Operators, pinched by budget cuts, are demanding improved accuracy and quality in well placement. No matter these market dynamics, however – or perhaps because of such market dynamics – directional drilling technologies appear to be evolving faster than ever. By year-end 2017, the market value of directional drilling services had risen to $9.6 billion, driven by increases in drilling activity and deepwater investments, as well as by longer lateral lengths in the US, Mr Lokam said. However, after three consecutive years of losses, the market appears to be reversing course. Most of these reductions were brought about by project cancellations in the low oil price environment, according to Rajashekar Lokam, Research Analyst at Mordor Intelligence. In terms of market value, directional drilling fell from $16.55 billion in 2014 to $10.95 billion in 2015, then shrank further in 2016 to just $6.71 billion. The global directional drilling services market has taken a big hit during this downturn. In addition, liners were run successfully without any problem to the target.Service providers also advancing rotary steerable systems to drill more reliably in harsh environments, lower cost of operationsīy Eva Vigh, Editorial Coordinator After two consecutive years of falling market values, the directional drilling market appears to have started recovering in 2017. No stuck pipe has been recorded during the drilling of horizontal sections. All the data including torque, drag, lubricity factor, solids lubricants concentrations and ROP have been recorded versus depth to benchmark drilling performance.įinally, application of different types of solids lubricants have been approved and showed ROP improvement especially during sliding mode in hard carbonate rocks in the reservoir. In addition, lubricity factor of the filter cake has been measured during drilling by using a lubricity meter to be kept in the proper range by changing the type and concentration of solids lubricants in the drilling fluids. Drilling fluids rheological properties were monitored and the effects of applying these solids lubricants was the reduction of torque and drag values. This paper reviews the application and the use of different types of solids lubricants in drilling fluids during drilling directional and horizontal intervals as an operational experience. This limits required sliding from plan and decrease ROP with the possibility of stuck pipe. As the result, high torque and drag was observed during drilling in rotation and sliding mode. Conventionally, liquid lubricants including mineral and vegetable types have been used to reduce the torque and drag during directional drilling. Besides the technology for drilling directional and horizontal intervals, drilling fluids play an important role to reach the target. Additionally, it will reduce the effect of both semi-liquid hydrocarbon condensate and vertical sediment barriers.Ĭurrent advancements for the development of oil and gas reservoirs require drilling directional and horizontal wells. The directional drilling will become perpendicular to the fracture surfaces and allow the gas and the condensate to flow into the well from all directions. However, if used the third type of drilling, directional, that is perpendicular to the hinge line and parallel to the beddings of both flanks of the anticline gas production will increase more than the horizontal drilling. Horizontal drilling was parallel to both hinge line of the anticline and micro fracture surfaces that was conducted and doubled the gas production of the vertical well multiple times. Two types of drilling have been used for experimental gas production, vertical and horizontal. The gas and condensate have been stored mainly through the micro fractures. ![]() The sandstone layers accommodate the formation of micro fractures that play a major role to increase the secondary porosity. The brittle sandstone layers of the reservoir are interbedded with ductile units of shale. These microfractures, whether they are outer arc or release fractures, are parallel to the hinge line of the anticline and perpendicular to the bedding planes. The uplifting and folding events developed micro-fractures represented by tension cracks. The stratigraphic sequence of the Silurian and older strata was subjected to an uplift that developed a gentle NW-SE trending anticline. ![]() The objective of this research is to use structural reservoir characterization for hydrocarbon recovery. ![]() The field is a faulted anticline that consists of the Ordovician Khabour Formation. Akkas Field is a structural trap with a sandstone reservoir that contains proven gas condensate.
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