Casing thread gauges are measuring tools for checking connection threads of oil casing and couplings. Based on the type of oil casing, the gauges are classified into round thread of casing (CSG) and buttress thread of casing (BCSG).
TECHNICAL PARAMETER
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套管圆螺纹量规 Round Thread Casing |
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规格 Specification in(mm) |
扣数 Number of Threads/in(螺距Pitch) |
锥 度 Taper（in/ft） |
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4 1/2(114.3) |
8(3.175) |
1:16(3/4) |
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5(127.0) |
8(3.175) |
1:16(3/4) |
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5 1/2139.7) |
8(3.175) |
1:16(3/4) |
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6 5/8(168.3) |
8(3.175) |
1:16(3/4) |
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7(177.8) |
8(3.175) |
1:16(3/4) |
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7 5/8(193.7) |
8(3.175) |
1:16(3/4) |
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8 5/8(219.1) |
8(3.175) |
1:16(3/4) |
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9 5/8(244.5) |
8(3.175) |
1:16(3/4) |
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10 3/4(237.1) |
8(3.175) |
1:16(3/4) |
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11 3/4(298.5) |
8(3.175) |
1:16(3/4) |
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13 3/8(339.7) |
8(3.175) |
1:16(3/4) |
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16(406.4) |
8(3.175) |
1:16(3/4) |
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18 5/8(473.1) |
8(3.175) |
1:16(3/4) |
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20(508.0) |
8(3.175) |
1:16(3/4) |
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套管偏梯形螺纹量规 Buttress Thread Casing |
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规格 Specification in(mm) |
扣数 Number of threads/in(螺距Pitch) |
锥 度 Taper（in/ft） |
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4 1/2(114.7) |
5(5.08) |
1:16(3/4) |
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5(127.4) |
5(5.08) |
1:16(3/4) |
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5 1/2(140.1) |
5(5.08) |
1:16(3/4) |
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6 5/8(168.7) |
5(5.08) |
1:16(3/4) |
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7(178.2) |
5(5.08) |
1:16(3/4) |
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7 5/8(194.1) |
5(5.08) |
1:16(3/4) |
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8 5/8(219.5) |
5(5.08) |
1:16(3/4) |
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9 5/8(244.9) |
5(5.08) |
1:16(3/4) |
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10 3/4(273.5) |
5(5.08) |
1:16(3/4) |
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11 3/4(298.9) |
5(5.08) |
1:16(3/4) |
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13 3/8(340.1) |
5(5.08) |
1:16(3/4) |
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16(406.4) |
5(5.08) |
1:12(1) |
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18 5/8(473.1) |
5(5.08) |
1:12(1) |
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20(508.0) |
5(5.08) |
1:12(1) |
TECHNICAL PARAMETERS OF SELF-LOCKING CORING GAUGES
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外筒取芯螺纹量规 External Barrel Coring |
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规格 Specification in(mm) |
扣数 Number of threads/in(螺距Pitch) |
锥 度 Taper（in/ft） |
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OQ×121 |
6(4.233) |
1:16(3/4) |
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OQ×133 |
6(4.233) |
1:16(3/4) |
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OQ×146 |
6(4.233) |
1:16(3/4) |
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OQ×172 |
6(4.233) |
1:16(3/4) |
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OQ×180 |
6(4.233) |
1:16(3/4) |
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OQ×194 |
6(4.233) |
1:16(3/4) |
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内筒取芯螺纹量规 Internal Barrel Coring |
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规格 Specification in(mm) |
扣数 Number of threads/in(螺距Pitch) |
锥 度 Taper（in/ft） |
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OQ×85 |
8(3.175) |
1:16(3/4) |
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OQ×88.9 |
8(3.175) |
1:16(3/4) |
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OQ×101.6 |
8(3.175) |
1:16(3/4) |
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OQ×121 |
8(3.175) |
1:16(3/4) |
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OQ×127 |
8(3.175) |
1:16(3/4) |
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OQ×139.7 |
8(3.175) |
1:16(3/4) |
