Corrosion behavior study of oil casing steel on alternate injection air and foam liquid in air-foam flooding for enhance oil recovery

Chen, Mingyan; Wang, Hua; Liu, Yucheng; Ma, Lili; Wu, Donghai; Wang, Shanyi

doi:10.1016/j.petrol.2017.09.081

Cited by 27 publications

(8 citation statements)

References 35 publications

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“…The increase in CO 2 partial pressure makes solution pH decrease and depolarization of hydrogen ions increase. Previous studies (Fu et al 2016;Chen et al 2018) have shown that the lower the pH of the acidic solution, the more severe the CO 2 corrosion. Figure 7 shows the averaged corrosion rates of N80 steel at different flow velocity.…”

Section: Discussion Of Corrosion Test Resultsmentioning

confidence: 96%

Risk assessment of corroded casing based on analytic hierarchy process and fuzzy comprehensive evaluation

et al. 2020

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Casing corrosion during CO2 injection or storage results in significant economic loss and increased production risks. Therefore, in this paper, a corroded casing risk assessment model based on analytic hierarchy process and fuzzy comprehensive evaluation is established to identify potential risks in time. First, the corrosion rate and residual strength characteristics are analyzed through corrosion tests and numerical simulations, respectively, to determine the risk factors that may lead to an accident. Then, an index system for corroded casing risk evaluation is established based on six important factors: temperature, CO2 partial pressure, flow velocity, corrosion radius, corrosion depth and wellhead pressure. Subsequently, the index weights are calculated via the analytic hierarchy process. Finally, the risk level of corroded casing is obtained via the fuzzy comprehensive evaluation. The corroded casing risk assessment model has been verified by a case well, which shows that the model is valuable and feasible. It provides an effective decision-making method for the risk evaluation of corroded casing in CO2 injection well, which is conductive to improve the wellbore operation efficiency.

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Section: Discussion Of Corrosion Test Resultsmentioning

confidence: 96%

Risk assessment of corroded casing based on analytic hierarchy process and fuzzy comprehensive evaluation

et al. 2020

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“…Pipeline steels are used for the transportation of oil and gas, and are high technology, high value products [1][2][3]. A well-developed system of oil and gas exploitation consists of a series of pipeline steels which joints each other by welding [4,5].…”

Section: Introductionmentioning

confidence: 99%

Effects of Q&T parameters on phase transformation, microstructure, precipitation and mechanical properties in a PS-30Cr2Nb pipeline steel

Guan

Yuan

Xiong

et al. 2020

Mater. Res. Express

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The heat treatments with different quenching and tempering temperatures were conducted to clarify the effects of Q&T (quenching and tempering) parameters on phase transformation, microstructure, precipitation, mechanical properties in a PS-30Cr2Nb pipeline steel. Results indicate that the optimum property of tensile strength of 892 MPa and elongation of 19.17% was obtained at a low quenching (950°C) and low tempering temperature (570°C). Finer prior austenite grains and carbides contributed to the higher strength. Besides, the content of coarsening carbides increased with tempering temperature and quenching temperature. The increased content of coarsening carbides is responsible for the deteriorative comprehensive performance. In addition, Fe 3 C particle was gradually substituted by the alloy carbides with the proceeding of tempering by the dynamic assignment of elements.

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“…In signal processing and inversion interpretation of cross-well measurement data, a large part of the effort is devoted to eliminating the influence of the casing on response signals. [27][28][29] As the actual borehole of oil and gas production wells is very small in size, the diameter of the magnetic dipole source in wells is limited, and the transmitting power of a signal source is further limited. As a result, the detection range is limited, making it difficult to effectively detect interwell oil and gas reservoirs.…”

Section: Introductionmentioning

confidence: 99%

“…Metal casings are often found in a single well, either the emitting well or the receiving well, or in both wells in the cross‐well electromagnetic measurement. In signal processing and inversion interpretation of cross‐well measurement data, a large part of the effort is devoted to eliminating the influence of the casing on response signals 27‐29 . As the actual borehole of oil and gas production wells is very small in size, the diameter of the magnetic dipole source in wells is limited, and the transmitting power of a signal source is further limited.…”

Section: Introductionmentioning

confidence: 99%

Research on cross‐well pseudorandom electromagnetic detection method and extraction of response characteristics

Song

Momayez

Wang

et al. 2020

Energy Science & Engineering

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Corrosion behavior study of oil casing steel on alternate injection air and foam liquid in air-foam flooding for enhance oil recovery

Cited by 27 publications

References 35 publications

Risk assessment of corroded casing based on analytic hierarchy process and fuzzy comprehensive evaluation

Risk assessment of corroded casing based on analytic hierarchy process and fuzzy comprehensive evaluation

Effects of Q&T parameters on phase transformation, microstructure, precipitation and mechanical properties in a PS-30Cr2Nb pipeline steel

Research on cross‐well pseudorandom electromagnetic detection method and extraction of response characteristics

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