Automated electrocardiogram (ECG) beat classification is an important component of heart monitoring systems used for raising emergency call during sudden cardiac disorder patients. An automatic ECG classifier proposed to exploit the bandwidth features that are exclusively extracted from analytic intrinsic mode functions (IMFs). The methodology employs artificial bee colony (ABC) algorithm‐based least‐squares support vector machines (LSSVM) classify types using radial basis function kernel....

Using the application of Large Language Models (LLMs) in healthcare settings, mainly focusing on addressing general illness inquiries through chatbot interfaces. Leveraging capabilities LLMs, explore their potential to provide accurate and contextually relevant responses users seeking information about common health concerns. LLM have capacity continuously learn improve from user interaction. Through benchmarking experiments, this paper evaluates accuracy (61%) LLM-based chatbots...

Summary Gravel packing is increasingly used in long horizontal wells and challenging environments. Key to executing the gravel-pack job successfully selecting an appropriate gravel-carrier fluid. Frictional pressure loss exhibited by gravel-packing fluids important consideration their selection. This paper discusses friction performance of commonly industry today, which include viscoelastic surfactant (VES) types fluids, xanthan, hydroxyethyl cellulose (HEC). In with a section or narrow...

Abstract The success of any gravel pack treatment implies effective coverage the screens. Shunt tubes are used in both open and cased hole completions to overcome some challenges present for conventional placement techniques by allowing slurry bypass premature bridges continue packing downstream. Shunted packs therefore viewed as most forgiving technique, which has generated a myth that use shunt "guarantees" successful pack. However, failures shunted being experienced, resulting wells...

Abstract Openhole gravel packing (OHGP) is emerging as one of the primary completion techniques in horizontal wells with sanding tendencies. As experience level for this technique increases, OHGP applications are extending to more challenging environments, including longer intervals. Because many these jobs performed offshore and deep water environments where cost failure substantial, a thorough knowledge all aspects treatment design, execution, evaluation required. While OHGPs have been...

Abstract Sand production is a global problem which causes millions of dollars in equipment damage, deferred or lost and non-productive time (NPT) every year. Consequently, the accurate selection, modeling evaluation sand control techniques crucial for completion optimization as well risk minimization. This has traditionally been done using spreadsheets, industry rules thumb previous experience but, completions become more complex with longer intervals smaller fracture pressure windows, error...

Abstract Flow through annulus is frequent in drilling and work-over operations. Annular flow also utilized some fracturing treatments. In all these applications, Newtonian non-Newtonian fluids are widely used. Therefore the knowledge of annular performance becomes important for planning design well-bore hydraulics. Existing about behavior very limited due to their complex behaviour. A range correlations available literature both laminar turbulent regime. Selection appropriate correlation...

Abstract This paper presents the results of propped fracturing operations conducted in past 12 years Bach Ho (White Tiger) field offshore Vietnam. High temperatures (>275°F) and closure stress (>8,000 psi) combined with fact that has to be performed from a vessel make execution treatments operationally difficult challenging. More than 60 have been over 40 wells placing 3 million lbm proppant success rate greater 85%. The targeted were both injector producer wells. post...

Abstract Gravel packing is increasingly used in long horizontal wells and challenging environments. Key to successfully executing the gravel-pack job selecting an appropriate gravel carrier fluid. Friction pressure loss exhibited by fluids important consideration their selection. This paper discusses friction performance of commonly industry today which include Visco Elastic Surfactant (VES) type fluids, Xanthan Hydroxyethyl Cellulose (HEC). In with section or narrow margin between pore...

Abstract While the importance of pre-job design has always been appreciated, detailed post-job evaluation gravel pack execution data (both surface and downhole) is equally valuable as it provides a means to learn from past treatments, calibrate models, improve future designs. Traditionally, analysis limited high-level failure investigation but much wider range applications in confirmation success, better understanding downhole mechanisms validation simulation models. Downhole techniques can...

Abstract Coiled tubing is widely used in the petroleum industry to pump fluids well bore at high rates. The friction pressure losses occurring these rates are an issue of immense concern industry. Most this loss can be attributed section reeled on spool during treatment. dimension reel treatment governs degree curvature and turn corresponding drop. These apart from increasing cost due increased energy requirements also reduce life tubular used. Experimental simulation study has been...

Abstract Cased-hole gravel packing is commonly utilized to control sand production from oil and gas wells. The success of a cased-hole gravel-pack job depends on the ability effectively pack perforation tunnels, which act as conduits between reservoir wellbore for hydrocarbon production. This project presents system approach removal damage, effective placement, tunnels. It was found that surging perforations greatly increased tunnels improved connectivity reservoir. Guidelines formation...

Abstract Water packing is the most commonly used gravel technique for openhole horizontal completions. With this technique, of a well occurs through two sequential events, called a-wave and β-wave. Because carrier fluid diverted into must travel narrow annulus between screen base-pipe wash-pipe all way to toe, pressure builds up steadily during β-wave as proceeds from toe heel, due high friction pressures in that annulus. This rise may result exceeding fracturing reservoir, which turn causes...

Abstract Proper design, installation and evaluation of sand control completions is vital for ensuring integrity mitigating against production deferrals due to sanding events. This becoming increasingly important in the ACG Field, located offshore Azerbaijan, where wells require gravel pack with shunt tube technology narrow operating windows between reservoir fracture pressures. However, lack suitable commercially available software a standardized workflow, operations have been designed...

This reference is for an abstract only. A full paper was not submitted this conference. Abstract Description: Managing the safety of very large construction workforces (over 25,000) made up workers from diverse backgrounds and experience levels can be a major undertaking on any project. The Qatargas 2 Onshore Project involved building two mega LNG trains, each capable producing 7.8 million tons per annum, associated storage export facilities in Ras Laffan Industrial City State Qatar. At peak...

Case Study from 12 Successful Years of High Temperature Fracturing in Bach Ho Field Offshore Vietnam Samyak Jain; Jain Schlumberger Well Services Search for other works by this author on: This Site Google Scholar Andrew Richard Prestridge; Prestridge Paul dellorusso; dellorusso Nghi Chinh Nguyen; Nguyen Doung Danh Lam; Lam VietsovPetro Vuong Quoc Hung VSP Paper presented at the Production and Operations Symposium, Oklahoma City, Oklahoma, U.S.A., March 2007. Number: SPE-106712-MS...