... and evaluating roller reamers while drilling multiple vertical monitoring wells and two, 65º laterals in high-strength granite at temperatures more than 400ºF. Reamers were run in the bottomhole assemblies (BHAs) of one of the vertical wells as well as in the two deviated wells with vibrational sensors...

... As Reasonably Possible) 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...

.... This case history provides the industry an opportunity to replicate 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...

... 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...

... 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...

... underreamer offers flexibility in placement in the bottom hole assembly (BHA) and it can be used as a near bit reamer, or as main reamer or as both. In this case, the integrated near bit underreamer eliminated the need for a dedicated rathole removal run. It also offered a feedback confirmation of the cutter...

... of the offshore well. Based on determinations made in the planning phase, milling of the window and rathole would be staged in two trips. Additionally, a replica drilling bottom hole assembly (BHA), 8 -5/8-in. casing, and a replica production packer would need to pass through the window to ensure both window...

... injectivity, completion restrictions, and heavy brines (which damage CT). To gain further understanding of operations, simulations are sensitized to identify solutions for pumping rates, HP/HT conditions, well kill fluid, milling, and cleanouts where obstructions hindered BHA penetration. The proposed best...

... 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...

... 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...

...) 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...

... pressure anomalies, and ensures that casing strings and liners reach total depth (TD). Common hole-enlargement-while-drilling (HEWD) bottomhole assemblies (BHAs) place a concentric hydraulic underreamer above the rotary steerable system (RSS) and measure- ment-while-drilling/logging-while-drilling (MWD/LWD...

..., the conductor was run from the utility side and passed to the main floor for the jetting operation. While the Jetting assembly was pulled to surface, the next conductor with BHA could be run from the utility side. This was repeated for all seven wells. The 17½ BHA was then run from the main floor and drilled...

.... 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...

... conditions lead to variations of the above-mentioned tools and methods. Presentation of OTC-23915-MS Presentation of OTC-23915-MS guideline saasen upstream oil & gas strength bha casing and cementing compressive strength low strength cement well control abandonment tectonic...

... 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...