Hydrofracturing and acid fracturing
Hydrofracturing is an effective method of oil recovery improvement.
There are two main types of hydrofracturing: hydrofracturing with fixing of fractures (proppant hydrofracturing); hydrofracturing without fixing of fractures (acid fracturing).
In carbonate reservoirs apply generally acid fracturing, as for terrigenous reservoirs - hydrofracturing with fixing of fractures .
Oil production stimulation
Oil production stimulation is the package of measures for reservoir stimulation considerably improving the efficiency of oil production.
The Krezol group proposes high-quality technological solutions and own-produced chemical reagents for oil production stimulation from productive reservoirs with low permeability, as well as from the reservoirs which changed the filtration properties during formation drilling and field operations on wells.
Well development is the package of works on stimulation of fluid (gas) from reservoir into the well, providing its productivity according to local produced opportunities of reservoir or with achievement of necessary well injectivity.
The Krezol group proposes high-quality technological solutions and own-produced chemical reagents for development of wells and stimulation of reservoir fluid from the producing horizons on a surface for the purpose of achievement of wells rated capacity.
Well killing is the package of works on well killing by pressure control backfilling with solution of rather high density.
The Krezol group proposes high-quality technological solutions and own-produced reagents for well killing.
Chemicalization management system
Chemicalization management system is an integrated solution to the problems of combating complications at all stages of production, transportation and oil treatment using reagents, technologies, scientific support, monitoring and maintenance service at contractor′s expence.
Main areas of activity in the implementation of chemicalization management system
Development of chemicals appropriate for any oil field with any kind of complications;
Production of reagents;
Logistics to the end user;
Injection in the oil field;
Monitoring and scientific support of projects;
Design, installation and maintenance of fixed and mobile dosing units.
The main stages of implementation of complete chemicalization
Onsite examination of existing and potential complications;
Laboratory selection of reagents and technologies. Testing for compatibility with other reagents;
Delivery of reagents to the end user;
Injection of reagents and maintenance of dosing units;
Monitoring of the systems of oil production, treatment and transportation;
Correction measures aimed at increasing the effectiveness of the treatments produced;
Permanent reporting to the customer;
Increased responsibility and focus on the final technological effect (reduction of accidents, improvment in quality of oil treatment, equipment lifetime extension).
Water isolation and squeeze cementing
Water isolation and squeeze cementing is the package of works on shutdown of water intrusion ways into a well production facility and shutoff of separate reservoir and watered intervals.
The Krezol group proposes high-quality technological solutions and own-produced reagents for water isolation and also lost circulation zones during squeeze cementing implementation by selective methods.
Acid compositions for well treatment of injection well stock in carbonate reservoirs
Mud-acid compositions for well treatment in terrigenous reservoirs
Self-diverting acid compositions for oil and gas well treatment in carbonate reservoirs
Dry acid compositions for oil and gas well treatment in carbonate reservoirs
Well killing fluids
Chemicals for production, treatment and transportation of oil
Integrated compositions for bottomhole treatment and highly sophisticated bottomhole treatment, water isolation, non-damaging well control
Solvents of asphalt, resin, paraffin deposits for oil and gas well treatment
Asphalt, resin, paraffin deposits inhibitors of detergent action
Hydrogen sulphide and low-molecular-weight mercaptan scavengers
Clay inhibitor for drill mud
Lubricants for drill mud