Long-Stroke Sucker-Rod Pumping

Takács, Gábor

doi:10.1016/b978-0-12-417204-3.00007-8

Cited by 20 publications

(11 citation statements)

References 9 publications

(3 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The valves (standing and travelling) are of extreme importance in the mechanical pump, so much so that Takacs [2] considers the valves as the heart of the whole system since all the efficiency of the pump depends on the correct functioning of the same. Based on this argument for a better system efficiency, the design of the valves should be as optimized as possible, especially when it comes to pumping fluids with high viscosity where the load losses are higher.…”

Section: Standing Valve Geo Metry and Co Mputatio Nal Do Mainmentioning

confidence: 99%

“…One of the most widely used lifting methods in the world is the Sucker-Rod Pump (SRP) mainly due to its simplicity of operation and widespread technical knowledge. ( [2], [3], [4]) In the onshore production of Northern Espírito Santo State (Brazil) this method has a great representativeness of use due to the fact that it has, in the majority, production of heavy oils besides being low depth wells. In addition, due to the need for cyclic steam injection, this is the most appropriate artificial elevation method [5].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A New Methodology to Analyze Fluid Pound in Sucker-Rod Pump Systems: Phenomenological Approach

Filho¹,

Silva²,

Segantine³

et al. 2019

IJAERS

View full text Add to dashboard Cite

Sucker-rod pump system is the most used artificial lift method in the world. Although used for more than a century at industrial scale, its working is not completely understood. The main tool employed to analyze operation is the dynamometric charts which is obtained with equipment already producing. A major problem found in these systems is the fluid pound that indicates a partial barrel filling with the producing fluid. This specific fluid pound problem is detectable by this tool but after the event occurs. In order to offer a tool at design stage, this study proposes an alternative method based on phenomenological flow modeling and rigorous geometry details. The method is based on Fluid Structure Interaction (FSI) technique in which both Computational Fluid Dynamics (CFD) and Rigid Body Analysis are solved simultaneously. The geometry used was comprised in the standing valve part of the subsurface pump. At the present stage, the model considers isothermal, incompressible single-phase turbulent flow. The aim of the methodology is to calculate the volume of fluid admitted into barrel at upstroke phase. It is proposed a fill parameter, which represents the fraction of filled barrel volume, to indicate the existence or not of fluid pound problem. The methodology allows to investigate several operational parameters. In the present paper, the stroke length, pressure intake and cycles per minute were investigate. The tendencies previewed by the methodology were in agreement with field observations, demonstrating the potential of this tool.

show abstract

Section: Standing Valve Geo Metry and Co Mputatio Nal Do Mainmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A New Methodology to Analyze Fluid Pound in Sucker-Rod Pump Systems: Phenomenological Approach

Filho¹,

Silva²,

Segantine³

et al. 2019

IJAERS

View full text Add to dashboard Cite

show abstract

“…The main components of sucker-rod pumping wells are the prime mover, the pumping unit, the rod string and the downhole pump. The pumping unit transforms the rotary motion of the prime mover into the reciprocating motion necessary to operate the downhole pump [ 2 ]. The rod string connects the downhole pump with the pumping unit.…”

Section: Introductionmentioning

confidence: 99%

“…The plunger contains the discharge valve (traveling valve) and the working barrel contains the suction valve (standing valve). The two valves operate on the ball-and-seat principle and work like check valves [ 3 ]. The advantages of sucker-rod pumping systems are the simplicity of operation, low maintenance cost, durability of the equipment, operation range of flow and depth, good energy efficiency and the possibility of working with fluids of different compositions [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

“…It is a graphic that records the load and position values of the polished rod during a pumping cycle (basic period of the pump’s operation). The shape of the surface dynamometer card can reveal how the pumping system is operating [ 3 ]. However, as the sensors are on the surface, degenerative effects caused by the propagation of the load along the rod string change the shape of the card.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Diagnostic of Operation Conditions and Sensor Faults Using Machine Learning in Sucker-Rod Pumping Wells

Nascimento

Maitelli

et al. 2021

Sensors

View full text Add to dashboard Cite

In sucker-rod pumping wells, due to the lack of an early diagnosis of operating condition or sensor faults, several problems can go unnoticed. These problems can increase downtime and production loss. In these wells, the diagnosis of operation conditions is carried out through downhole dynamometer cards, via pre-established patterns, with human visual effort in the operation centers. Starting with machine learning algorithms, several papers have been published on the subject, but it is still common to have doubts concerning the difficulty level of the dynamometer card classification task and best practices for solving the problem. In the search for answers to these questions, this work carried out sixty tests with more than 50,000 dynamometer cards from 38 wells in the Mossoró, RN, Brazil. In addition, it presented test results for three algorithms (decision tree, random forest and XGBoost), three descriptors (Fourier, wavelet and card load values), as well as pipelines provided by automated machine learning. Tests with and without the tuning of hypermeters, different levels of dataset balancing and various evaluation metrics were evaluated. The research shows that it is possible to detect sensor failures from dynamometer cards. Of the results that will be presented, 75% of the tests had an accuracy above 92% and the maximum accuracy was 99.84%.

show abstract

Online Sucker-Rod Pumping with Photovoltaic Driven System Sizing Tool for Oil and Gas Industrial Sector

Elyamany

Abdellatif

Ghali

2022

Artificial Intelligence and Online Engineering

View full text Add to dashboard Cite

Long-Stroke Sucker-Rod Pumping

Cited by 20 publications

References 9 publications

A New Methodology to Analyze Fluid Pound in Sucker-Rod Pump Systems: Phenomenological Approach

A New Methodology to Analyze Fluid Pound in Sucker-Rod Pump Systems: Phenomenological Approach

Diagnostic of Operation Conditions and Sensor Faults Using Machine Learning in Sucker-Rod Pumping Wells

Online Sucker-Rod Pumping with Photovoltaic Driven System Sizing Tool for Oil and Gas Industrial Sector

Contact Info

Product

Resources

About