Schlumberger Technology Corporation

Cameron International Corporation

Bastian Sauerer

Wael Abdallah

Harold Pfutzner

Tore Nordvik

Kevin Paul Ramirez

Rachael Anne Hughes

Embodiments described herein provide corrosion inhibitors that use hyperbranched polymer molecules functionalized with amino carboxylic acids, epoxides, and/or long chain fatty acids, or combinations thereof. Nitrogen atoms in such molecules can be quaternized to increase water solubility if needed. Such hyperbranched polymer corrosion inhibitors can be used in all stages of oil and gas operation.

Hyperbranched corrosion inhibitors

A workflow is provided that extracts and isolates an oil/water interface of a formation fluid sample and employs a ToF-SIMS instrument to characterize properties of the oil-water interface of the formation fluid sample. Additionally or alternatively, the workflow can use a ToF-SIMS instrument to analyze a formation rock sample and characterize properties of the formation rock sample. The workflow can also involve combining the at least one property related to the oil-water interface of the formation fluid sample and the least one property related to the formation rock sample for output or display to a user.

Application of ToF-SIMS for analysis of formation fluid samples and formation rock samples

A downhole tool has a tool body with an outer diameter equal to a borehole diameter, at least one cavity formed in and opening to an outer surface defining the outer diameter of the tool body, a light source, a filter, and a light detector mounted in the at least one cavity, and a window disposed at the opening of the at least one cavity, wherein the window encloses the cavity.

Method for performing Raman spectroscopy within a logging while drilling instrument

A method can include receiving, by a demulsifier analysis framework, tensiometer data for an oil and water field sample that includes an added candidate demulsifier, where the tensiometer data include rheology data with respect to frequency and where the demulsifier analysis framework includes a model derived at least in part on bottle test data for demulsifiers in oil and water emulsions; determining a performance characteristic for the candidate demulsifier with respect to the oil and water field sample using the tensiometer data as input to the model of the demulsifier analysis framework without performing a bottle test on the oil and water field sample; and outputting, by the demulsifier analysis framework, the performance characteristic for the candidate demulsifier with respect to breaking an emulsion of the oil and water field sample.

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Houston, TX, United States of America

Bastian Sauerer