SUMMARY DESCRIPTION OF PROJECTS AND CLIENT LIST

Transcription

1 SUMMARY DESCRIPTION OF PROJECTS AND CLIENT LIST Year Client Field/Location Details 1994 Mobil Oil Exploration Kirinskaya West site, North- Piston drop sampling. Geophysical East Sakhalin Survey Mobil Oil Exploration Kirinskaya East Site, North- Piston drop sampling. Geophysical East Sakhalin Survey Exxon Neftegaz Limited Bautin site, Sakhalin Site Survey 1994 Exxon Neftegaz Limited Losin site, Sakhalin High resolution seabed survey 1994 Exxon Neftegaz Limited Dagi site, Sakhalin High resolution seabed survey 1995 MorNeftegaz Sakhalin Site Survey 1995 Mobil Oil Exploration East site, Sakhalin Site Survey 1995 Mobil Oil Exploration West site, Sakhalin Site Survey 1995 Mobil Oil Exploration Myngin site, Sakhalin Site Survey 1996 Exxon Neftegaz Limited Site Survey, Sakhalin 1996 Exxon Neftegaz Limited Site A, Sakhalin 1996 Exxon Neftegaz Limited Site B, Sakhalin 1996 Exxon Neftegaz Limited Site C, Sakhalin 1997 Exxon Neftegaz Limited Arcutun-Dagi-Northern, High resolution seabed survey/ Sakhalin 1997 Exxon Neftegaz Limited Arcutun-Dagi-South, High resolution seabed survey/ Sakhalin 1997 Exxon Neftegaz Limited Site E, Sakhalin High resolution seabed survey/ 1997 Exxon Neftegaz Limited Chayvo Site, Sakhalin High resolution seabed survey/ 1997 Exxon Neftegaz Limited Dagi-9, Sakhalin 1997 Exxon Neftegaz Limited Dagi-10, Sakhalin 1997 Exxon Neftegaz Limited Dagi-13, Sakhalin 1997 Exxon Neftegaz Limited Dagi-14, Sakhalin 1997 Exxon Neftegaz Limited Van Oord ACZ, b.v. Geotechnical investigation Dagi 9, Dagi-10, Dagi-13, Dagi-14, Northern GBS, Southern GBS, pipeline route Geotechnical rotary boring to depth 100 m with continued sampling and PCPT. Chayvo Site, Sakhalin Pipeline Route Survey. Sakhalin-2 Investment, Pipeline Route Survey. Sakhalin-2 Co., LTD Piltun-Astokhskoye Site B, Pipeline Route Survey. Sakhalin-2 Sakhalin Lunskoye Site A, Sakhalin Pipeline Route Survey. Sakhalin-2 Prigorodnoye Site, Sakhalin Pipeline Route Survey. Sakhalin-2 Installation of Molikpaq Soil sampling & Laboratory testing Platform, Sakhalin on Volvox Delta. Sakhalin-2 Client List 1

2 1999 Exxon Neftegaz Limited Exxon Neftegaz Limited 2001 TRANSMOST Tatar Strait 2002 Exxon Neftegaz Limited 2002 Exxon Neftegaz Limited 2002 Exxon Neftegaz Limited Geotechnical investigation GBS sites, Chayvo area, Sakhalin Sakhalin-2. Piltun- Astokhskoye and Lunskoye Site, Sakhalin,. Prigorodnoye Site, Aniva Bay, Sakhalin Tatar Strait, Shelf of North- East Sakhalin Chayvo Jetty, Chayvo Bay Bridge and Chayvo Road sites, Sakhalin Onshore engineering Survey pipeline Center Line Chayvo Well Pad Near shore of Sakhalin Island 2002 Schlumberger Anadyr Bay, Chukotka 2003 Exxon Neftegaz Limited 2003 Exxon Neftegaz Limited Investment Company (SEIC) SEIC Subcontract with Fugro Survey Pte Ltd 2003 Nippon Steel Corporation 2003 URS Australia PTY Ltd 2003 TOA Corporation Sakhalin Branch Office Chayvo and Uangi Shore Approaches of Sakhalin Island. Sakhalin I. Chayvo Well Pad, Piltun-Astokhskaya and Lunskoye field, Sakhalin- II Sakhalin II. Piltun- Astokhskaya, Lunskoye field, Prigorodnoye Sakhalin I, Sakhalin Export Terminal, DeKastri Sakhalin II. Prigorodnoye. Sakhalin II. Prigorodnoye Exxon Neftegaz Limited Chayvo Wellsite Rotary drilling with continued sampling and PCPT. Sakhalin-1 Site Survey, High resolution Seismic survey, Pipeline Route Survey, Shore crossing. Pipeline Route Survey, Shore crossing. Geotechnical rotary boring to depth 40 m with continued sampling. Rock coring. Oil pipeline route survey including tidal zones and shore approaches. Site survey. Geotechnical rotary boring to depth of 85m with sampling and CPT. Sakhalin-1. Geotechnical survey for Bridge Construction between Main land and Sakhalin Island Winter Geotechnical and Geophysical survey from ice for Jetty and Bridge Construction. Geotechnical survey for Road Construction. Geotechnical survey program to define the center line of the onshore export pipeline between Odoptu OPF to Chayvo OPF mys Uangi mys Kamenny DeKastri. Sakhalin-1 Hydrographic and topographical survey for landing barge for site survey including high resolution seismic (HRS) Winter bathymetry survey for Topography Survey at Chayvo Bay Coast Ice Scour Survey Campaign Provision of Survey Services for pre construction/uxo Survey. and onshore Topographical, Bathymetric & Geotechnical Surveys Geotechnical Survey for LNG-Tanks in Prigorodnoye Geophysical and Geotechnical Survey for LNG Loading Jetty Geotechnical investigation of the Chayvo Wellsite Client List 2

3 2004 Nippon Steel Corporation 2004 Dalmorneftegeophysika Sakhalin I. Chayvo bay and Val River Marginal area (Sea of Okhotsk, transition zone) 2004 Van Oord ACZ.. Tatar Strait and Sea of Okhotsk Fugro Survey Pte Ltd Sakhalin II. Sea of Okhotsk 2004 URS Corporation (Japan), Prigorodnoye, Sakhalin 2004 McDermott Inc and Armor Group Poong Lim Industrial Co., DeKastri export Terminal 2004 Fluor Intercontinental Inc TOA Corporation Sakhalin Branch Office PS НС Neftegazstroi (Japan-Russia) 2005 Gydrotryboprovod OJSC 2005 Svarog LLC Baltic sea 2005 Svarog LLC Black sea 2005 NIPI Inzhgeo Ltd Electrosakhmontazh LLC (Starstroi) 2005 Vostokgeologiya OJSC Sakhalingrazhdanproect Institute OJSC Kostromaneftegaz OJSC 2005 Sakhalin s Ltd FSUE SakhNIRO 2005 Exxon Neftegaz Limited. On Ice Geotechnical Survey Chayvo & Val River for HDD Crossing Provision of seismic surveys 3 D on license area of Petrosakh Ltd. by seismic signal source Geophysical and Geotechnical Survey. UXO survey. Geophysical Survey. pipeline. Geotechnical surveys on the LNG area for Tank-3 designing, DeKastri Geophysical Survey, UXO Survey., Chayvo site, Prigorodnoye, Aniva bay, Tatar strait VCTO project (East Siberia Pacific Ocean pipe line). Perevoznaya bay, Primorski krai VCTO project (East Siberia Pacific Ocean pipe line). Perevoznaya bay, Primorski krai Central pipe line rout Kirovsky graben, Sakhalin Region Kunashir island, Kurils Holmsk district, Sakhalin Sakhalin-3, Veninsky license block, sea of Okhotsk Geotechnical Survey. Geotechnical Investigations for Reconstruction of motor road from OPF to Chayvo shore crossing. (Platform Yastreb ) Level investigations and bathymetric surveys in Aniva bay Near shore bathymetric and geophysical survey, diving sea bed investigation Geotechnical survey, 50 boreholes drilling Geophysical survey on the pipe line rout Russia Germany Geophysical survey on the pipe line rout Dzhugba Lazarevskoye Sochi drilling operations from the survey vessel Diabaz Drilling of technical boreholes and vertical ground electrodes installation along the pipe line rout Region seismic survey CDP on 2D technology and onshore geotechnical, engineering geophysical survey for motorway engineering and coast protection Exploratory seismic operations 2D, nonexplosive source geotechnical survey, high resolution seismic Izmenchivoye lake, Sakhalin Determination of seismic sources Region elastic waves impact on marine life, DeKastri Geotechnical Survey from Ice near export Terminal shore Chihacheva Bay. Client List 3

4 2005 Fluor Intercontinental Inc. Crushed Stone Laboratory Tests Exxon Neftegaz Limited. Subcontract with Nippon Steel Corporation 2005 Nippon Steel Corporation, Phase I. Development, Phase I. Development 2005 CTSD Japan Prigorodnoye, Aniva bay 2005 Fluor Intercontinental Inc. Road OPF Chayvo-drilling site Exxon Neftegaz Limited Petrosakh Ltd. Territorial field, Sakhalin Kholmskneftegaz OJSC Holmsk district, Sakhalin Kamchatneftegaz (Rosneft / Korean national oil company KNOOC) Venineft (Rosneft / Chinese national oil company SINOPEC) Elvary Neftegaz Ltd. (Rosneft / BP) Investment Company (SEIC) Western Kamchatka shelf Sakhalin-3, Veninsky license block Kaigano-Vasukansky block Sakhalin Exxon Neftegaz Limited Exxon Neftegaz Limited Tomgazneft OJSC Electrosakhmontazh LLC (prime contract of Starstroi LLC) Starstroi LLC Kamchatneftegaz LLC Rosneft / KNOC (South Korea) Odoptu north controlled directional drilling site, Krasnogorskaya area, Lamanonsky subsoil plot, Tomari district Central pipe line rout ПК on the pipeline rout Performance of Plate load Tests on Ice in Tatar Strait Geotechnical survey for telecoms tower for Uangi and Kamenny Sites Bathymetric survey in soil fault point Geotechnical survey along the way of heavy cargo transportation Three years services agreement on objects and site survey by Sakhalin 1 Seismic survey execution on 3D technology (site three-dimensional survey). Exploratory seismic survey 2D, nonexplosive source geotechnical survey, high resolution seismic geotechnical survey, high resolution seismic geotechnical survey including deep geotechnical drilling (to the depth of 150 m), static penetration test, high-precision geophysical borehole survey Five years services agreement on objects and site survey by Sakhalin 2 Five years services agreement on objects and site survey by Sakhalin 1 Geotechnical survey on OPF site for controlled directional drilling Execution of exploratory seismic survey by seismic reflection method CDP on 2D technology Drilling of technical boreholes and vertical ground electrodes installation along the pipe line rout Drilling of 125 boreholes with the depth of 2,5 m for block valve station fence West-Kamchatsky license block, West -Sykhanovskaya geotechnical surveys, high and North-Krutogorovskaya resolution seismic areas, sea of Okhotsk Topographic and geotechnical surveys near Holmsk for dumping ground construction Client List 4

5 «Elvary Neftegaz» Ltd. (Rosneft/ BP) Venineft LLC Rosneft / SINOPEC (China) Exxon Neftegaz Limited Exxon Neftegaz Limited Sakhalin V project Sakhalin III project East coast of Krilion peninsula, Aniva bay. Morzh gulf Pipeline rout Odoptu- Chayvo The first stage of quarrying of the Odoptu field, Okha district (Piltunsky cable) Investment Company Ltd., (GEOMATIKA) Production-commercial company "YUKO" LLC Exxon Neftegaz Limited Tomgazneft OJSC 2008 Venineft LLC 2008 Exxon Neftegaz Limited 2008 Exxon Neftegaz Limited 2008 Scientific production association Mostovik LLC 2008 Starstroi LLC 2008 Geotransengineering LLC 2008 PiterGaz LLC Kitovy bay, Iturup island of the Sakhalin Region, Arkhutun-Dagi field, Sakhalin, pipeline rout South-Daginskaya area, Sakhalin Veninsky license block, North-Veninskaya area, sea of Okhotsk The first stage of quarrying of the Odoptu field Okha and Nogliki district (Piltunsky cable) Chayvo field Bosfor strait Eastern, Primorski krai, onshore pipelines, Stream 1С Sakhalin Region, Okha and Nogliki districts Nevelski strait (between Lazarev cape on the continent and Lakh cape on the Sakhalin island) Program of laboratory testing geotechnical surveys with the purpose to prepare the area for temporary refuge of jack-up drilling rig. Topographic and geotechnical surveys Geotechnical surveys on South platform for drilling site installation Topographic and geotechnical surveys near Korsakov, Porechye village for dumping ground construction, topographic and positional works on Molikpaq platforms, PA-A, PA-B, LUN-A, LNG/OET. geotechnical surveys by the project "Reconstruction of Kurilsky marine terminal in Kitovy bay, Iturup island of the Sakhalin Region" geotechnical surveys on Arkhutun-Dagi field for GBS platform and pipeline rout, Sakhalin Investigations for geo-hazard identification Performing the exploratory seismic surveys on 3D technology Calculation of immersion depth of jack-up drilling rig «Transocean Nordic» support pillar Geotechnical surveys on the area, from the north drilling site for Odoptu to Chayvo OPF Development and preparation of bathymetric chart of Chayvo field geotechnical surveys for bridge crossing construction between Vladivostok and Ruskiy island. Drilling of 1062 boreholes for retroreflective warning signs foundation along the pipeline rout Primary acquisition for designing and construction of the object main gas pipeline Sakhalin-Khabarovsk- Vladivostok geotechnical and geophysical surveys for designing main gas pipeline Sakhalin- Khabarovsk-Vladivostok Client List 5

6 2008 FSUE Verhnevolzhskoye aerogeodezicheskoye predpriyatiye 2008 Venineft LLC 2008 Gasflot LLC 2008 Exxon Neftegaz Limited 2008 Investment Company Exxon Neftegaz Limited Exxon Neftegas Limited Arctic marine geotechnical expeditions OJSC, Sigma Neftegaz Service LLC Venineft LLC Scientific-research institute of natural gases and gas technologies- Gazprom VNIIGAZ LLC Venineft LLC Transneftegazproekt LLC, Fluor Daniel Eurasia Ink. Okha and Nogliki districts of the Sakhalin Region (mys Chayvo - mys Uangi) Veninsky license block South-Veninskaya and North-Veninskaya-2 sites Sea of Okhotsk shelf, Kirinskoye oil field The first stage of quarrying of Odoptu field Sakhalin 2 Stage 2 Prigorodnoye, LNG site, Sakhalin Chayvo bay North-East shelf of Sakhalin. Arkutun-Dagi oil and gas field Yuzhno-Sakhalinsk Sakhalin-2 project, North-east of Sakhalin, Nogliky region, Boatasyn settlement Yuzhno-Sakhalinsk Sakhalin-3 project Veninsky license block North-East shelf of Sakhalin North-East shelf of sea of Okhotsk, Kirinskoye gas field. Aquatic area of Korsakov port, Lososei Bay Sakhalin-1 project, North of Sakhalin, of onshore pipelines and facilities of Arkutun-Dagi field Design and exploration works for designing main gas pipeline Sakhalin-Khabarovsk-Vladivostok geotechnical surveys, high resolution seismic for placing floating drilling rig engineering surveys for jack-up drilling rigs, MFDR installation on drilling locations of two boreholes Geotechnical surveys on South drilling site Onshore geotechnical survey for Tank 3 Topographic and bathymetric survey within Chayvo near shore zone along the AD pipeline route Preparation of Technical Report: Engineering Geological surveys for AD offshore pipeline in accordance with Russian standards Soil laboratory testing in accordance with ASTM-D1140 requirements Full complex of engineeringgeological works (topographic survey, geotechnical, geological investigation, seismic and environmental studies) on Boatasyn GTT Site and 20 inches gas pipeline between KP25-26 for the development of project working documentation Consultation services at the provision of seismic exploration works by 2D technology on Polyarninskaya site geotechnical, geophysical survey and acquired data processing for JDR positioning on North- Veninskaya-2 site as well as high resolution seismic Preparation of the reports on Engineering surveys on the Kirinskoye gas field Additional sea bed survey by side scan sonar with the purpose of detection and mapping the hazardous objects for JDR positioning on a temporary station Engineering survey for the construction of water injection flowline 20 crossing Chayvo Bay by horizontal directional drilling method, additional engineering Client List 6

7 ,, Pitergas LLC Tomgazneft LLC SEIC, Arctic marine geotechnical expeditions OJSC Modern construction technologies LLC 2010 DNIIMF OJSC 2010 VNIPIgazdobyicha OJSC 2010 VNIPIgazdobyicha OJSC 2010 Gazflot LLC 2010 VNIPIgazdobyicha OJSC Sakhalin-2 project, North-east offshore of Sakhalin Piltun-Astokhskaya, Lunskoye field Sakhalin-2 project, Sakhalin region, Lugovoye settlement Dalnee settlement Nevelsky strait, between Uangy cape (Sakhalin) and Kamenniy cape (Khabarovsk) Nogliki district, Sakhalin region Sakhalin-2 project, Sakhalin region Uzhno-Sakhalinsk Aquatic area of Nevelsk port, Sakhalin region, Nevelsky district Prigorodnoye settlement, Aniva bay Kirinskoye field, shelf of the Okhotsk sea Kirinskoye gas condensate field, shelf of the Okhotsk sea Kirinskoye field, shelf of the Okhotsk sea Kirinskoye gas condensate field, shelf of the Okhotsk sea survey along the linear part of flowline Annual Monitoring Surveys of PA-B, Molikpaq, LUN-A fixed platforms and TLU Engineering-geological survey for the access road between Lugovoye settlement and GTT in Dalnee settlement Geotechnical survey (boreholes drilling, geophysical works, СРТ) for the construction of new main gas pipeline route «Sakhalin- Khabarovsk-Vladivostok» along the line of crossing through Nevelsky strait Interpretation of 3D seismic survey data South-Daginsky site Topographic survey on the sites of different SEIC facilities Soil laboratory testing in accordance with ASTM requirements Provision of offshore engineeringgeological survey on the object Reconstruction of the federal property objects of fishery complex in Nevelsk sea port Provision of offshore engineeringgeological survey on the object Reconstruction of the jetties No.3 and 4 of Prigorodnoye sea port Acquisition, analysis and compilation of fond, archive materials of engineering survey of past years. Development of engineering-geological report of main designing solution stage on the object Kirinskoye gas condensate field construction Acquisition of primary data for the provision of design and exploration works on the objects of Kirinskoye gas condensate field construction Engineering-geological survey with the purpose of MFDR positioning on the drilling location. Including HRS. Calculation of anchor holding power. Complex (engineering-geological and engineeringhydrometeorological) survey for the designing of onshore production facility Client List 7

8 Year Client Field/Location Details 2010 Ingeocom LLC PiterGaz LLC May-June, August, October, August, August- September, September, September- October, December, Investment Company Ltd. ZhelTrans LLC. ZhelTrans LLC. NIPI InzhGeo Ltd. Fluor Daniel Eurasia Inc. Geoinzhservis LLC. Gazflot LLC. Venineft LLC. Gazprom Geologorazvedka LLC. Gas pipeline OPF Kirinskoye gas condensate field Sakhalin GKS Sakhalin-2 project, Sakhalin region Kirinskoye Gas Condensate Field, shelf of the Okhotsk sea Sakhalin-2, Sakhalin Region Korsakov Port, Sakhalin Region Korsakov Port, Sakhalin Region terminal in De- Kastri in Chikhachyova Bay, Khabarovsk Region Eastern coast of Piltun Bay, shelf of the Sea of Okhotsk Lunsky Bay, north-eastern part of Sakhalin Shelf in the Sea of Okhotsk West-Kamchatka License Block, shelf of the Sea of Okhotsk Sakhalin-3, Veni License Block, north-eastern shelf of the Sea of Okhotsk North-eastern shelf of the Sea of Okhotsk, Kirinsky field Laboratory investigations of soil and water Monitoring of hazardous geological processes along the pipeline route complex engineering geological survey for underwater production facility design Engineering-geological survey and land survey at the sites of different facilities of SEIC engineering-geological survey (drilling of 3 boreholes to the depth of 20 m) for modernization of Jetty 1 in the southern part of Korsakov Port Extra offshore engineeringgeological survey in Korsakov Port (drilling of 4 CPT boreholes) for modernization of Jetty 1 in the southern part of Korsakov Port engineering-ecological and hydro meteorological surveys, engineering-geological report based on archive data of Oil products pipeline Komsomolsk Oil Refinary De-Kastri Port» Geodetic and hydrographic survey of the onshore and offshore sections of the 16-inch pipeline, Odoptu FSP project. Odoptu First Stage Production Facility. SPT survey of temporary cofferdam construction site for «Development of Kirinsky gas-condensate field» Integrated offshore engineering survey at two sites for positioning of MFDR at the prospect drilling locations at West-Kamchatka License site Integrated offshore engineering survey and data processing for positioning of MFDR at the prospect drilling location at «North-Veni-1» site. Integrated offshore engineering survey for positioning of MFDR and drilling vessel at the drilling locations of two wildcats at South- Kirinsky-3 and South-Kirinsky-4 sites. Client List 8

9 November, November, February, May August, May November, April May, VNIPIgazdobycha JSC Exxon Neftegaz Limited Managing Company Sakhalin Coal Terminal LLC. «NK Rosneft» OJSC «Omskneftekhimprojekt» OJSC «PrimorProjektByuro» LLC. May, «Venineft» LLC. July, «NPO Mostovik» LLC. October, Complex offshore engineeringgeological survey for positioning of MFDR and drilling vessel at South- Kirinskaya 5 and 6 sites. November, December, August- November, September- December, October- December, «Gazprom Geologorazvedka» LLC. «Gazprom Geologorazvedka» LLC. «Gazpromgeologorazvedk a» LLC. «Gazprom Geologorazvedka» LLC. «Gazprom Geologorazvedka» LLC. «Marine construction and technologies» LLC. Gas processing facility site, Kirinsky gas-condensate field, Chayvo field Southern part of Tatar Strait, Izylmetieva Bay, Sakhalin Island Primorski Krai, basin of Vrangler Bay and Nakhodka Bay (industrial site of Eastern oil and gas company) Sakhalin Region, Kholmsk, territory of the northern harbor of the sea port Sakhalin-3. Lososey bay in the water area of Aniva Bay Yuzhno-Sakhalinsk Sakhalin-3. Kirinskaya structure in north-eastern shelf of Sakhalin Island Sakhalin-3. Kirinskaya structure in north-eastern shelf of Sakhalin Island Sakhalin-3. West-Kamtchatka license block in the shelf of the Sea of Okhotsk Sakhalin-3. Aiyashskiy license block in the shelf of the Sea of Okhotsk Sakhalin-3. Aiyashskiy license block in the shelf of the Sea of Okhotsk Primorski Krai. Basin of Uliss Bay Extra engineering-geological survey at the gas processing facility site (drilling of 3 boreholes) for design of the onshore production facility as a part of the investment project «Development of Kirinsky gascondensate field». Preparation of the technical report. Results of engineering-geodetic and engineering-geological surveys. «Development of Chayvo field. Orlan offshore platform. Drilling operations». and onshore engineeringgeological and geophysical surveys for «carbon terminal at Izylmetieva Bay» Engineering survey for construction of the offshore terminal, dissipating outlet of discharge liquid and water inlet of sea water for purposes of the oil and gas complex Engineering-geological survey for modernization of the sea port (construction of the protective quay pier) survey (bathymetric and sonar surveys) at the site of SEFDR standing Preparation of the report of engineering-geological conditions of Nevelski Strait in the area of bridge crossing to Sakhalin Island based on archival materials. engineering-ecological survey for positioning of MFDS and survey vessel at sites # 3, 4, 5 and 6 of South-Kirinsky field engineering-ecological survey for positioning of MFDS and survey vessel at Pervoocheryodnaya site engineering-ecological survey for positioning of MFDS and survey vessel at Aiyashskaya site for construction of a wildcat engineering-ecological survey for positioning of MFDS and survey vessel at Aiyashskaya site for construction of a wildcat Engineering-geological survey for construction of a home station in Uliss Bay Client List 9

10 May December, October, September, January, 2013 October, May, 2013 Investment Company Ltd. Exxon Neftegaz Limited Exxon Neftegaz Limited Exxon Neftegaz Limited Sakhalin-2. Route of oil- and gas pipeline OPF Chayvo LNG Prigorodnoye, territory of LNG plant, Prigorodnoye settlement, Sakhalin Region. Coastal strip and a channel of the mouth of Piltun Bay to crossing with ENL pipeline. Northern Well Site Odoptu.. Northern (NWS) and Southern (SWS) Well Sites Odoptu. Drilling operations and monitor wells servicing Onshore engineering-geological survey at the sites of Odoptu field Engineering-geological and geophysical (well logging) surveys for modernization of Well Site Odoptu (Station of gas compression and injection) Engineering-geological survey at the Northern and Southern Well Sites Odoptu Client List 10