Annular volume filler for perforating gun

A perforating gun, comprising:

• a charge tube in which a perforating charge is mounted, the charge tube having an outer diameter;
• a carrier tube in which the charge tube is positioned the carrier tube having an inner diameter that is greater than the outer diameter of the charge tube so as to form an annular space between the carrier tube and the charge tube;
• and
• a fill body positioned within the annular space between the charge tube and the carrier tube, the fill body comprising:
• at least two segments positioned along a length of the perforating gun to decrease a free volume of the perforating gun;
• and
• a first recess formed in the fill body adjacent the perforating charge;
• wherein at least one of the segments comprises multiple wedge parts;
• and
• wherein each of the multiple wedge parts extends circumferentially around a portion of the charge tube so that, in combination, the multiple wedge parts together extend completely around a circumference of the charge tube.

A method, comprising:

• positioning multiple segments of a fill body within a space formed between a charge tube and a carrier tube of a perforating gun to decrease a free volume of the perforating gun;
• aligning a first recess formed in the fill body with a perforating charge mounted in the charge tube;
• positioning the perforating gun in a wellbore;
• detonating the perforating charge to perforate the wellbore proximate a subterranean formation;
• and
• utilizing the fill body to mitigate pressure drawdown within the wellbore after the perforating charge is detonated;
• wherein positioning the multiple segments within the space formed between the charge tube and the carrier tube comprises:
• spacing apart the multiple segments to form circumferentially-extending axial void(s) therebetween.

A method, comprising:

• positioning multiple segments of a fill body within a space formed between a charge tube and a carrier tube of a perforating gun to decrease a free volume of the perforating gun;
• aligning a first recess formed in the fill body with a perforating charge mounted in the charge tube;
• positioning the perforating gun in a wellbore;
• and
• detonating the perforating charge to perforate the wellbore proximate a subterranean formation;
• utilizing the fill body to mitigate pressure drawdown within the wellbore after the perforating charge is detonated;
• wherein positioning the multiple segments within the space formed between the charge tube and the carrier tube comprises:
• positioning multiple wedge parts of at least one of the multiple segments partially around a circumference of the charge tube so that, in combination, the multiple wedge parts are positioned completely around the circumference of the charge tube.

A perforating gun comprising:

• a charge tube with a perforating charge mounted in the charge tube;
• a carrier tube extending around the charge tube with an annular space defined between the charge tube and the carrier tube;
• a fill body within the annular space the fill body comprising:
• a plurality of fill body segments positioned along a length of the annular space to decrease a free volume of the perforating gun;
• and
• a first recess formed in the fill body, the first recess positioned adjacent the perforating charge;
• wherein the plurality of fill body segments comprises first and second fill body segments adjacent to, and spaced apart from, one another along the length of the annular space to form a circumferentially-extending axial void between the first and second fill body segments.

A perforating gun comprising:

• a charge tube with a perforating charge mounted in the charge tube;
• a carrier tube extending around the charge tube with an annular space defined between the charge tube and the carrier tube;
• a fill body within the annular space the fill body comprising:
• a plurality of fill body segments positioned along a length of annular space to decrease a free volume of the perforating gun;
• and
• a first recess formed in the fill body, the recess positioned adjacent the perforating charge;
• wherein at least one of the segments comprises multiple wedge parts;
• and
• wherein each of the multiple wedge parts extends circumferentially around a portion of the charge tube so that, in combination, the multiple wedge parts together extend completely around a circumference of the charge tube.