MSC-R1 Stage cementing collar

  MSC-R1 Stage cementing collar is intended for well cementing process performing in two stages, both with and without the lag time.
  The scope of using cement stage collar applies for the following cases:

  The scope of using cement stage collar applies for the following cases:

1. when it is impossible to rise the cementing slurry above the casing string at a requited height in a single action due to hydraulic fracturing and fluid absorption;
2. when the expected operating pressure in a single action cementing exceeds the cementing outfit technical capabilities;
3. in cementing gas and gas-condensate wells, and the wells subject to oil and gas showing;
4. in cementing wells using two cementing slurries different in composition for isolation of layers that differ in temperature or corrosive attack on the support;
5. when it is provided for the production zone to remain uncemented or to avoid displacing the cementing slurry through the casing shoe;
6. when a single action cementing is not possible for organizational and technical reasons (if it is impossible to trigger or arrange simultaneously a large quantity of cementing equipment at the drilling site, for instance, in off-shore drilling).

1. when it is impossible to rise the cementing slurry above the casing string at a requited height in a single action due to hydraulic fracturing and fluid absorption;
2. when the expected operating pressure in a single action cementing exceeds the cementing outfit technical capabilities;
3. in cementing gas and gas-condensate wells, and the wells subject to oil and gas showing;
4. in cementing wells using two cementing slurries different in composition for isolation of layers that differ in temperature or corrosive attack on the support;
5. when it is provided for the production zone to remain uncemented or to avoid displacing the cementing slurry through the casing shoe;
6. when a single action cementing is not possible for organizational and technical reasons (if it is impossible to trigger or arrange simultaneously a large quantity of cementing equipment at the drilling site, for instance, in off-shore drilling).

Consist of:
MSC-R1 Stage cementing collar

Consist of:
Pushing stopper

Consist of:
Falling stopper

Consist of:
Blocking stopper