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Nozzle and Christmas tree

A nozzle and channel technology, applied in the field of oil production equipment in oil fields, can solve problems such as easy formation of ice blockage

Active Publication Date: 2021-08-31
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a choke nozzle and a christmas tree, which are used to solve the problem that the wellhead nozzle of an oil well with a large gas production is easy to form ice blockage when throttling and reducing pressure.

Method used

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  • Nozzle and Christmas tree

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Embodiment Construction

[0041] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0042] When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the ...

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Abstract

The invention provides a nozzle and a Christmas tree. The nozzle includes: a nozzle body and at least one throttling pipe joint; one end of the nozzle body is used to connect with a side pipeline, and the other end of the nozzle body passes through the throttle pipe The joint is connected to the other side of the pipe, and the two ends of the nozzle main body are communicated through the first passage; the throttle pipe joint has a second passage connected at both ends, and the cross-sectional area of ​​the second passage is larger than the The cross-sectional area of ​​the first channel. In the nozzle and the Christmas tree provided by the present invention, the crude oil passes through the second channel and the first channel respectively, realizing the multi-stage throttling of the crude oil through the throttling pipe joint and the nozzle body, avoiding too much throttling at one time and too much cooling speed. Fast, the temperature is too low to easily form the problem of ice blockage.

Description

technical field [0001] The invention relates to the technical field of oil production devices in oil fields, in particular to a nozzle and a Christmas tree. Background technique [0002] The nozzle is a part used to control the flow rate of the oil well on the Christmas tree. During the production process of the oil well, the production pressure difference can be reasonably controlled through the nozzle to adjust the production of the oil well, which can avoid the underground deficit, so that the oil well can maintain stable production under a reasonable pressure difference. [0003] At present, the commonly used nozzle is cylindrical, with an oil outlet hole with a diameter of 2-18mm inside, and a thread connected to the nozzle sleeve on the outside. When the nozzle is installed on the Christmas tree for production, the crude oil passes through the outlet of the nozzle Outflow from the hole, because the diameter of the oil outlet hole of the nozzle is different, so the adju...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B34/02
CPCE21B34/02
Inventor 金子涵王宏胥珍珍曹鹏郭志广杨文明罗慎超徐文涛王霞杨小华刘迎斌刘敏杨其展林莹曹文王鹏尹怀润苏东坡钟平强牛阁
Owner PETROCHINA CO LTD
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