API Swellable Hydraulic External Casing Packer For Oil Well Drilling Tools
1. Description of packer
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 f of e valve m system t joint assembly, rubber barrel, central tube ,casing sub. The valve systems is divided into axial valve system and radial valve system. Radial valve system is composed of a a set of three valve.
2. 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 pluge through the valve joint of the packer. The replace pluge will make the casing form seal when it move 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 pressre 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 open, and at the same time, single valve is opened, the fluid through limiting valve into the expansion cavity between center pipe and rubber cylinder, make packer inflation and wall close contact form seal.
When the pressure of the expansion cavity reach the value of limiting valve's pin pressure, pin shear, liemeitng 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 noe affect the packer fate.
In some specaail pipe string process well, also can use the inner pipe tools to a packer, achieve completion purpose(Such as packer direct completion and packer in the screen between the packer and completion method). 
3. Drawing
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Casing Packer Specification
| Model | Max. OD (mm) | Nominal Diameters (mm) | Effective Length (mm) | Sealing Length of Rubber Tube (mm) | Well Diameters Range |
| HXK48 | 78 | 48 | 2600/3540/4540/ 5540/7540/11540 | 1150/2000/3000/ 4000/6000/10000 | D+15~1.7D |
| HXK60 | 89 | 60 | 2600/3540/4540/ 5540/7540/11540 | 1150/2000/3000/ 4000/6000/10000 | D+15~1.7D |
| HXK73 | 102 | 73 | 2600/3540/4540/ 5540/7540/11540 | 1150/2000/3000/ 4000/6000/10000 | D+15~1.7D |
| HXK89 | 114 | 89 | 2600/3540/4540/ 5540/7540/11540 | 1150/2000/3000/ 4000/6000/10000 | D+15~1.7D |
| HXK102 | 133 | 102 | 2600/3540/4540/ 5540/7540/11540 | 1150/2000/3000/ 4000/6000/10000 | D+15~1.7D |
| HXK114 | 146 | 114 | 2600/3540/4540/ 5540/7540/11540 | 1150/2000/3000/ 4000/6000/10000 | D+15~1.7D |
| HXK127 | 154/148 | 127 | 2600/3540/4540/ 5540/7540/11540 | 1150/2000/3000/ 4000/6000/10000 | D+15~1.7D |
| HXK140 | 178/183/190 | 140 | 2900/3850/4850/ 5850/7850/11850 | 1150/2000/3000/ 4000/6000/10000 | D+15~1.7D |
| HXK168 | 202 | 168 | 2900/3850/4850/ 5850/7850/11850 | 1150/2000/3000/ 4000/6000/10000 | D+15~1.7D |
| HXK178 | 206 | 178 | 2900/3850/4850/ 5850/7850/11850 | 1150/2000/3000/ 4000/6000/10000 | D+15~1.7D |
| HXK245 | 286 | 245 | 3180/4280/5280/ 6280/8280/11280 | 1050/2000/3000/ 4000/6000/10000 | D+15~1.7D |
| HXK273 | 324 | 273 | 3180/4280/5280/ 6280/8280/11280 | 1050/2000/3000/ 4000/6000/10000 | D+15~1.7D |
| HXK298 | 349 | 298 | 3180/4280/5280/ 6280/8280/11280 | 1050/2000/3000/ 4000/6000/10000 | D+15~1.7D |
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Company Information:
About us
Dongying Machinery Equipment Co.,Ltd is a professional supplier of various petroleum equipment, including drilling rig accessories, well control system, drill string, handling tools, downhole tools, OCTG, drilling tools, cementing tools and spare parts with API certification. Our products have been exported to Russia, America, Middle East, South America, Southeast Asia, Central Asia, African, Australia, Europe etc. Our company is willing to cooperate and make common progress with friends at home and abroad with first-class products, first-class service and reasonable prices.
Certificates
API-5CT, API-10D, API-7K, API-11E, API-6A, API-11AX, API-5D, ISO 9001, ISO14001, ISO18001 etc.
Our Services:
1. We possess a 24 hr response system to provide convenient, fast, and effective pre-sale, during sale and after-sale service.
2. Our promise: Any equipment sold by Dongying at any place in the world, we will provide after-sale service promptly and efficiently. Any equipment component damaged by manufacturing defect or quality problem during the warranty period, Dongying will bear the direct cost of the damaged parts.
3. Warranty period: 18 months from the day that the unit leaves factory or 12 months from the date that the unit is put into use (choose the earliest one which comes to an end as the calculation standard).
Part of our Main Products:
If any needs, pls contact us freely:
Dongying Machinery Equipment Co.
Address: North Two Road, Dongying City, Shandong Province, China.
Mob/whats app/we chat:+86 13475294399
*Email: christal@cn.com
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