CN201190566Y

CN201190566Y - On-line water content analysis device fro high-temperature production liquid

Info

Publication number: CN201190566Y
Application number: CNU2007200169890U
Authority: CN
Inventors: 李刚; 顿宏峰; 杨德水; 晏金龙; 潘艳华; 周立峰; 孙立新; 陈华; 赵银珠
Original assignee: Liaohe Petroleum Exploration Bureau
Current assignee: Liaohe Petroleum Exploration Bureau
Priority date: 2007-12-17
Filing date: 2007-12-17
Publication date: 2009-02-04
Anticipated expiration: 2017-12-17

Abstract

The utility model relates to a device for analyzing water content of crude oil in steam process technology, in particular to a device for analyzing online water content of high-temperature output fluid in a measuring transfer station, which consists of a pipeline and a water containing instrument. The pipeline is an U-shaped crude oil mixing pipeline provided with an inlet and an outlet; the top of the U-shaped pipe is provided with a V-shaped water containing instrument; the pipe wall thereof is provided with a fountain room in which a r source is placed; the pipe wall is provided with a photon detector explosion stack, the inside of which is provided with a photon detector; the detector explosion stack is 150 mm away from the outlet; the sampling segment of the pipeline is provided with a sampling opening. The device can track the water content of the pipeline mixing crude oil automatically, has non-contact function through the instrument when in measurement, has no problem of scaling and wax deposition; the instrument is simple to operate and convenient to test, thereby improving the test precision of water content.

Description

The online bearing analysis device of high temperature output liquid

Technical field:

The utility model relates to crude oil analysis of moisture content device in the steam injection oil recovery; The online bearing analysis device of high temperature output liquid in particular for the metering group through-connection station.

Background technology:

Along with the Liaohe Oil Field exploration and development enters the middle and later periods, neat 40 carry out steam flooding after, water content in crude oil significantly increases, the different development phases moisture content changes greatly, the produced liquid in oil well temperature is above 100 ℃, the oil field more and more needs moisture content to measure accurately, automaticity is high, applied widely, technology is simply measured block station measurement of water ratio equipment, with optimization that realizes gathering and transportation technology and the reduction of investing, the raising of labor productivity and field production management level.

Because the former oil quality in Liaohe Oil Field is very unstable, and a large amount of viscous crude is arranged in the crude oil of being produced, and for ease of accumulating, must mix a certain proportion of thin oil, causes the density of crude oil not stablize, this just brings very big difficulty for containing water gaging.

The utility model content:

The purpose of this utility model is the online bearing analysis device of high temperature output liquid that provides in order to overcome above-mentioned shortcoming, this device can mix defeated crude oil to different densities and carry out tracking and testing, have noncontact, non-scaling, wax deposition characteristics, can also carry out moisture supervision in good time, improve the moisture chemical examination degree of reliability.

Technical scheme:

For finishing the task that above-mentioned purpose proposes, the utility model is made up of pipeline, water-containing machine; Described pipeline is that crude oil mixing petroleum pipeline is " U " font two vertical edge spacings at 600～800 millimeters, there is import on the left side, there is outlet on the right, and thermometer, pressure meter are arranged above, water-containing machine is housed in a side below " U " font top on less than 300 millimeters tube wall.This water-containing machine is one and presses close to the chamber, source is housed on the pipe wall position in v-shaped tube wall one side, this chamber, source is radioactivity r source, press close to a photon detector explosion stack is arranged above the pipe wall position at the tube wall opposite side, photon detector is arranged in the pipe, the explosion-proof line screw of crossing that an anti-explosion terminal box and top thereof are arranged at photon detector explosion stack right-hand member, the probe explosion stack is apart from 150 millimeters of outlets, and described pipeline sampling fragment position is equipped with sample tap.

The utility model working method is:

The online bearing analysis device of high temperature output liquid is used on metering block station external transport pipeline or the crude oil production pipeline, and after crude stream was crossed analyzer of water content, analyzer of water content can be measured crude oil water content automatically, and with data remote to janitor's room.

Analyzer of water content is carrying out measure monitor according to low energy γ photon with the interactional principle of absorption of measured medium during work.

When initial intensity is N ₀The lower energy photon bundle pass fluid in the pipeline after, its intensity is determined (as shown in Figure 1): N=N by following formula ₀Exp-[μ 1 α+μ 2 (1-α)] L

In the formula: μ 1, μ 2 are respectively the absorption coefficient of two kinds of components of detected fluid (profit) to photon, and it is relevant with the density of component thing, and α is the percent by volume of tested component, and L is the thickness of measured medium.Measure when moisture, pass the intensity N (photon counting in the unit interval) of oil-water mixture, can try to achieve the volumetric water content of crude oil according to following formula by probe on-line monitoring photon.

Can obtain through deriving from last examination: moisture α becomes linear dependence, that is: α=A*lnN+B with lnN (logarithm value of intensity counting)

Wherein A is the relevant amount of crude oil property with B, can obtain data by artificial contrast generally speaking, measure custom-designed software according to above principle with Cut of Oilfield, can obtain the required various data sheets of Field Force again automatically, therefore greatly facilitate work the metering of crude oil on-line monitoring.

Solved viscous crude and thin oil and mixed when failing, because of the inaccurate difficulty of oil density fluctuation metering, this device can be carried tracking to mixing output oil, be non-cpntact measurement during measurement, do not have device fouling, wax deposition situation, and instrumentation be simple, convenient test, it is sensitive to report to the police, and moisture supervision is accurate.

Description of drawings:

Fig. 1 is a mounting structure schematic diagram of the present utility model.

Fig. 2 is the utility model structural representation.

Among the figure 1, anti-explosion terminal box, 2, photon detector, 3, the explosion-proof line screw of crossing, 4, the photon detector explosion stack, 5, outlet, 6, import, 7, the chamber, source, 8, pipeline, 9, water-containing machine, 10, thermometer, 11, pressure gauge, 12, sample tap forms.

The specific embodiment:

The utility model is provided by following examples, is illustrated below in conjunction with accompanying drawing:

Pipeline 8 is crude oil mixing petroleum pipeline among Fig. 1, and this pipeline is " U " font, and wherein U font two vertical edge spacings are at 600～800 millimeters, there is import 6 on the left side, there is outlet 5 on the right side, and a side is equipped with water-containing machine 9, thermometer 10 and pressure gauge 11 on less than 300 millimeters tube wall below distance U font top.Described water-containing machine 9 (Fig. 2) is one and presses close to chamber, source 7 is housed on the pipe wall position in V-arrangement tube wall one side, this chamber, source is radioactivity r source, the tube wall opposite side is pressed close to a photon detector explosion stack 4 above the pipe wall position, photon detector 2 is housed in the pipe, photon detector explosion stack right-hand member has the explosion-proof line screw 3 of an anti-explosion terminal box 1 and top thereof, probe explosion stack 4 is apart from 150 millimeters of outlets during installation, the measurement line pipeline section is 300 millimeters, for taking a sample conveniently, the spy is equipped with a sample tap 12 in the probe tube fragment position.This device is connected measuring station on defeated pipeline or the crude oil production pipeline during work, and when crude stream was crossed the sampling pipeline section, water-containing machine can be measured crude oil water content automatically, and data are passed through the external computer teletransmission to janitor's room, can understand the crude oil volumetric water content.This device has been realized the monitoring to individual well production fluid amount, temperature, moisture data, again can be during greater than high alarm setting at moisture content, and alarm automatically.

Claims

1, the online bearing analysis device of high temperature output liquid; Form by pipeline (8) water-containing machine (9): it is characterized in that described pipeline (8) is crude oil mixing petroleum pipeline, be " U " font, its U font two vertical edge spacings are at 600～800 millimeters, there is import (6) on the left side, there is outlet (5) on the right, thermometer (10), pressure meter (11) are arranged above, and a side is equipped with water-containing machine (9) on less than 300 millimeters tube wall below distance U font top.

2, the online bearing analysis device of high temperature output liquid according to claim 1; It is characterized in that described water-containing machine (9) is one and presses close to be equipped with on the pipe wall position chamber, source (7) in V-arrangement tube wall one side, this chamber, source is radioactivity r source, press close to a photon detector explosion stack (4) is arranged above the pipe wall position at the tube wall opposite side, photon detector (2) is arranged in the pipe, photon detector explosion stack right-hand member has the explosion-proof line screw (3) of crossing of an anti-explosion terminal box (1) and top thereof, and probe explosion stack (4) is apart from (5) 150 millimeters of outlets; Described pipeline (8) probe tube fragment position is equipped with sample tap (12).