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Papers by Rudolf H Hausler

Corrosion, 2013

The boundary conditions leading to pitting in pipelines in the water/hydrocarbon (HC) interface r... more The boundary conditions leading to pitting in pipelines in the water/hydrocarbon (HC) interface region of the bottom-of-the-line (BOL) liquid were studied using electrochemical noise (ECN) with specially developed evaluation software. It was proved that intermittent surface wetting with HC and brine can increase the likelihood of pitting in the HC/brine boundary region of the pipeline steel. The frequency of the phase boundary movement affects the pitting intensity. Corrosive effects were strongly dependent on the presence of inhibitors, its concentration and phase behaviour influenced by isopropanol. Increasing the inhibitor concentration mitigates pit formation in all surface regions. ECN measurements in combination with the in-house developed evaluation software proved to be a sensitive tool to quantify parameter effects in short exposure times.

CORROSION …, 1996

A risk model has been developed to identify the probability that unacceptable downhole corrosion ... more A risk model has been developed to identify the probability that unacceptable downhole corrosion ... Using the life expectancy estimates for the carbon steel tubing ... The Arun field, located on the northern coast of the Aceh province in Nodh Sumatra, Indonesia, is a gas condensate ...

Corrosion, 2004

... Near-wall ,,freak waves" are postulated with energies large enough to break corrosion pr... more ... Near-wall ,,freak waves" are postulated with energies large enough to break corrosion product layers. ... Keywords: Flow induced localized corrosion, Corrosion Inhibition, Shear stress, Wavelets,Freak waves Paper No. CORROSION2004 04402 1 Copyright ...

The corrosion on the outside of the Oyster Creek drywell steel liner, particularly in the former ... more The corrosion on the outside of the Oyster Creek drywell steel liner, particularly in the former sandbed region, is of great concern in regards to the structural integrity of the liner. Various structural integrity calculations had been performed by Amergen/Exelon in the past to arrive at various wall thickness criteria. Subsequently these criteria were compared to actual measurements of remaining wall thicknesses. Going forward, continuing corrosion rates have been discussed, and times at which possible minimum wall thickness, as defined by the criteria, have been derived by the operator.

Corrosion, 1999

A novel downhole corrosion monitoring system was used to monitor corrosion rates, and verify corr... more A novel downhole corrosion monitoring system was used to monitor corrosion rates, and verify corrosion inhibitor effectiveness in the production tubing of a CO{sub 2}flood in the Oklahoma panhandle. The monitoring system was placed in the first tubing joint immediately above the electrical submersible pump. This location was deemed most corrosive, and therefore requiring the highest inhibitor concentration, due to high CO{sub 2}partial pressure, the elevated temperature, and the extremely turbulent flow. Laboratory evaluations had indicated the approximate effective inhibitor concentration required to attain the desired target corrosion rate under similar environmental and turbulence conditions. The complex problem of translating laboratory flow (high speed autoclave test) to field conditions was attempted empirically using established correlation for the rotating cylinder and tubular flow.

Corrosion, 1999

The production of a CO{sub 2} flood in the Oklahoma panhandle led to severe corrosion of the carb... more The production of a CO{sub 2} flood in the Oklahoma panhandle led to severe corrosion of the carbon steel production tubing and casing. Traditional approaches to chemical corrosion inhibition were unsuccessful. A laboratory study was initiated to determine first the best corrosion inhibitor, and second the optimum effective inhibitor concentration in the produced fluids as a function of the production rate, CO{sub 2} partial pressure, and water to oil ratio. The tool used was the high speed autoclave test (HSACT) discussed in earlier publications. Statistical experimental designs were used to study the three major parameters. The results were expressed in terms of the inhibitor concentration necessary to achieve a desired corrosion rate (for example 1 mpy), and presented either in the form of response surfaces or linear multiple regression equations. While it was generally known that higher fluid velocities require a higher inhibitor concentration for equal target corrosion rates, i...

CORROSION 99, 1999

Page 1. Paper No. 2 Development of a Corrosion Inhibition Model I: Laboratory Studies RH Hausler ... more Page 1. Paper No. 2 Development of a Corrosion Inhibition Model I: Laboratory Studies RH Hausler Corro-consults 7804 Pencross Lane Dallas, TX 75248 TG Martin Mobil Exploration and Producing US, Inc. 1200 Timberloch Place The Woodlands, TX 77389-4999 ...

Offshore Technology Conference, 2017

... Near-wall ,,freak waves" are postulated with energies large enough to break corrosion pr... more ... Near-wall ,,freak waves" are postulated with energies large enough to break corrosion product layers. ... Keywords: Flow induced localized corrosion, Corrosion Inhibition, Shear stress, Wavelets,Freak waves Paper No. CORROSION2004 04402 1 Copyright ...

Corrosion, 2013

The boundary conditions leading to pitting in pipelines in the water/hydrocarbon (HC) interface r... more The boundary conditions leading to pitting in pipelines in the water/hydrocarbon (HC) interface region of the bottom-of-the-line (BOL) liquid were studied using electrochemical noise (ECN) with specially developed evaluation software. It was proved that intermittent surface wetting with HC and brine can increase the likelihood of pitting in the HC/brine boundary region of the pipeline steel. The frequency of the phase boundary movement affects the pitting intensity. Corrosive effects were strongly dependent on the presence of inhibitors, its concentration and phase behaviour influenced by isopropanol. Increasing the inhibitor concentration mitigates pit formation in all surface regions. ECN measurements in combination with the in-house developed evaluation software proved to be a sensitive tool to quantify parameter effects in short exposure times.

CORROSION …, 1996

A risk model has been developed to identify the probability that unacceptable downhole corrosion ... more A risk model has been developed to identify the probability that unacceptable downhole corrosion ... Using the life expectancy estimates for the carbon steel tubing ... The Arun field, located on the northern coast of the Aceh province in Nodh Sumatra, Indonesia, is a gas condensate ...

Corrosion, 2004

... Near-wall ,,freak waves" are postulated with energies large enough to break corrosion pr... more ... Near-wall ,,freak waves" are postulated with energies large enough to break corrosion product layers. ... Keywords: Flow induced localized corrosion, Corrosion Inhibition, Shear stress, Wavelets,Freak waves Paper No. CORROSION2004 04402 1 Copyright ...

The corrosion on the outside of the Oyster Creek drywell steel liner, particularly in the former ... more The corrosion on the outside of the Oyster Creek drywell steel liner, particularly in the former sandbed region, is of great concern in regards to the structural integrity of the liner. Various structural integrity calculations had been performed by Amergen/Exelon in the past to arrive at various wall thickness criteria. Subsequently these criteria were compared to actual measurements of remaining wall thicknesses. Going forward, continuing corrosion rates have been discussed, and times at which possible minimum wall thickness, as defined by the criteria, have been derived by the operator.

Corrosion, 1999

A novel downhole corrosion monitoring system was used to monitor corrosion rates, and verify corr... more A novel downhole corrosion monitoring system was used to monitor corrosion rates, and verify corrosion inhibitor effectiveness in the production tubing of a CO{sub 2}flood in the Oklahoma panhandle. The monitoring system was placed in the first tubing joint immediately above the electrical submersible pump. This location was deemed most corrosive, and therefore requiring the highest inhibitor concentration, due to high CO{sub 2}partial pressure, the elevated temperature, and the extremely turbulent flow. Laboratory evaluations had indicated the approximate effective inhibitor concentration required to attain the desired target corrosion rate under similar environmental and turbulence conditions. The complex problem of translating laboratory flow (high speed autoclave test) to field conditions was attempted empirically using established correlation for the rotating cylinder and tubular flow.

Corrosion, 1999

The production of a CO{sub 2} flood in the Oklahoma panhandle led to severe corrosion of the carb... more The production of a CO{sub 2} flood in the Oklahoma panhandle led to severe corrosion of the carbon steel production tubing and casing. Traditional approaches to chemical corrosion inhibition were unsuccessful. A laboratory study was initiated to determine first the best corrosion inhibitor, and second the optimum effective inhibitor concentration in the produced fluids as a function of the production rate, CO{sub 2} partial pressure, and water to oil ratio. The tool used was the high speed autoclave test (HSACT) discussed in earlier publications. Statistical experimental designs were used to study the three major parameters. The results were expressed in terms of the inhibitor concentration necessary to achieve a desired corrosion rate (for example 1 mpy), and presented either in the form of response surfaces or linear multiple regression equations. While it was generally known that higher fluid velocities require a higher inhibitor concentration for equal target corrosion rates, i...

CORROSION 99, 1999

Page 1. Paper No. 2 Development of a Corrosion Inhibition Model I: Laboratory Studies RH Hausler ... more Page 1. Paper No. 2 Development of a Corrosion Inhibition Model I: Laboratory Studies RH Hausler Corro-consults 7804 Pencross Lane Dallas, TX 75248 TG Martin Mobil Exploration and Producing US, Inc. 1200 Timberloch Place The Woodlands, TX 77389-4999 ...

Offshore Technology Conference, 2017

... Near-wall ,,freak waves" are postulated with energies large enough to break corrosion pr... more ... Near-wall ,,freak waves" are postulated with energies large enough to break corrosion product layers. ... Keywords: Flow induced localized corrosion, Corrosion Inhibition, Shear stress, Wavelets,Freak waves Paper No. CORROSION2004 04402 1 Copyright ...