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发明公开
CN106281291A 一种用于加速井下可溶工具溶解的液体 无效 - 驳回

一种用于加速井下可溶工具溶解的液体
摘要：
本发明属于油气田开发过程中的压裂施工领域，涉及一种用于加速井下可溶工具溶解的液体，由以下物质按重量百分比混合配制而成，包括0.1wt.%～8.0wt.%的酸、0.1wt.%～5.0wt.%的强酸弱碱盐和0.5wt.%～4.0wt.%的缓蚀剂，余量为水，各组分的重量百分比总和为100%。在压裂施工完成后，通过加入该液体可实现可溶工具溶解时间的人为控制，避免了井下环境不同带来的工具溶解时间的不确定性，可实现井下可溶工具溶解时间的人为控制，精细化施工时间，极大地提高施工效率，为实现高效、快速、可控地完成施工提供了有效途径。此外，该液体对油套管不造成损伤，成本低廉，易于现场配置，可大规模推广应用。
摘要（英）：

The invention belongs to the field of fracturing construction in the process of oil-gas field development and relates to a liquid for accelerating downhole soluble tool dissolving. The liquid is prepared by mixing, by weight, 0.1-8.0wt.% of acid, 0.1-5.0wt.% of strong-acid weak-alkali salt, 0.5-4.0wt.% of corrosion inhibitor and the balance of water, wherein the sum of weight percentage of components is 100%. After fracturing construction is completed, artificial control on soluble tool dissolving time can be realized by adding the liquid, so that uncertainty of tool dissolving time caused by different downhole environments, artificial control on downhole soluble tool dissolving time can be realized, construction time is refined, construction efficiency is greatly improved, and an effective approach is provided to complete construction efficiently, quickly and controllably. In addition, the liquid is free of causing damage to oil casings, low in cost, easy in on-site blending and supportive of large-scale popularization and application.

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