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防漏堵漏材料是产层防漏堵漏与保护油气层的关键。通过试验研究出一种适应油气层的防漏堵漏材料──XT堵剂，组分由4种材料组成，其中有不同粒度的颗粒材料，又有不同特性的纤维材料。试验结果表明，XT堵剂是一种高失水、高酸溶性暂堵剂，对钻井液性能影响很小，是产层较理想的防漏堵漏材料。
Leak-proof plugging material is the production layer leak plugging and protection of the key oil and gas layers. Through experiment, a kind of leak-proof plugging material that adapts to the oil and gas layer is developed - XT plugging agent, which consists of four kinds of materials, of which different granularity granular materials and different characteristics of fibrous materials. The test results show that XT plugging agent is a kind of high water-losing and high acid-soluble temporary plugging agent, which has little influence on drilling fluid properties and is an ideal leak-proof plugging material in the production layer.