CN209586344U - A kind of compact oil reservoir natural gas injection drive effect evaluating device - Google Patents

A kind of compact oil reservoir natural gas injection drive effect evaluating device Download PDF

Info

Publication number
CN209586344U
CN209586344U CN201921342964.9U CN201921342964U CN209586344U CN 209586344 U CN209586344 U CN 209586344U CN 201921342964 U CN201921342964 U CN 201921342964U CN 209586344 U CN209586344 U CN 209586344U
Authority
CN
China
Prior art keywords
rock core
pressure
clamper
natural gas
connect
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201921342964.9U
Other languages
Chinese (zh)
Inventor
崔轶男
汤勇
汪勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Southwest Petroleum University
Original Assignee
Southwest Petroleum University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Southwest Petroleum University filed Critical Southwest Petroleum University
Priority to CN201921342964.9U priority Critical patent/CN209586344U/en
Application granted granted Critical
Publication of CN209586344U publication Critical patent/CN209586344U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a kind of compact oil reservoir natural gas injections to drive effect evaluating device, it is related to oil-gas reservoir production technique field, the device includes displacement system, compression system and data collection system, multiple electrodes piece is provided in the clamper of its compression system, electrode slice is adjacent to rock core and connect with electric bridge instrument, each section of rock core of resistance can be measured, and then obtains the water saturation of each section of rock core, calculates the injection efficiency of rock core;Transmissometer is provided in its data collection system, it can fine migration amount during experiment with computing according to outlet end fluid turbidity, its influence to Flooding Efficiency is investigated, the present apparatus can also can evaluate simultaneously displacement efficiency, ultimate recovery, be suitable for compact oil reservoir natural gas injection and drive effect assessment experiment.

Description

A kind of compact oil reservoir natural gas injection drive effect evaluating device
Technical field
The utility model relates to oil-gas reservoir production technique fields, and in particular to a kind of compact oil reservoir natural gas injection drive effect room Inner evaluation device.
Background technique
Chemical flooding is common oilfield stimulation measure, and large quantities of high temperature, oil gas with high salt occurs in deep however as exploitation Hiding, and the moieties in chemical flooding cause its application range limited in high temperature, lower easy failure with high salt, gas drive is not then due to By high temperature, it is with high salt limitation and by favor, current gas drive includes nitrogen flooding, carbon dioxide flooding, natural gas drive etc., wherein naturally Gas drive since the advantages that its gas source is abundant, postorder processing is simple, receives significant attention, presently relevant research, test also into Row.
Displacement test device is the important device of Lab-evaluation Flooding Efficiency, has weight in researching natural gas displacement process Want meaning, it is well known that, during drilling operation, cementing particle unstable or easy to fall off in reservoir rock, in foeign element as flowed Body into people, pressure is exciting the effects of under, release, migration easily occurs, blocks pore throat or crack, influences displacement efficiency and final adopts Yield, it may be said that fine migration is one of an important factor for causing formation damage, however current driving device fails to reflect Fine migration situation when displacement in rock core.In addition, current driving device function is mostly relatively simple, evaluation parameter is few, needs Test of many times is wanted to obtain different experiment parameters respectively, this causes cumbersome and time-consuming.
Utility model content
In view of the above technical problem, effect is driven the purpose of this utility model is to provide a kind of compact oil reservoir natural gas injection and is commented Valence device, the present apparatus can monitor fraction of particle in the fluid of outlet end by outlet end transmissometer, transport to the particle in displacement process Shift-in has gone quantization, while the present apparatus can also evaluate displacement efficiency, ultimate recovery.
The utility model uses following technical scheme:
A kind of compact oil reservoir natural gas injection drive effect evaluating device, mainly includes three parts:
Displacement system, the system be able to achieve transformation difference under the conditions of constant speed and constant pressure displacement, the displacement system include respectively with The gas cylinder of multiple-way valve connection, constant pressure and flow displacement system, the gas cylinder has multiple;
Compression system, the compression system include clamper, confining pressure pump, electrode slice and back-pressure valve, are placed in the clamper Have a rock core, the confining pressure pump connect for rock core application confining pressure with clamper side, the electrode slice be located at clamper it is interior and It is close to rock core, the electrode slice has multiple and arranges along rock core axis, the outlet of the clamper entrance and multiple-way valve Connection, outlet are connect with back pressure valve inlet;
Data collection system, including pressure sensor, back pressure controller, flowmeter, transmissometer and electric bridge instrument, the flow Meter and transmissometer are successively connect with back pressure valve outlet, are respectively used to flow measurement and detection outlet end fluid turbidity, are evaluated displacement Solid phase particles migration quantity in the process;The electrode slice is connect with electric bridge instrument respectively, for the electricity between each section of real-time monitoring rock core Resistance, and then the water saturation of this section of rock core is obtained according to Archie formula, obtain injection efficiency of the natural gas at each section of rock core; The back pressure controller is connect with back-pressure valve, for controlling back pressure pressure;The pressure sensor has two and is respectively arranged at Clamper entry and exit, for measuring rock core import and export end pressure;
Preferably, which further includes computer, the pressure sensor, back pressure controller, flowmeter, transmissometer and electric bridge Instrument is electrically connected with computer respectively, convenient for data centralized recording, control.
Preferably, the electrode slice has 9.
Preferably, the Pressure Sensor Precision is 1/1000.
Compared with prior art, the utility model has the beneficial effects that:
(1) it is provided with the electrode slice for being close to rock core in core holding unit, the resistance between each section of rock core can be monitored in real time, And then the water saturation of this section of rock core is obtained according to Archie formula, obtain injection efficiency of the natural gas at each section of rock core.
(2) reasonable back pressure value is set, the high-precision pressure sensor at clamper entry and exit end can record pressure in real time Power, and then obtain natural gas drive pressure transmission efficiency for during.
(3) in displacement process, displacement pressure difference and water-rock effect can make the particle in rock pore structure occur Migration, and then pore throat is blocked, the percolation ability of rock is reduced, displacement efficiency and final recovery ratio are influenced.The present apparatus is by going out Fine migration amount in the transmissometer quantization displacement process at mouth end, to optimization displacement pressure difference and selects suitable displacement fluid with weight Want meaning.
Detailed description of the invention
Fig. 1 is the utility model overall structure diagram;
Fig. 2 is compression system partial view;
In figure: 1, gas cylinder;101, methane gas cylinder;102, nitrogen gas cylinder;2, constant pressure and flow displacement system;3, multiple valve Door;4, clamper;5, confining pressure pumps;6, electrode slice;7, back-pressure valve;8, rock core;9, pressure sensor;10, back pressure controller;11, Flowmeter;12, transmissometer;13, electric bridge instrument;14, computer
Specific embodiment
In the following, being described further in conjunction with attached drawing and specific embodiment to the utility model, it should be noted that Under the premise of not colliding, it can be formed in any combination between various embodiments described below or between each technical characteristic new Embodiment.
Embodiment:
A kind of compact oil reservoir natural gas injection drive effect evaluating device, mainly includes three parts:
Displacement system, the system be able to achieve transformation difference under the conditions of constant speed and constant pressure displacement, the displacement system include respectively with The gas cylinder 1 of the connection of multiple-way valve 3, constant pressure and flow displacement system 2, the gas cylinder 1 have 2, are respectively provided with the first of methane gas Alkane gas cylinder 101 and nitrogen gas cylinder 102 equipped with nitrogen;
Compression system, the compression system include clamper 4, confining pressure pump 5, electrode slice 6 and back-pressure valve 7, in the clamper 4 It is placed with rock core 8, the confining pressure pump 5 is connect for applying confining pressure to rock core 8 with 4 side of clamper, and the electrode slice 6 is located at folder In holder 4 and it is close to rock core 8, the electrode slice 6 there are 9 and arranges along 8 axis of rock core;4 entrance of clamper and multi-pass The outlet of road valve 3 connects, and outlet is connect with 7 entrance of back-pressure valve;
Data collection system, including pressure sensor 9, back pressure controller 10, flowmeter 11, transmissometer 12, electric bridge instrument 13 With computer 14, the flowmeter 11 and transmissometer 12 are successively exported with back-pressure valve 7 and are connected, and are respectively used to flow measurement and are detected Mouth end fluid turbidity, evaluates solid phase particles migration quantity in displacement process;The electrode slice 6 is connect with electric bridge instrument 13 respectively, is used for Resistance between each section of real-time monitoring rock core, and then the water saturation of this section of rock core is obtained according to Archie formula, obtain day Right injection efficiency of the gas at each section of rock core;The back pressure controller 10 is connect with back-pressure valve 7, for controlling back pressure pressure;It is described Pressure sensor 9 has two and is respectively arranged at 4 entry and exit of clamper, and for measuring rock core import and export end pressure, pressure is passed The precision of sensor 9 is 1/1000;The pressure sensor 9, back pressure controller 10, flowmeter 11, transmissometer 12 and electric bridge instrument 13 It is electrically connected respectively with computer 14.
Further, rock core 8 is the plunger rock core of φ 25mm × 50mm, and multiple-way valve 3 is four way valve and its every company Valve is provided on adapter tube line.
Further, valve and pressure gauge are connected on the pipeline that confining pressure pump 5 is connect with clamper.
The utility model is illustrated by way of example in text, but the utility model is not limited to above-mentioned specific implementation model Example, it will be apparent to those skilled in the art that can make various other corresponding according to the above description of the technical scheme and ideas Change and deformation, and all these change and deformation all should belong to the utility model claims protection scope it It is interior.

Claims (2)

1. effect evaluating device is driven in a kind of compact oil reservoir natural gas injection, which is characterized in that including displacement system, compression system sum number According to acquisition system:
The displacement system includes the gas cylinder connecting respectively with multiple-way valve, constant pressure and flow displacement system, and the gas cylinder has more It is a;
The compression system includes clamper, confining pressure pump, electrode slice and back-pressure valve, is placed with rock core in the clamper, described Confining pressure pump is connect with clamper side, and the electrode slice is located in clamper and is close to rock core, and the electrode slice has multiple and edge Rock core axis arrangement;The outlet of the clamper entrance and multiple-way valve connects, and outlet is connect with back pressure valve inlet;
The data collection system includes pressure sensor, back pressure controller, flowmeter, transmissometer and electric bridge instrument, the flow Meter and transmissometer are successively connect with back pressure valve outlet;The electrode slice is connect with electric bridge instrument respectively;The back pressure controller with return Pressure valve connection;The pressure sensor has two and is respectively arranged at clamper entry and exit, for measuring rock core import and export end Pressure.
2. effect evaluating device is driven in a kind of compact oil reservoir natural gas injection according to claim 1, which is characterized in that the device It further include computer, the pressure sensor, back pressure controller, flowmeter, transmissometer, electric bridge instrument electrically connect with computer respectively It connects.
CN201921342964.9U 2019-08-19 2019-08-19 A kind of compact oil reservoir natural gas injection drive effect evaluating device Expired - Fee Related CN209586344U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921342964.9U CN209586344U (en) 2019-08-19 2019-08-19 A kind of compact oil reservoir natural gas injection drive effect evaluating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921342964.9U CN209586344U (en) 2019-08-19 2019-08-19 A kind of compact oil reservoir natural gas injection drive effect evaluating device

Publications (1)

Publication Number Publication Date
CN209586344U true CN209586344U (en) 2019-11-05

Family

ID=68347740

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921342964.9U Expired - Fee Related CN209586344U (en) 2019-08-19 2019-08-19 A kind of compact oil reservoir natural gas injection drive effect evaluating device

Country Status (1)

Country Link
CN (1) CN209586344U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110671067A (en) * 2019-11-13 2020-01-10 吉林大学 Device for detecting dielectric property of ice core while drilling by matching with polar air drilling coring type rotary jet drill bit
CN111579463A (en) * 2020-06-29 2020-08-25 西南石油大学 Physical simulation device for storing carbon dioxide in water and gas reservoir and simulation method thereof
CN112031727A (en) * 2020-09-03 2020-12-04 中国石油大学(北京) Physical simulation device and method for fracturing horizontal well multi-medium throughput
CN114166999A (en) * 2021-12-01 2022-03-11 中国石油大学(北京) Oil reservoir type gas storage simulation experiment device and method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110671067A (en) * 2019-11-13 2020-01-10 吉林大学 Device for detecting dielectric property of ice core while drilling by matching with polar air drilling coring type rotary jet drill bit
CN110671067B (en) * 2019-11-13 2021-04-09 吉林大学 Device for detecting dielectric property of ice core while drilling by matching with polar air drilling coring type rotary jet drill bit
CN111579463A (en) * 2020-06-29 2020-08-25 西南石油大学 Physical simulation device for storing carbon dioxide in water and gas reservoir and simulation method thereof
CN112031727A (en) * 2020-09-03 2020-12-04 中国石油大学(北京) Physical simulation device and method for fracturing horizontal well multi-medium throughput
CN112031727B (en) * 2020-09-03 2022-03-04 中国石油大学(北京) Physical simulation device and method for fracturing horizontal well multi-medium throughput
CN114166999A (en) * 2021-12-01 2022-03-11 中国石油大学(北京) Oil reservoir type gas storage simulation experiment device and method

Similar Documents

Publication Publication Date Title
CN209586344U (en) A kind of compact oil reservoir natural gas injection drive effect evaluating device
CN1300576C (en) Analyzer for analyzing moisture in ground conductance
CN102411044A (en) Diagenesis simulation experimental apparatus and method
CN103048431A (en) Hydrofracture propping agent settlement and permeability testing device
CN104594885A (en) Measuring test device and method for seepage law of shale gas in microfractures
CN104564043B (en) A kind of diversion chamber of gas test compact reservoir seam net flow conductivity and its method of work
CN101864948A (en) Fracturing acidification working solution dynamic filtration loss instrument
CN202900246U (en) Array probe output profile logging instrument
CN201687470U (en) Dynamic filtration instrument of fracture acidizing working solution
CN203037641U (en) Device for settling hydrofracture supporting agent and testing permeability thereof
CN101470107A (en) Concrete body and test instrument and method for its permeation performance with other medium bonding surface
CN206095886U (en) Multi -functional high temperature high pressure rock core formation water damage experiment evaluation device
CN202850974U (en) Oil-gas-water three-phase output section logging instrument for low-yield liquid well
CN105136581A (en) Multifunctional fracturing simulation test system and method
CN204327083U (en) A kind of diversion chamber of gas test compact reservoir seam net flow conductivity
CN203321470U (en) CT scanning system based on top gas injection multi-angle displacement process
CN206681723U (en) A kind of microwave specific retention combination logging instrument for output section
CN204964305U (en) Multi -functional simulation tests system of splitting that sends
CN204575498U (en) A kind of perm-plug method device measuring flow in low permeability core
CN106869905A (en) A kind of microwave specific retention combination logging instrument for output section
CN104458108B (en) Method for measuring pressure drop of liquid metal pipe flow magnetic fluid under high-intensity magnetic field
CN2637728Y (en) Thick oil hot pump well high temperature multi parameter testing instrument
CN107387067A (en) Fine and close oil and gas reservoir pressure test process matching device and application method
CN204346882U (en) Metal erosion electrochemical experimental device in Flow Corrosion medium
CN108195716A (en) Brine strength on-line measuring device and detection method

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20191105

Termination date: 20200819