Available online
Description
This programme examines techniques for collecting data by drilling boreholes and how the data obtained is interpreted, particularly from the viewpoint of the petroleum engineer.
This programme examines techniques for collecting data by drilling boreholes and how the data obtained is interpreted, particularly from the viewpoint of the petroleum engineer.
| Module code and title: | S333, Earth science topics and methods |
|---|---|
| Item code: | S333; 07 |
| First transmission date: | 16-05-1976 |
| Published: | 1976 |
| Rights Statement: | |
| Restrictions on use: | |
| Duration: | 00:24:00 |
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| Producer: | Neil Cleminson |
| Contributors: | Chris Wilson; Roger Woodhouse |
| Publisher: | BBC Open University |
| Keyword(s): | Animation; Core samples; Detector; Electrical conductivity; Flux of gamma rays; Geiger counter; Porous rock; Rock density; Sample page; Sand/liquid preparations |
| Footage description: | Chris Wilson introduces the programme. He looks at several core samples and explains why cores are taken only for specific purpose. Wilson, in the studio with a borehole drill bit, points out its components and then explains how it works. An animation shows the drill bit at work. Wilson shows more specimens from a borehole. He explains the job of the borehole mud logger and shows a sample page from a log. Wilson, with a geiger counter, measures the natural radio-activity of several rock specimen. He explains how this technique can be used to analyse rocks in a borehole at depth. Wilson goes on to demonstrate and explain a technique which measures the electrical conductivity of porous rock. He demonstrates in the studio by placing an instrument into several sand/liquid preparations. Wilson points out the value of this technique for the petroleum engineer. Richard Woodhouse in the studio with a drill sonde. This particular instrument measures rock density by a flux of gamma rays which are back scattered to a detector. Woodhouse points out the components of the sonde as he explains its function. Woodhouse next looks at a sonde which detects natural gamma radiation. He explains how the apparatus works as he points out its component parts. Woodhouse briefly looks at one other attachment for the sonde, a sonic tool. Chris Wilson explains the need to measure the orientation of strata down a borehole. He explains and demonstrates, using models, how such an instrument works. Richard Woodhouse examines part of the record of a borehole log which is made up of a density log, a neutron log, a gamma ray log and a borehole diameter log. He explains how the data is analysed and how a petroleum engineer uses the data on such records to make interpretations of hydrocarbon content. |
| Master spool number: | 6HT/72056 |
| Production number: | FOU1525P |
| Videofinder number: | 1998 |
| Available to public: | no |
