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[\/et_pb_text][et_pb_image src=”https:\/\/www.solinst.com\/wp-content\/uploads\/2024\/11\/403-cmt-multilevel-system-uncoil-tubing-.webp” alt=”figure 3 solinst cmt multilevel system tubing” title_text=”Figure 3 – Solinst CMT Multilevel System Tubing” align=”center” _builder_version=”4.27.2″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][et_pb_text _builder_version=”4.27.2″ _module_preset=”default” global_colors_info=”{}”]<\/p>\n
Figure 3 – Solinst CMT Multilevel System Tubing<\/em><\/p>\n[\/et_pb_text][et_pb_text _builder_version=”4.27.2″ _module_preset=”default” global_colors_info=”{}”]<\/p>\n
Step 2) Indicate Ground Surface on Tubing<\/h2>\n
Allowing for your desired wellhead stick-up (2-3 feet above ground surface), place the end of the measuring tape below the length of tubing you want above ground. This is your measuring point, which represents the ground surface, and all depths below this point use depths below ground surface. <\/p>\n
[\/et_pb_text][et_pb_image src=”https:\/\/www.solinst.com\/wp-content\/uploads\/2024\/11\/403-cmt-indicate-ground-surface.webp” alt=”indicating ground surface measurement along cmt multichannel tubing” title_text=”Indicating Ground Surface Measurement Along CMT Multichannel Tubing” align=”center” _builder_version=”4.27.2″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][et_pb_text _builder_version=”4.27.2″ _module_preset=”default” global_colors_info=”{}”]<\/p>\n
Figure 4<\/em><\/p>\n[\/et_pb_text][et_pb_text _builder_version=”4.27.2″ _module_preset=”default” global_colors_info=”{}”]<\/p>\n
Step 3) Locate Channel 1 Identifier<\/h2>\n
The next step is to make marks on the CMT tubing at the depths corresponding to the midpoint of the desired monitoring ports. Before you do this, you will note that there is a faint channel identifier, a low-profile repetitive marking “<< CMT >>” that runs along the entire length of the CMT tubing opposite one of the outer channels. This channel identifier facilitates identification of the various internal channels anywhere along the length of the tubing. The channel that has the identifier is always Channel 1. By convention, Channel 1 corresponds to the shallowest monitoring zone. The other five outer channels are numbered clockwise from 2 through 6 as you are looking down on the completed well from above. The centre channel is Channel 7 and is always the deepest monitoring zone. <\/p>\n
[\/et_pb_text][et_pb_text _builder_version=”4.27.4″ _module_preset=”e910b435-fe18-45d2-b351-bda808b1a267″ hover_enabled=”0″ border_width_all=”1px” border_color_all=”rgba(0,0,0,0.23)” global_colors_info=”{}” sticky_enabled=”0″]<\/p>\n
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Note: <\/strong><\/h3>\n\n
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The channel identifier on the CMT tubing is intentionally subtle to avoid being a conduit for vertical leakage.<\/p>\n<\/div>\n<\/div>\n
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[\/et_pb_text][et_pb_text _builder_version=”4.27.2″ _module_preset=”default” global_colors_info=”{}”]<\/p>\n
Step 4) Mark Monitoring Port 1<\/h2>\n
Make a mark across Channel 1 (Figure 5) on the exterior of the CMT tubing at the depth corresponding to the centre of the uppermost monitored port (23 feet below ground surface in our hypothetical example; Table 1). A permanent marker or a “China marker” wax pencil works well for this. Write “Port 1″ on the CMT tubing about 6” above the mark. <\/p>\n
[\/et_pb_text][et_pb_image src=”https:\/\/www.solinst.com\/wp-content\/uploads\/2024\/11\/403-cmt-mark-monitoring-port.webp” alt=”figure 5 marking cmt tubing” title_text=”Figure 5 – Marking CMT Tubing” align=”center” _builder_version=”4.27.2″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][et_pb_text _builder_version=”4.27.2″ _module_preset=”default” global_colors_info=”{}”]<\/p>\n
Figure 5 – Marking CMT Tubing<\/em><\/p>\n[\/et_pb_text][et_pb_text _builder_version=”4.27.4″ _module_preset=”e910b435-fe18-45d2-b351-bda808b1a267″ hover_enabled=”0″ border_width_all=”1px” border_color_all=”rgba(0,0,0,0.23)” global_colors_info=”{}” sticky_enabled=”0″]<\/p>\n
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Note: <\/strong><\/h3>\n\n
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The Channel 1 identifier is a low-profile repetitive marking<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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[\/et_pb_text][et_pb_text _builder_version=”4.27.2″ _module_preset=”default” global_colors_info=”{}”]<\/p>\n
Step 5) Mark Port 1 for Port Cutting Guide<\/h2>\n
Next, draw a line along the Channel 1 identifier (i.e., parallel with the tubing) extending approximately 6″ above and 6″ below the depth mark (Figure 6). You will use this line (and other similar lines drawn at the other port depths) to index the Port Cutting Guide. This ensures that you cut holes only in the intended channels corresponding to the desired monitoring zones (as shown in Table 1). <\/p>\n
[\/et_pb_text][et_pb_image src=”https:\/\/www.solinst.com\/wp-content\/uploads\/2024\/11\/403-cmt-mark-port-cutting-guide.webp” alt=”figure 6 cmt port marking setup” title_text=”Figure 6 – CMT Port Marking Setup” align=”center” _builder_version=”4.27.2″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][et_pb_text _builder_version=”4.27.2″ _module_preset=”default” global_colors_info=”{}”]<\/p>\n
Figure 6 – CMT Port Marking Setup<\/em><\/p>\n[\/et_pb_text][et_pb_text _builder_version=”4.27.4″ _module_preset=”e910b435-fe18-45d2-b351-bda808b1a267″ hover_enabled=”0″ border_width_all=”1px” border_color_all=”rgba(0,0,0,0.23)” global_colors_info=”{}” sticky_enabled=”0″]<\/p>\n
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Note: <\/strong><\/h3>\n\n
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The next series of instructions use hand tools and materials that are sharp. Use proper protective equipment. Work safely. <\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n <\/p>\n<\/div>\n<\/div>\n
[\/et_pb_text][et_pb_text _builder_version=”4.27.2″ _module_preset=”default” global_colors_info=”{}”]<\/p>\n
Step 6) Mark all Ports and Cut Tubing at Deepest Port<\/h2>\n
Make similar marks at the depths corresponding to the next five monitoring zones (i.e., 34, 48, 55, 69, and 77 feet below ground surface). Make the marks identical to the ones you drew at Port 1. That is, draw the depth mark across Channel 1 and draw the longitudinal line along the Channel 1 identifier. The Port Cutting Guide has been indexed so that it always references the Channel 1 identifier when it is used to cut holes in the five other outer channels. Label these depth marks as Port 2, Port 3, etc., about 6″ above each mark. Finally, make a mark at the depth of the deepest monitoring port (i.e., the internal channel, Port 7), which is also the bottom of the well, at 92 feet. Cut the CMT tubing at this mark using a hacksaw, sharp knife, or PVC cutter.<\/p>\n
[\/et_pb_text][et_pb_image src=”https:\/\/www.solinst.com\/wp-content\/uploads\/2024\/11\/fig4-cutting-cmt-tubing.webp” alt=”figure 7 cutting the cmt multichannel tubing” title_text=”Figure 7 – Cutting the CMT Multichannel Tubing” align=”center” _builder_version=”4.27.2″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][et_pb_text _builder_version=”4.27.2″ _module_preset=”default” global_colors_info=”{}”]<\/p>\n
Figure 7 – Cutting the CMT Multichannel Tubing<\/em><\/p>\n[\/et_pb_text][et_pb_text _builder_version=”4.27.2″ _module_preset=”default” global_colors_info=”{}”]<\/p>\n
Step 7) Complete Design<\/h2>\n
The design of the well has now been transferred to the CMT tubing<\/p>\n
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