Separating packer for sealing annular space between casing string and wellbore, has activation channels that are made in base casing pipe with possibility of closing after activation of packer by valve section
	MARKOVTSOV N A; FROLOV S A; MYSHKIN K S
	2024-12-23
专利权人	SIBBURMASH LLC (SIBB-Non-standard)
申请日期	2024-12-23
专利号	RU232763-U1
成果简介	NOVELTY - The separating packer has a base casing pipe (1) with two activation channels, main and anchor sealing sleeve (3), two filter elements (2) and two valve sections. The main and anchor sealing sleeves are located on the base casing pipe, made with external and internal grooves and equipped with main and additional elastomer seals (12, 16), which are located in the external grooves. The guide cone is made of a metal alloy. The cone with teeth is made with longitudinal cuts located on the outer side, provided with external groove for the bandage and made of a metal alloy with additional processing. The valve section is located between the main sealing sleeve (15) and the filter element. The other valve section is located between the anchor sealing sleeve and the filter element. The activation channels are made in the base casing pipe with the possibility of closing after activation of the packer by valve section. USE - Separating packer for sealing annular space between casing string and wellbore. ADVANTAGE - The reliability of the packer design is increased by eliminating axial movements from excess inflation pressure and from forced lifting to the wellhead when fixing the packer in the wellbore or in the casing. The packer can ensure isolation of the zone between first zone having first pressure and the second zone having second wellbore pressure. DETAILED DESCRIPTION - The packer has an anchor sealing sleeve that is provided with main and additional anchor elements located in the outer grooves. Each main elastomer seal includes a sealing element and two anti-leakage devices located on both sides of the sealing element. The main and additional anchor elements (4, 5) are set with a guide cone, with teeth and a bandage made of an elastomeric material, secured in the outer groove by welding and fixed with a bandage. DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of the separating packer. 1Base casing pipe 2Filter elements 3Anchor sealing sleeve 4, 5Main and additional anchor elements 12, 16Main and additional elastomer seals 15Main sealing sleeve
IPC 分类号	E21B-033/127
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/13864
专题	中国科学院新疆生态与地理研究所
作者单位	SIBBURMASH LLC (SIBB-Non-standard)
推荐引用方式 GB/T 7714	MARKOVTSOV N A,FROLOV S A,MYSHKIN K S. Separating packer for sealing annular space between casing string and wellbore, has activation channels that are made in base casing pipe with possibility of closing after activation of packer by valve section. RU232763-U1[P]. 2024.

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