bluuebunny/crossref_metadata_2025_split huggingface dataset:
Advanced Hole Cleaning Monitoring in Real-time Improves Drilling Performance in Highly Deviated and Horizontal MRC (Maximum Reservoir Contact) Wells Drilled in the Lower Cretaceous Formations
Authors: Al-Sawafi M. , Hamouda A. , Ousdidene K. , Parmeshwar V. , Louati W. , Sharma S. , Farouk M. , Bahgat A. 
Published: November 2023

Abstract
Hole cleaning and wellbore instability remain key challenges while drilling highly deviated or horizontal wells. Inadequate hole cleaning or excess cuttings generated due to wellbore instability leads to incidents like stuck pipes due to well packing off and increasing Non-Productive Time (NPT). In addition, problems such as premature bit wear, high torque, and drag due to improper hole cleaning reduce the drilling rates and increase drilling costs.
The two case studies presented in this paper demonstrate the use of the advanced hole-cleaning monitoring approach in the horizontal section of Maximum Reservoir Contact wells across the Lower Cretaceous horizon. Data acquired in real-time from the hole-cleaning equipment provided actionable information that permitted timely optimization of drilling parameters for improved hole condition. These remedial actions avoided unplanned events such as hole pack-off and excessive reaming. The wells were drilled efficiently within the schedule, with the minimal risk associated with cuttings loading of the well due to improper hole cleaning.
Present-Day Stress Field of Western Desert of Egypt from Caliper and Image Logs
Authors: Moronkeji D. A. , Hussein S. , Willson S. M. 
Published: November 2023

Abstract
The Western Desert of Egypt has enormous oil and gas potential (El Dally, N.H. et al., 2022) but poses challenges in drilling and completion due to the presence of faults and their effects on stress orientation. In this study we investigate present-day stress field of the Western Desert of Egypt. Present-day maximum horizontal stress (SHmax) orientations were determined from borehole breakouts (BOs) and drilling-induced fractures (DIFTs) interpreted from caliper data and resistivity image logs. The stress measurements are summarized to provide an overview of the stress orientations. Detailed examples are presented for the Hamra and Rahma fields. The local faults appear to influence the in-situ stress orientations and follow either the predominant NW-SE or NE-SW regional trends generally found in the Western Desert, with the SHmax typically parallel to the orientation of nearby faults.
Advanced Techniques for Wellbore Stability Evaluation Using Logging-While-Drilling Technologies
Authors: Fouda M. , Taher A. , Hussein M. , Al-Hassan M. 
Published: November 2023

Abstract
Logging-while-drilling (LWD) technologies have long been used for real-time formation evaluation and Geosteering. Several optimization techniques for drilling and completions have been developed, based on data acquired from LWD technologies. In this paper, methods and techniques are presented where LWD measurements were utilized for the purpose of safely planning, drilling, and completing vertical and horizontal boreholes.
In addition to resistivity tools known to provide shallow and deep readings, density tools provide azimuthal borehole images from two detectors of different source-detector spacings, allowing their data to have different depths of investigation (DOI). Comparison between the responses of sensors having different DOI over multiple logging passes can be used to assess wellbore deterioration over time. Ultrasonic LWD imagers also provide high-resolution, azimuthal hole-size measurements allowing advanced evaluation of wellbore conditions. Integrating multiple sensors of different DOI in the logging suite, and comparing their individual responses, gives more insight into the borehole conditions than analysis of single-sensor data alone.
Data from LWD was integrated with surface-data-logging (SDL) data to provide full analysis of wellbore conditions in real time. Time-lapse analysis using data acquired while tripping out of the hole revealed deterioration that was not observed in the first logging passes while drilling. Interventions were made to mitigate wellbore instability and lessons have been captured to prevent hole deterioration in subsequent wells drilled in the area. Workflows have been developed to LWD technologies for wellbore stability monitoring to mitigate borehole deterioration, thereby optimizing operations for drilling and completions.
The Tensile Failure Characteristics of Black Shale Under Dynamic Brazilian Test
Authors: Jia Lichun , Huang Haoyong 
Published: November 2023

Abstract
Dynamic tensile failure is one of the main failure modes of layered shale during the horizontal drilling and hydraulic fracturing. To comprehensively understand the failure behaviors under dynamic loading, a series of split Hopkinson pressure bar (SHPB) tests are conducted on black Longmaxi shale under different loading rate at seven loading-bedding angles β. The results indicate that both static and dynamic Brazilian tensile strength (BTS) increase with the angle β. But the dynamic BTS are far greater than the static BTS. However, as the loading rate increases, the anisotropic index decreases gradually. In addition, there is a positive correlation between dynamic BTS and loading rate, which is that the dynamic BTS increases with loading rate. In this study, the relation between dynamic BTS and loading rate is fitted by a power function with correlation coefficients higher than 0.92. The failure samples show that there are four typical fracture patterns, which are central tensile failure as β=0° and β=90°, bedding activation shear failure as β=15°, non-central arc fracture at β=30° and 45°, mixed mode fracture as β=60° and 75°, respectively. This study provides significant data to evaluate the mechanical properties of layered black shale for safety and stability under dynamic loading.
Mechanical Properties Degradation in Depleted Clastic Reservoirs for CO2 Storage
Authors: Amir Rashidi M. R. , M Ali S. S. , Kashim M. Z. , Md Shah S. S. , Tan C. P. , Muhamad Zaidi M. N. , Thombare A. 
Published: November 2023

Abstract
Understanding the effects of CO2 exposure to the mechanical properties of a reservoir formation is critical in qualifying any CO2 storage candidate field. Two depleted clastic fields, D-Field and L-Field have been selected for evaluation for their CO2 storage potential. In this study, core samples from key reservoirs have been selected and their mechanical properties analyzed. Multi-stage triaxial tests were conducted on pristine samples classified as Pre- and Post-CO2 samples which have undergone 14 days of CO2 ageing with supercritical CO2 under reservoir conditions. The comparison of the results between the Pre- and Post-CO2 samples provides an understanding of the mechanical properties degradation observed on the samples which have been exposed to CO2. The results showed that both D-Field and L-Fields samples exhibited a general weakening trend observed between the Pre- and Post-CO2 samples comparison. However, D-Field exhibited higher magnitude of degradation compared to L-Field, as indicated from the reduction of Young’s Modulus (8 – 11% against 5%), unconfined compressive strength (20 – 34% against 0.3 – 4.5%) and cohesion (30 – 34% against 5.8 – 8%) between the Pre- and Post-CO2 samples. The lower magnitude of degradation observed in L-Field samples may indicates it as a more potentially viable storage candidate when compared to D-Field. However, the overall comparison of storage viability should also consider various other critical elements such as injectivity, storage capacity, seal capacity, leakage risks, etc., which are not deliberated in this laboratory study.
Prediction of Hydraulically and Thermally Induced Fracture Due to CO2 Injection Using Equivalent Inclusion Method
Authors: Su K. , Pujol G. , Rodriguez-Martinez A. , Moncorgé A. , Muhaimin W.F.A. Wan 
Published: November 2023

Abstract
How to predict the initiation and extension of thermally induced fractures (TIF) and evaluate their impact on CO2 injection in depleted reservoirs has become a critical concern in the CO2 storage projects. To address this question, it is imperative to carry out thermo-hydro-mechanical (THM) coupled numerical modeling of the reservoir rock. To circumvent the heavy numerical complexity of fully THM coupling, a two-way coupling method inside a unique code, a form of hybrid coupling method, is proposed. This method involves incorporating a mechanical solution based on the Equivalent Cuboid Inclusion Method (ECIM) into the solver for mass and heat transfer. In this paper, we firstly present the issue of TIFs in the context of CO2 storage and provide a concise review of this topic. We then introduce the ECIM method and provide the stress solution of a single cuboid element due to changes of pore pressure and temperature. The application of this hybrid method in a hypothetical CO2 injection case has shown the high capacity of the ECIM method to evaluate of stress change resulting from CO2 injection. The results show that the tensile fracture propagates as the front of cooling progress over time, reaching a distance of 70 m at two years and 110 m at six years after injection in this case study.
Nuclear Magnetic Resonance (NMR) Study on Micro Porosity Damage of Coal Body by Gas Desorption
Authors: Yin Zhiqiang , Wang Jianen , Chang Jucai , Zhao Guangming , Tu Min , Zhang Xiangyang , Kong Peng 
Published: November 2023

Abstract
To describe the damage evolution law of microscopic pores at the microscopic scale, gas adsorption and desorption tests based on the low-field nuclear magnetic resonance technique (LF-NMR) were conducted under different gas pressures and desorption rates. The experimental results show that the P1 peak of adsorbed gas is significantly larger than the primary adsorption, the peak apex of adsorption is higher, the peak width (transverse relaxation time T2 range) is more extensive, and the enhanced inter-pore connectivity is more favorable to gas infiltration and transport. With the increase of gas desorption rate, the damage development of coal samples is higher, which improves the inter-pore connectivity, thus the re-absorption T2GM decreases. The damage factor D is defined from the NMR T2 spectrum concentration index, and the damage factor D increases with the increase of gas pressure and gas desorption rate. Considering the role of desorption gas on crack propagation, a model is established to theoretically explain the effect of gas desorption on coal damage evolution. This study is significant for coal and gas outbursts prevention and coalbed methane utilization.
Cost–effectiveness analysis of Avance
®
allograft for the treatment of peripheral nerve injuries in the USA
Authors: Ansaripour Amir , Thompson Ann , Styron Joseph F , Javanbakht Mehdi 
Published: November 2023

Aim:
Peripheral nerve injury (PNI) is a debilitating condition with significant associated morbidity, and which places a substantial socioeconomic burden on healthcare systems worldwide. Recently, allograft has emerged as a viable surgical alternative to autograft for the treatment of PNI. This study evaluated the cost effectiveness of allograft (Avance
®
Nerve Graft) compared with autograft for the peripheral nerve repair, from a US payer perspective.
Methods:
A Markov cohort model was developed to consider the treatment pathways followed by a patient population undergoing a single transected nerve repair with either allograft, or autograft. The marginal difference in meaningful recovery (MR) (effectiveness), and costs, between the two groups were estimated over a lifetime horizon. Deterministic and probabilistic sensitivity analyses (PSA) were performed to consider the uncertainty surrounding the base-case input parameter values and their effect on the overall incremental cost–effectiveness ratio (ICER).
Results:
The base-case analysis indicates that there is a small difference in the average probability of MR between the two groups (75.15% vs 70.46%; +4.69% with allograft). Allograft also results in cost savings ($12,677 vs $14,023; -$-1346 with allograft) compared with autograft. Deterministic sensitivity analysis shows that the costs of the initial surgical procedures are the main drivers of incremental cost, but that the intervention is likely to be cost saving compared with autograft regardless of the parameter variations made.
Conclusion:
The use of allograft with the Avance Nerve Graft has the potential to be a cost-effective alternative to autograft for the surgical treatment of PNI in the USA.
HUBUNGAN KEKUATAN OTOT JARI TANGAN DAN KOORDINASI MATA TANGAN DENGAN HASIL PASSING ATAS BOLA VOLI
Authors: Devit Devit wilastra , Yulmiando Rahmad 
Published: November 2023

Pada saat melakukan passing atas bola voli sebagian Atlet masih mengalami kegagalan dan posisi jari tangan yang salah, kurangnya fungsi koordinasi antara mata dan tangan, oleh karena itu diperlukan kekuatan otot jari tangan dan koordinasi mata tangan yang baik sehingga siswi dapat melakukan passing atas dengan baik. Penelitian ini bertujuan untuk mengetahui hubungan Hubungan Kekuatan Otot Jari Tangan dan Koordinasi Mata Tangan Dengan Hasil PassingAtas Bola Voli Pada Kegiatan Pengembangan Diri Siswi Smk Negeri 1 Tembilahan. Penelitian ini terdiri dari 3 variabel yaitu variabel bebas dan terikat. Jenis penelitian ini adalah korelasional,populasi yang digunakan adalah seluruh siswi yang mengikuti pengembangan diri Bola Voli di SMK Negeri 1 Tembilahan yang berjumlah 12 orang siswa putri.teknik sampling atau teknik pengambilan sampel yang digunakan dalam penelitian ini adalah total sampling. Teknik analisa data digunakan adalah dengan korelasi product momen berganda. Hasil penelitian ini menyimpulkan bahwa terdapat hubungan yang signifikan antara kekuatan otot jari tangan dengan hasil passing atas bola voli rhitung = 0.95 > rtabel = 0.576. dan terdapat hubungan yang signifikan koordinasi mata tangan dengan hasil passing atas bola voli rhitung = 0.91 > rtabel = 0.576 dan juga terdapat hubungan yang signifikan kekuatan otot jari tangan dan koordinasi mata tangan dengan hasil passing atas bola voli Rhitung = 0.867 > rtabel = 0.576. maka hubungan antara variabel (x₁) variabel (x₂) dengan variabel (y) dapat dihitung kebenarannya diuji dengan Uji-F dan Fhitung = 13,6 > Ftabel = 4.26 dari hasil perhitungan tersebut dapat disimpulkan bahwa terdapat hubungan yang signifikan antara (X₁X₂Y) pada kegiatan pengembangan diri siswi SMK Negeri 1 Tembilahan.
Protocolo de investigación enfermera en una unidad terapéutica educativa
Authors: SANTAMARIA SANZ ITXASO 
Published: November 2023

Introducción. Las relaciones durante la infancia/adolescencia son fundamentales para la construcción psíquica. La familia y el colegio son inicialmente los medios de socialización donde la calidad de la experiencia relacional predetermina un modelo futuro. Las dificultades en el ámbito relacional tienen una repercusión en la salud mental de los menores. Existe un incremento de las conductas conflictivas e inhibidas en el alumnado, al igual que un aumento en prevalencia de trastornos psiquiátricos, siendo necesaria una evaluación de los recursos. Metodología. Este estudio cuasi-experimental unicéntrico, pre-post sin grupo control, tipo longitudinal de carácter prospectivo tiene como objeto evaluar los cambios en el desempeño del rol de padres y las habilidades de interacción social y resiliencia personal de la población atendida en la Unidad Terapéutica Educativa de Ortuella, desde una perspectiva enfermera, durante un curso escolar. La prueba Kolmogorov-Smirnov o Shapiro-Wilk determinará si la distribución de la variable es normal. Se utilizará la t de Student para muestras pareadas o Wilcoxon cuando la distribución de la variable no fuese normal y McNemar para comparación de proporciones, con un intervalo de confianza del 95%, considerándose significativo una p<0.05. Utilidad práctica. Los resultados permitirán comprobar si la permanencia de un curso escolar en la Unidad Terapéutica Educativa se relaciona con una mejora de las variables a estudio.

ABSTRACT
Introduction. Relationships during childhood/adolescence are fundamental for the psyche construction. The family and the school are the initial means of socialization and it is there where the quality of the relational experience predetermines a future model. Difficulties in the relational sphere have an impact on the mental health of minors. There is an increase in conflictive and inhibited behaviors in students, as well as an increase in the prevalence of psychiatric disorders, making an evaluation of resources necessary. Methodology. This unicentric quasi-experimental study, pre-post without control group, longitudinal type of prospective nature, aims to evaluate the changes in the performance of the parental role and the social interaction skills and personal resilience of the population served in the Educational Therapeutic Unit of Ortuella, from a nursing perspective, during a school year. The Kolmogorov-Smirnov or Shapiro-Wilk test will determine whether the distribution of the variable is normal. Student's t test will be used for paired samples or Wilcoxon when the distribution of the variable is not normal and McNemar for comparison of proportions, with a confidence interval of 95%, with p<0.05 being considered significant. Utility in practice. The results will allow us to verify whether the permanence of a school year in the Educational Therapeutic Unit is related to an improvement in the variables under study.
Meningkatkan Pemahaman Nilai-Nilai Islam Melalui Dakwah di Desa Pinaesaan Kabupaten Minahasa Selatan
Authors: Nur Fuad 
Published: November 2023

Islam ini tidak hanya berperan sebagai pedoman spritual bagi setiap individu, tetapi juga memiliki peran penting dalam membentuk etika dan perilaku sosial masyarakat. Dakwah dilakukan guna menyebarkan ajaran Islam kepada individu dan masyarakat dengan tujuan untuk mendorong pemahaman yang lebih dalam dan praktik yang lebih konsisten terhadap nilai-nilai Islam. Metode yang digunakan adalah dengan terlebih dahulu melakukan persiapan dan perencanaan, pelaksanaan kegiatan, dan evaluasi kegiatan. Kegiatan ini dilaksanakan langsung di Desa Pinaesaan Kecamatan Tompaso Baru Kabupaten Minahasa Selatan. Adapun kegiatan yang telah terlaksana adalah menyampaikan hikmah Idul Qurban, pesan moral membangun generasi qur’ani melalui khutban Jum’at, meningkatkan kemampuan literasi Al-Qur’an, dan bersama-sama masyarakat mempererat hubungan sosial melalui tradisi barzanji. Semua kegiatan tersebut merupakan bentuk dakwah bil lisan (lisan) dan dakwah bil hal (perilaku) guna meningkatkan pemahaman nilai-nilai Islam dalam masyarakat. Dukungan pemerintah desa dan masyarakat serta tingginya sikap toleransi antar umat beragama di Desa Pinaesaan menjadikan kegiatan ini dapat diterima dan terlaksana dengan baik.
Edukasi Pertolongan Pertama Pada Gangguan Dan Kecelakaan Fisik Di Lingkungan Sekolah Desa Bandar Setia Kabupaten Deli Serdang
Authors: Munawar Ahmad Al , Fuadaturrahmah Fuadaturrahmah , Azandi Filli , Artika Nisa , Habibi S. Ahmad , Hamdani Muhammad , Agustian Muhammad Ardhy , Lagu Aszon Fisi , Sentosa Bebi Putra 
Published: November 2023

Sekolah merupakan satuan pendidikan yang menyelenggarakan pembelajaran bersifat interaktif dan sosial. Dalam kesehariannya warga sekolah beraktivitas dengan intesitas tinggi dapat berdampak pada resiko cedera. Kecelakaan adalah peristiwa yang memiliki efek negatif berupa kerugian material maupun non-material. Gangguan anatomis dan fisiologis merupakan dampak yang sering terjadi. Penanganan yang tidak tepat akan menambah buruknya efek dari kecelakaan tersebut, bisa saja efek yang dirasakan bersifat permanen seperti luka robek, gerak tubuh tidak normal, ataupun fungsi bagian tubuh yang tidak bekerja sebagaimana mestinya. Tentunya efek negatif tersebut tidak diinginkan, maka diperlukan kesadaran dan kewaspadaan tinggi dari warga sekolah dalam menanggapi kecelakaan fisik yang terjadi. Kegiatan pengabdian ini bertujuan memberikan pemahaman keilmuan warga sekolah dalam menanggapi peristiwa kecelakaan yang terjadi. Setiap individu bertanggung jawab terhadap keamanan dan kenyamanan di lingkungan sekolah, maka sebaiknya warga sekolah mendapatkan edukasi tindakan dalam mencegah dan memberikan pertolongan pertama pada kecelakaan fisik disekolah. Kesalahan dalam pertolongan pertama akan memperparah kondisi korban. Setiap tindakan haruslah cepat dan terukur sehingga memudahkan bagi paramedis memberikan pertolongan lanjutan. Perlunya adanya pemahaman bahwa pertolongan pertama bukanlah tindakan bersifat permanen sehingga korban tidak perlu dibawa ke paramedis, namun pertolongan pertama hanyalah sebuah tindakan temporer dalam membantu korban agar efek dari kecelakaan yang terjadi tidak menjadi buruk.
Als die Playboy Bunnies deutsch wurden...
Authors: Luzzi Silvan 
Published: November 2023

Da kein Abstract des Artikels vorhanden ist, finden Sie hier den Beginn des Artikels:
Ein Häschen Logo ziert den Playboy – heute ist dieser Hase wohl so bekannt wie der Schriftzug von Coca Cola. Der Playboy entwickelte sich zu einer weltbekannten Marke – sie steht für nackte Haut, Hasenkostüme und den gealterten ‹Playboy› Hugh Hefner. Mit einer Zeitschrift fing alles an. Der Erfolg war damals so wenigabsehbar, wie die Dimensionen, die das Unternehmen heute angenommen hat. Hefner verzichtete bei der ersten Ausgabe auf eine Datumsangabe. Wann die nächste Publikation erscheinen sollte war ungewiss. Doch das Konzept des jungen Amerikaners ging auf. Ästhetische Fotos ansprechender und leichtbekleideter Frauen, solider Journalismus, der ein zwinkerndes Auge nicht ausschloss, das sind Stärken und Grundlage für den Erfolg.
Community-Radio in Afrika
Authors: Schnyder Sabina 
Published: November 2023

Da kein Abstract des Artikels vorhanden ist, finden Sie hier den Beginn des Artikels:
Seit der Verbreitung des Fernsehens hört man Radio in der Schweiz vor allem als Begleitmedium. Die gleiche Situation zeigt sich auch in anderen Industrieländern. Doch welchen Stellenwert hat das Radio in Ländern des ‹globalen Südens›? In Regionen, in denen Krieg oder politische Spannungen herrschen und wo der Zugang zu unabhängiger Information über Medien keine Selbstverständlichkeit ist? Wo liegen die Chancen des Radios in Krisengebieten? Wirft man einen Blick in die ethnologische Literatur zu diesemThema, so zeigt sich, dass das Radio in vielen Ländern Afrikas zu einem wichtigen Medium geworden ist. Der grosse Stellenwert des Radios in diesen Ländern ist auf verschiedene Umstände zurückzuführen, die im Folgenden anhand des Beispiels Radio Ndeke Luka (nachfolgend RNL) aus der Zentralafrikanischen Republik (nachfolgend ZAR) erläutert werden. In diesem Essay werde ich mich mit der Frage beschäftigen, welche Funktion das Radio in einem Land mit gegenwärtiger, politischer Instabilität einnimmt. Diesem Essay liegen als Quellen hauptsächlich die Fallstudie des Sozialanthropologen und Radioforschers Tilo Grätz (Grätz 2010) über Community-Radios in Benin (Westafrika) sowie einem online-Artikel aus der Neuen Zürcher Zeitung von Annegret Mathari (Mathari 2014), die ein Gespräch mit dem Chefredakteur von RNL geführt hatte, zu Grunde. Zum besseren Verständnis bezog ich einen Bericht über die gegenwärtige Lage in der ZAR von Amnesty International und den Text Mündliche Kulturen von Edith Broszinsky-Schwabe (Broszinsky-Schwabe 2002) aus der Broschüre Radio Kommunikation in Afrika vom Deutschen Gewerkschaftsbund Bildungswerk mit ein.