• Lag time corrected sampling • washing, sieving (fine / coarse) and drying of the samples • Filling the dry samples (fine / coarse) into glas/plastic tubes and label them accordingly • Sample interval according to client or geology • Standard sample interval 5 m • Interval 2 m when approaching casing depth, exploration target or other important layers • Measuring of oil ratio using fluorescence • Determination of calcite/dolomite-ratio in carbonate bearing horizons • Description of the samples according to international standards • Continuous updates of sampler- / litho- / master logs • Compilation of daily reports, weekly reports, monthly and final reports as demanded by the client • Transmission of reports and updated logs by e-mail or fax as demanded by the client • Participation at pre spud meetings, safety meetings and on-site meetings • Immediate reporting about geological and technical anomalies to drilling supervisors and driller • Reporting in German or English

Generally   our   mudlogger   units   operate   day   and   night   (24/7).   The   mudloggers   retrieve   sample   regularly   each   5   m   (depending on   the   demand   of   the   client   and   the   geology)   from   the   shakers.   All   samples   are   lag   time   corrected.   Parts   of   the   wet   sample are stored for possible further investigation of original and not treated rock material in a external laboratory. The   rest   of   the   wet   sample   is   cleaned   immediately   and   sieved   by   grain   size.   The   geologist   analyses   the   rock   sample   under the   microscope   in   order   to   determine   the   composition   of   the   drilled   rock   (if   necessary   with   the   help   of   chemicals).   With   the results   a   litholog   will   be   compiled.   The   analysed   rock   sample   is   stored   (seperated   into   different   grain   sizes)   in   glass   tubes. Thus   lithological   changes   can   be   determined   while   the   drilling   process   is   happening   and   drilling   foremen   and   well   site geologists can be informed as soon as possible.             Our service contains:   

• Core extraction and preliminary core description immediately on the ground • Detailed description of cores in the field laboratory • Documentation of core by incident light and transmitted light photography • Cutting sampling and description at drill sites • Underground activities in salt mines • Detailed reports for clients • Adaptation of all cores and descriptions into the client's data base

The   geologists   of   GeoService   are   experts   for   salt   mining.   They   have   many   years   of   experience   in   salt   mines,   like   for example   in   the   nuclear   waste   repository   Asse   II,      and   have   been   involved   in   underground   drilling   processes.   Furthermore our geologist are experienced at surface salt diapir drill sites, for example at gas storage sites. We   are   present   when   a   salt   core   is   being   drilled   and   oversee   the   drilling   process.   Our   geologists   take   the   core   and   pack them   in   accordingly   labelled   wooden   boxes.   A   survey   and   a   short   description   of   the   core's   lithology   follow   on   the   ground   so that   the   drilling   process   may   be   stopped   if   applicable.   Later   in   our   field   lab   pictures   of   the   cores   will   be   taken   and   the lithology described in detail in order to give suggestions for the further approach.                      Our service contains:   

Continuously complicating deep wells but also obligatory documentation requirements by the clients increase the job specifications for the GeoService staff. The development in data processing within the last decade has been a decisive instrument in improving our quality. The trustworthiness of the sensor technology used by GeoService has been proven and field-tested for many years. By the means of our on-site provided software it is possible to illustrated the data in a variety of display formats. This service has been appreciated by our clients and is very helpful in different situations while drilling. GeoService provides a network that meets the specification of the client. In this way all data can be made available to clients and service companies in real time. Our well trained staff guarantees that the measurement instrumentation and data aquisition runs error-free.