امروز: سه شنبه 20 آذر 1397
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دانلود تحقیق Slug Catcher

دانلود تحقیق Slug Catcher دسته: صنایع نفت و گاز
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تعداد صفحات فایل: 20

Abstract A two phase flow pipeline is intended for transporting the gas and liquid phases simultaneously There are different modesunder which liquid can be produced from the pipelineThese include the continuous liquid flow production mode under normal steady flow conditions the intermittent or transient liquid production

قیمت فایل فقط 13,200 تومان

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Table of Contents

Chapter 1 Introduction. 6

Introduction. 7

Chapter 2  Slugs. 10

Slugs: 11

Chapter 3 Slug Catcher Tool 12

3.1 Slug Catcher. 13

        3.1.1 Performance ……………………………….13

3.1.2 How it works. 13

        3.1.3 Standard Features……………………………………..13

3.2 Purpose of Slug Catcher. 15

Chapter 4 Slug Catcher Design. 16

4.1 Slug Catcher Design. 17

4.2 General design aspects of multiple-pipe slug catcher. 17

4.3 Condition of liquid to be separated in slug catcher. 25

4.4 A new approach for sizing finger-type (multiple-pipe) slug catchers. 25

4.5 Case study: Slug catcher sizing in South Pars phases 22, 23 and 24. 38

4.6 Example of Slug Catcher model 41

        4.7  Computer Simulation……………………………..44

References: 46

Abstract

A   two  phase  flow  pipeline is intended  for  transporting  the gas  and  liquid  phases  simultaneously. There are different modesunder which liquid can be produced from the   pipeline.These include : the continuous  liquid  flow  production mode  under   normal  steady flow  conditions; the  intermittent or transient  liquid  production  mode occurring   when  flow  rates  are varied  and  the pigging or sphering  mode when liquid is displaced    within the  pipeline in a  relatively short time. These occasionally very large volumes of liquids encountered must be handled and stored as they emerge from the pipeline, preferably without any reduction in velocity, which would be reflected in the gas production. For this reason, a liquid receiving facility known as slug catcher is always   connected to a two phase pipeline

Chapter 1
Introduction

Introduction

A two-phase flow pipeline is intended for transporting the gas and liquid phasessimultaneously. There are different modes under which liquid can be produced from the pipeline. These include: the continuous liquid flow production mode under normal steady flow conditions; the intermittent or transient liquid production mode occurring when flow rates are varied (Severe Slugging in Figure1); and the pigging or sphering mode when liquid is displaced from the pipeline into the slug catcher in a relatively short time. These occasionally very large volumes of liquids encountered must be handled and stored as they emerge from the pipeline, preferably without any reduction in velocity, which would be reflected in the gas production. For this reason, a liquid-receiving facility known as a slug catcher is always connected to a two-phase pipeline. In the past ten years, the range of application of two-phase pipeline transportation has broadened considerably. Conditions under which slug catchers are required to operate have extended to higher flowrates involving also mist and droplet flow conditions for which more stringent separation requirements have become necessary and in some cases very large liquid quantities have to be handled. This paper has combined existing design approaches with results based on an additional investigation of liquid separation under high velocity conditions so that the revised design requirements can be met.

There are basically two types of slug catchers, the vessel and multiple-pipe types;multiple-pipe separators have been widely applied in facilities processing a gas condensate stream. For crude-oil stream, where foaming sometimes emerges as a major problem, a vessel type slug catcher is normally used. Such a slug-catching separator must be designed to process the incoming liquid slugs produced by normal pipeline slug flow and to perform an adequate initial separation of the gas and liquid phases. The geometry of the vessel type slug catcher could range from a simple “knock out drum” to a more sophisticated layout. Since the overall length of vessel type slug catchers is relatively short for a given volume this type is preferred in the case of limited plot sizes (e.g. offshore platforms). For larger liquid volumes accommodation (More than 100 m3) multiple-pipe slug catcher should be used.

قیمت فایل فقط 13,200 تومان

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