Drilling of Tube Wells Tender, Afghanistan - 67814733

Procurement Summary

Country : Afghanistan

Summary : Drilling of Tube Wells

Deadline : 18 Jun 2022

Other Information

Notice Type : Tender

TOT Ref.No.: 67814733

Document Ref. No. : DACAAR RFQ 96 PRF-830-831/DACAAR/2210-DRF/DRF1.1/DRF1.2/GZN-0614/06.2022

Financier : Other Funding Agencies

Purchaser Ownership : Public

Tender Value : Refer Document

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Tender Details

Quotation are invited for Drilling of Two Tube Wells by Rotary Rig in Ander District of Ghazni Province

Sealed offers are invited from qualified companies & individuals for Drilling of Two Tube Wells by Rotary Rig with Compressor and Pump Test in Ander District of Ghazni Province. Please use Annex (I) Budget Breakdown for submitting your offers, price must include Government Tax. Please Use Annex (II), for Tentative Work Plan. The offers must reach to DACAAR Main Office Logistics Unit located in (Street No. 12, Taimani Project, Qala-e-Fathullah - Kabul Province) till 4:00pm June 18, 2022. The bid opening session will be held on June 19, 2022 at 10:30 am in DACAAR Main Office, Kabul Province and the bid winner will be notified shortly after the bid opening session.



Work Specifications:
1. The well should be drilled by rotary rig with 14 inches- diameter drilling bit from the surface to the depth of 120m. Depth of the well will be increased or decreased in case of geological condition but the final decision will be taken by DACAAR Hydrogeology/ Technical Staff.
2. The well from the starting to the ending of drilling should not be less than 14 inches. 3. Drilling Rod diameter should be 89 or 100mm. 4. The contractor should have heavy rod and should be used between drilling rod and drilling bit. The heavy rod should not be less than 1500 Kg. 5. The drilling bit should be according to the well litho logical layers. Secondly the drilling bit must be completely stable and free from breakage, looseness and abrasion, and the contractor can-t use welded drilling bit. 6. The contractor will be responsible of lowering and installation of screen and pipe in a straight line in the well. 7. The contractor should take the sample from each meter and put in to the sample box and label of each sample intervals. The contractor must have the sample box. 8. The contractor should have the water tanker for circulation of water to the well during drilling and cleaning of well during gravel packing. The water tanker capacity should not be less than 15 cubic meters. 9. The contractor must lower 8-inch E class PVC Casing Pipe and Filter according to the well design (cost per meter). DACAAR will provide 8 inches E class PVC pipe and screen (Class-E) according to the well design. 10. Around the pipe and screen should be filled by impervious clay and 2-6 mm rounded, sorted and washed river gravel according to the well design (cost per meter). 11. Around the pipe, above the water level should be filled with impervious clay according to the well design (Cost per meter). 12. The contractor should be entitled for the cost per meter of gravel pack and the impervious clay seal.
13. Compressor Test: The well should be cleaned and developed by air Compressor with three inches GI outlet pipe (with joint of Flange) and one inches GI air pipe or PE pipe 32mm (10 Bar- PE 100) (one job) until the water of well completely cleaned from mud, silt and dust. The capacity of compressor should be 12 atmospheres (output of pressure) and should be able to clean and develop the well to the required depth of well. The development of well means to close and open the gate valve of water pipe outlet during compressor operation for better cleaning and sorting of gravel and sand around the pipe and screen.
14. Pumping Test should be performed by electric submersible pump minimum for 8 hours for finding well hydraulic properties, such as static water table, discharge, dynamic (water table) time draw downed time recovery. If the Tube Well produces less than 5 L/S the contractor should provide electrical submersible pump according to the mentioned Tube Well discharge for pumping test. The minimum and maximum discharge of pump should be between 5-7 L/S and the pump head should not be less than 120m. The power of generator should be according to the power of water pump and to have stable power during pumping test. The contractor should have valve and flow meter for control of well discharge during pumping test of well. 15. The contractor should arrange for Helmet, Safety Shoes, Safety Glass and Leather Glove for Safety of his working team. 16. The contractor should provide hard and soft copies of report for well construction and pumping test the well report should be submitted to DACAAR office Note: Before of lowering casing, screen and gravel packing the Contractors should provide all required materials/equipment, such as, compressor machine, pumping test equipment, Generator, water tanker and etc. at site.

Documents

 Tender Notice