News

New Publications	IESL has two new publications related to sand face completion and sand management. The material is to be presented at the 4th European Sand Management Forum to be held in Aberdeen, U.K. during the 10th & 11th of March 2010. Jointly with our customers in the North Sea and Latin America, the material illustrates successful case studies for their operations resulting from the use of our analytical systems, expertise and support. Both documents can be downloaded from our publications site or from the SMN site at www.sandmanagement.com
Stress caging upgrade for GeoDRILL	Our GeoDRILL system for wellbore stability analysis has been upgraded to be able to design the stress caging effect. An extensive laboratory testing program was carried out to determine the optimum conditions and replicate the physical process associated with stress caging. Using GeoDRILL, loss circulation can now be predicted and a program designed to minimize/avoid losses while drilling through fractured reservoirs or treating drilling induced losses.
Continuous success for Chestnut sand management programme	Due to continuous success with the Chestnut sand management programme, Centrica Energy Upstream has awarded IESL an extension of the current sand management contract for the Chestnut field in block 22/2a. To date, under this program, over half a million barrels of oil been produced successfully from the field while managing more than 30 tonnes of produced sand without environmental or impact on production. This award for the remaining life of the field is a credit to the continuous effort and contribution made by IESL engineers to maximize production, ensure systems and plant mechanical integrity and minimize cost. Additional petroleum engineering, flow assurance and systems integrity duties confirm the trust and confidence placed by Centrica on IESL’s expertise.
Wellbore stability for Casing drilling operations	Drilling through the reservoir using casing drilling technology requires an accurate understanding of the dynamic pressures being applied to the formation during the process. IESL has utilized its GeoDRILLÆ system to find a safe operating mud weight envelope for Perenco's casing drilling operations. The resulting model showed an outstanding match with the recorded drilling data for the pilot hole. It allowed safe operating limits to be established. BHA manipulation guidelines and optimization of hole cleaning operations could be also achieved.
SynCAL™ 4 Arm	SynCAL™ is IESL's successful system for the prediction of hole quality/size and sand production volumes. After an intensive research effort, we have enhanced its capabilities to be a Synthetic 4 Arm calliper for use in applications such as determining stress anisotropy and orientation, cementing and casing design.
Carboniferous sands in the Southern North Sea	IESL has been awarded work by Gaz de France to develop sand face completion options for the Carboniferous sandstones in the Southern North Sea. The work includes developing new geomechanical models for this gas sand reservoir and determining the optimum drilling and sand face completion options to successfully exploit the reservoir.
Continued GeoDRILL™ success in Peru	Perenco Peru has successfully completed its first development well in the Northern jungle in block 67; IESL developed the wellbore stability models based on its large expertise in the area. The well was drilled successfully with a difference of up to 0.3 ppg with respect to the recommended mud weight.
R & D for drilling in fractured reservoirs	Using our newly launched laboratory capability, IESL is carrying out a testing program to developed specific guidelines for mud solids size selection in fractured reservoirs. The program involves flow testing through fractured dolomite and limestone samples for a large range of solid's size. The results are allowing development of a better understanding and the predictive models to successfully drilling through this type of reservoirs.
Fast, reliable and effective testing capability	For the last two years IESL has been carrying out mechanical testing using a Rapid Low Impact Strength Test (RLIST) methodology. Over 5000 feet of core material has been tested successfully for our customers all over the world. We have extended our capability in order to provide our customers with cost effective, rapid, first class results. Based on our core expertise in well construction, completion and geomechanics, we are now able to provide grain size characterisation, flow testing and reservoir characterisation (porosity-permeability) test capabilities. New technology such as Visual Imaging and non-destructive impact are used and measurements can be taken either at IESL’s custom built testing premises or at the core storage facility.
New Customer	IESL has been awarded work by Perenco for the evaluation of the geomechanical issues associated with wellbore stability in their exploration wells. Based on IESL's tools and systems such as GeoDRILL and the large experience developed in geomechanical applications, Perenco identified the need to minimise the risk this important new exploration projects
Sand Management Update	IESL was awarded in March the development and implementation of a sand management strategy for one of Venture's subsea fields. The sand management team has successfully produced over 160 thousand barrels of crude and over 30 tones of sand without compromising system integrity (pipeline, wells & process) and with over 80% uptime. A detailed and continuous monitoring process has ensured safe and efficient management of the problem.
Wellbore stability for Centrica	IESL has completed wellbore stability work for Centrica UK for their new drilling programme in the Southern North Sea. Based on work carried out in 2005 for the same field, IESL was able to add value to Centrica operations through the use and enhancement of existing models and simulations in order to optimise the OMW envelope for the new wells.
Continued expansion	Latin America has been since 2004 one of IESL's major markets, a great effort has been made to identify the needs of our customers and to contribute to them throughout the region. After setting a base in Venezuela in 2006, IESL has taken another step in those efforts by setting a permanent presence in Peru. Based in Lima, IESL's personnel will support our increasing customer base in Ecuador, Bolivia, Argentina and Brazil.
Sand management programme awarded	IESL has been awarded work by Venture production to develop and implement a sand management programme for one of their UKCS fields. Working with Venture engineers and contractors the programme will develop and implement strategies and technical/operational guidelines to manage daily field operations for solids production, well pressures and process maintenance.
New Publication	IESL is publishing recently completed work at the SPE Formation Damage Conference to be held in Scheveningen, The Netherlands in June 2009. The paper based on IESL's well productivity systems is entitled “An inflow prediction model for open hole gravel pack and frac & pack completions” it allows prediction of the flow impairment of gravel pack completions as a result of damaging mechanisms and reservoir contribution changes. See our publications page and Links to have access to the paper.
Wellbore stability for Centrica	IESL has completed wellbore stability work for Centrica UK for their new Irish Sea drilling programme, the well is to be drilled in a partially depleted area of the field. This work took advantage of large data sets and results of ongoing projects developed by IESL in this area. They include rock strength testing using IESL Rapid Low Impact Strength Test RLIST " method that allows mechanical characterisation of the various formations. Dynamic OMW and hydraulic parameters were optimised to allow safe and effective drilling of the well.
New Product launch GeoDAMAGE" for production optimisation	IESL has launched a new system GeoDAMAGE" for use in well and reservoir production optimisation. The methodology allows determination of the main formation damage components at the near wellbore or far into the reservoir. Fluid and solid's invasion damage, perforating damage and reservoir mechanical damage can all be characterised and measures taken to avoid or minimise their impact on productivity and reserves recovery.
UGS - Reservoir mechanical performance modelling for Centrica UK	Centrica UK has awarded AXIS and IESL the development of a model to determine the mechanical performance of a sandstone reservoir highly depleted. The activities include development and validation of a constitutive model for a sandstone reservoir in a highly tectonic area in order to quantify the resulting changes in petrophysical properties throughout the field.
Wellbore stability for Gas storage applications	IESL has completed another successful project for a gas storage project in the Irish Sea. The study covered the wellbore stability and sanding risk analysis for the Bains field, which will be re-developed as a gas storage by Centrica. Pressure cycling and current depletion effects were some of the biggest challenges encountered during this work.
Formation damage for underbalance perforating in the Clyde field	IESL has completed formation damage characterisation work for the determination of the optimum dynamic underbalance pressures for perforating in the Clyde field. Based on similar successful work in Talisman’s Blane field IESL integrated core test analysis into its GeoPerforation system to identify mechanical, fluid and solid’s invasion damage and determine the optimum dynamic underbalance to effectively clean up the sand face.
Venture’s Chestnut field start up	Venture’s Chestnut field was recently put in production / injection. With three wells in the field all completed with sand control, it was critical that start up was optimised in order to realistically cope with potential contingencies that could be encountered. IESL’s have been successfully involved in Chestnut since 1997 and is proud to have contributed to Venture’s success.
IESL’s team wishes you ...	Another year has gone by and we have continued to go from strength to strength. The continuous support of our customers during 2008 is very much appreciated, from the Peruvian Andes to Indonesia IESL’s team has made a major effort to contribute to the success of our customers. This support is a motivation to continue delivering excellence in applied engineering and innovation for the coming year. We wish you a very happy Christmas and a successful New Year 2009. You can count on IESL.
Well performance analysis for the SNS	IESL has completed a well performance evaluation project for Venture Production in their Southern North Sea prospects. The project evaluated potential well performance and constraints such as depletion, sand production risk and reservoir properties uncertainty. The results will allow Venture engineers to design the best development strategy for this important assets.
IESL and HOT Engineering, Vienna, Austria	IESL and HOT Engineering in Vienna, Austria have developed an association for training and knowledge transfer programs. IESL will present two(2) training programs next year in Vienna and Kuala Lumpur on Well Completion for Reservoirs with sanding problems. IESL will bring a large experience base at training level after more than 50 courses delivered in the last 8 years worldwide. With over 25 years of experience in the subject IESL’s contribution will be significant. To see schedule and book a place use the following link: www.hoteng.com/en/training/public_courses/Production_Engineering
SPMS for Bowleven in Gabon	IESL has been awarded geomechanical work for Gabon. Working along with Axis engineers the project will deliver an optimised sand face completion design for Bowleven Gabon subsidiary
IESL starts working in the Camisea gas field	IESL has been awarded work for the Camisea gas project in Central Peru. The work is the result of a very successful relationship between IESL and Pluspetrol that has allowed the customer to realise benefits in their drilling and production programs through all their operations in Peru. Camisea is one of the largest gas fields in production in South America
Master Class in Wellbore stability and geopressures for PDVSA	PDVSA invited IESL to present the Master Class for the 1st Technical Seminar on Wellbore Stability and Geopressures held in Los Teques, Venezuela from the 6 – 7 of November 2008. The forum is an opportunity to discuss topics of interest and experience in all the operating areas of PDVSA
GeoCompletion for shallow gas	Venture production has awarded IESL work for the development of the Optimum sand face completion design for one of its gas assets. The work involved shallow gas prospects in the UKCS, geomechanical and production models were developed for the reservoir and the optimum sand face completion identified successfully.
IESL at INGEPET	IESL will be exhibiting its products and services at INGEPET, one of the leading technical conferences in Latin America which this year is being held in Lima, Peru from the 12 to the 16 of October. Our operations in Latin America are very successful with offices in Valencia, Venezuela and servicing customers in Peru, Trinidad and Venezuela.
GeoCompletion for gas storage fields	Gas storage reservoirs are submitted to pressure cycling throughout the year as part of its operating function. IESL completed work on the design of the optimum sand face completion for a sandstone reservoir in mainland Europe. A number of completion options were evaluated using a number of analytical models in order to select the optimum solution for such a demanding application
GeoDRILL for highly fractured carbonates	IESL has completed wellbore stability work for highly fractured carbonates in the Middle East. The results involved the utilisation of advanced geomechanical models to predict the optimum mud weight envelop considering very long fractured interval through the well path.
IESL’s Gravel pack technology	IESL has been working in developing technology for gravel packed completions for a number of years. Our CleanPAQ system was the first result of it and now we have concluded work on a system to predict filter media inflow. This development will allow our customers to predict GP performance based on the quality of the reservoir, mud system and completion practices.
IESL and Axis	IESL and Axis continue to work successfully in a number of projects. IESL’s geomechanical expertise integrated into Axis’s vast well testing and completion experience has resulted in new work for clients in Thailand, The Netherlands and the Middle East.
The Custodian continues to grow	Pluspetrol Peru has awarded work to IESL for the continuous development of their large Geomechanical system, The Custodian. The work involves extending the system to cover two additional fields which will be characterised completely and the geomechanical model for each one developed. It follows the continuous success obtained with the current system that is currently being used for a variety of geomechanical applications
GeoPerforation for offshore Venezuela	IESL and PDVSA engineers have completed perforating design work for their high rate gas wells offshore Venezuela. The work involved the determination of the optimum underbalance conditions for perforating as well as gun performance prediction using IESL methodology GeoPerforation which has been so successfully implemented in other areas particularly the North Sea.
Knowledge Transfer programs continued success	IESL was awarded the development of a Knowledge Transfer module for the M.Sc. program of the Universidad Bolivariana de Venezuela - UBV in Maturin, Estado Monagas. The program in well completion and sand control was very successful and had 24 participants. This is the first overseas academic success for IESL which has had a 10 years successful association with the Robert Gordon University in Aberdeen.
Dynamic perforating	Talisman Energy has awarded IESL work to develop formation mechanical properties profiles and identify potential sources of formation damage. Based on IESL’s GeoPerforation” system and the successful results obtained on both Blane and Clyde fields, Talisman expects to optimise its perforation design strategies to ensure maximum well production and injection in their fields.
Returning to Ceuta	IESL has been awarded work by PDVSA to identify the challenges for development of the Ceuta field in Lake Maracaibo, Venezuela. The work involves working with PDVSA’s engineers to review completion performance in the field known as one of the more demanding in Occidente due to its difficult geomechanical settings. IESL will develop along with PDVSA engineers technical solutions to their current designs.
Strength testing	Talisman Energy has awarded IESL work to carry out rock strength testing on core material from the Clyde field. Based on a rapidly growing and very successful testing record with over 1500 feet of core test in the last 18 months IESL will test the existing core on site in order to build geomechanical models for the field.
New Publication	IESL and Pluspetrol Peru have published detailed work on formation strength determination for water injection wells. The paper was presented at the Society of Petroleum Engineers conference in Rome, Italy that was held on the 10 – 14 of June. The paper presented describes the results from a large laboratory program and simulation work to determine the effect of thermal changes on rock strength. The paper can be downloaded from the SPE site, paper No. 113 825.
IESL & Axis	IESL and Axis Technologies have completed asset optimization work for Pluspetrol Peru. The work involved working with Pluspetrol engineers in developing well and pipeline network models for two(2) fields in Northern Peru. The results will allow the customer to remove the bottlenecks in the system and ensure maximum productivity for the fields.
UCS Testing	IESL has achieved a milestone of over 1500 feet of testing record carried out using a non-destructive unconfined strength test method. The tests completed for wellbore stability, completion and perforating design applications have been carried out in Norway, Venezuela, Peru and the UK. This technique has simplified the data acquisition and quality for strength testing and contribute to deliver cost effective, faster and better quality work for our customers
PDVSA Sur	IESL has been awarded work by PDVSA to develop sand face completion designs for their Guafita field in Southern Venezuela. The work involves working with PDVSA’s engineers to review completion performance in the area and develop technical solutions to their current designs.
HP/HT Completion	IESL has been awarded work by Venture Production UK for the sand face completion of a HP/HT prospect in the North Sea. Based on the continuous success in supporting VPC operations and recent HP/HT work completed for their Acorn field IESL continues to deliver consistent results that allow our customers to minimise their operational risk
First Offshore gas for PDVSA	Petroleos de Venezuela S.A. has awarded IESL the sand face completion design work for their Dragon field located offshore Eastern Venezuela. PDVSA is undertaking this critical development and selected IESL based on previous success of their "GeoCompletion" and "GeoPerforation” systems used for design and optimisation of sand face completions.
Working with AXIS Well Technology	AXIS Well Technology and IESL have agreed to work together in the area of Well Construction, IESL will support AXIS in Geosciences, Geomechanics and sand face completion projects. This is a major achievement for IESL that has been based on the company’s long term trajectory and recognition as one of the leaders in applied Geomechanics .
New Publication	IESL, a founding member of the Sand Management Network in Aberdeen, Scotland has participated in the 2008 European Sand Management Forum sponsored by the Sand Management Network and the Society of Petroleum Engineers, held in Aberdeen on the 13 – 19 of March. The paper presented describes the design and installation process of an expandable sand face completion for a multi-purpose well. The paper can be downloaded from our site at www.iesl-global.com
Dynamic perforating	Talisman Energy has awarded IESL work to develop well perforation programs using dynamic underbalance for its Blane field in Norwegian waters. Based on IESL’s GeoPerforation” system and the results obtained in the Clyde field, Talisman expects to optimise its perforation design strategies to ensure maximum well production and injection in their fields.
New Customer	Fairfield Energy has awarded IESL work for the development of geomechanical models for their Southern North Sea fields. The work includes the development and execution of a mechanical core testing program for use in calibration of the models.
GeoDRILL news	IESL’s main system for drilling optimization have been improved to provide higher value to our customers. A number of rock failure criteria have been added as well as strength correlations particularly for deep water applications. A hydraulic module that can be used to optimise drilling fluid’s performance and wellbore cleaning has also been included.
Lagomar is a go	PDVSA Occidente has awarded IESL work to develop sand face completion options and strategy for the Lagomar field. Located in Lake Maracaibo the field has suffered from sand production and geomechanical problems. A number of options have been tried and working with PDVSA engineers we hope to deliver sound solutions to the sand production problems.
New producer	Venture Production has awarded IESL sand face completion design for their new producer in the Chestnut field. Based on over 8 years of work in the field IESL has developed a unique expertise and understanding of the field to continue working with Venture engineers to deliver maximum cost effective productivity from the field.
Asset production Optimization	Pluspetrol has awarded IESL the production optimization work for their Shiviyacu and Carmen fields in block 1AB. The work involves working with Pluspetrol engineers in developing field and network performance models and carrying out simulations to establish areas for potential optimisation. This work follows the successful completion last year of the Capahuari field work.
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