New Gas Logging System Improves Gas Shows Analysis and Interpretation

Pazzis, L.L. de; Delahaye, T.; Besson, L.J.; Lombez, J.P.

doi:10.2118/spe-19605-ms

Cited by 6 publications

(1 citation statement)

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“…This signal, which takes into account not only the present sensors output, but also constantly updates typical rig/well responses, will automatically trigger a drilling floor alarm and/or display. Drill string vibrations monitoring [2,3,4,5] and advanced kick detection [6,7] are the first topics which have been addressed. Research and development programs have been set up through IFP and Geoservices in order to improve the scientific background of the algorithms used by this processing software and to enhance their detection capabilities.…”

Section: Early Detection Of Abnormal Eventsmentioning

confidence: 99%

Interactive Drilling : the Up-To-Date Drilling Technology

Vincké

Mabile

2004

Oil & Gas Science and Technology - Rev. IFP

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Résumé -Le forage interactif : la technologie de forage d'aujourd'hui -Les technologies de forage ont fait beaucoup de progrès durant ces vingt dernières années. Dans le passé, le développement d'un champ nécessitait le forage de nombreux puits. Les premiers servaient à l'exploration et à l'évalua-tion du champ. Aujourd'hui, le forage de puits horizontaux ou de puits avec des géométries complexes se fait couramment. Les puits ERD (Extended Reach Drilling) permettent d'atteindre des réservoirs éloignés. Le forage est une occasion unique d'acquérir des données afin de prendre des décisions en temps réel menant à une optimisation globale de la productivité du puits. Toutes les nouvelles technologies, forage, acquisition et transfert de données, moyens de calcul rapide donnent l'occasion de fournir au géologue, à l'ingénieur de réservoir et au foreur l'information précise pour prendre de meilleures décisions. Des nouveaux outils doivent être conçus pour permettre une utilisation optimisée de cette information. Les données doivent être transformées en une information utilisable afin que des décisions puissent être prises rapidement avec un faible niveau de risque. En outre, il reste la nécessité de faire l'évaluation éco-nomique en temps réel du puits de sorte que la décision de poursuivre le forage ou non soit également prise en cours de forage. Dans ce dossier, différentes techniques utilisées dans le forage seront discutées. Ce sera aussi l'occasion d'illustrer des résultats de projets de recherche réalisés par l'IFP et ses partenaires. Abstract

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Section: Early Detection Of Abnormal Eventsmentioning

confidence: 99%

Interactive Drilling : the Up-To-Date Drilling Technology

Vincké

Mabile

2004

Oil & Gas Science and Technology - Rev. IFP

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60 Years of Multi-Fractured Vertical, Deviated and Horizontal Wells: What Have We Learned?

King

2014

All Days

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Multiple fracture placements in single wells have a sixty year history with first applications soon after hydraulic fracturing was patented. Fracturing technology has been applied to offshore deviated wells, sand control wells, tight gas, coal, chalks, shales and conglomerates in turn as "conventional" reservoir limits were reached and each "new unconventional" reservoir was encountered. As fracturing technology was adapted to make an "unconventional" reservoir into a conventional reservoir, the adaptations and evolutions needed became part of the technology tool box waiting for the next challenge. Each innovation improved and stretched the reach of completions and production engineering as new findings were incorporated to monitor, model, optimize and extend the ranges of fracturing use for high and low temperatures, high stress formations and a variety of other challenges. This review looks at the development of multi-fractured wells from its first application in vertical wells where one well could now do the task of three wells, to the first modern application of highly multi-fractured horizontal wells used in chalks, shales and tight oil and gas reservoirs. The technical focus is on the learning procession covering details of casing wear, cyclic pressure application, isolation mechanisms, perforation placement, well spacing and fracture spacing. The technical literature and field learnings have both been searched for applicable information with a surprising variety of engineering application details brought forth that are useful in optimizing a single well or a whole development.

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The Muddy Journey of Gas – Insights from Field Experience in Real-Time Fluid Identification

Bravo,

Ungar,

Donnadieu

et al. 2024

Day 1 Wed, April 17, 2024

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Mud gas data plays a pivotal role in drilling and well operations, primarily as a safety measure. However, this valuable source of reservoir fluid information has often been neglected due to technological limitations and data noise. With the advancement of digitalization in the oil industry, innovations in real-time fluid identification have revolutionized the utilization of advanced mud gas analysis, greatly enhancing the ability to predict reservoir oil and gas encounters during drilling with unprecedented accuracy. This groundbreaking technology has found widespread application in both exploration and production wells, spanning reservoir zones and overburden. The question arises: What has our field experience taught us after more than three years of implementation? We turn to field statistics to shed light on various aspects, including the overall quality of advanced mud gas data, the capabilities and delivery quality of service vendors, the robustness of our machine learning models, the crucial importance of quality control, the significance of integrating petrophysical logs and PVT data, the pitfalls inherent in this technology, and provide general guidance for future applications. Our past field experiences have demonstrated that advanced mud gas data quality can vary significantly among service providers. We have received outstanding service from certain companies while being disappointed by others. Moreover, the quality of service can fluctuate from one region to another, posing challenges in areas lacking prior service records. Overall, the capacity of advanced mud gas services from all vendors remains limited, especially when the need arises for simultaneous analysis of multiple wells. Although the service delivery may appear similar across companies, not all fulfill their contractual obligations. Furthermore, we have conducted rigorous testing of our machine learning models and discovered that reliability outweighs mere accuracy in general predictions. Real-life operations invariably involve dubious data and relying solely on a single data source can prove costly. Integrating machine learning with a comprehensive fluid database and real-time logging while drilling data emerges as a critical necessity to enable dependable reservoir fluid prediction. We have accumulated over three years of operational experience across over a hundred wells. Valuable field insights have complemented the real-time fluid identification breakthrough. These field experiences are as crucial as the technological advancements themselves. The wealth of field statistics not only guides service companies in improving their delivery but also inspires and encourages other operators to adopt this technology. Additionally, it forms the basis for further enhancements, ensuring continued progress in this domain.

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New Gas Logging System Improves Gas Shows Analysis and Interpretation

Cited by 6 publications

References 0 publications

Interactive Drilling : the Up-To-Date Drilling Technology

Interactive Drilling : the Up-To-Date Drilling Technology

60 Years of Multi-Fractured Vertical, Deviated and Horizontal Wells: What Have We Learned?

The Muddy Journey of Gas – Insights from Field Experience in Real-Time Fluid Identification

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