... methods and can do so at the bit in real-time. Traditional pore pressure estimation while drilling utilizes a combination of data sources most of which are detected from logging while drilling (LWD) sensors placed 100's of feet behind the drill bit (where resistivity, sonic, density etc. tools...

... drill skid core drilling machine total duration accuracy nodule sample sediment check valve offshore technology conference drill bit efficient survey tool Introduction: Polymetallic nodules and Manganese (Mn) crust occur on the ocean floor at water depths from 1000 meters to about 6000...

... reentry original well dogleg involuntary sidetrack well path bha sensor offshore technology conference well planning trajectory design drill bit brazilian deep water new leg scenario Introduction After reaching the end of the 12 ¼″ × 13 ½″ section at 3,998 m, the section up to 3,360 m...

... Abstract The pre-salt reserves offshore from Santos basin represent a great opportunity and probably the most important recent oil discovery in Brazil. These carbonate reservoirs are currently drilled with various types of drill bits, and have proven to be a challenging environment. Since...

... conductor bha reservoir surveillance test rig drill bit jetted conductor gpm production monitoring upstream oil & gas flow rate procedure installation flow meter drilling motor lpm production control drilling operation load test bit stick-out offshore technology conference foundation...

..., and adequacy of the support design. The presentation illustrates the simulation methodologies in design, multi-physics and process optimization for a drill-head geometry. additive manufacturing additive manufactured component optimized design workflow drilling operation simulation drill bit...

... interbedded sandstone and claystone interval, a 125-m hard carbonate, and 50m of softer claystone before the casing point. The challenges presented in recent offset wells included high stick/slip, high levels of drill bit cutting structure wear and drill bit body erosion. Polycrystalline diamond compact (PDC...

... as data are added to DRS. OLAP cubes have been developed to analyze the performance of drill bits, motors, reamers, rotary steerable tools, and many more downhole tools. The DRS cubes assist in identifying failure causes on bits to identify high-risk intervals to better target products and parameters...

... Abstract Deepwater drilling often requires simultaneously hole-enlargement-while-drilling (HEWD) to improve project economics and preserve hole size for reaching deep reservoirs. The challenge of having two active cutting structures (drill bit and expandable underreamer) in one BHA is improving...

.... MEMS gyroscopes enable this inertial guidance system to be positioned next to the drill bit, which is a significant improvement over existing magnetometer guidance systems that must be installed 50 to 80 feet behind the drill bit. The shortened reaction reduces drilling time and drilling cost...

... Abstract The drilling operation in the pre-salt Santos basin faced great challengesfrom the beginning, so efforts were concentrated to obtain a better drillingperformance as a consequence of the high daily rates of drilling rigs. In thisway, we look for a combination of drill bits and drilling...

... OTC 20425 Solving the Salt Challenge: Unique Drill Bit Philosophy Delivers Breakthrough Performance in the Gulf of Mexico Steve Barton & Ryan Weeden, NOV Downhole, Graham Mensa-Wilmot & Yoseph Harjadi, Chevron Copyright 2010, Offshore Technology Conference This paper was prepared for presentation...

... lead to unpredictable directional response and reduced directional capabilities. As such, it is extremely important to select a drill bit that is matched to the specific requirements of the system, thus maximizing directional efficiency. Unfortunately, the ideal design can be hard to identify visually...

... OTC 20250 Low-Frequency Drill Bit Seismic While Drilling Robert P. Radtke, John E. Fontenot, David A. Glowka, and Robert H. Stokes, Technology International, Inc. Copyright 2009, Offshore Technology Conference This paper was prepared for presentation at the 2009 Offshore Technology Conference held...

.... The drilling operations use a heave compensated full-flush rotary system with a rotary power swivel driving API drill pipe and drill collars with a Bottom Hole Assembly (BHA) and an open-ended dragbit. The outer diameter (OD) of the cutting parts of the drill bit is 225 mm. The inner diameter of the drill bit...

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... depth, the drill bit is raised h m the bottom of the borehole, and the piemmeter probe is then lowered through the drill pipe (free-fall) until it rests on a landing ring in the drill bit (see Figure 1). To insert the probe into the virgin soil below the bottom of the borehole, the drill bit is lifted...

... ABSTRACT In this study, it is demonstrated that sonic pulses of sufficient strength and suitable frequencies can be emitted from a borehole energy source concurrently while drilling oil and gas wells and that these pulses can be used to scan or "look ahead" of the drill bit to determine...

... Vertical Seismic Profiling (VSP) has been used over the past decade to provide seismic images near a wellbore and to make time-to-depth calibrations of surface seismic data. A new wellbore seismic technique, the TOMEX® Survey, uses the vibrations produced by a drill bit while drilling...

... ote 5510 interpretation torque field data analysis drill bit drilling operation rotational velocity torque loss curved zone string section torque transmission directional drilling weight transmission rotation speed transmission upstream oil & gas formation effect reduction...