US 12,012,829 B1
Perforating gun and method of using same
John P. Roach, Aledo, TX (US); Daniel Tollefson, Aledo, TX (US); Chris Payson, Jacksboro, TX (US); and Jerred Smith, Fort Worth, TX (US)
Assigned to Reach Wireline, LLC, Fort Worth, TX (US)
Filed by Reach Wireline, LLC, Fort Worth, TX (US)
Filed on Nov. 12, 2021, as Appl. No. 17/454,777.
Application 17/454,777 is a continuation in part of application No. 17/518,159, filed on Nov. 3, 2021, abandoned.
Application 17/518,159 is a continuation in part of application No. 17/182,420, filed on Feb. 23, 2021, abandoned.
Claims priority of provisional application 62/982,217, filed on Feb. 27, 2020.
Claims priority of provisional application 63/263,377, filed on Nov. 1, 2021.
Int. Cl. E21B 43/1185 (2006.01); E21B 43/117 (2006.01)
CPC E21B 43/1185 (2013.01) [E21B 43/117 (2013.01)] 20 Claims
OG exemplary drawing
 
16. A method of forming and operating a perforating gun system, comprising:
providing a first perforating gun, comprising:
a charge tube having a first end and a second end for holding a shaped charge;
a switch carrier, comprising:
an addressable switch;
a spring tube housing a spring, wherein the spring biases a switch contact terminal towards an outer face of the switch carrier, the switch contact terminal being directly electrically connected to the addressable switch; and
a detonation block for holding a detonation cord and an instantaneous detonator;
a pin contact spacer comprising a pin contact assembly extending outwardly from the pin contact spacer; and
a barrel housing the charge tube, the switch carrier, and the pin contact spacer with the pin contact assembly;
wherein:
the first end of the charge tube is positioned around the switch carrier such that the switch contact terminal is accessible; and
the second end of the charge tube is secured to the pin contact spacer; and
providing first and second hollowed tandem subs, each tandem sub comprising a first hollowed section having a first diameter and a second hollowed section having a second diameter that is less than the first diameter;
positioning the switch carrier having the first end of the charge tube positioned therearound into the first hollowed section of the first tandem sub;
positioning the pin contact assembly into the second hollowed section of the second tandem sub; and
threadably attaching the barrel to the first tandem sub at a first end thereof and to the second tandem sub at a second end thereof.