Installation of A Sucker Rod Pumping System Over a Failed Electrical Submersible Pumping System to Recover Production Using Rigless Intervention

The surface dynamometer cards are important working condition data of sucker-rod pumping system. It has a very important practical significance for the analysis of transmission system and the diagnosis of oil production condition of sucker-rod pumping system. The pump dynamometer cards are important reference for the diagnosis of oil production condition, and its key technology is the identification of pump dynamometer cards. A new similar pattern recognition algorithm based on root-mean-square error (RMSE) is proposed, a theoretical model of the similarity matching algorithm based on RMSE is established, and the algorithm is studied and analyzed. The three-dimensional vibration mathematical models for the surface dynamometer cards are created, by which the surface dynamometer cards can be transformed to the pump dynamometer cards. The accuracy, reliability and stability between the algorithm of RMSE similarity matching and the classical algorithms of similarity pattern matching are studied. The research shows that the resistance to the graphics deformation of RMSE algorithm is the highest among all algorithms. The application of RMSE algorithm and classic similarity matching algorithms to the identification of real pump dynamometer cards and the fault diagnosis of oil wells indicates that the RMSE algorithm has very high identification reliability and accuracy. The remarkable feature of the RMSE algorithm is that it has very high identification accuracy for small difference, while the classical similarity matching algorithms do not have this feature.

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A Simple Method for Predicting the Performance of a Sucker-Rod Pumping System

10.2118/23429-ms ◽

1991 ◽

Cited By ~ 4

Author(s):

A. Khodabandeh ◽

S. Miska

Keyword(s):

Simple Method ◽

Pumping System ◽

Sucker Rod

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Sucker Rod Antibuckling System: Development and Field Application

SPE Production & Operations ◽

10.2118/205352-pa ◽

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.

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Analysis on Failure Mechanism of Sucker Rod Pumping System

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.875-877.1219 ◽

2014 ◽

Vol 875-877 ◽

pp. 1219-1224 ◽

Cited By ~ 1

Author(s):

Hua Liang ◽

Xun Ming Li

Keyword(s):

Influence Factors ◽

Work Conditions ◽

Water Pump ◽

Fault Probability ◽

Deep Well ◽

Pumping System ◽

Sucker Rod ◽

Comprehensive Survey ◽

Dynamometer Card ◽

Pumping Equipment

There is the higher fault probability under the bad work conditions of the rod pumping system.According to the failure of the sucker rod pumping installation, a comprehensive survey is carried out. There is many influence factors of deep well pump working downhole, not only influenced by the machine, wells, pumping equipment, but also by sand, wax, gas, water. Pump conditions can be diagnosed by surface dynamometer card, surface dynamometer card is the first-hand information collected in pumping well of oilfields. By analyze the Characteristics of the different fault dynamometer, Lay the foundation for the further fault diagnosis and prediction. The different pattern of the different dynamometer is important.

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