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2. Well control - Wikipedia

   en.wikipedia.org/wiki/Well_control

   the drilling and operating companies well control policies. For workover or completion operations, other methods are often used. Bullheading is a common way to kill a well during workovers and completions operations but is not often used while drilling. Reverse circulation is another kill method used for workovers that are not used for drilling ...

3. Oil well control - Wikipedia

   en.wikipedia.org/wiki/Oil_well_control

   IADC, headquartered in Houston, TX, is a nonprofit industry association that accredits well control training through a program called WellSharp, which is aimed at providing the necessary knowledge and practical skills critical to successful well control. This training comprises drilling and well servicing activities, as well as course levels ...

4. Distance education - Wikipedia

   en.wikipedia.org/wiki/Distance_education

   SPOCs (Small Private Online Courses): Online course that only offers a limited number of places and therefore requires some form of formal enrollment; SMOCs (Synchronous Massive Online Courses): Open-access online course that allows for unlimited participation but requires students to be "present" at the same time (synchronously);

5. Completion (oil and gas wells) - Wikipedia

   en.wikipedia.org/wiki/Completion_(oil_and_gas_wells)

   The tubing may also have flow control mechanism. Single-well concentric kill string: within the well a small diameter concentric kill string is used to circulate kill fluids when needed. Single-well 2-tubing completion: in this instance 2 tubing strings are inserted down 1 well. They are connected at the lower end by a circulating head.

6. Massive open online course - Wikipedia

   en.wikipedia.org/wiki/Massive_open_online_course

   Providers can charge employers for recruiting its students. Students may be able to pay to take a proctored exam to earn transfer credit at a degree-granting university, or for certificates of completion. [152] Udemy allows teachers to sell online courses, with the course creators keeping 70–85% of the proceeds and intellectual property ...

7. Coursera - Wikipedia

   en.wikipedia.org/wiki/Coursera

   A free course can be "upgraded" to the paid version of a course, which includes instructor's feedback and grades for the submitted assignments, and (if the student gets a passing grade) a certificate of completion. [57] [60] Other Coursera courses, projects, specializations, etc. cannot be audited—they are only available in paid versions ...