Wellbore cleaning device comprises is rigidly fixed on the casing pipe and is made in the form of two rings installed on the casing string and rigidly connected to each other
	ZARIPOV I M; ISKHAKOV A R; PRONIN V Y
	2024-05-08
专利权人	TATNEFT STOCK CO (TATN-Non-standard)
申请日期	2024-05-08
专利号	RU2829554-C1
成果简介	NOVELTY - Invention relates to the oil and gas industry in the field of drilling and casing of directional and horizontal wells and can be used for removal of sludge residues in the borehole of a horizontal well during cementing with simultaneous rotation. Wellbore cleaning device is rigidly fixed on the casing pipe and is made in the form of two rings installed on the casing string and rigidly connected to each other by screw metal bands in amount of two to four. Screw metal bands are evenly spaced between themselves and repeat the casing pipe body along the spiral. Pins are evenly mounted on the surface of the tapes at a distance of at least 5 cm from each other. In this case, DP = DC + (DW-DC)/2, where DP is the diameter of the device along the pins, DC is the diameter of the casing coupling on which the device is installed, DW is the diameter of the borehole into which the casing with cleaning devices is lowered. USE - Oil and gas industry. ADVANTAGE - Higher quality of cementing along the entire length of the horizontal section of the wellbore due to high-quality cleaning of the lower part of the horizontal wellbore from compacted sludge residues; creation of a reinforced cement ring is provided. 1 cl, 1 dwg
IPC 分类号	E21B-037/00
国家	俄罗斯
专业领域	化学化工
语种	英语
成果类型	专利
文献类型	科技成果
条目标识符	http://119.78.100.226:8889/handle/3KE4DYBR/16812
专题	中国科学院新疆生态与地理研究所
作者单位	TATNEFT STOCK CO (TATN-Non-standard)
推荐引用方式 GB/T 7714	ZARIPOV I M,ISKHAKOV A R,PRONIN V Y. Wellbore cleaning device comprises is rigidly fixed on the casing pipe and is made in the form of two rings installed on the casing string and rigidly connected to each other. RU2829554-C1[P]. 2024.

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