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62. 实用新型

JPS5629715Y2 失效
公开(公告)号：JPS5629715Y2
公开(公告)日：1981-07-15
申请号：JP11893976
申请日：1976-09-03
IPC分类号： G01V9/02 , E02D1/06 , E02D31/02 , E03B3/00 , E03B3/08 , E21B47/10 , E21B49/00 , E21B49/08 , G01N1/10 , G01N1/12

63. 发明专利

JPS5676030A COLLECTING DEVICE OF MUDDY WATER AND SLUDGE 失效
公开(公告)号：JPS5676030A
公开(公告)日：1981-06-23
申请号：JP15339079
申请日：1979-11-27
申请人： SHIMIZU CONSTRUCTION CO LTD
发明人： HORIUCHI SUMIO
IPC分类号： E21B49/02 , E21B49/00 , E21B49/08 , G01N1/10
摘要： PURPOSE:To obtain a collecting device with a simple constitution and easy to handle by a method wherein a flexible cylindrical sheet member is installed at collecting ports of two pipes having different diameters and interlocking with each other so that each collecting port may be closed by those relative rotation. CONSTITUTION:Two pipes 10, 11 having different diameters are interlocked so as to rotate in a relatively free way. At collecting ports 10, 11 of these two pipes, the both end opening parts of a cylindrical closing member 13 consisting of a flexible sheet closing each collecting port being throttled by the relative rotation of those pipes are installed, respectively. Accordingly, when a continuous sampling from a liquid level is performed, pipes 10, 11 are inserted up to the given depth keeping the closing member 13 in an opened state and pipes 10 and 11 are rotated mutually to a reverse direction to throttle the closing member 13. The pipes are pulled up while keeping said state and muddy water is collected from the inside of an inner pipe 11. In this way, a collecting device having a simple constitution and easy to handle is obtained.

64. 发明专利

JPS56500382A 失效
公开(公告)号：JPS56500382A
公开(公告)日：1981-03-26
申请号：JP50015679
申请日：1979-11-28
IPC分类号： E21B21/08 , E21B47/00 , E21B47/10 , E21B49/00
摘要： PCT No. PCT/SU79/00118 Sec. 371 Date Nov. 27, 1980 Sec. 102(e) Date Nov. 25, 1980 PCT Filed Nov. 28, 1979 PCT Pub. No. WO80/02053 PCT Pub. Date Oct. 2, 1980.A method of continuously logging a borehole in the course of drilling with the use of a drilling mud. According to the invention, the drilling mud fed into the borehole is subjected to unipolar electric treatment, with simultaneous measurement of the oxidation-reduction potential of the drilling mud. This value is maintained substantially constant at a given magnitude. The value of the oxidation-reduction potential of the drilling mud returning from the borehole is continuously measured and compared with the given value of the oxidation-reduction potential of the drilling mud fed into the borehole. Using the difference between the two values, the mineralogic composition of the rock adjacent to the bottom of the hole is determined for a given moment, by comparing this difference with the known in advance normal oxidation-reduction potentials of minerals.

66. 实用新型

JPS5335904U 失效
公开(公告)号：JPS5335904U
公开(公告)日：1978-03-29
申请号：JP11893976
申请日：1976-09-03
IPC分类号： G01V9/02 , E02D1/06 , E02D31/02 , E03B3/00 , E03B3/08 , E21B47/10 , E21B49/00 , E21B49/08 , G01N1/10 , G01N1/12

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