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Drilling control

List of «NT-Geofizika» LLC services for general contract on drilling station building may include:

• Preparing or taking part in process of drilling stations evaluation, drilling risk assessment, hazard assessment, etc.
• Tender documents preparation in accordance with the requirements of the Customer.
• Conducting of tenders and identifying contractors for various types of work.
• Evaluation of contractors professionalism, including inspection of drilling equipment, drilling rig.
• Evaluation of tender proposals in accordance with the requirements of the Customer.
• Participation on behalf of the Customer in the development of project documentation for the construction of wells, as well as in the development of Drilling Fluid Programs, Drilling Programs, Drill Programs, etc.
• Preparation and implementation of the mobilization Plan.
• Organization and management of the construction of a drilling site and access roads.
• Management and administration of subcontractors having direct contractual relations with the Customer.
• Organization, guidance and management of works on the construction, testing and development of wells in accordance with the approved project, as well as overhaul of wells.
• Preparation of reports on the progress of work, daily reports, final reports and other documentation required by the Customer.
• Organization and management of the management of the work during the remediation of the drilling site, etc.

Quality control of contracting organizations

• Drilling.
• Drilling fluids.
• Geophysical research.
• Chisel service.
• Directional drilling.
• Geological and technological research.
• Independent control of the full implementation of technical task by organizations.
• Control of the drilling mud contractor for compliance with planned data quality and quantity of reagents used.
• Control of the geological and technological research service for full compliance with specification, verification of calibration of sensors and gas analytical systems, quality control and quantity of sludge taken out.
• Control of the contractor for geophysics for full compliance with specification.
• Control of bit service and used bits.
• Control of the service of directional drilling for complete fulfillment of specification and absence of unacceptable deviations of the well trajectory.
• Control of the drilling contractor (use of petroleum products, compliance of drilling technology and drilling equipment specification).

Accident free drilling

Structure of the service:

1. Preliminary analysis of drilling program and "experience" of neighboring wells. Creation of a report on possible problems and possibilities for their solution, organization of meetings "Drilling on paper".

• Availability of information on previous wells and measures to solve probable problems.
• Construction of the hydraulic model of the well, correction of washing modes based on this model, calculation of the "window" mechanical speed taking into account the geological model and parameters of the pancreas.
• Construction of the hydrodynamic model of the well, selection of the "drilling window".
• Description of the main controversial issues for the organization of the meeting "Drilling on paper".

2. Control of contractors for the construction of a well at the objectivity of current operational information.

• Independent control of the full implementation of specification by the orderly organizations.
• Control of the drilling mud contractor for compliance with planned data quality and quantity of reagents used.
• Control of the geological and technological research service for full compliance with specification, calibration of sensors and gas analysis systems, quality control and quantity of sludge taken.
• Monitoring of bit service and used bits.
• Control of the directional drilling service for the full implementation of specification and the absence of unacceptable deviations of the well trajectory.
• Control of the contractor for drilling for compliance with drilling equipment technical task.

3. Prompt identification of possible geological and technological problems, prompt notification, proposal of countermeasures, "Analysis" of emergency situations.

• Problems of communication between drilling participants.
• Tool grip: Hole Pack-Off / Bridge, differential tack, mechanical stitch.
• Well geometry.
• Instability of the wellbore.
• Loss of circulation.
• Vibration of the drill string.
• Shows of oil-gas and water.

4.Writing a report on the problems during the construction of the well. Description of measures to prevent these problems.

Estimation and prediction of pressures

Consulting services for forecasting pore pressures.

• Data analysis BEFORE drilling.
• NT-Geophysics staff on the drilling rig for the analysis of pore pressures in real time.
• GCS in the Customer's office for the analysis of pore pressures in real time.
• Advantages of accurate prediction and determination of pore pressures.
• Determination of pore pressures, our analysis, determination, forecast pressure and timely provision of the necessary information for making management decisions with almost 90% accuracy level .
• Prevent unproductive time.
• A positive difference is the stuck tool.
• A negative drop is the destruction of the reservoir, oil and gas displays and related problems.
• Reducing the timing of drilling a well.
• Increase the efficiency of drilling by optimizing the specific gravity of the drilling fluid and the depths of the descent of the columns.
• Optimize the size of the well for maximum protection and production.
• Maintenance of safe drilling conditions.

Directional and horizontal wells

It is designed to control and operatively control the trajectory of the wellbore of directional and horizontal wells during drilling using a wireless electromagnetic communication channel.

Features and Benefits:

• possibility to orient the deflector in vertical sections of the wellbore.
• The possibility of working in a conductor during the drilling of cement stone and reverse throttle cementing valve.
• the ability to provide a defined well trajectory, without stopping the drilling process.
• automatic compensation of the effect of artificial magnetic fields.
• the possibility of controlling the reliability of the measurement of azimuth and zenith.

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