Essays about: "rotary drilling"

Found 4 essays containing the words rotary drilling.

  1. 1. A wear test mimicking the tribological situation in rock drilling

    University essay from Tillämpad materialvetenskap

    Author : Anna From; [2012]
    Keywords : tribological testing; wear test; cemented carbide; rock drilling;

    Abstract : This thesis work is performed at Sandvik Mining Rock Tools, a world leading supplier of rock drilling tools. The work is part of developing a new tribological wear test method for cemented carbide drill bit inserts. READ MORE

  3. 2. Tribological testing of rotary drill bit inserts

    University essay from Tillämpad materialvetenskap

    Author : Johan Wallin; [2012]
    Keywords : tribological testing; drill bit inserts; cemented carbides; rotary drilling;

    Abstract : The aim of this thesis work was to design and evaluate a wear test method for cemented carbides inserts used in rotary drilling. An appropriate in-house wear test method would provide a better understanding of the wear mechanisms limiting tool life in real drilling. READ MORE

  4. 3. Technical and Economical Analysis of Ground Source Heat Pump Systems with BHE in Poland

    University essay from KTH/Skolan för industriell teknik och management (ITM); KTH/Tillämpad termodynamik och kylteknik

    Author : Michal Wajman; [2011]
    Keywords : Ground Source Heat Pumps; Borehole Heat Exchanger;

    Abstract : Nowadays, Ground Source Heat Pumps (GSHPs) are more frequently acting as a main or the only device covering the building heat/cool demand. The most efficient way to extract/dissipate the low-temperature heat from/to the ground is by means of Borehole Heat Exchanger (BHE). READ MORE

  5. 4. IAS Water project in Sudan

    University essay from JTH, Byggnadsteknik

    Author : Samuel Johansson; [2007]
    Keywords : Vattenprojekt; vattenförsörjning; brunnsborrning; brunnar; Sudan; vatten; bistånd; NGO; hjälporganisation;

    Abstract : Northern Bahr el Ghazal area in southwestern part of Sudan was severely affected by the civil wars in Sudan. This has led to lacks of development in most areas, not least water supply. In combination with a high number of refugees returning to the area the water situation is very difficult. READ MORE