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Keywords: circulation
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Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 23–25, 2024
Paper Number: SPE-220905-MS
... Abstract Lost circulation on drilling wells within the fractured limestone reservoir results in a significant loss of time when treating the losses. Furthermore, lost circulation can be detrimental to well productivity due to the damage caused by the influx of lost circulation material (LCM...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 23–25, 2024
Paper Number: SPE-221068-MS
...) T ( t , r ) = T e i − Q 4 π k e E i ( − c e ρ e r 2 k t ) . Note that in this paper, heat lost by the formation (i.e., NWZ) to the wellbore circulating fluid, is considered positive. Using log approximation of the Ei function, Eq. 2...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 23–25, 2024
Paper Number: SPE-220832-MS
... hurdles to accommodate for the creeping salt mass. Excessive loss of circulations at the exit boundary between the salt and the subsalt sediments was the dominant challenging operation. Spotting lost circulation material associated with reducing the mud weight was not enough to recover the damaged bore...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 23–25, 2024
Paper Number: SPE-220885-MS
... at surface, which is a major Health Safety and Environment (HSE) issue, topped with the inability to maintain fluid circulation which causes formation leak off and inevitably induced reservoir damage. This paper discusses under-balanced coiled tubing intervention of live wells for descaling operations...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 23–25, 2024
Paper Number: SPE-220811-MS
... Abstract Curing severe to total lost circulation in naturally fractured/vugular formations has always been challenging, especially across the Middle East. In these environments, conventional particulate lost circulation materials (LCMs) are seldom effective due to the uncertainty on the sizes...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 23–25, 2024
Paper Number: SPE-221039-MS
... fracture wellbore design sedimentary rock geology rock type drilling fluid management & disposal drilling fluid chemistry drilling fluid property well control drilling operation wellbore integrity geological subdiscipline carbonate rock annular pressure drilling circulation gradient...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 16–18, 2023
Paper Number: SPE-214836-MS
... annular pressure drilling drilling equipment production logging well control rop production monitoring exhibition production control dht circulation spe annual technical conference diameter united states government directional drilling hpht drillstring design wellbore equation downhole...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 16–18, 2023
Paper Number: SPE-214861-MS
... Abstract To combat the problem of lost circulation during drilling, lost circulation materials (LCM) have most commonly been added to the drilling fluid to seal the fractures and recover the rate of penetration (ROP). In recent years, fibers have become an attractive addition to many lost...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 16–18, 2023
Paper Number: SPE-215040-MS
... Abstract Mud Cap Drilling (MCD) is a technique from Managed Pressure Drilling (MPD), which is used when all conventional attempts fail to solve the loss of circulation. MCD places a very high drilling fluid density, called Mud Cap (MC), in the annulus above the lost zone to prevent the mud from...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 16–18, 2023
Paper Number: SPE-215071-MS
... subsea system operator shutdown christmas tree implementation subsea valve circulation preventable hydrate blockage summary table replacement flow assurance hydrate blockage valve hydrate prevention procedure communication Introduction Gas hydrates are complex formations that arise...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 3–5, 2022
Paper Number: SPE-210122-MS
... drilling operations at temperatures greater than 302°F circulating bottomhole temperature. complex reservoir drilling fluid management & disposal upstream oil & gas hpht high pressure high temperature drilling fluids and materials procedure operational procedure geothermal gradient...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 3–5, 2022
Paper Number: SPE-210132-MS
... in its supercritical form. Under static conditions, the CO2 remained in its supercritical form and showed no migration in SOBM, making its detection more challenging than for a methane influx. Driller's method was applied while simulating circulating the CO2 influx. For both mud types, the model showed...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 3–5, 2022
Paper Number: SPE-210002-MS
... Abstract Cementing hydraulic modeling software is a powerful tool used to evaluate the hydrostatic impact during cementing placement. The input of accurate data can simulate the Equivalent Circulating Density (ECD) impact of the cementing design in the wellbore. The same software can utilize...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 3–5, 2022
Paper Number: SPE-210252-MS
... completed the pressure ramp, then entered and drilled through the NMWW. The hole was drilled and enlarged simultaneously to 12 in. to section target depth (TD) at 5118 m. Losses at a rate of 3.5 to 5m 3 /h were encountered (lost 26m 3 ) when circulating to increase mud weight from 2.16 to 2.20 sg to follow...

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