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AOT International Ltd contactaotint.com www.aotint.com MULTI-ACTIVATION CIRCULATION BYPASS SUB TECHNICAL BROCHURE SIZE: 4 ¾ to 9 ½ MODEL: AOT-CBS-MA MULTI ACTIVATION CIRCULATION BYPASS SUB The AOT-CBS-MA Multi-Activation Circulation

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01
AOT International Ltd • contact@aotint.com • www.aotint.com MULTI-ACTIVATION
CIRCULATION BYPASS SUB TECHNICAL BROCHURE SIZE: 4 ¾ to 9 ½
MODEL: AOT-CBS-MA MULTI – ACTIVATION CIRCULATION BYPASS SUB

The AOT-CBS-MA Multi-Activation Circulation Bypass Sub is a ball actuated circulation bypass sub which can be activated and deactivated multiple times in a single trip. The tool is pressure operated and is designed to close the bypass ports automatically in the case of pressure loss. In addition to the standard activation and deactivation cycles, the bypass sub can be locked with one port left open to the annulus.

Standard applications include:
- LCM pumping and cement squeezing
- Acidizing and stimulation operations
- Hole cleaning and cutting removal
- BOP stack jetting and cleaning
Locking the tool open allows:
- Pulling the string out dry with blocked BHA
- Filling the string while tripping in hole
- Reverse circulation operations<br>
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TECHNICAL BROCHURE MULTI-ACTIVATION
CIRCULATION BYPASS SUB SIZE: 4 ¾ to 9 ½
MODEL: AOT-CBS-MA AOT International Ltd • contact@aotint.com • www.aotint.com<br>
03
TECHNICAL BROCHURE MULTI-ACTIVATION
CIRCULATION BYPASS SUB SIZE: 4 ¾ to 9 ½
MODEL: AOT-CBS-MA AOT International Ltd • contact@aotint.com • www.aotint.com NOTE:
1 Additional sizes and premium connections available upon request
2 Max Flow Rate calculated using Sea Water at surface<br>