scholarly journals SO2 and NOx Analysis from Low Pressure Flares in South Pars Gas Field in Iran

2018 ◽  
Vol 3 (3) ◽  
Keyword(s):  
Low Pressure ◽  
Gas Field

scholarly journals Vapor Recovery from Condensate Storage Tanks Using Gas Ejector Technology

2013 ◽  
Vol 27 ◽  
pp. 37-41
Author(s):  
Palash K Saha ◽  
Mahbubur Rahman
Keyword(s):  
Natural Gas ◽  
Chemical Engineering ◽  
Economic Loss ◽  
Low Pressure ◽  
Heat Energy ◽  
Environmental Concerns ◽  
Storage Tanks ◽  
Gas Field ◽  
Recovery Unit ◽  
Yearly Saving

This paper demonstrates a method of recovering the low pressure vapor from the condensate tanks in the Bibiyana gas field. This method uses a gas ejector as a device to compress the low pressure natural gas from the condensate tanks to an intermediate pressure, which would then be fed into the intermediated stage of the existing vapor recovery unit. Thus the natural gas will be saved which would have been otherwise flared. The amount of tank vapor is estimated by different methods, which shows a significant amount of gas is now being flared. Flaring of gas is a problem which entails both economic loss and environmental concerns. It is estimated that, on the average 190 MSCFD tank vapor can be recovered using the proposed method involving a gas ejector. Thus yearly saving would be about 68 MMSCF of natural gas. The equivalent heat energy saving is about 74.55X109 BTU. In terms of greenhouse gas emissions, this project will reduce about 1,112 tons of CO2 emissions per year in the gas plant locality. DOI: http://dx.doi.org/10.3329/jce.v27i1.15856 Journal of Chemical Engineering, IEB Vol. ChE. 27, No. 1, June 2012: 37-41

Logging Identification Technology of Sedimentary Facies and Gas Layers within Low Pressure, Low Permeability and Low Abundance Gas Reservoirs: Example from SQW Block of the Sulige Gas Field, Ordos Basin, China

2012 ◽  
Vol 616-618 ◽  
pp. 96-99
Author(s):  
Fang Lu ◽  
Xin Jiang Du ◽  
Zhi Jun Mao ◽  
Yan Zhou ◽  
Yue Bin Cui ◽  
...  
Keyword(s):  
Ordos Basin ◽  
Sedimentary Facies ◽  
Low Pressure ◽  
Low Permeability ◽  
Braided River ◽  
Gas Reservoirs ◽  
Gas Field ◽  
Exploration Target ◽  
The Ordos Basin ◽  
Gas Potential

Sulige Gas Field is located in the Suligemiao area, northwest of the Ordos Basin, with a prospecting area of about 4×104km2. Owing to the strong heterogeneity in the SQW Block, one of exploration blocks in the Sulige Gas Field, remains reservoir characteristics of the gas field: lithologic gas reservoirs with characteristics of “three low” (low pressure, low permeability and low abundance). The He8 member of the Shihezi formation, the major exploration target, is deposited in braided river environment. The conventional logging data is very useful to indentify different facies and to estimate gas potential. The technology of discrimination with sedimentary facies and gas layers using logging data is established in this paper. We use the technology combining with AVO and other exploration methods to pick out 4 favorable exploration target areas with the success rate of more than 80%.

Development of Economical Gas-tight Casing Connection for Low Pressure Gas Field Application

2011 ◽  
Author(s):  
Jiandong Wang ◽  
Lineng Yang ◽  
Shengyin Song ◽  
Xiaoming Yi ◽  
Dongfeng Li ◽  
...  
Keyword(s):  
Low Pressure ◽  
Field Application ◽  
Gas Field ◽  
Gas Tight

Low-Pressure Gas Field Operations in Leman

1994 ◽  
Author(s):  
W.C. Dyck ◽  
R.M. Moore
Keyword(s):  
Low Pressure ◽  
Gas Field

scholarly journals The problem of abnormally low formation pressure on the oil and gas fields in Ukraine

2020 ◽  
pp. 17-22
Author(s):  
A. Pokhylko
Keyword(s):  
Pressure Gradient ◽  
Oil And Gas ◽  
Low Pressure ◽  
Formation Pressure ◽  
Gas Field ◽  
Oil And Gas Fields ◽  
Geological Conditions ◽  
Remaining Oil ◽  
Oil And Gas Field ◽  
Gas Fields

The article presented information about specific of geological conditions depleted oil and gas fields, which has Remaining Oil and Gas in Place. The reasons of abnormally low pressure nascency in the deposit has been analyzed. The article presents information about influence of geodynamic processes and structural and tectonics of Earth crust to formation pressure. The information about availability of initial abnormally low formation pressure in Ukrainian Oil and Gas-Condensate fields has been written. Supposition of nascence the abnormally low formation pressure in difficult oil/water/gas saturation geological formation has been analyzed. The drop of pressure in of initial formation has been analyzed and researched. The article presented that drop of pressure gradient in main Ukrainian oil and gas fields is equal to the value of abnormally low formation pressure.The problems of considerable remaining Oil and Gas in with abnormally low pressure in Ukrainian oil and gas field deposit has been analyzed. The information about oil and gas reservoir conditions of depleted field and brown fields in Ukraine has been analyzed.The plot of the formation pressure gradient decreasing for Chornukhynske, Denysivske, Solokhivske, Druzheliubivske, Tymofiivske and Yablunivske fields has been presented. The drop of pressure to abnormally low in Chornukhynske, Denysivske, Solokhivske, Druzheliubivske, Tymofiivske and Yablunivske fields has been established. The problems of drilling and cementing in the well with abnormally low pressure has been describe. Difficult geological conditions in Ukrainian oil and gas field deposit has been analyzed.The article shows the importance to control parameters of all technological liquids, especially density of drilling and cementing liquid in a time of drilling well with abnormally low pressure. The article shows the aspect of the using of lightweight grouting solutions for mounting wells with abnormally low reservoir pressures, the importance of controlling the contamination of the bottom zone of the formation and preventing the occurrence of hydraulic fracturing during cementing.

Development of Economical Gas-tight Casing Connection for Low Pressure Gas Field Application

2011 ◽  
Author(s):  
Jiandong Wang ◽  
Lineng Yang ◽  
Shengyin Song ◽  
Xiaoming Yi ◽  
Dongfeng Li ◽  
...  
Keyword(s):  
Low Pressure ◽  
Field Application ◽  
Gas Field ◽  
Gas Tight

scholarly journals Organic Matter Pore Characterization of the Wufeng-Longmaxi Shales from the Fuling Gas Field, Sichuan Basin: Evidence from Organic Matter Isolation and Low-Pressure CO2 and N2 Adsorption

Energies ◽  
2019 ◽  
Vol 12 (7) ◽  
pp. 1207 ◽  
Author(s):  
Zhuo Li ◽  
Zhenxue Jiang ◽  
Hailong Yu ◽  
Zhikai Liang
Keyword(s):  
Organic Matter ◽  
Pore Volume ◽  
Sichuan Basin ◽  
Weight Ratio ◽  
Total Pore Volume ◽  
Low Pressure ◽  
N2 Adsorption ◽  
Sem Images ◽  
Gas Field ◽  
Flow Mechanisms

Organic matter (OM) pores are significant for shale gas accumulation and flow mechanisms. The pores of Wufeng-Longmaxi (W-L) shale in the Sichuan Basin, China have been extensively characterized, however, the proportion of OM pores in this shale have not been adequately discussed. In this study, the contribution of OM pores to the total pore volume of W-L shale was quantitatively studied through the analysis of OM isolation, field emission scanning electron microscopy (FE-SEM) and low-pressure CO2 and N2 adsorption (LPGA). FE-SEM images showed abundant OM pores, interparticle pores and intraparticle pores with various shapes and widths in the W-L shales. The pore size distribution (PSD) of the isolated OM from five shale samples showed a consistent, unimodal pattern. The pore volume of isolated OM was greater than that of the bulk shale samples, suggesting that OM is more porous than the inorganic compositions in shales. The average contribution of OM to the volumes of micropores, mesopores and macropores was 58.42%, 10.34% and 10.72%, respectively. Therefore, the pore volume of the W-L shale was dominantly related to inorganic minerals. This was probably due to the small weight ratio of OM in the shale samples (1.5 wt%–4.2 wt%). The findings of this study reveal the different effects of OM and minerals on pore development, and provide new insights into the quantitative contribution of OM pores to the total pore volume of the W-L shale.

Development and Application of Metering Instrument for Well-Head Metering in Block 75 of Sulige Gas Field

2013 ◽  
Vol 706-708 ◽  
pp. 762-764
Author(s):  
Li Na Wang ◽  
Li Jun Liu ◽  
Wan Xun Wang ◽  
Shan Yang Qin
Keyword(s):  
High Pressure ◽  
High Precision ◽  
Large Scale ◽  
Low Cost ◽  
Low Pressure ◽  
Gas Production ◽  
Temperature Drift ◽  
Gas Field ◽  
Well Production ◽  
Single Well

Along with large scale application of cluster wells in Sulige gas field, the common low pressure flow meter can not be used in metering single well production with connecting wells in series. For this reason, we have developed a flow metering instrument of natural gas, which has the features of high static pressure, low differential pressure and high precision. Installed at the high pressure end of gas production wellhead, the instrument can bear 40Mpa static high pressure and has the features such as low pressure loss, broad measuring range, small temperature drift, high precision, long service life, solid, low cost and so on. With required measurement accuracy and resistance to pressure, which have been verified by the wide application, the instrument gave a solution to metering single well production of cluster wells.

scholarly journals Analysis on hydraulic adaptability and pressure drop factors of low-pressure pipe network in coal-bed methane field

2017 ◽  
Vol 9 (2) ◽  
pp. 168781401769394
Author(s):  
Yang Yongan ◽  
Yang Juntao ◽  
Lei Jingyi ◽  
Li Jiajia
Keyword(s):  
Pressure Drop ◽  
Low Pressure ◽  
Inlet Pressure ◽  
Coal Bed ◽  
Coal Bed Methane ◽  
Wall Roughness ◽  
Pipe Network ◽  
Gas Field ◽  
Wellhead Pressure ◽  
Pipeline Pressure

Because the coal-bed methane field is influenced by factors such as low pressure, slow velocity, terrain, and condensed water, which lead to the fact that the design is different from gathering design of conventional gas field, how to make full use of wellhead pressure and maximize the wellhead pressure ability is an important link of surface engineering optimization. Therefore, we need to analyze the factors which influence the pressure drop of the gas-gathering pipe network to improve the efficiency of the coal-bed methane field surface gathering. We first contrasted the two hydraulic analysis software (PIPEPHASE and TGNET) for the analysis of coal seam gas field adaptability. By comparing the simulation results with the actual data, we found that the PIPEPHASE software is better to analyze the hydraulic situation of pipe network in the coal-bed methane field. Then, using PIPEPHASE for network simulation and contrasting the 9 state equations and 26 kinds of pressure drop formula calculation results, SRK state equation and BBM pressure drop formula are recommended. We analyze the inlet temperature, pressure, and other nine factors affecting gas extraction pipeline pressure drop according to the practical experience and put forward the suggestions as follows: (1) in order to reduce the pressure drop and increase the ability of pipeline, burying pipeline under the permafrost and improving the inlet pressure are suggested; (2) The higher the inlet pressure, the more obvious the pipeline efficiency influences the pipeline pressure drop, so the inlet pressure and pipeline efficiency should be reasonably controlled in order to reduce the pressure drop; (3) The higher the pipeline pressure, the greater the wall roughness influences the pipeline pressure drop, also the greater the pressure can damage, so we should try to use small wall roughness materials.

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