scholarly journals Modeling high-resolution down-hole pressure transducer to achieve semi-distributed measurement in oil an d gas production wells

2019 ◽  
Vol 14 (2) ◽  
pp. 1-9 ◽  
Author(s):  
Leonardo BM Silva ◽  
Edval JP Santos
Keyword(s):  
High Resolution ◽  
Quality Factor ◽  
Computer Model ◽  
Pressure Transducer ◽  
Oil And Gas ◽  
Gas Production ◽  
Geometrical Features ◽  
Intrinsic Loss ◽  
Production Wells ◽  
Distributed Measurement

A full 3D computer model is developed to evaluate the performance impact of intrinsic loss and various geometrical features in high-resolution pressure transducer. The intrinsic loss is modeled as viscosity factors, which allows for a more efficient computer model. In this paper, the developed model is applied to yield an insight in the evolution of high-resolution down-hole pressure transducer, from Hewlett-Packard\texttrademark\, to Quartzdyne\texttrademark. As the quality factor is related to the inverse of the resolution, the transducing element optimization process to achieve the highest quality factor possible is investigated, considering the impact of crystal quality and geometrical features, such as: thickness, diameter and convexity (plano-convex and bi-convex). Temperature-dependent elastic constants are used to improve the model accuracy in modeling temperature effects on the vibrating resonator-type transducer. Boundary load conditions are used to simulate hydrostatic pressure. The simulations to extract the frequency shift are carried out in the range of $14\,psi$ ($96.5\,kPa$) to $20000\,psi$ ($137.89\,MPa$) and $0\,^oC$ to $200\,^oC$ for pressure and temperature, respectively, as such ranges are typically found in oil and gas wells. A discrepancy in the published temperature dependence has been found. A miniaturization path to achieve semi-distributed measurement in oil and gas production wells is presented.

scholarly journals High-resolution pressure transducer design and associated circuitry to build a network-ready smart sensor for distributed measurement in oil and gas production wells

2022 ◽  
Author(s):  
Edval J. P. Santos ◽  
Leonardo B. M. Silva
Keyword(s):  
High Resolution ◽  
Data Acquisition ◽  
Pressure Transducer ◽  
Oil And Gas ◽  
Gas Production ◽  
Smart Sensor ◽  
Oil And Gas Production ◽  
Production Wells ◽  
Distributed Measurement ◽  
The Impact

AbstractMiniaturized single-mode thickness-shear pressure transducer combined with high-temperature SOI, silicon on insulator, integrated circuit technology is proposed as network-ready high-pressure high-resolution smart sensor for distributed data acquisition in oil and gas production wells. The transducer miniaturization is investigated with a full 3D computer model previously developed by the authors to assess the impact of intrinsic losses and various geometrical features on transducer performance. Over the last decades there has been a trend toward size reduction of high-resolution pressure transducer. The implemented model provides insight into the evolution of high-resolution pressure transducers from Hewlett-Packard™  to Quartzdyne™  and beyond. Distributed measurement in production oil wells in extreme harsh environment, such as found in the pre-salt layer, is an unsolved problem. The industry move toward electrified wells offers an opportunity for application of smart sensor technology and power line communications to achieve distributed high-resolution data acquisition.

scholarly journals Application of the finite element-differences method for modeling of filtration processes

2019 ◽  
pp. 114-117
Author(s):  
M. V. Lubkov
Keyword(s):  
Finite Element ◽  
Oil And Gas ◽  
Gas Production ◽  
Production Well ◽  
Phase Permeability ◽  
Filtration Process ◽  
Oil And Gas Production ◽  
Production Wells ◽  
High Level ◽  
Direct Acting

We consider modeling and geophysical interpretation of the obtained results in the oil and gas production problems. For solving these practical problems, we use combined finite element-differences method of resolving piezoconductivity problem with calculation of heterogeneous filtration parameters distribution of oil and gas productive reservoirs and oil-gas penetration conditions in the borders of the reservoirs. At that, we consider the main factors, which influence on the intensity of filtration processes near oil production well and gas production well respectively. These factors are important for effective supporting in practice high level of the oil and gas production. On the base of computer modeling, we have showed that intensity of filtration process near the acting oil and gas production wells mainly depends on oil phase and respectively gas phase permeability, as in close zone of well acting so in remote zone. The viscosity and reservoir porosity parameters in close and remote zones of the well action have little direct effect on filtration process near the acting well. However, these parameters can influence on the filtration process implicitly via direct acting on the respective phase permeability. We also have carried out analysis of the pumping well influence on the filtration process near production well in different practical cases.

Exploitation of oil and gas fields by horizontal wells

2021 ◽  
Author(s):  
Andrey Serebryakov ◽  
Gennadiy Zhuravlev
Keyword(s):  
Oil And Gas ◽  
Horizontal Wells ◽  
Gas Production ◽  
Federal State ◽  
Oil And Gas Production ◽  
Oil And Gas Fields ◽  
Bottom Hole ◽  
Production Wells ◽  
State Educational ◽  
Gas Fields

The textbook describes the design features of offshore horizontal multi-hole production wells, as well as the bottom-hole components of horizontal multi-hole wells. The classification of complications of multi-hole horizontal wells, methods of their prevention and elimination are given. Methods of underground geonavigation of the development of offshore horizontal production wells are proposed. The geological and field bases of operation of horizontal offshore multi-hole oil and gas wells, modes and dynamics of oil, gas and associated water production, methods for calculating dynamic bottom-hole and reservoir pressures are specified. The technologies of operation of offshore horizontal multi-hole wells are presented. The composition and scope of environmental, field and research marine monitoring of the operation of offshore horizontal multi-hole wells and the protection of the marine environment in the production of oil and gas are justified. Meets the requirements of the federal state educational standards of higher education of the latest generation. It is intended for undergraduates of the enlarged group of "Earth Sciences" training areas, as well as for teachers, employees of the fuel and energy complex, industrial geological exploration and oil and gas production enterprises, scientific and design organizations.

scholarly journals Application of high resolution seismic to search for local gas anomalies in the South Kirinskoye oil and gas condensate field

2020 ◽  
Vol 4 (4) ◽  
pp. 384-392
Author(s):  
V.K. Leksin ◽  
Keyword(s):  
High Resolution ◽  
Oil And Gas ◽  
Drilling Fluid ◽  
Gas Production ◽  
Gas Condensate ◽  
Single Type ◽  
Geological Hazards ◽  
The South ◽  
Seismic Section ◽  
Seismic Sections

Searches for local gas anomalies in water areas are necessary to improve the safety of the construction of offshore oil and gas production facilities. The article presents the results of studies of geological hazards at the South Kirinskoye oil and gas condensate field using high resolution seismic from 2010 to 2017. New high-quality seismic sections, reduced to a single type and level, were built, which to make a correlation of reflecting horizons and map geological hazards at intersecting research sites of different years. Based on the results of the interpretation of seismic sections, local anomalies were found in the upper part of the section, indicating the presence of gas. By the structural features of the bedding in the channel on seismic sections, a turbidite flow was detected at a depth of 900 m from the seabed with a width of 1000 m and a length of more than two and a half kilometers. Correlations between the amplitude on the seismic section and the value of methane content (C1) in the drilling fluid on the log were revealed. The result of the work is the first compiled consolidated map of all geological hazards within the South Kirinskoye oil and gas condensate field, discovered as a result of the interpretation of seismic sections.

scholarly journals 2010–2015 North American methane emissions, sectoral contributions, and trends: a high-resolution inversion of GOSAT observations of atmospheric methane

2021 ◽  
Vol 21 (6) ◽  
pp. 4339-4356
Author(s):  
Joannes D. Maasakkers ◽  
Daniel J. Jacob ◽  
Melissa P. Sulprizio ◽  
Tia R. Scarpelli ◽  
Hannah Nesser ◽  
...  
Keyword(s):  
High Resolution ◽  
Analytical Solution ◽  
Oil And Gas ◽  
Oil Production ◽  
Methane Emissions ◽  
Gas Production ◽  
Anthropogenic Emissions ◽  
Atmospheric Methane ◽  
Oil And Gas Production ◽  
Best Estimate

Abstract. We use 2010–2015 Greenhouse Gases Observing Satellite (GOSAT) observations of atmospheric methane columns over North America in a high-resolution inversion of methane emissions, including contributions from different sectors and their trends over the period. The inversion involves an analytical solution to the Bayesian optimization problem for a Gaussian mixture model (GMM) of the emission field with up to 0.5∘×0.625∘ resolution in concentrated source regions. The analytical solution provides a closed-form characterization of the information content from the inversion and facilitates the construction of a large ensemble of solutions exploring the effect of different uncertainties and assumptions in the inverse analysis. Prior estimates for the inversion include a gridded version of the Environmental Protection Agency (EPA) Inventory of US Greenhouse Gas Emissions and Sinks (GHGI) and the WetCHARTs model ensemble for wetlands. Our best estimate for mean 2010–2015 US anthropogenic emissions is 30.6 (range: 29.4–31.3) Tg a−1, slightly higher than the gridded EPA inventory (28.7 (26.4–36.2) Tg a−1). The main discrepancy is for the oil and gas production sectors, where we find higher emissions than the GHGI by 35 % and 22 %, respectively. The most recent version of the EPA GHGI revises downward its estimate of emissions from oil production, and we find that these are lower than our estimate by a factor of 2. Our best estimate of US wetland emissions is 10.2 (5.6–11.1) Tg a−1, on the low end of the prior WetCHARTs inventory uncertainty range (14.2 (3.3–32.4) Tg a−1), which calls for better understanding of these emissions. We find an increasing trend in US anthropogenic emissions over 2010–2015 of 0.4 % a−1, lower than previous GOSAT-based estimates but opposite to the decrease reported by the EPA GHGI. Most of this increase appears driven by unconventional oil and gas production in the eastern US. We also find that oil and gas production emissions in Mexico are higher than in the nationally reported inventory, though there is evidence for a 2010–2015 decrease in emissions from offshore oil production.

scholarly journals Calculation Method for Determining the Gas Flow Rate Needed for Liquid Removal from the Bottom of the Wellbore

2021 ◽  
pp. 368-379
Author(s):  
Miel Hofmann ◽  
◽  
Sudad Al-Obaidi ◽  
I. Kamensky ◽  
Keyword(s):  
Gas Dynamics ◽  
Gas Flow ◽  
Oil And Gas ◽  
Gas Production ◽  
Operating Conditions ◽  
Technological Parameters ◽  
Gas Wells ◽  
Production Wells ◽  
Liquid Removal ◽  
Special Studies

As a result of flooding and accumulations of liquid at the bottomholes, the operating conditions of gas wells become complicated, so that they end up self-squeezing and losing of gas production. A method is proposed for determining the technological parameters of operation of the gas wells with the purpose of removing liquid from the bottom of the wells. Data from the gas dynamics and special studies were used to develop this method, which has been tested on one of the oil and gas condensate fields. It offers the possibility to increase the accuracy of the information provided by the fund and to ensure that the production wells are operated as efficiently as possible with the use of this method. In the case of liquid accumulation in the well that is insignificant, or when water is present in the well, the technique is beneficial in that it allows determining the technological parameters of well operation and ensuring the removal of the liquid from the bottom of the well.

Treatment of produced water originated from oil and gas production wells: a pilot study and cost analysis

2017 ◽  
Vol 25 (7) ◽  
pp. 6398-6406 ◽  
Author(s):  
Mustafa Evren Ersahin ◽  
Hale Ozgun ◽  
Recep Kaya ◽  
Borte Kose Mutlu ◽  
Cumali Kinaci ◽  
...  
Keyword(s):  
Pilot Study ◽  
Cost Analysis ◽  
Oil And Gas ◽  
Produced Water ◽  
Gas Production ◽  
Oil And Gas Production ◽  
Production Wells

Evaluation of Annulus Pressure Buildup During Injection Operations

2020 ◽  
Vol 143 (7) ◽  
Author(s):  
I. M. Mohamed ◽  
Y. Panchal ◽  
N. Mounir ◽  
G. Woolsey ◽  
O. A. Abou-Sayed ◽  
...  
Keyword(s):  
Oil And Gas ◽  
Enhanced Recovery ◽  
Gas Production ◽  
Water Flooding ◽  
Oil And Gas Production ◽  
Pressure Buildup ◽  
Testing Procedures ◽  
Production Wells ◽  
The Cost ◽  
Pressure Changes

Abstract More than 300 million barrels of saltwater is produced everyday from oil and gas production wells. Most of this volume is injected through either saltwater disposal wells or used for water flooding and enhanced recovery purposes. Usually, the regulations require the injection to be conducted through the injector well tubing that is isolated from the well annulus to protect the underground source of drinking water (USDW) by preventing any possible leak through the well casing. Monitoring of the annulus pressure during injection ensures the well integrity. The annulus pressure changes can occur by one of the following mechanisms: thermal expansion of the annulus fluid; ballooning of the injection tubing; communication between the tubing and the annulus; or fluid migration behind the casing. Determining the communication mechanism can be a complex process and a need may arise to run several testing procedures and inspect all the wellbore components. Successful evaluation of the annulus pressure values and trends can directly identify the root cause of the annulus pressure buildup and simultaneously save time and reduce the cost associated with the workover operations. The seven case studies presented in this paper focus on the details pertaining to the annulus pressure buildup under different well conditions and purposes the interpretation technique for each case.

Sign in / Sign up

Export Citation Format

Share Document