Measuring and testing – Sampler – sample handling – etc. – Capture device
Patent
1991-04-12
1993-02-02
Myracle, Jerry W.
Measuring and testing
Sampler, sample handling, etc.
Capture device
138104, E21B 4902
Patent
active
051829541
ABSTRACT:
Described is an inner tube element for use in a double tube device for taking soil samples during drilling operation (coring), the inner tube element comprising distinguishable end parts which are connected by a tube member of fiber reinforced plastic. According to the invention such tube member is provided with an orientation marking over its whole length and at least covered by a thin layer of plastic. An attractive embodiment of such marking are parallel lines of different color. Also is described a method for producing an inner tube element by forming a tube member between two differing end parts by winding fiber material which is impregnated with hardenable synthetic resin and hardening the tube member then formed. According to the invention a material in strip form and bearing an appropriate orientation marking is incorporated during the forming of such tube member.
REFERENCES:
patent: 3092192 (1963-06-01), Deely
patent: 3343568 (1967-09-01), Branscum et al.
patent: 3450216 (1969-04-01), Hugel et al.
patent: 4428602 (1984-01-01), Lambot et al.
patent: 4911001 (1990-03-01), Ferguson
Oil & Gas Journal, vol. 82, No. 51, Dec. 1984, pp. 118-120, "How to Recover, Label, and Evaluate Fractured Core", by J. T. Kirkland, Tulsa, Okla.
Myracle Jerry W.
Wavin B.V.
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