Lawrence John Rzeznik

20080067129, Mar 20, 2008

Sep 14, 2006

11/531994

MICHAEL JUENKE - SPRING TX, US
LAWRENCE RZEZNIK - SPRING TX, US

WEATHERFORD/LAMB, INC. - HOUSTON TX

C02F 1/48

210695, 210696, 210748, 204554, 208 24, 1663051

Disclosed herein is a method for treating hydrocarbon fluids to inhibit the deposition of paraffin compounds on the interior of pipes and other surfaces. The method includes injecting a catalyst fluid containing scale forming compounds into the hydrocarbon fluid. The scale forming compounds may be calcium carbonate, calcium bicarbonate, calcium, bicarbonate barium sulfate, or other compounds/ingredients. The catalyst fluid may be an aqueous or non-aqueous solution. The method further includes inducing an electromagnetic field in the fluid so as to cause the formation of seed crystals from the scale forming compounds. The paraffin will then adhere to the seed crystals, i.e., scale particles. The resulting particles can then be filtered out or otherwise removed from the solution. Paraffin deposition on the interior of pipes and other surfaces is therefore inhibited. Also disclosed herein are hydrocarbon wells and other piping systems constructed to take advantage of the described techniques.

61268720, Oct 3, 2000

Jan 27, 1998

9/014218

Nagesh S. Kommareddi - Tulsa OK
Lawrence J. Rzeznik - Spring TX

Baker Hughes Incorporated - Houston TX

B01J 1302
B01J 1304
B01J 1320
B05D 700

264 41

High concentration drag reducing agents may be prepared by microencapsulating polymer drag reducing agent. The microencapsulation may be performed prior to, during, or after the polymerization of monomer into effective drag reducing polymer. If encapsulation is done before or during polymerization, a catalyst may be present, but little or no solvent is required. The result is very small scale bulk polymerization within the microcapsule. The inert capsule or shell may be removed before, during or after introduction of the microencapsulated drag reducer into a flowing liquid. No injection probes or other special equipment is expected to be required to introduce the drag reducing slurry into the liquid stream, nor is grinding (cryogenic otherwise) of the polymer necessary to form a suitable drag reducing agent.

61600369, Dec 12, 2000

Jan 18, 2000

9/484502

Nagesh S. Kommareddi - Tulsa OK
Lawrence J. Rzeznik - Spring TX

Baker Hughes Incorporated - Houston TX

B05D 508
C08J 514

523175

High concentration drag reducing agents may be prepared by microencapsulating polymer drag reducing agent. The microencapsulation may be performed prior to, during, or after the polymerization of monomer into effective drag reducing polymer. If encapsulation is done before or during polymerization, a catalyst may be present, but little or no solvent is required. The result is very small scale bulk polymerization within the microcapsule. The inert capsule or shell may be removed before, during or after introduction of the microencapsulated drag reducer into a flowing liquid. No injection probes or other special equipment is expected to be required to introduce the drag reducing slurry into the liquid stream, nor is grinding (cryogenic or otherwise) of the polymer necessary to form a suitable drag reducing agent.