AI SearchAnalysis of step drawdown pumping test data (a modified approach) (Record no. 5026)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 04783nam a2200421 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260817162434.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 180598 th eng |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b10082190 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no. WA-83-22 |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Qaium, Dhali Abdul |
| 245 10 - TITLE STATEMENT | |
| Title | Analysis of step drawdown pumping test data (a modified approach) |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Bangkok : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 1983 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 79 p. |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. WA-83-22 |
| 500 ## - GENERAL NOTE | |
| General note | A thesis submitted in partial fulfillment of the requirement for the degree of Master of Engineering, School of Engineering and Technology |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Eng.) - Asian Institute of Technology, 1983 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | The procedure for the analysis of step drawdown pumping test data for a confined, homogeneous, isotropic and infinite areal extent has been developed considering the effect of previous pumping rates. The cases of pumping test with equal step duration and unequal step duration are dealt with separately. An attempt is made to compare the results obtained from this analysis with the results obtained from the existing methods to analyze the step drawdown pumping test data. The proposed Model evaluates the unknown parameters for both the well loss component and the aquifer loss component. To determine the values of the unknown parameters, the general equation. s/Q = k log ta + k log k' + CQ P-1 which express the relationship between specific drawdown, discharge rate and time of a step pumping test data containing the unknown parameters are solved in two steps. Thus the above equation is linearized. First, the parameter 'k ' is determined from the plotting of specific drawdown vs . log of adjusted time as the relationship between the variables is linear for each step since well loss component is constant (for a particular step). And once 'k' is known, the relationship between the variables becomes linear (for log-log plotting in case of first approach and assuming ' P' value in case of second approach) and thus, linear regression analysis procedure is applied to solve the equations of step pumping test. A computer program , 'MODIFIED-FIRST', developed to solve the step pumping test data for the case of equal step duration minimizes the difference between actual drawdown and regenerated drawdown using linear regression analysis considering the aquifer parameters as decisive variables. In the case of unequal step duration , the computer code 'MODIFIED-SECOND' minimizes the difference between the actual difference of specific drawdowns for two adjacent steps and regenerated difference of specific drawdowns for those two steps considering the exponent of discharge of well loss component as decisive variables. Linear regression analysis is also used in this program. Computer programs have also been developed for five existing methods to solve the step puming test data. Four sets of step pumping test data have been analyzed by the proposed method and by the five existing methods. The results obtained from this study indicate that prediction of drawdown is excellent if the effects of previous pumping on present pumping rate is considered and the exponent of discharge is considered as an unknown parameter. The exponent of discharge, ' P' is more important than the effects of previous pumping on present pumping rate to predict drawdown in a pumping well. A method to analyses the step pumping test data considering 'P' as an unknown parameter and considering the effects of previous pumping on present pumping rate is suggested. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Wells |
| General subdivision | Testing |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Aquifers |
| General subdivision | Testing |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Gupta, Ashim Das, |
| Relator term | Chairperson |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Tawatchai Tingsanchali, |
| Relator term | Examination Committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Huynh, Ngoc Phien, |
| Relator term | Examination Committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | French Government, |
| Relator term | Scholarshp Donor |
| 810 2# - SERIES ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Asian Institute of Technology. |
| Title of a work | Thesis ; |
| Volume/sequential designation | no. WA-83-22 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B21015">http://203.159.5.9/ait-thesis/detail.php?q=B21015</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b10082190 |
| b | mnait |
| c | s |
| 902 ## - LOCAL DATA ELEMENT B, LDB (RLIN) | |
| a | 240726 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 2 |
| Cataloger's initials, CIN (RLIN) | 951012 |
| First date, FD (RLIN) | m |
| -- | a |
| -- | s |
| -- | 0 |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnarc |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 20-AIT Publication |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 40-Archives |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050003050225 |
| CREATED | CREATED : 1994-05-16 |
| RECORD Id | RECORD # : i10084484 |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 0 |
| -- | TOT RENEW : 0 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050003050233 |
| CREATED | CREATED : 1994-05-16 |
| RECORD Id | RECORD # : i10084496 |
| LPATRON | LPATRON : 1024262 |
| LCHKIN | LCHKIN : 2017-03-04 |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 1 |
| -- | TOT CHKOUT : 1 |
| -- | TOT RENEW : 0 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050160035902 |
| CREATED | CREATED : 2016-05-02 |
| RECORD Id | RECORD # : i12877712 |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 0 |
| -- | TOT RENEW : 0 |
| Withdrawn status | Lost status | Damaged status | Not for loan | Home library | Current library | Shelving location | Date acquired | Cost, normal purchase price | Total checkouts | Full call number | Barcode | Date last seen | Copy number | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 17/08/2026 | 10.00 | AIT Thesis no. WA-83-22 | 30050003050225 | 17/08/2026 | 1 | 17/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 17/08/2026 | 10.00 | AIT Thesis no. WA-83-22 | 30050003050233 | 17/08/2026 | 2 | 17/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 17/08/2026 | AIT Thesis no. WA-83-22 | 30050160035902 | 17/08/2026 | 17/08/2026 | 40-Archives |