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OIL & GAS

CNOOC Reduces Comissioning and Startup Time on its LD 10-1 Project using Emerson’s PlantWeb® Architecture with FOUNDATION fieldbus™ Technology

RESULTS • Reduced time from 30 to 7 days for commissioning control system • Started production 62 days ahead of schedule • Completed commissioning of 208 fieldbus instruments in 31 network segments within a single day • Reduced instrument diagramming time by 70% through simplified design • Reduced use of analog cards and terminal modules by 75% • Reduced instrument cables by 75%, greatly decreasing the cost for cable and installation • Assigned PID control functions to the field level

APPLICATION “Because of the use of the intelligent device The LD 10-1 offshore oil platform was built to extract oil offshore management software and circuit in the Liaodong Gulf of Bohai . The project consists of a central monitoring software, we are able to learn platform of eight legs and a wellhead platform of four legs with a pier everything in the control room in case between the two platforms. something is wrong with an intelligent device. Our diagnosis of the trouble can be CUSTOMER very accurate and timely, and we can take The China National Offshore Oil Corporation (CNOOC), one of China's three major national oil corporations, was founded in 1982 as a mega actions earlier. This greatly saves time for enterprise directly under the State Council. As the biggest offshore oil maintenance.” and producer in China, CNOOC cooperates with foreign Li Jin countries for the exploitation of offshore oil and natural gas resources Platform Instrument Engineer of LD 10-1 Project in China’s territorial .

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CHALLENGE CNOOC has adopted a progressive strategy of employing new automation technologies as the best way to ensure that offshore projects are brought into production as quickly as possible with lower operational and maintenance costs as well as reduced manning levels. Automation technologies adopted for this purpose are expected to reduce the time required for engineering design, , and equipment commissioning. In addition, the selected automation system should be capable of optimizing production assets through real time monitoring and management of intelligent field devices in order to ensure stable operation of production installations.

SOLUTION Emerson’s PlantWeb digital plant architecture, based on the FOUNDATION fieldbus technology, was adopted for the LD 10-1 offshore oil platform to take advantage of the economic benefits “Commissioning of the fieldbus system of the LD 10-1 produced by these advanced technologies. The automation oilfield CEP/WHPA platform was started 17th solution includes: December 2004, and the whole task was finished within only one week. Commissioning of a system of • DeltaV™ process automation system this scale using conventional solutions might require • DeltaV Inspect control circuit condition monitoring software up to 30 days. The shortened commissioning time • AMS™ Suite: Intelligent Device Manager software played an active and important role in advancing the deadline for the platform to go into operation.” • Rosemount® pressure and temperature transmitters (fieldbus compatible) Xu Weihua Senior Engineer • MicroMotion® Coriolis Mass flowmeters (fieldbus compatible) CNOOC Research Center • Fisher® control valves with FIELDVUE® Digital Valve Controllers (DVC5000f )

The FOUNDATION fieldbus technology was adopted for this project to help control the high cost of offshore oil platform construction. This resulted in a significant 75 percent reduction of instrument cables, wiring terminals, and cabinets as compared with conventionally wired field instruments. The amount of space required for the fieldbus components was reduced enormously, a major benefit on any offshore platform. The fieldbus solution also greatly simplified the engineering design through the use of the Segment Design Tool that automatically produces drawings and simplifies design procedures, saving time on the project design schedule.

For more information: www.AP.EmersonProcess.com/PlantWeb [email protected] OIL & GAS

“The PlantWeb digital plant architecture, which is The ease of installing and commissioning the fieldbus devices resulted based on FOUNDATION fieldbus technology, has in completing this phase of construction very quickly and getting the carried us to a higher stage. Cables, wiring, and platform into operation 62 days ahead of schedule, exhibiting the cabinets were saved; commissioning time was edge of FOUNDATION fieldbus technology. reduced; and the schedule of the overall project ensured. Fieldbus played a role that we can never Utilization of the AMS Device Manager was very helpful in reducing afford to ignore, helping the platform get into the time for circuit commissioning. During the project construction operation 62 days in advance! And even more, the period, one instrument engineer needed only one day to complete system runs stable and reliable, providing rich the commissioning of 31 network segments encompassing 208 information through the built-in intelligent device management software and circuit monitoring fieldbus devices. functions. The maintenance people and operators

Since the control function with FOUNDATION fieldbus devices can be are made aware of everything about the devices and control circuits throughout the installation without passed down to field level, the PID function of 52 control circuits is the need to go outside.” now performed at field level, thus boosting the safety and accuracy of the control system and reducing the operating load on the controllers. Bai Wenzhu Platform Service Supervisor of LD 10-1 Project This allows controllers to perform more advanced control functions.

The DeltaV Inspect software also has a monitoring function. This provides process operators and maintenance personnel with real time running conditions on control circuits and devices, enabling them to increase the stability of device operations.

With the latest technologies provided by Emerson, the LD 10-1 offshore oil platform has achieved its cost-containment objectives, and output is exceeding estimates. The A11 well has become the first high-yield self-supporting well in the history of Bohai Sea, producing more than 7,000 barrels of crude oil per day.

Emerson Process Management The contents of this publication are presented for informational purposes only, and while every effort has been Asia Pacific Pte Ltd made to ensure their accuracy, they are not to be construed as warranties or guarantees, express or implied, 1 Pandan Crescent regarding the products or services described herein or their use or applicability. All sales are governed by our Singapore 128461 terms and conditions, which are available on request. We reserve the right to modify or improve the designs or specifications of our products at any time without notice. T (65) 6777 8211 F (65) 6777 0947 PlantWeb, DeltaV, Rosemount, Fisher, FIELDVUE, Micro Motion and AMS Suite are marks of one of the Emerson [email protected] Process Management group of companies. All other marks are the property of their respective owners. www.AP.EmersonProcess.com © 2008 Emerson Process Management Asia Pacific. All rights reserved. The Emerson logo is a trademark and service mark of Emerson Electric Co. Printed in Singapore.