Bulkhead assembly having a pivotable electric contact component and integrated ground apparatus

Patent metadata

Field	Value
Publication number	US-9784549-B2
Application number	US-201615068786-A
Country	US
Kind code	B2
Filing date	Mar 14, 2016
Priority date	Mar 18, 2015
Publication date	Oct 10, 2017
Grant date	Oct 10, 2017

Abstract

According to an aspect a bulkhead assembly is provided having particular application with a downhole tool, in particular for oil well drilling applications. The bulkhead assembly includes a bulkhead body and an electrical contact component disposed within the bulkhead body, wherein at least a portion of the electrical contact component is configured to pivot about its own axis, without compromising its ability to provide a pressure and fluid barrier. In an embodiment, a ground apparatus is provided to provide an electrical connection for at least one ground wire. The ground apparatus may be positionable on the bulkhead body of the bulkhead assembly. In an aspect, a downhole tool including the bulkhead assembly and ground apparatus is also generally described.

First claim

What is claimed is:

1. A bulkhead assembly, comprising:
a bulkhead body having a first end portion and a second end portion and a bore extending therebetween, the bulkhead body configured for sealing components positioned downstream of the bulkhead assembly within a downhole tool and to withstand a pressure of at least about 20,000 psi (137.9 mPa); and
an electrical contact component extending through the bore of the bulkhead body, such that at least a portion of the electrical contact component is configured to pivot about its own axis, wherein the electrical contact component is configured for electrical conductivity and feed-through of an electric signal,
wherein the electrical contact component comprises a plurality of contact pins, wherein at least one of the contact pins is slidably positioned within the bore of the bulkhead body, and
wherein the electrical contact component further comprises a central portion positioned within the bore of the bulkhead body, and a plurality of biasing members abut the central portion, and further wherein each of the biasing members abut at least one of the contact pins, and further wherein the plurality of biasing members comprise a first biasing member and a second biasing member, and further wherein the first biasing member is positioned within the bore of a first body portion of the bulkhead body, and the second biasing member is positioned within the bore of a second body portion of the bulkhead body.

2. The bulkhead assembly of claim 1 , wherein the plurality of contact pins comprise a first contact pin and a second contact pin, wherein the first contact pin abutting the first biasing member and the second contact pin abutting the second biasing member.

3. The bulkhead assembly of claim 2 , wherein at least one of the first contact pin and the second contact pin is rigidly connected to the first biasing member and the second biasing member, respectively.

4. The bulkhead assembly of claim 3 , wherein the first contact pin is configured for connecting to a wired electrical connection and the second contact pin is configured for wirelessly electrically contacting an electrical contact.

5. The bulkhead assembly of claim 4 , wherein the bore comprises an end portion bore extending through each of the first body portion and the second body portion, wherein the end portion bore has a smaller radius than a mid-portion bore.

6. The bulkhead assembly of claim 5 , wherein each of the plurality of contact pins comprises a pin body and a pin head extending from the pin body, and an outer diameter of the pin head is sized to be slidably received within the mid-portion bore the bore of the bulkhead body.

7. The bulkhead assembly of claim 2 , wherein the first contact pin is configured for connecting to a wired electrical connection and the second contact pin is configured for wirelessly electrically contacting an electrical contact.

8. The bulkhead assembly of claim 1 , wherein the bore comprises an end portion bore extending through each of the first body portion and the second body portion, wherein the end portion bore has a smaller radius than a mid-portion bore.

Assignees

• Dynaenergetics Gmbh & Co Kg

Inventors

• Eitschberger Christian

Classifications

• F42D1/05 Primary

  Electric circuits for blasting · CPC title

• F42D1/043

  Connectors for detonating cords and ignition tubes, e.g. Nonel tubes (mounting of detonators in blasting cartridges F42B3/26) · CPC title

• F42B3/10

  Initiators therefor (percussion fuzes F42C7/00; percussion caps F42C19/10; electric primers F42C19/12) · CPC title

• F42D1/04

  Arrangements for ignition {(ignition systems for shaped charge perforators E21B43/1185; ignition devices for seismic energy generators G01V1/06)} · CPC title

• E21B43/119 Primary

  Details, e.g. for locating perforating place or direction · CPC title