But it has limitation in complexformation drilling for its natural thermal instability and high sensitivity to salt contamination, whereas tannin could he modified to widen its using fields.
Several examples have shown that accurate evaluation of complexformation lithology changes can be achieved, providing reliable geological parameters for exploration and development.
通过实例分析,正确评价了复杂地层的岩性变化,为石油勘探开发提供了可靠的地质参数。
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In this paper, through the analysis of complexformation and leakage features of adjustment well in Zhongyuan Oilfield, the result shows that antileakage is key to drill successfully adjustment well.