How to do Well Cementing Process Properly?

Cement is employed in drilling operations to for protection and support the casing, and prevent the movement of fluids from the formation to the surface, through the annulate space on the outside of the casing. Cement is also utilized to avert the fluid flow into fractured formations, outside of purposes evidently related to the boring and building of a well. Cementing process can be used to close and abandon a partial portion of the well, and also abandon a well that is in production.

What are the purposes of well cementing in the construction of an oil well?

This is done with an intention to glue and sustain the well casing to the walls of the well and therefore offer steadiness with following drilling and accomplishment processes of the well.

When the diverse holes are cemented in the drilling of wells, it is done to isolate the dissimilar zones, like this, isolation of the diverse fluids present in the dissimilar formations, with this we evade possible passages of fluids that could pollute freshwater aquifers, guard the oil-producing formations, amongst other aids.

Another cause for cementing is that the cement protects the casing from weathering and stress, with the aim of continuing drilling the next holes.

What can affect proper compliance in the well-cementing Procedure?

During cementing, many factors can alter or affect the performance of the process and the grout after setting at the bottommost of the well, so here is what should be kept in mind while cementing:

Grout Design: The design of the grout should be as per the necessities of the well, and have combined a program meeting the requirements of the well construction, it is vital to keep in mind all the elements while deciding on the grout design.

Elaboration of the cement: It is expedient to select the composition and elaboration of cement that is agreeable with the cementation procedures of the oil industry.

Hole geometry: If the hole can’t be built with an apt drilling rate, using a measured drilling mud rheology, the hole geometry will be designed with hollows, and generally it will not be the straightest hole, therefore if the hole does not have balanced geometry possible short of caverns and holes, then the cementing procedure will not be done aptly.

Equipment fiasco: It is essential that the apparatus works optimally, for instance, if the pump fails, the cementation process is delayed, affecting the period of the setting of the mix (grout).

Personnel with little expertise: If the workers involved in cementing operations are not experienced, there will be mistakes that would delay the cementing time, and therefore would affect the time of cement setting, the grout properties would be lost, and even the pumpability would be hampered.

These are some factors that interfere unfavorably in the cementing procedure, though, there can be many more, it depends on the elements incorporated, remember that the more cementing is done, the more knowledge is gathered and new sanctions rise based on factors influencing this procedure unfavorably.