Clemens Langbauer

Clemens Langbauer
Montanuniversität Leoben · Chair of Petroleum and Geothermal Energy Recovery

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46
Publications
1,190
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52
Citations
Introduction

Publications

Publications (46)
Article
Conventional artificial lift systems are limited in their application by depth, borehole trajectory, and the produced media's chemistry. This publication presents a performance analysis of the concentric tubular pumping system, which combines the practical concentric tubular completion with the efficient reciprocating hydraulic piston pump to overc...
Article
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 system...
Article
This publication introduces the downhole dynamometer sensor technology for digitalizing sucker rod pumps’ downhole behavior. The presented field application enables insight into the sensor principles, data evaluation processes and highlights the value chain. Sucker rod pumps (SRP) are used worldwide since the last century. Nevertheless, the system...
Article
The performance of two electric submersible pumps (ESP), when pumping non-Newtonian polymer fluids, was tested at a pump test facility of the university. The results are compared with existing models, and the de-rating coefficients are evaluated for the operating range of the pumps that allow a proper design of ESP field installations. Two differen...
Article
Natural gas is besides from crude oil and coal one of the most important energy resources. However, during the depletion of a reservoir, the occurrence of liquids (e.g. water, condensates) is a well known phenomenon worldwide. Depending on the gas composition and the physical boundary conditions (pressure, temperature), water and/or condensate can...
Article
This paper presents the Pump Test Facility at Montanuniversitaet Leoben and describes its application for testing, training and teaching as part of the cloud-based testing and learning architecture of the university. The cloud-based testing and learning architecture consists of three connected levels: Facility & Hands-on Training Level, Data Center...
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Full-text available
The recovery of geothermal energy has become very attractive in the last decades. Advantages like the small footprint, the waste-free and CO2 neutral energy production and the continuous geothermal resource, will highly promote geothermal energy usage soon. This paper presents a case study of a subsurface located geothermal well. The overall approa...
Article
Sucker rod pumps provide a cost-efficient way to produce hydrocarbons from low-pressure reservoir formations. Their design is dependent on predictive models used to optimize the system before implementation in the field. The greater the accuracy of these models, the better the performance of the pumping system in the field. The scope of this paper...
Article
Tense economic situations push the demand for low-cost oil production, which is especially challenging for production in mature oil fields. Therefore, an increase in the meantime between failure and the limitation of equipment damage is essential. A significant number of wells in mature fields are suffering under sand by-production. The objective o...
Article
The continuing trend towards digitalization in the oil and gas industry is the reaction of the field operators on the market’s demand, to reduce operating costs and increase the lifetime of the equipment. High advanced technology and procedures are essential for reaching these goals. This article presents the Downhole Dynamometer Sensor (DDS) techn...
Conference Paper
The increase in global oil consumption in combination with low to moderate oil prices pushes the demand for cost efficient production in mature oil fields, which often employ any artificial lift system. The reduction of lifting costs by increasing efficiency is essential for extending the mean time between failure (MTBF), the recovery factor of the...
Conference Paper
Low oil prices at the stock market and high water cuts of the produced fluid, force the oil companies to continuously optimize their facilities to meet the actual requirements regarding efficiency. One step in the chain of oil production from the reservoir to the customer is the optimization of artificial lift systems in mature oil fields. Nowadays...
Conference Paper
The sucker rod string is equipped with rod guides that help to stabilize the sucker rod string and to prevent the contact between rods and tubing, which would end up in rod failures and tubing leaks. The scope of this paper is to present a wear study of sucker rod string rod guides performed at a testing facility to predict the wear and service lif...
Conference Paper
Conventional artificial lift systems are limited in their application by depth, borehole trajectory and chemistry of the produced media. This paper presents a concentric tubular pumping system, combined with an efficient hydraulic pump to overcome the limitations of existing artificial lift systems and to assure a cost-effective production. This pu...
Conference Paper
The demand for environmentally friendly and efficient oil and gas production, especially in unconventional reservoirs, is continuously increasing. Conventional hydraulic fracturing jobs use numerous different harmful (U.S. Environmental Protection Agency, 2016) chemicals to stabilize the fracturing fluid and to maintain its proppant caring capacity...
Conference Paper
In this paper, a state-of-the-art wire rope is chosen for investigation regarding its applicability as a sucker rod string. Finite element simulation with Abaqus has been used for a detailed analysis of the rope's performance and possible failures along with its length. The sucker rod string is a key component of sucker rod pumps, transferring the...
Conference Paper
In days where the oil price is low, cost optimization is of vital importance. Especially in mature oil fields, the reduction of lifting costs by increasing the mean time between failure and the overall efficiency helps to stay economical and increase the final recovery factor. Today a significant portion of artificially lifted wells use sucker rod...
Article
Economic situations and governmental restrictions push the demand for efficient oil and gas production, especially in mature fields. The reduction of artificial lifting costs by increasing, on the one hand, the efficiency, on the other hand, the meantime between failure, is essential for extending the economic limit and increasing the recovery fact...
Conference Paper
Conventional artificial lift systems are limited in their application by depth, borehole trajectory, and chemistry of the produced media. This paper presents a concentric tubular pumping system, combined with an efficient hydraulic pump to overcome the limitations of existing artificial lift systems and to assure a cost-effective production. This p...
Conference Paper
Low oil prices push the demand for efficient production, especially in mature fields. The reduction of artificial lifting costs by increasing efficiency is essential for extending the meantime between failure, the economic limit of the reservoir and the increase of the recovery factor. For achieving these goals, the Finite Elements Method (FEM) is...
Conference Paper
Oil contaminated sandy soil is considered to be an economical and environmental problem for the oil industry. The level of contamination is measured in Total Organic Carbon (TOC), which is a sum parameter to measure hydrocarbon compounds. TOC is considered to be the main contributor to the oil contamination in the field. The disposal process of oil...
Article
A large fraction of artificially produced oil from mature, almost depleted reservoirs is lifted with sucker rod pumps. To increase the oil recovery factor under profitable conditions the objective is to reduce the operational costs, consequently decreasing the required number of maintenances and interventions. An essential cause of failures within...
Article
The general idea of the research is based on the assumption that an oil well with an installed Sucker Rod Pump (SRP) emits a characteristic sound spectrum that can be assessed. Every change to the system (wear, beginning failures, etc) should be reflected in a corresponding change of the sound spectrum, creating thus a correlation. The scope of the...

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