Recent new capability
Elemental Analysis and Chemostratigraphy Services
Ellington & Associates, Inc. and Chemostrat Inc. have formed and alliance to provide elemental analysis and chemostratigraphy from a base in Houston, Texas.
The Houston based lab is the first commercial XRF elemental service based in the U.S.
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Production Optimization & Enhanced Oil Recovery
The proposed innovative technology for Oil Production Optimization & Enhanced Oil Recovery (further in the text it’s referred as TPO – Technology for Production Optimization) is primarily applied for optimization of oil production from reservoirs containing oil with Gas to Oil Ratio (GOR > 600 ft3/bbl). It is used when bottomhole pressure is below bubble point pressure and/or in case when a gas cone appears. TPO can be applied to all methods of oil production – fountain, gas lift, and pump production. This technology is based on a very precise mathematical model of the system “reservoir-well” and all of its components.
IIt allows maximization of the current oil production rate and enhancing oil recovery by keeping current bottomhole pressure on the “optimal level”. A principal novelty of the proposed technology is that that the maximum oil flow rate is reached at a certain value of downhole pressure between zero and formation pressure, called “optimal”, or Popt.
This technology can be implemented by using a Downhole Tool (DHT) for adaptive regulation of downhole pressure during production. This tool will automatically keep this pressure closely to the optimal level in various production conditions.
Besides the obvious key benefit of increased oil production rate, the proposed technology brings additional benefits: such as reductions in the current GOR and WOR, mechanical damages and permeability loss,; increases in the ultimate recovery index, life-time of well, formation’s relative permeability; coefficient by oil, productivity index, efficiency of gas-lift and pumps; decelerated depletion of formation pressure; and Improve stability of well performance.
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Simulation of Negative Effects in Near-Bottomhole Zone
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Ellington & Associates, Inc. specializes in building customized mathematical models and computer simulators for different clients, based on their specific requirements.
For the customized Graphic User Interface we can offer a variety of options:
 Data Input – manual input, importing data from an ASCII file(s), Excel spreadsheet, LAS file(s), or other requested formats.
Data Output / Visualization - charts, ASCII tables, Excel spreadsheets, animated cartoons, etc.
A particular customized implementation of a simulator fully belongs to the customer. However, all fundamental mathematical models and underlying knowledge remains an intellectual property of Tseytlin Consulting, Inc.
List of models / simulators for customized development
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EM MWD Telemetry
Simulation of Electro-Magnetic EM MWD Telemetry for Vertical, Inclined, and Horizontal Wells (2D and quazi-3D model)
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Acoustic Navigation
Simulation of Acoustic Wave Propagation and Reflections in Layered Formation (2D and quazi-3D model)
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Hydrodynamics in Borehole-Formation System
 Borehole-Formation-Choke (formation testing in layered formation)
Borehole-Formation-Rod Pump System, including non-homogeneous zones
Optimization of Production Process
Swab/Surge Simulation (Tripping Operations)
Calculation of Pressure Loss in Drilling or Cementing
Simulator of Non-Stationary Two-Phase Filtration in Formation
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Gas Kick Control
New Acoustic Method of Early Detection of Gas Kicks. Prevent gas blowouts during drilling.
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Heat Exchange in Borehole-Formation System
Simulation of Non-Stationary Heat Exchange in Borehole-Formation System During Washing and Cementing
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