Journal of
Petroleum and Gas Engineering

  • Abbreviation: J. Petroleum Gas Eng.
  • Language: English
  • ISSN: 2141-2677
  • DOI: 10.5897/JPGE
  • Start Year: 2010

JPGE Articles

December 2017

Downhole flow controllers in mitigating challenges of long reach horizontal wells: A practical outlook with case studies

Production and injection in long reach horizontal wells pose several challenges in production optimization, flow assurance and reservoir management. Horizontal wells are known to be superior to vertical wells in terms of productivity, however, they are also susceptible to early water and/or gas cut production due to the heel-toe effect and/or permeability contrasts. Uniform distribution of water injection into all zones...

Author(s): Omar Jamal Chammout, Bisweswar Ghosh and Mohamad Yousef Alklih

December 2017

Analysis and field applications of water saturation models in shaly reservoirs

Shaly sandstone reservoirs have complex pore systems with ultra-low to low interparticle permeability and low to moderate porosity. This has led to development of several models to calculate water saturation in shaly sandstone reservoirs using different approaches, assumptions and certain range of conditions for application. This study has used actual well logging data from two different fields of South Texas and North...

Author(s): Shedid A. Shedid and Mohamed A. Saad

November 2017

Dynamic simulation of the unloading process of gas-lift hard lifts in the Kelameili Water-Flooded Gas Well

Owing to its strong adaptability and flexibility, gas lift is widely used in deliquification or production restoration for water-flooded gas well. This paper briefly introduced the advantages and adaptability of the gas-lift hard lift technology (gas lift without gas lift valve). The mathematical model based on the mass and momentum conservation was established to describe the unloading process of gas-lift hard lift and...

Author(s): Zhong Haiquan, Zhang Feng, Feng Dianfang, Wang Xiaolei, Wang Zhengming, Hong Jiangling and Chen Wei

October 2017

A technical review of radial jet drilling

Radial jet drilling (RJD) is an unconventional drilling technique that uses the jet energy of high velocity fluids to drill laterals with different geometries in both conventional and unconventional reservoirs. Many case studies available worldwide have proven RJD as a viable alternative to traditional stimulation techniques, especially in marginal fields. RJD has a lot of application in the oil and gas industry. It is...

Author(s): Ahmed H. Kamel

September 2017

Predicating Water-flooding Performance into Stratified Reservoirs Using a data driven proxy model

Fundamentally, all mathematical models employed in analysis of water-flooding performance implied assumptions to exclude one or more forces to cope with the reservoir heterogeneity. In the beginning of the survey, a series of sensitivity investigations were undertaken to examine the parameters that affect the water-flooding performance in stratified reservoirs. The factors were designed to measure the impact of each...

Author(s): Ahmed I. Omar, Zhangxing Chen and Abdulhadi E. Khalifa

September 2017

A sensitivity study of relevant parameters on sand production in unconsolidated sandstone reservoirs

Sand production is a prevalent problem during oil and gas production from weakly consolidated or unconsolidated formations. It can erode downhole equipment and surface facilities, cause pipeline blockage, leakage and damage casing and generate additional need for sand disposal. Decision for appropriate sand control strategy requires engineering analysis of the key parameters affecting sand production to evaluate timing...

Author(s): Mohamad Tabaeh Hayavi and Mahmood Abedifar

August 2017

Optimization of Gas Recovery using Co-production technique in Water Drive Reservoir

Recovery factor for gas reservoirs are highly dependent on factors such as initial reservoir pressure, abandonment pressure and the type of reservoir drive mechanism. Producing gas reservoirs with active water drive mechanism possess a lot of challenge to the field operator since optimum production of gas is dependent on reduced pressure. Material balance model was used to derive basic reservoir and production...

Author(s): Maselugbo, A. O., Onolemhemhen, R. U., Denloye, A. O., Salufu, S. O. and Isehunwa, S. O.

July 2017

Application of production logging tools in estimating the permeability of fractured carbonated reservoirs: A comparative study

Fractured carbonated reservoir is one type of unconventional reservoirs which has low permeability rather than conventional reservoirs in terms of complex depositional and diagenetic environment. In most of the fractured carbonated reservoirs, fluid flow characteristics such as permeability and porosity are generally difficult to estimate and the most porous intervals are not always the best reservoirs as the intervals...

Author(s): Afshin Davarpanah, Behnam Mirshekari, Taraneh Jafari Behbahani and Mahmoud Hemati

June 2017

Prediction of sand production in gas and gas condensate wells

Sand production is a major concern during petroleum exploitation from unconsolidated sandstone reservoirs. For efficient management, sanding predictive tools are necessary. While several models have been developed for sanding in oil reservoirs, gas and gas condensate reservoirs have received little attention because of the widespread belief that such reservoirs are not prone to sanding. This study utilized erosional...

Author(s): S. O. Isehunwa, T. F. Ogunkunle, S. M. Onwuegbu and O. O. Akinsete

May 2017

Utilization of shredded waste car tyres as a fracture seal material (FSM) in oil and gas drilling operations

The drilling operation cost represents 25% of the total oilfield exploitation cost. Drilling fluids represent 15 to 18% of the total cost of well petroleum drilling operations. The main drilling fluids problem is the loss into fractures and vugs. Mitigation of severe lost circulation is a main challenge while drilling in fractured formations where conventional lost circulation materials (LCM) will not cure these losses....

Author(s): Musaed N. J. AlAwad and Fattah, K. A.,

March 2017

Methodology and case study of commercially optimum prover sizing for an ultrasonic fiscal metering system of crude oil

This paper presents a procedure in format of a flowchart for prover sizing based on API-MPMS Standard which can be considered as a pattern for prover sizing in field prover design and fabrication. The method was analyzed and verified for the prover of the biggest crude oil fiscal metering system in Iran, that is, bidirectional field prover of Genaveh 10 Million BBL Crude Oil Storage Tanks Fiscal Metering System Project...

Author(s): Majid Razaghi

January 2017

Petrographic and diagenetic studies of thick transition zone of a middle-east carbonate reservoir

This work aims to characterize petrographically some of the transition zone plug samples in order to understand the impact of diagenetic processes on the transition zone rock quality. Three carbonate samples were collected from the same well which cuts through a thick transition zone of a heterogeneous cyclic carbonate reservoir of Abu Dhabi with respect to depth. The petrographic analysis was conducted by the thin...

Author(s): Aala Awad Idriss Mohamed, Hadi Belhaj, Jorge Salgado Gomes and Achinta Bera

June 2016

Research on injection profile of polymer flooding reservoir in Bohai Oilfield

During polymer flooding, the behaviors of water injection profile reflect the flooding efficiency and its performance in medium and low permeable layers represents the sweep efficiency of the reservoir. In this work, the polymer flooding wells in Bohai Oilfield is analyzed and the observations on the performance are, with more polymer injected, the injection profile is characterized by: In most of the wells, vertically,...

Author(s): Yang DongDong, Wu ChunXin, Zhang YanHui, Wang Gang and Liu YingXian

August 2015

Enhancing the stability of local vegetable oils (esters) for high geothermal drilling applications

Conventional drilling fluids such as diesel and mineral oil have posed some environmental and health challenges in their drilling applications  but the introduction of synthetic-base fluids over the past two decades has considerably reduced such challenges. In some cases, a bottom hole temperature above 300°F (150°C) can cause significant instability in the rheological properties of these drilling fluids....

Author(s): Richard Amorin, Adewale Dosunmu and Richard K. Amankwah

July 2015

Integration of structural uncertainty and experimental design for uncertainty quantification

During the history matching, attentions are shifted from the structural map and focus are on the dynamic properties such as relative permeability data, saturation end points and Pressure-Volume-Temperature (PVT) information. However, structural maps can inherit huge uncertainty which can affect the dynamic behaviour of the reservoir. The objective of this study is the presentation of an approach for quantifying...

Author(s): Arinkoola, A. Olatunde, Aladeitan, M. Yetunde and Ogbe, O. David,

June 2015

Creep deformation of fracture surfaces analysis in a hydraulically fractured reservoir using the finite element method

In this study, we develop a Galerkin-type finite element (FE) solution to assess the creep deformation of fracture surfaces. These surfaces are treated as comparatively compliant rocks which are separated by a comparatively stiff proppant pack. Viscoelastic properties of fracture surfaces are assessed by the temperature and deformation dependent modulus. The key challenge is to appropriately develop the creep and the...

Author(s): Ken Glover, Gholamreza Naser and Hadi Mohammadi

May 2015

Oil-oil correlation of the South Sumatra Basin reservoirs

The research sets about describing the different oil types in the South Sumatra Basin and relating the hydrocarbon to source rocks. Four different groups of oil have been identified; the character of the oils suggests both lacustrine and terrestrial input to the source rocks. Type 1 oils have marine/lacustrine influenced (low pristane/phytane), Type 2 are terrestrially derived (high pristane/phytane ratio), Type 3 are...

Author(s): S. A. Kasim and J. Armstrong

April 2015

Hands-on model of sucker rod pumping facility for oil well production

Often students of the petroleum engineering programs at the early stage of their studies in institutions of developing countries do not have easy access to the oil and gas industry facilities. Multinational petroleum companies come in with the state-of-the-arts technology, with expatriates who work and leave without technology transfer. Laboratory equipment is very costly to developing institutions of petroleum studies...

Author(s): Kennedy Folepai FOZAO, Michel LISSOUCK, Frederic LONTSI, Abbas NGASA and Njoke MBANDA

March 2015

Prospect of harnessing associated gas through natural gas hydrate (NGH) technology in Nigeria

Natural gas hydrate (NGH) technology is a feasible alternative to capture associated-gas, which are usually difficult to harness in the stranded and/or marginal oil field. The importance of gas hydrates is related to its potential to be able to contain about 160 Sm3 of gas and 0.85 m3 of water in 1 m3 of gas hydrate at standard temperature and pressure. This feature of natural gas hydrate can be brought to bear in...

Author(s): Onwukwe S. I. and Duru U. I.

February 2015

Evaluating the application of foam injection as an enhanced oil recovery in unconsolidated sand

In the Niger Delta, low oil recovery rates less than 30% results mainly due to oil production problems such as water coning, wax deposition and high gas/oil ratios. Meanwhile, the remaining oil becomes a good candidate for EOR methods such as CO2 injection, polymer and foam injection, in-situ combustion and steam injection. But as it stands, the practice of these known methods of enhanced oil recovery is scarce in the...

Author(s): FALODE Olugbenga Adebanjo and OJUMOOLA Olusegun 

January 2015

Sensitivity study of low salinity water injection in Zichebashskoe Oilfield

Presently, low salinity waterflooding is considered one of the most promising and cost-effective EOR methods. Although the recovery mechanisms are still uncertain, decrease of residual oil saturation and alternation of rock wettability are considered to be main mechanisms of the incremental oil recovery. In addition, laboratory and mathematical studies conducted over recent years suggested that mobility control is also...

Author(s): Abbas Zeinijahromi, Vadim Ahmetgareev, Ravil Ibatullin and Pavel Bedrikovetsky

January 2015

Factors that affect pressure distribution of horizontal wells in a layered reservoir with simultaneous gas cap and bottom water drive

Understanding the behaviour of pressure distribution completed in two layered reservoir subject to both active gas cap and bottom water drive mechanisms is very important in reservoir management. To determine the factors that affect pressure distribution of horizontal wells in a layered reservoir subjected simultaneously with a gas-cap at the top and bottom water drives, well completion was carried out in a particular...

Author(s): Oloro j and Adewole E.S

November 2014

Investigation of hydraulic fracture optimization in on Infill well in low permeability reservoirs

Well infilling has become an effective approach to enhance oil recovery (EOR) for many years. Closely spaced wells and water injections can help maintain reservoir pressure and enlarge producing pressure drop, which are beneficial to the low permeability reservoir development. After more than 20 years of water injection in the Ansai low permeability oil reservoir (Changqing Oil Field, China), water cut of wells now...

Author(s): Wang Wendong, Su Yuliang, Zhou Shiyu, Yuan Bin and Shang Yangyang

November 2014

A practical approach to the evaluation of subcritical multiphase flow through down-hole safety valves (storm chokes)

A practical approach to the evaluation of subcritical multiphase flow through down-hole safety valves (storm chokes) is presented. This method which is independent of the continuous phase is based on the composition of the flowing mixture and the operating temperature and pressure. In the event of single phase flow, the method can also be applied. With this method, we can easily size subsurface safety valves (SSSV)...

Author(s): A. Joseph and J. A. Ajienka

November 2014

Transfer matrix technique for determining the resonance conditions in retrieving stuck drill pipes with a top vibratory suspended drive

A stuck drill pipe has been recognized as one of the most costly and non-productive challenges in drilling operations. Fishing jars are routinely used to un-lock or loosen the stuck (jammed) pipes which in many cases are expensive and the time taken to complete the job can reach several days of continuous jarring. The use of surface mounted vibratory systems has offered an alternative cost effective means to free the...

Author(s): K. K. Botros, J. O’Blenes and E. Yajure

October 2014

Development of simple correlations to evaluate the petroleum potential of Quseir - Safaga oil shale, Egypt

The specific gravity of oil shale can be used as a practical tool for estimating total organic carbon (TOC) and the oil yield of shales from a given source. Sixteen random oil shale samples, mostly from the Upper Cretaceous Duwi Formation in Quseir - Safaga district in the Eastern Desert of Egypt, were collected. Experiments were conducted to determine the density, TOC and oil yield of such samples. The study has...

Author(s): Mina R. Shaker, Shouhdi E. Shalaby and Tarek I. Elkewidy

September 2014

Removal of polyaromatic hydrocarbons from waste water by electrocoagulation

In the present study, two important groups of factors were studied; the first one corresponds to the Electrocoagulation (EC) process parameters such as current density, pH, electrolysis time and electrolyte concentration that were investigated in terms of their effects on the removal efficiencies of polyaromatic hydrocarbons,  specially β-naphthols.  The second group of factors analyses the effect of...

Author(s): Ehssan Mohamed Reda Nassef

June 2014

Effect of water influx on the inventory of underground gas storage developed in a depleted oil reservoir

Effect of water encroachment into an underground gas storage reservoir on its storage capacity (verification of inventory) is presented. Inventory verification is to determine the amount of natural gas to be injected into a particular underground reservoir. Reservoir and production history of a depleted oil reservoir, Z-16T, located in the Niger Delta region were obtained for the analyses. A volumetric equation was used...

Author(s): Anyadiegwu C.I.C. and Anyanwu E.E.

June 2014

Evaluation of rheological properties of Detarium micocarpum, Brachystegea eurycoma using Herschel-Buckley model and their commercial availability

Drilling fluids were formulated from biomaterials such as Brachystegea eurycoma and Detarium micocarpum. The laboratory measurements were carried out, and their rheological properties then evaluated. The drilling properties such as yield point, apparent viscosity, and low shear rate yield point were determined from the experimental data. The field polypac additive that is currently in use was formulated and used as...

Author(s): Igwilo Kevin and Zakka Bala

March 2014

Pressure transient analysis of multiple leakages in a natural gas pipeline

Pipelines are principal devices for natural gas transportation which are amenable to operational challenges such as leakages. Several methods for predicting leakages in natural gas pipeline have been developed. Some of these techniques detect leakages after several hours while some are prone to false alarms or inaccurate predictions. This study developed a pressure transient analysis model for predicting gas pipeline...

Author(s): Sunday O. Isehunwa, Sunday B. Ipinsokan and Oluwatoyin O. Akinsete

March 2014

A study of the effects of waste lubricating oil on the physical/ chemical properties of soil and the possible remedies

Waste oil management in Nigeria is not well supervised, hence the indiscriminate disposition into the soil drains and sometimes open water. This has attendant implications on soil and water quality. Need has arisen to evaluate the consequence of such mismanagement on the environment. This study was designed to evaluate the effects of waste oil on the physical and chemical properties of soil in Lagos, and the possible...

Author(s): Udonne J. D. and Onwuma H. O

December 2013

A high temperature N2-foam assisted cyclic steam injection in Fuyv reservoir

Steam stimulation has already been proved as an important thermal recovery technology. In Daqing, the development and management of high-heterogeneous heavy oil reservoirs plays an important role in stabilizing the oil output. To combine the good features of steam injection and cyclic injection, a cyclic steam flooding has been conducted in the Fuyv reservoir, Daqing. This paper aims to present a detailed process of the...

Author(s): Xin Zhao, Panqing Gao and Zhiyong Shao

December 2013

Effect of pH on interfacial tension and crude oil–water emulsion resolution in the Niger Delta

It is important to know the produced volumes and to effectively separate the oil and water phases in oil well effluents to the surface during production. While it is known that the effectiveness of separating the phases and hence the accuracy of measurements are often affected by the nature of the fluids, the specific contributions of the physical parameters of the fluids are little known. In this study, the effect of...

Author(s): Olanisebe, E. B., and Isehunwa, S. O.

November 2013

Prediction of drilling pipe sticking by active learning method (ALM)

Stuck piping is a common problem with tremendous impact on drilling efficiency and costs in oil industry. Generally, the stuck pipe troubles are solved after their occurrences by using some standard techniques; here we attempt to predict the causes of occurrence of such problems to eschew risks and excessive drilling costs. If these risks are identified in advance, better solutions can be provided to reduce the...

Author(s): Morteza Elahi Naraghi, Peyman Ezzatyar, Saeid Jamshidi

November 2013

The perspective of Nigeria’s projected demand for petroleum products

Nigeria is Africa's energy giant, and the most prolific oil-producing country in the continent. Export of petroleum is the mainstay of the Nigerian economy and the major source of revenue for the country. The petroleum and natural gas sector accounted for about 19.39% of the nations GDP in 2009. The sector also contributed over 95 and 70% of export earnings and total government revenue, respectively. Nevertheless,...

Author(s): A. H. Isa, S. Hamisu, H. S. Lamin, M. Z. Ya’u and J. S. Olayande

June 2013

Analysis of oil flow in fractured oil reservoir using carbondioxide (CO2) foam injection

  Most carbonate reservoirs are heterogeneous in terms of pore distribution and the matrix is extremely low permeable, hindering the flow of oil, while highly permeable fractures are the primary flow conduit. This study presents the hybrid discrete fracture network (DFN) approach to represent fracture network, more realistically, which is a continuum approach equipped with local grid refinement (LGR). The LGR...

Author(s): Minhee Choi, Junwoo Seo, Hyemin Park and Wonmo Sung

  • Article Number: 4501B368999

June 2013

Experimental study of new improved oil recovery from heavy and semi-heavy oil reservoirs by implementing immiscible heated surfactant alternating gas injection

  After thermal processes, steam injection is the most common enhanced oil recovery (EOR) methods in heavy oil reservoirs. It is common in heavy and semi heavy oil reservoirs to inject gas in conjugate with surfactant solutions to enhance the effect of gas on reservoir fluid which is called surfactant alternating gas (SAG) injection. The interest in immiscible and miscible SAG process has been grown...

Author(s): Mehdi Mohammad Salehi, Eghbal Sahraei and Seyyed Alireza Tabatabaei Nejad

  • Article Number: CBF2F989013

June 2013

Experimental study of surfactant alternating gas injection versus water alternating gas and water flooding enhanced oil recovery methods

  Nitrogen is used in both the miscible and immiscible gas injection processes in oil reservoirs. In heterogeneous formations, gas tends to early breakthrough due to overriding and fingering. Surfactant alternating gas (SAG) injection is one of the methods commonly used to solve this problem. The foam which is composed in contact area of nitrogen and surfactant, increases injected gas...

Author(s): Mehdi Mohammad Salehi, Mohammad Amin Safarzadeh, Eghbal Sahraei and Seyyed Alireza Tabatabaei Nejad

  • Article Number: 71D07589029

May 2013

Improving well productivity in an Egyptian oil field using radial drilling technique

  Radial drilling (RD) technique utilizes hydraulic energy to create several lateral holes in different directions and levels with several lengths. These lateral holes are made by milling the casing with small bit then extending these holes laterally using high pressure hydraulic jetting. This work presents full descriptions and analysis for RD applications in one of the Egyptian oil field. Moreover, it...

Author(s): Adel M. Salem Ragab

  • Article Number: 6AA0F518921

May 2013

Development of a new surfactant-polymer system and its implementation in Dagang oilfield

  In this paper, a new surfactant–polymer enhanced oil recovery (EOR) system is investigated for the feasibility of injection in Dagang. The newSP flooding system has been designed and developed for Dagang oilfield with Dagang petroleum sulfonate (SLPS) as the primary ingredient. The dynamic behavior of the system and the interactions of the system components have been investigated through...

Author(s): Hongyan Wang and Brian Miller 

  • Article Number: 690EE9F8945

May 2013

Flue gas enhanced oil recovery (EOR) as a high efficient development technology for offshore heavy oil in China

  China Offshore oilfield is rich in heavy oil, M oilfield in Bohai Bay is the most thick heavy oil field in offshore by far with the formation oil viscosity as high as 450 ~ 950 mPa.s.  Using conventional oil field development (depletion and water flooding), the heavy oil field exposed its limits, such as low productivity of single well, low production rate and low predicted recovery. As is well known,...

Author(s): Dong Liu and Wenlin Li

  • Article Number: 70FDB9E8978

April 2013

Comparison between spreadsheet and specialized programs in calculating the effect of scale deposition on the well flow performance

  Formation damage is an undesirable operational and economic problem that causes a reduction in the productivity, skin damage, and decrease in well performance. Formation damage occurs during the various phases of oil and gas recovery from subsurface reservoirs including production, drilling, hydraulic fracturing, and work over operations. Formation damage assessment, control, and remediation are among the...

Author(s): Khulud .M. Rahuma, F. Sondi, M. Milad and M. AbuGheit

  • Article Number: 052DDB98864

April 2013

Modeling of thermal cracking process in a crude oil refinery

  In a thermal cracking process, the molecular bonds of the liquid are broken to the lighter ones. Recently due to the availability of more heavy oils, the process interest was to yield light and middle distillate products. In this research, thermal cracking of vacuum residue in a commercial soaker-visbreaking plant is studied. The product of the process is characterized to the light gas (C1, C2), liquefied...

Author(s): Sepehr Sadighi and S. Reza. Seif Mohaddecy

  • Article Number: 466BD168875

April 2013

Variation of petrophysical properties due to carbon dioxide (CO2) storage in carbonate reservoirs

  Depleted hydrocarbon reservoirs, deep saline reservoirs, and un-mineable coal seams are considered the best geological sequestration candidates for carbon dioxide (CO2) geologic storage formations. CO2 sequestration in carbonate reservoirs provides a good way to reduce CO2 release to the atmosphere. This work investigates the effect of the temperature, pressure, and brine salinity on the...

Author(s): Adel M. Salem and Shedid A. Shedid

  • Article Number: 112DC8C8886

March 2013

Sonic log analysis in oil wells through Box and Jenkins methodology

The sonic profile is used, mainly in exploration wells, which receive greater investment in data acquisition because these wells serve as a reference for analyzing the petroleum potential of the area. The sonic profile was introduced in the 50s, with the goal of providing support for seismic exploration, and subsequently became extensively used for studies on total porosity of the rocks traversed by the well. This paper...

Author(s): Suzana Leitão Russo, Jéssica Santos de Jesus, Daiane Costa Guimarães, João Antonio Belmino dos Santos and Maria Emilia Camargo

March 2013

Microbial enhanced oil recovery using potent biosurfactant produced by Pseudomonas sp. from Arabian Sea, Mumbai

Increase in oil pollution due to accidental leakages during various ship operations and human activities make these hydrocarbons the most common global environmental pollutants. Current understanding in degradation of these harmful oils involves the isolation of biosurfactants from various isolated microbial strains from contaminated sites of Marine Sea. Biosurfactants are the surface active molecules synthesized by...

Author(s): Seema Dhail

March 2013

A new simulator for surfactant flooding

Surfactant as a successful enhanced oil recovery (EOR) agent has been widely used in many mature reservoirs. This research focuses on the description of surfactant solution at low permeability condition. A new three-dimensional, two-phase, three-component surfactant simulator is presented. The simulator is based on the non-Darcy flow characteristics of surfactant flooding in the low permeability formations. The change...

Author(s): Yongwei Li

February 2013

Real-time expert seismology by non-linear oil reserves expert system

  A non-linear 3-D elastic waves real - time expert system is proposed for the exploration of land and marine oil reserves, according to the new theory of "Real-Time Expert Seismology". This Generic Technology will work under Real Time Logic for searching the land and marine petroleum developed on the continental crust and on deeper water ranging from 300 to 2000 m, or 3000 m, or even more. Hence, the...

Author(s): E. G. Ladopoulos

  • Article Number: 550BF3F4750

February 2013

Development of enhanced oil recovery in Daqing

  Chemical flooding is playing an important role in stabilizing oil output in Daqing, which is the largest field in China and started its chemical floods since the last 90's. In Daqing Oilfield, the chemical flooding annual output has exceeded 17 million tons; water cut has been dropped down significantly. The success of chemical enhanced oil recovery (EOR) has encouraged the increasing of chemical...

Author(s): Liu Renqing

  • Article Number: E33B9484775

January 2013

Investigation into the rheological and filtration properties of drilling mud formulated with clays from Northern Nigeria

  Rheological properties of drilling mud formulated from ten samples of Nigerian clay and treated with sodium carbonate (Na2CO3) were determined. Four different formulations were made: A (22.5 g / 350 ml of mud + 0% Na2CO3), B (22.5 g / 350 ml of mud + 10% Na2CO3), C (25 g / 350 ml of mud + 10% Na2CO3) and D (28 g / 350 ml of mud + 10% Na2CO3). None of the samples tested in their natural state exhibited...

Author(s): O. Omole, James O. Adeleye, Olugbenga Falode, S. Malomo and O. A. Oyedeji

  • Article Number: 0A6F2014676

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