Sucker Rod Antibuckling System: Development and Field Application

2021 ◽  
pp. 1-16
Author(s):  
Clemens Langbauer ◽  
Rudolf Konrad Fruhwirth ◽  
Lukas Volker
Keyword(s):  
Large Scale ◽  
Low Cost ◽  
Cost Optimization ◽  
Field Application ◽  
Oil Field ◽  
Oil Fields ◽  
Test Facility ◽  
System Efficiency ◽  
Pumping System ◽  
Sucker Rod

Summary When the oil price is low, cost optimization is vital, especially in mature oil fields. Reducing lifting costs by increasing the mean time between failure and the overall system efficiency helps to keep wells economical and increase the final recovery factor. A significant portion of artificially lifted wells currently use sucker rod pumping systems. Although its efficiency is in the upper range, there is still room for improvement compared with other artificial-liftsystems. This paper presents the field-tested sucker rod antibuckling system (SRABS), which prevents buckling of the entire sucker rod string, achieved by a redesign of the standing valve, the advantageous use of the dynamic liquid level, and, on a case-by-case basis, application of a tension element. The system allows full buckling prevention and a reduction of the overall stresses in the sucker rod string. The resulting reduction in the number of well interventions combined with the higher system efficiency prolongs economic production in mature oil fields, even in times of low oil prices. The analysis of SRABS, using finite-element simulations, showed a significant increase in system efficiency. The SRABS performance and wear tests under large-scale conditions were performed at Montanuniversität Leoben’s Pump Test Facility and in the oil field. The results of intensive laboratory testing were used to optimize the pump-body geometry and improve the wear resistance by selecting optimal materials for the individual pump components. The ongoing field-test evaluation confirmed the theoretical approach and showed the benefits achieved by using SRABS. SRABS itself can be applied within every sucker rod pumping system; the installation is as convenient as a standard pump, and manufacturing costs are comparable with those of a standard pump. This paper shows improved performance of the SRABS pumping system compared with a standard sucker rod pump. SRABS is one of the first systems that prevents the sucker rod string from buckling without any additional equipment, such as sinker bars. Testing of SRABS has identified significant benefits compared with standard sucker rod pumps.

The Application and Evaluation of the Heat Medium Heater in Changqing Oil Field Production

2013 ◽  
Vol 291-294 ◽  
pp. 1653-1656
Author(s):  
Xu Feng Chen ◽  
Cui Hua Zhao ◽  
Jia Ming Zhou ◽  
Hai Jing Shen
Keyword(s):  
Large Scale ◽  
Field Application ◽  
Heating Furnace ◽  
Oil Field ◽  
Field Energy ◽  
Steam Boiler ◽  
Heating Equipment ◽  
Safe Production ◽  
New Type ◽  
Save Energy

As a new type of heating equipment, the heat medium heater furnace overcomes the shortage of the traditional heating methods such as the boiler, heating furnace. Through the comparison and analysis of the field application between the heat medium heater, YQWP - 4000/1.6/220/180-QT, and steam boiler in a central gathering station of Changqing oil field, results indicated: in the condition of 0.3 MPa pressure and 200 °Ctemperature above, the heat medium heater is higher thermal efficiency, more safety and security than steam boiler, and it do not pollute the environment and significantly save energy. One the heat medium heater saves by 982700 RMB than one set of steam boiler per each year. Due to the good economy, heat medium heater is suitable for the heating and heat supply of the large-scale central gathering station in the oil field. Thus, heat medium heater has a good application prospects. And the field application of the heat medium heater provides oil field energy saving and safe production with a certain reference in oil field.

scholarly journals Research on solutions for connecting to marginal fields at Cuu Long basin to process and transport the products basing on existing petroleum technology and equipment

2021 ◽  
Vol 62 (3a) ◽  
pp. 65-75
Author(s):  
Thinh Van Nguyen ◽  
Keyword(s):  
Crude Oil ◽  
Large Scale ◽  
Oil Production ◽  
Oil Field ◽  
Oil Fields ◽  
Small Scale ◽  
Oil Drilling ◽  
Doi Moi ◽  
Oil Deposits

The Cuu Long basin is equiped with infrastructures and processing facilities serving for large-scale crude oil drilling and production operations. However, most of resevoirs in this area are now depleted, it means that they have reached their peaks and started to undergo decreasing productivity, which lead to a noticable excess capicity of equipment. In order to benefit from those declined oil fieds and maximize performance of platforms, solutions to connect marginal fields have been suggested and employed. Of which, connecting Ca Ngu Vang wellhead platform to the CPP -3 at Bach Ho oil field; platforms RC-04 and RC-DM at Nam Rong - Doi Moi oil filed to RC-1 platform at Rong oil field; wellhead platforms at Hai Su Den and Hai Su Trang oil fields to H4-TGT platform at Te Giac Trang oil field are typical examples of success. Optimistic achivements gained recently urges us to carry out this work with the aim to improve oil production of small reserves and to make best use of existing petroleum technology and equipment at the basin. Results of the research contribute an important part in the commence of producing small-scale oil deposits economically.

scholarly journals Field Application of Microbial Self-Healing Cement Slurry in Chunguang 17-14 Well

Energies ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1544
Author(s):  
Lixia Li ◽  
Tianle Liu ◽  
Guosheng Jiang ◽  
Changliang Fang ◽  
Jiaxin Sun ◽  
...  
Keyword(s):  
Mechanical Strength ◽  
Large Scale ◽  
High Efficiency ◽  
Low Cost ◽  
Field Application ◽  
Oil Wells ◽  
Dairy Wastewater ◽  
Self Healing ◽  
Cement Slurry ◽  
Calcium Carbonate Precipitation

Due to the inappropriate treatment of dairy wastewater, which can easily cause underground water pollution, there is an increasing need for a novel approach to reuse dairy wastewater. The technology of microbially induced calcium carbonate precipitation with environmentally friendly characteristics and high efficiency has been widely used for underground infrastructure remediation. However, there is a lack of in-depth research on the application of this technology under extreme underground environments, such as the borehole of oil wells with high temperature, high pressure, alkaline, and aerobic conditions. In addition, to reduce the cost of this technology when applied on a large scale, we adopted dairy wastewater to cultivate bacteria. Then, we put the bacterial solution into cement slurry in the borehole to improve the cementing quality. In this paper, the rheology properties, mechanical strength, permeability, porosity, and pore distribution of microbial cementing slurry were studied. Moreover, we applied this microbial cement slurry in the Chunguang 17-14 well of China, and the sealing channeling ability of cement sheath on site was evaluated. The results showed that dairy wastewater could serve as an alternative medium to provide nutrients and energy for the growth of bacteria with low cost. Additionally, the microbial cement slurry exhibited a good right-angle thickening performance and high mechanical strength. The field application displayed an anti-gas channeling ability after microbial remediation. The application of dairy wastewater incubated bacteria to cement slurry not only provides an alternative method for the reuse of dairy wastewater but is also conducive to prolonging the lifespan of oil wells.

scholarly journals Optimization and Application of Reciprocating Direct-Drive Electric Submersible Plunger Pump Lifting System in the Xinjiang Oilfield

2019 ◽  
Vol 13 (1) ◽  
pp. 68-80 ◽  
Author(s):  
Derong Lei ◽  
Xiaodong Huang ◽  
Hui Zhang ◽  
Mancang Yao ◽  
Ruixiang Chen ◽  
...  
Keyword(s):  
Selection Process ◽  
Field Application ◽  
Pump Efficiency ◽  
Direct Drive ◽  
Plunger Pump ◽  
Pumping System ◽  
Savings Rate ◽  
Sucker Rod ◽  
Working Parameters ◽  
Lifting System

Background: A reciprocating direct-drive electric submersible plunger pump (RDD-ESPP) lifting system is an innovative rodless lifting method, which uses a downhole linear motor to directly drive the plunger pump to lift the fluid. This method effectively overcomes the problems encountered in a conventional sucker rod pumping system, such as severe eccentric wear between the sucker rod and the tubing, higher energy consumption and frequent pump maintenance. Objective: In this manuscript, the objective is to propose a methodology on optimizing the working parameters of RDD-ESPP lifting system and validate the theory with field case. Methods and Results: Mathematical models for the wellbore temperature distribution, lifting load, pump efficiency, system efficiency and tubing strength validation are established. A selection process for the optimal working parameters is proposed, and a parameter sensitivity analysis is implemented. The results show that pump efficiency is largely affected by gas and leakage, and there are reasonable pump submergence depths in oil wells for different produced gas-to-oil ratios. A field application test in a low-production well resulted in a 33.5% power savings rate and 41.6% improvement in the pump efficiency. Conclusion: RDD-ESPP lifting system has a promosing potential on power savings and consumption reduction compared with conventional sucker rod pumping system.

scholarly journals Cost Optimization in the Operation of Gearbox of Rocking Machine

2020 ◽  
Vol 126 (1) ◽  
pp. 40-42
Author(s):  
L. М. Akhmetzyanov ◽  
Keyword(s):  
Large Scale ◽  
Cost Optimization ◽  
Oil Production ◽  
Scale Problem ◽  
Production Well ◽  
Technical Problems ◽  
Sucker Rod ◽  
Mechanized Method ◽  
Pumping Units ◽  
Technical Solutions

In this article, technical solutions aimed at optimizing production processes in the field of operation of equipment of the production well stock are considered. In the process of a mechanized method of oil production by sucker-rod pumping units, there are a number of technical problems that have a serious impact on the efficiency of operation of the production stock of wells and, in general, on the volume of oil production. A large-scale problem in the operation of pumping units is oil leakage on drive gearboxes.

scholarly journals Cost Optimization and Flexibility Analysis for the Liquefaction of an Associated Natural Gas Stream

2019 ◽  
Vol 142 (6) ◽  
Author(s):  
Saeed Eini ◽  
Georgios M. Kontogeorgis ◽  
Davood Rashtchian
Keyword(s):  
Natural Gas ◽  
Gas Flow ◽  
Cost Optimization ◽  
Oil Field ◽  
Methane Content ◽  
Oil Fields ◽  
Small Scale ◽  
Associated Gas ◽  
Flexibility Analysis ◽  
Flow Fluctuations

Abstract Liquefaction and then transportation to the market is one of the promising options for the utilization of associated natural gas resources which are produced in oil fields. However, the flow of such resources is normally unsteady. Additionally, the associated gas in one oil field may exhaust in a few years and the liquefaction plant should be moved to another oil field with different specifications. In order to tackle such challenges, liquefaction systems not only must be optimally designed and operated but also should be flexible with respect to the gas flow fluctuations. The flexibility analysis of such processes is usually ignored in the optimization studies. In this research, first, the economic performance of two small-scale liquefaction processes (a single mixed-refrigerant process, SMR, and a nitrogen expander process) was optimized and compared. The results showed that the SMR process is economically more attractive (49% lower lifecycle cost compared to the nitrogen expander process). As a post-optimization step, flexibility analysis was performed to investigate the ability of optimal designs in overcoming gas flow fluctuations. For this purpose, five-thousand feed samples with different flowrate and methane content were supposed which formed a feasibility-check region. The results showed that with respect to the design constraints, the optimal SMR process is more flexible and feasibly operates in the entire region. However, the nitrogen expander process cannot feasibly operate for the gas feed with high flowrate and low methane content.

Research on Corrosion Rate of Sucker Rod Steel 20Ni2Mo in Wet H2S Environment

2015 ◽  
Vol 814 ◽  
pp. 319-324 ◽  
Author(s):  
Wen Tao Qu ◽  
Si Ying Liu ◽  
Zhang Shi Xu
Keyword(s):  
Corrosion Rate ◽  
Oil And Gas ◽  
Oil Field ◽  
Oil Fields ◽  
Safe Operation ◽  
Oil And Gas Fields ◽  
Petroleum Equipment ◽  
Sucker Rod ◽  
Gas Fields ◽  
Oil Field Exploitation

Among the factors to cause the corrosion in oil and gas fields, H2S is the most common and harmful corrosive medium. During oil field exploitation, enhancing the ability of the sucker rods to resist corrosion is the key measure of prolonging the service life of sucker rods and guarantee of safe operation of petroleum equipment. This paper focuses on the corrosion of sucker rod steel 20Ni2Mo in different concentrations or temperatures of H2S. The appearance of corrosive surface scanned by scanning electron microscope was analyzed and theoretic basis for anti-corrosion and material-selecting of sucker rods used in the oil fields was provided. The result shows that the concentration and temperature of H2S have interaction on the corrosion of 20Ni2Mo, i.e., with the increase of concentration under same temperature or with the rise of temperature under same concentration, the corrosion rate of 20Ni2Mo accelerates.

scholarly journals The Effect of Surfactant Polymer Concentration on the Distribution of Oil Drainage Area in Heterogeneous Reservoir

2021 ◽  
Vol 1 (1) ◽  
pp. 634-643
Author(s):  
Suranto Suranto ◽  
Ratna Widyaningsih ◽  
M. Anggitho Huda
Keyword(s):  
Oil Recovery ◽  
Large Scale ◽  
Polymer Concentration ◽  
Oil Field ◽  
Oil Fields ◽  
Polymer Injection ◽  
Heterogeneous Reservoir ◽  
Reservoir Models ◽  
Left Corner ◽  
Polymer Surfactant

The use of chemical injection has been widely used in the oil field on a large scale. One of the enhanced oil recovery (EOR) methods to increase production from old oil fields is through polymer surfactant injection, which functions to reduce interfacial tension and water-oil mobility ratio. This study focuses on developing a simulation model for chemical injection of polymer surfactant reservoirs by hypothetically making heterogeneous reservoir models in each layer with dimensions of 10x10x4. It consists of one a vertical well which is producer well located at the top of the left corner and one an injection well which is located at the bottom of right corner. This study shows a comparison between surfactant injection, polymer injection and SP injection using the same surfactant and polymer concentration with a concentration of 1000 ppm with 0.3 PV. Oil recovery in polymer injection turned out to be quite high compared to other chemical injections. In polymer injection, the oil recovery was 4.17%. Meanwhile, surfactant injection and SP injection increased by 0.59% and 0.61, respectively.

Application and Design of Plunger Pump Lifting Viscoelastic Fluid

2011 ◽  
Vol 291-294 ◽  
pp. 2507-2511
Author(s):  
Juan Li ◽  
Hong Zhi Yang ◽  
Mei Han ◽  
Jin Chao Xu ◽  
Xiao Dong Li ◽  
...  
Keyword(s):  
Laboratory Experiment ◽  
Viscoelastic Fluid ◽  
Large Scale ◽  
Field Application ◽  
Pump Efficiency ◽  
Plunger Pump ◽  
Implementation Effectiveness ◽  
Sucker Rod ◽  
Effective Reduction ◽  
Tertiary Recovery

Daqing Oilfield has more than 10,000 million kilograms of oil through tertiary recovery every year. However, eccentric wear of sucker rod and tubing severely impede the implementation effectiveness and large-scale utilization of tertiary oil production when injecting viscoelastic fluids containing polymer. Therefore, a plunger pump lifting viscoelastic fluid is designed based on the analysis of the mechanism of eccentric wear. The principle to reduce eccentric wear is increasing hydraulic and viscoelastic friction, and expanding clearance. Due to make use of the plunger pump lifting viscoelastic, laboratory experiment and field application have demonstrated effective reduction of eccentric wear, extend the life of the sucker rod and tubing, and improve pump efficiency.

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