SAGD ESP Intake Design Improvement

2021 ◽  
Author(s):  
Frank Zhong ◽  
Patrick Keough ◽  
Kjellb Martel ◽  
Richard Delaloye ◽  
Curtis Goulet ◽  
...  
Keyword(s):  
Pressure Loss ◽  
Produced Water ◽  
Flow Paths ◽  
Severe Motor ◽  
Working Together ◽  
Electrical Submersible Pump ◽  
Motor Load ◽  
Improved Design ◽  
The Right ◽  
Intake Flow

Abstract One of the major challenges in SAGD Electrical Submersible Pump (ESP) operation is produced water flashing to steam when flowing pressure loss is significant, such as at an ESP intake. "Bottom Feeder" style intakes are a standard SAGD ESP intake which has been applied in the SAGD industry for over a decade. However,it was identified in recent years at ConocoPhillips's (CPC) Surmont Oilsands operations that Bottom Feeder intakes can lead to steam flashing in pump at the right conditions. The flashed steam causes significant cavitation in pump, which in turn causes severe motor load chattering. Further to that, steam locking in the pump can occur, which is called a "no flow event" (NFE) in the SAGD industry. ConocoPhillips and Baker Hughes have been working together to optimize SAGD ESPs by utilizing an integral intake to minimize the pressure loss across the intake ports. This would also streamline the connection between intake and pump housing to minimize pressure loss at these intake flow paths. The improved design has been tested in Surmont successfully, and the integral intake has become an optional intake to be applied in the well cases where steam flashing has been known to cause operation interruptions or ESP damages. This paper will review the process undertaken by CPC and Baker Hughes to study the ESP performance with the bottom feeder intake in comparison to the ESP performance with an integral intake.Design and field data will be presented and reviewed to highlight the performance of each system.

ESP Optimization Goes Further: Operating Frequency Beyond 60 Hz

2020 ◽  
Author(s):  
A. Muklas
Keyword(s):  
Circuit Breaker ◽  
Load Level ◽  
Operating Frequency ◽  
Well Test ◽  
Acceptable Range ◽  
Artificial Lift ◽  
Harmonic Filter ◽  
Electrical Submersible Pump ◽  
Motor Load ◽  
Frequency Changes

Optimization in brown field developments is always challenging in terms of cost. One of it is XY Field, Rimau Block, South Sumatera with more than 70% of artificial lift is Electrical Submersible Pump (ESP). At ESP wells that are already running at maximum operating frequency of 60 Hz, some are still having problems to optimize their potential. The option to replace the pump with a higher rate is less of an option due to high cost. This leaves an opportunity to gain oil production by increasing frequency above 60 Hz. Upon discussion with the ESP Principal on the risks and possibilities, a trial was then planned for 3-wells. Candidates are selected from the list of ESP wells with the following criteria such as already operated at 60 Hz, still have sufficient fluid submergence, and based on simulated motor load at 70 Hz is still at safe motor load level. Frequency was increased gradually while continuously monitoring ESP Parameters (motor load, voltage and harmonic). It is also necessary to monitor the cable temperature as it is directly affected by the frequency changes. For each frequency increment, a well test is also performed to monitor the production changes. The trial was done on 3-wells (XY-364, XY-370 and XY-378), with the following promising results. XY-364 and XY-378 successfully reached the targeted 70Hz, while XY-370 stopped at 65Hz due to a cable temperature issue. Oil gain from this optimization was 48 BOPD with 1,043 BLPD and similar BS&W profile. ESP operation still normal until present day with all parameters at acceptable range. There were, however, challenges found during the trial. Cable temperature of XY-364 increased at junction box and found cable scun loosen. The problem was solved by replacing the cables. For XY-370, found temperature increment at moulded case circuit breaker during trial at 65 Hz. It was decided to hold at existing frequency. Unbalanced motor load at XY-364 and broken capacitor at XY-370 occurred at Harmonic Filter. The problem was solved by replacing the capacitor. The trial proves that we can operate ESP higher than base frequency (60 Hz) and resulted in decent oil gain. This opens an opportunity in ESP optimization above 60 Hz at an even larger scale.

Parents and educators: Partners working together in an inclusive setting

1993 ◽  
Vol 3 ◽  
pp. 33-49
Author(s):  
Sebastian (Nello) Raciti
Keyword(s):  
Decision Making ◽  
School Level ◽  
Collaborative Consultation ◽  
Local School ◽  
Participatory Decision Making ◽  
Intervention Plan ◽  
Consultation Model ◽  
Working Together ◽  
The Right ◽  
Contextual Setting

Parents have the right to participate in the educational planning for their child with a disability, however they often need assistance when interacting with professionals to ensure the best programs for their children. Professionals also require guidelines and opportunities to develop appropriate communication skills when interacting with other professionals and parents. This paper investigates the level of participatory decision-making which exists between parents and professionals, and professionals amongst themselves. The present thrust for including children with a disability in mainstream schools is used as the contextual setting for this investigation. Furthermore, the author presents an intervention plan based on the Collaborative Consultation Model to enhance the participatory decision-making skills of parents and professionals at the local school level.

Finding the Right Person and Working Together

1989 ◽  
Vol 29 (6) ◽  
pp. 845-845
Author(s):  
A. Nevins ◽  
C. Pendzick-Grimaldi
Keyword(s):  
Working Together ◽  
The Right

Corrective Solutions for the Shaft with Flange Used for Fixing the Blade on a 5 kW Wind Turbine to Withstand Extreme Weather Conditions

2014 ◽  
Vol 1029 ◽  
pp. 118-123
Author(s):  
Rodica Bădărău ◽  
Teodor Miloş ◽  
Ilare Bordeaşu ◽  
Adrian Bej
Keyword(s):  
Mechanical Strength ◽  
Wind Turbine ◽  
Weather Conditions ◽  
Extreme Weather ◽  
Original Solution ◽  
Root Area ◽  
Materials Used ◽  
Improved Design ◽  
The Right ◽  
Technical Solutions

The paper presents a case study on the original solution of a flange shaft as part of the root area of a 5 kW wind turbine blade. There were analyzed the causes that led to the shaft breakage under wind loadings in extreme weather conditions, and consequently technical solutions have been searched in order to improve the shaft design making it more reliable as mechanical strength at extreme wind loadings. The flange shaft is a welded subassembly that keeps the blades attached to the rotor hub. The first part of the paper consists in an analysis referring the loading status, the materials used for blade manufacturing, the identification of critical areas where the breaking was initiated and also the causes for which the materials assumed and specified in the technical design and manufacturing technology failed under loading at wind gusts of about 30 m/sec. Based on this preliminary analysis, the second part of the paper presents the technical solutions which were considered in reference to the materials and the improved design concept aiming to provide the right mechanical strength necessary to withstand specific wind loadings in extreme weather conditions.

Challenges of Working Together

2015 ◽  
pp. 105-110
Author(s):  
Lara Snyder
Keyword(s):  
Public Health ◽  
Health Professionals ◽  
The United States ◽  
Federal Agencies ◽  
Community Members ◽  
Policy Makers ◽  
Public Health Professionals ◽  
Working Together ◽  
Primary Care Clinicians ◽  
The Right

Drawing on the experiences of hundreds of public health and primary care clinicians from across the United States, this book explains why population health is receiving so much attention from policy makers in states and federal agencies, the practical steps that clinicians and public health professionals can take to work together to meet the needs of their community, signs that you are on the right track (or not) and how to sustain successes to the benefit of patients, community members, and the health care and public health teams that care for them.

Safety leadership and collaboration in the Queensland natural gas exploration and production industry

2016 ◽  
Vol 56 (2) ◽  
pp. 548
Author(s):  
Walter Simpson ◽  
Mark Greene ◽  
Sean O'Donnell ◽  
Michelle Zaunbrecher ◽  
Warwick King ◽  
...  
Keyword(s):  
Natural Gas ◽  
Geographical Area ◽  
Senior Leaders ◽  
Exploration And Production ◽  
Working Together ◽  
Natural Outcome ◽  
Set Up ◽  
The Right ◽  
Production Industry

The industry in Queensland operates within a common geographical area and uses similar technologies with common hazards and risks. In terms of safety companies must be seen as one industry and not separate entities. As a result, collaboration on safety is a natural outcome, and in 2014 this led to the creation of the Queensland Natural Gas Exploration & Production Industry Safety Forum (known as Safer Together), an inclusive member-led organisation of a range of operating and contract partner companies. Initial emphasis was on the set-up/organisation and getting early engagement. With more than 80 companies signed up as members in the first 12 months, Safer Together made a strong start. The emphasis has now switched to delivery, and with all member companies feeling the strain of the industry downturn, working together has never been so crucial to ensure that safety is never compromised. This extended abstract presents a case study of what Safer Together is learning about the fundamental prerequisites required to ensure long-term sustainability and the success of the forum. Challenges discussed include: maintaining and increasing membership in tough times; ensuring senior leaders continue to be actively engaged, regardless of other business pressures; ensuring simple solutions don’t become too difficult to implement when rolled out to many different companies; avoiding initiative overload; and, demonstrating tangible value to member companies. This is not an easy journey, and more challenges lie ahead. But the enormous safety benefits make it the right thing to do as an industry.

Teaching the right stuff

2020 ◽  
Vol 102 (3) ◽  
pp. 23-27
Author(s):  
William J. Bennett
Keyword(s):  
Content Knowledge ◽  
Background Knowledge ◽  
Policy Makers ◽  
Education Leaders ◽  
Working Together ◽  
The Right

In this excerpt from How to educate an American: The conservative vision for tomorrow’s schools, William J. Bennett argues that instilling knowledge, not just skills, is an important element of good schooling. In fact, developing certain skills actually requires a considerable amount of background knowledge. He offers examples of states that have made content knowledge an important part of their curricula and urges education leaders and policy makers to make a long-term commitment to working together on such efforts in their own states.

Helping and Getting Help—Essential Skills for Effective Group Problem Solving

1994 ◽  
Vol 41 (9) ◽  
pp. 521-525 ◽  
Author(s):  
Sydney Farivar ◽  
Noreen M. Webb
Keyword(s):  
Problem Solving ◽  
Seventh Grade ◽  
Group Problem ◽  
Group Problem Solving ◽  
Grade Teacher ◽  
Working Together ◽  
Essential Skills ◽  
Effective Group ◽  
The Right

Seventh grade teacher: “My students have been working together in groups for a while now. They're getting along fine. But I'm finding that a lot of them still don't understand the work. I tell them to ‘work together’ and that it is all right to help each other. Sometimes I worry that they are only giving each other the answers. How can I get them to focus on problem solving and not just putring down the right answer?”

Scaling Roughness Effects on Pressure Loss and Heat Transfer of Additively Manufactured Channels

2016 ◽  
Author(s):  
Curtis K. Stimpson ◽  
Jacob C. Snyder ◽  
Karen A. Thole ◽  
Dominic Mongillo
Keyword(s):  
Heat Transfer ◽  
Metal Powder ◽  
Pressure Loss ◽  
Complex Flow ◽  
Roughness Effects ◽  
Flow Paths ◽  
Flow And Heat Transfer ◽  
Flow Through ◽  
High Temperature Components ◽  
Small Channels

Additive manufacturing (AM) with metal powder has made possible the fabrication of gas turbine components with small and complex flow paths that cannot be achieved with any other manufacturing technology presently available. The increased design space of AM allows turbine designers to develop advanced cooling schemes in high temperature components to increase cooling efficiency. Inherent in AM with metals is the large surface roughness that cannot be removed from small internal geometries. Such roughness has been shown in previous studies to significantly augment pressure loss and heat transfer of small channels. However, the roughness on these channels or other surfaces made from AM with metal powder has not been thoroughly characterized for scaling pressure loss and heat transfer data. This study examines the roughness of the surfaces of channels of various hydraulic length scales made with direct metal laser sintering (DMLS). Statistical roughness parameters are presented along with other parameters that others have found to correlate with flow and heat transfer. The pressure loss and heat transfer previously reported for the DMLS channels studied in this work are compared to the physical roughness measurements. Results show that the relative arithmetic mean roughness correlates well with the relative equivalent sand grain roughness. A correlation is presented to predict the Nusselt number of flow through AM channels which gives better predictions of heat transfer than correlations currently available.

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