Drilling activity in most operations in Russia is a “controlled” schedule of events. This makes the management of change process extremely difficult and challenging should the fundamental well design conditions fail or are no longer applicable. With little or no planned contingencies, recovery is usually difficult with unplanned events. For turnkey projects the general contractor […]
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Casing and liner running and cementing operations in high angle wells with long open hole sections pose seemingly diverse sets of challenges irrespective of location and drilling environment. The fluvial loose formations predominant in the arctic region of Russia and most parts of Siberia provides more than adequate tests and constraints to modelling, understanding and […]
First combination run of EzeeGlider centralisers, specially fabricated NaviGATOR Sub and BridgeBUSTER reamer shoe successfully lands 245mm (9 5/8″) casing string from surface to over 3500m (11,118′) with over 65% of the casing string at 60 degrees inclination or more. Geopro proposed a cost effective solution incorporating careful placement of low friction rigid body EzeeGlider […]
On two wells in the Arctic Region of Russia, Geoproteks centraliser program and recommendations help clients land 245mm (9 5/8”) casing in two high angle and long step out wells. The strings were +.- 5000m and over 5500m long in each well respectively and the latter with about 300m of air column. Both drilling rigs […]
In the past estimating drilling performance or project performance for well engineering projects has been carried out in a combination of ways such as accounting for time based events that eventually result in costs or financial relationships. It is rather unfortunate, but the requirement within the industry still remains the quantification of projects and project […]
Earlier attempts to establish DD performance using the directional drilling difficulty Index (DDI) proposed by Oag & Williams1 is flawed and difficult to interpret. The philosophy behind the DDI relationship is based on the perception of a sample space. Thereafter a mathematical relationship between the “perceived” variables identified within the sample space was proposed.
Traditional performance metrics tend to relate drilling performance to the final cost of the well. Thus, decreasing unit drilling cost is considered a reflection of performance improvements. These benchmarking methods are based on cost exposure as measured by nonproductive time, cost per barrel of oil expected, cost per foot, and cost per 1,000 ft or […]
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