Page 39: of Offshore Engineer Magazine (Jan/Feb 2014)

38 40

subsequent strings. the dogleg optimized for the completion

Fig. 2: Cased hole whipstock

Drilling

The operation involved running string, the customer was able to eliminate system the whipstock system in the hole and ? ve days of rig time and signi? cantly anchoring it at the planned depth and reduce costs in revitalizing this aging

Multicycle bypass valve orientation. Parameter recommendations well. As a result of the success of the from the pre-job modeling were used to project, the operator plans to deploy the complete milling of the window. The whipstock system with dynamic model-

Bi-mill milling operation left a 15-ft rathole to ing on all future workovers where a new accommodate the BHA. After a trip to intermediate barrier casing and liner change out the BHA, the sidetracked well string are necessary. was drilled to section total depth.

The 17-in. liner with a maximum outer

Jimmy Land is the Global Business

Drill collar diameter of 17.2-in. was then assembled

Manager for the Drilling Tools & Remedial and installed; the largest ever run through segment at Schlumberger. He has been 20-in. casing, setting a world record. The in the role since March of 2010. Jimmy shoe track passed over the whipstock and joined the SERVCO division of Smith through the window within the Runner

International in 1979 and has since held program’s predicted drag, which was moni- a variety of senior operations positions tored as the liner was being installed. The in Louisiana and Texas. He has a BA in

Whipstock slide

DLS predicted by the Runner program and

Political Science with a minor in Business

Running tool the actual DLS matched, as con? rmed by from McMurry College, Abilene, TX.

gyro survey data.

By isolating the damaged 20-in. pipe, David Moran is the SETC Advisor for Bit mechanically anchoring the whipstock Selection and Real Time Optimization in the original 20-in. casing, and mill- at Schlumberger. He has been in the role ing the full-gauge 18 ½-in. window with since 2010. David began working in the oil and gas industry in 1980, and joined

Expandable anchor

Smith International in 1991. He has a

The TrackMaster CH system’s bi-mill con? guration and expandable

BS in Geology from Skidmore College, anchor provided the ? exibility to mill a clean, full-gauge 18 ½-in.

Saratoga Springs, New York.

window in the 20-in. casing, which allowed running the 17-in liner.

25th International

Oil Field Chemistry

Symposium

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New challenges facing production chemistry

Specifcally focus on corrosion, separation and deposition

New technical challenges associated with new felds developments

Lessons Learned from our existing mature and late life felds

Excellent networking opportunities in informal environment

More information at

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Technical and Scientifc Professionals

Tel: +1 201 825 1400 ®

Toll Free: 800 526 5330

Ramsey, NJ USA [email protected] oedigital.com January 2014 | OE 41

Tekna_11539_Offshore Engineer annonse_STA°ENDE_v2.indd 1 18.12.13 10:11 040_OE0114_Drilling_Cased Hole.indd 41 12/19/13 5:05 PM