High temperature and high pressure tubing packer
A high-pressure tubing and packer technology, which is applied in the field of high-temperature and high-pressure tubing packers, can solve problems such as poor sealing effect, difficult separation after unsealing, and complicated structure, and achieve good sealing effect, easy unsealing, and simple structure Effect
Active Publication Date: 2016-09-14
JIANGSU PROVINCE JINFENG PETROLEUM MACHINERY MFG CO LTD
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Problems solved by technology
The existing high-temperature and high-pressure tubing packers use bi-directional slips to achieve bi-directional pressure bearing. There is only one sealing rubber tube, the sealing effect is not good, the structure is relatively complicated, and it is difficult to unseal it. separate
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Embodiment Construction
[0008] The specific content of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0009] Such as figure 1 As shown, the high temperature and high pressure oil tubing packer includes: an upper joint 1 and a lower joint 2 connected with the oil pipe, and a central pipe 3 is threaded between the upper joint 1 and the lower joint 2; the upper joint 1, The middle part of the lower joint 2 and the central pipe 3 is provided with a cavity 4 communicating with each other; on the outer upper end of the central pipe 3, an upper protective block 5, an upper cone 6, an upper rubber cylinder 7, a middle The rubber cylinder 8, the lower rubber cylinder 9, the lower cone 10, and the lower protection block 11 are respectively provided with spacers between the upper rubber cylinder 7 and the middle rubber cylinder 8, and between the middle rubber cylinder 8 and the lower rubber cylinder 9 12. The upper protection b...
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The invention discloses a one-way slip and two-way bearing type high temperature and high pressure resistance tubing packer. The one-way slip and two-way bearing type high temperature and high pressure resistance tubing packer comprises an upper joint and a lower joint which are connected with a tubing; a center pipe is in threaded connection between the upper joint and the lower joint; the upper joint, the lower joint and the middle of the center pipe are provided with a communicated empty chamber; an upper protection block, an upper cone, an upper rubber tube, a middle rubber tube, a lower rubber tube, a lower cone and a lower protection block are arranged at the upper end of the outer side of the center pipe from top to bottom in turn; the middle of the outer side of the center pipe is provided with a lower protection block connecting base and an upper outer sleeve; the lower portion of the outer side of the center pipe is provided with a slip base and a lower outer sleeve. According to the one-way slip and two-way bearing type high temperature and high pressure resistance tubing packer, the one-way slip and two-way bearing is achieved, the structure is simple, the packing is convenient, the harm to a sleeve pipe is not caused due to a slip free of tooth, and the sealing effect is good due to the novel high temperature and high pressure resistance rubber tubes.
Description
technical field [0001] The invention relates to a drilling equipment, in particular to a high temperature and high pressure oil pipe packer. Background technique [0002] In order to prevent the casing outside the tubing from entering the oil production process, a high-temperature and high-pressure tubing packer is connected to the tubing to achieve isolation and sealing. The existing high-temperature and high-pressure tubing packers use bi-directional slips to achieve bi-directional pressure bearing. There is only one sealing rubber tube, the sealing effect is not good, the structure is relatively complicated, and it is difficult to unseal it. separate. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a high temperature and high pressure tubing packer with one-way slips and two-way pressure bearing. [0004] In order to solve the above-mentioned technical problems, the technical solution adopted by the present ...
Claims
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IPC IPC(8): E21B33/1295E21B33/127
CPCE21B33/127E21B33/1295
Inventor 郭峰周军杨鹏王华王磊陈旭许丽陈艺璇
Owner JIANGSU PROVINCE JINFENG PETROLEUM MACHINERY MFG CO LTD