Multi Zone Smart Well Completions Challenges in Highly Deviated Wells and Its Impact on Well Planning and Field Development

In multilayered reservoirs, major focus has been on the usage of smart well completion technologies to help improve recoveries, particularly with technological improvements and an increasing expanse of opportunities in more challenging and rewarding assets. The fundamental focus has been to design well completions that integrate several surface/subsurface sub zones and automate the flow control from each zone. In Multi zone Smart Completion Wells where significant investment is made to complete smart wells with remotely controlled inflow control valves (ICV), reservoir sweep & drain accessibilities becomes decisive when evaluating the efficiency of recovery and long-term field development strategy. Smart completion designs for multi-lateral wells present many challenges in terms of completion deployment and interventions in life of well. The complexity of operations increases with deviation, type of completion equipment, number of zones and planned interventions. In offshore, UAE a similar multilateral well was designed to be completed with 4 zone smart completion and had a mandatory requirement of accessibility to lower most drain (for future interventions) with the ability to plug the lower drain till future requirements arises. A solution is to utilize nipple & blanking plug in lower most drain, which was implemented in this well. Upon successful deployment of completion, plug was retrieved on coil tubing and lower drain accessibility was confirmed. However, during re-installation of blanking plug on coil tubing in deviated section, issues were encountered to pass through the ICV profiles. In attempts to pass through ICV profiles, blanking plug and running tool got disconnected from coil tubing, leaving the fish inside one of ICV valve. Several attempts were made to retrieve the blanking plug with rig on coil tubing without success by using thru-tubing fishing equipment options available in country. Well was suspend to work-out fishing strategy & evaluate availability of fishing equipment worldwide. Consideration was done for design and manufacture application specific fishing tools to perform workover with barge for such smart completion, as it includes a number of downhole components that makes its retrieval more challenging, and there are no standard procedure or provision in place to retrieve such complex completions in highly deviated section. A barge was mobilized with coil tubing, which performed the fishing operation as planned. Careful selection of equipment's, BHA and operational parameters resulted in successful retrieval of blanking plug & running tools. Accessibility to well was gain and confirmed. This paper presents the situation that was faced, the remedial work done to complete well, fishing operations and the subsequent factors considered for choice of equipment and operation on well. This paper concludes a detailed account of factors to consider for planning smart completions in horizontal multilateral wells & the successful fishing operation – an excellent example of how careful planning, dedicated project management, specialized design fishing tools, experienced personnel and a collaborative relationship between team's leads to a successful operation and prevented an extremely expensive workover of a high technology completion well.

Translation Practice – A Means for Enhancing Student Employability

Recent studies on employers’ expectations regarding the language skills of their employees, as well as the language-related tasks the latter are expected to perform, show that translation activities are essential for everyday business operations. With this in mind, the paper aims to explore the benefits of using translation activities in developing ESP learners’ language skills, as well as domain-specific knowledge, so as to meet the demands on the labour market. The case study describes the following steps: student exposure to minimal training in translation steps and strategies, classroom practice on excerpts from economic articles, home translations of full-length economic articles. Feedback exchange on classwork and homework points to the relevance of such activities embedded in Business English lessons: on the one hand, students increase their awareness of language and employabilityrelated aspects; on the other hand, the teacher identifies best practice examples, apart from needs regarding remedial work.

Proven Technologies and Solutions for Successful Production Enhancement in Malaysia with Array Production Logging

M field is a faulted anticline structure that lies in a deepwater turbidite environment. Field Development started in late 2016, with 10 oil producers and 2 water injectors. Within 2 years of production, significant GOR increase in some of the wells led to production curtailment, which has impacted the field production promise. Poor injectivity seen in one of the water injectors also led to an assumption of compartmentalization or sandface plugging/damage that required investigation. In order to evaluate intervention opportunities to mitigate against the high GORs and to determine the cause of the poor injectivity, production logging tools were proposed in four candidate wells. The objectives of the logging campaign were: To understand the gas influx profile into the well and how different compartments are contributing to the GOR Assess behaviour of G/O, O/O, O/W crossflows and their impact on reservoir depletion profile Aid decisions in requirements for downhole controls (i.e. AICD placement) vs surface controls Provide opportunity to couple PL logs with PNC logs to identify potential GOCs, estimate gas/water saturations and determine if there are any bypassed oils Based on the candidate wells, the following challenges were present: Highly-deviated/horizontal wells requiring complex conveyance solutions Multiphase flows (gas, oil and potentially water) in highly deviated conditions which further complicates fluid phase contribution calculations and velocity modeling Rig up height limitations on the platform which requires shorter logging tool strings High flowrates with tool lift limits requiring careful modelling work to ensure risks are understood and minimized In view of these challenges, a new Array Production Logging Tool (henceforth called New-APLT) was proposed as an alternative to the previous generation APLT. It has a more robust design with co-located sensors in a single module with additional optical sensors that improves flow measurement and gas detection. Additionally, screen tracers sampling was proposed in one well, which would help calibrate the tracer interpretations against actual fluid rates. The novel approach and synergistic efforts amongst many disciplines led to a successful execution of the logging campaign, and the first ever deployment of the New-APLT tool on e-line tractor. The timely results from the campaign which coincided with a 4D seismic acquisition has helped to justify downhole control options for some of the wells, and potentially helped to avoid costly remedial work on the water injector. The valuable dataset will also influence the infill development well campaign location, design and well count.

Use diagnostic testing to improve student learning outcomes

The article describes the practical process of diagnostic screening in grade 5. After determining the proportion of students' strengths and weaknesses, remedial work was planned and a rehabilitation program was implemented in accordance with the competencies. This process is discussed in the given article. The table presents the results of the target pretest and a similar post test.

New Downhole Sand Entry Detection Technology Leads Directly to Successful Remedial Work and Additional Oil Production

The consequences of sand production are often disadvantageous to the short and long-term productivity of the well. Although some wells routinely experience controllable sand production, these are the exception rather than the rule. Sand production and its management over the life of the well is not an attractive situation but is often essential to extract the resource. Knowing the root cause behind sand inflow in a well and the possible results can inform an appropriate strategy to safely extract as much of the resource as possible. The sands in such reservoir units often have high permeability and are mechanically weak and prone to sand production. The producing wells are often completed with gravel-packed completions for efficient sand control. Most of the wells have multi-zone completions for better productivity but this further complicates reservoir characterization. This paper describes the first use of downhole sand impact detection technology in such fields. The sand detection technology integrates the fully digitized high-resolution acquisition with signal processing and interpretation algorithm to enhance the sand particle detections as small as 0.1 mm in diameter and up to 1,500 impacts per second. The tool is designed to immune the sensors from any background noise and gas/liquid jetting effect. A combination of production logging tools (PLT) and the sand impact detection tool, was used to understand four phase zonal contributions (gas, oil, water and sand) and pinpoint sand entry in these cases. Results exceeded expectations and the ability for the sand detection tool to accurately detect the point of sand entry enabled immediate intervention to eliminate sand production in these case studies. One of them also resulted in increased production of 7.4kb/d oil without any sand flow and with greatly reduced gas-oil ratio as compared to pre-intervention production. The work clearly demonstrates the practical and effective use of downhole sand impact detection with new sand detection technology to identify and isolate sand production in wells. The innovative tool design makes it feasible to detect even small sand particles in adverse wellbore conditions and varied production rates, thus adding a detection of the fourth phase in an otherwise three phase production log.

Group psychological counselling as a form of prevention of adolescent addictive behaviour

This article provides an analysis of domestic and foreign literature on the concept of “adolescent addictive behaviour,” summarises its scientific understanding, and outlines the mechanisms of the emergence of addictive behaviour and psychological characteristics of adolescents exhibiting addictive behaviour. The study presents a review of modern research on the problems of Internet-, food-, and alcohol addictions. The review includes Russian, Kazakh and international literature on the psychological prevention of adolescent addictive behaviour. The concept of the “psychological prevention of adolescent addictive behaviour” is disclosed, and the principles and objectives of preventive work with adolescents prone to addictive behaviour are defined. A set of diagnostic techniques is proposed to study the predilection of adolescents to addictive behaviour. The article reveals the content and effectiveness of the programme for the psychological prevention of adolescents’ predisposition to addictive behaviour by means of group psychological counselling. The authors describe the course of experimental work on the study of adolescents’ predisposition to addictive behaviour, present the testing of the developed psychological programme, and demonstrate the effectiveness of adolescents’ group counselling to prevent their addictive behaviour. The results of the study confirm the authors’ hypothesis that the use of group forms of psychological counselling is effective in psychological prevention, as it relies on the activity of adolescents. The results of the study contribute to the development of preventive pedagogy and psychology, and the improvement of the modern system of anti-alcohol and anti-drug education of adolescents. The study findings can be also used in educational institutions in advisory and remedial work with adolescents.

Physical Education Implementation in Secondary Schools a Challenge to Teachers and Learners: A Case of Serenje District, Central Province-Zambia

This Study Investigated What The Implementation Of Physical Education Brought To PE Teachers And Learners In Secondary Schools Of Serenje District, Central Province- Zambia. A Case Study Design Was Adopted. The Sample Was Chosen Purposefully And Consisted 110 Respondents To Which 32 Were PE Teachers, 6 Head Teachers, 6 Heads Of Department For Expressive Arts (PE) And 6 Heads Of Section For Expressive Arts. Others Were 60 Pupils (30 Boys And 30 Girls) From Secondary Schools Of Serenje District. The Quantitative And Qualitative Designs Were Used To Gather Information From PE Teachers, Administrators And Pupils. Semi-Structured Interviews And Focus Group Discussions Were The Main Research Instruments. Data Was Gathered Through Focused Group Discussions For Learners, While Semi-Structured Interviews Were Conducted For Teachers And Administrators. The Statistical Package For Social Science (SPSS-Version16) Was Used To Analyse Quantitative Data. The Analysis Involved Frequencies And Percentages Of Particular Responses Which Were Presented By Using Pie Charts And Bar-Charts. The Qualitative Data Was Analysed Manually. The Findings Of The Study Were That; Less PE Time Was Allocated, Use Of PE Class Time For Remedial Work Was Dedicated To Such Subjects Like Science, Mathematics And English, And There Was Generally Negative Attitude Among Other Teachers And Administrators Towards PE Subject. In This Regard, PE Teachers Had To Continually Provide Justification For The Existence Of Their Subject And Plead For Actual Control Of The Time They Were Allocated.

Modelling of Teaching for Pre-School Children with Mental Retardation

The article discusses the experience of using models in remedial work with children with mental retardation of preschool age in kindergarten conditions. Examples of outlines of lessons with this category of preschool children 6-7 years old are offered. The reactions of children to the introduction of models are illustrated. The aim of the article is to show that models are an effective technique for children with mental retardation to perceive cognitive material, because they stimulate children to independent voluntary purposeful activity. This is facilitated by the model algorithm, which includes generalized images that are familiar to children and do not cause them difficulties. We have taken into account that for children with mental retardation the operation "comparison" is one of the difficult ones, but through it the relations between objects and phenomena of the external world are learned. Comparison therefore plays an important role in cognition Comparison helps to generalise and systematise knowledge. The process of comparison is a necessary condition for generalisation. The model can help children with mental retardation to find similarities between objects, which for them is rather more difficult than finding differences.

Infill Depleted Gas Well Cementing Challenges for Offshore Myanmar Drilling Operations

Infill well drilling was planned and executed to increase production in a significantly depleted field. A total of 3 infill wells were drilled in 2 different layers of reservoir for an offshore operator in Myanmar. In the offset wells, water production had become significantly higher throughout. Previously all offset wells in this field were completed with open hole sand screens was chosen to isolate the water bearing sand in the sand reservoir below. Pore pressure prognosis were calculated from offset well depletion rate. Reservoir formation properties is assumed to be same throughout the field. The first well was drilled and was found that there were two gas water contacts through the 3 targeted sand layers. The gas water contact and WUT (Water Up To) in this well were unexpected and it was prognosed that these gas water contact are there due to compartmentalization. The 7" liner were set and cemented throughout these reservoirs. The cement job went as per the plan and there were no losses recorded during cementing. However, initial cement log did not show isolation. 2 more runs of cement log were performed 6 days and 10 days later while conducting intervention activities on other wells. All three cement log came to the same conclusion, showing no isolation throughout the annulus of the 7" production liner. Significant amount of gas had percolated into the annulus over time. Despite no evidence of poor cement slurry design observed during running various sensitivity studies and post-job lab tests final cement log, which was conducted under pressure and confirmed no hydraulic isolation. A cement remedial job was planned and an investigation was conducted to identify the plausible root causes. This paper explains on the root causes of poor cement presence in the annulus, and the remedial work that took place to rectify the issue.

Successful Application of Managed Pressure Drilling MPD Technology to Reach TD in a Narrow Margin HPHT Well in the North Sea – A Case History

This paper reviews the recently concluded successful application of a Managed Pressure Drilling (MPD) system on a High-Pressure High-Temperature (HPHT) well with Narrow Mud Weight Window (NMWW) in the UK sector in the Central North Sea. Well-A was drilled with the Constant Bottom Hole Pressure (CBHP) version of MPD with a mud weight statically underbalanced and dynamically close to formation pore pressure. Whilst drilling the 12-1/2" section of the well with statically under-balanced mud weight, to minimize the overbalance across the open hole, an influx was detected by the MPD system as a result of drilling into a pressure ramp. The MPD system allowed surface back pressure to be applied and the primary barrier of the well re-established, resulting in a minimal influx volume of 0.06 m3 and the ability to circulate the influx out by keeping the Stand Pipe Pressure (SPP) constant while adjusting Surface Back Pressure (SBP) through the MPD chokes in less than 4 hours with a single circulation. After reaching the 12-1/2" section TD, only ~0.025sg (175 psi) Equivalent Mud Weight (EMW) window was available to displace the well and pull out of hole (POOH) the bottom hole assembly (BHA) therefore, 3 × LCM pills of different concentrations were pumped and squeezed into the formation with SBP to enhance the NMWW to 0.035sg EMW (245 psi) deemed necessary to kill the well and retrieve BHA. MPD allowed efficient cement squeeze operations to be performed in order to cement the fractured/weak zones which sufficiently strengthened the well bore to continue drilling. A series of Dynamic Pore Pressure and Formation Integrity Tests (DPPT and DFIT) were performed to evaluate the formation strength post remedial work and to define the updated MMW. Despite the challenges, the MPD system enabled the delivery of a conventionally un-drillable well to target depth (TD) without any unplanned increase/decrease in mud weight or any costly contingency architecture operations, whilst decreasing the amount of NPT (Non Productive Time) and ILT (Invisible Lost Time) incurred. This paper discusses the planning, design, and execution of MPD operations on the Infill Well-A, the results achieved, and lessons learned that recommend using the technology both as an enabler and performance enhancer.