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Vibration enhanced mixing process

A vibration source, mixing technology, applied in mixing methods, shaking/oscillating/vibrating mixers, mixers, etc., can solve problems such as limiting total working volume, time and money loss, increasing working costs, etc.

Inactive Publication Date: 2011-11-23
PRAD RES & DEV LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Failure of a continuous mixing system can result in significant loss of time and money associated with cementing work
Batch mixing is usually used for the most difficult formulations; however, the size of the equipment for batch mixing may limit the possible total working volume and may increase the overall working cost

Method used

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  • Vibration enhanced mixing process
  • Vibration enhanced mixing process
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] See figure 1 , Generally indicated by 100 is a system for continuously mixing powder and liquid slurries. The slurry may exemplarily be a cement slurry used in wellbore cementing operations. The system 100 includes a mixing tank 102 in which a slurry is placed, and the mixing tank 102 is in fluid communication with a recirculation pump 106 (such as a centrifugal pump, etc.) via a pipe 104. The pump 106 pressurizes the slurry and discharges it to an outlet or pipe 108, which is in fluid communication with a delivery pump 110, such as a positive displacement triplex pump used to pump the slurry to the wellbore. The outlet or pipeline 112 of the pump 110 extends to a downstream point or destination indicated generally by 114, such as a wellbore (not shown) or the like. The recirculation line or pipe 116 is in fluid communication with the outlet of the pump 106 and the jet mixer 118. The outlet or pipe 120 of the jet mixer 118 is in fluid communication with an optional slu...

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PUM

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Abstract

A method for mixing a slurry for delivery to a downstream point comprises mixing a liquid source and a powder source at a mixing location to form the slurry, directing the slurry to at least one of a downstream point and a recirculation circuit, and introducing at least one vibration source to promote slurry homogenization and thorough mixing of the slurry for delivery to the downstream point, the vibration source located remote from the mixing location.

Description

Background of the invention [0001] The description in this section only provides background information related to the present disclosure, and does not constitute prior art. The system and method generally involve wellsite surface equipment, such as, but not limited to, cement mixing equipment and the like. [0002] During oil well construction, the cement slurry in the oil field cementing system is usually pumped between the shell and the ground, for example, to ensure the regional separation between geological formations or the like. The slurry is preferably composed of a dry cement mixture and a mixed liquid in a precise ratio. It performs best when it is completely uniform in order to obtain the required properties of the slurry. The properties can include, but are not limited to, density, viscosity, loss Water volume, free water, gel time, hardening time, hardening strength and air permeability. The slurry is usually formed by mixing a dry cement mixture and a mixed liquid ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28C5/48B28C9/00B01F3/12B01F11/00
CPCB01F3/1242B28C5/48B28C5/06B28C9/004B01F3/12B01F11/025B01F11/0094B01F23/551B01F31/841
Inventor M.伍德曼西P.兹加J.雷纳R.沙姆派因
Owner PRAD RES & DEV LTD