Research on Corrosion of Well-Bore Tube and Anticorrosive Measure of Tazhong-1 Gas Field

2011 ◽  
Vol 108 ◽  
pp. 308-313 ◽  
Author(s):  
Shan Fa Tang ◽  
Xue Yang ◽  
Da Wei Wu
Keyword(s):  
Carbon Dioxide ◽  
Hydrogen Sulfide ◽  
Natural Gas ◽  
Corrosion Inhibitors ◽  
Produced Water ◽  
Formation Water ◽  
Well Bore ◽  
Gas Field ◽  
Production Wells ◽  
Sulfide Corrosion

Natural gas of Tazhong-1 gas field contains 7.7% carbon dioxide and 2.31% hydrogen sulfide, and produced water salinity is up to 140000mg/L,the well-bore tube has seriously potential corrosion destructive with natural gas being exploited. Based on the corrosion type partition of down-hole tube for eighteen production wells of Tazhong-1 gas field, P110,P110S and P110SS corrosion behavior were investigated under the conditions of simulated formation water containing carbon dioxide or hydrogen sulfide/carbon dioxide, and corrosion inhibitors were chosen to meet need of anticorrosion of Tazhong-1 gas field. The results show that fifteen wells in eighteen production wells belong to hydrogen sulfide corrosion of both hydrogen sulfide and carbon dioxide influence. Other wells are singular carbon dioxide corrosion. The most severe corrosion of three types of down-hole tubes all occurs at 90°C in both corrosion media, and their corrosion resistance order is respectively P110>P110S>P110SS and P110S>P110SS>P110 under the conditions of simulated formation water containing carbon dioxide or hydrogen sulfide and carbon dioxide. The selected anti-temperature corrosion inhibitors (YU-1、YU-4) can control the corrosion rate of three types of down-hole tubular goods within 0.076mm/a in simulated formation water media with carbon dioxide (PCO2=0.08～4.64MPa) or hydrogen sulfide and carbon dioxide (PH2S/Pco2=1.3/4.64Mpa) while added amount of the inhibitor is 120～300mg/L or 200mg/L. All of these provide technical support for safe and fast development of Tazhong-1 gas field.

New, effective carbon dioxide and hydrogen sulfide corrosion inhibitors based on white phosphorus, sulfur, alcohols, and amines

2013 ◽  
Vol 53 (2) ◽  
pp. 139-143 ◽  
Author(s):  
E. S. Batyeva ◽  
O. V. Ugryumov ◽  
O. A. Varnavskaya ◽  
Yu. P. Khodyrev ◽  
E. V. Platova ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Hydrogen Sulfide ◽  
Corrosion Inhibitors ◽  
White Phosphorus ◽  
Sulfide Corrosion ◽  
Hydrogen Sulfide Corrosion

scholarly journals Effects of the rate of carbon dioxide injection at the initial gas-water contact on the recovery factor

2020 ◽  
pp. 23-30
Author(s):  
О. R. Kondrat ◽  
S. V. Matkivskyi ◽  
О. V. Burachok ◽  
L. І. Haidarova
Keyword(s):  
Carbon Dioxide ◽  
Natural Gas ◽  
Injection Rate ◽  
Gas Condensate ◽  
Recovery Factor ◽  
Formation Water ◽  
Carbon Dioxide Injection ◽  
Water Contact ◽  
Gas Recovery ◽  
Production Wells

The process of carbon dioxide injection into the initial gas-water contact with different rates of its injection, using a 3D model of a gas condensate reservoir, has been investigated. Calculations were carried out for one well injection rate of non-hydrocarbon gas: 40, 50, 60, 70, 80, 90 th.m3/day. According to the calculated results, it has been found that with an increased rate of the carbon dioxide injection into a productive reservoir, the operation duration of production wells decreases until the moment of the carbon dioxide breakthrough. Based on the techno-logical indicators’ analysis of the gas condensate reservoir’s development, it has been found that the introduction of the carbon dioxide injecting technology leads to a reduction in the production of formation water. Due to the injec-tion of non-hydrocarbon gases, a hydrodynamic barrier is created on the initial gas-water contact boundary, which decreases the water influx. Also, the introduction of carbon dioxide injection technology will additionally create an artificial barrier between water and natural gas, which blocks the selective water encroaching and thereby ensure stable waterless operation of production wells. Based on the conducted calculations, the main dependencies have been derived and the corresponding patterns between them have been established. According to the results of the statistical processing of the calculated data, the optimal carbon dioxide injection rate has been determined. At the time of the carbon dioxide breakthrough into the producing well, its optimal well injection rate is 58.17 th.m3/day. The ultimate gas recovery factor for the optimal carbon dioxide injection rate is 63.29 %. Under the same condi-tions during depletion, the ultimate natural gas recovery factor is 53.98%. The results of the carried out studies indicate the technological efficiency of carbon dioxide injection into the initial gas-water contact in order to slow down the formation water encroaching into productive reservoir.

scholarly journals Pilot test of study on brine injection into shallow formation for mitigating land subsidence in the Southern Kanto Gas Field in Japan

2020 ◽  
Vol 382 ◽  
pp. 787-790
Author(s):  
Noriyuki Muraoka ◽  
Yuji Hayashi ◽  
Katsuhiro Nakamura ◽  
Toshiaki Yamaguchi ◽  
Kazunori Ono ◽  
...  
Keyword(s):  
Natural Gas ◽  
Land Subsidence ◽  
Ground Level ◽  
Pilot Test ◽  
Formation Water ◽  
Gas Field ◽  
Bottom Hole ◽  
Test Study ◽  
Water Formation ◽  
Brine Injection

Abstract. In the Southern Kanto Gas Field, natural gas dissolved in water has been produced for over 80 years. In order to produce the natural gas dissolved in water, formation water must be pumped from a reservoir in the gas field. The production of formation water is considered to be one of the causes of land subsidence. Because brine injection into shallow formations is expected to be effective to mitigate land subsidence, our association is planning to conduct the pilot test study. In this test, the production and injection of brine are going to be performed, and we will observe a deformation of the shallow formation and a change of ground level and the bottom hole pressure. As a result of these tests, if the land subsidence mitigation effect by injection into shallow formation is confirmed, it is expected that it will be connected to increased production and to reservoir management in consideration of land subsidence mitigation in the future.

scholarly journals First-principles microkinetic study of methane and hydrogen sulfide catalytic conversion to methanethiol/dimethyl sulfide on Mo6S8 clusters: activity/selectivity of different promoters

2019 ◽  
Vol 9 (17) ◽  
pp. 4573-4580 ◽  
Author(s):  
Adam A. Arvidsson ◽  
William Taifan ◽  
Anders Hellman ◽  
Jonas Baltrusaitis
Keyword(s):  
Carbon Dioxide ◽  
Hydrogen Sulfide ◽  
Natural Gas ◽  
First Principles ◽  
Dimethyl Sulfide ◽  
Large Fraction ◽  
Catalytic Conversion ◽  
Sour Gas

A large fraction of the global natural gas reserves is in the form of sour gas, i.e. contains hydrogen sulfide (H2S) and carbon dioxide (CO2), and needs to be sweetened before utilization.

Supersonic separation technology for carbon dioxide and hydrogen sulfide removal from natural gas

2021 ◽  
Vol 288 ◽  
pp. 125689
Author(s):  
Xuewen Cao ◽  
Dan Guo ◽  
Wenjuan Sun ◽  
Pan Zhang ◽  
Gaoya Ding ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Hydrogen Sulfide ◽  
Natural Gas ◽  
Separation Technology ◽  
Sulfide Removal ◽  
Hydrogen Sulfide Removal

scholarly journals Investigation of Carbon Dioxide Corrosion Inhibitors for Steel for Use in Oil and Gas Production

2020 ◽  
Vol 129 (4) ◽  
pp. 14-18
Author(s):  
L. A. Magadova ◽  
◽  
K. A. Poteshkina ◽  
V. D. Vlasova ◽  
M. S. Pilipenko ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Corrosion Inhibitors ◽  
Oil And Gas ◽  
Produced Water ◽  
Gas Production ◽  
Gravimetric Analysis ◽  
Carbon Dioxide Corrosion ◽  
Oil And Gas Production ◽  
Protective Properties ◽  
Industrial Samples

The effect of carbon dioxide corrosion on the pipeline transport system and its protection methods are considered in this article. The corrosion inhibitors represented by imidazoline-based compositions and industrial samples of corrosion inhibitors are used as protective reagents, and the model of produced water saturated with carbon dioxide is used as an aggressive environment. The protective properties of inhibitors and the corrosion rate were evaluated by gravimetric analysis. The paper presents the results of the study of industrial samples and inhibitory compositions developed on the basis of the REC “Promyslovaya himiya”. According to the results of the work, a positive effect of additives of nonionic surfactants on the protective properties of inhibitors was noted.

scholarly journals Effects of the rate of natural gas production on the recovery factor during carbon dioxide injection at the initial gas-water contact

2021 ◽  
Vol 1 (3(57)) ◽  
pp. 6-11
Author(s):  
Serhii Matkivskyi
Keyword(s):  
Carbon Dioxide ◽  
Natural Gas ◽  
Gas Production ◽  
Gas Condensate ◽  
Recovery Factor ◽  
Formation Water ◽  
Hydrocarbon Gases ◽  
Water Contact ◽  
Natural Gas Production ◽  
Gas Recovery

The object of research is gas condensate reservoirs, which is being developed under the conditions of the manifestation of the water drive of development and the negative effect of formation water on the process of natural gas production. The results of the performed theoretical and experimental studies show that a promising direction for increasing hydrocarbon recovery from fields at the final stage of development is the displacement of natural gas to producing wells by injection non-hydrocarbon gases into productive reservoirs. The final gas recovery factor according to the results of laboratory studies in the case of injection of non-hydrocarbon gases into productive reservoirs depends on the type of displacing agent and the level heterogeneity of reservoir. With the purpose update the existing technologies for the development of fields in conditions of the showing of water drive, the technology of injection carbon dioxide into productive reservoirs at the boundary of the gas-water contact was studied using a digital three-dimensional model of a gas condensate deposit. The study was carried out for various values of the rate of natural gas production. The production well rate for calculations is taken at the level of 30, 40, 50, 60, 70, 80 thousand m3/day. Based on the data obtained, it has been established that an increase in the rate of natural gas production has a positive effect on the development of a productive reservoir and leads to an increase in the gas recovery factor. Based on the results of statistical processing of the calculated data, the optimal value of the rate of natural gas production was determined when carbon dioxide is injected into the productive reservoir at the boundary of the gas-water contact is 55.93 thousand m3/day. The final gas recovery factor for the optimal natural gas production rate is 64.99 %. The results of the studies carried out indicate the technological efficiency of injecting carbon dioxide into productive reservoirs at the boundary of the gas-water contact in order to slow down the movement of formation water into productive reservoirs and increase the final gas recovery factor.

scholarly journals Water Scrubbing for Removal of CO2 (Carbon Dioxide) and H2S (Hydrogen Sulfide) in Biogas from Manure

KnE Energy ◽  
2015 ◽  
Vol 2 (2) ◽  
pp. 126 ◽  
Author(s):  
Mufidatul Islamiyah ◽  
Totok Soehartanto ◽  
Ridho Hantoro ◽  
Arif Abdurrahman
Keyword(s):  
Carbon Dioxide ◽  
Hydrogen Sulfide ◽  
Natural Gas ◽  
Animal Health ◽  
Environmentally Friendly ◽  
Purification Process ◽  
Basic Ingredient ◽  
Biogas Purification

<p>Purifying biogas from CO2 (carbon dioxide) and H2S (hydrogen sulfide) needs to be done to improve the quality of the biogas in the fuel. The presence of H2S in biogas can cause corrosive to the equipment, in addition to this, H2S is also dangerous for human and animal health. CO2 contained in Biogas is also an impurity that can cause corrosive beside H2S so the contained in biogas is also an impurity that can cause corrosive, so the purification process needs to be done in order to qualify biogas as natural gas which environmentally friendly and safe for health. The basic ingredient of biogas purification using water scrubbers base ingredients are water, which flowed pressurized biogas purification column from the bottom, of the column in order to reduce CO2 and H2S gases. The result of purification by using this method was that the levels of H2S in biogas reduced by 32.8 % while the CO2 content decreased by 21.2 %. It can be concluded that the H2S gas more soluble in the water compared with CO2, as H2S gas has higher efficiency removal from CO2. </p><p><strong>Keywords</strong>: biogas; carbon dioxide; hydrogen sulfide, waters scrubber</p>

New metal complexes with inhibiting and biocide properties

2020 ◽  
pp. 46-52
Author(s):  
F.F. Veliyev ◽  
Keyword(s):  
Carbon Dioxide ◽  
Carbon Steel ◽  
Hydrogen Sulphide ◽  
Copper Complex ◽  
Produced Water ◽  
Methanol Solutions ◽  
Production Wells ◽  
Carbon Dioxide Co2 ◽  
Water Saturated ◽  
Reducing Bacteria

Methanol solutions of various concentrations have been developed based on synthesized N, Nʹ- (pirazin-2-il) pyridine - 2,6-diamine ligand (N5-2pz), its linear pentanuclear of nickel string (II) [Ni5(μ5-dpzpda)4Cl2] (Ni5-N5-2pz) and tetracyclic copper complex (II) [Cu4(Hdpzpda)2(CH3COO)6] (Cu4-N5-2pz). Anticorrosion impact of these solutions on carbon steel Сt20 was studied on the model of produced water saturated with carbon dioxide (CO2) in the medium of hydrogen sulphide with different concentrations (H2S). Biocide properties of developed solutions against corrosion bacteria (sulphate-reducing bacteria, Tionand hydrocarbon oxidizing bacteria) have been studied on the samples of produced water taken from flooded production wells of “Bibiheybat” OGPD as well and good results obtained.

Synthesis of hydrogen sulfide corrosion inhibitors for oil production

2013 ◽  
Vol 53 (6) ◽  
pp. 423-425 ◽  
Author(s):  
A. M. Magerramov ◽  
M. R. Bairamov ◽  
Sh. B. Khoseinzade ◽  
M. A. Agaeva ◽  
G. M. Mekhtieva ◽  
...  
Keyword(s):  
Hydrogen Sulfide ◽  
Corrosion Inhibitors ◽  
Oil Production ◽  
Sulfide Corrosion ◽  
Hydrogen Sulfide Corrosion
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