MODEL: WC-AD1

PRODUCT NO.:  WC-20915


The Model WC-AD1 Tension Packer provides a compact, economical retrievable packer for use where a set-down type packer is impractical because of pressure requirements. Although designed primarily for water flooding, this packer can also be used for such pressuring operations as formation fracturing in shallow or low-fluid- level wells.
The Model WC-ADL1 Tension Packer size (45x2.90and 47x4.12) is large bore version of the WC-AD1Packer. Features and operational procedures are basically the same as those described for the WC-AD1Tension Packer.


Benefits & Advantages

  1. Short And Compact

Increases the efficiency of handling, shipping, and storing, as well as operations on the rig.

2.Rocker-Type Slip Design

Eliminates the need for extra drag blocks, slip tie links, and guide grooves, thus making possible not only shorter packers but ones permanently free from stuck or cocked slips.

3.Easy To Operate

A simple and reliable J- Slot mechanism, actuated from the surface by tubing rotation, makes the packer easy to set and release.

4. Packing Element System

For temperatures up to 250°F, the standard 80 hard element can be used and for applications above 250°F, a 90 shore element is available.

5.Full Bore

Larger than tubing drift diameter. Any Instruments capable of passing thru the tubing can be run thru the packer. Full ID also assists in preventing screen-out and subsequent plugging of the tubing during fracturing.

OPERATION

TO SET PACKER

Run the packer to desired setting depth, making the last movement down before attempting actual set. Rotate the tubing to the right one-quarter turn at the tool, and pick-up on the tubing string to obtain pack off.

Required   Upstrain On Tubing   String To Set Tension Packers

 

 

 

WC-AD1

WC-AD1
WC-AD1

SIZE TOOL

UPSTRAIN (lbs)

41

2,000

    43 &45

5,000

47

7,500

        49-55

15,000


To Release Packer

Lower the tubing string at least one foot more than is necessary to remove the applied tension, (This will move the J-Pin to the top of the J- slot), and rotate to the left sufficiently to obtain one quarter turn at the packer.


Emergency Release

For use under extreme conditions, two safety release method are available.

  1. These Packers have an emergency Shear Ring installed on the Body, below the Guide. Application of from 25,000 to 50,000 lbs. Tension (dependent on the strength of Shear Ring) will shear the Shear Ring, permitting the Cone, Packing Element, and Guide to Drop against the Bottom Sub where they will remain as the packer is retrieved from the well.
  2. If it is not desirable or practical to pull 50,000 lbs through the tubing, apply approximately10,000 lbs. Strain and rotate the tubing 20 or more turns to the right. This unscrews the Left-Hand safety thread between Top Sub and Body and allows removal of the tubing string and Top Sub.  To remove   the remaining portion of the packer, install a set of Jars made up above an overshot, socket or spear (or the Top Sub), engage the Packer Body, and actuate the Jars to free the Packer Body from the casing.

SPECIFICATION GUIDE

Casing               Packer Preferred
Range of
Casing ID’s
Guide
Ring OD
Packing Element OD Absolute Minimum Collapsed Diameter of Slips Absolute Maximum Casing ID Slip
Travel
Thread Specifications
Box Up x
Pin Down

OD

T&C
Weight
Lbs/Ft

Size

Model

Bore

Min

Max

4

9.5-11.6

41A

AD1

1.895

3.428

3.548

3.188

3.374

3.548

2-3/8 OR 2-7/8OD EU8Rd

4-1/2

12.6-15.1

41B

3.697

3.958

3.609

3.958

9.5-13.5

43A

3.910

4.160

3.771

3.719

3.787

4.170

5

15-18

43B

4.161

4.408

4.125

3.938

4.103

4.409

11.5-15∆

43C

4.408

4.560

4.250

4.156

4.255

4.561

5-1/2

26

20-23

45A2

1.978
OR
2.441

4.670

4.778

4.500

4.375

4.543

4.966

14-20∆

45A4

4.778

5.012

4.641

13-15.5∆

45B

4.950

5.190

4.781

4.688

4.825

5.248

5-3/4

22.5

1.978

6

26

20-23

45C

5.191

5.390

5.062

4.938

5.059

5.482

15-18

45D

5.391

5.560

5.156

5.197

5.620

6-5/8

34

45E2

5.561

5.595

5.406

5.250

5.449

5.872

28-32

45E4

5.596

5.791

5.484

24

47A2

2.441

5.830

5.921

5.656

5.500

5.653

6.262

2-7/8OD EU8Rd

7 38
6-5/8

17-20

47A4

5.922

6.135

5.812

7

32-35

26-32

47B2

6.094

6.276

5.968

5.781

5.919

6.528

20-26∆

47B4

6.276

6.456

6.078

17-20∆

47C2

6.456

6.538

6.266

6.125

6.357

6.966

7-5/8

33.7-39

47C4

6.539

6.765

6.453

24-29.7

47D2

6.766

7.025

6.672

6.500

6.607

7.216

20-24∆

47D4

7.025

7.125

6.812