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Keywords: BHA
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Proceedings Papers

Paper presented at the IADC/SPE International Drilling Conference and Exhibition, March 8–10, 2022
Paper Number: SPE-208739-MS
... has been developed that shows promise in limiting the HFTO response in the BHA, if not removing it entirely. This new mitigation component is integrated directly into a Rotary-Steerable System. As a result, there are no requirements for additional tooling, connections, or special handling to mitigate...
Proceedings Papers

Paper presented at the IADC/SPE International Drilling Conference and Exhibition, March 8–10, 2022
Paper Number: SPE-208720-MS
... in the lower bottomhole assembly (BHA). Typically, this vibration has a higher frequency, than the Type 1, and is independent of the tools in the upper BHA. The characteristics of this are determined by the contact points; thus, it is dominant in the curved section or where heterogeneities trigger microdoglegs...
Proceedings Papers

Paper presented at the IADC/SPE International Drilling Conference and Exhibition, March 8–10, 2022
Paper Number: SPE-208684-MS
...Standardization and Saved Trips The BHA's, Table 2 were optimized to have a standard configuration allowing drilling of the vertical, curve and lateral with the same Compound Angle Motor. The total trips drilled by this technology in the west wells reduced the number of trips by 30...
Proceedings Papers

Paper presented at the IADC/SPE International Drilling Conference and Exhibition, March 8–10, 2022
Paper Number: SPE-208710-MS
... lateral rotation sensor data mining directional drilling backward rotation bha amplitude surface parameter motor back-drive spectrum iadc spe-208710-m vibration Current State The operator has been drilling wells in the Bakken formation in North Dakota since 1951 with a proven track...
Proceedings Papers

Paper presented at the IADC/SPE International Drilling Conference and Exhibition, March 8–10, 2022
Paper Number: SPE-208744-MS
... testing at different scale. This process is presented in the paper. The placement of the damper elements within the drilling system has been identified as a critical task to effectively dampen the critical modes related to HFTO. The simulated results for the BHA that is deployed in the field...
Proceedings Papers

Paper presented at the SPE/IADC International Drilling Conference and Exhibition, March 8–12, 2021
Paper Number: SPE-204049-MS
... with all parties is required to manage collision risk, minimise production loss, and ensure all well objectives are achieved. The execution strategy includes simple jetting and rotating BHA designs for 3D-profile trajectories, remote real-time monitoring including 24/7 survey QA/QC and validation...
Proceedings Papers

Paper presented at the SPE/IADC International Drilling Conference and Exhibition, March 8–12, 2021
Paper Number: SPE-204029-MS
... technology has become a building block towards drilling automation, by using actual measurements from both BHA and ASM tools. As such, it is part of the Operator's digital initiative. WDP System Reliability Abstract Over the last few years, multiple wells have been drilled in the Norwegian...
Proceedings Papers

Paper presented at the SPE/IADC International Drilling Conference and Exhibition, March 8–12, 2021
Paper Number: SPE-204134-MS
... operational practices and drilling tools. The sidetrack was re-planned with a mud motor BHA in a ‘tight collision risk’ situation to secure a safe drilling tunnel and avoid hitting the casing stump ( Fig. 4 ). The original plan with 50-m window would have provided a smoother well path with lower shallow...
Proceedings Papers

Paper presented at the SPE/IADC International Drilling Conference and Exhibition, March 8–12, 2021
Paper Number: SPE-204099-MS
... in horizontal lateral sections. The number of mud motor runs per well ranged from 1 to 4, and the total depths of the lateral section ranged from 4,000 to 10,000 ft measured depth (MD). The time-series data used in the study was acquired at a 1 Hz frequency. The dataset contained a mix of BHAs with various...
Proceedings Papers

Paper presented at the SPE/IADC International Drilling Conference and Exhibition, March 8–12, 2021
Paper Number: SPE-204100-MS
... field associated to Multi Station Correction. For vertical repositioning, BHA sag correction was applied with scrutinous assessment of residual sag uncertainty and detailed analysis of continuous survey data. This robust, cost-effective, and valuable solution was chosen to be applied by the operator...
Proceedings Papers

Paper presented at the SPE/IADC International Drilling Conference and Exhibition, March 8–12, 2021
Paper Number: SPE-204129-MS
... Abstract Appropriate selection of a bottom-hole assembly (BHA) is critical to the success of a drilling operation. In US Land drilling, these assemblies are often selected using local heuristics rather than rigorous analysis. These heuristics are frequently derived from the incentives...
Proceedings Papers

Paper presented at the IADC/SPE International Drilling Conference and Exhibition, March 3–5, 2020
Paper Number: SPE-199604-MS
... developed and optimized for the transmission characteristics of the system. The downhole transceiver interfaces with the BHA tools and regulates power delivery from the powered drill string. Along string transceivers may interface to measurement subs at selected points in the drillpipe. The surface system...
Proceedings Papers

Paper presented at the IADC/SPE International Drilling Conference and Exhibition, March 3–5, 2020
Paper Number: SPE-199680-MS
... the HFTO phenomenon that causes high tangential accelerations and torsional loads within the bottomhole assembly (BHA) during drilling in critical formations. HFTO modeling that is validated with high-speed measurements helps to identify tangential accelerations and torsional loads across the BHA...
Proceedings Papers

Paper presented at the IADC/SPE International Drilling Conference and Exhibition, March 3–5, 2020
Paper Number: SPE-199631-MS
... In addition to reamer durability improvements ( Mensa-Wilmot, et al 2015 ), industry efforts have also focused on bit and reamer matching ( Barton, et. al 2010 ), as well as BHA design (Meyer-Hehe, et al 2010). These considerations have no definitions or guidelines in the industry, leading to dissimilar...
Proceedings Papers

Paper presented at the IADC/SPE International Drilling Conference and Exhibition, March 3–5, 2020
Paper Number: SPE-199617-MS
... Abstract A methodology to optimize bottomhole assembly (BHA) designs to deliver improvements in wellbore quality has been developed. BHA modeling accurately simulates the drilling process and is combined with measurements of the wellbore to establish selected drilling key performance indicators...
Proceedings Papers

Paper presented at the IADC/SPE International Drilling Conference and Exhibition, March 3–5, 2020
Paper Number: SPE-199658-MS
... Abstract High-torque, slow-speed drilling mud motors are typically used to drive rotary-steerable systems (RSS) to improve the rate of penetration (ROP) of the RSS bottom-hole assemblies (BHA). Downhole drilling dysfunctions are common when powered RSS BHAs are pushed to the limit for maximum...
Proceedings Papers

Paper presented at the IADC/SPE International Drilling Conference and Exhibition, March 3–5, 2020
Paper Number: SPE-199634-MS
..., the phenomenon of drill string torsional oscillation at frequencies over 50 Hz has been well documented. This high frequency torsional oscillation (HFTO) creates cyclic fatigue loading on bits and drilling tools within the bottom hole assembly (BHA) and thus limits tool life and drilling performance. However...
Proceedings Papers

Paper presented at the IADC/SPE International Drilling Conference and Exhibition, March 3–5, 2020
Paper Number: SPE-199549-MS
... system completion manifold deployment rig BHA installation operation subsequent well crane simultaneous operation Drill Center procedure offline drilling operation tophole active heave Wellhead completion installation and operations bop drillstring design rig simultaneous operation...
Proceedings Papers

Paper presented at the SPE/IADC International Drilling Conference and Exhibition, March 5–7, 2019
Paper Number: SPE-194093-MS
... Abstract High-frequency real-time drilling data from wired drill pipe has provided new insights on bottomhole assembly (BHA) dynamics in the New Mexico Delaware Basin. An enhanced understanding of downhole dynamics, formation characteristics, and their impact on bit and tool life has enabled...
Proceedings Papers

Paper presented at the SPE/IADC International Drilling Conference and Exhibition, March 5–7, 2019
Paper Number: SPE-194072-MS
... Abstract New insights into torsional BHA dynamics have been gained from high-frequency at-bit measurements when drilling with steerable mud motors in horizontal wells. Steerable mud motors are traditionally thought to decouple the bit from "sticking" as the BHA and drillstring are subject...

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