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Sucker rod and oil well using same

A technology for sucker rods and pumps, which is applied to drill pipes, drilling equipment, and earthwork drilling and production, and can solve the problems of increased safety risks for operators, unbearable strength of sucker rod elevators and square clamps, and high well control risks, etc. problems, to achieve the effect of reducing labor intensity of workers, shortening the operation time of jam release, and reducing the risk of well control

Active Publication Date: 2017-08-18
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. When the sucker rod is pulled out and a load is applied, the sucker rod receives a large instantaneous pulling force, so the rebound force of pulling out is also very large. The strength of the sucker rod elevator and square clip is unbearable, and it is easy to bounce off, which increases the operation risks to the safety of personnel;
[0004] 2. In the process of casing pipe rods, the sucker rods of the whole well are basically cut off, resulting in a large waste;
[0005] 3. It is difficult to seal the well during the process of casing the pipe rod, and the risk of well control is great;
[0006] 4. It is difficult to cut sucker rods. It takes more than 15 minutes to cut each hollow rod with a saw blade. For high-strength solid rods and plug-in rods, electric grinding wheels and electric welding can only be used for cutting, which poses a high safety risk.

Method used

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  • Sucker rod and oil well using same
  • Sucker rod and oil well using same

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Embodiment Construction

[0032] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described The 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 shall fall within the protection scope of the present invention.

[0033] It should be noted that when an element is referred to as being “disposed on” another element, it may be directly on the other element or there may also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may a...

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PUM

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Abstract

The invention discloses a sucker rod and an oil well using the same. The sucker rod can be arranged in an oil pipe; the lower end of the sucker rod is used for being connected with an oil well pump; the sucker rod comprises a plurality of sucker rod sections connected in series through a first thread; a connecting piece is arranged in the predetermined position of the sucker rod; the connecting piece comprises a first part and a second part which are connected in the length direction of the sucker rod; the first part and / or the second part are / is connected with the sucker rod sections through the first thread; the first part is connected with the second part through a second thread; and one of the first thread and the second thread is a positive thread, and the other is a reverse thread. According to the sucker rod and the oil well using the same, waste of the sucker rod can be reduced when the sucker rod is pulled out and clamped, and the clamping freeing work time is shortened.

Description

technical field [0001] The invention relates to the field of petroleum production machinery, in particular to a sucker rod and an oil well thereof. Background technique [0002] At the oil production site, it is necessary to pull out the oil extraction string during operations such as pump inspection and oil production and steam injection switching. And in the operation process of needing to pull out the oil sucker string, if run into the problem of sucker rod sticking and when unblocking is invalid, can only pull out the sucker rod vigorously at present, then set up the pipe rod. Such a construction method has at least the following four disadvantages: [0003] 1. When the sucker rod is pulled out and a load is applied, the sucker rod receives a large instantaneous pulling force, so the rebound force of pulling out is also very large. The strength of the sucker rod elevator and square clip is unbearable, and it is easy to bounce off, which increases the operation risks to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B17/00E21B17/02
CPCE21B17/00E21B17/02
Inventor 郝晨曦孟强赵春雷张连斌孙玉新王清海白建原郭金鹏迟洪军李欣锋王恺强胡博孟鑫孙振彪钱波单金宝李玉君程浩姜兴玲蒲智娟魏耀王浩然
Owner PETROCHINA CO LTD
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