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Oil pipe automatic blocking tool

A plugging tool and automatic technology, applied in sealing/isolation, wellbore/well components, earthwork drilling and production, etc., can solve problems such as long construction time, damage to oil layers, environmental pollution, etc., to achieve short construction time and save production cost effect

Pending Publication Date: 2018-09-04
YANCHENG QINGLONG MACHINERY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the process of lifting the pipe string during the workover construction of oil and water wells, the phenomenon of oil and water in the well overflowing from the oil pipe is often encountered, causing environmental pollution and making it impossible to work; The construction is complicated, the cost is high, the time is long, and the oil layer is damaged. Another method is to use the well testing equipment to lower the plug into the well through the steel wire tool, and realize the setting and release by strong pulling. The disadvantage of this method is that the construction is complicated and the accident rate is high. High, long construction time, high cost, low success rate

Method used

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Embodiment Construction

[0022] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "inner" and "outer ” refer to directions towards or away from the geometric center of a particular part, respectively.

[0023] like figure 1Shown is an automatic oil pipe plugging tool, including positioning claw 1, positioning seat 2, rubber tube 3, torque sleeve 5, retaining ring 6, rubber tube mandrel 7, pawl 8, pawl outer cylinder 9, power outer Cylinder 10, upper power mandrel 11, lower power mandrel 12, transition short 13, pressure transmission short 14, valve core 15, delay outer cylind...

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Abstract

The invention discloses an oil pipe automatic blocking tool. The oil pipe automatic blocking tool comprises positioning claws, a positioning seat, a rubber cylinder, a torque sleeve, a retainer ring,a rubber cylinder mandrel, a pawl, a pawl outer cylinder, power outer cylinders, an upper power mandrel, a lower power mandrel, a transition short circuit, a pressure-transmitting short circuit, a valve element, a delay outer cylinder, a delay valve assembly, a compensation mandrel, a locating short circuit and a volume pipe. The oil pipe automatic blocking tool is used for repairing constructionof an oil field oil well or a water well, oil water is prevented from being sprayed out of an oil pipe in the pipe lifting process, and the oil pipe automatic blocking tool has the characteristics that on-site application is easy, automatic sealing and anchoring can be achieved only by putting the tool in the well, and the on-site construction cost is avoided.

Description

technical field [0001] The invention relates to the technical field of workover construction equipment for oil and water wells in oil fields, in particular to an automatic plugging tool for oil pipes. Background technique [0002] In the process of lifting the pipe string during the workover construction of oil and water wells, the phenomenon of oil and water in the well overflowing from the oil pipe is often encountered, causing environmental pollution and making it impossible to work; The construction is complicated, the cost is high, the time is long, and the oil layer is damaged. Another method is to use the well testing equipment to lower the plug into the well through the steel wire tool, and realize the setting and release by strong pulling. The disadvantage of this method is that the construction is complicated and the accident rate is high. High, long construction time, high cost, low success rate. [0003] The delay valve is a valve body installed in the pipeline,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B33/12E21B23/01
CPCE21B23/01E21B33/1208
Inventor 陈燕石磊杨清海姜领王斌
Owner YANCHENG QINGLONG MACHINERY
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