el fayoum Gas Pipeline - European Investment Bank

More documents

Recommendations

Info

El Sadat – El Faium Gas Pipeline Environmental Impact Assessment 3 : project Description OHSAS 18 0 0 1 shall be dried to -40 degree F dew point Stainless steel shall be blown out with dry air. RUST PREVENTION The cleaning contractor shall apply a rust preventative on the internal surface of cleaned carbon steel piping immediately after drying. Lube oil and seal oil piping shall be coated with a rust preventative approved by the equipment manufacturer 3.7.9 DISPOSAL OF CHEMICALS All chemical streams, rinses and drains shall be contained or shall be collected in suitable vats or tanks. No streams shall be allowed to drain upon the ground. Approval must be obtained prior to start draining any material to an existing sewer system. 3.7.10. WATER BODIES CROSSING METHODOLOGY Crossing of Water bodies and main canals in this project shall not be done by the traditional open-cut method. It shall be done using a new technology named Horizontal Directional Drilling. Horizontal Directional Drilling (HDD) is a trenchless methodology that provides an installation alternative that can offer a number of benefits over traditional open-cut. HDD can be implemented with very little disruption to surface activities, requires less working space, and may be performed more quickly than open-cut methods. Also, it can simplify or eliminate certain permitting processes. This type of installation which was applied in municipal underground infrastructure systems and petroleum products pipelines has seen a dramatic increase in recent years. Although there are currently no national standards regarding HDD installations for any pipe material, HDD pipeline installations are becoming more and more common and may be the fastest growing trenchless construction method today. They can be used to install new pipelines or replace existing ones. The technique stages are illustrated in Fig. (3.1), which shows the operation in three stages, as follows: Stage 1 The drilling rig and its associated equipment is set up and positioned on one side of the crossing. The carriage framework is inclined to the desired entry angle, which can be between 5° and 30°. Typically the entry angle is set between 10° and 14° to the November 2009 37 Egyptian Natural Gas Co. (GASCO)
El Sadat – El Faium Gas Pipeline Environmental Impact Assessment 3 : project Description OHSAS 18 0 0 1 horizontal. An 80mm dia. Pilot hole is drilled using either a mud motor or a jet bit, attached to 73mm dia. Pilot drill pipe. The steering mechanism is provided by means of a small bend or bent sub, usually less than 1° and situated behind the drill. Changes in direction are achieved by partial rotations of the bent sub, as the pilot string proceeds forward. Figure (3.1) gives a detail of the downhole drilling assemblies with mud motor and jet bit. The progress of the pilot hole is monitored by a directional survey steering tool package. A survey probe is positioned just behind the drill head, which is linked by a hard wire up the center of the drill pipe to a computer and printer located in the control cab. The probe contains fluxgates and transducers which measure data in a threedimensional plan by vector measurement, enabling the course of the pilot hole to be plotted joint by joint. Continuous read outs give the following information: (a) Inclination relative to the vertical plane. (b) Direction of hole relative to magnetic north, and. (c) The orientation of the steering mechanism or bent sub relative to the high side of the hole. The drilled distance is measured at the drilling rig by physically monitoring the down hole pipe lengths. The readily available survey information, combined with the ability to steer and drill, allow the pilot hole to be drilled along the planned profile. Progress or drilling speed depends on the suitability of the drilling medium. As the pilot hole progresses the frictional force gradually increases on the 73mm dia. Pilot string and it then becomes necessary to wash-over the pilot string with 127mm dia. Washpipe. The front of the washpipe is fitted with a cutting bit, typically 300mm dia. And fitted with round 20 kennametal cutting teeth. Unlike the pilot string, the entire November 2009 38 Egyptian Natural Gas Co. (GASCO)
Page 1 and 2: List of contents Chapter number Tit
Page 3 and 4: construction phase 16 Frequency of
Page 5 and 6: List of tables Table No. Title Page
Page 7 and 8: el sadat - el fayoum Gas Pipeline E
Page 15 and 16: El Sadat - El Faium Gas Pipeline En
Page 49: El Sadat - El Faium Gas Pipeline En
Page 57 and 58: El Sadat - El Fauim Gas Pipeline En
Page 77 and 78: El Sadat El Faium Gas Pipeline Envi
Page 101 and 102:
El Sadat - El Faium Gas Pipeline En
Page 103 and 104:
Page 105 and 106:
Page 107 and 108:
Page 109 and 110:
Page 111 and 112:
Page 113 and 114:
Page 115 and 116:
Page 117 and 118:
Page 119 and 120:
Page 121 and 122:
El Sadat EL Faium Gas Pipeline Envi
Page 123 and 124:
Page 125 and 126:
Page 127 and 128:
Page 129 and 130:
Page 131 and 132:
Page 133 and 134:
Page 135 and 136:
Page 137 and 138:
Page 139 and 140:
Page 141 and 142:
Page 143 and 144:
Page 145 and 146:
Page 147 and 148:
Page 149 and 150:
El Noubaria El Sadat Gas Pipeline E
Page 151 and 152:
Page 153 and 154:
Page 155 and 156:
Page 157 and 158:
Page 159 and 160:
Page 161 and 162:
Page 163 and 164:
Page 165 and 166:
Page 167 and 168:
Page 169 and 170:
Page 171 and 172:
HSE Management System نظام إد
Page 173 and 174:
Page 175 and 176:
Page 177 and 178:
♦ HSE Management System نظام
Page 179 and 180:
Page 181 and 182:
Page 183 and 184:
Page 185 and 186:
Page 187 and 188:
Page 189 and 190:
Page 191 and 192:
Page 193 and 194:
Page 195 and 196:
Page 197 and 198:
5- Contracted operations: HSE Manag
Page 199 and 200:
5- Contracted operations: HSE Manag
Page 201 and 202:
Page 203 and 204:
Page 205 and 206:
Page 207 and 208:
Page 209 and 210:
Page 211 and 212:
Page 213 and 214:
Page 215 and 216:
Page 217 and 218:
Page 219 and 220:
Page 221 and 222:
Page 223 and 224:
Page 225 and 226:
Page 227 and 228:
HSE Management System إدارة ا
Page 229 and 230:
Page 231 and 232:
Page 233 and 234:
Page 235 and 236:
Page 237 and 238:
Page 239 and 240:
Page 241 and 242:
HSE MANAGEMENT SYSTEM GASCO-HSE-M H
Page 243 and 244:
Page 245 and 246:
Page 247 and 248:
Page 249 and 250:
Page 251 and 252:
Page 253 and 254:
Page 255 and 256:
Page 257 and 258:
Page 259 and 260:
Page 261 and 262:
Page 263 and 264:
Page 265 and 266:
.Line goes parallel to sumed pipe l
Page 267 and 268:
Line goes parallel to sumen pipe li
Page 269 and 270:
Crossing of gas pipe line to 6 octo
Page 271 and 272:
Line goes for 2 k.m till it reach t
Page 273:
number 1 2 3 4 5 6 7 El Sadat / El
Page 277 and 278:
GASCO Project Department الشرآ
Page 279 and 280:
El Sadat el fayum Gas Pipeline Envi
Page 281 and 282:
Page 283:
show all

el fayoum Gas Pipeline - European Investment Bank

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?