Oilfield services

Support of well intervention

Technically and economically evaluated programme of well intervention optimizes oil and gas well development and increases oil recovery factor, conformance control and slowdown of production-decline rate due to watercut control.

Specialists of our engineering center select candidate wells carefully taking into account geological characteristics and pressure and temperature conditions of a field.

Bottomhole acidizing

Efficient method of recovery and improvement of skin zone filtration characteristics to improve performance of producing wells and injectivity.

Цели и задачи:

  • improving performance of producing wells and injectivity;
  • incremental oil production;
  • bottomhole zone pollution abatement;
  • improvement of bottomhole zone filtration characteristics;
  • introduction of by-passed oil;
  • pumping equipment maintenance (cleaning from scale);

The range of application:

  • type of a reservoir: carbonate, terrigenous

The need to carry out such complex projects is connected with the following factors:

  • reserve recovery complexity increase;
  • underexploration of most fields;
  • increase of resources necessary to analyze fields geology and development in more details;
  • lack of well-qualified personnel and work load of departments.

Technology process

  • Services:
    • the selection of candidate wells;
    • the selection and laboratory tests of acid solution;
    • the selection of technology / design planning;
    • bottomhole treatment performance;
    • bottomhole treatment analysis;
  • Technologies:
    • acidizing of vertical / horizontal wells;
    • acidizing before remedial cementing;
    • acidizing of pumping equipment;
    • alternative acid solutions;
    • foam-acid treatment;
    • selective acidizing;
    • removing of reaction products by: swabbing, nitrogen, jet pump;

Distinctive features:

  • individual approach and comprehensive assessment of every well, and result integration of well testing when selecting candidate wells;
  • individual design on the basis of bottomhole treatment purpose;
  • supervising work performance – the control of acid solution quality;
  • prompt recommendation on improvement of bottomhole treatment;
  • application of bottomhole treatment results to plan further treatments and their efficiency improvement step-by-step;

Physical-chemical methods of oil recovery improvement

Effective methods for oil recovery factor improvement, conformance control, and slowdown of oil production decline due to water cut control.

Goals and objectives:

  • the rational use of injected water energy at the late stage of oil field development;
  • recovery of remaining oil in place from watered layers;
  • efficiency improvement of oil and gas displacement;
  • optimisation of hydrocarbon production due to development of supplementary discovery;
  • incremental oil production;

Distinctive features:

  • selecting candidate wells carefully taking into account geological characteristics and pressure and temperature conditions of a field;
  • application of the testing results (hydrodynamic, tracer) when designing a programme of physical-chemical methods of oil recovery improvement;
  • successful practices of treatment of fields with carbonate and terrigenous reservoirs;
  • commitment to eventual results - incremental hydrocarbon production by developing supplementary discovery;

The range of results application:

  • type of a reservoir: carbonate, terrigenous;
  • high water cut;
  • low volumetric efficiency;
  • reservoirs characterized by water influx (high-permeability sublayers);
  • high permeable heterogeneity;

Technology process:

  • the selection of candidate wells: well testing and geological and technological model;
  • the selection of technique and calculation of injectivity;
  • assessment of processing efficiency;
  • analysis of implemented physical-chemical methods of oil recovery improvement;

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