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Analysis of complications and proposal of measures to prevent adverse events during drilling activitiesстатья
- Авторы: Sagova Zuzana, Ivanova Tatyana Nikolaevna, Korshunov Aleksander Ivanovich, Bozek Pavol, Koretckiy Vladimir Pavlovich
- Журнал: Acta Montanistica Slovaca
- Том: 30
- Номер: 2
- Год издания: 2025
- Издательство: Acta Montanistica Slovaca
- Местоположение издательства: Czech Republic
- Первая страница: 373
- Последняя страница: 382
- DOI: 10.46544/AMS.v30i2.08
- Аннотация: While drilling slant holes, flat holes, or designer wells, drilling operators are faced with extra work in preparing the borehole for the landing. For example, during the trip, it is difficult to move drilling tools along the borehole. As a rule, the technology selection measures carried out at drilling enterprises enable the landing of a casing column in a single run or reduce the time required for preparing the borehole, as well as decrease the construction time of wells during the casing landing. Nevertheless, the reduction of extra work in the process of preparing the borehole for the landing is an urgent problem.The completion of wells includes their fastening, landing, and casing cementing jobs. However, not in all cases does landing the casing strings go without complications. The main complication during the landing of the casing strings is their inability to extend along the borehole, resulting in their non-admission.The primary reasons for the occurrence of slacking off, tight pulls, and seizures are the abundance of clay minerals, the discrepancy between the properties and composition of the drilling and washing fluid, and the flushing mode dictated by the geological and technical conditions of the formation. Seizures are the most common and serious complications during drilling operations.
- Добавил в систему: Коршунов Александр Иванович