Stephen D. Matza - Stafford TX William E. Ellington - Houston TX Henry C. Fleming - Houston TX
Assignee:
Shell Oil Company - Houston TX
International Classification:
G01N 3102 G01N 3324
US Classification:
436 30
Abstract:
The concentration of unspent zinc-based hydrogen sulfide scavenger in an aqueous drilling fluid is controlled by selectively extracting the unspent scavenger in a solvent, such as glacial acetic acid, measuring the concentration of dissolved zinc, for example, with an X-ray fluorescence spectrograph, and utilizing the results of the measurements to proportion the extent of changes to be made in the concentration of the scavenger.
Controlling Sulfide Scavenger Content Of Drilling Fluid
Stephen D. Matza - Stafford TX William E. Ellington - Houston TX Henry C. Fleming - Houston TX
Assignee:
Shell Oil Company - Houston TX
International Classification:
G01N 3102 G01N 3324
US Classification:
175 40
Abstract:
The concentration of unspent zinc-based hydrogen sulfide scavenger in an aqueous drilling fluid is controlled by selectively extracting an unspent scavenger in a solvent, such as glacial acetic acid, measuring the concentration of dissolved zinc, for example, with an X-ray fluorescence spectrograph, and utilizing the results of the measurements to proportion the extent of changes to be made in the concentration of the scavenger.
Method For Determining The Amount Of Oil In A Sponge Core
Rocco DiFoggio - Houston TX William E. Ellington - Houston TX Kailash C. B. Dangayach - Houston TX
Assignee:
Shell Oil Company - Houston TX
International Classification:
B01D 1508
US Classification:
210656
Abstract:
The oil lost by the core sample and captured by the sponge during sponge coring is extracted from the sponge using a solvent selected from the group consisting of cycloalkanes, ethers, and freons.
Controlling Sulfide Scavenger Content Of Oil-Based Drilling Fluid
Stephen D. Matza - Stafford TX William E. Ellington - Houston TX Henry C. Fleming - Houston TX
Assignee:
Shell Oil Company - Houston TX
International Classification:
G01N 3102 G01N 3324
US Classification:
175 40
Abstract:
The concentration of unspent zinc-based hydrogen sulfide scavenger in an oil-based drilling fluid is controlled by selectively dissolving and extracting the unspent scavenger in a solvent, such as glacial acetic acid, separating the aqueous solution, measuring the concentration of dissolved zinc in the aqueous solution, for example, with an X-ray fluorescence spectrograph, and utilizing the results of the measurements to proportion the extent of changes in concentration of the scavenger in the drilling fluid.
Method For Analyzing Solvent Extracted Sponge Core
William E. Ellington - Houston TX Clayton L. Calkin - Houston TX
Assignee:
Shell Oil Company - Houston TX
International Classification:
E21B 4900
US Classification:
73153
Abstract:
A method for quantifying the volume of oil in the fluids produced by solvent extracted sponge core distills only a portion of the solvent from the solvent/oil mixture, then determines and subtracts the remaining solvent volume to yield the actual volume of oil removed from the sponge.
Controlling Sulfide Scavenger Content Of Drilling Fluid
Stephen D. Matza - Stafford TX William E. Ellington - Houston TX Henry C. Fleming - Houston TX
Assignee:
Shell Oil Company - Houston TX
International Classification:
E21B 4400 E21B 4710 G01N 3102 G01N 3324
US Classification:
175 40
Abstract:
The concentration of unspent zinc-based hydrogen sulfide scavenger in an aqueous drilling fluid is controlled by selectively extracting the unspent scavenger in a solvent, such as glacial acetic acid, measuring the concentration of dissolved zinc, for example, with an X-ray fluorescence spectrograph, and utilizing the results of the measurements to proportion the extent of changes to be made in the concentration of the scavenger.