一种油田井下作业用复合充填工具
By designing adjustment controls and pressure-sensing components in the filling tool, the problem of the anchoring device being susceptible to pressure changes was solved, thereby improving the stability of the tool and the sand-proof effect, and reducing the risk of casing damage and sand barrier failure.
CN122407138APending Publication Date: 2026-07-17DONGYING ZHAOXIN IND & TRADE CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- DONGYING ZHAOXIN IND & TRADE CO LTD
- Filing Date
- 2026-06-18
- Publication Date
- 2026-07-17
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Figure CN122407138A_ABST
Abstract
本发明涉及石油开采技术领域，尤其涉及一种油田井下作业用复合充填工具。包括：壳体，所述壳体安装有作业管串，所述壳体的周侧设置有均匀分布的容纳腔，所述容纳腔内密封滑动连接有卡瓦，所述壳体内靠近所有所述容纳腔的位置均设置有与对应所述容纳腔连通的连通孔，所述连通孔将对应的所述容纳腔与所述壳体的内部连通，所述连通孔内滑动连接有调控件。本发明通过调控件对连通孔的封堵，将容纳腔隔离开来，在卡瓦与套管抵接后，通过在容纳腔内隔离部分流体，依靠容纳腔内的流体为卡瓦提供支撑，以保持卡瓦对套管挤压力的稳定，如此提高充填工具作业期间的稳定性，降低套管和工具受损、防砂屏障失效的概率。
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