Sidetrack Services


We offer several effective solutions for sidetracking in a cased well as window milling or continuous casing section milling.

DLS provides window milling services in the casing strings of all sizes ranging from 140 to 245 mm.

The service is performed by highly qualified specialists with many years of practical experience in the window milling in the casing strings.

During the design phase, we pay special attention to the next stage of the cycle of well construction. We choose the optimal diameter and exclude the risk of failure of a bottom-hole assembly (BHA) for drilling to go through the milled window.

We have successfully mastered and applied window milling technology in the construction of multilateral wells. The experts DLS have milled more than 50 wells.

The rate of growth in our service supporting window milling in the casing string clearly indicates the quality and efficiency of our service.

DLS provides a full range of services for sidetracking, including installation and orientation of the whipstock, window milling, drill bit service, down-hole drilling motor service, directional drilling using our own telemetry system while drilling, jars, elements of BHA, as well as the drilling fluid service.


DLS offers high-performance downhole tools for your hole enlargement needs, we provide services for reaming operations of any difficultyes with using own tools.


Coring is the service necessary to study the geological conditions of the formation.

Directional Drilling

DLS offers expert directional drillers and proven technologies to provide the trajectory control needed to drill the well correctly, the high-quality hole required to successfully run and cement casing, and the precise well placement to optimize production and maximize recovery – all leading to drilling optimization for optimal efficiency and cost savings.