CN110513091A - A kind of long horizontal sections multiple spot steam injection measuring device for heavy crude heat extraction experiment - Google Patents

A kind of long horizontal sections multiple spot steam injection measuring device for heavy crude heat extraction experiment Download PDF

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Publication number
CN110513091A
CN110513091A CN201910847371.6A CN201910847371A CN110513091A CN 110513091 A CN110513091 A CN 110513091A CN 201910847371 A CN201910847371 A CN 201910847371A CN 110513091 A CN110513091 A CN 110513091A
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China
Prior art keywords
die body
temperature
steam injection
connect
control
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CN201910847371.6A
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CN110513091B (en
Inventor
郑伟
谭先红
朱国金
程林松
李南
王泰超
李娜
孙依依
杨李杰
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China National Offshore Oil Corp CNOOC
CNOOC Research Institute Co Ltd
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China National Offshore Oil Corp CNOOC
CNOOC Research Institute Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/16Enhanced recovery methods for obtaining hydrocarbons
    • E21B43/24Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
    • E21B43/2406Steam assisted gravity drainage [SAGD]
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B49/00Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells

Abstract

The present invention relates to a kind of long horizontal sections multiple spot steam injection measuring devices for heavy crude heat extraction experiment, it includes die body, multiple steam injection ports are provided on die body, for simulating in test in-situ horizontal well multiple spot steam injection, and 105 temperature and pressure-measuring-point are provided in die body, it is distributed in reservoir different in die body;Die body bottom is provided with auxiliary rotary system, by the inclination of auxiliary rotary system adjustment die body and then the size variation at simulation reservoir inclination angle;Injected system is connect with each steam injection port of die body side;Grease collection is connect with metering system with the die body other side, and for collecting and measuring the mixture of oil and water that displacement goes out, obtained metric results are for calculating manufacturing parameter;Acquisition and control system is connect with die body, for the temperature and pressure value inside real-time monitoring and record reservoir, and carries out integration processing.The present invention can provide accurate steam injection measurement, improve the quality of experiment.

Description

A kind of long horizontal sections multiple spot steam injection measuring device for heavy crude heat extraction experiment
Technical field
The present invention relates to a kind of petroleum-type resource steam injection measuring device, especially with regard to a kind of for heavy crude heat extraction experiment Long horizontal sections multiple spot steam injection measuring device.
Background technique
The experiment of heavy crude heat extraction class is always to study the effective means of thermal recovery mode development mecha-nism and development effectiveness.With steam For in the thermal recovery mode of main injected media, for example, steam drive, steam soak, combustion in situ etc., steam assisted gravity drainage skill Art (SAGD) at home and abroad has been widely used and achieves good development effectiveness, but there is also some mechanism understanding Unclear problem.Heavy crude heat extraction experiment in relation to SAGD is that research vapor chamber is developed and extended, formation condition sensitivity analysis Effective means pushes designed by each colleges and universities, research institution all the time.
SAGD technology is mainly carried out injection thermal medium by horizontal well and produces crude oil, may relate in recovery process To different oil reservoirs, the difference in terms of different reservoir characteristics is more obvious, is influenced by oil reservoir is heterogeneous, horizontal well is repeatedly being infused After vapour, there is the situation of development degree unevenness;In addition, single-point steam injection position is generally only arranged in conventional horizontal well, generally proximate to water Horizontal well heel end, it is contemplated that the influence of pit shaft frictional resistance, linear loss, along steam flow direction, the heat decline of steam is obvious, Horizontal well difference section easily occurs employing uneven phenomenon.In view of the above-mentioned problems, gradually beginning trying multiple spot steam injection at the scene Mode, it is intended to improve steam injection efficiency, therefore in relation to the thermal recovery of multiple spot steam injection experiment for studying the research of the relevant technologies and answering With most important.
Existing thermal recovery experiment often has the following problems in being directed to above scheme: first is that existing model level well steam injection Often there was only single steam injection point, is unable to satisfy experiment demand, there are the experimental provisions of multiple spot steam injection to have to steam injection amount Effect control and metering.Second is that experimentation needs to pay close attention to the value with record cast internal temperature point, and then observes and study The development spread scenarios of vapor chamber, there are accuracy problems with accurate calculating for the real-time record of temperature spot for existing apparatus.Three It is that existing apparatus mostly uses external heating method, there are climate control issues.
Summary of the invention
In view of the above-mentioned problems, the object of the present invention is to provide a kind of long horizontal sections multiple spot steam injections for heavy crude heat extraction experiment Measuring device, uniformly by effect, steam injection measurement is accurate for multiple spot steam injection.
To achieve the above object, the present invention takes following technical scheme: a kind of long horizontal sections for heavy crude heat extraction experiment Multiple spot steam injection measuring device comprising die body, auxiliary rotary system, injected system, acquisition and control system and oil Water is collected and metering system;Multiple steam injection ports are provided on the die body, for simulating in test in-situ horizontal well Multiple spot steam injection, and 105 temperature and pressure-measuring-point are provided in the die body, it is distributed in the die body different Reservoir;The die body bottom is provided with the auxiliary rotary system, adjusts the model by the auxiliary rotary system The inclination of main body and then the size variation for simulating reservoir inclination angle;Each note of the injected system and the die body side The connection of vapour port imitates pressurization steam injection process of the Oil Field to steam injection well for injecting thermal medium into the die body; The grease collection is connect with metering system with the die body other side, for collecting and measuring the oil and water that displacement goes out Mixture, obtained metric results are for calculating manufacturing parameter;The acquisition and control system and the die body connect It connects, for the temperature value and pressure value inside real-time monitoring and record reservoir, and carries out integration processing.
Further, the die body is made of model upper cover, mold cavity and model lower cover, is located at the die body Inside it is provided with internal heating system;The internal heating system includes semi-open type heating mantle, semi-open type muff, temperature controller Table and control circuit;Be provided with the semi-open type muff outside the semi-open type heating mantle, and the semi-open type heating mantle with The control circuit connection, the control circuit are connect with the acquisition and control system;It is kept the temperature positioned at the semi-open type Set is external to be provided with the temperature control instrument, and collected temperature data is transmitted to the control by the temperature control instrument Circuit processed is controlled the heating temperature of the semi-open type heating mantle by the control circuit according to the temperature data received.
Further, the inner wall of the mold cavity is feather plucking processing.
Further, the mold cavity inner wall is provided with thermal insulation layer.
Further, the thermal insulation layer is made of high-strength epoxy resin material.
Further, two long horizontal well simulator is set in the middle part of the die body, for thermal medium in thermal recovery experiment Injection and saturated oils extraction;Different grain size sand mold is chosen according to stratum experiment parameter and carries out corresponding volume calculating, it will Uniformly mixed sand compacting filling is into the die body.
Further, the auxiliary rotary system uses turnover bracket, which is provided with Moving caster;It is described Turnover bracket surface is handled using plastic-spraying, can 180 degree rotation.
Further, the injected system includes injection pump and piston container;The outlet end of the injection pump and the piston The arrival end of container connects, and the outlet end of the piston container is connect with the die body;It is injection stream by the injection pump Body provides power, and the piston container temporarily stores different displacement heat Jie before the injection die body as intermediate receptacle Matter.
Further, the acquisition and control system includes pressure sensor, temperature sensor, temperature acquisition card, temperature Spend acquisition control case and data processing terminal;The top of the die body is arranged in the pressure sensor, by what is monitored Pressure data is transmitted to the data processing terminal;The temperature sensor and temperature acquisition card are all disposed within the die body In interior variant reservoir, the temperature acquisition card is used to acquire the temperature data that the temperature sensor detects, and described Temperature acquisition card is connect with the temperature acquisition control cabinet, is carried out by the temperature acquisition control cabinet to the temperature acquisition card real When acquisition control, the temperature data monitored is transmitted to the data through the temperature acquisition control cabinet by the temperature acquisition card Processing terminal.
Further, the temperature acquisition control cabinet includes section bar support, be provided on the section bar support electric protective device, Contactor and solid-state relay, for monitoring the real time temperature for recording temperature point in the die body in real time.
The invention adopts the above technical scheme, which has the following advantages: the present invention can be used for carrying out SAGD exploitation The physical analogys such as the distribution of vapor chamber and temperature and the influence every interlayer to exploitation in the process, multiple spot steam injection by effect more evenly, And accurate steam injection measurement is provided, the quality of experiment is improved.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention.
Specific embodiment
The present invention is described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1, the present invention provides a kind of long horizontal sections multiple spot steam injection measuring device for heavy crude heat extraction experiment, It is collected and metering system 8 including die body 2, auxiliary rotary system 1, injected system, acquisition and control system and grease.
Multiple steam injection ports are provided on die body 2, in test simulation in-situ horizontal well multiple spot steam injection, and It is provided with 105 temperature and pressure-measuring-point in die body 2, is distributed in reservoir different in die body 2;2 bottom of die body Portion is provided with auxiliary rotary system 1, adjusts the inclination of die body 2 by auxiliary rotary system 1 and then simulates the big of reservoir inclination angle Small variation.Injected system is connect with each steam injection port of 2 side of die body, for injecting the heat such as steam into die body 2 Medium imitates pressurization steam injection process of the Oil Field to steam injection well;Grease is collected to be connected with metering system 8 and 2 other side of die body It connects, for collecting and measuring the mixture of oil and water that displacement goes out, obtained metric results can be used for calculating the production such as recovery ratio Parameter.Acquisition and control system is connect with die body 2, for the temperature value and pressure inside real-time monitoring and record reservoir Force value, and carry out the long horizontal sections multiple spot steam injection measurement that heavy crude heat extraction experiment is realized in integration processing.
In above-described embodiment, die body 2 is made of model upper cover, mold cavity and model lower cover, is located at die body 2 It is inside additionally provided with internal heating system, for simulating the reservoir conditions of heavy crude reservoir, provides the place of long horizontal well steam injection experiment.
Wherein, internal heating system includes semi-open type heating mantle, semi-open type muff, temperature control instrument and control electricity Road.Semi-open type muff is provided with outside semi-open type heating mantle, and semi-open type heating mantle connects to the control circuit, control circuit with Acquisition and control system connection;It is provided with temperature control instrument outside semi-open type muff, by temperature control instrument Collected temperature data is transmitted to control circuit, by control circuit according to the temperature data control semi-open type heating received The heating temperature of set can complete heat effect and temperature automatically controlled effect inside model.
Preferably, 2 pressure resistance 5MPa of die body, wherein the inner wall of mold cavity is feather plucking processing, prevents wall stream.
Preferably, the mold cavity inner wall of die body 2 is provided with thermal insulation layer, which uses high-strength epoxy resin Material is made, and has thermal insulation function.
Preferably, die body 2 is used to simulate oil reservoir reservoir conditions, and two long horizontal wells are arranged in the middle part of die body 2 Simulator, for the injection of thermal medium and the extraction of saturated oils in thermal recovery experiment.According to stratum experiment parameter (porosity, infiltration Saturating rate etc.) it chooses different grain size sand mold and carries out corresponding volume calculating, by uniformly mixed sand compacting filling to model master In body 2.In the present embodiment, using sandpack column.
In the various embodiments described above, auxiliary rotary system 1 uses turnover bracket, which is provided with mobile foot Wheel, turnover bracket surface are handled using plastic-spraying, can be rotated with 180 degree, for simulating the displacement test under Different Strata inclination angle.
In the various embodiments described above, injected system includes injection pump 6 and piston container 7.The outlet end of injection pump 6 and piston hold The arrival end of device 7 connects, and the outlet end of piston container 7 is connect with die body 2.By injection pump 6 for injection thermal medium provide it is dynamic Power controls injection flow velocity according to requirement of experiment, adjusts injection pressure, and then meet injection condition;Piston container 7 holds as intermediate Device temporarily stores the different displacement thermal mediums before injection model main body 2, such as water, gas, chemical agent.
In the various embodiments described above, acquisition and control system includes pressure sensor 3, temperature sensor, temperature acquisition Card, temperature acquisition control cabinet 4 and data processing terminal 5.The top of die body 2 is arranged in pressure sensor 3, by what is monitored Pressure data is transmitted to data processing terminal 5;Temperature sensor and temperature acquisition card are all disposed within the different reservoir of die body 2 Interior, temperature acquisition card is used for the temperature data that temperature collection sensor detects, and temperature acquisition card and temperature acquisition control cabinet 4 Connection carries out real-time acquisition control, the temperature number that temperature acquisition card will monitor to temperature acquisition card by temperature acquisition control cabinet 4 Data processing terminal 5 is transmitted to according to through temperature acquisition control cabinet 4.Wherein, the temperature control instrument in temperature acquisition control cabinet 4 is by temperature-sensitive Element obtains detection signal, and compared with setting signal, and obtained comparison signal is adjusted by PID, is exported and is controlled by temperature control instrument Signal processed, to control solid-state relay conducting and the off state in temperature acquisition control cabinet 4, makes to heat to solid-state relay Device work, reaches temperature automatically controlled purpose.In the present embodiment, pressure sensor 3 is preferably five.
Preferably, temperature sensor use inlet temperature sensor, power supply 4-20mA, sensor diameter 3mm, Length is 200mm, connects wire length 2500mm.Quantity is set as 140.
Preferably, temperature acquisition control cabinet 4 includes section bar support, is provided with electric protective device, contactor on section bar support And solid-state relay, for monitoring the real time temperature of temperature point in record cast main body 2 in real time.
In conclusion the present invention is for Study on Productivity, the exploitation every interlayer in SAGD development process in heavy crude heat extraction experiment The physical analogy of influence provides accurate steam injection measurement, improves the quality of experiment.
The various embodiments described above are merely to illustrate the present invention, and structure and size, setting position and the shape of each component are all can be with It is varied, based on the technical solution of the present invention, the improvement and wait that all principles according to the present invention carry out individual part With transformation, should not exclude except protection scope of the present invention.

Claims (10)

1. it is a kind of for heavy crude heat extraction experiment long horizontal sections multiple spot steam injection measuring device, it is characterised in that: including die body, Assist rotary system, injected system, acquisition and control system and grease collection and metering system;
Multiple steam injection ports are provided on the die body, in test simulation in-situ horizontal well multiple spot steam injection, and It is provided with 105 temperature and pressure-measuring-point in the die body, is distributed in reservoir different in the die body;The mould Type bottom part body is provided with the auxiliary rotary system, adjusts the inclination of the die body in turn by the auxiliary rotary system Simulate the size variation at reservoir inclination angle;The injected system is connect with each steam injection port of the die body side, is used Pressurization steam injection process of the Oil Field to steam injection well is imitated in injecting thermal medium into the die body;The grease collect with Metering system is connect with the die body other side, for collecting and measuring the mixture of oil and water that displacement goes out, is obtained Metric results are for calculating manufacturing parameter;The acquisition and control system is connect with the die body, for supervising in real time It surveys and records the temperature value and pressure value inside reservoir, and carry out integration processing.
2. device as described in claim 1, it is characterised in that: the die body is by under model upper cover, mold cavity and model Lid is constituted, and internal heating system is provided in the die body;The internal heating system include semi-open type heating mantle, Semi-open type muff, temperature control instrument and control circuit;The semi-open type heat preservation is provided with outside the semi-open type heating mantle Set, and the semi-open type heating mantle is connect with the control circuit, the control circuit and the acquisition and control system Connection;It is provided with the temperature control instrument outside the semi-open type muff, will be acquired by the temperature control instrument To temperature data be transmitted to the control circuit, by the control circuit according to receive temperature data control it is described half-open The heating temperature of formula heating mantle.
3. device as claimed in claim 2, it is characterised in that: the inner wall of the mold cavity is feather plucking processing.
4. device as claimed in claim 2, it is characterised in that: the mold cavity inner wall is provided with thermal insulation layer.
5. device as claimed in claim 4, it is characterised in that: the thermal insulation layer is made of high-strength epoxy resin material.
6. such as any one of claim 2 to 5 described device, it is characterised in that: two long levels are arranged in the middle part of the die body Well simulator, for the injection of thermal medium and the extraction of saturated oils in thermal recovery experiment;It is chosen according to stratum experiment parameter different Granularity sand mold simultaneously carries out corresponding volume calculating, by uniformly mixed sand compacting filling into the die body.
7. device as described in claim 1, it is characterised in that: the auxiliary rotary system uses turnover bracket, the turnover bracket Bottom is provided with Moving caster;The turnover bracket surface is handled using plastic-spraying, can 180 degree rotation.
8. device as described in claim 1, it is characterised in that: the injected system includes injection pump and piston container;The note The outlet end for entering pump is connect with the arrival end of the piston container, and the outlet end of the piston container and the die body connect It connects;Power is provided for injection fluid by the injection pump, the piston container temporarily stores the injection mould as intermediate receptacle Different displacement thermal mediums before type main body.
9. device as described in claim 1, it is characterised in that: the acquisition and control system includes pressure sensor, temperature Spend sensor, temperature acquisition card, temperature acquisition control cabinet and data processing terminal;The pressure sensor is arranged in the model The pressure data monitored is transmitted to the data processing terminal by the top of main body;The temperature sensor and temperature acquisition Card is all disposed in reservoir variant in the die body, and the temperature acquisition card is for acquiring the temperature sensor inspection The temperature data measured, and the temperature acquisition card is connect with the temperature acquisition control cabinet, by the temperature acquisition control cabinet Real-time acquisition control is carried out to the temperature acquisition card, the temperature acquisition card adopts the temperature data monitored through the temperature Collection control cabinet is transmitted to the data processing terminal.
10. device as described in claim 1, it is characterised in that: the temperature acquisition control cabinet includes section bar support, the profile It is provided with electric protective device, contactor and solid-state relay on bracket, records temperature in the die body for monitoring in real time The real time temperature of measuring point.
CN201910847371.6A 2019-09-09 2019-09-09 Long horizontal section multi-point steam injection measuring device for thickened oil thermal recovery experiment Active CN110513091B (en)

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CN110469301A (en) * 2019-09-09 2019-11-19 中国海洋石油集团有限公司 One kind adopting simulator for heavy crude heat extraction three-dimensional note under large-scale model
CN112412413A (en) * 2020-11-25 2021-02-26 中国石油天然气股份有限公司 Straight-horizontal combined fireflood mining simulation system and method

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CN112412413A (en) * 2020-11-25 2021-02-26 中国石油天然气股份有限公司 Straight-horizontal combined fireflood mining simulation system and method

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