Alend Ltd Oil & Gas Services

    In September 2024, our company, together with LOGSERVIS LLC, performed geophysical
surveys using standard and extended complexes in one trip on a drilling tool with parallel
descent of a geophysical cable in an exploratory well of one of the subsoil users of the
Komi Republic.
   The surveys were conducted using the KarSar SKaT system, which implements the "wet 
contact" technology, which allows for equipment setup and data transmission to the
surface in real time. When using KarSar SKaT, the instrument assembly is powered from
the earth's surface via cable, which allows for monitoring the data recording process.
   The implementation of standard and special GIS complexes in one trip allowed for a
significant reduction in well maintenance time and saved the Customer's money.
   The special survey complex included such geophysical methods as: gamma ray 
spectrometric logging, nuclear magnetic logging and an electric microscanner.
	Nuclear magnetic logging allowed:
 - to estimate the parameters of the reservoir properties (Kp, Kpr) independent of the
   lithology and composition of the matrix;
 - to determine the presence of hydrocarbons in low-resistivity low-contrast sediments;
 - to estimate the parameters of Kov, Kon for effective planning of development of fields;
 - to select the optimal scheme of testing and completion of the well.
	The electric microscanner allowed:
 - to make accurate photorealistic images of the walls of the drilled well with possibilities 
   for petrophysical interpretation close to the core evaluation (plus the ability to orient
   the unoriented core);
 - to make a detailed geological and sedimentological interpretation inaccessible without
   using this method;
 - to make a quantitative assessment of secondary (fracture and cavernous) porosity
   - mapping of potential inflow zones of complex reservoirs (with an assessment 
   of the openness) and faults.