Deep Well Stratified Vacuum Pumping Test and the Mechanism Analysis

Home > Archive>Volume 44, Issue 1, 2017 >18-23

Deep Well Stratified Vacuum Pumping Test and the Mechanism Analysis
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                        HE Ji-binHE Ji-bin
Key Laboratory for Geological Environmental Monitoring Technology of the Ministry of Land and Resources
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PAN De-yuanPAN De-yuan
Key Laboratory for Geological Environmental Monitoring Technology of the Ministry of Land and Resources
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LI Bing-pingLI Bing-ping
Key Laboratory for Geological Environmental Monitoring Technology of the Ministry of Land and Resources
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YE Cheng-mingYE Cheng-ming
Key Laboratory for Geological Environmental Monitoring Technology of the Ministry of Land and Resources
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Affiliation:Key Laboratory for Geological Environmental Monitoring Technology of the Ministry of Land and Resources,Key Laboratory for Geological Environmental Monitoring Technology of the Ministry of Land and Resources,Key Laboratory for Geological Environmental Monitoring Technology of the Ministry of Land and Resources,Key Laboratory for Geological Environmental Monitoring Technology of the Ministry of Land and Resources
Clc Number:P634；P641
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Abstract:

Based on the comprehensive experiment of a single well stratified vacuum pumping, using a new stratified pumping test device, the test method was improved to make the stratified pumping work time saving and efficient, safe and reliable, economical and practical. Comparing the process monitoring data with conventional monitoring data, the influence of formation and vacuum negative pressure effect to the pumping is studied, by the detailed analysis on its mechanism, the variation characteristics of seepage field around the vacuum stratified pumping well pipe are obtained. The comparison experiment proves that this stratified vacuum pumping process has obvious advantages in improving the water yield of single well and well washing effect.

Key words:deep well; stratified pumping; vacuum negative pressure; pumping test; well washing

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Received:March 28,2016
Revised:November 24,2016
Adopted:November 24,2016
Online: February 20,2017
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