LandmarkCompass培训（仅供参考）.pptVIP

Drilling and Well Services Software What is COMPASS? A suite of software tools for Directional Well Planning - Planning Module Survey Management - Survey Module Calculating positional uncertainty and wellbore separation - Anti-Collision Module Creating hardcopy plots - Wallplot Composer Module Displaying results using various online graphics and reports Construct data repository for storing deviation data that can be linked other data modules. COMPASS Modules Planning Module Enables you to design the shape of the proposed wellbore Survey Module Calculates a wellpath’s actual trajectory Anti-Collision Module Checks the separation of surveyed and planned wellpaths against any number of offset wells Site Optimiser Module Determines optimum site location to minimize all drilling. Vertical Section Origin Geodesy Science of measuring earth’s surface Earth is round and maps are flat A geodetic system enables the conversion of geodetic co-ordinates (angles on a round earth - latitude/longitude) to map co-ordinates (distance on a flat map - easting/northing) To do this we must know the geodetic system, the datum and the zone Geodesy Geodetic System One or more map projections covering adjacent parts of the globe. May be comprised of one or more zones Geodetic Datum Defines a common reference and shape for the surface of the earth in the area of interest Zone One segment of a geodetic system. Each zone may map a different area Grid System TWO COMMON PROJECTION MODELS: UTM Grid System Divides world into 60 equal longitudinal Each zone is 6 deg wide Distortion increases toward the north Lambert Conformal Conic Projection Transverse Mercator (TM) System Transverse form of Mercator projection: This is equivalent to wrapping the cylinder around an Earth ellipsoid so that it touches the central meridian throughout its length. Universal Transverse Mercator The earth is divided into 60 zones Any point on the earth may be identified by it’s Zone number “Northing” “Ea