CN106501127B - Profile control gel evaluation of dynamic method and device - Google Patents
Profile control gel evaluation of dynamic method and device Download PDFInfo
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Abstract
The present invention provides a kind of profile control gel evaluation of dynamic method and devices, and wherein evaluating apparatus includes computer, peristaltic pump, pressure sensor, insulating box and several conical flasks；The computer connects the peristaltic pump, the calculating mechatronics pressure sensor by data control line；It is inserted with outlet tube and inlet tube simultaneously in an at least conical flask；The inlet tube is connected with inlet valve, peristaltic pump, pressure sensor and insulating box in turn far from described conical flask one end；The outlet tube is connected with outlet valve and insulating box in turn far from described conical flask one end；Assay flask is equipped in the insulating box, the assay flask bottom is connected to the inlet tube, is connected to outlet tube at the top of the assay flask.Profile control of the present invention gel evaluation of dynamic device can detect evaluation profile control gel dynamic colloid formation performance indicator --- gelation time and breakthrough pressure gradient；It is easily operated, it can be achieved that continuous 15 days without manual intervention from dynamic test.
Description
Technical field
The invention belongs to oil field development profile controls, transfer drive field, more particularly, to a kind of profile control gel evaluation of dynamic
Method and device.
Background technique
Cross-linked polymer gel (referred to as " gel ") is the maximum chemical agent system of dosage in Water in Water Shutoff in Oil Field profile control agent.It hands over
Linked polymer gel is formulated by water, polymer and crosslinking agent.Thick liquid is initially after preparation, certain temperature (40~
150 DEG C), certain time (1~7 day) post-crosslinking gelled.
It is mostly at present static gel-forming property to the performance evaluation of gel, i.e., gel is before conclusion of the business and during plastic in quiet
Only state.But when practical application, gel is in the state flowed in the earth formation always.Gel dynamic colloid formation performance evaluation is not marked
Quasi- method.
Existing method needs to carry out long back-up sand core barrel (5 meters of core length or more or even 30 meters) flow test, mainly deposits
In following deficiency:
(1) existing evaluation experimental device is huge, and pipeline, fill out sand tube are too long (5~30 meters), needs back-up sand volume and consumption
Gel sample volume it is all very big, often above 4000mL.And need all to dismantle device after the test, it cleans
Pipeline, core barrel, intermediate receptacle etc., test front and back prepares and the ending time is up to 2~4 days.
(2) flowing displacement pump is constant-flux pump.Constant-flux pump cannot direct pumpable gel, can only pump distillation water-driven among hold
Gel in device, dynamic evaluation are tested process and are up to 4 to 7 days, need to switch intermediate receptacle in the process again, it is difficult to realize continuous
12 hours or more from dynamic test, (4~12 hours) need Manual Switch intermediate receptacle at regular intervals.
Summary of the invention
In view of this, the present invention is directed to propose a kind of profile control test gels evaluation of dynamic method, existing to overcome
The defect of technology, for evaluating gel dynamic colloid formation process under formation condition.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of profile control test gels evaluation of dynamic method, comprising the following steps:
(1) prepare an assay flask, seal one end, reservoir sand is packed into assay flask, and be mixed into stratum sand
A certain amount of test gels, the other end of leakage test bottle；Assay flask one end is sequentially communicated pressure test equipment by pipeline
With the outlet of peristaltic pump, the other end is connected to the import of peristaltic pump by pipeline；
(2) start peristaltic pump, the discharge capacity of peristaltic pump constantly adjusted according to time T, every 20 minutes, changes a discharge capacity,
It acquires a pressure data and records, test period 7 to 15 days；Discharge capacity q when different time TtIt is calculated as follows:
Wherein:
qt: evaluation test starts T moment wriggling pumpage after timing, mL/min；
R: assay flask inside radius, cm；
q0: discharge capacity when live practical profile control construction, mL/min；
H: formation thickness when live practical profile control construction, cm；
φ: formation porosity when live practical profile control construction, no unit quantity
T: time after on-test timing, min；
(3) m- pressure curve is found out in circulating pressure data point according to test data analyzer when drawing, and is greater than for the first time just
Corresponding time T, as gelation time at 1.5 times of beginning circulating pressure；Find out the maximum value of circulating pressure, as breakthrough pressure；
It is again breakthrough pressure gradient divided by reservoir sand height filled out in assay flask with breakthrough pressure.
Peristaltic pump control, pressure data acquisition and discharge capacity q in step (2)tIt calculates, manual operation can be used, can also adopt
It computerizeds control operation；Artificial draw or computer drawing also can be used in when m- pressure curve drafting in step (3).
Preferably, circulating pressure is flat when initial cycle pressure is 20 and 40 minutes after on-test in the step (3)
Mean value；15 days whole pressure datas are both less than 1.5 times of initial cycle pressure in the step (3), then it is assumed that are tested to be measured solidifying
Glue dynamic is unable to plastic.
Preferably, in the step (1), guarantee that the assay flask equipped with reservoir sand and test gels is set up vertically, and outside it
Portion's temperature is adjustable；Guarantee that reservoir sand position is fixed in the step (1).By external temperature to value similar with formation temperature,
It is placed in assay flask under such environment, the test of simulated formation situation can be carried out.
Preferably, it is the assay flask that reservoir sand will be housed that the test gels in the step (1), which are mixed into the mode of reservoir sand,
Both ends sealing, using peristaltic pump, test gels is pumped into assay flask by pipeline from the bottom of assay flask, itself and reservoir sand are made
Mixing.Specifically, test gels being previously charged into a container, the assay flask other end is connected to container by the first pipeline,
Wriggling pump inlet is connected to container by the second pipeline, and the second pipeline protrudes into test gels；First pipeline and the second pipeline it
Between be equipped with third pipeline, and the first pipeline and the second pipeline are connected to third pipeline, the first pipeline, the second pipeline and third pipe
Valve is equipped on line, third pipeline is located between the valve and peristaltic pump of the first pipeline, can be in the case where peristaltic pump is opened
(5~10mL/min of wriggling pumpage), the opening and closing by adjusting each valve realize test gels be pumped into reservoir sand it is mixed with
And in pipeline air discharge (air efflux time 30~60 minutes)；This setting, which changes the container equipped with test gels into, to be equipped with
Entire evaluation method institute use device can be realized in conjunction with the positive starting and reverse phase starting of peristaltic pump in the container of distilled water
Cleaning.Positive starting peristaltic pump can realize that distilled water is pumped into, and cleans device, at this time 50~100mL/ of wriggling pumpage
Min, scavenging period 30~40 minutes；Reverse phase starts peristaltic pump and dallies 10~15 minutes, can distilled water in Head-space equipment.
Preferably, there is pre- emptying process between the step (1) and step (2), the air of each pipeline in step (1) is arranged
Out；The step (3) is equipped with equipment cleaning process afterwards and restarts to measure next test gels after equipment cleaning.
Evaluate basic principle:
Gel dynamic colloid formation process under formation condition can be evaluated in the present invention.Reservoir sand is being filled with peristaltic pump driving gel
Iterative cycles flow in assay flask, evaluate its gel-forming property by circulating pressure change.Pressure is circulated to significantly increase
50% or more time is gelation time, and largest loop pressure is gel breakthrough pressure.
In practice, different time flow velocity is different behind gel injection stratum, and rate started is high, then gradually decreases.The present invention
It computerizeds control the discharge capacity of peristaltic pump different time, records the pressure of different time.
It is a kind of for profile control test gels evaluation of dynamic as described above another object of the present invention is to propose
The device of method, cannot be continuously from dynamic test to solve the problem of that existing gel dynamic colloid formation benchmark test is complicated for operation.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
It is a kind of for the profile control as described above device of test gels evaluation of dynamic method, including it is computer, compacted
Dynamic pump, pressure sensor, insulating box and several conical flasks；
The computer is provided with data collecting card, data processing software and control system；The computer passes through data
Control line connects the peristaltic pump, the calculating mechatronics pressure sensor；
It is inserted with outlet tube and inlet tube simultaneously in an at least conical flask；The inlet tube is burnt far from the triangle
Bottle one end is connected with inlet valve, peristaltic pump, pressure sensor and insulating box in turn；The outlet tube is far from the conical flask one
End is connected with outlet valve and insulating box in turn；Tap line, the tap line position are equipped between the outlet tube and inlet tube
Between the inlet valve and peristaltic pump；The tap line, which is equipped with, is shorted valve；
Peristaltic pump is adjusted the speed using computer, speed adjustable range is 0~100mL/min, and wriggling pump discharge pressure is big
In 0.3MPa.Pressure sensor maximum range is 1.0MPa, precision 0.006MPa.It is for simulated formation temperature that insulating box, which is arranged,
Degree, test gels do not need to heat before entering insulating box by inlet tube.
Assay flask is equipped in the insulating box, the assay flask bottom is connected to the inlet tube, connects at the top of the assay flask
Pass-out liquid pipe.
Further, there are spacing perpendicular to the insulating box bottom, but with the insulating box bottom for the assay flask；Institute
Stating assay flask includes upper end cover, bottle body and lower cover；The upper end cover and lower cover are threadedly coupled the bottle body, and both
It is sealed between the bottle body using silicagel pad；The outlet tube and feed liquor are respectively communicated on the outside of the upper end cover and lower cover
Sieve is equipped on the inside of pipe, the upper end cover and lower cover；Two sieve is respectively positioned in the bottle body, and edge is and bottle body
Wall is close to；Reservoir sand is filled in bottle body between two sieve.
Further, in the threaded connection of the upper end cover, lower cover and bottle body, it is on the upper end cover and lower cover
Internal screw thread is external screw thread on the bottle body；The outlet tube pipeline section and feed liquor being respectively communicated on the outside of the upper end cover and lower cover
Pipe pipeline section is stainless steel material；The outlet tube pipeline section and inlet tube pipeline section one end are welded with the upper end cover and lower cover respectively
It connects, the outlet tube pipeline section and the inlet tube pipeline section other end penetrate the insulating box and be respectively communicated with the conical flask and pressure
Sensor.The internal diameter of outlet tube pipeline section and inlet tube pipeline section is between 3-6mm.Preferably, outlet tube pipeline section and inlet tube pipe
Section penetrates the center of upper end cover and the center of lower cover respectively.
Further, the outlet tube and inlet tube are all made of stainless steel tube or resistance to far from the pipeline section of described insulating box one end
Warm silicone tube；The bottle body is a stainless pipe；The sieve material is stainless steel, and the sieve mesh number is 50~400.When
Test temperature outlet tube and inlet tube at 95 DEG C or less far from the pipeline section of described insulating box one end are all made of heatproof silicone tube；When
Test temperature outlet tube and inlet tube at 95 DEG C or more far from the pipeline section of described insulating box one end are all made of stainless steel tube；Cross perseverance
The outer diameter 6mm stainless steel tube of one section of incubator wall；Purpose using setting sieve is to block reservoir sand, guarantees that it will not be moved；
Bottle body is the stainless pipe of 25.5 ± 5mm of internal diameter, high 25 ± 5mm.
Further, it is small to be inserted into distance of described conical flask one end end face away from the conical flask bottom for the inlet tube
Distance of described conical flask one end end face away from the conical flask bottom is inserted into the outlet tube；The inlet tube goes out liquid
Pipe, inlet valve, outlet valve, short circuit valve and each pipeline top connection position pressure resistance 1.0MPa or more, 150 DEG C of heatproof or more；It is described
Inlet valve, outlet valve, short circuit valve and each pipeline top connection portion are stainless steel material；30~200 DEG C of the calorstat temperature can
It adjusts.Insulating box temperature-controlled precision is ± 2 DEG C, and internal height is greater than 300mm；The outer diameter of inlet tube and outlet tube is 6mm；Import
Valve, outlet valve, short circuit valve and each pipeline top connection portion are stainless steel material, and interior latus rectum is in 3mm or more.Several conical flasks
Volume be 500mL, quantity is preferably 3, wherein 1 is served only for temporarily storing that test gels, in addition 2 shelf tests terminate
The distilled water of cleaning equipment afterwards.
Compared with the existing technology, a kind of profile control of the present invention test gels evaluation of dynamic method has following
Advantage:
A kind of profile control of the present invention test gels evaluation of dynamic method is being filled with peristaltic pump driving gel
Iterative cycles flow in the assay flask of reservoir sand, evaluate its gel-forming property by circulating pressure change；Circulate pressure
The time for significantly increasing 50% or more is gelation time, and largest loop pressure is gel breakthrough pressure.Of the present invention one
Kind profile control test gels evaluation of dynamic method, design is rationally, easy to operate, and it is dynamic to can be used for evaluating gel under formation condition
State plastic process.
It is of the present invention a kind of for the profile control as described above device of test gels evaluation of dynamic method, energy
Detection evaluation profile control, transfer drive gel dynamic colloid formation performance indicator --- gelation time and breakthrough pressure gradient；It is easily operated, it can
It realizes and is not necessarily within continuous 15 days manual intervention from dynamic test, and conventional method needs artificial participate in；Test front and back time is short, no
Foot 2 hours, and conventional method usually requires 1~2 day.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the simple structure schematic diagram of profile control gel evaluation of dynamic device described in the embodiment of the present invention 1.
Appended drawing reference:
1- computer；2- peristaltic pump；3- pressure sensor；4- insulating box；5- conical flask；6- outlet tube；7- inlet tube；
8- inlet valve；9- outlet valve；10- is shorted valve；11- assay flask；111- upper end cover；112- bottle body；113- lower cover；114- sieve
Net；12- reservoir sand；13- data control line；14- test gels.
Specific embodiment
Unless otherwise stated, term used herein all has the meaning that those skilled in the art routinely understand, in order to
It is easy to understand the present invention, some terms used herein have been subjected to following definitions.
All number marks, such as pH, temperature, time, concentration, including range, are all approximations.It is to be understood that although
Term " about " is all added before always not describing all number marks explicitly.While it will also be understood that, although always not clear
Narration, reagent described herein is only example, and equivalent is known in the art.
Below with reference to examples and drawings, the present invention will be described in detail.
Embodiment 1
As shown in Figure 1, a kind of profile control gel evaluation of dynamic device, including computer 1, peristaltic pump 2, pressure sensing
Device 3, insulating box 4 and several conical flasks 5；
The computer 1 is provided with data collecting card, data processing software and control system；The computer 1 passes through number
The peristaltic pump 2 is connected according to control line 13, the computer 1 is electrically connected pressure sensor 3；
It is inserted with outlet tube 6 and inlet tube 7 simultaneously in an at least conical flask 5；The inlet tube 7 is far from described three
Flask 5 one end in angle is connected with inlet valve 8, peristaltic pump 2, pressure sensor 3 and insulating box 4 in turn；The outlet tube 6 is far from described
5 one end of conical flask is connected with outlet valve 9 and insulating box 4 in turn；Tap line is equipped between the outlet tube 6 and inlet tube 7,
The tap line is between the inlet valve 8 and peristaltic pump 2；The tap line, which is equipped with, is shorted valve 10；
Assay flask 11 is equipped in the insulating box 4,11 bottom of assay flask is connected to the inlet tube 7, the assay flask
11 tops are connected to outlet tube 6.
There are spacing perpendicular to 4 bottom of insulating box, but with 4 bottom of insulating box for the assay flask 11；The examination
Testing bottle 11 includes upper end cover 111, bottle body 112 and lower cover 113；Described in the upper end cover 111 and lower cover 113 are threadedly coupled
Bottle body 112, and both sealed between the bottle body 112 using silicagel pad；113 outside of the upper end cover 111 and lower cover
It is respectively communicated with the outlet tube 6 and inlet tube 7, is equipped with sieve 114 on the inside of the upper end cover 111 and lower cover 113；Described two
Sieve 114 is respectively positioned in the bottle body 112, and edge is close to 112 wall of bottle body；Bottle body 112 between two sieve 114
Interior to be filled with reservoir sand 12, the reservoir sand particle diameter is 0.5~2mm；The peristaltic pump speed adjustable range is 0~100mL/
min。
In the threaded connection of the upper end cover 111, lower cover 113 and bottle body 112, the upper end cover 111 and lower cover 113
On be internal screw thread, on the bottle body 112 be external screw thread；What the upper end cover 111 and 113 outside of lower cover were respectively communicated with goes out
6 pipeline section of liquid pipe and 7 pipeline section of inlet tube are stainless steel material, and the internal diameter of 7 pipeline section of 6 pipeline section of outlet tube and inlet tube is
3mm；6 pipeline section of outlet tube and 7 pipeline section one end of inlet tube are welded with the upper end cover 111 and lower cover 113 respectively, it is described go out
6 pipeline section of liquid pipe and the 7 pipeline section other end of inlet tube penetrate the insulating box 4 and are respectively communicated with the conical flask 5 and pressure sensing
Device 3.
The outlet tube 6 and inlet tube 7 are all made of heatproof silicone tube far from the pipeline section of described 4 one end of insulating box；The bottle
Body 112 is a stainless pipe, and the round tube inside diameter is 25.4mm, height 30mm；114 material of sieve is stainless steel, institute
Stating sieve mesh number is 100.
The inlet tube 7 is inserted into the distance of the 5 one end end face of conical flask away from 5 bottom of conical flask less than described
Outlet tube 6 is inserted into the distance of the 5 one end end face of conical flask away from 5 bottom of conical flask；The inlet tube 7 and outlet tube
6 outer diameter is 6mm；The inlet tube 7, inlet valve 8, outlet valve 9, is shorted valve 10 and each pipeline top connection position at outlet tube 6
Equal pressure resistance 1.0MPa or more, 150 DEG C of heatproof or more；The inlet valve 8, outlet valve 9, short circuit valve 10 and each pipeline top connection portion are equal
For stainless steel material, and interior latus rectum is 3mm.
The quantity of several conical flasks 5 is 3；The volume of 3 conical flasks 5 is 500mL.
Described 30~200 DEG C of 4 temperature of insulating box adjustable, and temperature-controlled precision is ± 2 DEG C, and internal height is greater than 350mm.
Use above-mentioned evaluating apparatus to containing 0.4% polyacrylamide (molecular weight for 20,000,000, degree of hydrolysis 18%), 0.4%
The test gels 14 that chromic acetate is formed are evaluated, evaluation method are as follows: the following steps are included:
(1) 11 one end of assay flask is assembled, reservoir sand 12 is inserted, is put into sieve 114, silica gel sealing pad screws the other end；
Assay flask 11 is put into insulating box 4, keeps assay flask 11 vertical in insulating box 4；Connect inlet tube 7, outlet tube 6, peristaltic pump
2, pressure sensor 3, computer 1, inlet valve 8, outlet valve 9 and short circuit valve 10；
(2) prepare 14 200mL of test gels, be put into a conical flask 5, inlet tube 7 and 6 one end of outlet tube is equal
Be inserted into conical flask 5, protrude into 7 port of inlet tube in test gels 14,6 port of outlet tube and 14 upper surface of test gels there are
Spacing；
(3) inlet valve 8 and outlet valve 9 are opened, closes and is shorted valve 10, starts peristaltic pump 2, with 7mL/min discharge capacity be pumped into
Gel 14 is surveyed, outlet tube 6, which protrudes into 5 one end of conical flask, can first be discharged air, be then discharged out test gels 14；Continue 30 minutes
Afterwards, inlet valve 8 and outlet valve 9 are closed, opens and is shorted valve 10, open insulating box 4 and is set to test temperature.
(4) start computer 1, data processing software starts T between timing, constantly adjusts wriggling according to time T control system
2 discharge capacities are pumped, every 20 minutes, change a discharge capacity, data collecting card acquires a pressure data and saves, and test period 7 arrives
15 days；Discharge capacity q when different time TtIt is calculated as follows:
Wherein:
qt: evaluation test starts 2 discharge capacity of T moment peristaltic pump after timing, mL/min；
R: assay flask (11) inside radius, cm；
q0: discharge capacity when live practical profile control construction, mL/min；
H: formation thickness when live practical profile control construction, cm；
φ: formation porosity when live practical profile control construction, no unit quantity
T: time after on-test timing, min；
(5) m- pressure curve is found out in circulating pressure data point according to test data analyzer when drawing, and is greater than for the first time just
Corresponding time T, as gelation time at 1.5 times of beginning circulating pressure；Find out the maximum value of circulating pressure, as breakthrough pressure；
It is highly again breakthrough pressure gradient divided by reservoir sand 12 filled out in assay flask 11 with breakthrough pressure；
(6) after the test, a loading distilled water in other two conical flask 5 opens inlet valve 8 and outlet valve
9, half-open short circuit valve 10 starts peristaltic pump 2, is pumped into distilled water with 60mL/min discharge capacity and cleans experimental rig 30 minutes；Then it removes
To fall conical flask 5,7 port of inlet tube and 6 port of outlet tube are exposed in air, reverse phase starts peristaltic pump 2 and dallies 12 minutes,
Distilled water in Head-space equipment.
The average value of circulating pressure when initial cycle pressure is 20 and 40 minutes after on-test in the step (5).
Each parameter value situation of formula in the step (4) are as follows: discharge capacity q when live practical profile control construction0For 4m3/h
(66666.7mL/min), formation thickness is 1000cm when live practical profile control is constructed, formation pore when live practical profile control is constructed
Degree 30%.It is 1.43mL/min that on-test 20min discharge capacity, which is calculated, and discharge capacity of each time point is by formula in step (4) later
It calculates.
It is measured and is calculated, initial cycle pressure is 0.06MPa, and circulating pressure is greater than for the first time at 142.0 hours initially follows
1.5 times of ring compression 0.06MPa, i.e. 0.11MPa, then measuring dynamic gelling time is 142.50 hours；Largest loop pressure
0.224MPa, assay flask sand-pack height 0.028m, then breakthrough pressure gradient=0.224/0.028=8MPa/m.Before evaluation test
Time is equal less than 2 hours afterwards, and test pilot process is performed fully automatic.
Embodiment 2
The present embodiment and device in embodiment 1 and evaluation method are essentially identical, the difference is that: the speed regulation of peristaltic pump
Range is 0~50mL/min；Reservoir sand grain diameter is 0.2~1.5mm；Sieve mesh number is 200；The test gels 14 of evaluation are
The gel that 0.5% polyacrylamide (molecular weight is 20,000,000, degree of hydrolysis 18%), 0.5% chromic acetate are formed；Test temperature is
105℃；
In the step (3), test gels 14 are pumped into 10mL/min discharge capacity；After continuing 45 minutes, 8 He of inlet valve is closed
Outlet valve 9 is opened and is shorted valve 10；
In the step (6), distilled water is pumped into 80mL/min discharge capacity and is cleaned experimental rig 35 minutes；Reverse phase starting is wriggled
2 idle running of pump 10 minutes, the distilled water in Head-space equipment.
Each parameter value situation of formula in the step (4) are as follows: discharge capacity q when live practical profile control construction0For 3m3/h
(50000.0mL/min), formation thickness is 1000cm when live practical profile control is constructed, formation pore when live practical profile control is constructed
Degree 22%.It is 1.06mL/min that on-test 20min discharge capacity, which is calculated, and discharge capacity of each time point is by formula in step (4) later
It calculates.
It is measured and is calculated, initial cycle pressure is 0.04MPa, and circulating pressure is greater than initial cycle for the first time at 97.3 hours
1.5 times of pressure 0.04MPa, i.e. 0.07MPa, then measuring dynamic gelling time is 97.3 hours；Largest loop pressure
0.171MPa, assay flask sand-pack height 0.028m, then breakthrough pressure gradient=0.171/0.028=6.1MPa/m.Evaluation test
Front and back time is equal less than 2 hours, and test pilot process is performed fully automatic.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of profile control test gels evaluation of dynamic method, it is characterised in that: the following steps are included:
(1) prepare an assay flask (11), seal one end, be packed into reservoir sand (12) in assay flask (11), and to stratum
It is mixed into a certain amount of test gels (14) in husky (12), the other end of leakage test bottle (11)；Assay flask (11) one end is passed through
Pipeline is sequentially communicated the outlet of pressure test equipment and peristaltic pump (2), the import that the other end passes through pipeline connection peristaltic pump (2)；
(2) start peristaltic pump (2), the discharge capacity of peristaltic pump (2) is constantly adjusted according to time T, every 20 minutes, change primary row
Amount, acquires a pressure data and records, test period 7 to 15 days；Discharge capacity q when different time TtIt is calculated as follows:
Wherein:
qt: evaluation test starts T moment peristaltic pump (2) discharge capacity after timing, mL/min；
R: assay flask (11) inside radius, cm；
q0: discharge capacity when live practical profile control construction, mL/min；
H: formation thickness when live practical profile control construction, cm；
φ: formation porosity when live practical profile control construction, no unit quantity
T: time after on-test timing, min；
(3) m- pressure curve is found out in circulating pressure data point according to test data analyzer when drawing, and is greater than initially follows for the first time
Corresponding time T, as gelation time at 1.5 times of ring compression；Find out the maximum value of circulating pressure, as breakthrough pressure；It uses again
Breakthrough pressure is breakthrough pressure gradient divided by reservoir sand (12) height filled out in assay flask (11).
2. a kind of profile control according to claim 1 test gels evaluation of dynamic method, it is characterised in that: the step
Suddenly the average value of circulating pressure when initial cycle pressure is 20 and 40 minutes after on-test in (3)；15 days in the step (3)
Whole pressure datas are both less than 1.5 times of initial cycle pressure, then it is assumed that tested test gels (14) are dynamically unable to plastic.
3. a kind of profile control according to claim 1 test gels evaluation of dynamic method, it is characterised in that: the step
Suddenly in (1), guarantee that the assay flask (11) equipped with reservoir sand (12) and test gels (14) is set up vertically, and its external temperature can
It adjusts；Guarantee that reservoir sand (12) position is fixed in the step (1).
4. a kind of profile control according to claim 1 test gels evaluation of dynamic method, it is characterised in that: the step
Suddenly it is close for assay flask (11) both ends that reservoir sand (12) will be housed to be mixed into the mode of reservoir sand (12) for the test gels (14) in (1)
Test gels (14) are pumped into assay flask (11) by pipeline from the bottom of assay flask (11), are made using peristaltic pump (2) by envelope
It is mixed with reservoir sand.
5. a kind of profile control according to claim 1 test gels evaluation of dynamic method, it is characterised in that: the step
Suddenly there is pre- emptying process between (1) and step (2), the air of each pipeline in step (1) is discharged；The step (3) is equipped with afterwards
Equipment cleaning process restarts to measure next test gels after equipment cleaning.
6. a kind of dress of the test gels evaluation of dynamic method of the profile control for as described in claim 1 to 5 any one
It sets, it is characterised in that: including computer (1), peristaltic pump (2), pressure sensor (3), insulating box (4) and several conical flasks
(5)；
The computer (1) is provided with data collecting card, data processing software and control system；The computer (1) passes through number
The peristaltic pump (2) is connected according to control line (13), the computer (1) is electrically connected pressure sensor (3)；
It is inserted with outlet tube (6) and inlet tube (7) simultaneously in an at least conical flask (5)；The inlet tube (7) is far from institute
It states conical flask (5) one end and is connected with inlet valve (8), peristaltic pump (2), pressure sensor (3) and insulating box (4) in turn；It is described
Outlet tube (6) is connected with outlet valve (9) and insulating box (4) in turn far from the conical flask (5) one end；The outlet tube (6)
Tap line is equipped between inlet tube (7), the tap line is between the inlet valve (8) and peristaltic pump (2)；It is described
Tap line, which is equipped with, is shorted valve (10)；
Assay flask (11) are equipped in the insulating box (4), assay flask (11) bottom is connected to the inlet tube (7), the examination
It tests at the top of bottle (11) and is connected to outlet tube (6).
7. according to claim 6 a kind of for the profile control device of test gels evaluation of dynamic method, feature
Be: there are spacing perpendicular to the insulating box (4) bottom, but with the insulating box (4) bottom for the assay flask (11)；It is described
Assay flask (11) includes upper end cover (111), bottle body (112) and lower cover (113)；The upper end cover (111) and lower cover (113)
The bottle body (112) are threadedly coupled, and are both sealed between the bottle body (112) using silicagel pad；The upper end cover
(111) and on the outside of lower cover (113) outlet tube (6) and inlet tube (7), the upper end cover (111) and lower end are respectively communicated with
Sieve (114) are equipped on the inside of lid (113)；Two sieve (114) is respectively positioned in the bottle body (112), and edge with bottle
Body (112) wall is close to；Reservoir sand (12) are filled in bottle body (112) between two sieve (114).
8. according to claim 7 a kind of for the profile control device of test gels evaluation of dynamic method, feature
It is: in the threaded connection of the upper end cover (111), lower cover (113) and bottle body (112), the upper end cover (111) and lower end
Covering on (113) is internal screw thread, is external screw thread on the bottle body (112)；On the outside of the upper end cover (111) and lower cover (113)
Outlet tube (6) pipeline section and inlet tube (7) pipeline section being respectively communicated with are stainless steel material；Outlet tube (6) pipeline section and into
Liquid pipe (7) pipeline section one end is welded with the upper end cover (111) and lower cover (113) respectively, outlet tube (6) pipeline section and feed liquor
Pipe (7) pipeline section other end penetrates the insulating box (4) and is respectively communicated with the conical flask (5) and pressure sensor (3).
9. according to claim 7 a kind of for the profile control device of test gels evaluation of dynamic method, feature
Be: the pipeline section of the outlet tube (6) and the separate insulating box (4) one end of inlet tube (7) is all made of stainless steel tube or heatproof
Silicone tube；The bottle body (112) is a stainless pipe；Sieve (114) material is stainless steel, and the sieve mesh number is 50
~400.
10. according to claim 6 a kind of for the profile control device of test gels evaluation of dynamic method, feature
Be: the inlet tube (7) is inserted into conical flask (5) one end end face and is less than away from the distance of the conical flask (5) bottom
The outlet tube (6) is inserted into the distance of conical flask (5) one end end face away from the conical flask (5) bottom；The feed liquor
It manages (7), outlet tube (6), inlet valve (8), outlet valve (9), be shorted valve (10) and each pipeline top connection position pressure resistance 1.0MPa
More than, 150 DEG C of heatproof or more；The inlet valve (8), outlet valve (9), short circuit valve (10) and each pipeline top connection portion are stainless
Steel material；30~200 DEG C of temperature of the insulating box (4) is adjustable.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108801858B (en) * | 2017-04-28 | 2020-09-08 | 中国石油天然气股份有限公司 | Device and method for evaluating dynamic gelling performance of gel |
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| CN110361296A (en) * | 2018-04-10 | 2019-10-22 | 中国石油天然气股份有限公司 | A kind of determination device and method of polymer gel system gel-forming property |
| CN109342270A (en) * | 2018-10-26 | 2019-02-15 | 中国石油天然气股份有限公司 | The determining device of the gelation time of cross-linked polymer solution and determining method |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4286457A (en) * | 1980-03-06 | 1981-09-01 | Shell Oil Company | Viscosity measurement |
| WO1996034269A1 (en) * | 1995-04-28 | 1996-10-31 | E.I. Du Pont De Nemours And Company | Improved differential pressure capillary viscometer and analytical process |
| US5869750A (en) * | 1997-10-08 | 1999-02-09 | Halliburton Energy Services, Inc. | Method, system and device for testing two-phase compressible compositions having gas under pressure |
| US6364015B1 (en) * | 1999-08-05 | 2002-04-02 | Phillips Petroleum Company | Method of determining fracture closure pressures in hydraulicfracturing of subterranean formations |
| WO2002079778A2 (en) * | 2001-03-28 | 2002-10-10 | Rheologics, Inc. | In vivo delivery methods and compositions |
| CN1515896A (en) * | 2003-01-09 | 2004-07-28 | 华南热带农产品加工设计研究所 | Latex thermal stability determination method |
| CN201034886Y (en) * | 2007-04-30 | 2008-03-12 | 中国石油化工股份有限公司江苏油田分公司石油工程技术研究院 | Pre cross linked gel grain significance testing instrument |
| CN102494968A (en) * | 2011-11-23 | 2012-06-13 | 广东生益科技股份有限公司 | Test method for automated test of gelating state |
| CN102759604A (en) * | 2012-07-30 | 2012-10-31 | 西安石油大学 | Performance detection method of gel for water shutoff profile control |
| CN103364310A (en) * | 2012-03-28 | 2013-10-23 | 中国石油大学(北京) | Strong gel strength measuring apparatus and measuring method |
| CN103995083A (en) * | 2014-05-13 | 2014-08-20 | 中国石油天然气股份有限公司 | Method for evaluating adaptability of polymer gel profile control agent to oil reservoir |
| CN104076124A (en) * | 2014-06-23 | 2014-10-01 | 中国石油大学(华东) | Low-frequency resonance wave assisted gel plugging performance evaluation testing device and method |
| CN104090073A (en) * | 2014-07-03 | 2014-10-08 | 中国石油大学(北京) | High-temperature leak stopping gel performance tester |
| CN104535421A (en) * | 2014-12-31 | 2015-04-22 | 大港油田集团有限责任公司 | Detecting instrument and method for performance of cross-linked polymer gel |
| CN104573215A (en) * | 2014-12-31 | 2015-04-29 | 大港油田集团有限责任公司 | Calculation method of profile control agent particle concentration and diameter |
| CN104677743A (en) * | 2015-03-10 | 2015-06-03 | 中国石油大学(北京) | Measurement method and device for properties of gel plugging agent in reservoirs |
| CN205483826U (en) * | 2016-01-29 | 2016-08-17 | 中国石油天然气股份有限公司 | Simple and easy experimental apparatus of water shutoff and profile control agent shutoff intensity |
| CN105939611A (en) * | 2013-12-10 | 2016-09-14 | 科.汉森有限公司 | A screening method for rheological properties of milk gel |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2771195B2 (en) * | 1988-10-31 | 1998-07-02 | 株式会社日立製作所 | Resin flow hardening characteristic measuring method, thermosetting resin viscosity prediction method using the same, and thermosetting resin flow prediction method |
| US6928877B2 (en) * | 2002-05-24 | 2005-08-16 | Symyx Technologies, Inc. | High throughput microbalance and methods of using same |
| US8355876B2 (en) * | 2006-03-31 | 2013-01-15 | Cfd Research Corporation | Microfluidic assay for selection and optimization of drug delivery vehicles to tumors |
-
2016
- 2016-10-17 CN CN201610906734.5A patent/CN106501127B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4286457A (en) * | 1980-03-06 | 1981-09-01 | Shell Oil Company | Viscosity measurement |
| WO1996034269A1 (en) * | 1995-04-28 | 1996-10-31 | E.I. Du Pont De Nemours And Company | Improved differential pressure capillary viscometer and analytical process |
| US5869750A (en) * | 1997-10-08 | 1999-02-09 | Halliburton Energy Services, Inc. | Method, system and device for testing two-phase compressible compositions having gas under pressure |
| US6364015B1 (en) * | 1999-08-05 | 2002-04-02 | Phillips Petroleum Company | Method of determining fracture closure pressures in hydraulicfracturing of subterranean formations |
| WO2002079778A2 (en) * | 2001-03-28 | 2002-10-10 | Rheologics, Inc. | In vivo delivery methods and compositions |
| CN1515896A (en) * | 2003-01-09 | 2004-07-28 | 华南热带农产品加工设计研究所 | Latex thermal stability determination method |
| CN201034886Y (en) * | 2007-04-30 | 2008-03-12 | 中国石油化工股份有限公司江苏油田分公司石油工程技术研究院 | Pre cross linked gel grain significance testing instrument |
| CN102494968A (en) * | 2011-11-23 | 2012-06-13 | 广东生益科技股份有限公司 | Test method for automated test of gelating state |
| CN103364310A (en) * | 2012-03-28 | 2013-10-23 | 中国石油大学(北京) | Strong gel strength measuring apparatus and measuring method |
| CN102759604A (en) * | 2012-07-30 | 2012-10-31 | 西安石油大学 | Performance detection method of gel for water shutoff profile control |
| CN105939611A (en) * | 2013-12-10 | 2016-09-14 | 科.汉森有限公司 | A screening method for rheological properties of milk gel |
| CN103995083A (en) * | 2014-05-13 | 2014-08-20 | 中国石油天然气股份有限公司 | Method for evaluating adaptability of polymer gel profile control agent to oil reservoir |
| CN104076124A (en) * | 2014-06-23 | 2014-10-01 | 中国石油大学(华东) | Low-frequency resonance wave assisted gel plugging performance evaluation testing device and method |
| CN104090073A (en) * | 2014-07-03 | 2014-10-08 | 中国石油大学(北京) | High-temperature leak stopping gel performance tester |
| CN104535421A (en) * | 2014-12-31 | 2015-04-22 | 大港油田集团有限责任公司 | Detecting instrument and method for performance of cross-linked polymer gel |
| CN104573215A (en) * | 2014-12-31 | 2015-04-29 | 大港油田集团有限责任公司 | Calculation method of profile control agent particle concentration and diameter |
| CN104677743A (en) * | 2015-03-10 | 2015-06-03 | 中国石油大学(北京) | Measurement method and device for properties of gel plugging agent in reservoirs |
| CN205483826U (en) * | 2016-01-29 | 2016-08-17 | 中国石油天然气股份有限公司 | Simple and easy experimental apparatus of water shutoff and profile control agent shutoff intensity |
Non-Patent Citations (2)
| Title |
|---|
| CYY-II型调剖剂流变特性评价及应用;尚宏志 等;《采油工程》;20120630;第2卷(第2期);第1-3页 |
| 调剖堵水材料研究现状与发展趋势;纪朝凤 等;《石油钻采工艺》;20020131;第24卷(第1期);第54-57页 |
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