Laurence J Abney

US Patent:

7815744, Oct 19, 2010

Filed:

Nov 30, 2004

Appl. No.:

11/000824

Inventors:

Laurence J. Abney - Katy TX, US
Steve Arrington - Duncan OK, US

Assignee:

Halliburton Energy Services, Inc. - Duncan OK

International Classification:

B08B 9/093

US Classification:

134 2218, 15104062, 134 8, 134 2211, 405169

Abstract:

The invention provides a method of moving a pig through pipeline, the method comprising the steps of: a) introducing the pig into the pipeline; b) causing a chemical reaction between two or more reagents to produce at least one reaction product that would be in a gaseous state at STP, wherein the reagents would be in a non-gaseous state at STP; and c) introducing the gaseous reaction product into the pipeline. The invention also provides a method of moving a pig through a pipeline, the method comprising the steps of: a) introducing the pig into the pipeline; b) introducing into the pipeline two or more reagents capable of chemically reacting to produce at least one reaction product that would be in a gaseous state at STP, wherein the reagents would be in a non-gaseous state at STP.

US Patent:

20060107773, May 25, 2006

Filed:

Nov 19, 2004

Appl. No.:

10/993853

Inventors:

Laurence Abney - Katy TX, US

International Classification:

F16L 55/48

US Classification:

073865900, 702150000

Abstract:

The location of a pig in a conduit, e.g., an underwater pipeline, may be determined by measuring an amount of a fluid displaced by the pig from the conduit and calculating the location of the pig in the conduit based on that amount of fluid. In particular, the amount of the fluid displaced by the pig may be measured using a flow meter positioned near an exit of the conduit. This amount may then be transmitted to a computer for calculating the location via, for example acoustic telemetry. The location of the pig may then be transmitted form the computer to a receiving device for receiving and displaying the location.