bluuebunny/crossref_metadata_2025_split huggingface dataset:
Acquisition Using Autonomous Marine Vehicles: Wave Glider Field Test, Offshore Abu Dhabi
Authors: Benson M. A. , Lecoq T. , Mercado G. , Nakayama S. , Moldoveanu N. , Caprioli P. , Nyein G. , Pai S. , Yandon E. 
Published: February 2017

Abstract
A field test was conducted utilizing autonomous marine vehicles (AMVs) and 3D sensor arrays (3DSAs) to record and compare seismic data generated during an ocean-bottom cable (OBC) survey. The test was a field verification to check that the AMV platform and the sensor array can deliver high-quality seismic data in a form that can be successfully processed and compared to ocean-bottom fixed-receiver data.
Three AMVs, each towing a 3D sensor array, were deployed during the acquisition of an OBC 3D survey in shallow water, offshore Abu Dhabi. The test was conducted to (a) assess the feasibility of seismic acquisition using AMVs and 3D sensor arrays including safe deployment and retrieval, (b) evaluate the performance of the 3D sensor arrays based on holding station capability, maintenance of desired depth, and accuracy of measurements of pitch and orientation, and (c) compare the quality of the acquired seismic data with the pressure data recorded in the OBC survey.
The water depths across the acquired survey area average approximately 20 m. Due to the very shallow water depths, towed-streamer acquisition is seldom used offshore Abu Dhabi, limiting the marine seismic acquisition methods to either OBC or ocean-bottom nodes (OBN). The AMV and 3D sensor array are ideally suited to operate and record seismic data in this shallow-water environment, providing a potentially viable alternative for off-bottom recording or as a method to supplement OBC or OBN data acquisition.
The feasibility test conducted in offshore Abu Dhabi demonstrated the successful and safe deployment, seismic data acquisition, and retrieval of the AMV and 3D sensor array. The evaluation criteria indicate the consistent performance of the AMV and 3D sensor array, and that the recorded data are comparable to the OBC component data in terms of signal-to-noise ratio and frequency bandwidth. The processing flow that may typically be applied on the OBC data for signal processing, velocity model building, and imaging may also be applied to the 3D sensor array data.
Marine seismic data can be acquired using towed-streamer arrays, ocean-bottom cables, or nodes in which the receivers are placed in fixed positions on the seafloor. Limitations to acquisition in each case may be determined by water depth and seafloor topography, or operational constraints due to in-situ infrastructure and obstructions. In the cases where these sorts of limitations arise, a loss in operational efficiency may easily result, which will ultimately drive the acquisition cost up, or may even result in poor or no data coverage. Using the AMV offers the potential to acquire seismic data in these cases where adverse existing factors may hamper standard acquisition methods.
Systematic Evaluation of Shale Play by Introducing Integration of Inversion Geophysics, Petroleum System and Reservoir Simulation Workflows
Authors: Dubey Siddharth , Chakraborty Dibakar , Mishra Shubham , Fredd Christopher 
Published: February 2017

Abstract
Recent focus in exploitation of unconventional hydrocarbons like shale gas and shale oil have brought numerous exploration and production challenges worldwide. Unconventional exploration of hydrocarbons, over the past decade has seen a lot of improvement in use of multi domain technology like inversion geophysics, petroleum systems modeling, reservoir characterization, fracture geomechanics and production stimulation. However, identification of sweet spot for drilling wells is one aspect of the unconventionals, production of hydrocarbon is another major challenge which industry faces. Due to lack of integrated studies, a well drilled in a shale reservoir can end up in producing little or no hydrocarbons, or can have rapid decline rate of hydrocarbon production. Till date no attempt has been made to combine inversion geophysics, petroleum system modeling, fracture geomechanics and production optimization to make an integrated earth model, which can predict the sweet spots and help in predicting production optimization scenarios in shale reservoirs. In this study, an integrated workflow has been developed, which combines all three domains (Inversion Geophysics, Petroleum System Modeling & Reservoir Engineering) in a systematic manner, which can help in robust exploitation of sweet spots to generate optimum production profile which is economically most viable. In addition to the novelty of integrating seismic, basin modelling and reservoir engineering; this invention involves optimized hydraulic fracture (HF) design and production performance generated from an unstructured grid. Combination of hydraulic fracture optimization on an unstructured grid with sweet spot and natural fracture propagation by seismic inversion and basin modelling workflow, further strengthens the novelty of the workflow.
Low Injection Squeeze to Reduce Gas Oil Ratio & Gain Significant Crude Production using Epoxy Resin Technology
Authors: Tiwari Shobhit , Deo Aniket , Kumar Amit , Anand Prem , Singhal Ashish , Kumar Animesh , Gillies James , Li Jason 
Published: February 2017

Abstract
NI-5 is a first-stage development well in the NI field, Rajasthan. After bringing it on production, a high gas/oil ratio (GOR) of approximately 2,500 scf/STB was observed. In comparison, offset wells in the same field commonly had GORs of 250 to 300 scf/STB. The well was taken off production and shut-in as a result. This paper presents a remedial cementing operation including the development of a synthetic resin-based sealant to bring this well back onto production.
Identification of the ideal treatment zone used open hole logging techniques combined with a cement bond log (CBL) to locate the gas/oil contact (GOC) and determine the condition of the cement sheath. These results indicated only minimal injection would be achievable, and to seal the suspected leak, a material would need to be placed to establish isolation between the GOC and the producing perforation. The chances of success with a conventional cementing solution were low. In addition, potential contamination could compromise strength development.
An epoxy resin system was selected for this gas shutoff treatment because of its high-penetration ability, strength once set, and ability to resist contamination. Strategic placement of a low-volume sealant focused on accessing the zone of interest through perforation, cleanout, zone preparation to receive the treatment, multistage squeeze techniques, and treatment removal from the casing by drilling. Conventional cement testing equipment was used to customize the resin formulation to the downhole conditions. After placement and solidification of the resin, a reliable barrier was formed, and the resin remaining in the casing was able to be successfully drilled. The well was brought back online and is currently producing approximately 1,000 BOPD with GOR on par with other wells in the same field.
The epoxy resin technology has unique properties, which makes it best suited for gas shutoff especially in tight geometries such as in this case of micro-annulus channel in cement sheath. The resin system is solids-free (Newtonian fluid in a liquid state) and can provide a high-pressure seal. The system also withstands contamination (overcomes inefficient mud displacement). In addition, this drillable system develops compressive strength ranging from 5,000 to 15,000 psi.
Geomechanics Aided Solutions for Improving Drilling and Completions by Integrating Advance Acoustics Measurements: A Case Study from Malleswaram Field, Onshore KG-PG Basin, India
Authors: Reddy S. S. , Anjaneyulu J. V. , Lal Abhay Kumar , Rao E. J. , C H Ramakrishna , Talreja Rahul , Bahuguna Somesh , Zacharia Joseph , Chatterjee Chandreyi , Basu Jayanta 
Published: February 2017

Abstract
Malleswaram field in Krishna-Godavari (KG) basin has proven gas reserves in the late Cretaceous Nandigama formation. Many drilling challenges were faced, including losses, tight hole, and stuck pipe in the Raghavapuram and Nandigama formations overlying the reservoir interval. This study was conducted to provide a solution for drilling optimization by mitigating drilling-related nonproductive time (NPT). Integration of acoustic and geochemical data for geomechanics study provided a new insight into cause of overpressure and need for revamping of casing policy to significantly improve wellbore stability, mitigate risks, and ensure future drilling success. Generated stress models can be used to optimize hydraulic fracturing in these reservoirs. A completion quality based on stress model indicates the need for multistage fracturing due to the presence of stress barriers inside sand units in Nandigama formation.
Efficient Low Maintenance Natural Ceramic Technology to Treat Sea and Produced Water
Authors: Batarseh Sameeh I. , Al Harith Abdullah , Othman Haitham , Kumaoka Shunichi 
Published: February 2017

Abstract
The objective of this work is to treat seawater and produced water by utilizing natural ceramic materials for different applications such as water injection, water disposal, hydraulic fracturing and steam generation. Research has discovered efficient low maintenance natural ceramic materials with unique properties like having a long life of 10 years and very low maintenance — once every 2 years. This paper presents several successful water treatments from different reservoirs with consistence in treatment percentage in all the reservoirs.
Natural ceramic earth materials are used to treat seawater and produced water as these materials break down the compositions of the contaminations by adsorption. The lab setup and experimental work has demonstrated the efficiency of this technology by treating several samples. The principle is using treatment stages that the water will pass through. These stages have natural ceramic materials and when they interact with water, it break downs contaminates of produced water such as hydrogen sulfide (H2S), radioactive, sulfate, dissolved solids and depressed oil in water.
There are several issues associated with produced water such as H2S contaminations, including safety, formation damage, scaling and corrosion. That increases the operational cost and workover, increases downtime, and killing and coiled tubing intervention. The water treatment eliminates or reduces surface facility costs. The system treated different contaminations such as radioactive (79%), sulfate (89%), chloride (80%) total dissolved solids (TDS) (80%), and others.
The success of the treatment is due to the unique ceramic materials' properties, which make them an excellent candidate for treatment, such as 80% continuity, a large surface area, adsorptivity and adsorption rate, heat resistance up to 1100 °C, chemically stable (will not react with acid and alkaline), lightweight (sp 0.4 to 0.45), 10 years life time and 2 years maintenance. Based on the result, the current plan is to treat 190,000 barrels per day (BPD).
Kajian Keselamatan dan Kesehatan Kerja Bengkel di Jurusan Pendidikan Teknik Sipil dan Perencanaan Fakultas Teknik Uny
Authors: Hidayat Nur , Wahyuni Indah 
Published: February 2017

The objective of this study was to analyse: (1) the plan (2) the implementation, and (3) the evaluation of the Occupational Safety and Health (OSH) management in the workshop of the Department of Civil Engineering and Planning Education, Faculty of Engineering, Yogyakarta State University (YSU). This study was categorised into descriptive study that scientifically explained the workplace environment of the workshop specifically in terms of the OSH management. The data collection techniques used observations, interviews and questionnaires. The data of this study was analysed descriptively. This study presented the detailed descriptions of the collected data in the field. The results revealed (1) It is crucial to develop a more systematic OSH management plan in the workshop of the Department of Civil Engineering and Planning Education, Faculty of Engineering, YSU (2) the planning policies and the implementation of the OSH management need a continual improvement and (3) the evaluation of the OSH management should be conducted simultaneously by the stakeholders, the lecturers and the technicians. (4) The OSH policy in the practices should be properly organised to promote the OSH culture in the workshop. (5) The OSH management control and review were prioritised for fostering the effectiveness of the OSH management implementation.Penelitian ini bertujuan untuk mengetahui perencanaan, pelaksanaan, dan evaluasi Keselamatan dan Kesehatan Kerja (K3) di Bengkel Jurusan Pendidikan Teknik Sipil dan Perencanaan FT UNY. Penelitian ini merupakan penelitian deskriptif (descriptive reasearch) yang memaparkan secara ilmiah keadaan di lingkungan bengkel khususnya mengenai aspek K3. Metode pengumpulan data menggunakan observasi, wawancara, dan angket. Analisis data menggunakan analisis deskriptif. Penelitian ini mendeskripsikan secara detail terhadap apa yang ditemukan dalam pengambilan data. Hasil penelitian ini menunjukkan bahwa: (1) Perencanaan K3 di bengkel masih perlu diperbaiki agar lebih matang dan sistematis. (2) Pelaksanaan K3 di bengkel masih perlu ditingkatkan terkait dengan kebijakan perencanaan dan pelaksanaan. (3) Evaluasi K3 di bengkel perlu dilakukan secara simultan oleh pihak penentu kebijakan, dosen, dan teknisi. (4) Budaya K3 di bengkel masih perlu ditingkatkan dengan penetapan kebijakan mengenai K3 dalam proses pembelajaran praktik. (5) Faktor peninjauan dan peningkatan kinerja K3 perlu dilakukan untuk menjamin kesesuaian dan efektivitas penerapan sesuai Sistem Manajemen K3.
PENGEMBANGAN MODEL ASESMEN AUTENTIK PEMBELAJARAN IPA KONTEKSTUAL TERINTEGRASI DENGAN MODEL PENGAJARAN BERPIKIR TINGKAT TINGGI SEBAGAI UPAYA MENINGKATKAN KOMPETENSI SISWA SMP
Authors: Nyoman Setiawan I Gusti Agung 
Published: February 2017

Penelitian ini bertujuan untuk mewujudkan model asesmen pembelajaran IlmuPengetahuan Alam (IPA) kontekstual terintegrasi dengan model pengajaran berpikir tingkattinggi sebagai upaya untuk meningkatkan kompetensi siswa SMP. Penelitian inidirencanakan bertahap selama tiga tahapan. Untuk tahap ketiga tahun ini, target yang ingindicapai adalah: 1) Uji komparasi Rancangan model assesmen autentik pembelajaran IPAkontekstual terintegrasi dengan model pengajaran kemampuan berpikir tingkat tinggi siswa; 2) Mendapatkan respon dari guru tentang Rancangan model assesmen autentik pembelajaran IPA kontekstual terintegrasi dengan model pengajaran berpikir tingkat tinggisiswa. Penelitian ini menggunakan desain penelitian eksperimen dengan menggunakanrancangan the post test only control group design. Hasil penelitian menunjukkan terdapatperbedaan yang signifikan antara model assesmen autentik pembelajaran IPA kontekstualanatara siswa yang dibelajarkan dengan pembelajaran kontekstual dengan pembelajarankonvensional.
TAKSONOMI PEMBELAJARAN DAN PENILAIAN HASIL BELAJAR BERBASIS TRIKAYA
Authors: Subagia I Wayan 
Published: February 2017

Penelitian ini bertujuan untuk mengembangkan taksonomi dan penilaian hasil belajarberbasis kompetensi. Perumusan taksonomi tersebut dilakukan melalui penelitianpengembangan dengan lima tahapan pokok, yaitu pengumpulan informasi, perencanaan,perumusan gagasan model taksonomi, pengujian model oleh ahli, dan penyempurnaanmodel taksonomi. Hasil penelitian ini berupa rumusan taksonomi penilaian hasil belajarberbasis kompetensi yang selanjutnya diberi nama Taksonomi Trikaya. Taksonomi Trikayaterdiri atas tiga domein, yaitu domein pikiran (manacika), perkataan (wacika), dan perbuatan(kayika). Domein pikiran teridiri atas: 1) berpikir faktual, 2) berpikir positif, 3) berpikir rasional logis, 4) berpikir kritis, dan 5) berpikir kreatif inovatif. Domein perkataan tediri atas: 1)berbicara santun, 2) berbicara faktual, 3) berbicara rasional logis, 4) berbicara sistematis,dan 5) berbicara komunikatif. Domein perbuatan terdiri atas: 1) berbuat sopan, 2) berbuatpatuh, 3) berbuat jujur, 4) berbuat yakin, dan 5) berbuat kreatif inovatif.
PENGARUH METODE PEMBELAJARAN DAN TINGKAT MOTOR EDUCABILITY (ME) TERHADAP KETERAMPILAN DASAR SMASH KEDENG DALAM PERMAINAN SEPAK TAKRAW DI SMPN 4 KUBUTAMBAHAN
Authors: Semarayasa I Ketut 
Published: February 2017

Penelitian ini bertujuan untuk: 1) mendapatkan informasi tentang guru-guru SD di kota Singaraja memilih atau menggunakan materi pelajaran sesuai dengan konteks, lingkungan, setting siswa, atau materi pelajaran yang berbasis local content; 2) mendapatkan informasi pada bidang studi apa saja guru-guru SD di kota Singaraja telah memilih atau menggunakan materi pelajaran sesuai dengan konteks, lingkungan, setting siswa, atau materi pelajaran yang berbasis local content; 3) mengetahui bagaimana tingkat kemampuan guru-guru SD di kota Singaraja dalam memilih, atau menggunakan materi pelajaran sesuai dengan konteks, lingkungan, setting siswa atau materi pelajaran yang berbasis local content. Penelitian ini dirancang dalam bentuk penelitian ex post facto, yang bersifat kualitatif. Data dikumpulkan dengan teknik koleksi dokumen dan dengan cara multistage stratified random sampling. Selanjutnya data dianalisis secara deskriptif dan kualitatif. Hasil penelitian ini menunjukkan: 1) RPP guru-guru SD di Kota Singaraja yang mengandung materi pelajaran berbasis local content berjumlah 302 buah (76,46%). RPP guru-guru SD di Kota Singaraja yang tidak mengandung materi yang berbasis local content adalah 93 buah (23,54%); 2) bidang studi Bahasa Bali secara keseluruhan menggunakan materi pelajaran yang berbasis local content. Bidang studi Bahasa Indonesia hanya menggunakan:77,57%, Pendidikan Kewarganegaraan: 72,55%, Ilmu Pengetahuan Alam: 65,79%, Matematika: 84,09%, Ilmu Pengetahuan Sosial: 77,27%, Seni Budaya dan Keterampilan: 90%, dan Agama Hindu: 83,33%.; 3) Jumlah RPP yang berada pada kategri sangat cocok adalah 163 buah (53,44%). Jumlah RPP yang berada pada kategori cukup cocok adalah 142 buah (46,56%). Tak satu pun RPP ada pada tingkat kategori tidak cocok. Disarankan agar, para guru SD di kota Singaraja memilih dan menggunakan materi pelajaran berbasis local content untuk mendukung pembelajaran bermakna.
STUDI ANALISIS KEBUTUHAN PENGEMBANGAN BUKU PANDUAN KESELAMATAN DALAM PEMBELAJARAN PENJASORKES DI SMA DAN SMK KABUPATEN BULELENG
Authors: Agus Dharmadi Made 
Published: February 2017

Tujuan penelitian ini adalah untuk memperoleh gambaran penggunaan aspek keselamatan dalam pembelajaran penjasorkes, merumuskan dimensi-dimensi panduan keselamatan dan merumuskan draft panduan keselamatan pembelajaran. Penelitian ini adalah merupakan tahap awal penelitian pengembangan berdasarkan analisis kebutuhan melalui studi pustaka, daftar isian dan kuesioner menggali persepsi dan pemahaman guru. Sampel penelitian adalah guru penjasorkes SMA yang ada di kabupaten Buleleng yang berjumlah 15 (12 SMA dan 3 SMK), pengolahan datanya menggunakan deskriptif kualitatif. Berdasarkan hasil dan pembahasan dapat disimpulkan bahwa: 1) Gambaran aspek keselamatan dalam pembelajaran penjasorkes telah tercermin tercermin pada perencanaan pembelajaran, teknik bantuan, pengelolaan kelas dan peralatan olahraga, 2) Dimensi- dimensi yang dibutuhkan dalam pembuatan buku panduan keselamatan pembelajaran penjasorkes; lingkungan tempat berolahraga, fasilitas dan peralatan pembelajaran, perencanaan pembelajaran, pengelolaan kelas, teknik bantuan, 3) Draft formar isi panduan keselamatan dalam pembelajaran penjasorkes dipandang sebagai hal baru yang harus dipenuhi oleh seluruh sekolah sehingga menjadi acuan/petunjuk praktis dalam melaksanakan pembelajaran penjasorkes yang aman.
Adoption Model of Falcataria-Based Farm Forestry: A Duration Analysis Approach
Authors: Irawan Evi 
Published: February 2017

Integrating perennial plant, such as Falcataria moluccana, in farming system can provide economic and environmental benefits, especially in marginal areas. Indonesian governments at all levels have been employing a number of efforts to speed-up adoption of tree planting on farm. However, the establishment of farm forestry on private land in Indonesia, especially in Java, is widely varied. While the farm forestry in some locations has been well adopted, the farmers or land users in other location are reluctant to adopt them, although the traits of farmers and farm land in both locations are similar. Most adoption studies have employed cross-sectional data in a static discrete choice modeling framework to analyze why some farmers adopt at a certain point in time. The static approach does not consider the dynamic environment in which the adoption decision is made and thus does not incorporate speed of adoption. The information of adoption speed of an innovation is important in designing extension policies as well as reengineering innovations in order to align with socio-economic conditions of the farmers. Based on data from a survey of a random sample of 117 smallholder households in Wonosobo Regency, Central Java, Indonesia, this study investigated determinants of time to adoption of farm forestry using duration analysis. Results revealed that factors that accelerate the adoption varied include age of household head, level of education of household head, off-farm employment and output price. Older farmers tend to adopt faster than the younger farmers. The other interesting findings are that off-farm employment and membership to farmers group are two most influential factors in speeding-up adoption of Falcataria-based farm forestry. The policy implications of this research are that government should design policies that promote farmers’ participation in off-farm income activities and strengthening farmer groups in addition to extension services and timber markets.
ANALISA PERBEDAAN ECO-FRIENDLY ATTITUDE DAN ECO-FRIENDLY INTENTION ANTARA TURIS LOKAL DAN TURIS ASING TERHADAP GREEN
Authors: Jokom Regina , Kristanti Monika 
Published: February 2017

The increasing concern for environmental degradation caused many people to pay more attention to theÂ green practice in the industry including hotel. Majority of hotel chains have adopted environmental programs andÂ labeled as green hotel.Â This study examines the significant differences between local tourist and foreign tourist regarding ecofriendlyÂ attitude and eco-friendly intention toward green hotel. Questionnaires were distributed to 120 localtourists and 120 foreign tourists In Juanda International Airport Surabaya. The study reveals that there areÂ significant differences in severity of environmental problems, intention to stay, intention to spread positive wordÂ of mouth, and intention to pay extra for green hotel between local and foreign tourist.Keywords: eco-friendly attitude, eco-friendly intention, green hotel, hospitality
PENGARUH KUALITAS AUDIT TERHADAP MANAJEMEN LABA MELALUI AKTIVITAS RIIL
Authors: Boedhi Nico Radityo , Ratnaningsih Dewi 
Published: February 2017

This study examines the impact of audit quality on Real Earnings Management (REM). Real earningsÂ management is defined as management actions that deviate from normal business practices, undertaken withthe primary objective of meeting certain earnings thresholds (Roychowdhury, 2006). One proxy is taken for realÂ earnings management, while abnormal operating cash flows and proxy for audit quality are taken as the size ofÂ audit firm. Research samples are selected from the population of manufacturing companies listed in Bursa EfekÂ Indonesia from year 2007 to 2011. Sample criteria is companies which have strong incentive to engage in realÂ earnings management and 126 companies are selected. Multiple Regression Model has been applied for dataÂ analysis. It is found that impact of audit quality on real earnings management is positive. This result concludesÂ that audit quality is not a warranty that a companyâ€™s financial statement is free from earnings management.Keywords: audit quality, earnings management, real earnings management, abnormal cash flow operation.