A New Mud Pulse Telemetry System Reduces Risks When Drilling Complex Extended Reach Wells

Klotz, Christian; Kaniappan, Aravindh; Thorsen, Arve K.; Nathan, Eugene; Jahangir, M. M. R.; Lie, Livar

doi:10.2118/115203-ms

Cited by 9 publications

(5 citation statements)

References 9 publications

(6 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Initial novel research on continuous mud pulse telemetry waves attained the maximum data transmission of more than 10 bps (Hutin et al 2001). In 2008, new system was tested which managed to achieve data rates of up to 20 bps and a minimum of 5 bps in weakly deteriorated channel conditions (Klotz et al 2008b).…”

Section: Mpt Data Rates and Data Compressionmentioning

confidence: 99%

“…2. The developed MPT system was robust in the presence of surface piping, borehole drilling parameters and mud changing properties (Klotz et al 2008b). The new mud pulse telemetry system using the annular-venting pulsar technology to create negative pressure pulses in the borehole of the drill string was demonstrated by (Cooper et al 2015).…”

Section: Hardware Changesmentioning

confidence: 99%

See 1 more Smart Citation

A review of mud pulse telemetry signal impairments modeling and suppression methods

Mwachaka

2018

J Petrol Explor Prod Technol

View full text Add to dashboard Cite

Exploration and drilling operations are the most costly and risky activities that require logging while drilling effective tool operation and high speed real-time data transmission. Among other logging technologies, mud pulse telemetry has been widely adopted into real-time drilling and logging data measurements for deep formation evaluation decision-making. However, the increased downhole information quantity and quality requirements have elevated demands for greater bandwidth and higher data rate transmission. Maximum possible mud pulse telemetry data rates are obstructed by unpredictable signal impairments. Researchers have implemented numerous downhole signal modulation techniques, data compression algorithms and surface receiver noise cancellation techniques to lower bit errors and increase signal-to-noise ratio. This study reviews mud pulse telemetry system signal transmission challenges and current countermeasure trends. Rigorous technical literature reviews from exploration and drilling oilfield service industry have been at the receiving end debated. Mud channel signal characteristics, signal attenuation factors, signal detection and decoding techniques are critical to successful mud pulse operations. To minimize exploration, drilling and economic risks, this study explores mud pulse data transmission challenges, strategies and possible technical solutions to the next generation engineers and scholars in the field.

show abstract

Section: Mpt Data Rates and Data Compressionmentioning

confidence: 99%

Section: Hardware Changesmentioning

confidence: 99%

A review of mud pulse telemetry signal impairments modeling and suppression methods

Mwachaka

2018

J Petrol Explor Prod Technol

View full text Add to dashboard Cite

show abstract

“…Another problem in the drilling environment is the limited bandwidth available from mud-pulse-telemetry systems for streaming the data up to surface (Klotz et al 2008). As a result, T 1 and T 2 distributions have not been available in real time while drilling in the past.…”

Section: Mr Logging While Drilling (Lwd)mentioning

confidence: 99%

Magnetic Resonance in Chalk Horizontal Well Logged With LWD

Thorsen

Eiane

Thern

et al. 2010

SPE Reservoir Evaluation &Amp; Engineering

View full text Add to dashboard Cite

This paper describes geological and petrophysical evaluation of a new structure of a mature field to evaluate the reservoir potential in unproduced reservoir zones. The well was drilled in a carbonate with variations in rock quality and with minor subfaulting occurring. Gamma ray (GR), resistivity, density, neutron, and image services were used in the horizontal part of the well in addition to magnetic resonance (MR). To achieve the best possible real-time wellbore placement, reservoir navigation and continuous follow-up on the horizontal log interpretation were performed during drilling.For the first time, a low-gradient-MR-while-drilling technology was deployed in a virgin carbonate horizontal well on the Norwegian Continental Shelf. The MR service was run to obtain porosities (including partitioning of movable and bound fluids), hydrocarbon (HC) saturations, and permeability estimates. Fluid saturations based on traditional methods and the MR were evaluated and compared by core data, enhancing the understanding of the measurement and the reservoir. For post-processing, the MR data were integrated and interpreted together with the other measurements performed in the well, delivering an accurate and consistent reservoir description.The first part of the horizontal part of the well was drilled with conductive drilling fluid and the latter part with nonconductive drilling fluid. Laboratory measurements for the two mud filtrates were performed to understand the influence of the two different drilling-fluid types on the MR measurements. In the absence of water-based mudfiltrate invasion, the MR data show good agreement with saturations from core, confirming the quality and reliability of the MR data.Comparison of the MR T 2 distributions and volumetrics with image data indicates that even fine variations in rock quality and lithology are reliably resolved by the MR data. Before logging, old core data were used to refine the constants used in the Timur-Coates MR permeability equation, which quantitatively tracks changes in reservoir quality. The values were calibrated when Timur-Coates constants were derived from the well's core plugs.

show abstract

“…The advantages of directional drilling, in comparison to vertical drilling, has led to oil extractions to be extended from a very limited number of oil reservoirs in the 1980s to hundreds of wells at the moment. To achieve this goal, measurement at the time of drilling is essential [11,12]. Due to their sensitivity, the accuracy of these measurement tools is of great importance.…”

Section: Introductionmentioning

confidence: 99%

Calibration of accelerometer and magnetometer sensors of MWD systems in directional drilling application

Malekizadeh,

Afarideh,

Mohamadian

et al. 2024

Meas. Sci. Technol.

View full text Add to dashboard Cite

Measurement While Drilling (MWD) tools include accelerometers, magnetometers and temperature sensors. The accuracy of these sensors are highly important in measuring Inclination and Azimuth angle parameters in a directional well. These factors can increase costs when drilling a directional well. During the past years, many efforts have been made to increase the accuracy of these tools. Accuracy of accelerometer and magnetometer sensors are influenced by scale, bias and non-orthogonal errors. Considering that MWD systems work in a wide range of temperatures (for example 0-150 °C), the temperature parameter should also be added to the factors affecting the errors. Here, after making a sample of MWD tool, a method to calibrate the tool using mathematical model based on Total Field Calibration(TFC) algorithm, least square method and the transfer matrix is presented. Calibrated parameters at ambient temperature are calculated with acceptable speed. Then, a method for calculating temperature coefficients in the desired range is provided. Compared to the case where temperature coefficients are not considered, the obtained results show a significantly increased accuracy of Inclination and Azimuth parameters through the use of these coefficients.

show abstract

A New Mud Pulse Telemetry System Reduces Risks When Drilling Complex Extended Reach Wells

Cited by 9 publications

References 9 publications

A review of mud pulse telemetry signal impairments modeling and suppression methods

A review of mud pulse telemetry signal impairments modeling and suppression methods

Magnetic Resonance in Chalk Horizontal Well Logged With LWD

Calibration of accelerometer and magnetometer sensors of MWD systems in directional drilling application

Contact Info

Product

Resources

About