... rotary speed reduction and are associated with lower rate of penetration and therefore limit the drilling efficiency. This paper discusses the suppression of HFTO with a 4.75-inch tool size damper assembly that is placed above the bottom-hole assembly (BHA) and typically below the mud motor...

.... geologist geology drilling fluids and materials database information fusion measurement while drilling drillstring design data mining machine learning modeling artificial lift system engineering drilling conference workflow international drilling conference vibration bha dataset drilling...

... Abstract High frequency torsional oscillation (HFTO) is a major contributing factor to the drilling dynamics-related bottomhole assembly (BHA) failures. These failures are costly because they not only damage the drilling tools but also cause significant nonproductive time (NPT...

... and premature failure of BHA components. Early POOH leads to 24 to 48 hours of non-productive time due to BHA tripping. This puts huge economic risk on such challenging pay zones. This study exhibits detailed analysis of downhole and in-bit sensing data to increase the operational stability window enabling...

...), as was the complementary Computational Fluid Dynamics (CFD) results used to optimize the process (SPE-202441-MS). This paper will cover the most recent learnings and the latest CFD-based design modifications made to the bottom hole assembly (BHA) with the objective to achieve the best possible abandonment plug...

... Abstract This paper examines the progression of drilling performance in the top sections of offshore wells within the Arab Gulf region. Emphasis is placed on the evolution of well trajectory design, drill bit selection, directional bottomhole assembly (BHA) configurations, mud systems...

... characterization reservoir geomechanics drilling fluid chemistry cutter wob strength igneous rock real time system granite drilling fluid formulation directional drilling drilling fluid property bit selection geological subdiscipline lateral vibration workflow dilatant bha dysfunction...

... simulation anomaly geology neural network drilling fluid management & disposal machine learning application wellbore integrity data mining hybridization bha cuttings transition international drilling conference representation autoencoder predictor drilling incident detection exhibition...

... To study the effect of the effective length on different types of computations, a selection of different BHAs is chosen ( Fig. 2 ). The first three are equipped with a steerable mud motor, but with different hole diameters and different stabilizations. The fourth and fifth BHAs are equipped...

... to unwanted effects. The Bottom Hole Assembly (BHA) can be deflected before the steering unit with its steering pads can counteract the deflection. This can lead to deviations from the directional plan and High Local Doglegs (HLD) when drilling in the horizontal/lateral section, which can have a negative...

... intelligence reservoir characterization drilling fluid formulation review claystone group procedure stability fluid loss control drilling fluid property operation drilling fluid selection and formulation knowledge management operational procedure illustration flowrate alemon bha action review...

... High-Frequency Drilling Dynamics Data Recorders and BHA Placement The intermediate sections were drilled through rock types that are renowned for drilling dynamics dysfunction that leads to premature bit wear, rapid degradation of mud motor power section and damages to RSS and MWD...

... have worked directly with internal end users to ensure that our approach and the user interface satisfy the needs of today's decision makers. We redid and improved the first solution to include the motor power section, BHA, RSS, and drilling fluid recommendations. The ML tool has the potential to add...

... networks as base models and validated using downhole data. Physics based models in the advisory system are used to compute the first five modes of natural frequencies for axial, torsional and lateral vibration. The contextual data required for the calculations consists of the bottom hole assembly (BHA...

... government hfto frequency assembly iadc spe international drilling conference drilling dysfunction rotary assembly bit selection amplitude wob type 2 bha drillstring design dysfunction international drilling conference type 1 paper europe government uae government drilling conference...

... efficiency drilling equipment geothermal drilling reduction upstream oil & gas mensa-wilmot characterization modification europe government implication footage durability ctf consideration characteristic roadmap bha Background Drilling environments and formation drillability...

... requirement implementation point-the-bit rss exhibition upstream oil & gas europe government azimuth downhole trajectory automation firmware implementation bha Introduction Traditionally, RSS tools are steered by experienced directional drillers who vary drilling parameters as well...

... in conventional motor BHA's), it is hard to hold inclination and azimuth due to several factors, such as formation push, BHA design, personnel, etc. Besides the mentioned factors, having the inclination and azimuth measurements far from the bit make it difficult to evaluate a sudden change in trajectory while...

... of the collar material. For a typical collar, this velocity is about 10,200 ft/s. By example, for a typical BHA with a resonant frequency of 200 Hz, the estimated wavelength is about 51 ft. Significant variation in the HFTO characteristics along the BHA can be expected with nodes and antinodes spatially...

... centralization and stiffness of the string and BHA relative to 5" DP. The goal was to reduce the annular space between the pipe and the wellbore to constrain the system's potential to waste energy in lateral vibrations and buckling, both of which are dysfunctions of the system's intended function. The 19.8...