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US 10,854,354 B2Granted
Downhole cables and methods of making the same
AssigneeSchlumberger Technology Corporation
InventorsJoseph Varkey, Sheng Chang, Burcu Unal Altintas, Qingdi Huang, Jeffrey Joseph Kamps, Paul Wanjau
Life of this patent
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Abstract
A method and method of using a cable that includes a cable core. The cable core has an inner armor wire layer disposed thereabout. The inner armor wire layer has an outer armor wire layer disposed thereabout. The inner armor wire layer and outer armor wire layer have torque removed therefrom during manufacturing.
Claims15
A method of manufacturing a cable, wherein the method comprises:
- disposing an inner armor wire layer about a cable core;
- disposing an outer armor wire layer about the inner armor wire layer, forming the cable, wherein the cable is stretched and then has tension therein reduced as the cable is spooled onto a stretched cable drum, and wherein torque in the armor wire layers is removed during manufacturing by placing the stretched cable drum on a twister, and wherein (a) the stretched cable passes from the stretched cable drum to a swivel sheave, from the swivel sheave to an intermediate sheave, and (b) the twister twists the cable until the swivel sheave aligns with the intermediate sheave, and then additional cable is spooled from the stretched cable drum, and wherein the foregoing (a) and (b) are repeated until any residual torque is removed from the cable.
A method of running a tool into a wellbore, wherein the method comprises:
- connecting a downhole tool with a cable, wherein the cable is manufactured by:
- disposing an inner armor wire layer about a cable core;
- locking the inner armor wire layer in place using a polymer located about the cable core;
- disposing an outer armor wire layer about the inner armor wire layer, forming the cable;
- stretching the cable;
- passing the cable from an initial drum through a first capstan;
- passing the cable through a second capstan, wherein tension is applied to the cable by the two capstans, and tension is reduced as the cable exits the second capstan;
- spooling the cable on a stretched cable drum;
- reducing tension in the cable;
- removing torque from the cable;
- spooling the cable from the stretched cable drum to a swivel sheave, wherein the stretched cable drum is configured to rotate as the cable is spooled therefrom to remove torque from the cable;
- passing the cable from the swivel sheave to an intermediate sheave;
- passing the cable from the intermediate sheave to a third capstan;
- passing the cable from the third capstan to an additional turn around sheave;
- and
- passing the cable to a seasoned cable drum.
13 more elements
A method of manufacturing a cable, wherein the method comprises:
- cabling an inner armor wire layer about a cable core;
- locking the inner armor wire layer in place;
- cabling an outer armor wire layer about the inner armor wire layer, forming a cable;
- stretching the cable;
- passing the cable from an initial drum through a first capstan;
- passing the cable through a second capstan, wherein tension is applied to the cable by the two capstans, and tension is reduced as the cable exits the second capstan;
- spooling the cable on a stretched cable drum;
- removing residual torque from the cable;
- spooling the cable from the stretched cable drum to a swivel sheave, wherein the stretched cable drum is configured to rotate as the cable is spooled therefrom to remove torque from the cable;
- passing the cable from the swivel sheave to an intermediate sheave;
- passing the cable from the intermediate sheave to a third capstan;
- passing the cable from the third capstan to an additional turn around sheave;
- and
- passing the cable to a seasoned cable drum.
11 more elements
Dependencies are inferred from the claim text.