• Sonochemical technique has the best effect for crude oil demulsification/dehydration. • The influence factor for sonochemical demulsification/dehydration is investigated. • Recent progress on ultrasonic demulsification equipment is introduced.…
Global crude oil trade is a direct reflection of global economic development and can be mathematically modeled as a network with mass trajectories of crude oil vessels between ports, as well as loading and unloading volume at ports. In this study, we…
As an important strategic resource, petroleum has an important significance in real-time analysis and detection of its components in the petrochemical industry. With the continuous development of petroleum resources, in the production process of…
Abstract: Viscosity reduction is one of the key issues for heavy oil reservoir development and its transportation. Up to now, the mechanisms for ultrasonic viscosity reduction still remain unclear, especially for that of heavy crude oil which needs…
With the development of domestic petroleum exploitation, the water cut of produced liquid is up to 70%-90%, and the energy consumption of gathering and transportation in oilfields is greatly increased, which makes low-temperature transportation…
Estimation of reserves and potential resources of oil and gas, as well as the possibility of energy resources development in difficult arctic conditions. The spatial organization of rational structure of sea transportation of these resources in the…
In view of the situation that heavy oil well production fluid needs to be gathered and transferred by heating or with heat water to ensure the normal operation, a kind of cold transportation viscosity reducer was developed through the compounding of…
In this paper, a mixed integer nonlinear programming model is proposed to concurrently design two segments (i.e., upstream and midstream) of crude1 oil supply chain. The network includes all entities and their connections from oil wells to product…
The development of offshore heavy oil field need to reduce investment, energy consumption for oil and gas processing and transportation, we should improve the process, in order to simplify the process by using advanced technology, reduce processing…
Crude oil port depots are key hubs in oil trade and thus play a vital role in the crude oil supply chain. Based on the characteristics of the scheduling system in an oil port depot, the development of a precise schedule is essential for handling…
Viscosity of oil in Qingdong-5 zone is high. It is difficult for oil-gas gathering and transportation, because transmission distance is long and there is no nearby facilities can rely on. In this paper, Qingdong-5 zone is taken as an example to study…
The increasing demand for oil and the fast decline of crude oil production from mature fields encourages the development of new enhanced oil recovery (EOR) technologies. In this work, trimethyl chitosan (TMC) and trimethyl chitosan hydrophobized with…
Flow assurance has been a major problem in the development of a heavy oil field. It is not common that this issue has a multiplier effect from reservoir up to processing facilities, reducing productivity and in turn, increasing financial burden. Many…
Considering the factors such as ambient temperature, solar radiation, heating steam pressure and physical properties of oil products, a theoretical model for heating process of large floating roof tank coil is established. The numerical solution…
As an important strategic resource, petroleum has an important significance in real-time analysis and detection of its components in the petrochemical industry. With the continuous development of petroleum resources, in the production process of…
Crude oil port depots are key hubs in oil trade and thus play a vital role in the crude oil supply chain. Based on the characteristics of the scheduling system in an oil port depot, the development of a precise schedule is essential for handling…
Miscible displacement of oil by CO2 injection is one of the most successful enhanced oil recovery (EOR) processes and has been widely implemented in fields around the world since the early 1980s. The advantage of CO2 compared to the other gases is…
CO2 injection has been used in the oil industry as an effective technique for enhanced recovery of light to medium oils. However, its utilization for heavy oil recovery has not gained enough attention because of the immiscible nature of heavy oil and…
D oil field located at the west of Bohai Bay of China is characterized as a complex fluvial reservoir with multiple oil-water systems. It is classified as a marginal field because of the thin sand channels (average 12m), low oil columns(less than…
Fire flooding process has been applied to the thick and deep heavy oil reservoirs G3618 and G3 in Liaohe oil field in China. Currently, there are two main operating issues: the serious combustion front gravity override, and the low areal sweep…
Cyclic solvent injection (CSI)a non-thermal process option for development of post-CHOPS (cold heavy oil production with sand) heavy oil reservoirsworks by dissolving a gaseous solvent, mainly Methane (CH4) or Carbon Dioxide (CO2), and sometimes…
Primary production using horizontal wells has been successfully applied in extra-heavy oil reservoirs, heavy oil belt, Orinoco, Venezuela. During drilling period, formation damage due to drilling fluid invasion lowers the effective permeability…
The development of giant fields of extra-heavy crude oil (XHO), through the massive application of thermal EOR processes, involves investments of several millions of dollars. It is a technical challenge to evaluate, by means of numerical simulation,…
The initial development of wedge shaped oil reservoirs that are subject to both aquifer influx and gas cap expansion requires optimal well placement relative to the future movements of gas-oil and water-oil contacts. In offshore developments with…
Many heavy oil fields have recently seen exponentially higher volumes of data being made available from omnipresent connectivity. Existing data platforms have traditionally focused on solving the problem of data storage and access. The more complex…
After conventional oil recovery operations, abundant residual oil is still trapped in pore space of complex capillary network in the reservoir. As a promising method of tertiary oil recovery, microbial enhanced oil recovery (MEOR) involves the use of…
In the processing of field measurements, the observations are adjusted using the least squares principle which gives unbiased estimate of the parameter sought together with their accuracies. In this paper, the use of the Least Squares model in the…
The geophysical well logging analysis is a major task of petroleum research and development, where petroleum oil (gas), transition petroleum layers, water layers, and dry-layer segments are precisely distinguished from each other. The resistivity of…
The Tahe Ordovician carbonate reservoir is special and unique, with its fracture and cavity serving as both pathway and crude oil storage space. Additionally, its extra-heavy crude oil is highly viscous and dense. The combination of all these…
At present, it is unusual to find underground gas storage reconstruction based on an oil reservoir, especially, at its early development stage, and the theoretical system of storage capacity calculation has not yet been formed. From the material…
Steam injection in heavy oil recovery often reaches the economical limit. Factors such as steam-oil ratio, generation costs, formation injectivity, reservoir pressure and heat losses are critical for the viability of these projects. This works…
The thermal action on the layer forms the basis of process SAGD method that leads to a change in viscosity of the heavy oil, an increase of pressure in the vicinity of steam drainage area, and also in overlying and underlying rocks. All of this…
This paper describes a new approach to online monitoring salt content in crude oil. An extensive experimental study was conducted in the laboratory on different crude oil types, to evaluate accuracy and repeatability of the new method in comparison…
This paper presents the first study on CO2-EOR potential of the LH11-1 oilfield offshore Guangdong Province, China. LH11-1 field is a reef heavy oilfield (1623 API), and overall development efficiency is not ideal. In this study, the CO2 flooding…
Because of CO2 dissolution, crude oil may expand to various degrees. It is positive for oilfield development, such as enhancing oil saturation and formation pressure energy. According to the study object, previous relevant works can be divided into…
The ADGAS plant facilities include three LNG trains (Trains-1 & 2 commissioned in 1977 and Train-3 commissioned in 1994), Offshore Associated Gas (OAG) and Integrated Gas Development (IGD) facilities along with utilities and other associated…
Methods for easily following the main changes in the composition, stability, and acidity of bio-oil as a result of hydrotreatment are presented in this paper. The methods provide the basis for the development of an analytical protocol, which can be…
The Draugen field was the first offshore platform installed in the Mid-Norway offshore acreage. In addition to the challenge of the harsh environment, several innovative designs were implemented in the development. Due to the unique reservoir fluid…
The Sulige Gas Field in the Ordos Basin operated by the PetroChina Changqing Oilfield Company is one of the typical tight sand gas fields with low single-well productivity, difficult-to-control surface engineering investment, high pressure drop rate…
With the continuously progressing of building the intelligent oilfield and the rapid development of the Internet of Things and big data technology, the emerging technologies such as the information acquisition, distributed computing and data mining…
In the process of extraction, collection, transportation and primary processing of hydrocarbons, the lands of the fields are often damaged. For the further operation of the oil field, it is necessary to carry out not only reclamation of disturbed…
One of the important indicators of shale gas reservoir excavation is capacity evaluation, which directly affects whether large-scale shale gas reservoirs can be excavated. Capacity evaluation is the basis of system analysis and dynamic prediction.…
Tight formations normally have production problems mainly due to very low matrix permeability and various forms of formation damage that occur during drilling completion and production operation. In naturally fractured tight gas reservoirs, gas is…
Grachevskoe oil field, Republic of Bashkortostan, has a unique development history with the application of an EOR technique which involves injecting a mixture of natural gas and associated petroleum gas into the reservoir. The injection fluid is…
Hydraulic fracturing produces artificial fractures and creates oil and gas seepage channels. It has now grown into an indispensable technology for oil and gas exploration and development, which leads to the evaluation of hydraulic fracturing effects,…
During recent years the active development of Achimov deposits in the Urengoy oil and gas-condensate field has begun. The development of these deposits will not only reduce the gas production decline rate from traditional Cenomanian and Valanginian…
Studies on how to reduce the methanol injection amount in a natural gas processing plant, how to improve the methanol utilization rate, and how to cut down the energy consumption of a methanol recovery unit, are of great realistic value for the Yulin…
This research analyzes the characteristics of the production and processing of oil, condensates and natural gas in the Republic of Croatia starting from 2000, until the end of 2014. Amounts of balance sheet (exploitable) reserves of oil and…
Natural gas hydrate (NGH) is a highly efficient and clean energy, with huge reserves and widespread distribution in permafrost and marine areas. Researches all over the world are committed to developing an effective exploring technology for NGH…
A CO concentration analysis system for natural gas was developed based on the diffuse absorption band of CO gas molecules at 1.56m, combined with wavelength modulation and harmonic detection techniques. A long light path gas absorption cell was used…