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Wielofunkcyjny symulator procesu wiercenia

Uliasz Małgorzata, Zima Grzegorz, Jasiński Bartłomiej, Błaż Sławomir

Wiadomości Naftowe i Gazownicze

2022

R. 25, Nr 4-5 (280)

6-11

W artykule przedstawiono przykłady zastosowania aparatu Grace M2200 HPHT do badań płuczek wiertniczych w warunkach zbliżonych do otworowych. Aparat ten jest wielofunkcyjnym symulatorem procesu wiercenia, który umożliwia przeprowadzenie pomiaru smarności w środowisku płuczki na kontakcie metal - metal i metal - skała, filtracji dynamicznej płuczek wiertniczych przez ścianę otworu oraz pomiar szybkości wiercenia w rzeczywistych próbkach skał przy pomocy miniaturowego świdra wiertniczego w symulowanych warunkach otworowych. Istnieje możliwość symulowania warunków otworowych dzięki dużemu zakresowi temperatury roboczej (do 260°C) oraz ciśnienia (do 13,8 MPa). Obsługa urządzenia odbywa się przy użyciu oprogramowania komputerowego M2200 PC. Przedstawiono wybrane wyniki pomiarów filtracji i właściwości smarnych przykładowych płuczek wiertniczych a także szybkości wiercenia. Wyniki uzyskane na aparacie Grace porównano z wynikami pomiaru filtracji na prasie filtracyjnej w warunkach statycznych i dynamicznych oraz z pomiarami współczynnika tarcia na aparacie Fann. Badania prowadzone na aparacie Grace M2200 HPHT ułatwią wdrożenie do praktyki przemysłowej nowych rodzajów środków chemicznych do regulowania filtracji i właściwości smarnych płuczek wiertniczych w trudnych warunkach geologicznych. Umożliwią również rozbudowanie dotychczasowej metodyki badawczej pozwalającej na kompleksową analizę właściwości cieczy wiertniczych.

The article presents examples of use the Grace M2200 HPHT apparatus for testing drilling fluids in simulated borehole conditions. This device is a multifunctional drilling process simulator that allows to measure the lubricity of drilling fluid on the metal-metal or metal-rock contact, dynamic filtration of drilling fluids through the wall of the borehole and measurement of the drilling rate in real rock samples using a miniature drill bit in simulated borehole conditions. It is possible to simulate the borehole conditions thanks to the wide range of operating temperature (up to 260°C) and pressure (up to 13,8 MPa). The device is operated using the M2200 PC software. Selected results of measurements of filtration and lubricating properties of exemplary drilling fluids as well as drilling rate are presented. The results obtained on the Grace apparatus were compared with the results of filtration measurements on the filter press under static and dynamic conditions and with the measurements of the friction coefficient on the Fann apparatus. Research conducted on the Grace M2200 HPHT apparatus will facilitate the implementation into industrial practice of new types of chemical agents to control the filtration and lubricating properties of drilling fluids in difficult geological conditions. They will expand the existing research methodology, allowing for a comprehensive analysis of drilling fluids properties.

Reducing dangerous waste by applying low-waste technologies

Mijanović K.

Journal of Achievements in Materials and Manufacturing Engineering

2008

Vol. 29, nr 2

195-198

Purpose: Growing level of automatism, information technologies and other technological achievements on the one hand and unadjusted production companies in Bosnia and Herzegovina on the other, impose a need for new knowledge from the aspect of adaptability and increasing eco-efficiency of production systems. Engineers face the problems of growing trends of change in the area of technology, organization, decision making process and management of production systems. Changes cause searching for new solutions, and solutions demand innovative action in changed conditions. New and innovated technologies, also wide appliance of recycle procedures of waste materials and their further use, will lead to appliance of new production principle "production-consumer-waste-recycle-entrance", which demands a need for new knowledge connected with relationship between production system and environment. For production systems, strategy of Cleaner Production is primarily applied to reducing pressure during whole cycle of production and services, from design and use to the final disposal. Design/methodology/approach: This work will show how dangerous and toxic waste can be controlled and reduced by using principles of "Cleaner Production", as well as how that task will be transferred to the lower level of managers, who should predict, plan, manage and control the market. Using control of quantity and quality of raw materials, parameters of workability and reduction of waste risk materials can be influenced. The factory producing tools planned and carried out an experiment with the purpose of substitution of the mineral oils for cutting. That experiment has been carried out by the mathematic apparatus „Box-Wilson” with the usage of two-factor plan of the experiment. Findings: Experiment showed that it is possible to use synthetic oils for cutting in certain intervals of work. Synthetic oils are biodegradable thus they have lesser pressure to the environment. Research limitations/implications: This work justifies possibilities of innovative action in the EMS functioning. Technologist can make plans, with permanent goal of achieving higher eco-efficiency only in the conditions of use that have been already explored. Practical implications: There are implications with the need of researching conditions, and with processing of increased demands for the quality. Every problem needs to be approached in a experimental way and confirm the assumption. Originality/value: This work is original in observed conditions of usage and with the usage of given approach in the research. It is confirmed that that synthetic oils for cuttings can be substituted by mineral oils and in that way increase eco-efficiency.