Compact Drop Off Cdo Weatherford

Wireline ServicesCompact Drop-Off (CDO) ™ Weatherford’s Compact drop-off (CDO) is a through-drillpipe conveyance method used to deploy a Compact memory logging (CML) tool string. The tool string is run on wireline through the drillstring and dropped off in a no-go arrangement in the bottomhole assembly (BHA). The wireline is then recovered and the drillstring is pulled back to surface while recording data to memory. A drop-off float valve is included in the BHA to allow tools to pass through it for drop-off or pick-up and practically maintain well control at all times during the operation. Open Hole Conveyance Applications • Typically used as a through-drillpipe conveyance method in wells with challenging well conditions, such as: –– Ledges/washouts –– Creeping salts and swelling shales –– Differential sticking –– Key seating Features, Advantages and Benefits • The CDO reduces risk and eliminates repeated logging attempts associated with bad-hole conditions, saving time and costs. • Tools can be retrieved using the wireline, enabling early recovery of data or in the event of a stuck drillstring. • CDO technique can be combined with impulse technology to allow duplex communication. This technique enables pressure testing to be done using CDO. • Borehole conditioning hardware can be run in the BHA to clean the hole before the deployment of logging tools, reducing rig time during logging operations. • Full well control is maintained using a wireline blowout preventer (BOP) and dropoff float valve, providing greater efficiency. 2.25 (57 mm) weatherford.com 1 © 2010 Weatherford. All rights reserved. 8302.00 2 © 2010 Weatherford. IF API 17.S.5 in. Weatherford sells its products and services in accordance with the terms and conditions set forth in the applicable contract between Weatherford and the client.Wireline Services Open Hole Conveyance Compact Drop-Off (CDO) ™ Specifications General specifications System Recommended hole size Thread type Recommended makeup torque Maximum flow rate (tools landed) Maximum rotation rate (tools landed) CDO 650 > 7. 8302. Weatherford products named herein may be protected by one or more U. trademarks and service marks herein are the property of Weatherford and may be registered in the United States and/or other countries. (> 200 mm) 4.com. Specifications are subject to change without notice. and/or foreign patents. contact [email protected] ft/lb 10 bbl/min 30 rpm weatherford. available on request or at weatherford.com Weatherford products and services are subject to the Company’s standard terms and conditions. For more information contact an authorized Weatherford representative. For more information. All rights reserved.88 in.com. Unless noted otherwise.00 .