Nuclear Magnetic Resonance Logging: While Drilling, Wireline, and Fluid Sampling

Seifert, Douglas J.; Akkurt, Ridvan; Al-Dossary, Saleh; Shokeir, Ramez; Ersoz, Haluk

doi:10.2118/105605-ms

Cited by 6 publications

(2 citation statements)

References 10 publications

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“…NMR-LWD allows the petrophysical information to be obtained during drilling operation before any invasion happens. This reduces the borehole risk while allowing for timely decision (Seifert et al 2007). In 2007 Saudi Aramco ran LWD-NMR, conventional NMR and NMR fluid analyzer in one of the fields, the NMR fluid analyzer was run to evaluate the LWD-NMR results.…”

Section: Tar Detection In Carbonatesmentioning

confidence: 99%

A review on the applications of nuclear magnetic resonance (NMR) in the oil and gas industry: laboratory and field-scale measurements

Elsayed

Isah

Hiba

et al. 2022

J Petrol Explor Prod Technol

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This review presents the latest update, applications, techniques of the NMR tools in both laboratory and field scales in the oil and gas upstream industry. The applications of NMR in the laboratory scale were thoroughly reviewed and summarized such as porosity, pores size distribution, permeability, saturations, capillary pressure, and wettability. NMR is an emerging tool to evaluate the improved oil recovery techniques, and it was found to be better than the current techniques used for screening, evaluation, and assessment. For example, NMR can define the recovery of oil/gas from the different pore systems in the rocks compared to other macroscopic techniques that only assess the bulk recovery. This manuscript included different applications for the NMR in enhanced oil recovery research. Also, NMR can be used to evaluate the damage potential of drilling, completion, and production fluids laboratory and field scales. Currently, NMR is used to evaluate the emulsion droplet size and its behavior in the pore space in different applications such as enhanced oil recovery, drilling, completion, etc. NMR tools in the laboratory and field scales can be used to assess the unconventional gas resources and NMR showed a very good potential for exploration and production advancement in unconventional gas fields compared to other tools. Field applications of NMR during exploration and drilling such as logging while drilling, geosteering, etc., were reviewed as well. Finally, the future and potential research directions of NMR tools were introduced which include the application of multi-dimensional NMR and the enhancement of the signal-to-noise ratio of the collected data during the logging while drilling operations.

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Section: Tar Detection In Carbonatesmentioning

confidence: 99%

A review on the applications of nuclear magnetic resonance (NMR) in the oil and gas industry: laboratory and field-scale measurements

Elsayed

Isah

Hiba

et al. 2022

J Petrol Explor Prod Technol

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“…LWD tools are required to make measurements while rotating, in real or near-real time. Commercially available wireline and LWD tools address these issues and measure NMR signals using different techniques [ 89 , 90 , 91 , 92 , 93 , 95 , 110 , 111 , 112 , 113 , 114 , 115 , 116 , 117 ], but the common objective in all of these tools is to magnetically manipulate and measure NMR signals from the hydrogen nuclei in formation fluids. One important point to note is that the polarization and decay are time-sensitive components and therefore, lateral motion/vibration of the drillstring might result in the magnet and antennas not remaining in one position for long enough to fully polarize a region in the formation and measure the full decay.…”

Section: Nuclear Magnetic Resonance (Nmr)mentioning

confidence: 99%

Downhole Applications of Magnetic Sensors

Gooneratne

Moellendick

2017

Sensors

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In this paper we present a review of the application of two types of magnetic sensors—fluxgate magnetometers and nuclear magnetic resonance (NMR) sensors—in the oil/gas industry. These magnetic sensors play a critical role in drilling wells safely, accurately and efficiently into a target reservoir zone by providing directional data of the well and acquiring information about the surrounding geological formations. Research into magnetic sensors for oil/gas drilling has not been explored by researchers to the same extent as other applications, such as biomedical, magnetic storage and automotive/aerospace applications. Therefore, this paper aims to serve as an opportunity for researchers to truly understand how magnetic sensors can be used in a downhole environment and to provide fertile ground for research and development in this area. A look ahead, discussing other magnetic sensor technologies that can potentially be used in the oil/gas industry is presented, and what is still needed in order deploy them in the field is also addressed.

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Sensor design and implementation for a downhole NMR fluid analysis laboratory

Xiao

et al. 2012

Pet. Sci.

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This paper tries to build a multi-functional downhole nuclear magnetic resonance (NMR) uid analysis laboratory that can evaluate uid information in real time at reservoir conditions at a depth of several thousand meters. The aim is to monitor the pollution of the formation uids and quantitatively evaluate NMR characteristics of the uids. It focuses on the design of the structure and parameters of a sensor with zero stray elds. Two separate coils are designed to measure NMR characteristics of owing or static uids. A method is proposed to use the Bloch equation, to guide the optimization of the NMR sensor. Finally, the measured results con rm that the design is reasonable. There is a homogeneous static eld (perpendicular to the axial direction) in the center of the sensor, and there are no stray external elds. The novel design of pre-polarization magnet improves the signal to noise ratio, while shortening the sensor length.

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Nuclear Magnetic Resonance Logging: While Drilling, Wireline, and Fluid Sampling

Cited by 6 publications

References 10 publications

A review on the applications of nuclear magnetic resonance (NMR) in the oil and gas industry: laboratory and field-scale measurements

A review on the applications of nuclear magnetic resonance (NMR) in the oil and gas industry: laboratory and field-scale measurements

Downhole Applications of Magnetic Sensors

Sensor design and implementation for a downhole NMR fluid analysis laboratory

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