StageFRAC
SIMPLE, EFFICIENT, AND EFFECTIVE
StageFRAC services enable multistage hydraulic fractures of an uncemented completion in one pumping treatment.
Openhole packers are run on conventional casing to segment the reservoir with ball-activated sleeves placed between each set of openhole packers.During pumping, balls are dropped from the surface to shift each sliding sleeve open and isolate previously frac-tured stages.
This mechanical diversion combined with
Schlumberger advanced fracturing fluid systems allows for precise fluid placement, complete zonal coverage, and greater effective fracture conductivity.The StageFRAC service also offers a relatively simple completion: The production casing is not cemented,
there are no perforating operations, no bridge plugs are required for isolation, no overflushing of the stimulation treatment is needed, and no intervention is required once stimulation is completed. Finally,the entire wellbore is fracture stimulated in one pumping operation, reducing cycle times from days to hours.
The service permits selective opening and closing of the ports to shut off unwanted fluids, thus maxi-mazing well production life.
FIELD-PROVEN TECHNOLOGY
Since the first StageFRAC well was completed in June of 2002, the technology has been used to complete more than 2,750 stages in more than 1.25 million ft of open hole, and more than
APPLICATIONS
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Hydraulically fractured horizontal,deviated, and vertical wells I
Openhole and some cased hole completions
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High-temperature, high-pressure,H 2S, and CO 2environments I
Sandstone, carbonate, shale, and coal formations
BENEFITS
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Maximize reservoir productivity with up to 17 stimulation stages in one wellbore
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Cut completion times
from days to hours and shorten time to market
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Maximize well longevity by shutting out unwanted fluids I
Reduce fracture fluid damage through immediate flowback
FEATURES
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Improved access to natural fractures
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Ability to space sleeves at optimal distances as dictated by reservoir conditions
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Post-stimulation intervention not required
I Single, continuous operation I
Maximized stimulation coverage in horizontal wells I Reliable isolation in open hole I
Rigless operations during fracturing
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Sleeves that can be shifted to assist with reservoir management
Maximize reservoir drainage
The StageFRAC*†multistage fracturing service provides effective reservoir drainage through multistage fracturing of open-
hole wellbores and reduces completion times from days to hours.
The mechanical openhole packer with tandem elements is rated to 68.9 MPa [10,000 psi] and 218 degC [425 degF].
/reservoircontact
†Incorporating Packers Plus ®
technology
*Mark of Schlumberger
Copyright © 2007 Schlumberger. All rights reserved. 07-ST-028
StageFRAC
The Galaxie stimulation vessel mobilizing to treat the first StageFRAC job performed offshore West Africa.。