Abstract
The article presents the analysis of sequential use of mobile percussive-rotary drilling sets with DTH hammer and bottom-hole cleaning by foam mud in construction of vertical sections along with at Kuyumbinsky oil field. On the basis of the analysis, an engineering solution is proposed to prevent disastrous mud loss that is the key factor of efficiency in implementation of resource-saving technologies.
Highlights
The analysis of the current situation in Russian oil and gas sector demonstrates a considerable shift in its development towards the regions of Eastern Siberia and Yakutia
One of the perspective engineering solutions for oil and gas drilling with mud loss is a sequential use of mobile percussive-rotary drilling sets with fixed drilling rigs and drilling mud circulation
Bottom-hole cleaning with gaseous muds was applied at various depths
Summary
The analysis of the current situation in Russian oil and gas sector demonstrates a considerable shift in its development towards the regions of Eastern Siberia and Yakutia. During 2006-2014, JSC Rosneft discovered six fields at the license blocks of Irkutsk Region: 2 oil-gas condensate fields (SeveroDanilovskoye and Savostyanov fields); 1 gas-oil field (Lisovsky field); 2 oil fields (Sanarskoye and Mazur fields); 1 gas field (Yuzhno-Danilovskoye field). On January 1, 2015 the total reserves of the above-mentioned fields amount to 477 million tons of oil and condensate and 192 billion m3 of gas [1]. Irkutsk and Yakutia gas production centers, with PJSC Gazprom as the main investor, are being built. One of the perspective engineering solutions for oil and gas drilling with mud loss is a sequential use of mobile percussive-rotary drilling sets with fixed drilling rigs and drilling mud circulation
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