Results 181 to 190 of about 14,048 (222)

Influence of bit-rock interaction on stick-slip vibrations of PDC bits

Proceedings of SPE Annual Technical Conference and Exhibition, 2002
Abstract This paper describes a new approach to understand the causes of stick-slip vibrations experienced by PDC bits. This new model takes into consideration not only the axial and torsional modes of vibration, but also the coupling between these two modes through bit-rock interaction laws, which are consistent with laboratory results ...
T. Richard, E. Detournay, M. Fear, B. Miller, R. Clayton, O. Matthews   +5 more
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PDC Bits Using Positive Rake Cutters

IADC/SPE Drilling Conference, 1990
ABSTRACT A radical new concept in bit technology has been developed for use in drilling the deep water shales of the Gulf of Mexico and the Mississippi Delta where both milltooth and conventional PDC bits have performed poorly. This new tool utilizes the following technical elements: Large diameter positive rake PDC cutters as the ...
openaire   +1 more source

PDC-Bit Performance Under Simulated Borehole Conditions

SPE Drilling & Completion, 1993
SummaryLaboratory drilling tests were used to investigate the effects of pressure on polycrystalline-diamond-compact (PDC) drill-bit performance. Catoosa shale core samples were drilled with PDC and roller-cone bits at up to 1, 750-psi confining pressure. All tests were conducted in a controlled environment with a full-scale laboratory drilling system.
E. E. Andersen, J. J. Azar
openaire   +1 more source

PDC-Bit Performance in Deep Shales

Journal of Petroleum Technology, 1998
This article is a synopsis of paper SPE 47814 "Addressing the Problem of PDC Bit Performance in Deep Shales," by J.R. Smith, SPE, Louisiana State U., originally presented at the 1998 IADC/SPE Asia Pacific Drilling Technology, Jakarta, 7-9 September.
openaire   +1 more source

PDC Bits Find Applications in Oklahoma Drilling

IADC/SPE Drilling Conference, 1983
Abstract Drilling in Oklahoma is difficult by any standards. PDC bits, with proven success drilling soft, homogenous formations common in the North Sea and U.S. Gulf Coast regions, have found some significant "spot" applications in Oklahoma.
L. A. Offenbacher, J. D. McDermaid, C. R. Patterson   +2 more
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DRILLING HARD AND ABRASIVE FORMATIONS WITH PDC BITS

Proceedings of SPE Latin America Petroleum Engineering Conference, 1992
Abstract Due to the success obtained by PDC bits drilling unconsolidated formations of Miocene age several designs have been tested in an attempt to extend the PDC bit application range to the harder an more abrasive formations of Ceuta field, in western Venezuela.
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Performance improvement of PDC and PDC bits by cryogenic treatment

Geoenergy Science and Engineering, 2023
Jianbo Tu, Xueqi Wang, Wenhao Dai, Haibo Zhang, Baochang Liu   +4 more
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Hydrodynamic analysis of the PDC drill bits

2019
Authors have estimated geometrical characteristics of stabilizing constructions of the cutting – shearing type drill bits. Multiple experiments regarding optimal hydraulic construction of the drill bits’ shafts for most effective water filtering ability were made, with calculations and equations being present. The usage of the offered construction will
A.Ya. Tretyak, K.A. Borisov, S.A. Getmanchenko   +2 more
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PDC drill bit with rotating cutters

Construction of Oil and Gas Wells on Land and Sea, 2022
R.M. Bogomolov, G.S. Mozgovoy
openaire   +1 more source

A Bit-Based Data-Acquisition System for Hard-Rock PDC Bits

Journal of Petroleum Technology, 2007
This article, written by Assistant Technology Editor Karen Bybee, contains highlights of paper SPE 105017, "Development and Utilization of a Bit-Based Data- Acquisition System in Hard-Rock PDC Applications," by Paul Pastusek, SPE, Eric Sullivan, and Tommy Harris, SPE, Hughes Christensen Co., prepared for the 2007 SPE/IADC Drilling Conference, Amsterdam,
openaire   +1 more source