Eng. Frank Carrion’s Post

From SPE 36425, a graphic showing the importance of rate of dynamic fluid loss from18.5 ppg cesium formate fluids on ROP while drilling sandstone. Note that rate of dynamic fluid loss from a conventional water-based hematite mud of the same density has no apparent effect on ROP - it stays dismally low.

Drilling with hollow core drill bits for the dust is a must application in a mine!

Friday Drilling Haggler: The chart below shows actual SO, ROB and PU weights on connections while drilling the reservoir section on a high angle well. Why are there no slack-off weights shown below 7800m? What could be the reason for this? #drillingoperations #drillingengineering #drilling

the Formation Integrity Test used to determine the maximum mud weight can the next section hold, the predetermined test pressure as calculated below: Test pressure (psi) = 0.052 x Casing shoe TVD (ft) x [Required higher drilling mud density b/gal) – drilling fluid density currently in use (Ib/gal)].

Most popular of #_borehole_problems is shale problem there are most common types of shale: 1-Mechanical Shale Caving : due swelling shale, So when POOH or RIN drilling strings may Be hit formation and damage it more and more . 2-Pressurized Shale Caving : due to difference in pressure ( FM Shale > HP) 3-Bit Balling shale: when drill a sticky shale, due to a electrochemical interaction between solids in mud and metal of strings. Prefect Solution for bit balling : Caustic Soda Pill. or adding NUT PLUG With 30-50 RPM to remove any sticky shale around bit. Rashpetco (Shell-JV) #_holeproblems #_wellservice #_drillingoperation #_drillingfluid ENPPI #_shaleproblem

CLAYMASTER® will greatly reduce or eliminate clay cuttings from sticking to each other and to the drilling tools. Swelling of the bore will be reduced or eliminated resulting in significant reduction of rotation and pullback pressures. https://lnkd.in/d2Nasic4

SDR= Self-Drilling and Hollow Core rockbolts for pumpable resin or grout. R thread self drilling anchor bolt system performs drilling, grouting & anchoring in one step. Easy to process and no risks of drill hole collapse. Suitable for unstable conditions. #epirock #undergroud #tunnel

2024's drilling will begin with infill drilling down dip of drill hole SHD-17-01. The following image presents a cross-section of El Limon that shows the spatial relationship between the mine & drill intercepts, with a parallel vein interpreted between drill holes SHD-17-01 & LDDH-21-004.

Well Done

Assay results have been received from drill hole 23PCCD0002 at the Cumbre Coya target within Firetail Resources’ Picha #Copper Project and intersected the same mineralised structure as the first drill hole (23PCCD0001). These results confirm the mineralised structure extends over 170m in strike length and is open in all directions. Further drilling at Cumbre Coya and Cobremani targets is planned to follow-up on previous drilling. Learn more: https://loom.ly/CUTUtmI #FTL #FiretailResources #silver #ASX