Results 181 to 190 of about 14,166 (227)

Coiled-Tubing Drilling With Specialized PDC Bits

Proceedings of SPE/IADC Drilling Conference, 1994
abstract The ability to effectively use any technology depends on how well it is understood. This condition becomes even more important with emerging technologies, as is Coiled Tubing Drilling (CTD). This paper will define the components of CTD as a "system" (Coiled Tubing Unit-Downhole Motor-Bit), and show that the understanding of the ...
Graham Mensa-Wilmot, R. B. Coolidge
openaire   +1 more source

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
openaire   +1 more source

Advanced Coating to Mitigate PDC Cutter Thermal Degradation in PDC Bit Manufacturing

International Petroleum Technology Conference, 2022
Abstract Polycrystalline Diamond Compact (PDC) cutters on PDC drill bits are the primary cutting elements to shear and scrape the formations during drilling process. In the PDC drill bit manufacturing, PDC cutters are attached onto drill bit with silver-copper-zinc alloys by brazing process.
Jianhui Xu, Guodong David Zhan, Timothy E. Moellendick, Wenhui Jiang   +3 more
openaire   +1 more source

Laboratory Drilling Performance of PDC Bits

SPE Drilling Engineering, 1988
Summary A laboratory study of polycrystalline diamond compact (PDC) bit designs has generated data that give an insight into PDC-bit performance in the field. The tests reviewed in this paper include those for rate of penetration (ROP), torque response, hydraulic energy sensitivity, balling tendency, dull-bit performance, and bit ...
T. M. Warren, W. K. Armagost
openaire   +1 more source

Development of Whirl Resistant PDC Bits

SPE Latin America/Caribbean Petroleum Engineering Conference, 1994
ABSTRACT The destructive effects of the dynamic forces typically induced by bit whirl have beert identified in previous works. The material presented deals with innovative design features recently developed for PDC bits which resist initiation and propagation of bit whirl.
R. I. Clayton, B. S. Ivie
openaire   +2 more sources

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.
openaire   +1 more source

Dynamic Drilling Strategy for PDC Bits

Proceedings of SPE/IADC Drilling Conference, 1987
ABSTRACT A new mechanistic drilling model for PDC bits was presented. The model was fully explicit with physical meanings given for all constants and functions. The response of the drilling model to weight-on-bit and cutters removal and the stability of constants were tested using some field and laboratory data.
A. K. Wojtanowicz, E. Kuru
openaire   +1 more source

Three-Dimensional Modeling of PDC Bits

SPE/IADC Drilling Conference, 1991
ABSTRACT PDC bit modeling has historically incorporated the assumption that cutter forces are constant for a full revolution of the bit. This assumption places considerable limitations on the model's ability to simulate drilling in nonhomogeneous rock and in cases where the bit whirls.
S. M. Behr, T. M. Warren, L. A. Sinor, J. F. Brett   +3 more
openaire   +1 more source

PDC Bit Classification According to Steerability

SPE Drilling & Completion, 2004
SummaryWith the emergence of rotary steerable systems (RSSs), the technical issue concerning bit design for a specific directional application has reappeared. Today, a bit must be specifically designed for use with a particular directional system: rotary bottomhole assembly (BHA), steerable mud motor, or RSS.
Menand, Stephane, Sellami, Hedi, Simon, C.   +2 more
openaire   +1 more source

PDC Bit Steerability Modeling and Testing for Push-the-Bit and Point-the-Bit RSS

IADC/SPE Drilling Conference and Exhibition, 2012
Abstract The footage drilled with rotary steerable systems (RSS) has increased significantly these last few years, due notably to the highly complex wells drilled today. Moreover, high requirements about borehole quality are needed to optimize drilling performances, running completion tools or increase the quality of formation evaluation.
S. Menand, C. Simon, J. Gaombalet, L. Macresy, L. Gerbaud, M. Ben Hamida, Y. Amghar, H. Denoix, B. Cuiller, H. Sinardet   +9 more
openaire   +1 more source