Baker Hughes, a Ge Compnay, LLC

Richard R Lafitte

Scott F Donald

Joseph E Sheehan

Dennis M Collins, Jr

Mihai Marcu

A main bore is drilled and a treatment assembly is located. A packer is located to support a whipstock for drilling the lateral. This packer serves as a lower seal on a main bore diverter. The whipstock is installed on the packer and a mill drills a window and the lateral. The mill is pulled and the whipstock removed with a fixed lug tool. A bottom hole assembly is run into the lateral which includes a diverter that is landed by the window. If cementing is called for it is done at this time. A top string is installed that isolates the upper casing. The lateral is treated with the main bore isolated. The diverter is retrieved through the top string. The main bore diverter is run in through top string and landed in the junction with the window and lateral isolated. The main bore diverter is removed through the top string. The treatment bottom hole assembly has a series of sliding sleeves operated by a single size ball.

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Houston, TX, United States of America

Richard R Lafitte