Baker Hughes Corporation

Other

William D Myers, Jr

Timothy W Sampson

Robert R Green

Kelly D Ireland

Avigdor Hetz

Robert K Bethel

Kare-Jonny Haugvalstad

James Warren Reese

Kristian Vargervik

Donald N Yates, Jr

Edgar W Van Sickle

A perforating gun connector comprising a first and second section connected together on one end. The two sections of the perforating gun connector that couple together are correspondingly tapered so that one end of one connector is tapered and fits into the corresponding tapered hollowed section of one end of the other section. The present invention also provides for the inclusion of shaped charges and booster charges within. Adjacent the charges are sealing bulkheads.

Connector for perforating gun tandem

Disclosed herein is a shaped charge assembly for use in a perforating gun. The shaped charge assembly includes a shaped charge combined with a longitudinal spine extending along a portion of a perforating gun barrel. The shaped charge can be secured to the spine with a retaining shell. A bushing is included between the outer radius of the casing the retaining shell. The bushing serves to absorb shock during detonation of the shaped charge and to help in orienting the shaped charges.

Low debris perforating gun system for oriented perforating

Disclosed herein is a reinforcing system for a shaped charge assembly for use in a perforating gun. The shaped charge assembly includes a shaped charge combined with a longitudinal reinforcing system extending along a portion of a perforating gun barrel. The reinforcing system comprises a spine with a recess formed to receive the shaped charge of a perforating gun. The reinforcing system further comprises a compression zone coaxially disposed around a portion of the shaped charge. The compression zone is formed between a bushing and a retaining shell that also coaxially circumscribe a portion of the shaped charge and on one of their respective ends connect to the spine.

A connector is presented for tubing conveyed perforating guns which facilitates connection or disconnection between guns without the need for rotation. A latching mechanism is disclosed which latches by setting down weight and unlatches by an actuating ram camming the latch out of a window. The connectors are configured so that they are sealed internally and have an external profile for interengagement with a seal ram for support and sealing around the outer periphery. Accordingly, a live well can be isolated using a seal ram around a fired gun because the internal passages through the gun are sealed off by virtue of seals around a hammer piston. The connectors are configured so that an upper gun creates the pressure required to set off the gun below. The connectors are also configured such that when a lower gun is supported by a seal ram, an emergency shear zone is presented opposite a shear ram to ensure that if an emergency well shutdown is required that the shear ram does not have to cut through a section of the gun which contains explosives.

Downhole tool connection for live well deployment

A one-trip system for placement and setting a downhole packer or plug is disclosed. The packer is settable in a variety of ways, including hydraulically, acoustically by pressure pulse signals, or some combination. Use of hydraulic pressure triggers a pressure-creating reaction to initiate the setting of the packer. The setting mechanism for the packer breaks clear of the packer upon setting and allows the tubing-conveyed perforating gun, which is already preassembled as part of the string, to be accurately positioned and fired.

One-trip conveying method for packer/plug and perforating gun

Perforating gun connection and method of connecting for live well

An apparatus for actuating a firing head is disclosed. The apparatus contains a firing head that is operatively connected to a detonating cord of a perforating gun containing a series of shaped charges. The perforating gun will be connected to a work string in a wellbore filled with a fluid. The apparatus generally comprises a housing member having an inner portion and an outer portion; a blocking member for blocking passage of a hydrostatic pressure; a mechanical activation piston, adapted to be received within the housing member, for mechanically opening the blocking member. The apparatus further contains a hydraulic activation piston, adapted to be received within the housing member, for activating a percussion initiator firing member; and a transfer charge booster that transfers the detonation to a detonation cord.

Apparatus and method for perforating wellbores

A well perforating gun provides a full bore passage for fluids and tools through the discharged gun without increasing the normal exterior diameter of the gun. The full bore passage is disposed eccentrically within a tubular housing and the perforating guns are mounted in a longitudinally spaced array on one or more elongated strips disposed adjacent elongated slots in the wall of the housing opposite the eccentric portion of the full bore fluid passage.

Growing community of inventors

Houston, TX, United States of America

William D Myers, Jr