In the absence of well-developed calibrated geologic and simulation models, empirical approaches such as decline curve analysis (DCA) are normally used for production forecasting and reserve estimation. DCA is computationally more efficient compared to simulation models when the active well base exceeds hundreds of wells. However, the underlying assumption for conventional DCA is no change in well operation settings. Moreover, the common approach for production forecasting consists of manual outlier detection and removal, interpretation of missing measurements and data fitting using different models for each well. Therefore, the process of conventional DCA is subjective due to the lack of a standard workflow for preprocessing and data cleansing. The common practice for doing DCA has three main steps: 1. Finding the most representative period in the history of well, 2. Detecting the initial rate (start point) of forecast, 3. Selecting the type of decline and fitting the appropriate model to data points. The solutions to these problems could vary from engineer to engineer and it can be time consuming to analyze all wells manually. To address these issues, we developed a novel workflow based on stochastic methods for detecting various well interventions including change in artificial lift, pump changes and acid treatment, and for forecasting oil production rate more accurately in the presence of uncertainty. The novelty of the proposed ensemble-based approach is forecasting conditioned on various well interventions. Furthermore, the proposed unsupervised stochastic anomaly detection method will detect various well works (or events) in the case of missing records of time and type of events. In this paper, we designed two experiments to test the proposed workflow for oil production rate forecasting and evaluation of acid treatments.
Young Professionals (YP) of the SPE Los Angeles Basin Section hosted a panel luncheon during the SPE Western Regional Meeting last year at Anaheim Convention Center in Anaheim, California. On the program were two distinguished speakers, Behrooz Fattahi, 2010 SPE president, and Sam Sarem, 2010 Western North America Region (WNAR) director. More than 50 people attended the luncheon, which included college students and professionals working in the oil and gas industry. Most of the SPE LA officers and board members were in attendance, which showed their strong support for the YP program in the Los Angeles section. YP officers Candra Janova, Katy Canan, and Adi Varma provided topics, and the panelists discussed three main areas of interest: careers, knowledge transfer, and nontechnical skills.
For the month of July, the SPE young professionals (YPs) of the Aberdeen Section took charge of the ... Nine SPE sections have been awarded the 2019 SPE Presidential Award for Outstanding Section, the hig... SPE sections are located around the world and provide an operating framework for all major society a... After a promising start in 2018, the Beyond the Borders initiative is coming back with a larger and ... The Oxford Dictionary defines professionalism as "the competence or skill expected of a professional... Last year saw the first international program organized by SPE young professionals (YPs): Beyond the... SPE Online Education recently added a new web-based resource for technical content–Industry Intervie... Twenty two SPE sections have been awarded the 2018 SPE President’s Award for Section Excellence, the... In April, the SPE German Section Young Professionals (YPs) Lunch’n’Learn took place for the third ti... The oil industry must continually and dependably meet the ...
Lewis, Dennis Marathon Oil Co No Established Section-Rocky Mountain Region Rocky Mountain North America Lindahl, Carl Saudi Aramco Kingdom of Saudi Arabia Section Middle East and North Africa Li, Robert Shell Exploration & Production Co Gulf Coast Section Gulf Coast North America Liu, Chunlei Shell ...
Lee, Jonathan Ryder Scott Company, L.P. Gulf Coast Section Gulf Coast North America Lewis, Dennis Marathon Oil Co No Established Section-Rocky Mountain Region Rocky Mountain North America Lindahl, Carl Saudi Aramco Kingdom of Saudi Arabia Section Middle East and North Africa Li, Robert Shell Explora...
I cannot believe that a year has passed since I was inaugurated as SPE president in Dallas last September. My term has passed at the speed of light as I have traveled all over the world meeting our members and representing SPE at conferences and other events. Nine SPE sections have been awarded the SPE Presidential Award for Outstanding Section, the highest honor a section can receive. The awards will be presented to section officers at ATCE in Calgary, Alberta, Canada. SPE has two new offerings for the PRMS.
Designing a successful steamflooding project requires good candidate selection and an excellent understanding of the mechanisms by which recovery is enhanced. Screening criteria for identification of steamflood candidates have been published for many years. Table 1 shows the screening guides from five different sources. It is obvious from Table 1 that there is a finite envelope of properties that define successful candidates. However, within that envelope there is a relatively wide spread of values for the indicators.
In-situ combustion is the oldest thermal recovery technique. It has been used for more than nine decades with many economically successful projects. In-situ combustion is regarded as a high-risk process by many, primarily because of the many failures of early field tests. Most of those failures came from the application of a good process to the wrong reservoirs or the poorest prospects. The objective of this page is to describe the potential of in-situ combustion as an economically viable oil recovery technique for a variety of reservoirs.
The electrical submersible pump, typically called an ESP, is an efficient and reliable artificial-lift method for lifting moderate to high volumes of fluids from wellbores. These volumes range from a low of 150 B/D to as much as 150,000 B/D (24 to 24,600 m3/d). Variable-speed controllers can extend this range significantly, both on the high and low side. The ESP's main components include: The components are normally tubing hung from the wellhead with the pump on top and the motor attached below. There are special applications in which this configuration is inverted.