David M Fish

US Patent:

58031790, Sep 8, 1998

Filed:

Dec 31, 1996

Appl. No.:

8/777650

Inventors:

Ralph H. Echols - Dallas TX
Syed Hamid - Dallas TX
David W. Fish - Carrollton TX
Rex D. Presley - Ben Wheeler TX
Timothy E. Harms - The Colony TX

Assignee:

Halliburton Energy Services, Inc. - Dallas TX

International Classification:

E21B 4300
E21B 3312
E21B 1710
E03B 311

US Classification:

166370

Abstract:

A drainage pipe section for a horizontal subterranean well has a base pipe coaxially circumscribed by a tubular structure having a longitudinally intermediate portion defined by a sand screen assembly. An annular flow passage is formed between the base pipe and the tubular structure and communicates with the interior of the base pipe via base pipe sidewall openings positioned inwardly adjacent opposite end portions of the tubular structure. Annular adjustable flow control members having variable length labyrinth passages recessed into their outer sides are coaxially interposed in the annular flow passage between the opposite ends of the sand screen assembly and the base pipe sidewall openings. The flow control members are sealed within the annular flow passage by means of a rubber coating adhered to their outer side surfaces, and an adhesive type sealant material injected into annular spaces between the flow control members and facing portions of the base pipe. Specially designed plugs having resilient portions are used to selectively seal off portions of the labyrinth passage to selectively vary its effective length and thus the resistance to flow therethrough and the fluid flow into the base pipe interior through the annular flow passage.

US Patent:

43490719, Sep 14, 1982

Filed:

Nov 7, 1980

Appl. No.:

6/204750

Inventors:

David W. Fish - Carrollton TX

Assignee:

Dresser Industries, Inc. - Dallas TX

International Classification:

E21B 2306
E21B 33129
E21B 3412

US Classification:

166124

Abstract:

A well tool assembly comprising a drillable cement retainer and setting tool includes a connection between a setting-tool mandrel and a retainer mandrel allowing for opening and closing of a cement valve in the retainer without disconnecting the setting tool from the retainer. A releasable locking mechanism in the connection keeps a tubular connector between the setting-tool mandrel and the retainer mandrel locked against sliding relative to one of the mandrels prior to deploying an upper slip set of the cement retainer. Additionally, a carrier in the setting tool includes radially resilient lugs connected between the setting-tool mandrel and a retaining sleeve for the upper slip set for sliding upwardly on the setting-tool mandrel to carry the sleeve into an upper position releasing the upper slip set for deployment. A set lock in the retainer holds the retainer mandrel against movement downwardly once the retainer is anchored in the well.