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Automatic grouting device

An oil and gas mixing pump and lifting ring technology, which is used in wellbore/well components, earthwork drilling, sealing/packing, etc., can solve problems such as mud spilling drilling construction, and achieve the effect of strong practicability and simple structure

Inactive Publication Date: 2014-01-29
SHAANXI HI TECH ENERGY DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the automatic grouting circulation devices used in China are generally foreign products, and the foreign grouting devices do not have a mud return mechanism, causing mud to spill on the drill floor and bring a lot of inconvenience to drilling construction.

Method used

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  • Automatic grouting device

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Embodiment Construction

[0008] The automatic grouting device of the present invention comprises an upper joint 1, a suspension ring 2, a thrust ring 3 and a telescopic head 4, wherein the upper joint 1, the suspension ring 2, the thrust ring 3 and the telescopic head 4 are connected in sequence, and the upper joint 1 and the suspension ring 2 A sealing gasket is provided, and the telescoping head 4 and the thrust ring 3 are connected by a spring. The upper joint 1, the suspension ring 2, the thrust ring 3 and the telescoping head 4 are all provided with a grouting cavity connected to each other. The automatic grouting device of the present invention uses a spring to connect the telescopic head 4 and the thrust ring 3. When the grouting pump is turned on, the telescopic head 4 is stretched out under the action of pressure, and the grouting operation starts. When the grouting pump is turned off, the telescopic The head 4 is retracted under the action of the spring.

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PUM

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Abstract

The invention relates to a grouting device, in particular to an automatic grouting device which comprises an upper connector, a hanging ring, a thrust ring and a retractable head. The upper connector, the hanging ring, the thrust ring and the retractable head are sequentially connected with one another, a sealing pad is arranged between the upper connector and the hanging ring, the retractable head is connected with the thrust ring by a spring, and four grouting cavities which are communicated with one another are respectively arranged inside the upper connector, the hanging ring, the thrust ring and the retractable head. The automatic grouting device has the advantages of simple structure and high practicality.

Description

technical field [0001] The invention relates to a grouting device, in particular to an automatic grouting device. Background technique [0002] In the casing operation, the domestic grouting method usually used is to fix the casing on the chuck, and the operator holds the mud pipeline and pours mud into the casing, or uses a self-filling floating hoop shoe to grout the casing. method. This method of operation is labor-intensive, and at the same time increases the risk of debris falling into the wellbore, especially in wells with complex structures such as extended-reach wells, where the casing stays still for a long time, which may cause accidents such as sticking and failure to run in. The self-priming floating hoop shoe is subject to the quality and reliability of the product, and once it fails, it will bring great inconvenience to the subsequent cementing. With the continuous improvement of the degree of mechanization and automation of drilling equipment. At present, s...

Claims

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Application Information

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IPC IPC(8): E21B33/138
Inventor 张淑芬
Owner SHAANXI HI TECH ENERGY DEV