Directional Well Planning: Choosing the Right Profile for Optimal Reservoir Access
Directional well planning converts a geological target into a drillable path. The profile (build-and-hold, S-shape, horizontal or multilateral) follows from […]
Squeeze Cementing: Restoring Well Integrity through Effective Sealing
Squeeze cementing forces cement slurry under pressure into a specific leak path behind casing: perforations to be shut off, a […]
Reference Directions: Navigating the Underground with Precision in Directional Drilling
Every directional survey reports inclination and azimuth at a measured depth, with respect to stated references: vertical for inclination, a […]
Cement Plugs: Securing Well Integrity in Critical Operations
A cement plug is placed in a well to isolate zones, to give a base for a sidetrack, to cure […]
Coordinate Systems and UTM: Navigating the Geospatial Landscape in Drilling Operations
Every well position appears in the permit, the site survey, the directional plan and the anti-collision analysis. If these use […]
Cementation of Liners: Precision in Challenging Well Conditions
A liner is a casing string that does not reach the surface: it hangs from the bottom of the previous […]
Fundamentals of Directional Drilling: Reasons for Drilling Deviated Wells
Directional drilling exists because a vertical well often cannot reach the reservoir from an acceptable surface location. Early applications in […]
Cementing Calculations: Precision for Reliable Well Integrity
Cementing calculations set how much slurry to mix, how much fluid to displace, what pressures the open hole will see […]
Cementing Horizontal and High-Angle Sections: Challenges and Best Practices
Cementing horizontal and high-angle sections combines fluid displacement, casing position, gravity, rheology and a pressure profile that changes as fluids […]
Washes and Spacers: Enhancing Cement Bond Integrity
Washes and spacers are the fluids pumped between the drilling mud and the cement slurry. They keep the two apart, […]