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51316-7106-Compatibility Behavior of Elastomers for PCP Applications

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A compatibility study of two elastomers with low and high nitrile content was done with the aim of understanding the performance of elastomeric materials used in progressive cavities pumps in environments such as H2S, CO2 and different crude oils to simulate real conditions in the lab.

Product Number: 51316-7106-SG
ISBN: 7106 2016 CP
Author: Carlos Fernandez
Publication Date: 2016
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$20.00
$20.00

With the aim of understand the performance of elastomeric materials used in progressive cavities pumps to face operational conditions presented in Venezuelan oil wells it was carried out a compatibility study with a nitrile rubber in environments such as H2S CO2 and different crude oils to simulate real conditions in the lab. This study is based in the evaluation of the mechanical behavior of the elastomers before and after being in contact with different fluid and gases. NACE and ASTM standards were used to evaluate mechanical properties of the elastomers such as yield strength elongation at break Shore A hardness permanent deformation and volumetric swelling. It was employed characterization techniques such as thermal gravimetric analysis (TGA) and scanning electron microscopy (SEM). The effect of crude oils hydrogen sulfide (H2S) and carbon dioxide (CO2) in the elastomer helps to predict the performance behavior of the material when it is in service. Upon completion of the different evaluation techniques it was observed how different fluids conditions (Temperature H2S and CO2 concentration partial pressure etc) affect the mechanical properties of the elastomers studied. It is recommended to continue the evaluation with different elastomers which provide a range of support to various aggressive environments to which the material is subjected during its operation.

With the aim of understand the performance of elastomeric materials used in progressive cavities pumps to face operational conditions presented in Venezuelan oil wells it was carried out a compatibility study with a nitrile rubber in environments such as H2S CO2 and different crude oils to simulate real conditions in the lab. This study is based in the evaluation of the mechanical behavior of the elastomers before and after being in contact with different fluid and gases. NACE and ASTM standards were used to evaluate mechanical properties of the elastomers such as yield strength elongation at break Shore A hardness permanent deformation and volumetric swelling. It was employed characterization techniques such as thermal gravimetric analysis (TGA) and scanning electron microscopy (SEM). The effect of crude oils hydrogen sulfide (H2S) and carbon dioxide (CO2) in the elastomer helps to predict the performance behavior of the material when it is in service. Upon completion of the different evaluation techniques it was observed how different fluids conditions (Temperature H2S and CO2 concentration partial pressure etc) affect the mechanical properties of the elastomers studied. It is recommended to continue the evaluation with different elastomers which provide a range of support to various aggressive environments to which the material is subjected during its operation.

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Picture for Qualification of Super 13Cr-110 in HPHT Sour Well Service with Concentrated Brines
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51316-7126-Qualification of Super 13Cr-110 in HPHT Sour Well Service with Concentrated Brines

Product Number: 51316-7126-SG
ISBN: 7126 2016 CP
Author: Fengmei Song
Publication Date: 2016
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A corrosion cracking assessment evaluated a 13Cr-5Ni-2Mo 110 ksi grade martensitic stainless steel as a potential well tubing material for oil and gas production from Gulf of Mexico reservoirs. Also, Stress Corrosion Cracking at low H2S/low temp/high acidity (pH<3.5) was tested by  Cyclic Slow Strain Rate. 
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51316-7119-Sour Service Performance of EPR - 110ksi Grade Material

Product Number: 51316-7119-SG
ISBN: 7119 2016 CP
Author: Thodla Ramgopal
Publication Date: 2016
$20.00

Sour service behavior of a 110ksi material was investigated in a range of production environments. Slow strain rate tests were performed at a strain rate of 510-7/s, in sweet as well as in sour production environments. The strain to failure in sweet environments is lower than the in-air values and is substantially lower in the presence of H2S.

 

 
Picture for Considerations on The Selection of Protective and Concrete Weight Coatings for Offshore Pipelines
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51316-7107-Considerations on The Selection of Protective and Concrete Weight Coatings for Offshore Pipelines

Product Number: 51316-7107-SG
ISBN: 7107 2016 CP
Author: Carlos Fernandez
Publication Date: 2016
$20.00

This study is focused on description, discussion and analysis of the different technologies available against external corrosion in offshore export pipelines and its suitability for the Venezuelan pipeline offshore projects. Several anti-corrosive protective coatings and concrete weight coating were evaluated.
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