Lab
Hazzaz BIN Yousuf's Lab
About the lab
Drilling fluid lab. The aim of this lab is improving drilling efficiency by modification and upgrading well drilling mud.
Featured research (2)
The long‐distance pipeline transportation of heavy crudes demands optimal pumping procedures to abate overhead expenditures in the midstream phase. This can be facilitated by reducing both the oil viscosity and the frictional losses induced by the turbulent flow zone. The dualistic approach of reducing both viscosity and drag requires the optimization of several parameters such as concentrations and types of diluents and additives. This manuscript critically reviews various technologies being undertaken to facilitate the pipeline transportation of heavy crude oils by highlighting the technique of dilution coupled with the addition of drag reducing agents (DRA). DRA such as surfactants, nanoparticles, bio‐additives, polymers, and fibres are blended with the diluted crudes to suppress the proliferation of turbulent eddies which in turn assist in pumping the oil at a higher flow rate under constant pressure conditions. Several investigations have reported that drag reduction is significantly enhanced by varying the molecular structure of the DRA. In addition, an optimum flow rate coupled with a specific surfactant concentration at an ideal temperature can significantly reduce head losses and pumping expenditures. Further research is imperative to study the effect of the polymer structure with respect to the induced shear degradation and dissolution behavior of the crude.
In Bangladesh, Water based mud is used for drilling operations rather than oil based mud for a number of reasons like economic and environmental advantages. The mud used for drilling is managed from commercial company which causes a large amount of money. If the mud can be managed from nature which is likely commercial mud, it will result in considerable savings in economic considerations. The purpose of this study is to investigate the quality of natural clay as drilling mud with the rheological properties. An experiment is carried out to justify the viability of using indigenous clay in water-based drilling fluids with the objective of the development of economically acceptable and non-damaging drilling fluid system to drill formations in Bangladesh. Clay samples are collected from four places of Joypurhat district. Natural clay is mixed with water and barite to investigate the rheological properties of the drilling mud. A rotational viscometer is used to carry out the study. Rheological properties such as gel strength, plastic viscosity and yield point of the samples drilling mud are determined. The gel strength is found between 1-3 lbf/100 ft 2 for natural mud where the value is 68 lbf/100 ft 2 for Bentonite (10 sec.). Gel strength of Bentonite is found 80 lbf/100 ft 2 in the analysis where this value is maximum for sample-1 and that is 12 lbf/100 ft 2 (10 min.). Plastic viscosity is 2-5 cp for the natural mud and the Bentonite value is 13 cp. Yield point is comparatively very low than traditional Bentonite. Natural mud in drilling operation helps to reduce overall drilling cost and suitable for environment.