U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Blow out preventer testing apparatus

Patent 7062960 Issued on June 20, 2006. Estimated Expiration Date: Icon_subject May 9, 2022. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

3443643

3861463

3924679

Subsea control valve apparatus
Patent #: 3955623
Issued on: 05/11/1976
Inventor: Aumann

Apparatus for testing oil wells
Patent #: 3964305
Issued on: 06/22/1976
Inventor: Wray ,   et al.

Blowout preventer testing apparatus
Patent #: 4018276
Issued on: 04/19/1977
Inventor: Bode

4030354

4090395

Acoustical underwater communication system for command control and data
Patent #: 4147222
Issued on: 04/03/1979
Inventor: Patten ,   et al.

Hydraulic test tool and method
Patent #: 4159637
Issued on: 07/03/1979
Inventor: Lamb ,   et al.

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Inventors

Assignee

Application

No. 10141720 filed on 05/09/2002

US Classes:

73/152.51, Pressure measurement166/367, Riser166/182, Packer or plug locked expanded73/152.01, BOREHOLE OR DRILLING (E.G., DRILL LOADING FACTOR, DRILLING RATE, RATE OF FLUID FLOW)166/183, With controllable bypass outside central conduit175/9, Boring from nonbuoyant support73/46, Between fitted parts (e.g., joints)367/83, Through well fluids73/152.43, During drilling166/66, Indicating137/614.02, Each valve and/or closure operated by coupling motion166/339, With provision for removal or repositioning of member without removal of other well structure166/341, With orienting or aligning of member for connection166/250.01, With indicating, testing, measuring or locating356/617, Coded scale367/82, Through drill string or casing166/87.1, Axially movable type valve166/250.08, Leak testing or locating166/95.1, Central valve or closure and lateral port166/84.3, Rotary blowout preventer type166/356, Means to provide protective environment for operative access below surface of water166/336, Testing166/264, Sampling well fluid166/345, Connection of riser-and-tubing assembly to other structure166/363, With safety or emergency shutoff166/375, By auxilliary fluid control line166/338Connection or disconnection of submerged members remotely controlled

Examiners

Primary: Williams, Hezron
Assistant: Fitzgerald, John

Attorney, Agent or Firm

Foreign Patent References

  • 0 358 378 EP 03/01/1990
  • 0 566 382 EP 10/01/1993
  • WO98 50676 WO 11/01/1998

International Class

E21B 47/06

Abstract

The consequences of any failure of a blow out preventer assembly to operate correctly in an emergency can be far reaching. Thus, there is provided an apparatus for registering parameters in the bore of a member which is, in use, connected to a pressurised housing, the apparatus comprising: an electro-control package for attachment, in use, to the member; a test assembly placed, in use, in the member; the electro-control package and the test assembly having means for sending signals to and receiving signals from one another.

Other References

  • OTC 6390; J.A. Burton, et al; Intelligent Running Tool for Subsea Drilling and Completion Equipment Using Acoustical Two-Way Communication Between the Subsea Wellhead and the Surface;; 22nd Annual OTC May 7-10, 1990 (pp. 4).
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