System for increasing the recovery of product fluids from underwater marine deposits

Patent 4527632 Issued on July 9, 1985. Estimated Expiration Date:

June 7, 2003. 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.

Abstract Claims Description Full Text

Patent References

2142376

2767802

3045751

3568771

3791444

3875998

Inventor

Chaudot, Geard

Application

No. 06/501790 filed on 06/07/1983

US Classes:

166/357, Separator166/54, Float controlled valve166/68.5With above ground (1) motor carried by casing or casing support or (2) well fluid pump

Examiners

Primary: Novosad, Stephen J.
Assistant: Starinsky, Michael

Attorney, Agent or Firm

Scully, Scott, Murphy & Presser

International Classes

B01D 19/00 (20060101)
E21B 43/00 (20060101)
E21B 43/34 (20060101)
E21B 43/12 (20060101)
E21B 43/01 (20060101)
E21B 43/36 (20060101)

Foreign Application Priority Data

1982-06-08 FR

Abstract

A system according to the invention includes a working well head 1 whose producing head is connected by a rigid or flexible pipe to at least one underwater degasifier tank. A pump 4 for lifting the product from the well or wells 1 is regulated by a control valve which responds to the discharge flow of liquids and/or variations in weight and/or buoyancy of the degasifier tank 3. A valve for regulating the flow of product from the well 1 is controlled by a second control means. The second control means may modulate the gas sealing pressure by pinching a stream of gas at some point in the piping in response to the relative buoyancy of said underwater degasification tank. Combinations of the various systems disclosed in the invention make it possible to increase the recovery of desired product fluids from an underwater deposit.