Solution of The Problem of Advancing The Displacement Front During The Production of The Oil Well of The Russkoye Gas-Oil Field

2021 ◽  
Author(s):  
A.V Shirokikh
Keyword(s):  
Oil Field ◽  
Oil Well ◽  
Gas Oil ◽  
Displacement Front

Downhole CO2 partial pressure calculation and tubing material selection – a case study of an offshore oil field in the South China Sea

2016 ◽  
Vol 63 (5) ◽  
pp. 414-420 ◽  
Author(s):  
Wei Yan ◽  
Yong Xiang ◽  
Wenliang Li ◽  
Jingen Deng
Keyword(s):  
Partial Pressure ◽  
Pressure Profile ◽  
Field Application ◽  
Separation Process ◽  
Oil Field ◽  
Oil Well ◽  
Content Type ◽  
Calculating Method ◽  
Oil Gas

Purpose This paper aims to establish the downhole CO2 partial pressure profile calculating method and then to make an economical oil country tubular goods (OCTG) anti-corrosion design. CO2 partial pressure is the most important parameter to the oil and gas corrosion research for these wells which contain sweet gas of CO2. However, till now, there has not been a recognized method for calculating this important value. Especially in oil well, CO2 partial pressure calculation seems more complicated. Based on Dolton partial pressure law and oil gas separation process, CO2 partial pressure profile calculating method in oil well is proposed. A case study was presented according to the new method, and two kinds of corrosion environment were determined. An experimental research was conducted on N80, 3Cr-L80 and 13Cr-L80 material. Based on the test results, 3Cr-L80 was recommended for downhole tubing. Combined with the field application practice, 3Cr-L80 was proved as a safety and economy anti-corrosion tubing material in this oil field. A proper corrosion parameter (mainly refers to CO2 partial pressure and temperature) can ensure a safety and economy downhole tubing anti-corrosion design. Design/methodology/approach Based on Dolton partial pressure law and oil gas separation process, CO2 partial pressure profile calculating method in oil well is proposed. An experimental research was conducted on N80, 3Cr-L80 and 13Cr-L80 material. A field application practice was used. Findings It is necessary to calculate the CO2 partial pressure properly to ensure a safety and economy downhole tubing (or casing) anti-corrosion design. Originality/value The gas and oil separation theory and corrosion theory are combined together to give a useful method in downhole tubing anti-corrosion design method.

Co Flooding Lifting Technology in Oil Well with High Gas-Oil Ratio in Low Permeability Oilfield

2013 ◽  
Author(s):  
Feng Wang ◽  
Ruo Sheng Pan ◽  
Dongmei Ma ◽  
Yingan Zhang ◽  
Guojun Yin
Keyword(s):  
Low Permeability ◽  
Oil Well ◽  
Gas Oil

Alaskan Transportation: An Overview of Some Aspects of Transporting Alaskan Crude Oil

1979 ◽  
Vol 16 (03) ◽  
pp. 211-224
Author(s):  
Stanley Factor ◽  
Sandra J. Grove
Keyword(s):  
Crude Oil ◽  
Gulf Coast ◽  
The United States ◽  
Oil Field ◽  
Oil Well ◽  
Paper Briefly ◽  
The North ◽  
Prudhoe Bay ◽  
Design Construction ◽  
Commercial Oil

The first commercial oil well in Alaska was drilled in 1901, but it was in 1968 that Alaska was thrust into prominence as an oil producer with the discovery of the Prudhoe Bay field, the largest oil field ever found in the United States. This paper briefly explores the transportation-related aspects of the design, construction, and operation of the pipeline and support facilities. The pipeline terminates at Port Valdez on Prince William Sound. It is from here that the second leg of the journey to the energy-hungry lower 48 states begins. A thoroughly modern and unique marine transportation system is being utilized to transport approximately 1.2 million barrels (191 000 m3) per day of Alaskan crude oil to West and Gulf Coast refineries. The Valdez Terminal, the pipeline, the North Slope supply, and vessel particulars and operations are discussed; in addition, environmental and legal problems are outlined.

Research on Factors and Model of Water Production of Bottom Water Reservoir

2012 ◽  
Vol 594-597 ◽  
pp. 2590-2597
Author(s):  
Liang Zhang ◽  
Yi Zuo Shi ◽  
Chang Hui Yan ◽  
Xiao Xiong Wu ◽  
Pan Zhao ◽  
...  
Keyword(s):  
Bottom Water ◽  
Water Reservoir ◽  
Oil Field ◽  
Control Measures ◽  
High Yield ◽  
Oil Well ◽  
Water Production ◽  
Mode Water ◽  
Production Mode ◽  
Tahe Oil Field

In block one of Tahe oil field, the Triassic Lower Oil Formation sand with a low-amplitude anticline has a characteristic of bottom water reservoir and a uniform oil/water contact, bottom water is energetic, natural water drive, rock and fluid depletion drive. With the continuous development, oilfield has entered high water cut stage, bottom water coning is significant, oil well has rising of the water content and production decline. Summarized influencing factors of water production and water production mode in block one of Tahe oil field. According to water production factors of oil well, we draw four kinds of water production mode: water production mode of tectonic position, water production mode of poor fault-sealing prediction, water production mode of developed into inter-layers, water production mode of high specific inflow segments. Putting forward four kinds of water production mode provide a theoretical basis to control measures for high yield water of later oil well.

scholarly journals Effects of oil field brine wastewater on saturated hydraulic conductivity of smectitic loam soils

2016 ◽  
Vol 96 (4) ◽  
pp. 496-503 ◽  
Author(s):  
Nathan E. Derby ◽  
Francis X.M. Casey ◽  
Thomas M. DeSutter
Keyword(s):  
Hydraulic Conductivity ◽  
Water Flow ◽  
Great Plains ◽  
Crop Production ◽  
Saturated Hydraulic Conductivity ◽  
Oil Field ◽  
Oil Well ◽  
High Sodium ◽  
Saturated Water ◽  
Western North Dakota

Spills of brine wastewater produced during oil well drilling are occurring more frequently in the Great Plains, resulting in crop production loss on affected soil. Remediation requires removal of salt from the topsoil, which might be accomplished by leaching to subsurface horizons or subsurface drains. A laboratory study determined the effects of brine on saturated hydraulic conductivity (Ks) of four nonimpacted surface soils from western North Dakota, USA. Repacked soil cores were subjected to saturated water flow, followed by one pore volume of brine. Subsequent saturated water flow leached brine from the soil and reduced Ks as much as 97% (0.086–0.003 cm h−1) within 24 h. Effluent total dissolved solids (TDS) approached 250 000 mg L−1 then declined (5 mg L−1) with continued leaching, but Ks did not increase. Removal of soluble salts during leaching increased the relative sodium concentrations (ESP > 55), causing clay swelling/dispersion and reduced Ks. Postbrine gypsum application (11.2 Mg ha−1) to replace exchangeable sodium with calcium did not improve Ks. This evidence suggests that if subsurface drainage is used for reclaiming brine-impacted soils that special attention be given to where dispersion/swelling is occurring, leaching water quality, and closely positioning calcium amendments within the high sodium zones.

Conversion of an Unprofitable Multireservoir Gas/Oil Field Into an Attractive Development Object

1998 ◽  
Author(s):  
S. Zakirov ◽  
A. Brusilovsky ◽  
E. Zakirov ◽  
I. Zakirov ◽  
V. Piskarev ◽  
...  
Keyword(s):  
Oil Field ◽  
Gas Oil

scholarly journals Analysis of Wellhead Uplift in Offshore Thermal Recovery by Using Finite Element Numerical Simulation

2018 ◽  
Vol 2018 ◽  
pp. 1-7
Author(s):  
Shexia Dong ◽  
Dongsheng Zhuang ◽  
Gongming Ji ◽  
Chunming Zhu ◽  
Ting Sun
Keyword(s):  
Finite Element ◽  
Total Elongation ◽  
Thermal Recovery ◽  
Operating Conditions ◽  
Oil Field ◽  
Oil Well ◽  
Test Results ◽  
Element Analysis ◽  
Simulation Calculation ◽  
Finite Element Numerical Simulation

Pilot test of complex thermal fluid recovery technology was conducted in NB35-2 heavy oil field. Wellhead uplift was detected among some oil wells, and development of offshore thermal recovery technology could be restricted by the serious safety problems behind. This paper is based on the specific operating conditions of one oil well in the trial block, and the simulation calculation of casing elongation and wellhead uplift are conducted by using finite element analysis. The total casing elongation calculated is 4.2 cm, which is consistent with the field test results. According to the research, we concluded that the wellhead uplift is caused by upper casing elongation. 88% of the total elongation happens in the air and seawater sections. Elongation is lesser in strata and the casing string below 360 m can be considered as anchored.

Design of the Oil Well Gets Remote Monitoring System Based on GoAhead

2014 ◽  
Vol 926-930 ◽  
pp. 3501-3504
Author(s):  
Bin Zhou ◽  
Xin Liu ◽  
Yu Juan Qin
Keyword(s):  
Development Strategy ◽  
Oil Field ◽  
Oil Well ◽  
Information Control ◽  
Control Center ◽  
Field Development ◽  
Remote Monitoring System ◽  
Control Functions ◽  
Control Instrument ◽  
Embedded Web

With the development of embedded technology and the Internet, the embedded Web server, GoAhead is embedded in the monitored Wells hardware equipment to realize automatic control functions, namely far away from the well control center can remotely access GoAhead just with the standard browser, you can see the well gets information, control instrument and parameters of the well. The system is beneficial to reservoir management department timely diagnose pathological production conditions, to analysis the reservoir changes and plan scientifically the oil field development strategy.

Analytic and Numerical Solutions of Load and Stress of Casing and Cement in Cementing Section

2012 ◽  
Vol 268-270 ◽  
pp. 721-724
Author(s):  
Zhan Qu ◽  
Xiao Zeng Wang ◽  
Yi Hua Dou
Keyword(s):  
Finite Element ◽  
Stress Distribution ◽  
Analytical Solutions ◽  
Numerical Solutions ◽  
Element Model ◽  
In Situ Stress ◽  
Oil Field ◽  
Oil Well ◽  
Production Term

With the prolonged production term and the stimulation of the oil well in oil-field, the load which results from the in-situ stress is one of the main reasons to the casing damage. Taking the casing in Cementing section, the cement and the rock surrounding the cement into consideration, a mechanical model is established, while analytical solutions of displacement and stress distribution is obtained. The finite element method is adopted to obtain the numerical solutions of the mechanics model. The result shows that analytical solutions and finite element solutions are approximate. Finite element model of casing/cement/formation which is established in the paper can be used to analyze the load and stress distribution of worn casing with non-uniform in-situ stress.

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