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Geonaft – we increase drilling and field development efficiency
Geonaft (subsidiary of Zyfra Group) develops engineering and IT solutions to increase drilling and field development efficiency. We combined geomechanics, geosteering, and petrophysics innovations with cloud digital platform and industrial AI technologies.
Geonaft is a recognized industry expert in CIS Oil&Gas market. We are residents of the Moscow State University Science Park, the Tyumen Technopark and the Skolkovo Technopark. We are actively involved in the life of the leading international communities SPE, EAGE and the US Petroleum Institute. Every year several hundred specialists from the largest russian oil companies improve their skills at the Geonaft Training Center.
Overall well construction time reduction
Initial and cumulative production rate increase
Drilling risks prevention
Life of well prolongation
LWD devices cost optimization
Non-production time elimination
Oil recovery factor increase
Advanced EOR (enhanced oil recovery methods) costs reduction
About
and
in Russia have been constructed using our solutions
geophysics and petrophysics support drilled
Results
- Successful drilling of the first horizontal wells in the Bazhen — Abalak formations of the oilfield.
- As a result of avoiding unstable Abalak formations, no NPT due WB instability was detected.
- The company goals on production were reached by maximizing sweet spot coverage thought trajectory correction in real-time.
- Low permeability formation was studied, and its data used by the company for the future developments.
- The HF ports were located based on extended logs interpretation and for maximizing targeting the areas with high HC saturation.
- Goal
- Drilling the first horizontal wells in the Bazhen — Abalak formations.
- Steering the well into the sweet spot.
- Minimizing drilling risks and NPT
- Challenges
- Inefficient Shale swelling inhibition by the drilling mud.
- Chemical instability of shales.
- Regular log interpretation methodologies cannot be applied.
- Zones with abnormally high pore pressure.
- Target reservoir is the unconventional Bazhen formation.
- Solutions
- Introduction of an extended logging set (determined intervals based on nuclear-magnetic logging and intervals with HC content based on dielectric dispersion multifrequency method) for identification of fluid and reservoir properties.
- Application of high-resolution core thermal profiling.
- Integrated approach of Geosteering, Petrophysics and Geomechanics during drilling in real-time based on LWD data
Results
- The first horizontal well in the region in complex formation structure
- The first ERD in the region successfully performed without NPT due to WB instability
- Achieving of geologic goals in time, regardless of geologic challenges
- Significant production increase in comparison with vertical and directional wells
- Goal
- Drilling of the first ERD well in the region with complex tectonics including rock properties anisotropy, presence of salt and reactive shale
- Challenges:
- The first very extended reach drilling in the region
- Catastrophic instability of shales drilled parallel to bedding
- Shale formation prone to breakouts
- Multiple drilling issues including loss of wells, key seating, mud loss, BHA loss
- Geologically challenging reservoir with uncertainty of formation dip and potential faults
- Solutions:
- Estimation of wellbore stability windows and correction of initially planned trajectory and well completion design
- Choosing the optimal BHA
- 24/7 real-time geomechanical and geological support during drilling
- Proactive risk control during drilling, cementing and completion
Results
- 1000events affecting
the plan - 60different petroleum
products to manage
for different areas of planning across their NOC
logistics, refining and retail business.
- First, the company decided to increase product storage,
but this resulted in a drop in asset turnover. - These solutions have proven their economic efficiency and ensured the required rate of planning.
- Deployment of these Zyfra solutions allowed for an increase in asset turnover and simultaneously reduced penalties by a factor of 5.
- In the end it resulted in a 6% boost in additional revenue for the customer.
WELL
- First horizontal well successfully
drilled and completed - No NPT due to instability
- All objectives were met
WELL IN WEST SIBERIA
- Horizontal section in Target zone: 100%
- Zero NPT due to instability
- The liner reached TD
- The well is opened to production
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