Execute
The system delivers repeatable precision for casing exits. Operators, drillers, and any authorized stakeholder can view planned or anticipated parameter changes. The system can also calculate “what-if” scenarios based on real-time well data. And with offsite access to the same real-time data, Weatherford consultants can run additional “what-if” scenarios while the operator remains fully engaged on the job. By combining these scenarios with real-time downhole data, the system communicates key casing-exit events and their overall impact to the job before they happen.
BRING THE EXPERIENCE OF 6,000 JOBS TO YOUR WELL
The QuickCut casing-exit system is feld-proven all over the world The QuickCut casing exit system is designed for effciency, which reduces the time and cost needed for sidetracking and for extended-reach, horizontal, and infll drilling. Our QuickCut casing-exit technologies combine a single-trip, full-gauge milling system with a single-angle concave that incorporates multiple anchor options.
With variations that include standard and shallowangle concaves, the QuickCut system offers operational versatility. The tool can create high- and low-side casing exits and is suited for a wide range of operations, including accessing bypassed or behind-pipe reserves in mature wells, horizontal installations on wells with high dogleg severity (DLS), and multilateral installations in which whipstock retrieval is critical.
The versatility of our QuickCut system enables executing your well plans unhindered by tool capability. Whether you plan for short-radius or extended-reach drilling, our system creates a smooth transition from the parent wellbore into the lateral section.
The QuickCut casing-exit system advantage
?Delivers feld-proven reliability in all casing-string designs
?Reduces rig time with a safe, quick rig ?oor makeup
?Provides operational effciency—orient, anchor, mill, and rathole in one trip
?Increases penetration rates with an aggressive lead mill geometry
?Offers multiple anchor options, including mechanical bottom trip, hydraulic set, and integral packers
?Includes a patented integral lug that protects the whipstock during cut out and accurately guides the lead mill through the casing wall, which leaves a window that is virtually undetectable
Case study
QuickCut Casing-Exit System and AccuView? Software Save 11 Hours of Rig Time—a Reduction of 75% from Previous Jobs
LOCATION
Southwestern U.S.
FIELD
San Juan Basin
FORMATION
Sand, shale
WELL TYPE
Onshore, development, gas
HOLE SIZE AND ANGLE
4.75 in., 10°
CASING SIZE AND TYPE
5-1/2 in., 17 lb/ft (25.2 kg/m)
DEPTH OF KICK-OFF POINT
2,603 ft (793 m)
LENGTH OF MILL RUN
13.3 ft (4.05 m)
MILLING FLUID
Water based
MILLING RATE OF PENETRATION
6 ft/hr (1.83 m/hr)
PRODUCTS/SERVICES
?QuickCut casing-exit system
?MultiCatch anchor
?AccuView casing-exit-optimization software
Objectives
?Exit 5 1/2-in. casing in a single trip and reduce mill time to less than 12 hours. Three previous casing exits in the well using equipment from other vendors averaged more than one trip, and the average mill time for each casing exit was 14 hours.
?Use a retrievable, hydraulic-set system to avoid the additional time and costs associated with mechanically setting the whipstock anchor using a bridge plug and to allow for future access to the main bore.
Approach
?To perform the casing exit, Weatherford recommended the QuickCut casing-exit system along with the hydraulic MultiCatch? whipstock anchor and AccuView casing-exit-optimization software. Weatherford also provided a subject-matter expert (SME) to monitor the operation remotely from Houston, Texas, in real time.
?Rig personnel ran the whipstock anchor to the kick-off depth of 2,603 ft (793 m) and oriented the anchor. However, the anchor would not set at the flow rate calculated during the pre-planning phase. Using AccuView software, the Houston-based SME was able to access real-time data and determine a solution while the supervisors on location maintained rig-floor operations. Once the SME identified a solution, the anchor set without further issues.
?As the QuickCut system milled the window and rathole, AccuView software displayed all operational parameters in real time to both the on-site supervisors and the SME in Houston. Parameters could be adjusted on the fly to minimize the load applied to the milling assembly, which helped to maintain a better-than-average rate of penetration of 6 ft/hr (1.83 m/hr) throughout the process.
?The QuickCut system milled the window and rathole in a single trip and in just over 3 hours, which was a record for the field and 9 hours faster than the client had required.
Value to Client
?The issue encountered when setting the whipstock anchor would typically have required tripping out of the hole or would have resulted in significant downtime associated with phone calls between the job site and the Houston-based SME to discuss the problem. Because AccuView software displayed operational data in real time and the Weatherford SME identified an efficient solution, the client incurred no nonproductive time.
?The operation had zero recorded safety incidents.
?The QuickCut system reduced mill time by 75% (11 hours) compared to previous casing exits in the well.
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