CN1043390A

CN1043390A - The measuring apparatus of two-phase three components

Info

Publication number: CN1043390A
Application number: CN 88108602
Authority: CN
Inventors: 侯华业; 杨振芳; 田树林
Original assignee: OIL PRODUCTION FACTORY NO 9 DAQING PETROLEUM ADMINISTRATION
Current assignee: OIL PRODUCTION FACTORY NO 9 DAQING PETROLEUM ADMINISTRATION
Priority date: 1988-12-12
Filing date: 1988-12-12
Publication date: 1990-06-27

Abstract

The invention discloses a kind of oil field shaft mouth gas that is used for, liquid (oil, water) measuring apparatus of two-phase three components, solve three components and under unseparated situation, can respectively have been measured the result, its major technique feature is: put buffering filter (1) on flow line, the reversal valve (2 that connects 2 parallel connections, 9), in two valves (2,9) establish oil return outlet (10) between, by in corrugated tube (3) connection discharge capacity ball (5) being arranged, outer safety check slowdown monitoring switch (4,12) measuring container (6), and measuring container places on the electronic container balance (7), and other establishes computing machine (8) and two reversal valves, detector switch, electronic container balance has circuit to connect; The corresponding minimizing of this plant investment, precision are higher, in the time of can getting automatically on demand, class, day or month metering.

Description

The measuring apparatus of two-phase three components

The present invention relates to a kind of measuring apparatus that is used for oil field shaft mouth gas-liquid (oil, water) two-phase three components.

On the at present domestic and international oil field method of measuring again through the separation vessel separation is earlier generally adopted in oily, gas metering, its used instrument is many, and occupation area of equipment is big, and measuring accuracy is low, and the insulation measure need be taked in northern oil field; Though wherein two-phase three component separation vessels can improve measuring accuracy relatively, implement bigger difficulty; To Chinese patent is CN86203384 " orifice plate-Venturi tube combined type two-phase flowmeter ", can not use the less place of straight length, when Media density changes, need compensate and correct, and increases the manufacture difficulty of computing machine.

The objective of the invention is to overcome above-mentioned shortcoming part of the prior art and provide.A kind of without gas, liquid separate, just gageable two-phase three component measuring apparatus, corresponding minimizing is invested in the corresponding raising of measuring accuracy, and simple to operate.

Purpose of the present invention can reach by following measure: put buffering filter and the reversal valve that is connected 2 parallel connections on oil field shaft mouth or collection commentaries on classics station flow line, in between two valves, establish oil return outlet and connection, two valves [2,9] respectively with by corrugated tube, in have the measuring container of discharge capacity ball and outer safety check slowdown monitoring switch to be communicated with, measuring container places the electronics container to deserve to be called; If computing machine has circuit to be connected with two reversal valves, two detector switches and electronic scale respectively.

Purpose of the present invention can also reach by following measure: reversal valve is the two-position three way normally open solenoid valve, and corrugated tube is the standard corrugated flexible hose, and measuring container is a U type volume pipe.

Below in conjunction with accompanying drawing will the invention will be further described:

Accompanying drawing is the measuring apparatus structural representation of two-phase three components;

Shown in figure, on well head or collection commentaries on classics station flow line, put a buffering filter [1], can adopt 45 mesh filter screen impact dampers, through commutator [2, the 9] connection of pipeline and 2 parallel connections, can adopt the two-position three way normally open solenoid valve; Connecting between two valves [2,9] has oil return outlet [10], and respectively connects a corrugated tube [3] respectively through pipeline, can adopt the standard corrugated flexible hose; Two corrugated tubes through pipeline and in discharge capacity ball [5] is arranged, the measuring container [6] of outer safety check slowdown monitoring switch [4,12] is communicated with, and can adopt standard U type volume pipe; And place measuring container [6] the electronics container to claim on [7]; Being provided with computing machine [8] claims to have on [7] circuit to connect with two reversal valves [2,9], two detector switches [4,12], electronics container respectively.

Promote discharge capacity ball [5] when a, the b of medium (oil, gas, water) on buffering filter [1], reversal valve [2] enters measuring container [6] to, corrugated tube [3], during switch [4], computing machine [8] sends instruction after testing, the electronics container claims work, reversal valve [9] is gone up C, and B is to logical, and A is to the pass; When discharge capacity ball [5] moved to detector switch [12], computing machine sent instruction, and the electronics container claims work, a on the reversal valve, C is to pass, b, c, A, B is to logical, and promote discharge capacity ball [5] counter motion from the medium that reversal valve [9] flows out this moment, and the interior medium of measuring container [6] is discharged from oil return outlet [10]; When the discharge capacity ball moves to detector switch [4], finish once circulation, the electronics container claims to realize secondary measurement, the medium after the metering is discharged from oil return outlet [10], and so forth, realizes continuous measurement; B(B on the reversal valve wherein) Xiang Changkai, a, C and A, c are with a kind of state, close to open alternately.

The volume and weight that claims to get medium through measuring container [6] and electronics container, to computing machine input water percentage X, pressure P, temperature T, pure oil density ρ, according to the Oil, Water, Gas relation equation, from computing machine, can draw respectively Oil, Water, Gas the time, class, day or month output.

The present invention has following advantage compared to existing technology: the medium of surveying (Oil, Water, Gas) be under unsegregated situation, to enter measuring container [6] continuously, draw the output separately of Oil, Water, Gas from computing machine, this kind plant area area is few, invest lower, measured result is subjected to the influence of media flow state little, and measuring accuracy is higher.

The employing equation is:

V _Gas+ V _Liquid=V _O; ρ _GasV _Gas+ ρ _LiquidV _Liquid=Gi

ρ wherein _Liquid=(ρ _Waterρ _Oil)/(ρ _Water+ * (ρ _Oil-ρ _Water));

V _OBe " U " type vessel volume; V _Gas, V _LiquidBe gas phase and the shared volume of liquid phase; As the sensor that adopts 1/3000, ρ _GasV _GasCan ignore and draw V _Gas=Vo-(Gi)/(ρ _Liquid) (G _iOil is weighed and is obtained), and be converted into volume under the status of criterion.

Claims

1, a kind of measuring apparatus that is used for oil field shaft mouth gas, liquid (oil, water) two-phase three components is characterized in that:

1) changes the reversal valve [2 of putting buffering filter [1] on the flow line of station, connecting 2 parallel connections at well head or collection, 9], in two valves [2,9] establish oil return outlet [10] and connection between, two valves [2,9] respectively with corrugated tube [3], in have the measuring container [6] of discharge capacity ball [5] and outer safety check slowdown monitoring switch [4,12] to be communicated with, and measuring container [6] places the electronics container to claim on [7];

2) establishing computing machine [8] has circuit to connect with two reversal valves [2,9], detector switch [4,12], electronic scale [7] respectively;

2, the measuring apparatus of two-phase three components as claimed in claim 1 is characterized in that: reversal valve [2,9] is the two-position three way normally open solenoid valve;

3, the measuring apparatus of two-phase three components as claimed in claim 1 is characterized in that: corrugated tube [3] is the standard corrugated flexible hose;

4, the measuring apparatus of two-phase three components as claimed in claim 1 is characterized in that: measuring container [6] is a U type volume pipe.