Research of model tests of parameters move-ment of the goat crane under action of load loads

The results of experimental researches of parameters of movement of the model of the gantry crane under the influence of wind loadings are resulted. The assessment of the accuracy and reliability of the obtained results is performed and further directions of research are outlined. The adopted test program included the definition of similarity criteria and scale of the model, where the main parameter was the speed of the crane when exposed to wind. The influence of various factors and assessment of the impact of their interaction was achieved by conducting PFE type 24.

Remote Activated Completion Technology Enhances Operational Efficiency of Offshore Wells in Middle East

To access a larger amount of pay zone, well trajectories are becoming longer and more complex, creating greater challenges for running completion liners. A liner shoe is a casing accessory tool that aids in the running of completion liners in long wells by allowing auto-filling of the liner and enabling pumping through the bottom of the liner. Upon reaching planned liner depth, the liner shoe is closed to allow for pressure testing and subsequent completion operations. Conventional methods used to close a liner shoe involve well intervention to set plugs or by dropping a ball, and there are inherent costs and risks associated with these operations. This paper presents the development and deployment of a remotely activated electronic liner shoe (ELS) for offshore applications that enables interventionless closing of the liner shoe, thereby improving operational efficiency, and reducing potential operational issues that could occur while closing the liner shoe conventionally. The ELS allows the operator to precisely control when the liner shoe closes – either based on pre-programmed pressure signals, a timer, or a combination of the two. A major operator in the Middle East required an ELS to be developed and qualified specifically for their offshore well conditions. A new technology qualification program was devised in collaboration with the operator to qualify both the electronic and mechanical functionalities of the tool. This paper documents the methods and results of the extensive qualification test program. The development and qualification process were successfully completed within 10 months at research and development facilities in Norway. Following qualification testing, the ELS was first deployed for the operator in an offshore well in Q4 of 2019. Operational considerations in programming the remote functionality of the tool is presented in this paper. After a successful field trial, the ELS has been run in more than 15 offshore wells and has become the standard option in the operator's completion program.

Bringing New Levels of Automation and Flexibility to Well Testing Operations — Case Study

The oil industry has been perpetually examining well testing methods, with the goal of improving overall efficiency, ensuring data quality, and streamlining processes to achieve program objectives. Over the years, the aim of drillstem testing (DST) has remained mostly unchanged. However, operators want to meet the forecasted production investments of their fields, while improving operational efficiency and maintaining the highest level of operational standards, with safety and the environment being paramount. One of the solutions was developing a live, downhole, reservoir testing platform. The breakthrough consisted in introducing automation and real time monitoring to adjust the test program according to the actual reservoir response rather than blindly following a predefined test program, necessitating better operational flexibility. This platform is united by a wireless telemetry technology allowing an acoustic communication with downhole tools in real time. The automation of the data acquisition, downhole tools actuation and real time monitoring of the downhole operations, gives the operators the ability to perform well tests with reduced uncertainties, less human intervention and improved data quality. The early availability of reservoir knowledge enables operational efficiencies by meeting the test objectives earlier, thus reducing significantly the overall test period and the associated well testing costs. This paper describes the common well test objectives and challenges, the overall design of the wireless telemetry system, and automation of the job preparation and execution of the downhole operations that led to the successful completion of the well test campaign in very hostile condition, remote areas and restricted period. The use of the telemetry system in several well testing campaigns in different regions of the world, allowed to control critical downhole equipment and to acquire reservoir data transmittable to the clients office in town in real time. Various operation examples will be discussed to demonstrate how the automated data acquisition and downhole operations control has been used to optimize operations.

Hubungan Sikap Asertif Dan Rasa Malu Terhadap Perilaku Anti Korupsi Pada Remaja

Penelitian ini bertujuan untuk mengetahui dan menguji secara empiris hubungan antara sikap asertiif dan rasa malu terhadap perilaku anti korupsi pada remaja. Subjek yang terlibat dalam penelitian ini adalah remaja berjenis kelamin laki-laki dan perempuan dengan rentang usia 13 hingga 18 tahun. Penelitian ini menggunakan tiga skala yaitu skala sikap asertif (35 aitem, α= 0.793), skala kedua adalah skala rasa malu (16 aitem, α= 0.794). Alat ukur yang ketiga adalah kuesioner yang digunakan oleh Badan Pusat Statistik saat survey pengukuran indeks perilaku anti korupsi (IPAK) tahun 2012 (20 aitem, α= 0.771). Skala dan kuesioner dimodifikasi oleh peneliti menyesuaikan karakteristik subjek. Pemilihan subjek dilakukan dengan cara purposive sampling. Analisis data dilakukan dengan uji regresi linier berganda dan uji tambahan menggunakan independent sample t-test program IBM SPSS 20.0 realease for Windows. Hasil analisis regresi berganda dilakukan untuk menguji hubungan antara tiga variabel penelitian, yaitu sikap asertif dan rasa malu terhadap perilaku anti korupsi memiliki hubungan yang positif terhadap perilaku anti korupsi pada remaja (B= 2. 618, p= 0.008). Hasil analisis regresi sederhana menunjukkan hubungan sikap asertif dan perilaku anti korupsi memiliki hubungan positif (B= 2.223 , p= 0.03) dan hasil analisis regresi menunjukkan hubungan rasa malu dan perilaku anti korupsi memiliki hubungan positif (B=0.99, p= 0.04). Analisis tambahan untuk melihat pengaruuh jenis kelamin terhadap masing-masing variabel menunjukkan bahwa ada perbedaan sikap asertif, rasa malu dan perilaku anti korupsi berdasarkan jenis kelamin, sedangkan berdasarkan tingkat pendidikan tidak memiliki perbedaan. Hasil penelitian ini menunjukkan bahwa untuk meningkatkan perilaku anti korupsi tidak hanya dibutuhkan sikap asertif saja namun juga rasa malu terhadap perilaku tidak bermoral juga sangat dibutuhkan.

Compressibility and consolidation properties of Santos soft clay near Barnabé Island

A geotechnical study based on characterization tests and seventy incremental loading onedimensional consolidation tests was carried out on high-quality undisturbed samples taken from Santos Harbor Channel subsoil near to Barnabé Island, where a pilot embankment was built. The characterization profiles revealed a stratigraphy following the pattern described by Massad (2009), with a 9 m-thick fluvial-lagoon-bay sediments (SFL) clay layer. The consolidation tests were performed following two loading criteria. In criterion A (series one tests), a new loading was applied whenever the strain rate (ε) reached 10-6 s-1, the highest integer power of 10 after the “end of primary” consolidation for double drained 2 cm-thick specimens. In criterion B (series two tests), the standard procedure of 24 hour-long stages was adopted. Criterion A reduced the total duration of the consolidation tests from ten to about three days. The preconsolidation (yield) stress (σ’p) and the compressibility parameters Cc and Cr obtained from “e versus σ’v (log)” compression curves of all tests are provided. Series two tests showed that the 24-hour “e versus σ’v (log)” compression curves are translated to the left of the ε = 10-6 s-1 “e versus σ’v (log)” compression curves, keeping Cr and Cc average values unchanged, but decreasing σ’p by about 8%. The SFL clay Cc/(1+e0) values obtained herein are higher than those presented by Massad (2009) due to the higher-quality samples tested in this study. It is shown that it is feasible to carry out a high-quality laboratory test program for design purposes following current standards.

Full-Scale Blast Tests on a Conventionally Designed Three-Story Steel Braced Frame with Composite Floor Slabs

This paper summarizes the findings of two full-scale blasts tests on a steel braced frame structure with composite floor slabs, which are representative of a typical office building. The aim of this research study was to experimentally characterize the behavior of conventionally designed steel braced frames to blast loads when enclosed with conventional and blast-resistant façade. The two tests involved a three-story, steel braced frame with concentrical steel braces, which are designed to resist typical gravity and wind loads without design provisions for blast or earthquake loads. During the first blast test, the structure was enclosed with a typical, non-blast-resistant, curtainwall façade, and the steel frame sustained minimal damage. For the second blast test, the structure was enclosed with a blast-resistant façade, which resulted in higher damage levels with some brace connections rupturing, but the building did not collapse. Observations from the test program indicate the appreciable reserved capacity of steel brace frame structures to resist blast loads.

Development of the Test Bed for Experimental Investigation of Autonomous Current Supply System

The test bed is intended for investigations of autonomous current supply system and its individual units and testing of the correspondence of the system to the demands of the wind power alternator with high-temperature superconductive field winding. The test bed configuration is based on module principles thus accelerating the adapting of experimental equipment for quite definite tasks. The test bed contains serial equipment and a number of units specially developed for the definite test program. Some of specially developed modules are presented in the paper.

Ways of improving the method of control of coordination preparation of young athletes in playing sports

Today, there is a further increase in the demands for the effectiveness of competitive activities of athletes in playing sports. This, in turn, requires improving the individual skills of players. The factor of «technical-coordination» is one and the most important for achieving high sports results in sports games. Analysis of the scientific literature shows that there are no uniform standardized criteria for assessing the coordination abilities of young athletes. In the training process of representatives of play sports, mainly comprehensive tests are used to evaluate coordination preparedness, in which it is very difficult to assess the degree to which some form of coordination capability has been developed. When designing a test program to assess the coordination skills of players, it is necessary to rely on tests that assess the types of coordination abilities that are most relevant to a particular sport specialization. Given the difficulty of using instrumentation methods to study the coordination of movements in the daily training activities of players, motor tests continue to be the main way to assess the coordination abilities of young athletes in playing sports. This requires further improvement in their informativeness and reliability.

Optimal Reduction in the Number of Test Vectors for Soft Processor Cores Implemented in FPGA

Testing FPGA-based soft processor cores requires a completely different methodology in comparison to standard processors. The stuck-at fault model is insufficient, as the logic is implemented by lookup tables (LUTs) in FPGA, and this SRAM-based LUT memory is vulnerable to single-event upset (SEU) mainly caused by cosmic radiations. Consequently, in this paper, we used combined SEU-induced and stuck-at fault models to simulate every possible fault. The test program written in an assembler was based on the bijective property. Furthermore, the fault detection matrix was determined, and this matrix describes the detectability of every fault by every test vector. The major novelty of this paper is the optimal reduction in the number of required test vectors in such a way that fault coverage is not reduced. Furthermore, this paper also studied the optimal selection of test vectors when only 95% maximal fault coverage is acceptable; in such a case, only three test vectors are required. Further, local and global test vector selection is also described.