Evaluation of high-tech well application efficiency in arctic sub-sea oil field environment

2010 ◽  
Author(s):  
Alexey Andreevich Khrulenko ◽  
A. Zolotukhin
Keyword(s):  
Oil Field ◽  
High Tech ◽  
Application Efficiency ◽  
Field Environment

scholarly journals Effect of CO2/H2S and Applied Stress on Corrosion Behavior of 15Cr Tubing in Oil Field Environment

Metals ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 409
Author(s):  
Xuehui Zhao ◽  
Wei Huang ◽  
Guoping Li ◽  
Yaorong Feng ◽  
Jianxun Zhang
Keyword(s):  
Stainless Steel ◽  
Partial Pressure ◽  
Stress Corrosion ◽  
Applied Stress ◽  
Corrosion Behavior ◽  
Stress Corrosion Cracking ◽  
Corrosion Cracking ◽  
Oil Field ◽  
Uniform Corrosion ◽  
Field Environment

The corrosion behavior of a 15Cr-6Ni-2Mo martensitic stainless steel (15Cr stainless steel) in a CO2/H2S environment was investigated by conducting high-temperature/high-pressure immersion tests combined with scanning electron microscopy and metallographic microscopy. The presence of H2S decreased the corrosion resistance of the 15Cr tubing steel. The critical H2S partial pressure (PH2S) for stress corrosion cracking in the 15Cr tubing steel in the simulated oil field environment with a CO2 partial pressure of 4 MPa and an applied stress of 80% σs was identified. The 15Cr tubing steel mainly suffered uniform corrosion with no pitting and cracking when the PH2S was below 0.5 MPa. When the PH2S increased to 1 MPa and the test temperature was 150 °C, the pitting and cracking sensitivity increased. The stress corrosion cracking at a higher PH2S is attributed to the sulfide-induced brittle fracture.

Integrated EOR Screening in a Marginal Oil Field Environment

2021 ◽  
Author(s):  
Chukwunonso Uche ◽  
Samuel Esieboma ◽  
Jennifer Uche ◽  
Ibrahim Bukar
Keyword(s):  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Laboratory Data ◽  
Oil Field ◽  
Chemical Flooding ◽  
Implementation Challenges ◽  
Recovery Potential ◽  
Field Environment ◽  
Screening Study ◽  
The Impact

Abstract An evaluation of potential EOR processes applicable in the marginal oil field operation of the Niger Delta region is presented. Technical feasibility, process availability, oil recovery potential, and other uncertainties and risks associated with exploitation of enhanced oil recovery technique in a marginal oil field environment are being assessed. Few Enhanced oil recovery processes, namely polymer flooding, chemical flooding and microbial EOR (MEOR), are considered for possible application in this marginal oil field. The objective of the screening study is to evaluate and rank the EOR options and also select the most attractive method that will have to be further chased to a pilot test stage. Emphasis is strictly on a technical assessment of the incremental oil potential of each of the EOR methods and also identification of critical operational and logistical components of the entire process for their implementation in the offshore operating environment. Recoverable volumes associated with EOR may be significant, but key project development and implementation challenges and extra cost elements must be considered in any EOR forecast for an effective EOR process ranking. Some of these concerns (e.g. Polymer/chemical supply, facilities requirements, and the impact of EOR on reservoir performance and wellbore integrity) may be significant enough to eliminate a method from being considered further and at that point the best EOR option that requires minimal cost exposure for achieving the best recoverable shall be considered. Moreso, there is consideration of the quantity and quality of laboratory data that should support the viability of each EOR process being considered. This paper narrates the state of technical readiness for field implementation of each EOR method and identifies remaining work required to progress EOR process in this marginal oil field.

Characterization of iron-reducing Alteromonas putrefaciens strains from oil field fluids

1987 ◽  
Vol 33 (5) ◽  
pp. 366-371 ◽  
Author(s):  
K. M. Semple ◽  
D. W. S. Westlake
Keyword(s):  
Temperature Tolerance ◽  
Oil Field ◽  
Aerobic Bacteria ◽  
Ferric Ions ◽  
Ferrous Ions ◽  
Gram Negative ◽  
Field Environment ◽  
Ubiquitous Presence

Gram-negative, aerobic bacteria capable of facultative growth using ferric ions or thiosulfate or sulfite as electron acceptors were readily isolated from oil field fluids. Morphological and biochemical data are presented which support the classification of these isolates as being strains of Alteromonas putrefaciens (mol% G + C in the range 42–56%). The isolates expressed a range of halotolerance and temperature tolerance as some would grow in the presence of 7.5% NaCl and some grew well at 4 °C. These physiological characteristics, together with the ability to produce ferrous ions and sulfide and their ubiquitous presence in oil field fluids, indicate that these bacteria could contribute to the corrosion of metal in the oil field environment.

Introduction of Near-Bit Geosteering Drilling Technology and Instrument Application in Thin Oil Exploration

2011 ◽  
Vol 228-229 ◽  
pp. 889-893
Author(s):  
Chun Hua Zhang ◽  
Guo Ying Meng ◽  
Guang Hua Liu ◽  
Li Min Sheng ◽  
Yan Fu Huang
Keyword(s):  
Development Trend ◽  
Oil Field ◽  
Reservoir Engineering ◽  
High Tech ◽  
Oil Exploration ◽  
Hydrocarbon Reservoir ◽  
Technology Applications ◽  
Drilling Technology ◽  
Drilling System ◽  
And Control

The near-bit geosteering drilling technology is a new high-tech .It integrats the techniques of drilling, logging and reservoir engineering. The paper introduced the application of this technology in oil exploration. CGDS is a kind of production of this technology applications. The paper introduced the structure ,function, parameters of CGDS production and its application in oil field. CGDS is recognized as the high and new technique in 21 century which ensures you to achieve the best place of a wellbore within a reservoir by providing geological, engineering parameter measurements and while drilling monitoring. With excellent ability of identification of hydrocarbon reservoir and direction guide, CGDS assists you to adjust and control the wellbore trace in real time according to the information of formation features. Through the introduction of this instrument,We can know more about the near-bit geosteering drilling technology The application prospect and development trend of the geosteering drilling system were also discussed.

scholarly journals SELECTION OF THE OPTIMAL RESERVOIR OPENING TECHNOLOGYIN DIFFERENT GEOLOGICAL CONDITIONS: A STUDY OF THE PK1-3 FORMATION AT THE VOSTOCHNO-MESSOYAKHSKOYE OIL FIELD

2018 ◽  
pp. 97-102
Author(s):  
I. V. Kovalenko ◽  
S. K. Sokhoshko ◽  
E. A. Podchuvalova
Keyword(s):  
Optimal Design ◽  
Vertical Section ◽  
Vertical Direction ◽  
Horizontal Wells ◽  
Economic Assessment ◽  
Optimal Number ◽  
Oil Field ◽  
High Tech ◽  
Injection Wells ◽  
Geological Conditions

The article is devoted to choosing of optimal well technology for PK1-3 formation development of the the Vostochno-Messoyakhskoye oil field in the geological uncertainty condition. The formation has some features. On the one hand there are a gas cap and underlying water in the formation, which require usage of horizontal wells, but on the other hand there is a high dissection of the vertical section, which requires technologies to increase the coverage of reserves drainage in vertical direction. The different scenarios of geology were modelled: different length of geological bodies, different values of sandstone and permeability. Considered technologies are horizontal wells, multilateral wells and wells with technology «fishbone».Applying a comprehensive technical and economic assessment to propose optimal design of wells for different geological zones, to determine the optimal corridor of high-tech wells between the rows of injection wells, the optimal number of lateral well branches and the optimal design of the well with technology of «fishbone».

scholarly journals Distribution of Hydrogenase Genes in Desulfovibrio spp. and Their Use in Identification of Species from the Oil Field Environment

1990 ◽  
Vol 56 (12) ◽  
pp. 3748-3754 ◽  
Author(s):  
Gerrit Voordouw ◽  
Vincent Niviere ◽  
F. Grant Ferris ◽  
Phillip M. Fedorak ◽  
Donald W. S. Westlake
Keyword(s):  
Oil Field ◽  
Field Environment ◽  
Identification Of Species

Domestic rotary steerable systems development potential for drilling horizontal wells

2020 ◽  
pp. 74-80
Author(s):  
V. V. Saltykov ◽  
Yu. S. Makovsky ◽  
M. M. Mansurova
Keyword(s):  
Horizontal Wells ◽  
Systems Development ◽  
Oil Field ◽  
High Tech ◽  
Technological Solution ◽  
Deviation Angle ◽  
Vertical Wells ◽  
Special Equipment ◽  
The Past

A complex of special equipment is required for the construction of high-tech wells. The basis of modern time efficient, precise and safe drilling is rotary steerable systems (RSS). For the past five years, rotary steerable systems have been using in Russia as a technical and technological solution to reduce accidents and to improve the quality of well construction with large vertical deviations of the extended drilling radius. These systems allow drilling to be oriented along the entire length of the well. Rotary steerable systems allows drilling both perfectly vertical wells with a deviation angle of not more than 0,2°, and horizontal wells more than 2 000 metres long. Implementation of rotary steerable systems allows building wells with extremely extended reach and conducting wells in 1–2 metres thick reservoirs with precision. In 2016, OktoGeo LLC carried out pilot well program with APS Technology's 172 mm RSS (with power section) at an oil field in the territory of KhantyMansiysk Autonomous Okrug — Ugra. All the rotary steerable system positioning programs were completed based on the results of that work and results of drilling 2 205 metres long directional well.

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