CN204098907U - For studying fractured reservoir spill and leakage with the research device depositing genesis mechanism - Google Patents
For studying fractured reservoir spill and leakage with the research device depositing genesis mechanism Download PDFInfo
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- CN204098907U CN204098907U CN201420433105.1U CN201420433105U CN204098907U CN 204098907 U CN204098907 U CN 204098907U CN 201420433105 U CN201420433105 U CN 201420433105U CN 204098907 U CN204098907 U CN 204098907U
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Abstract
The research device depositing together genesis mechanism for studying fractured reservoir spill and leakage of the present utility model comprises the simulation wellbore hole being provided with seal chamber, the simulated formation being provided with seal chamber, and simulated formation crack, wherein simulated formation crack is provided with the crack being communicated with simulation wellbore hole and simulated formation.Need research fractured reservoir spill and leakage with when depositing genesis mechanism, in simulation wellbore hole, inject drilling fluid and circulate, in simulated formation, injecting simulated formation fluid.Change the different parameters such as pressure differential parameter, fluid properties, by the seepage flow situation of observing in simulation fracture and measure fluid content over time situation analyze spill and leakage with depositing genesis mechanism.Test can specifically divide constant volume to test and level pressure test, thus simulates the strata pressure system of different down-holes.
Description
Technical field
The utility model relates to a kind of for studying fractured reservoir spill and leakage with the research device depositing genesis mechanism.
Background technology
When boring fractured reservoir, stratum spill and leakage often can be there is with the phenomenon of depositing.Stratum spill and leakage refers to that drilling fluid and formation fluid weight occur due to density contrast and replace.That is, drilling fluid enters crack and formation fluid enters the simultaneous phenomenon of pit shaft.Spill and leakage occurs with when depositing, the drilling fluid in pit shaft and the formation fluid in stratum exchange frequently, and formation fluid can destroy the performance of drilling fluid after invading pit shaft.And mud filtrate invasion stratum will the flow passage of blocking formation fluid, thus cause in-place permeability to decline, make reservoir fluid can not be collected, and then cause problems such as missing mistake is returned, blowout out of control, reservoir damage.But, when depositing together at situ of drilling well generation spill and leakage, can only the situation inferring shaft bottom in the phenomenon on ground be relied on, be not easy directly to observe spill and leakage phenomenon, thus also with regard to being difficult to, spill and leakage be studied with the genesis mechanism of depositing.
Therefore, how solving spill and leakage and be difficult to observe and the problem studied with depositing genesis mechanism, is those skilled in the art's technical issues that need to address.
Utility model content
For the problems referred to above, the utility model proposes a kind of for studying fractured reservoir spill and leakage with the research device depositing genesis mechanism, be convenient to observe spill and leakage phenomenon, and carry out spill and leakage with the research of depositing genesis mechanism by changing the means such as operating pressure, working media character.
The research device depositing together genesis mechanism for studying fractured reservoir spill and leakage of the present utility model comprises the simulation wellbore hole being provided with seal chamber, the simulated formation being provided with seal chamber, and simulated formation crack, wherein said simulated formation crack is provided with the crack being communicated with described simulation wellbore hole and described simulated formation.
In one embodiment, be provided with simulation drilling rod in described simulation wellbore hole, wherein said simulation drilling rod is provided with the fluid passage that can be communicated with the seal chamber of described simulation wellbore hole.
In one embodiment, also comprise the first pressure limiting device of the pressure in the seal chamber for limiting described simulated formation, and for limit described simulation wellbore hole seal chamber in the second pressure limiting device of pressure.
In one embodiment, also comprise and to be positioned at below described simulation wellbore hole and described simulated formation and for separating of the knockout drum of drilling fluid and formation fluid, wherein said knockout drum is communicated with the seal chamber of described simulation wellbore hole with described simulated formation with the valve of the bottom of described simulated formation by being arranged on described simulation wellbore hole.
In one embodiment, described knockout drum is also communicated with the seal chamber of described simulated formation by the pipeline being arranged on the top of described simulated formation, is communicated with the seal chamber of described simulation wellbore hole by the pipeline on the top being arranged on described simulation drilling rod.
In one embodiment, also comprise can measure analog stratum and simulation wellbore hole at the pressure sensor of the pressure at described crack place.
In one embodiment, described simulated formation crack comprises the side plate being fixed on rear plate between simulated formation and simulation wellbore hole, being removably disposed in described rear plate both sides, and the header board removably arranged on described side plate, wherein, the gap on described side plate forms described crack.
In one embodiment, described first pressure limiting device comprises and to be positioned at above described simulated formation and adjustable for height first height regulating, and be located at the first leather hose be communicated with in described first height regulating and with it, wherein, the below of described first leather hose is arranged in described knockout drum, and described first height regulating is communicated with the seal chamber of described simulated formation.
In one embodiment, described second pressure limiting device comprises and to be positioned at above described simulation wellbore hole and adjustable for height second height regulating, and be located at the second leather hose be communicated with in described second height regulating and with it, wherein, the below of described second leather hose is arranged in described knockout drum, and described second height regulating is communicated with the seal chamber of described simulation wellbore hole.
In one embodiment, described header board is provided with grid scale.
Relative to prior art, the research device depositing together genesis mechanism for studying fractured reservoir spill and leakage of the present utility model comprises simulation wellbore hole, simulated formation and simulated formation crack.Simulation wellbore hole is provided with the seal chamber for holding drilling fluid, for simulating the pit shaft in actual well drilled process.Simulated formation is provided with the seal chamber for holding simulated formation fluid, for simulating the stratum in actual well drilled process.Simulated formation crack is provided with the crack for being communicated with simulation wellbore hole and simulated formation, for simulating the crack produced in drilling process.Need research fractured reservoir spill and leakage with when depositing genesis mechanism, in simulation wellbore hole, inject drilling fluid, in simulated formation, inject simulated formation fluid.Treating after a period of time, analyzing spill and leakage with depositing genesis mechanism by the content of the drilling fluid in measure analog stratum and simulated formation fluid.
Accompanying drawing explanation
Also will be described in more detail the utility model with reference to accompanying drawing based on embodiment hereinafter.In the drawings:
Fig. 1 is of the present utility model for studying the same structural representation depositing the research device of genesis mechanism of fractured reservoir spill and leakage.
In the accompanying drawings, identical parts use identical Reference numeral.Accompanying drawing is not according to the scaling of reality.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, arrow is the flow direction of liquid.The research device depositing together genesis mechanism for studying fractured reservoir spill and leakage of the present utility model comprises the simulation wellbore hole 7 being provided with seal chamber, the simulated formation 6 being provided with seal chamber and simulated formation crack 12.In one embodiment, the global shape of simulation wellbore hole 7 is circular tubing string.Be provided with roof in the upper end of circular tubing string, lower end is provided with diapire.The shape of seal chamber is limited by circular tubing string, roof and diapire.And on the diapire of simulation wellbore hole 7, be provided with drainage valve 9.After test completes, by drainage valve 9, the drilling fluid being positioned at the seal chamber of simulation wellbore hole 7 can be discharged.
In addition, the material of the circular tubing string of simulation wellbore hole 7 can be visual material, such as transparent plastic, to facilitate the flow morphology in the seal chamber observing simulation wellbore hole 7.When the circular tubing string of simulation wellbore hole 7 is transparent plastic, and when the length of circular tubing string is longer, at the arranged outside fixture of circular tubing string, bending or inclination etc. can be there are to prevent round tube post.Particularly, fixture can for being set in the irony pipe box outside circular tubing string.During installation, the roof of irony pipe box range simulation pit shaft 7 can be made comparatively near, so that observe the flow morphology be positioned at below simulation wellbore hole 7.
Further, in simulation wellbore hole 7, be provided with simulation drilling rod 13, so that the drilling rod in simulation actual well drilled process, thus improve the accuracy of test further.In one embodiment, simulation drilling rod 13 is provided with the through hole running through its two ends.This through hole is the fluid passage of simulation drilling rod 13, injects liquid, to improve the authenticity of simulation further by this fluid passage in the seal chamber of simulation wellbore hole 7.
In process of the test, simulation drilling rod 13 can enter in simulation wellbore hole 7 in the mode of rotation or vertically movement.Also can before the test, first simulation drilling rod 13 be fixed on simulation wellbore hole 7.Preferentially select herein and directly simulation drilling rod 13 is fixed on simulation wellbore hole 7, so that arrange.Particularly, the diapire of lower end near simulation wellbore hole 7 of drilling rod 13 is simulated, to improve the authenticity of simulation further.The upper end of simulation drilling rod 13 is positioned at the outside of simulation wellbore hole 7, so that be connected with pipeline.
In one embodiment, the shape of simulated formation 6 is also circular tubing string.Also be provided with roof in the upper end of the circular tubing string of simulated formation 6, lower end is provided with diapire.The shape of the seal chamber of simulated formation 6 is limited by circular tubing string, roof and diapire.And on the diapire of simulated formation 6, be provided with draining valve 8.After test completes, can will be positioned at the simulated formation fluid expulsion of the seal chamber of simulated formation 6 by draining valve 8.
In addition, the material of the circular tubing string of simulated formation 6 also can be such as transparent plastic, to facilitate the flow morphology observed in simulated formation 6.Further, be also arranged with irony pipe box in the outside of the circular tubing string of simulated formation 6, bending occur to prevent the circular tubing string of simulated formation 6 or tilts.In addition, the irony pipe box of simulated formation 6 can also be connected by connecting rod with the irony pipe box of simulation wellbore hole 7, to improve the steadiness of the circular tubing string of simulated formation 6 and simulation wellbore hole 7 further.
Simulated formation crack 12 is provided with the crack for being communicated with simulated formation 6 and simulation wellbore hole 7, with the crack produced in Reality simulation drilling process.In one embodiment, simulated formation crack 12 comprises the side plate being fixed on rear plate between simulated formation 6 and simulation wellbore hole 7, being removably disposed in rear plate both sides, and removably arranges the header board on side plate.The side plate of both sides is equipped with gap, thus forms crack.When needing the size changing crack, gap size side plate can changed or directly change on side plate.
In addition, the material of header board also can be such as transparent plastic, so that the flow morphology in observatory control formation fracture 12.Can also grid scale be set on header board, be positioned at the drilling fluid in simulated formation crack 12 or the content of simulated formation fluid so that measure.
This research device also comprises pressure sensor 14.It is the pressure at crack place for measure analog stratum 6 and simulation wellbore hole 7.Particularly, a pressure sensor 14 can respectively be established at the edge of header board.Wherein two for the pressure of measure analog stratum 6 above and below crack, and two other is for the pressure of measure analog pit shaft 7 above and below crack.
This research device also comprises knockout drum 1.When knockout drum 1 is set, be located at the below of simulation wellbore hole 7 and simulated formation 6.Like this, be convenient to the drilling fluid in the simulated formation fluid of simulated formation 6 and simulation wellbore hole 7 to enter in knockout drum 1, save trouble and labor.In addition, when drilling fluid is convenient to be separated with simulated formation fluid, the drilling fluid after separation and simulated formation fluid can be filled with in simulated formation 6 and simulation wellbore hole 7 again and uses as test fluid.Now, can two pipelines be set in knockout drum 1.One of them pipeline is located at the top at simulated formation 6, for the simulated formation fluid being arranged in knockout drum 1 being injected the seal chamber of simulated formation 6.Another one install pipeline is being simulated above drilling rod 13, for the drilling fluid being arranged in knockout drum 1 being injected the seal chamber of simulation wellbore hole 7.Wherein, the pipeline being communicated with knockout drum 1 and simulated formation 6 arranges the first pump 2 and oil inlet valve 4, the pipeline being communicated with knockout drum 1 and simulation wellbore hole 7 arranges the second pump 3 and liquid flowing valve 5.
This research device also comprises the second pressure limiting device 11 of the pressure in the seal chamber for limiting simulation wellbore hole 7, to facilitate according to the pressure in test demand adjustment simulation wellbore hole 7.In one embodiment, the second pressure limiting device 11 comprises the second height regulating 111 and the second leather hose 112.Second height regulating 111 to be positioned at above simulation wellbore hole 7 and height adjustable, and the second height regulating 111 is communicated with the seal chamber of simulation wellbore hole 7.Second leather hose 112 to be located in the second height regulating 111 and to be communicated with the second height regulating 111, and the below of the second leather hose 112 is arranged in knockout drum 1.
Further, the second leather hose 112 can use same pump with being arranged on the pipeline of simulating on drilling rod 13.When pumping into drilling fluid by pump in pipeline, also can inject drilling fluid in the second leather hose 112 simultaneously.And after closedown pump, the constancy of volume of drilling fluid in the second leather hose 112, thus can pressure be regulated.Such as, when needing to increase the pressure in simulation wellbore hole 7, the height of pit shaft adjustable pipe is heightened.Certainly, also directly valve can be set on the second leather hose 112.When injecting drilling fluid to simulation wellbore hole 7, open the valve on the second leather hose 112.Like this, after drilling fluid is full of simulation wellbore hole 7, drilling fluid can flow into the second leather hose 112.After being full of drilling fluid in the second leather hose 112, then valve-off.
This research device also comprises the first pressure limiting device 10 of the pressure in the seal chamber for limiting simulated formation 6, to facilitate according to the pressure in test demand adjustment simulated formation 6.In one embodiment, the first pressure limiting device 10 comprises the first height regulating 101 and the first leather hose 102.First height regulating 101 to be positioned at above simulated formation 6 and height adjustable, and the first height regulating 101 is communicated with the seal chamber of simulated formation 6.First leather hose 102 to be located in the first height regulating 101 and to be communicated with the first height regulating 101, and the below of the first leather hose 102 is arranged in knockout drum 1.First height regulating 101 can be identical with the using method of the second leather hose 112 with the second height regulating 111 with the using method of the first leather hose 102, repeats no more herein.
In drilling process, when boring chance fracture-type reservoir, because formation fluid density is less than drilling fluid density, namely there is spill and leakage and resemble with depositing cash in formation fluid and the metathesis of drilling fluid generation gravity.Formation fluid invades the well shaft destroyed performance of drilling fluid, and mud filtrate invasion stratum will the flow passage of blocking formation fluid, causes in-place permeability to decline, and makes reservoir fluid can not be collected.
Peupendicular hole bores to meet when fractured reservoir generation spill and leakage is same to be deposited needs to possess three conditions: 1. exist in stratum and make drilling fluid to the fissure channel of formation leakage; 2. the space of leakage drilling fluid can be held in stratum; 3. wellbore pressure is in gravitational difference displacement window.Wherein the producing cause of gravity displacement window is: formation fluid density is less than drilling fluid density, lateral pressure gradient in stratum is less than the drilling fluid lateral pressure gradient of corresponding well section, and drilling fluid changes the pressure balance relation on pit shaft and stratum at the head of liquid that crack section produces.When crack have on vertical significantly extend time, than being easier to, crack as steep in height, just occurs that spill and leakage is with depositing.
When there is spill and leakage with when depositing, wellbore pressure and strata pressure meet P
r< P
well+ P
tension force< P
r+ ρ
mg|AE|, i.e. P
r-P
tension force< P
well< P
r+ ρ
mg|AE|-P
tension force.Wherein P
wellfor the wellbore pressure that crack bottom position is corresponding, Pa; P
rfor pressure in the nearly pit shaft crack of reservoir, Pa; P
tension forcefor the pressure reduction that two kinds of liquid interface surface tensions of formation fluid and drilling fluid produce, unit is Pa; ρ
mfor drilling fluid density, g/cm
3; ρ
mg|AE| is gravity displacement window, and unit is Pa, and its value is less, wherein, | AE| is vertical depth.
Process of the test can be divided into following step.
In step S001, first simulated formation 6 is loaded a certain amount of simulated formation fluid, be generally oil base, simulation wellbore hole 7 is loaded a certain amount of drilling fluid.Be the convenience of test, select respectively simulated formation 6 to be full of oil, simulation wellbore hole 7 is full of drilling fluid herein.
In step S002, by the state opening or closing the oil in control simulation stratum 6 of the first pressure limiting device 10, first pump 2, oil inlet valve 4 and draining valve 8, by the state of the drilling fluid in the second pressure limiting device 11, second pump 3, liquid flowing valve 5 and drainage valve 9 control simulation pit shaft 7, the pressure state of corner, crack is monitored by pressure sensor 14, is combined to form by the different conditions of oil and drilling fluid the state that different test conditionss simulates formation fluid and drilling fluid in actual well drilled process.
In step S003, resembled with depositing cash by the simulated formation fluid of grid scale display in simulated formation crack 12 and the spill and leakage of drilling fluid, the interval scheduled time measures drilling fluid wastage at draining valve 8 place of simulated formation 6 analyzes spill and leakage with depositing genesis mechanism.
Because fractured reservoir generation spill and leakage is with depositing and strata pressure system close relation, therefore, a hypothesis should be done to the strata pressure system of down-hole before the test.1. in the region of near wellbore zone, if wellbore bottom pressure is greater than formation pore pressure, the drilling fluid in pit shaft will invaded formation.Due to the Incoercibility of liquid phase fluid, formation fluid will inevitably flow to pit shaft and distant formation.Now formation fluid will enter pit shaft, thus drain spray occurs with the situation of depositing.Only considering the flowing of formation fluid near wellbore zone, namely only considering the region close to pit shaft area, constant volume test conditions can be set to.2. the fluid docking nearly pit shaft area due to stratum, distant place has pressure to supplement, and suppose that in pit shaft, drilling fluid flows to stratum far-end after entering stratum, and near wellbore zone pressure is constant.In such cases, if a certain degree of depth wellbore annulus pressure equals formation pore pressure in underground, because formation fluid density is lower than drilling fluid density, so annular pressure will be greater than at the above formation pore pressure of this depth location, formation fluid is made to invade pit shaft, and the following annular pressure of this depth location will be greater than strata pressure, make pit shaft drilling fluid leakage to stratum.In this case, level pressure test conditions can be set to.
Therefore, divide in order to constant volume test and level pressure test according to above two kinds of hypothesis.
Below by way of constant volume test conditions and level pressure test conditions two kinds of test conditionss, to be example to spill and leakage resemble with depositing cash simulates and analyze spill and leakage with the genesis mechanism of depositing based on this.
In an embodiment of constant volume test conditions of the present utility model, first simulated formation 6 is full of oil, simulation wellbore hole 7 is full of drilling fluid;
Then the oil inlet valve 4 of simulated formation 6, draining valve 8 and the first pressure limiting device 10 is closed to keep the simulated formation fluid volume in simulated formation 6 constant;
Keep simulation wellbore hole 7 liquid flowing valve 5 is opened, the second pump 3 is opened, drainage valve 9 and the second pressure limiting device 11 are closed;
Observe spill and leakage with the phenomenon of depositing generation by the grid scale on simulated formation crack 12, the interval scheduled time is in the wastage of the draining valve 8 place drilling fluid of simulated formation 6.
A kind of existence at stratum and pit shaft two ends when this test conditions normally creeps in order to simulate.
In another embodiment of constant volume test conditions of the present utility model, first simulated formation 6 is full of oil, simulation wellbore hole 7 is full of drilling fluid.
Close the oil inlet valve 4 of simulated formation 6, draining valve 8 and the first pressure limiting device to keep the simulated formation fluid volume in simulated formation 6 constant;
The liquid flowing valve 5 of simulation wellbore hole 7, drainage valve 9 and the second pressure limiting device 11 is kept to close.
Observe spill and leakage with the phenomenon of depositing generation by the grid scale on simulated formation crack 12, the interval scheduled time is in the wastage of draining valve 8 place of simulated formation 6 measurement drilling fluid.
This test conditions is in order to simulate a kind of existence at stratum and pit shaft two ends when drilling well stops creeping into.
For level pressure test conditions.In an embodiment of level pressure test conditions of the present utility model, first simulated formation 6 is full of oil, simulation wellbore hole 7 is full of drilling fluid;
Then closing the draining valve 8 of simulated formation 6 and the drainage valve 9 of simulation wellbore hole 7, keep the oil inlet valve 8 of simulated formation 6 and the liquid flowing valve 5 of simulation wellbore hole 7 to open, opening the first pump 2 and the second pump 3 for continuing feed flow to simulated formation 6 and simulation wellbore hole 7;
Suitably open the draining valve 8 of simulated formation 6 to keep the pressure in simulated formation 6 certain;
Observe spill and leakage with the phenomenon of depositing generation by the grid scale on simulated formation crack 12, the interval scheduled time is in the wastage of draining valve 8 place of simulated formation 6 measurement drilling fluid.
A kind of existence at stratum and pit shaft two ends when the simulation of this test conditions is normally crept into.
In another embodiment of level pressure test conditions of the present utility model, first simulated formation 6 is full of oil, simulation wellbore hole 7 is full of drilling fluid.
Close the draining valve 9 of simulated formation 7 and the drainage valve 9 of simulation wellbore hole 7, keep that the oil inlet valve 4 of simulated formation 6 is opened, the first pump 2 is opened simultaneously;
Close the liquid flowing valve 5 of simulation wellbore hole 7;
Suitably open the draining valve 8 of simulated formation 6 to keep the pressure of simulated formation 6 certain;
Observe spill and leakage with the phenomenon of depositing generation by the grid scale on simulated formation crack 12, the interval scheduled time is in the wastage of draining valve 8 place of simulated formation 6 measurement drilling fluid.
A kind of existence at stratum and pit shaft two ends during this test conditions simulation stopping drilling process.
In another embodiment of level pressure test conditions of the present utility model, first simulated formation 7 is full of oil, simulation wellbore hole 7 is full of drilling fluid.
Close oil inlet valve 4 and draining valve 8, the liquid flowing valve 5 of closing simulation wellbore hole 7 and the drainage valve 9 of simulated formation 6;
The first pressure limiting device 10 of simulated formation 6 and the second pressure limiting device 11 of simulation wellbore hole 7 is regulated to occur pressure differential to make simulated formation 6 and simulation wellbore hole 7 two ends.Pressure differential is divided into simulated formation 6 end pressure to be greater than and to be less than pressure two kinds of situations of simulation wellbore hole 7 end herein.
Observe spill and leakage with the phenomenon of depositing generation by the grid scale on simulated formation crack 12, the interval scheduled time is in the wastage of draining valve 8 place of simulated formation 6 measurement drilling fluid.
There is a kind of state during pressure differential in this test conditions simulation static pressure state sub-surface end and drilling fluid end.
Also comprise in process of the test under above-described constant volume test conditions and level pressure test conditions change simulated formation fluid parameter, drilling liquid parameter, simulated formation crack seam wide and measure the process of the test of drilling fluid leakage amount interval time, in order to simulated formation end and drilling well end, the spill and leakage under different tests condition resembles with depositing cash.The amount of leakage that the interval simultaneously selected in above-described process of the test makes a reservation for be less than the time drilling fluid reaches the highest point of the simulation fracture time used, otherwise affect the spill and leakage process of both sides, and then affects the accuracy that spill and leakage deposits together Analysis on Mechanism.
Although be described the utility model with reference to preferred embodiment, when not departing from scope of the present utility model, various improvement can be carried out to it and parts wherein can be replaced with equivalent.Especially, only otherwise there is structural hazard, the every technical characteristic mentioned in each embodiment all can combine in any way.The utility model is not limited to specific embodiment disclosed in literary composition, but comprises all technical schemes fallen in the scope of claim.
Claims (10)
1. deposit together the research device of genesis mechanism for studying fractured reservoir spill and leakage for one kind, it is characterized in that, comprise the simulation wellbore hole being provided with seal chamber, the simulated formation being provided with seal chamber, and simulated formation crack, wherein said simulated formation crack is provided with the crack being communicated with described simulation wellbore hole and described simulated formation.
2. research device according to claim 1, is characterized in that, is provided with simulation drilling rod in described simulation wellbore hole, and wherein said simulation drilling rod is provided with the fluid passage that can be communicated with the seal chamber of described simulation wellbore hole.
3. research device according to claim 2, is characterized in that, also comprises the first pressure limiting device of the pressure in the seal chamber for limiting described simulated formation, and for limit described simulation wellbore hole seal chamber in the second pressure limiting device of pressure.
4. research device according to claim 3, it is characterized in that, also comprise and to be positioned at below described simulation wellbore hole and described simulated formation and for separating of the knockout drum of drilling fluid and formation fluid, wherein said knockout drum is communicated with the seal chamber of described simulation wellbore hole with described simulated formation with the valve of the bottom of described simulated formation by being arranged on described simulation wellbore hole.
5. research device according to claim 4, it is characterized in that, described knockout drum is also communicated with the seal chamber of described simulated formation by the pipeline being arranged on the top of described simulated formation, is communicated with the seal chamber of described simulation wellbore hole by the pipeline on the top being arranged on described simulation drilling rod.
6. the research device according to any one of claim 1-3, is characterized in that, also comprise can measure analog stratum and simulation wellbore hole at the pressure sensor of the pressure at described crack place.
7. the research device according to any one of claim 1-3, it is characterized in that, described simulated formation crack comprises the side plate being fixed on rear plate between simulated formation and simulation wellbore hole, being removably disposed in described rear plate both sides, and the header board removably arranged on described side plate, wherein, the gap on described side plate forms described crack.
8. research device according to claim 5, it is characterized in that, described first pressure limiting device comprises and to be positioned at above described simulated formation and adjustable for height first height regulating, and be located at the first leather hose be communicated with in described first height regulating and with it, wherein, the below of described first leather hose is arranged in described knockout drum, and described first height regulating is communicated with the seal chamber of described simulated formation.
9. research device according to claim 5, it is characterized in that, described second pressure limiting device comprises and to be positioned at above described simulation wellbore hole and adjustable for height second height regulating, and be located at the second leather hose be communicated with in described second height regulating and with it, wherein, the below of described second leather hose is arranged in described knockout drum, and described second height regulating is communicated with the seal chamber of described simulation wellbore hole.
10. research device according to claim 7, is characterized in that, described header board is provided with grid scale.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640061A (en) * | 2016-12-06 | 2017-05-10 | 西南石油大学 | Simulation experiment device and method of mineshaft-stratum fracture coupled flowing |
| CN108222921A (en) * | 2016-12-22 | 2018-06-29 | 中国石油天然气股份有限公司 | The test method of stratum analog machine and formation fracture |
| CN110146424A (en) * | 2019-05-08 | 2019-08-20 | 中国石油大学(北京) | The simulator and method of stratum cell breath |
-
2014
- 2014-08-01 CN CN201420433105.1U patent/CN204098907U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640061A (en) * | 2016-12-06 | 2017-05-10 | 西南石油大学 | Simulation experiment device and method of mineshaft-stratum fracture coupled flowing |
| WO2018103426A1 (en) * | 2016-12-06 | 2018-06-14 | 西南石油大学 | Wellbore and formation crack coupled flow simulation experiment device and method |
| CN106640061B (en) * | 2016-12-06 | 2019-08-02 | 西南石油大学 | A kind of pit shaft and formation fracture Coupled Flow imitative experimental appliance and method |
| US10794180B2 (en) | 2016-12-06 | 2020-10-06 | Southwest Petroleum University | Mineshaft-stratum fracture coupled flowing simulation experiment device and method |
| CN108222921A (en) * | 2016-12-22 | 2018-06-29 | 中国石油天然气股份有限公司 | The test method of stratum analog machine and formation fracture |
| CN110146424A (en) * | 2019-05-08 | 2019-08-20 | 中国石油大学(北京) | The simulator and method of stratum cell breath |
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