Sensing shock during well perforating
AssigneeHalliburton Energy Services, Inc.
InventorsJohn Rodgers, Marco Serra, David Swenson, Eugene Linyaev, Timothy S. Glenn, Cam Le
Life of this patent
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Abstract
A shock sensing tool for use with well perforating can include a generally tubular structure which is fluid pressure balanced, at least one strain sensor which senses strain in the structure, and a pressure sensor which senses pressure external to the structure. A well system can include a perforating string including multiple perforating guns and at least one shock sensing tool, with the shock sensing tool being interconnected in the perforating string between one of the perforating guns and at least one of: a) another of the perforating guns, and b) a firing head.
Claims21
A well system, comprising:
- a perforating string including multiple perforating guns and at least one shock sensing tool which measures shock experienced by the perforating string due to detonation of the perforating guns and which stores within the shock sensing tool at least one measurement of the shock,
- wherein the shock sensing tool is interconnected in the perforating string between a firing head and a perforating gun nearest the firing head, wherein the firing head detonates the nearest perforating gun.
A well system, comprising:
- a perforating string including multiple perforating guns and at least one shock sensing tool which measures shock experienced by the perforating string due to detonation of the perforating guns and which stores within the shock sensing tool at least one measurement of the shock, the shock sensing tool being interconnected in the perforating string between a firing head and a perforating gun nearest the firing head,
- wherein the firing head detonates the nearest perforating gun, and
- wherein the shock sensing tool includes a sensor which senses load in a structure.
A well system, comprising:
- a perforating string including multiple perforating guns and at least one shock sensing tool which measures shock experienced by the perforating string due to detonation of the perforating guns and which stores within the shock sensing tool at least one measurement of the shock, the shock sensing tool being interconnected in the perforating string between a firing head and a perforating gun nearest the firing head, wherein the firing head detonates the nearest perforating gun, and
- wherein the shock sensing tool includes a pressure sensor which senses pressure produced by detonating at least one of the perforating guns.
A well system, comprising:
- a perforating string including multiple perforating guns and at least one shock sensing tool which measures shock experienced by the perforating string due to detonation of the perforating guns and which stores within the shock sensing tool at least one measurement of the shock, the shock sensing tool being interconnected in the perforating string between a firing head and a perforating gun nearest the firing head, wherein the firing head detonates the nearest perforating gun, and
- wherein the shock sensing tool begins increased recording of sensor measurements in response to sensing a predetermined event.
A shock sensing tool for use with well perforating, the shock sensing tool comprising:
- a structure which is fluid pressure balanced;
- at least one sensor which senses load in the structure;
- a first pressure sensor which senses pressure external to the structure;
- an electronics package which collects sensor measurements of shock experienced due to detonation of at least one perforating gun and which stores downhole the sensor measurements;
- and
- at least one perforating gun connector which interconnects the shock sensing tool in a perforating string between a firing head and a perforating gun nearest the firing head, wherein the firing head detonates the nearest perforating gun.
Dependencies are inferred from the claim text.