HOUSTON - November 11, 2002 - Baker Atlas has set the world record for the longest horizontal perforating operation in the Norwegian section of the North Sea.
A Baker Atlas crew, with the assistance of Baker Oil Tools staff, successfully ran a 2246-m (7367-ft) Horizontal Oriented Perforating SystemSM (HOPSSM) to perforate a total 1490-m (4888-ft) section using 4½” deep penetrating PERFFORM™ charges.
The guns were tubing conveyed using 188 swivel gun connectors to orient gun sections and negotiate deviations in the wellbore. Charges were oriented in the direction of maximum formation stress to minimize sand production.The gun design also allowed the operator to optimize production by effectively covering 6% more of the reservoir and decreasing the total area left unperforated across connections by more than 50%.
Baker Atlas launched the new Horizontal Oriented Perforating System after completing field testing with over 50 runs. HOPS is designed to reliably and efficiently perforate long intervals in highly deviated wellbores where the orientation of perforations is critical. Perforating gun sizes from 27/8” to 7” OD are available. The system is made up of specially phased, eccentrically weighted perforating guns and swivel gun connectors that allow the guns to rotate.
To date, the system has successfully been deployed in highly deviated wells to minimize sand production and avoid oil-water contacts. The orientation performance of the system has been proven using Baker Hughes’ Shot Detection Indicator Devices. One example verified an average perforation orientation accuracy of ±7.5° at a maximum build angle of 3.7°/30 m.
Baker Atlas, a division of Baker Hughes Incorporated, offers a complete range of downhole well logging services for every environment. Services include advanced formation evaluation, production and reservoir engineering, petrophysical measurements and geophysical data acquisition services. In addition, perforating and completion technologies, pipe recovery, and processing and analysis of open and cased hole data complete the service range. Additional information may be found at www.bakeratlas.com.
Baker Hughes is a leading provider of drilling, formation evaluation, completion and production products and services to the worldwide oil and gas industry.
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