SIBBURMASH Group of Companies

Casing Running Services

The casing running system (CRS) is a technological solution for safe and efficient running of casing into the well, enabling run-in with rotation and circulation. This is critical in troublesome intervals: rotation helps pass restrictions and reduces the risk of differential sticking, while circulation removes cuttings and prevents the build-up of mud rings.

Stages of service support

  • Pre-project preparation. Load calculations for the string, selection of casing hardware, centralizers and turbulizers, risk modeling and definition of run-in and circulation modes.
  • Equipment preparation. Multi-stage inspection (steel, wall thickness, threads, geometry), numbering and assembly of “measures” (joints), fitting of running hardware (shoe, float collar, stop rings, etc.).
  • Running the string. Real-time monitoring of parameters (weight, pressure, volumes, speed), with rotation via the CRS where needed, intermediate circulation and reciprocation.
  • Centralization and depth-correlation control. Optimal placement of centralizers and turbulizers, correlation of the string position to geological markers (using logging/telemetry).
  • Final operations and reporting. Final circulation, valve tightness check, preparation of as-built documentation (act, parameter table, report, photo and video materials) and, if required, analysis and recommendations.

Advantages

  • fast mounting on the top drive — a single threaded connection;
  • no hydraulics; reliable operation in Far North conditions;
  • the ability to begin reciprocating the string with simultaneous circulation and rotation at any point during run-in;
  • fewer personnel involved in the casing-running process;
  • increased casing-running speed;
  • a significant reduction in non-productive time.

Casing run-in ∅426 / 324 / 245 / 178 / 168 mm with rotation

  • casing running system (CRS);
  • power tong with bottom grip and a set of jaws (optional);
  • hydraulic power unit (optional);
  • computerized make-up torque logging system (optional);
  • reaming shoe with PDC cutters / hydraulic reaming shoe;
  • float collar (optional);
  • set of centralizers (optional);
  • torque rings (optional);
  • engineering load calculations for casing run-in;
  • work-plan preparation;
  • round-the-clock engineering support.

Casing run-in without rotation

  • casing running system (CRS or CRT);
  • power tong with bottom grip and a set of jaws (optional);
  • hydraulic power unit (optional);
  • computerized make-up torque logging system (optional);
  • set of hardware (shoe, float collar, centralizers) (optional);
  • round-the-clock engineering support.