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“LUKOIL Uzbekistan Operating Company” LLC “TEXNET” “LUKOIL Uzbekistan Operating Company” LLC “TEXNET” Scientific Production Enterprise APPROVED “LUKOIL Uzbekistan Operating Company” LLC _____________ Gurzhiy S.L. “_20_” _September_ 2013 DRAFT ENVIRONMENTAL IMPACT STATEMENT SUPPLEMENTS TO ENVIRONMENTAL IMPACT ASSESSMENT FOR CONSTRUCTION OF WELLS AT KHAUZAK-SHADY BLOCK OF DENGIZKUL FIELD Director “TEXNET” SPE _____________ A. Kh. Nurjanov “___” _______________ 2013 Tashkent 2013 2 TERMS AND DEFINITIONS DRILLING WASTES - the wastes generated during well drilling, they include drilling cuttings, drilling sewage waters, waste drilling mud. DRILLING SEWAGE WATERS - the waters produced during washing of drilling site, drilling equipment and tool; contain drilling mud and chemicals residues. DRILLING CUTTINGS - a mix of the rocks particles, cutting agent, formed during drilling and waste drilling mud. RECIRCULATED WATER (circulating) - the water used in technological process or for cooling of products and the equipment and re-supplied for the same purposes (aggregative norms) following treating and cooling in water-cooling towers or other facilities. WATER INTAKE – water intake from a reservoir, waterway or from groundwater source. WATER-SUPPLY WELL – well for subsurface water intake, equipped, as a rule, by casing pipes and filter. WATER-BEARING HORIZON – the water-bearing beds family, close by conditions of formation and geological structure and hydrological interconnected. SALINE WATERS - the waters containing mineral substances in significant amount. Distinguish low - (0.5-5g/dm3), medium - (5-30g/dm3) and high-salt (more than 30 g/dm3 of soluble salts) waters. POTABLE WATERS – the waters in which bacteriological, organoleptic indexes and indexes of toxic chemical substances are within the range of potable water supply norms. WASTE WATERS - the waters which are drained following use in human household and industrial activity. INDUSTRIAL WASTE WATERS – the waters following use in production process. HOUSEHOLD WASTE WATERS - the waters produced from dumps of settlements. ATMOSPHERIC AIR - 1) the natural gases mix which have developed during Earth evolution; 2) air out of living spaces or industrial premises. WASTES TEMPORARY DISPOSAL – wastes storage in the plant’s territory in places specially equipped for these purposes or in other allowed and equipped areas prior to their use in the subsequent process cycle or sending for processing, recycling to other plant or permanent wastes disposal facility. EMERGENCY EMISSION – ingress of pollutants in natural environment as a result of breakdown in technological process or accident POLLUTION – introduction in environment or occurrence in it of new physical, chemical, information and biological agents, normally not specific for it or excess of natural average and long-term level during the period in question. ATMOSPHERIC POLLUTION – introduction in air or formation in it of physical agents, chemical substances or the organisms adversely effecting on life environment or causing loss to material assets. LOCAL POLLUTION – the pollution of small region (normally, in the vicinity of industrial plant, settlement, etc.); distinguish also spot pollution from the unit tube or fugitive source. HARMFUL SUBSTANCES DIACHARGE SOURCE - the technological unit, installation, device, apparatus, etc., discharged pollutants substances while in operation. HARMFUL SUBSTANCES EMISSION SOURCE - the device (a pipe, aeration skylight, airshaft, etc.), by means of which there is pollutants emission into the atmosphere. “Dengizkul field Khauzak-Shady Block Wells Construction Environmental Impact Assessment” EIAS Project Addendum 3 ENVIRONMENTAL (HUMAN) MONITORING – monitoring of natural human environmental conditions and prevention of created critical situations harmful or hazardous to human health and other live organisms. BOWELS - the part of earth crust located below the soil layer, and in its absence - below the earth surface or the bottom of the water bodies reaching to the depths accessible for exploration and development. WASTES - the residues of raw materials, materials, half-finished products, and other products or products which were formed during manufacture or consumption, as well as goods (products) which lost consumer properties. PRODUCED WATERS – the water from water-bearing bed, one or several lithologically homogeneous layers containing gravitational water and characterized by close hydraulic interrelation. In this PFS the waste waters containing in reservoir conditions of gas storage in vaporous state and passing into liquid phase during gas production concern to produced waters. FERTILE SOIL LAYER – top humus part of soil body possessing favorable chemical, physical and biological properties for plants growth. NATURAL RESOURCES – the natural objects and phenomenon used for direct and indirect consumption for the purpose of creation of material benefits, maintenance of human living conditions and products quality improvement. LANDS RESTORATION – the complex of works directed to restoration of productivity and national-economic value of the disturbed lands, as well as to improvement of environmental conditions according to society interests. At the operating plants attributable to disturbed lands the lands restoration shall be an integral part of technological processes. “Dengizkul field Khauzak-Shady Block Wells Construction Environmental Impact Assessment” EIAS Project Addendum 4 USED ABBREVIATIONS MMS Mud Mixing System DWW Drilling Waste Waters BKR Bukhara-Khiva Region DC Drilling Cuttings DB Derrick Building GWL Geophysical Well Logging GOA Gas-oil Area FL Fuels and Lubricants ICE Internal Combustion Engine CMC Carboxymethyl Cellulose OBA Oil Bearing Area PS Production String WDM Waste Drilling Mud EIA Environmental Impact Assessment LLC Limited Liability Company SE Surrounding Environment DEIS Draft Environmental Impact Statement BOP Blow-out Preventer MPC Maximum Permissible Concentration, mg/m3 NC Natural Complex BS Blowout Safety RD Regulation Document SM Safety Measures HHW Household Waste HC Hydrocarbons “Dengizkul field Khauzak-Shady Block Wells Construction Environmental Impact Assessment” EIAS Project Addendum 5 TABLE OF CONTENTS TERMS AND DEFINITIONS ...................................................................................................................................... 2 USED ABBREVIATIONS........................................................................................................................................... 4 LIST OF TEXT TABLES ............................................................................................................................................. 6 TABLE OF TEXT FIGURES ........................................................................................................................................ 7 INTRODUCTION ..................................................................................................................................................... 8 1 EXISTING ENVIRONMENT ............................................................................................................................... 9 1.1 GEOGRAPHICAL LOCATION AND CLIMATIC CONDITIONS ........................................... 9 1.2 SURFACE AND SUBSURFACE WATERS ............................................................................13 1.3 SOILS AND GROUNDS .........................................................................................................18 1.4 BOWELS ................................................................................................................................20 1.5 FLORA AND FAUNA ............................................................................................................21 1.6 EXISTING SOURCES OF ANTHROPOGENIC IMPACT ......................................................28 1.7 OVERVIEW OF KHAUZAK AND SHADY BLOCK..............................................................30 1.8 PERSONNEL HEALTHSTATUS AND SOCIO-ECONOMIC ASPECTS ...............................31 2 PLANNED ACTIVITY AND ITS ENVIRONMENTAL IMPACT .............................................................................32 3 ENVIRONMENTAL AND SOCIO-ECONOMIC CONSEQUENCES ......................................................................48 3.1 EXPECTED EMISSIONS .......................................................................................................48 3.2 EXPECTED WATER RESOURCES WITHDRAWAL AND WASTE WATERS DISPOSAL ..79 3.3 EXPECTED WASTE ..............................................................................................................83 3.4 NOISE AND VIBRATION .....................................................................................................92 4 ANALYSIS OF ALTERNATIVES OF PLANNED ACTIVITY AND TECHNOLOGY CONCEPT ....................................95 5 ORGANIZATIONAL, TECHNICAL AND PROCESS SOLUTIONS, AND MEASURES EXCLUDING NEGATIVE ENVIRONMENTAL CONSEQUENCES DURING WELL CONSTRUCTION PERIOD ........................................................96 6 EMERGENCY SITUATIONS ......................................................................................................................... 102 7 NATURAL ENVIRONMENT MONITORING IN DRILLING .............................................................................. 110 8 FORECAST OF ENVIRONMENT CHANGES .................................................................................................. 115 CONCLUSION .....................................................................................................................................................
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