Packer Equipment Sourcing

Usage
This type of Packer has some advantages, such as sealing well, setting reliable, unsetting easily, production and assembly easily and operation conveniently. It is mainly used to stratified well testing, water injection, water plugging, acidification, fracture and etc.
Structure feature
The Packer is composed by hydraulic anchor, circulating system, packer element, mechanical slip and transposer. Single slip support, rotating string tools to set and pull up string to unset. Slip and anchor are after special treatment, could touch casing surface strictly. Anchor spring and drag block spring are high-tensile and high strength, which could prevent of packer string block cause of anchor spring rust together with surface and could not back.

Technical specification

Size	Y221-115	Y221-148
OD. (mm)	Ф115	Ф148
Steel body Min. ID. (mm)	Ф48	Ф62
Length (mm)	1848	2050
Suitable casing size	5 1/2	7
Working differential pressure (MPa)	50
Working temperature (℃)	120
Connection thread	2 7/8’’ EUE	3 1/2’’EUE

Usage
This type of Packer is mainly used to stratified fracture, stratified acidification, or stratum separate operations by achieving some technical target.
Structure feature
By hydraulic setting, pull up string tools to unset Packer. Under tubing hydraulic pressure, setting piston move up to open limited system, which could push slip anchor move up to compress element and to achieve setting or anchor. Meanwhile, locking system is in locking position. When hydraulic pressure in tubing is released, slip anchor could not return back cause of locking position and keep of setting. Pull up of string tools, middle tube of Packer move with external parts to open locking position. Other parts return back by friction or spring, which to unset Packer.

Technical specification

Usage
This type of Packer is mainly used to oil recovery, water injection, fracture and acidification.
Structure feature
Run the Packer to determined depth, fill fluid into tubing, when the pressure is high enough, setting shear pin will be cut and setting piston compress rubber element. Then element is horizontally inflated, which could seal tubing & casing annulus. Packer has single locking system, which could prevent to unset after releasing. When filling fluid into tubing & casing annulus and increase to determined pressure, reverse well-flushing piston could be open. Fill fluid continuously, then could start reverse well-flashing operation. Pull up string tools could unset the Packer.

Technical specification

Size	Y341-115	Y341-148
Length (mm)	1230	1760
Steel body Max. OD. (mm)	Ф115	Ф148
Steel body Min. ID. (mm)	Ф50	Ф62
Setting differential pressure (MPa)	14~16
Working differential pressure (MPa)	35	25
Unset power (KN)	30~40	40~50
Working temperature (℃)	120
Connection thread	2 7/8’’ TBG	2 7/8’’ EUE

Usage
This type of Packer is mainly used to stratified fracture in middle or deep oil & water well, protect casing, stratified well testing, water plugging and etc.
Structure feature
Advanced structure, includes of anchor system, hydraulic locking, upward prevention system and bypass which could balance tubing & casing pressure automatically. Under high pressure (50MPa), Packer will not move upward, not block, not leak or fracture string not bend.
Technical specification

Mechanical setting load (KN)

130~160

Working differential pressure (MPa)

50

Working temperature (℃)

180

Mechanical setting load (KN)	130~160
Working differential pressure (MPa)	50
Working temperature (℃)	180

Usage
This type of Packer is used in casing, which for tubing & casing annulus and protecting casing. And used to HP acidification, fracturing, cementing, pressure testing and so on. According to string tools selection, could satisfy well servicing operation of finding and sealing of casing leakage.
Structure feature
Run Packer to determined depth, increase pressure in string tool, liquid enter into element through middle tube and slot. Element is inflated, which could seal tubing & casing annulus.
Release pressure to unset Packer. When differential pressure between tubing and casing disappear, rubber element return back by its spring, then to unset Packer.

Technical specification

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