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Oil nozzle for flowing production in oil field

An oil field and oil nozzle technology, which is applied in the fields of fluid production, earth-moving drilling, wellbore/well components, etc., can solve problems such as easy blockage of oil nozzles, and achieve the effect of improving safety, reducing labor intensity of workers and simple operation.

Inactive Publication Date: 2018-11-20
PETROCHINA CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the problem that the existing oil nozzle is easy to block

Method used

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  • Oil nozzle for flowing production in oil field

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Embodiment Construction

[0021] 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 with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0022] A nozzle used in self-spraying oil production in oil fields, including a housing 1, a valve core 2, an inner valve block 3 and a plug 4, the housing 1, valve core 2, inner valve block 3 and plug 4 are all made of metal, The valve core 2 is sleeved in the housing 1. The valve core 2 is a tubular structure with one end open and the other end closed. The inner valve block 3 and the plug 4 are both sleeved between the valve core 2 and the housing 1. The inner valve block 3 It is sealed and connected with the valve core 2 and the housing 1, and the plug 4 is also sealed and connected with the valve core 2 and the housing 1. The inner valve block 3 and the plug 4 are arranged at intervals alon...

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Abstract

The invention discloses an oil nozzle for flowing production in an oil field. The oil nozzle comprises a casing (1), a valve core (2), an inner valve block (3) and a plug (4), wherein the casing (1) is sleeved with the valve core (2); the valve core (2) is of a tubular structure with one open end and one closed end; a plurality of oil spray through holes (6) are formed in the side wall of the valve core (2) and arranged along the central line of the valve core (2) at intervals, and diameter of the plurality of oil spray through holes (6) is increased gradually along the central line of the valve core (2); the valve core (2) can reciprocate along the central line of the valve core (2). By means of the plurality of oil spray through holes (6) formed in the valve core (2) of the oil nozzle for flowing production in the oil field, new spray channels can be established in case of blockage, pressure is relieved and blockage is eliminated efficiently, labor intensity of a worker is reduced effectively, and operation safety is improved.

Description

technical field [0001] The invention relates to the field of oil production equipment, in particular to an oil nozzle used in self-spraying oil production in oil fields. Background technique [0002] In the process of crude oil extraction, some oil wells are usually produced by self-spraying oil production because the formation energy is sufficient. In different periods of spontaneous oil production, in order to meet the liquid supply conditions of the oil well, the oil nozzle is usually used to control the size of the oil well blowout and the method of controlling the oil well output. The oil well output is also controlled by controlling the size of the valve on site, but there is a safety risk of excessive pressure causing damage to the valve gate and loss of control. In terms of safety management, the use of valves to control the output is also prohibited. In the process of using nozzles to realize self-spraying oil production, Chinese patent CN 204877399U, dated Decembe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/12
CPCE21B43/12
Inventor 段效威肖家宏贾财华孙强高玉军黄海礁姜英鹏贾凯程彦符张淑颖陈敏胡京生汪宁赵守清付尧
Owner PETROCHINA CO LTD
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