...) with effective design optimizations. Methods, Procedures, Process The workflow consists of risk assessment, offset data analysis, HT (high temperature) model calibration, model-based sensitivity analysis, and design optimization on BHA, hole size, and parameters. Multiple modelling software are used...

... this success in similar applications. upstream oil & gas drilling equipment bha installation directional drilling cement whipstock operation united states government operation application stub junction drilling operation whipstock abandonment operation whipstock system milling...

... after installation and at different periods after installation (set-up effect), underdifferent loading conditions. The test drilling rig consists of two main parts: an isostatic supporting structure and a jetting bottom hole assembly (BHA). All parts were designed to emulate real operational conditions...

... in recent years: high-frequency torsional oscillations (HFTO) ( Jain et. al. 2014 , Zhang et. al. 2017 ). The vibration frequency of HFTO could be identified to be in the range between ~50 Hz to above 400 Hz depending on the bottomhole assembly (BHA) and string configuration. The root cause for this type...

... de pozos petroleros completion installation and operations fluid loss control upstream oil & gas breaker treatment bha barrier valve filtercake bypass valve assembly packer filter cake injectivity riser level acid service tool application washpipe valve open hole back pressure...

... to the interception of the original well. The BHAs used, drilling parameters, planned and actual well path will be discussed. The rotary steerable performance and settings while drilling to intercept the original well and the survey strategy receive special attention. Discussion about the BHA selection after...

... which allows for unlimited activation and deactivation through downlinking via either mud pulse telemetry ore wired drill pipe. Either activation or deactivation takes a maximum of three minutes to execute. The integration enables flexibility in placement of the reamer (s) in the BHA and thus the near...

... -5/8-in. liner. This initial dogleg would accommodate the planned RSS and liner BHA to run to target depth without issue. Abstract In a Gulf of Mexico (GOM) ultradeepwater well, liner integrity issues forced an operator to consider milling a conventional casing exit to sidetrack as deep...

... for pumping rates, HP/HT conditions, well kill fluid, milling, and cleanouts where obstructions hindered BHA penetration. The proposed best practices presented here are for primary CT operations involved in the complete PnP cycle, such as wellbore displacement, well dummy run-drift, setting the isolation...

... reduce the effective frictional coefficient regardless of whether the string is sliding or rotating. The DATs are sometimes used in conjunction with standalone STs, which are placed in a remote location where the DAT displacements may be out of range. Standalone STs placed at the bottomhole assembly (BHA...

...) equipment. After pressure measurements were taken, the underreamer was actuated with RFID tags to enlarge the entire 650-ft openhole section with less than a 13-ft rathole. In the last case study, an RFID circulation sub was deployed above other bottomhole assembly (BHA) components, including an RFID...

... to set the casing close to total depth and manage the critical formation pressure zones. The past run was utilized with a conventional ball drop main reamer with single activation and deactivation. After 1,640 ft (500 m) the bottom hole assembly (BHA) reached a critical section. Multiple attempts...

... assemblies (BHAs) place a concentric hydraulic underreamer above the rotary steerable system (RSS) and measurement-while-drilling/logging-while-drilling (MWD/LWD) package. Although this placement is effective, it could leave up to 200 ft (61 m) of under gauge rathole at TD, which often leads to a dedicated...

.... offshore technology conference main floor society of petroleum engineers development well injector rig bha directional drilling top quartile ultra deepwater well drillship casing and cementing completion overview drilling equipment producer conductor casing design upstream oil & gas...

.... The decision was made to perform the cement job through the 8 ½-in. Bottomhole assembly (BHA) containing measurement while drilling (MWD) and logging while drilling (LWD) tools. The combination of deepwater, riserless, potential shallow hazards and pumping through a BHA with significant restrictions made...

... design, and fluid design for spacer and mud wash fluid; are issues which are considered in this method. Case history C Godøy et al. (2012) illustrated how to pump cement through bottomhole assemblies (BHA), to plug holes. This method has been used to; cure critical mud loss, plug back pilot holes...

... OTC 20370 Dynamic BHA Modeling of Hole Enlargement While Drilling Leads to ROP Improvement in Gulf of Mexico Myles Barrett, Shell International E&P, Molly Compton, Mukul Agnihotri, Fernando Verano, Simon Mitchell and David Fitzmorris, Smith International Copyright 2010, Offshore Technology...

... ¾ inch bit and below an 8 ½ inch hole-opening reamer, above which were the rest of the 6 ¾ inch LWD collars. Some tools had stabilizers to centralize the collars in the borehole. Figure 2 shows the configuration of the LWD bottom hole assembly (BHA). For additional information about the measurements...

... for a 13 3/8?? DCWD; World's first application of Gyro MWD with DCWD. assembly bha torque rop application otc 20880 efficiency directional platform upstream oil & gas seawater top hole section inclination operator high viscosity sweep dcwd drilling operation OTC 20880...

.... One modification that caused a huge impact on time and cost saving is the combined improvement in the design of the directional bottom-hole assembly (BHA) and polycrystalline diamond compact (PDC) bits. Capturing Best Drilling Times. Histograms and Ultimate Drilling Curve One of the main goals...