The platform which I worked in belongs to Conocophillips, the other service contractors are all the famous companies such as Halliburton, Schlumberger, Baker Hughes, Weatherford, MI-swaco etc…so I learned more advanced knowledge about drilling and completion, the main drilling and completion method changed several times in the past 7 years due to the development plan .the details as follow:2007.7-2009.4 The drilling and completion method:Make up 8-1/2” Autotrack BHA, drill 8-1/2” open hole with WBM Flopro NT to TD, circulate the hole clean, displace hole to Flopro SF, POOH, run and set 6-5/8”sand screen with swell packers in place, spot EDTA to clean up well bore, run ESP assembly on 3-1/2” tubing string.(or run IB5 assembly, deep-set SCSSV&ESP assembly on 3-1/2”tubing string)2009.5-2011.6 The drilling and completion methods:Make up 12-1/4” BHA, drill 12-1/4” open hole with Versaclean OBM to TD, circulate the hole clean, POOH ,run 9-5/8” casing and cement it, then make up 8-1/2” Autotrack BHA, drill 8-1/2” open hole with Versaclean OBM to TD, circulate the hole clean, perform PST test, POOH. Run and set 6-5/8”sand screen, displace OBM in 9-5/8” casing, run IB5 assembly, deep-set SCSSV@ESP assembly with 3-1/2”tubing string.Make up 12-1/4” GP BHA, drill 12-1/4” open hole with Versaclean OBM to TD, circulate the hole clean, POOH, run 9-5/8” casing and cement it, then make up 8-1/2” BHA, drill 8-1/2” open hole with OBM to TD, circulate the hole clean, RIH 7” casing ,set and cement it. RIH the scraper BHA and displace the hole to brine, RIH and set the sump packer, RIH 5” TCP gun and perforate the well, POOH, run the screen& stack packer assembly, perform Fracpack job, shallow set upper completion string.Some work contents changed after the spill accident in 2011, we used EMI WBM instead of OBM, we performed the SBT logging after the CMT, and performed LOT after drilling out the casing etc…
Listed skills include Drliing Completion Workover, Materials, Completion, and Drilling.