Background

Astrolabe for Geodetic Measurements (AGM), is based on, and a continuation of “Astrolabe Consulting Engineers (ACE)" activity that was founded in the year 1993 in Tripoli, and the sister company “Astrolabe for Geomatics & Mapping” that was founded in 2012in Tripoli, in all we are specializing in geodetic measurements, topographic surveying, photogrammetry, and GIS base mapping. Since then we have executed directly or subcontracted many projects, the main ones are listed below in three different geodetic categories (I- Pipelines, II- Geodetic and Topographic survey, III- Marking in the field the locations of new oil and gas wells to be drilled) and in many projects we also made (IV- Geotechnical Surveys) as follows: -

I- Pipelines

Project	Length	Client	Contractor
Faregh to A103	108 km.	WAHA Oil	Geokart
Ubari to Zawia	750 km.	REPSOL Oil	J&P
Jakhira to A103	80 km.	Wintershall	MAN
Zwitina to Benghazi P. Station	174 km.	Sirt Oil	MAN
EN-Naga to Samah	94 km	IPLL	Astrolabe
WAFA – Mellitah	525 km	AGIP GAS	GeoSurveys
WAFA Gathering area	150 km	AGIP GAS	GeoSurveys
Jakhira GOSP to B1 Manifold	16 km	Wintershall	Astrolabe
Tahaddi to Valve Station	23 km.	Sirt Oil	MAN
Nakhla-Jakhira	45 km	Wintershall	Astrolabe
Jakhira gas lift pipeline	26 km	Wintershall	IV Oil & Gas
Nakhla new Trunk pipline	07 km	Wintershall	Astrolabe
Mabrouq-Bahi pipeline	28 km	Total(C.P.T.L)	Astrolabe
Gharyan trunk pipeline	20 km	Total(C.P.T.L)	Astrolabe
Tuama-N1	25 km	Wintershall	Astrolabe
N1-Nakhla	20 km	Wintershall	Astrolabe
Q1-Nakhla	30 km	Wintershall	Astrolabe
Sarah-N-manifold-Hamid	87 km	Wintershall	Astrolabe
NC118 to Valve station No. 8	59 km	Mellitah Gas	Astrolabe
AGOCO new trunklines	49 km	AGOCO	MAN
Mellitah B.V. oil & gas, water injection network	28 km	Mellitah B.V.	Demont
Nafusa Mountain drinking water project	190 km	General Water Authority	Qasaba
NC47 North of Hamada	238 km	Nafusah Oil Operations	Astrolabe
Area 9 MMRWUA coastal belt	62 km	MMRWUA Authority	Astrolabe
Mellitah B.V. R-82 to A100 12” replacementpipeline	75 km	Mellitah for Oil and Gas	Astrolabe
Waha Oil Company Defa water injection network	66 km	Waha Oil Company	Jabel Oil Services

II- Geodetic and Topographic survey

We have carried out many geodetic and topographic survey works for:-

1-AGIP NAME

-150 ground control points as one network for seismic survey

-45 ground control points for Magneto-telluric survey stations

- we provided the needed local support and all the logistics to make about 175 Magneto-telluric stations.

2- Mellitah Oil and Gas
We carry out topographic and bathymetric survey for phase two of Mellitah complex

3- REPSOL (REMSA)
We have executed the regional control survey in Murzuq Basin and tie to the ITRF stations to establish WGS84 system in the Murzuq and Kufrah basins . Aeromagnetic survey for the concession NC187. and Ground Control for the DTM of M1 block.

4- IPC
We have organized the field survey team and geodetic survey of 600 gravity points for IPLL Company.

5- GMRWUA
We have carried out a lot of geodetic and topographic survey to the Man Made River Water Utilization Authority (Agriculture projects more than 30000 hectares, including design of irrigation networks, earth reservoir, roads, pipelines, ..etc) Abusheba road 23 km. ‘survey and design’, the base maps for 225000 hectares in Tripoli region using Quick Bird Satellite images, and surveying and building a GIS data base for 70000 hectares for agricultural water distribution in the coastal belt in Tripoli region, and now we are carrying out the survey and GIS base mapping and design of water distribution network of about 100 km. to irrigate an existing agriculture project.

6- Wintershall
Beside the above mentioned pipelines we have also executed profile survey for the telecommunication links for the 4 GOSP in Jakhira area, we have also performed geodetic survey to determine all wells locations in their concessions and many wells and markers in and around their concessions, for the exploration department we locate and site survey their new wells to be drilled, we do all of their map-updating and Geo-referencing to their concessions. Air-photo ground control in NC201, and recently 277 gravity points with CG5 gravity meter.

7- Total TLOG and CPTL
Aero magnetic survey for NC191 for Total, Locating and marking the new wells to be drilled in Mabrouk field and in NC191 concession., we have carried out the Geodetic ground control net work for NC42 Block 2&4

8- General Electrical Company of Libya (GECOL)
We have done bathymetric survey for the sea-water intakes for North of Benghazi power station, east of Tripoli power station, West of Tripoli desalination plant and South of Benghazi desalination plant, Derna new water intake system, and new zwarah desalination plant, route selection of High Tension power lines in Tripoli region (Shabiat
Tajoura).

9- Stucky
We have made the topographic survey of the 3 earth dam sites in Wadi Talal in Sirt.

10- Authority of Agriculture
Topographic survey to many agriculture projects, i.e Wadi Il-loud project 10000 hectares, and other site total 100000 hectares, and many other small projects.

11- The Higher Committee for the twin cities of Brega and Ras-Lanouf
We have made the topographic surveys for some small project sites, one at Berat Al-Hassoun and an other at Intisar 103A oil field and a third at the Brega old camp, route selection and detailed surveys for the water pipeline from Ras-Lanouf complex to the reservoir that feeds the town about 20 km long.

12- UNDP
We have made the Cartographic survey of the old city and Oasis of Ghadames and recently completed its GIS data base.

13- Tourism Board investment
We have finished topographic surveying, scale 1:5000 of at least 80 sites for foreign investment along the Mediterranean Sea along the Libyan cost.

14- LAICO
Conducted topographic and soil surveys for two agricultural projects one in CHAD for 20000 hectares and one in Mali for 25000 hectares. (with economic visibility study)

15- SWP
Surveying the first part of Sebha 3rd ring road for geometric design

16- Land Registry Authority (LRA)
We have carried out the field work survey to the rural areas of 10 branch offices, for a total of about 76,530 parcels.

17- Tourist and city map of Tripoli
In cooperation with IFUS in Germany we have produced the tourist map, and the city map of Tripoli.

18- Petro air
We have surveyed up to now six airstrips and connected them to the world geodetic datum (WGS84) and surveyed all obstacles around each airstrip according to ICAO regulations.

III- Marking the locations of oil and gas wells to be drilled
We have set out and marked in the field over two hundreds wells before drilling for:-

a- ENI Gas BV & Mellitah
b- Wintershall Libya
c- Total CPTL-Maprouq
d- AGIP NAME
e- OXY Libya
f- Woodside Energy
g- BG Libya
h- Statoilhydro
i- OMV

IV- Geotechnical Surveys
We have carried out the Geotechnical and the soil resistivity survey for the following projects:-
1- Agip oil UU station compressor units foundation in year 1998
2- Mellitah BV. Gas pipeline from Alwafa field to mellitah plant near Zawara for a distance of 525 km.
3- Wintershall Gas lift project near Jakhira for a distance of 26 km.
4- Total Libya GOSP extension at Almabrouk field.
5- Total Libya 12 “ pipeline export to Bahi field 28 km.
6- Mellitah BV. NC118 pipeline 59 km.
7- Mellitah BV water injection network in A100 for about 28km. of pipelines
8- Mellitah BV 12” replacement pipeline from R-82 to A100 for a distance of 75 km.
9- Waha Oil Company Defa water injection network 66 km. of pipe lines

We had assisted the Surveying Department of Libya in establishing the Libyan geodetic datum of Libya called (LGD2006)

The follow is a list of our present working equipment and accessories:

1- 18 Geodetic RTK GPS units of Lieca System 1250 L5, and 6 RTK GPS units of System 1230 Model GX1230 and 3 units of RTK GPS SR530 real time geodetic differential receivers. With 2 licenses of Geo-office for post processing software also from Leica
2- Hand held GPS navigators from garmin (10) units
3- Modern Survey Total stations one system (1200) from Leica and two total stations from Geotronics
4- Automatic levels
5- Many A0 plotters from HP
6- All needed accessories to do topographic, geodetic and related projects
7- A small survey boat for near off shore bathymetry surveys i.e. for sea water intakes and marinas