Dashava offers well-drilling services as a general contractor.
The company’s specialists, together with our partners, have wide experience in the wells construction of varying complexity. The use of advanced technology and world-class experience allows us to guarantee the quality of services and to implement projects in the shortest time.
Drilling
The company provides all the necessary services for drilling vertical, deviated, horizontal, exploration and development wells.
Dashava performs complex engineering, administrative and legal support of the well drilling process, including:
- development of all project documentation;
- development of environmental protection measures during drilling of oil and gas wells;
- engineering support for drilling;
- providing drilling services;
- providing drilling materials;
- selection and delivery of drilling equipment;
- drilling supervision services;
- rehabilitation of disturbed lands.
Maintenance Works of Wells (MWW)
The company provides a set of works related to the maintenance of well equipment in a working condition to ensure the established mode of operation of wells, namely:
- planned and preventive measures — revision and replacement of tubing, rods, pumps, valves and other equipment, cleaning of sand and hydration plugs, paraffin deposits and salts, reperforating or changing the production horizon, well testing operations, etc.;
- forced — elimination of breakages or unscrews of bars, polished rod, cable damage;
- technological — change of equipment to another standard size, transfer to another mode of operation, installation of new or experimental equipment.
Work over operations (W/O)
Dashava provides efficient work-over operations with the modern set of equipment, quality materials and advanced technologies. The company performs the following types of works::
- repair and isolation works;
- elimination of leaks of an operational column;
- elimination of accidents that occurred during the operation or repair of wells;
- pull-out subsurface equipment from wells after the accidents, bottom hole cleaning, fishing operations in the wells, etc.;
- recompletion;
- installing and removing of bridge-plugs;
- side-tracking with a propose for restoration of well productivity after accidents, encounter additional pay thicknesses;
- production enhancement operations;
- development of secondary methods of wells stimulation;
- temporary abandonment and re-entry of wells.