Quotation Are Invited For Water Well Cleaning

Quotation are invited for Water Well Cleaning. SCOPE OF WORK (SOW) - WATER WELL CLEANING.1. PROJECT OVERVIEWTHE OBJECTIVE OF THIS PROJECT IS TO RESTORE AND IMPROVE WELL EFFICIENCY ,MAINTAIN SUSTAINABLE PRODUCTION CAPACITY, AND ENSURE RELIABLE OPERATIONOF GROUNDWATER ASSETS.2. PROJECT DETAILSDESCRIPTION#DETAILS# TOTAL NUMBER OF WELLS#50 NOS.#PROJECT DURATION#MAXIMUM 6 MONTHS#MINIMUM WELLS PER BATCH#10 NOS.#WELL LOCATIONS#DIFFERENT WELL FIELD AREAS OF DUBAI#DRILLING METHOD#ROTARY RIG DRILLED WELLS#DRILLED DIAMETER#12-INCH DIAMETER#WELL DEPTH#APPROXIMATELY 230 FT TO 300 FT# WELL CASING DIAMETER#8-INCH TO 10-INCH PVC#WELL CASING THICKNESS#12 MM#AGE OF WELLS#APPROXIMATELY 5 - 15 YEARS (DRILLED IN 2003)#WEL L STATUS#EXISTING WELLS IN OPERATION / PRODUCTION#EXISTING EQUIPMENT#PUMP, MOTOR, AND WELL HEAD WITH CONCRETE FOUNDATIONS#3. SCOPE O F WORKTHE CONTRACTOR SHALL PROVIDE ALL MANPOWER, EQUIPMENT, TOOLS, MATERIALS,TRANSPORTATION, SUPERVISION, TESTING INSTRUMENTS, AND C ONSUMABLESREQUIRED TO EXECUTE THE WORKS SAFELY AND EFFICIENTLY.THE SCOPE OF WORK SHALL INCLUDE, BUT NOT BE LIMITED TO, THE FOLLOWING ACTIVITIES:3.1 MOBILIZATION AND SITE PREPARATION·#MOBILIZATION OF DRILLING/WELL CLEANING EQUIPMENT, AIR COMPRESSORS,LIFTING EQUIPMEN T, GENERATORS, AND SUPPORT VEHICLES TO DESIGNATED WELLFIELD LOCATIONS.·#SITE INSPECTION AND VERIFICATION OF EXISTING WELL CONDITIONS PRIOR TOCOMMENCEMENT OF WORKS.·#ESTABLISHMENT OF SAFE WORKING AREAS IN ACCORDANCE WITH DEWA SAFETYREGULATIONS AND ENVIRONMENTAL REQ UIREMENTS.·#COORDINATION WITH DEWA REPRESENTATIVES FOR WORK PERMITS, SHUTDOWNARRANGEMENTS, AND WORK APPROVALS.·#3.2 PUMP AND MOTOR R ETRIEVAL·#SAFE DISMANTLING AND RETRIEVAL OF EXISTING PUMPS, MOTORS, RISE PIPES,CABLES, AND ASSOCIATED ACCESSORIES PRIOR TO COMMENCEM ENT OF CLEANINGACTIVITIES.·#PROTECTION OF ALL RETRIEVED EQUIPMENT FROM DAMAGE DURING HANDLING ANDSTORAGE.·#INSPECTION OF REMOVED EQU IPMENT AND REPORTING OF ANY DEFECTS ORABNORMALITIES TO DEWA.3.3 WELL CLEANING AND REHABILITATIONTHE CONTRACTOR SHALL CARRY OUT COMPR EHENSIVE WELL CLEANING ANDREHABILITATION ACTIVITIES USING APPROVED METHODS SUITABLE FOR PVC-CASEDPRODUCTION WELLS.THE WORK SHALL INC LUDE:·#REMOVAL OF ACCUMULATED SAND, SILT, CLAY, SCALE, DEBRIS, AND OTHERDEPOSITED MATERIALS FROM THE WELLS.·#RESTORATION OF WELL PRO DUCTIVITY AND HYDRAULIC EFFICIENCY.·#REMOVAL OF OBSTRUCTIONS AFFECTING WELL PERFORMANCE.THE CLEANING METHODOLOGY MAY INCLUDE:A. MECH ANICAL BRUSHING·#BRUSHING OF CASING AND SCREEN SECTIONS USING SUITABLE BRUSHING TOOLSTO REMOVE SCALE DEPOSITS AND ATTACHED SEDIMENTS .B. AIRLIFTING OPERATIONS·#AIR COMPRESSOR-BASED AIRLIFTING TO REMOVE LOOSENED SEDIMENTS, DEBRIS,AND SUSPENDED MATERIALS FROM THE WEL L.C. WELL DEVELOPMENT·#DEVELOPMENT OF WELLS USING APPROPRIATE TECHNIQUES TO IMPROVE YIELDAND WATER QUALITY.·#CONTINUOUS CLEANING UNT IL DISCHARGE WATER BECOMES CLEAR AND SAND-FREEWITHIN ACCEPTABLE LIMITS.D. ADDITIONAL CLEANING METHODS·#ANY ADDITIONAL APPROVED CLEAN ING OR REHABILITATION TECHNIQUESREQUIRED TO RESTORE WELL PERFORMANCE, SUBJECT TO DEWA ENGINEER APPROVAL.3.4 INSPECTION AND TESTING·# Qty: 50 STANDARD TERMS & CONDITIONS 1) Prices should be DDP delivery duty paid at DEWA stores. 2) Quotation to be submitted only in local currency U.A.E Dirhams 3) DEWA Standard payment terms is 30 days credit from the date of acceptance of material 4) No DEWA staff or his or her relatives up to third degree should have ownership or partnership in your company, and your participation in DEWA tenders / RFQs should not constitute a Conflict or perceived Conflict of Interest. Supplier Registration: https://srm.dewa.gov.ae/irj/portal/anonymous/regis Tender Link : https://srm.dewa.gov.ae/sap/opu/odata/sap/ZSRM_RFX_REG_BID_SRV/AttachmentSet(2332601169)/$value

Refer document

FileName	File Description
Global Tender Document	e3c6bde5-98c0-4901-894f-1083d23d0f6d.pdf