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随着石油勘探开发的不断发展,勘探难度不断增加,对石油勘探的要求也在不断提高,岩心作为石油勘探开发过程中取得的最直接、最完整的地层资料,岩心质量成为了目前勘探开发关注的重点,因为低质量的岩心有可能会造成对油气田开发方案、增产方案的失效,并带来巨大的经济损失。本文通过研究发现,取心钻头的回旋现象是造成岩心质量差的一个重要原因,通过回旋现象开始分析研究,寻找回旋现象的发生原因,并提出了可行性的解决策略,最后达到提高岩心质量的目的。
With the continuous development of petroleum exploration and development, the exploration difficulty is increasing and the requirements for petroleum exploration are also increasing. As the most direct and complete formation data obtained during petroleum exploration and development, core quality has become the focus of current exploration and development Because of the low quality of the core may result in the development of oil and gas fields, the failure of stimulation programs, and bring huge economic losses. In this paper, we find that the coning of coring bit is one of the important reasons for the poor quality of core. Starting from the analysis of the phenomenon of maneuvering, looking for the cause of the maneuvering phenomenon and putting forward a feasible solution strategy, and finally to improve the core quality purpose.