Archive | Completing the Well

New liquid microsphere design simplifies HPL cementing, enhances density flexibility

Posted on 03 November 2009 in 2009, Completing the Well, July/August

As wells become increasingly complex, so do the cementing solutions required to support the casing strings and reliably isolate pay zones for long-term…

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Beyond bumping the plug: Wyoming project improves cementing by measuring real value

Posted on 03 November 2009 in 2009, Completing the Well, July/August, Onshore Advances

Although cementing costs typically represent less than 10% of total planned wells costs for US onshore operations, failure to get good zonal isolation…

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Deepwater cement design optimized for record-length expandable liner in Gulf of Mexico

Posted on 30 October 2009 in 2008, Completing the Well, September/October, The Offshore Frontier

By Don Schultz, Greg Pollard, Nexen Petroleum; George Fuller, Joey Langlinais, Michael Serio, Jasen Bradley, Halliburton During a sidetrack operation out of 9 7/8-in. casing on a deepwater well in Green Canyon Block 243, Gulf of Mexico, unexpected hole conditions were encountered that required the use of an additional casing string. The decision was made […]

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Managing retrieval of triple-zone intelligent completions in offshore extended-reach well

Posted on 30 October 2009 in 2008, Completing the Well, September/October, The Offshore Frontier

By L. Izquierdo, T.U. Ceccarelli, Schlumberger; G.P. Hertfelder, K. Koerner, Plains E&P; S. Pace, Chevron An independent operator offshore California has successfully achieved triple-zone intelligent well completions in an extended-reach drilling (ERD) campaign in its Rocky Point field. To date, two workover interventions have been performed in five deployments in the field, of which three […]

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New method developed to treat individual layers in cemented cased-hole completions

Posted on 30 October 2009 in 2008, Completing the Well, July/August

By Gary Rytlewski, Schlumberger A new method of completing multiple-layer formations has been successfully tested in the United States and Canada. This new method places sliding sleeve valves in the casing string and completes the well with normal cementing operations. The sliding sleeve valves are opened one at a time to fracture layers independently without […]

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Deep Gulf of Mexico completions push equipment to their limits – and maybe beyond

Posted on 07 October 2009 in 2009, Completing the Well, Features, September/October

As the Region moves into production phase, operators are taking careful steps to find and fill equipment gaps.

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Innovations filling in technology gaps in deepwater Gulf of Mexico completions

Posted on 17 May 2009 in 2009, Completing the Well, Features, May/June

With its wealth of resources, the Gulf of Mexico holds great promise for oil and gas operators as they push the envelope to tap deeply buried hydrocarbons. But those deep…

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Review & update: Expandable technologies gain traction through accumulated experience

Posted on 12 March 2009 in 2009, Completing the Well, March/April

As expandable technology matures, it has become a larger part of the wellbore construction toolbox. Operators no longer see expandables as problem-solving contingency tools, in part because of service companies’ aggressive development…

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Next-generation perforating system enhances testing, treatment of fracture stimulated wells

Posted on 18 November 2008 in 2008, Completing the Well, November/December

Ineffective perforation can adversely affect the completion of fracture stimulated wells in several ways. If the interval is to be tested prior to fracturing, a clean connection to the formation is required to facilitate meaningful data acquisition…

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New fracture model takes into consideration load history, temperature, Poisson’s effect

Posted on 18 November 2008 in 2008, Completing the Well, November/December

The fracture equation used in the oil and gas industry is derived from the Kirsch equation for the hoop stress. Due to its simplicity, it is almost exclusively used for prediction of fracture initiation pressures. However, it is not useful for analysis of load history…

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