Halliburton Energy Services, Inc.

James Harold Wight

James Marshall Barker

John Patrick Rodgers

Christopher C Hoelscher

Thomas Earl Burky

Richard Ellis Robey

Marco Serra

Timothy S Glenn

Joseph T MacGillivray

Gerald Graves Craddock, Jr

Jonathan Paul Montiverdi

A technique is provided for estimating perforated entry and exit hole diameters (EHD) of a casing string. In one embodiment, a method for predicting perforation outcomes may comprise selecting one or more variables for a perforating operation, determining an estimate of a perforating outcome for the perforating operation, and correcting the perforating outcome to obtain a corrected perforating outcome by applying a weighting based on historical perforating data.

Self correcting prediction of entry and exit hole diameter

A system and method to control wellbore pressure during perforating. The system comprises a carrier, a sensor, a pressure-altering device, and a processor in communication with the sensor. The sensor is configured to detect a stress wave propagating through the carrier before the arrival of a related pressure wave in the wellbore and generate a signal indicative of the detected stress wave. The pressure-altering device is actuatable to change the pressure in the wellbore. The processor is operable to analyze the signal from the sensor and control the pressure-altering device based on the detected stress wave to change the magnitude of the related pressure wave in the wellbore.

System and method to control wellbore pressure during perforating

The present disclosure provides an perforating device for use within a wellbore. The perforating device comprises a center member having a length, an expansion tool positioned about the center member along at least a portion of the length, and a plurality of perforating guns positioned about the expansion tool, each of the plurality of perforating guns configured to carry one or more explosive shaped charges. The expansion tool is configured to move the plurality of perforating guns radially outward toward a wellbore target of a wellbore it is configured to be positioned within.

Perforating device

A perforating gun string may include a first perforating gun; a second perforating gun axially offset from the first perforating gun; a connector configured to interpose and couple the first and second perforating guns; and a detonation cord that passes axially through a central bore of the connector; and is connected to the first and second perforating guns. In some instances, the connector may have a body with an inner surface that defines the central bore, wherein the body has a ratio of an average diameter of the outer surface to an average diameter of the inner surface of about 1.2 to about 4.

Perforating gun connectors

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Mansfield, TX, United States of America

James Harold Wight