Continuous sand blasting tool

A technology for sand flushing and tools, applied in the field of continuous sand flushing tools, can solve problems such as pump stoppage, and achieve the effects of improving sand flushing efficiency, avoiding sand blockage, and reducing usage.

Pending Publication Date: 2020-03-06
LIAONING XINHUA INSTR CO LTD
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the sand washing tools are relatively simple, and can only be connected to a single oil pipe continuously, and the pump needs to be stopped on the ground

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Continuous sand blasting tool
  • Continuous sand blasting tool
  • Continuous sand blasting tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] See Figure 1-Figure 4 , the specific structure of this embodiment is a continuous sand washing tool, including an inner oil pipe 1 (1.900” oil pipe), an outer oil pipe (22-7 / 8” oil pipe), and the inner oil pipe 1 and the outer oil pipe 2 are arranged on the casing 6 Inside, the upper end of the internal oil pipe 1 is provided with a compensation type sand washing sealing tool 3, the lower end of the outer oil pipe 2 is provided with a buffer type sand washing suspension tool 4, and the lower end of the inner oil pipe 1 is provided with a seated strong jet sand washing tool 5;

[0017] The compensation type sand flushing sealing tool 3 includes an upper joint I3-1, a center pipe 3-4, a piston 3-5, a sealing sleeve 3-3, and a screw thread is used between the upper joint I3-1 and the center pipe 3-4. Connection, there is a leather cup 3-2 between the upper joint Ⅰ3-1 and the sealing sleeve 3-3, the piston 3-5 slides freely on the central tube, the upper part of the sealin...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a continuous sand blasting tool which includes an internal oil pipe and an external oil pipe. The continuous sand blasting tool is characterized in that the upper end of the internal oil pipe is provided with a compensation type sand blasting sealing tool, the lower end of the external oil pipe is provided with a buffer sand blasting suspension tool, and the lower end of the internal oil pipe is provided with a sitting type strong jet flow sand blasting tool; the compensation type sand blasting sealing tool includes an upper joint I, a central tube, a piston and a sealing sleeve, a packing cup is arranged between the upper joint I and the sealing sleeve, and a piston slides freely on the central tube; the buffer sand blasting suspension tool includes an upper jointII and a lower joint, the upper joint II and the lower joint are connected by threads, and a spring component is arranged in an inner cavity formed by the upper joint II and the lower joint and in front of a plug; and the sitting type strong jet flow sand blasting tool includes an outer tube, a sealing sleeve and a pen tip, the lower end of the pen tip is sequentially in threaded connection to aconstant pressure ball seat, an inner spring seat I, an inner spring seat II and a sand blasting opening. The device can avoid sand blocking and pump blocking, speeds up the process of sand blasting,reduces use of sand blasting liquid and improves the sand blasting efficiency.

Description

technical field [0001] The invention relates to the field of oilfield operations, in particular to a continuous sand washing tool. Background technique [0002] In the production process of oil and water wells, due to the sand production in the oil layer and the engineering sand filling, the sand surface will be partially or completely filled with the oil layer. If the liquid flow in the well cannot bring all the sand production to the surface, the sand in the well will gradually precipitate and the sand column will increase. Blocking the oil outlet channel will increase the flow resistance, reduce or even stop the production of the oil well, and at the same time damage the downhole equipment and cause downhole sand stuck accidents. Therefore, the wellbore must be flushed clean and the production channel established. Hydraulic sand washing is to inject liquid into the well at high speed, rely on hydraulic action to disperse the sand at the bottom of the well, and use the car...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): E21B21/00E21B31/03E21B33/127E21B37/00
CPCE21B21/00E21B31/03E21B33/127E21B37/00
Inventor 梁伟成梁闯
Owner LIAONING XINHUA INSTR CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap