CN203796254U - Skid-mounted cone combination device for measuring volume flow of saturated steam - Google Patents

Abstract

The utility model relates to a skid-mounted cone combination device for measuring volume flow of saturated steam. The device comprises a flow regulating valve, a cone combination measuring module and a steam distributor. The cone combination measuring module comprises a temperature sensor, a pressure sensor, a large V-shaped cone flow sensor, a small V-shaped cone flow sensor, a differential pressure transmitter, a condensation tank, a data collection system, an algorithm controller and a computer terminal. The skid-mounted cone combination device is low in cost, safe, reliable, stable in operation, high in computing speed, and capable of achieving automatic distribution of the saturated steam and accurate measurement of the volume flow.

Description

A kind of skid-mounted type cone assembly is measured the device of saturated vapour volume flow

Technical field

The utility model relates to detection technique and the relevant device of heavy oil steam injection recovery, provides especially a kind of skid-mounted type cone assembly to measure the device of saturated vapour volume flow.

Background technology

Viscous crude resource is very abundant in the world, China at present in the distant basin of pine, 15 big-and-middle-sized oil basins such as Bohai gulf basin, accurate Ge Er basin and area found the heavy crude reservoir of One's name is legion, prediction China's heavy crude reservoir oil in place position is at the forefront in the world.But viscosity of thickened oil is high, oil reservoir filtrational resistance is large, poor fluidity, and exploitation difficulty is large.Due to the characteristic that the viscosity with temperature of crude oil raises and reduces, generally believe that in the world employing steam injection thermal recovery is a kind of comparatively desirable thickened oil recovery method.

The main cause of thick oil filling steam heat exploiting field piece production declining is the impact that is subject to reservoir physical property difference at present, causes each layer of suction vapour of oil well uneven, and producing degree of reservoir is poor, and well yield is low.The basic method addressing the above problem improves oil well steam entry profile exactly.And the distribution of heavy oil wells wet saturated steam, metering and self-checking device be take exactly and improved oil well steam entry profile as starting point, finally reach the object that improves producing degree of reservoir and oil well output.

The steam of steam injection heavy crude producing belongs to saturated vapour, be again vapour, water two phase flow. its feature is both to have contained water also to contain vapour, and along with the rising of temperature (corresponding pressure also raises, otherwise temperature cannot be gone up), the ratio that water accounts for is more and more, and the ratio system that vapour accounts for is fewer and feweri.We are called the shared ratio of vapour quality in the saturated vapour of certain mass the mass dryness fraction of steam, and mass dryness fraction is higher. and the ratio that vapour accounts for is larger.

In assignment of traffic. the saturated vapour that is about to house steward is assigned in two arms or manifold and goes, for water and vapour being gone out by former pro rate, be divided into two T-shape distributors that will adopt horizontal positioned by all means, " ball " type distributor that will adopt horizontal positioned of manifold, experimental results show that, even if use these distributors, arm and house steward's flow deviation generally can only remain on ± and 6%.

The object of the utility model patent is to overcome the shortcoming and defect that above-mentioned flow distributor exists, thereby provide a kind of skid-mounted type cone assembly to measure the device of saturated vapour volume flow, to guarantee that the steam flow of each branched pipe can Measurement accuracy, and can provide continuously the volume flow of each steam injection take-off line of automatic Detection & Controling, the parameters such as steam quality, can complete the tracking accumulative total to the steam injection amount of every steam injection take-off line simultaneously.

Utility model content

The purpose of this utility model is to provide the device that a kind of skid-mounted type cone assembly is measured saturated vapour volume flow.

A kind of skid-mounted type cone assembly is measured the device of saturated vapour volume flow, it is characterized in that: described cone assembly is measured saturated vapour volume flow device and specifically included following ingredient: flow control valve, cone assembly measurement module, steam distributor, wherein, cone assembly measurement module comprises: temperature pick up, pressure sensor, large V prick flow transducer, little V prick flow transducer, differential pressure transmitter, drainer, data collecting system, algorithmic controller and terminal.Its concrete order of connection is: saturated vapour Trunk Line is by being connected with cone assembly measurement module (2) after flow control valve (1), pass through afterwards steam distributor (3), after steam distributor (3), separate three by-pass lines, every by-pass line is all connected in entering gas injection well head by after being connected with cone assembly measurement module (2) after flow control valve (1).

Cone assembly measurement module concrete structure is: saturated vapour pipeline is connected with temperature pick up (4), then successively through too small V prick flow transducer (5), after large V prick flow transducer (6), is connected with hypomere saturated vapour pipeline; The temperature data line end of temperature pick up (4) and little V prick flow transducer (5), the pressure data line end of large V prick flow transducer (6) is connected in parallel in data collecting system (9); After little V prick flow transducer (5) impulse pipeline is connected with drainer (7), be connected with pressure sensor (8), be then connected in data collecting system (9); Data collecting system (9) is next connected with algorithmic controller (10), is finally connected in terminal (11).

Described a kind of skid-mounted type cone assembly is measured saturated vapour volume flow device, it is characterized in that: it is portable skid-mounted device that described cone assembly is measured saturated vapour volume flow device.

According to this new patent skid-mounted type cone as above assembly, measure saturated vapour volume flow device, can obtain very fast flow measurement result accurately, thereby the device for utilizing this kind of detection technique to form with Real Time Control Function provides its data basis.

Accompanying drawing explanation

Below in conjunction with drawings and the embodiments, the utility model is described in further detail:

Fig. 1 is the structure diagram that skid-mounted type cone assembly is measured saturated vapour volume flow device;

Fig. 2 is the structure diagram of cone assembly measurement module.

The specific embodiment

The present embodiment is specifically related to the device that a kind of skid-mounted type cone assembly is measured saturated vapour volume flow, it is characterized in that: described cone assembly is measured saturated vapour volume flow device and specifically included following ingredient: flow control valve, cone assembly measurement module, steam distributor, wherein, cone assembly measurement module comprises: temperature pick up, pressure sensor, large V prick flow transducer, little V prick flow transducer, differential pressure transmitter, drainer, data collecting system, algorithmic controller and terminal.Its concrete order of connection is: saturated vapour Trunk Line is by being connected with cone assembly measurement module (2) after flow control valve (1), pass through afterwards steam distributor (3), after steam distributor (3), separate three by-pass lines, every by-pass line is all connected in entering gas injection well head by after being connected with cone assembly measurement module (2) after flow control valve (1).

Cone assembly measurement module concrete structure is: saturated vapour pipeline is connected with temperature pick up (4), then successively through too small V prick flow transducer (5), after large V prick flow transducer (6), is connected with hypomere saturated vapour pipeline; The temperature data line end of temperature pick up (4) and little V prick flow transducer (5), the pressure data line end of large V prick flow transducer (6) is connected in parallel in data collecting system (9); After little V prick flow transducer (5) impulse pipeline is connected with drainer (7), be connected with pressure sensor (8), be then connected in data collecting system (9); Data collecting system (9) is next connected with algorithmic controller (10), is finally connected in terminal (11).

Described a kind of skid-mounted type cone assembly is measured saturated vapour volume flow device, it is characterized in that: it is portable skid-mounted device that described cone assembly is measured saturated vapour volume flow device.

The pipe line connection coupling of steam allocation metering device is well connected with well head steam pipe line.After device operation, rear V cone differential pressure Δ P1, the front V cone differential pressure Δ P2 that the measuring instrument that two V cone assemblys detect section produces, the standard signal of steam pressure P, vapor (steam) temperature T, these signals, after A/D modular converter, enter volume flow algorithmic controller with the form of digital quantity.In volume flow algorithmic controller, utilize two its volume flows of different structure V cone series connection to equate that direct calculating of principle solves saturated vapour volume flow.Meanwhile, also for calculating the parameters such as saturated vapour mass flow, the enthalpy of saturated vapour, density, mass dryness fraction; Volume flow algorithmic controller and touch-screen utilize RS232 communication interface to carry out exchanges data, by man-machine interface, realize saturated vapour Trunk Line and the online demonstration in real time of each take-off line volume flow.

The instrument that this device for carrying out said adopts is widely used Thermal Meter, and instrument low cost of manufacture, safe and reliable is stable.The computational methods computational process that adopts distinct, computational speed is fast, can measure the volume flow of saturated vapour Trunk Line and each take-off line.And can realize the technique of real-time control based on this technology and device, each take-off line steam quality is distributed automatically to fine adjustment; This technology can also need to be designed to different pipeline diameters and different skid-mounted type cone assembly according to different flows, meets on-the-spot actual measurement demand.

Claims (1)

1. a skid-mounted type is bored the device that assembly is measured saturated vapour volume flow, described cone assembly is measured saturated vapour volume flow device and is specifically included following ingredient: flow control valve (1), cone assembly measurement module (2), steam distributor (3), wherein, cone assembly measurement module (2) comprising: temperature pick up (4), little V prick flow transducer (5), large V prick flow transducer (6), drainer (7), pressure sensor (8), data collecting system (9), algorithmic controller (10) and terminal (11); It is characterized in that: saturated vapour Trunk Line is by being connected with cone assembly measurement module (2) after flow control valve (1), pass through afterwards steam distributor (3), after steam distributor (3), separate three by-pass lines, every by-pass line is all connected in entering gas injection well head by after being connected with cone assembly measurement module (2) after flow control valve (1);

Cone assembly measurement module concrete structure is: saturated vapour pipeline is connected with temperature pick up (4), then successively through too small V prick flow transducer (5), after large V prick flow transducer (6), is connected with hypomere saturated vapour pipeline; The temperature data line end of temperature pick up (4) and little V prick flow transducer (5), the pressure data line end of large V prick flow transducer (6) is connected in parallel in data collecting system (9); After little V prick flow transducer (5) impulse pipeline is connected with drainer (7), be connected with pressure sensor (8), be then connected in data collecting system (9); Data collecting system (9) is next connected with algorithmic controller (10), is finally connected in terminal (11).