... have applied these techniques to drill bits. The result is an application that creates a three-dimensional reconstructed model of a bit. This creates an avatar of the drilling bit that can be used for many purposes including equipment tracking and data extraction. Results from the three-dimensional...

... and vibration, low rates of penetration (ROP), and premature drill-bit cutting structure damage. Today, industry efforts to improve the performance in the Brazilian presalt carbonates are driven by trial and error, which is very costly in the ultradeepwater drilling environment. The adoption of a collaborative...

... Damage: Causes and Recognition Appendix F – BHA Damage: Causes and Recognition This document is structured as follows: There are currently emerging technologies leveraging high quality image analysis coupled with artificial intelligence to support the damage assessment of drill bits...

... be significantly reduced by implementing high-precision drill-bit localization using passive seismic data. Consequently, not only drilling risks can be reduced, but optimal reservoir drainage is ensured as well. By utilizing passive seismic recordings from the seafloor, we can "listen" to the noise generated...

... Abstract We monitor the seismic signal emitted from a rotating drill bit in real time with an array of seismic sensors at the seafloor. Drill-bit seismic signals provide information to locate the drill-bit position itself and to image geological objects ahead and around the drill bit...

...Downhole Instrumentation Drilling dynamics sensors placed at the drill bit (below mud motor power section) and at mud motor top sub (above mud motor power section) provide two completely different points for capturing drilling dynamics information ( Jones et al 2017 ). The response of drilling...

... of rock interact with the drill bit element. Before testing each element, the surface of the rock was dressed with a PDC cutter to provide a smooth initial working surface. Each test was conducted by first setting the turret rev/min to the desired test speed; then, the test element was traversed...

... is proposed. As shown in Fig. 1 the model comprises a finite number of rigid bodies discretizing the continuous drillstring. In this formulation, the model has two DOFs (Degree of Freedoms) only, axial and rotational, which are coupled through the bit-rock interaction. To be more specific, the drill bit...

... to withstand vibrations, water intrusion, magnetic interference, and electromagnetic noise are common difficulties faced by major equipment manufacturers. drilling operation drilling process drill bit Artificial Intelligence trajectory design drill pipe diameter Directional Drilling drilling...

... oscillation of the drillstring. we aim for an improved understanding of the causes for torsional vibrations in RSS and torsional vibrations with and without stick-slip are observed. We show that the RSS implementing agencies pushing the borehole wall caused the drill bit torsional vibration more serious...

... the pilot bit to address formation evaluation and other operational constraints. This distance between a drill bit and the concentric reamer poses bit–reamer synchronization challenges, especially while drilling interbedded formations, where the bit could drill a softer formation while the reamer is placed...

... (with an 8 ½-in PDC drill bit), one near the bit and another 107ft above the bit. The sensors sampled three-axis accelerometers at 800Hz. They reported high-magnitude (up to 10000 rad / s 2 ) 66Hz HFTO mainly in Shilaif formations (carbonate formations). An RSS BHA (about 100ft) was also tested in the lab...

...Bit-rock interactions based on boolean operations All geometric interactions between the drill bit and the rock are computed based on boolean operations between 3D models. It applies to both the process of rock removal by bit cutting parts and the estimation of the geometry of contact between...

... ⁡ ε k 2 (15) F S k = f s   ( E C C k ,   R O P k ,   R S k ,   S T I 1 ,   S T I 2 ,   L 1 ,   L 2 ,   A ,   … ) Where L 1 is the tool length between the drill bit...

..., testing and field deployment of a drilling system comprised of drill bits, positive displacement motors and drilling fluids capable of drilling at operating temperatures up to 300°C. It also describes the development and testing of a 300°C capable measurement-while-drilling platform. The development...

... ¼ in. section in the Ahnet field was the necessary choice as the operator always struggled to drill this section. The challenges encountered in the offset wells included: multiple drill bit runs, abnormal drill bit wear, short intervals drilled, and low ROP. The objective of the run reference was to confirm...

... Abstract Major performance challenges for deepwater applications from a drill bit standpoint were identified as (1) High surface torque in salt is one of the major ROP limiters. (2) Inability to control depth of cut in soft rocks including shale and salt and when drilling in interbedded...

... Abstract Rotary shouldered connections (RSCs) for polycrystalline diamond compact (PDC) drill bits have been unchanged since PDC bits were introduced in the late 1970s. These specifications were carried over from roller cone (RC) bits, which require significantly less torque to fail rock than...

...PDC Cutter Optimization There are three main areas of focus to optimize drill bit performance. These include: PDC cutter design – cutter durability Drill bit design BHA design and application run parameters All of these are related when optimizing performance, for example...

.... This new technology increased ROP by more than 52% and interval drilled by over 100% through these intervals. bit selection durability drill bit frequency positive displacement motor application compressive strength bit design Mauritania ROP drilling system hybrid bit fpph tool power...