Improved Drilling Operations with Wired Drill Pipe and Along-String Measurements – Learnings and Highlights from Multiple North Sea Deployments

2021 ◽  
Author(s):  
Børge Engdal Nygård ◽  
Espen Andreassen ◽  
Jørn Andre Carlsen ◽  
Gunn Åshild Ulfsnes ◽  
Steinar Øksenvåg ◽  
...  
Keyword(s):  
Continental Shelf ◽  
Real Time ◽  
High Speed ◽  
Drill Pipe ◽  
Large Data ◽  
Drill String ◽  
Bottom Hole Assembly ◽  
Drilling Operations ◽  
Downhole Measurements ◽  
Remote Operations

Abstract Over the last few years, multiple wells have been drilled in the Norwegian Continental Shelf (NCS) and the United Kingdom Continental Shelf (UKCS) using wired drill pipe (WDP). This paper captures highlights from using real-time downhole measurements provided by WDP, for improved drilling operations. It presents learnings on how WDP measurements have been used in the operator's decision process. As part of WDP, along-string measurement subs (ASM) are equipped with temperature, annular/internal pressure, rotation and vibrations sensors. Data is transmitted to surface at high speed and is available in real-time, even when flow is off. The data provide great insight into the hole conditions along the drill string and at the bottom hole assembly (BHA). Based on this insight, drilling parameters at surface can be accurately adjusted, resulting in increased overall efficiency. Large data amounts can be communicated to and from surface with negligible time delay and independent from fluid circulation. Displaying the downhole measurements in real-time, both at the rig site and in remote operations centers has proven essential when optimising well construction activities. All parties need to access the same information in real-time. Moreover, the data need to be presented in an intuitive manner that enable improved operational decisions. To maximize WDP values, the Operator has learned that downhole data must be used to adjust drilling operations in real-time.

High Speed Drill String Telemetry Network Enables New Real Time Drilling and Measurement Technologies

2006 ◽  
Author(s):  
Michael Reeves ◽  
John Duncan MacPherson ◽  
Ralf Zaeper ◽  
David R. Bert ◽  
Jerry Shursen ◽  
...  
Keyword(s):  
Real Time ◽  
High Speed ◽  
Drill String

Real-Time Prediction of Mud Motor Failure Using Surface Sensor Data Features and Trends

2021 ◽  
Author(s):  
Tesleem Lawal ◽  
Pradeepkumar Ashok ◽  
Eric van Oort ◽  
Dandan Zheng ◽  
Matthew Isbell
Keyword(s):  
Real Time ◽  
Cost Optimization ◽  
Damage Index ◽  
Sensor Data ◽  
Drilling Parameters ◽  
Wear And Tear ◽  
Drilling Operations ◽  
Downhole Measurements ◽  
The Impact ◽  
Motor Failure

AbstractMud motor failure is a significant contributor to non-productive time in lower-cost land drilling operations, e.g. in North America. Typically, motor failure prevention methodologies range from re-designing or performing sophisticated analytical modeling of the motor power section, to modeling motor performance using high-frequency downhole measurements. In this paper, we present data analytics methods to detect and predict motor failures ahead of time using primarily surface drilling measurements.We studied critical drilling and non-drilling events as applicable to motor failure. The impacts of mud motor stalls and drill-off times were investigated during on-bottom drilling. For the off-bottom analysis, the impact of variations in connection practices (pick up practices, time spent backreaming, and time spent exposing the tools to damaging vibrations) was investigated. The relative importance of the various features found to be relevant was calculated and incorporated into a real-time mud motor damage index.A historical drilling dataset, consisting of surface data collected from 45 motor runs in lateral hole sections of unconventional shale wells drilled in early to mid-2019, was used in this study. These motor runs contained a mix of failure and non-failure cases. The model was found to accurately predict motor failure due to motor wear and tear. Generally, the higher the magnitude of the impact stalls experienced by the mud motor, the greater the probability of eventual failure. Variations in connection practices were found not to be a major wear-and-tear factor. However, it was found that connection practices varied significantly and were often driller-dependent.The overall result shows that simple surface drilling parameters can be used to predict mud motor failure. Hence, the value derived from surface sensor information for mud motor management can be maximized without the need to run more costly downhole sensors. In addition to this cost optimization, drillers can now monitor motor degradation in real-time using the new mud motor index described here.

Intelligent Pressure Control System for MPD

2021 ◽  
Author(s):  
Zhao Hui Song ◽  
Fu Qiang Li ◽  
Deng Pan Xie ◽  
John Zhu ◽  
Liam Zeng ◽  
...  
Keyword(s):  
Control System ◽  
Real Time ◽  
Pressure Control ◽  
Full Time ◽  
Time Data ◽  
Drilling Operation ◽  
Pressure Control System ◽  
Bottom Hole Assembly ◽  
Drilling Operations ◽  
Compact Design

Abstract MPD (Managed Pressure Drilling) is an important technique for challenging drilling operations especially in narrow operational windows. This paper is to introduce the IPC (Intelligent Pressure Control) system with super compact footprint, unique algorithm and IoT (Internet of Things) feature which bring operator a fresh understanding of MPD operation. IPC system is equipped with the ultra-compact MPD manifold (L11.75ft × W7.50ft × H9.08ft) with complete functionality of measurement & automatic control, benefit the operators on footprint reducing for limited field space. With the unique algorithm integrated in iPWD (Intellegent Pressure While Drilling) module, the real time downhole pressure data could be generated without any downhole PWD (Pressure While Drilling) sensor, the deviation between iPWD data and real PWD data is within 3%, which was proven in field operations. NEBULA system is an add-on feature for IPC system, using cloud and IoT technologies, it could track the equipment’s specific location, working status and parameters, providing statistical diagnosis based on data collected from field operations, which helps operators to make decisions quickly. The data uploaded to cloud could generate different reports based on end user’s requirements to analyze drilling operation challenges or difficulties. You can receive all data provided by NEBULA system on your cellphone and PC (Personal Computer) at any time anywhere. The compact design of IPC system manifold benefit the operator by minimizing the footprint in limited field space especially for offshore operations; iPWD module provides full time data during drilling operation regardless of connection or any pump off scenarios; also erases the need of PWD sensor on BHA(Bottom Hole Assembly). NEBULA system featured on IPC equipment generates different report based on real-time data received on site after cloud calculation and big data analysis, all data and report could be accessed via cellphone or PC at any time anywhere, which can be an upgraded intelligent features on conventional MPD technology.

Nonlinear Model for Dynamic Behavior of Drill-String

2002 ◽  
Author(s):  
Hayat Melakhessou ◽  
Alain Berlioz ◽  
Guy Ferraris
Keyword(s):  
Dynamic Behavior ◽  
Degrees Of Freedom ◽  
Initial Position ◽  
Drill String ◽  
Lagrange Equations ◽  
Bottom Hole Assembly ◽  
Drilling Operations ◽  
Set Up ◽  
Mean Time ◽  
Drill Collar

This article is devoted to the study of the contact between the drill-string and the well during drilling operations. The study focuses on the Bottom-Hole-Assembly (BHA), which is submitted to compression. The work is motivated by the need to understand the complex behavior of such a system, in order to improve control their constructive and destructive potentials. The contact, which is supposed to be localized on the drill-collar or stabilizers, is prejudicial and involves a premature abrasive wear of the drill-string, reduction of the rate of penetration of the tool into the rock (ROP) and reduction of the mean time between failure (MTBF). The proposed mathematical model is expressed in terms of four independent degrees of freedom. They include the effects of bending and torsion; the whirling motion of the drill-string as well as the phenomena of friction between the drill-string and the well. The tangential effect is modeled by using Coulomb’s law of friction. The nonlinear equations of the movement are derived using Lagrange equations and are solved numerically to obtain the response. Specific attention is paid to the study of friction and a consistent contact model which is capable of taking into account the rolling of the drill-string, both with and without slip, is included in the model. This paper also presents a parametric study on the influence of the initial position of the string and the friction coefficient of the contact on the dynamic behavior of the structure. An experimental set-up, equipped with two optolineic devices, is used to validate the model.

Mitigating Twist-Offs While Drilling with the Help of BHA Dynamics Software

2021 ◽  
Author(s):  
Mario A. Rivas ◽  
Andres A. Ramirez ◽  
Bader S. Al-Zahrani ◽  
Khaled K. Abouelnaaj
Keyword(s):  
Oil And Gas ◽  
Drill Pipe ◽  
Oil And Gas Industry ◽  
Parameters Optimization ◽  
Gas Industry ◽  
Drilling Parameters ◽  
Resonance Vibrations ◽  
Bottom Hole Assembly ◽  
Drilling Operations ◽  
Safe Operating

Abstract One of the major challenges the Oil and Gas Industry faces nowadays during drilling operations is the twist-offs on Bottom Hole Assembly (BHA) components such as Drilling Jars, Shock Tools, Mud Motors, Roller Reamers, Stabilizers, Drill Collars, PBLs, Heavy Weight Drill Pipe (HWDP), Drill Pipe (DP), etc. To overcome this challenge, an initiative was proposed by performing a study based on twist-offs experienced on BHA components while drilling operations and recommendations are provided to reduce and eliminate twist-offs related to drilling with suboptimal drilling parameters. The statistical data for the twist-off events was collected coming from Daily Drilling Reports, and the analysis was limited to all wells which presented twist-offs on the drillstring and BHA components. Three examples of twist-offs due to drilling with erratic torque are discussed as well as a successful example of drilling parameters optimization. The three examples which presented drillstring and BHA twist-offs were analyzed using available BHA Dynamics and vibrations software and it was discovered that the parameters utilized (operational RPM) fell within the critical zone shearing force peaks (resonance vibrations). The components with the most twist-offs were identified. The hole size where we have the most twist-offs were also identified, which will help in focusing on these areas for the recommendations provided. This analysis will help Drilling Engineers and Foremen to foresee vibration dysfunctions and act accordingly by the use of available BHA Dynamics software in order to optimize drilling parameters before and during drilling. By drilling within a safe operating RPM window (away from resonant RPM), there will be reduction in the number of twist-offs and associated lost time.

Fit for Purpose Connection Design for Drilling Operations in Size Constrained Tubular

2021 ◽  
Author(s):  
Guillaume Plessis ◽  
Andrei Muradov ◽  
Richard Griffin ◽  
Jeremy Dugas ◽  
Justin Orlando ◽  
...  
Keyword(s):  
Drill Pipe ◽  
Drill String ◽  
Internal Diameter ◽  
Engineering Technology ◽  
Technology Center ◽  
Drilling Operations ◽  
Fit For Purpose ◽  
The One ◽  
Connection Design ◽  
Outside Diameter

Abstract Drilling out or working within small sizes of casing and liners requires the use of a drill string with small outside diameter tool joints to fit inside the casing/liner bore and, at the same time, a large enough connection internal diameter to pump actuating balls inside the drill string when needed. These requirements significantly limit the available options that can be used. Historically, a drill pipe double shoulder connection with a 3⅛-in. outside diameter (OD) has been used for such operations, as it allows for multiple makeups and breakouts before it needs to be repaired. This is a great improvement compared to using small tubing premium connections that are somewhat limited on the number of makeups. However, the geometry constraints are such that the thin material envelope leads to torsional weakness in the connection, resulting in a higher than expected recut rate as connections can be overtorqued downhole in operation. A research and development (R&D) project was commissioned to improve the connection performance significantly to mitigate the downhole overtorque. Exploring the acceptable connection envelope limits allowed for a slightly reduced internal diameter (ID) when compared to the previously used connection. The team considered different thread designs and decided to use the one that would provide the highest torque. The design process was then followed to develop and qualify a well-balanced connection. The design validation was performed at an engineering technology center in Houston, Texas, where samples were destructively tested to compare the actual capacity of the new connection against the calculated values. It was confirmed that the torsional strength of the new design meets and exceeds the theoretical value, an improvement of at least 85% over the previously used connection, and a first string was built. It was subsequently deployed in the field and the recut rate was monitored to establish that the objective of delivering a connection capable of higher torque was indeed met to resist the downhole overtorque.

Large Data Stream Processing - Embedded Systems Design Challenges

2010 ◽  
Vol 56 (2) ◽  
pp. 107-110 ◽  
Author(s):  
Adam Handzlik ◽  
Andrzej Jabłonski
Keyword(s):  
Embedded Systems ◽  
Real Time ◽  
Data Stream ◽  
High Speed ◽  
Stream Processing ◽  
Systems Design ◽  
Large Data ◽  
Data Stream Processing ◽  
Huge Data ◽  
Design Challenges

Large Data Stream Processing - Embedded Systems Design Challenges The following paper describes an application of reconfigurable hardware architectures for processing of huge data streams. Radar, sonar and high speed internet networks are typical sources of data that require extreme computing power and resources to enable real time acquisition, processing and management. An approach to monitoring of real time multi-gigabit internet network has been described as a practical application of FPGA based board, designed for fast data processing.

Seismic-while-drilling applications from the first DrillCAM trial with wireless geophones and instrumented top drive

2020 ◽  
Vol 39 (6) ◽  
pp. 422-429
Author(s):  
Andrey Bakulin ◽  
Ali Aldawood ◽  
Ilya Silvestrov ◽  
Emad Hemyari ◽  
Flavio Poletto
Keyword(s):  
Real Time ◽  
Polycrystalline Diamond ◽  
Drill String ◽  
Sensor Data ◽  
Continuous Data ◽  
Near Surface ◽  
Initial Application ◽  
Look Ahead ◽  
Drilling Operations ◽  
Single Sensor

Advanced geophysical sensing while drilling is being driven by trends to automate and optimize drilling and the desire to better characterize complex near surface and overburden in desert environments. We introduce the DrillCAM system, which combines a set of geophysical techniques from seismic while drilling (SWD), drill-string vibration health, estimation of formation properties at the bit, and imaging ahead of and around the bit. We present data acquisition, processing, and initial application results from the first field trial on an onshore well in a desert environment. In this study, we focus on SWD applications. For the first time, wireless geophones installed around a rig were used to acquire continuous data while drilling. We demonstrate the feasibility of such a system to provide flexible acquisition geometries that are easily expandable with increasing bit depth without interference from drilling operations. Using a top-drive sensor as a pilot, we transform the drill-bit noise into meaningful and reliable seismic signals. The data were used to retrieve a check shot while drilling, make kinematic look-ahead predictions, and obtain a vertical seismic profiling corridor stack matching surface seismic. Robust near-offset check-shot signals were received from roller-cone and polycrystalline diamond compact (PDC) bits above 7200 ft after limited preprocessing of challenging single-sensor data with supergrouping. Detecting signals from deeper sections drilled with PDC bits may require more advanced processing by using an entire 2D spread of wireless geophones and downhole pilots. The real-time capabilities of the system make the data available for continuous data processing and interpretation that will facilitate drilling automation and improve real-time decision making.

The Weld Image Acquisition and Preprocessing Based on FPGA

2013 ◽  
Vol 401-403 ◽  
pp. 1507-1513 ◽  
Author(s):  
Zhong Hu Yuan ◽  
Wen Tao Liu ◽  
Xiao Wei Han
Keyword(s):  
Image Processing ◽  
Real Time ◽  
High Speed ◽  
High Performance ◽  
Image Acquisition ◽  
Processing System ◽  
Large Data ◽  
Seam Tracking ◽  
Image Processing System ◽  
Time Requirements

In the weld image acquisition system, real-time image processing has been a difficult design bottleneck to break through, especially for the occasion of large data processing capability and more demanding real-time requirements, in which the traditional MCU can not adapt, so using high-performance FPGA as the core of the high speed image acquisition and processing card, better meets the large amount of data in most of the image processing system and high demanding real-time requirements. At the same time, system data collection, storage and display were implemented by using Verilog, and in order to reducing the influence of edge detection noise, the combination of image enhancement and median filtering image preprocessing algorithm was used. Compared to the pre-processing algorithm of the software implementation, it has a great speed advantage, and simplifies the subsequent processing work load, improves the speed and efficiency of the entire image processing system greatly. So it proves that the system has strong ability of restraining the noise of image, and more accurate extracted edge positioning, it can be applied in the seam tracking field which need higher real-time requirements.

Fast and Reliable Underwater Communication: Successful Applications of Biologically Inspired Techniques

2006 ◽  
Author(s):  
Rudolf Bannasch ◽  
Konstantin Kebkal ◽  
Sergey Yakovlev ◽  
Alexej Kebkal
Keyword(s):  
High Speed ◽  
Data Transfer ◽  
New Technology ◽  
Drill Pipe ◽  
Warning System ◽  
Large Data ◽  
Ocean Bottom ◽  
Tsunami Warning System ◽  
Side Scan Sonar ◽  
Wide Range

The capability of the Sweep Spread Carrier (S2C) technology to overcome even the most crucial problems occurring in noisy ultra-shallow water channels could be shown in a wide range of technical applications. A milestone was the first real time transmission of side-scan sonar data while sea-floor mapping carried out by the AUV HUGIN 1000 running several hundred meters in front of the supply ship at a depth of 100–200 m (water depth ca. 400 m). Data speed was between 20 and 33 kBit/s in this trial. Based on this experience a new protocol providing two communication layers has been developed which allows to interpose high priority messages into an ongoing data stream when ever appropriate. So the S2C modems can be used for the transmission of large data files (measurements, digital images etc.) while serving as a fast and reliable control or command link, simultaneously. Current developments include integrated communication, tracking and positioning (combination with an USBL module) and enhanced networking capability. Various models ranging from high-speed S2C modems for short distance application (up to 72 kBit/s over several hundred metres) to efficient long-range modems became available. One of our latest models, the S2C M 7/17, is currently tested in the German Tsunami warning system in the Indian Ocean. The two directional acoustic link between the ocean bottom unit (OBU in 5000–6000 m depth) and the satellite buoy at the surface will be fast enough to transmit not only pressure data but also the records of 4 high-resolution seismic channels including the pre-history of a given Tsunami event. Via satellite scientists have permanent access to the OBU and can thus analyse any event of interest. This new technology opens many possibilities also for applications in Offshore Mechanics and Arctic engineering. Worthwhile to be mentioned, just the other day also the acoustic data transfer via the mud inside of a drill pipe was managed by using the S2C technique.

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