mud Pump
11. Air Blaster 12. Drilling Rig Spare Parts
We Shandong yacheng petroleum technology was established in 2003 year, located in Dongying City, Shengli oilfield, which is the second largest oilfield in China.
Our business scope includes oilfield equipment supply, such as drilling equipment and spares, wellhead equipment, and oil recovery equipment.
We have served Shengli oilfield in the last 19 years and established a solid partnership and network with quality OEM factories.
Based on our responsive and responsible engineering & commercial team, we can provide a one-stop-shop service to our customers, and a package plan of procurement that brings added value in terms of delivery time, fair prices, and inventory in stock.
We are looking forward to building a partnership with your company and providing you with attentive service.
1. About packing:
plywood case, cartons, or pallets
2. Terms of payment:
We accept T/T, L/C, Western union, Papal
3. Terms of shipment:
About 30 days after receiving the advance payment or according to bot parties agreement
4. Ports of shipment:
Tianjin, Qingdao, Shanghai, and other locations requested by customers by sea,air, or train
5. Guarantee:
One year since delivery.
6. Inspection:
100% testing before delivery
Welcome to choose our products, we are here all the time!
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