1
John L Evans: Method and apparatus for controlling the flow of drilling fluid in a wellbore. Exxon Production Research Co, Kenneth C Johnson, April 3, 1984: US04440239 (96 worldwide citation)

A method for controlling the flow of drilling fluid through a subaqueous wellbore is disclosed. The method comprises the steps of continuously measuring the output flow rate (A) of the drilling fluid from the wellbore, the input flow rate (B) of the drilling fluid to the wellbore, and at least a com ...


2
Stuart R Keller: Oscillatory flow method for improved well cementing. Exxon Production Research Co, Kenneth C Johnson, October 22, 1985: US04548271 (45 worldwide citation)

The present invention is a method for improving well cementing. A fluid such as drilling mud or preflush fluid is oscillated in the annulus prior to introduction of cement slurry into the annular interval to be cemented. The fluid is oscillated by changing its direction of flow at least twice. The o ...


3
Chen hwa Chiu: Process for the liquefaction of natural gas. Exxon Production Research Co, Kenneth C Johnson, October 22, 1985: US04548629 (23 worldwide citation)

The present invention is a process for the liquefaction of high pressure natural gas. The natural gas is expanded through a turboexpander to reduce its pressure and thereby cool it. The natural gas is then passed through a demethanizer to remove the heavier components therefrom. The natural gas is t ...


4
Raymond G Finucane, Hans O Jahns: Ice barrier construction. Exxon Production Research Co, Kenneth C Johnson, June 18, 1985: US04523879 (19 worldwide citation)

A method is provided for constructing spray ice barriers to protect offshore structures in a frigid body of water from mobile ice, waves and currents. Water is withdrawn from the body of water and is sprayed through ambient air which is below the freezing temperature of the water so that a substanti ...


5
Michael E Weyler: Apparatus for aligning a platform deck and jacket. Exxon Production Research Co, Kenneth C Johnson, April 7, 1987: US04655641 (18 worldwide citation)

The present invention provides an apparatus for aligning an integrated deck carried on a barge with a jacket secured to the seafloor. The apparatus comprises a plurality of cantilevered springs extending vertically downward from the deck and a plurality of sockets secured to the jacket, each socket ...


6
J Ward Turner: System for mating an integrated deck with an offshore substructure. Exxon Production Research Company, Kenneth C Johnson, Keith A Bell, August 2, 1988: US04761097 (17 worldwide citation)

A system for mating an integrated deck structure with an offshore substructure is provided. The system comprises a spud can attached to a leg of the integrated deck structure and a bin attached to a leg of the substructure for receiving the spud can. The bin contains a bed comprising a medium having ...


7
Mark S Ramsey, James F Miller: Cable connector for use in downhole drilling and logging operations. Exxon Production Research Co, Kenneth C Johnson, April 29, 1986: US04585287 (13 worldwide citation)

A cable connector is provided which is particularly suitable for connecting tensioned armored cable sections used in wireline measurement while drilling operations or well logging operations. The cable connector comprises a pair of field latchable housings each attached to the braided outer covering ...


8
William M Salathiel: Method of breaking an emulsion and an emulsion-emulsion breaker composition. Exxon Production Research Co, James H Riley Jr, Kenneth C Johnson, May 14, 1985: US04517102 (11 worldwide citation)

This invention relates to a composition of matter and to a method for producing a controllable, residue-free break of an emulsion or a dispersion of a water-in-oil emulsion. An emulsion breaker is incorporated into the emulsion. It is temporarily-protected (deactivated) so that breaking of the emuls ...


9
Laverne F Wallace: Drilling torquemeter. Exxon Production Research Co, Kenneth C Johnson, September 18, 1984: US04471663 (11 worldwide citation)

The present invention is a torquemeter for measuring the torque applied during drilling operations. The torquemeter is of generally flat annular form and adapted to be positioned in the drive train around a Kelly and between the rotary table and the Kelly bushing and to rotate therewith. The torquem ...


10
Andrie C T Chen, Hans O Jahns: Spray ice structure. Exxon Production Research Company, Kenneth C Johnson, October 13, 1987: US04699545 (9 worldwide citation)

The present invention provides an approach for drilling offshore arctic wells in areas covered by floating ice. A grounded spray ice drilling structure having an inner drilling platform portion and an outer barrier portion which are contiguous is constructed by withdrawing water from beneath the ice ...