Flushing and seal examining integrated pipe column suitable for sand control well completion and operation method of flushing and seal examining integrated pipe column

• Main Authors: XUE DEDONG, ZHANG LEI, DIAO DONGZHEN, SHEN QIONG, SHA JILE, DING DEJI, HUANG ZECHAO, JIANG YUXING, ZHENG CHUNFENG, XING HONGXIAN
• Format: Patent
• Language: Chinese; English
• Published: 15.07.2022
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

The invention discloses a flushing and seal examining integrated pipe column suitable for sand control well completion and an operation method thereof. The pipe column comprises an oil pipe, a positioning seal, a rupture disc type insertion seal, a sliding sleeve type flushing switch tool and a guide shoe. By means of the washing and seal examining integrated pipe column suitable for sand control well completion, the functions of washing and seal examining of a multi-stage packer sealing cylinder are achieved, and the well repair time efficiency is improved; the sliding sleeve type switch flushing tool adopts the design of the piston and the V-shaped disc, zero leakage of the center pipe is achieved, and therefore the sealing effect of the packer can be verified easily. 本发明公开了一种适用于防砂完井冲洗验封一体化管柱及其作业方法，该管柱包括油管、定位密封、破裂盘式插入密封、滑套式冲洗开关工具和引鞋；通过一种适用于防砂完井冲洗验封一体化管柱实现了冲洗、多级封隔器密封筒验封功能，提高修井时效；滑套式开关冲洗工具采用活塞+V盘设计，实现了中心管的零泄露，从而有助于验证封隔器密封效果。