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Electric oil production pump assembly for same-well pumping and injection process

A technology of oil production pump and electric pump, which is applied in the field of oil production electric pump components in the same well pumping and injection process, which can solve the problems that the electric pump cannot be placed in the oil pipe and the oil production capacity of the electric pump is limited, so as to achieve environmental protection and reduce corrosion hazards , the effect of increasing oil production

Active Publication Date: 2013-12-18
CHINA NAT OFFSHORE OIL CORP +2
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0006] In the prior art, in the supporting tools of the same well pumping and injection process, it is often impossible to put a large-sized electric pump into the tubing, which greatly limits the oil production capacity of the electric pump

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  • Electric oil production pump assembly for same-well pumping and injection process

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Embodiment Construction

[0033] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0034] Such as figure 1 Shown is a schematic structural diagram of an electric pump assembly for oil production in the same well pumping and injection process provided by an embodiment of the present invention. see figure 1 , the oil production electric pump assembly of this embodiment mainly includes: oil production electric pump combined joint 1, outer sealing pipe, lower joint 5, semicircular snap ring 6, oil production pump joint 7, outer pipe collar 8, outer pipe upper collar 9, Cable retaining hoop 10, tooth hanging ring 11, plug 12, O-ring 14, O-ring 15, O-ring 16 an...

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Abstract

The invention discloses an electric oil production pump assembly for a same-well pumping and injection process. The electric oil production pump assembly comprises an electric oil production pump combination joint, an outer sealing pipe, a lower joint, a semicircular clamp ring, an oil production pump joint and a toothed embedded hanging ring. The upper end of the electric oil production pump combination joint is positioned on the outside of the outer sealing pipe, the lower end of the electric oil production pump combination joint extends into the outer sealing pipe, a through hole is formed in the electric oil production pump combination joint, and the through hole, an oil pipe in the outer sealing pipe and the lower joint jointly form an oil pipe passage; the electric oil production pump combination joint, the semicircular clamp ring and the oil production pump joint form an electric oil production pump suspension device, the semicircular clamp ring is sleeved on the outside of the electric oil production pump combination joint, and the oil production pump joint is arranged below the semicircular clamp ring and is connected with the electric oil production pump combination joint. The electric oil production pump assembly has the advantages that the oil production capacity of electric pumps can be realized to the greatest extent, and the shortcoming of limited oil production capacity of existing electric pumps is overcome.

Description

technical field [0001] The invention relates to a matching tool for the same well pumping and injection process in the fields of petroleum and natural gas exploitation, and in particular to an oil production electric pump assembly for the same well pumping and injection process. Background technique [0002] At present, after most oil wells are put into production, with the prolongation of production time and the further development of oil fields, especially after the oil fields enter the middle and later stages of production, in order to increase crude oil production, various oil fields generally adopt water injection strong flooding technology, which leads to oil wells containing The water volume increases year by year, and the cost of extraction is getting higher and higher, which eventually leads to the oil well soon entering the non-profit production stage and being forced to stop production, so that a considerable proportion of the original oil reserves remain in the re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/00
Inventor 王伟军刘东明杨进巩立根赵艳辉
Owner CHINA NAT OFFSHORE OIL CORP
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