CN206386114U - A kind of annular space trap Fluid pressure raises experimental provision - Google Patents
A kind of annular space trap Fluid pressure raises experimental provision Download PDFInfo
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- CN206386114U CN206386114U CN201720024185.9U CN201720024185U CN206386114U CN 206386114 U CN206386114 U CN 206386114U CN 201720024185 U CN201720024185 U CN 201720024185U CN 206386114 U CN206386114 U CN 206386114U
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Abstract
The utility model provides a kind of annular space trap Fluid pressure rise experimental provision, including：There are multiple sleeve pipes inside kettle, kettle, including：Surface pipe；The intermediate casing being coaxially nested inside surface pipe, with surface pipe；The production casing being coaxially nested inside intermediate casing, with intermediate casing；The oil pipe being coaxially nested inside production casing, with production casing；Also include：Drilling fluid holding vessel；Cement mortar holding vessel；Heating rod, is lowered into inside production casing；The automatic confined pressure pump being connected with confined pressure chamber；Confined pressure sensor between confined pressure chamber and automatic confined pressure pump；With the interior press pump being connected inside oil pipe；Temperature sensor and interior pressure sensor are inserted with inside oil pipe, the first annular space, the second annular space and the 3rd annular space are inserted with temperature sensor and annular fluid pressure sensor.By implementing the utility model, the influence result of grout volume and temperature change to annular space trap Fluid pressure can be obtained.
Description
Technical field
The utility model is related to oil-gas well engineering technical field, in particular it relates to which a kind of annular space trap Fluid pressure is raised
Experimental provision.
Background technology
Annular space trapped pressure rise (APB, Annular Pressure Build-up) refer to due to temperature rise cause it is close
Annular fluid expands between each layer sleeve pipe closed, so that the phenomenon of annular fluid pressure rise.Annular fluid pressure rise is to one
Determine degree and will produce casing collapse or squeeze to ruin accident, can also pressure break cement sheath cause and alter groove.The untapped oil field of current China is big
Mostly viscous crude, is in the geological environment of HTHP, oil and gas reserves is very big in South Sea major part oil-gas reservoir.In viscous crude and high temperature
Can all occur casing collapse, seal failure, or even well in high pressure well development and scrap problem.Raised by annular space trapped pressure and then
Threatening the factor of well bore integrality has a lot, such as：Initial temperature of reservoir, the type of annular fluid and characteristic, cement mortar it is cementing
Ability and return it is high.Annular fluid pressure rise becomes petroleum works circle complexity engineering roadblock urgently to be resolved hurrily.
Therefore, the research elevated mechanism of annular space trapped pressure and rule are significant.Huang little Long is surveyed for deep well
Examination and production process middle ring barren trap pressure rise problem propose APB computation models, and the control technology for analyzing APB is (yellow small
Dragon, Yan De, Tian Ruirui wait deep water casing annular spaces trapped pressure to calculate and the Chinese offshore oil and gas of control technology analysis [J],
2216,28 (6)：61-65).Yin Fei analyzes computational methods (the Fei Yin and Deli of multilayer loop barren trap pressure rise
Gao.Improved Calculation of Multiple Annuli Pressure Buildup in Subsea HPHT
Wells[C].IADC/SPE-190553-MS).Roger Williamson analyze different annular fluid types to annular space trap
Influence (WILLIAMSON R, SANDERS W, JAKABOSKY T, the et.Control of contained- of pressure rise
annulus fluid pressure buildup[C].SPE/IADC 79875,2203).But the above method does not consider water
The influence of mud volume and each annular space temperature change to annular space trap Fluid pressure.
Utility model content
The main purpose of the utility model embodiment is to provide a kind of annular space trap Fluid pressure rise experimental provision, used
To obtain the influence result of grout volume and each annular space temperature change to different annular space trap Fluid pressures.It is above-mentioned in order to realize
Purpose, the utility model embodiment provides a kind of annular space trap Fluid pressure rise experimental provision, including：Inside kettle, kettle
There are multiple sleeve pipes, including：Confined pressure chamber is constituted between surface pipe, with clamper shell；Covered inside surface pipe, with top layer
Manage the intermediate casing being coaxially nested, and the 3rd annular space of formation between surface pipe；Inside intermediate casing and intermediate casing
The production casing being coaxially nested, and form between intermediate casing the second annular space；Inside production casing, it is same with production casing
The oil pipe that axle is nested, and form between production casing the first annular space；Annular space trap Fluid pressure rise experimental provision also includes：
Drilling fluid holding vessel, for inside oil pipe, the first annular space, the second annular space and the 3rd annular space inject drilling fluid；Cement mortar is stored
Tank, for injecting cement mortar to the second annular space and the 3rd annular space；Heating rod, is lowered into inside production casing, for heating drilling well
Liquid is to design temperature；The automatic confined pressure pump being connected with confined pressure chamber, for applying setting confined pressure to surface pipe；Positioned at confined pressure chamber with
Confined pressure sensor between automatic confined pressure pump, for gathering confined pressure data；With the interior press pump that is connected inside oil pipe, for oil pipe
Inside applies setting internal pressure；Temperature sensor and interior pressure sensor, the first annular space, the second annular space and the 3rd ring are inserted with inside oil pipe
Sky is inserted with temperature sensor and annular fluid pressure sensor, and temperature sensor is used for collecting temperature data, interior pressure sensor
For gathering internal pressure data, annular fluid pressure sensor is used to gather annular fluid pressure data.
In wherein a kind of embodiment, in addition to：Respectively with heating rod, automatic confined pressure pump, interior press pump, confined pressure sensor,
The control device of multiple temperature sensors, interior pressure sensor and the connection of multiple annular fluid pressure sensors, for controlling to add
Hot pin heats drilling fluid, the automatic confined pressure pump of control and applies setting confined pressure to surface pipe, controls interior press pump to application inside oil pipe
Set internal pressure, collection the confined pressure data from confined pressure sensor, multiple temperature datas from multiple temperature sensors, from interior
The internal pressure data of pressure sensor and multiple annular fluid pressure datas from multiple annular fluid pressure sensors.
In wherein a kind of embodiment, in addition to：The control valve of cement mortar first, first end respectively with cement mortar holding vessel,
With the connection of the second control valve of cement mortar first end, the second end is connected with the 3rd annular space；The control valve of cement mortar second, first end also with
Cement mortar holding vessel is connected, and the second end is connected with the second annular space；The control valve of drilling fluid first, first end is connected with the second annular space,
Second end respectively with the second end of the second control valve of drilling fluid, the second end of control valve of drilling fluid the 3rd, the control valve of drilling fluid the 4th
Two ends and the connection of drilling fluid holding vessel；The control valve of drilling fluid second, first end is connected with the 3rd annular space, the second end also with drilling fluid
3rd the second end of control valve, the second end of control valve of drilling fluid the 4th and the connection of drilling fluid holding vessel；The control valve of drilling fluid the 3rd, the
One end is connected with the first annular space, and the second end is also connected with the second end of control valve of drilling fluid the 4th and drilling fluid holding vessel；Drilling fluid
4th control valve, first end inside oil pipe with being connected, and the second end is also connected with drilling fluid holding vessel；Interior pressure control valve, first end
Be connected with interior press pump, the second end respectively with inside oil pipe, and the control valve first end of drilling fluid the 4th connection；Confined pressure valve, first end
It is connected with automatic confined pressure pump, the second end is connected with confined pressure chamber.
In wherein a kind of embodiment, kettle includes upper kettle cover and lower kettle seat；Upper kettle cover on lower kettle seat with having two two-phases
To multiple grooves, for inserting surface pipe, intermediate casing, production casing and oil pipe respectively.
In wherein a kind of embodiment, in addition to：Multiple sealing rings, for sealing multiple grooves.
In wherein a kind of embodiment, in addition to：Positioned at the upper runner of upper kettle cover；Positioned at the lower flow channel of lower kettle seat；It is upper
Road is connected with lower flow channel with condenser pump, and condenser pump is used to convey condensed water cooling kettle；The control valve of condenser pump first, first end
It is connected with upper runner, the second end is connected with condenser pump；The control valve of condenser pump second, first end is connected with condenser pump, the second end with
Lower flow channel is connected.
In wherein a kind of embodiment, in addition to：Upper kettle cover is connected by hinge with Lifting slings；Lifting slings passes through branch
Frame is connected with testing stand, for moving kettle.
Because the annular space trap Fluid pressure rise experimental provision in the utility model is by drilling fluid holding vessel to each set
Drilling fluid is injected in pipe, cement mortar simulated formation geology ring is injected to the second annular space and the 3rd annular space by cement mortar holding vessel
Border, heats drilling fluid to design temperature, by interior press pump to application setting internal pressure inside oil pipe, by enclosing automatically by heating rod
Press pump applies setting confined pressure to surface pipe, passes through confined pressure sensor, temperature sensor, interior pressure sensor and annular fluid pressure
Sensor carries out data acquisition, so as to obtain grout volume and each annular space temperature change to different annular space trap Fluid pressures
Influence result.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The accompanying drawing used required in description is briefly described, it should be apparent that, drawings in the following description are only that this practicality is new
Some embodiments of type, for those of ordinary skill in the art, on the premise of not paying creative work, can be with root
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structure chart that the utility model embodiment middle ring barren trap Fluid pressure raises experimental provision；
Fig. 2 is the knot that the utility model embodiment middle ring barren trap Fluid pressure raises experimental provision one of which embodiment
Composition；
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
In view of prior art does not consider the shadow of grout volume and each annular space temperature change to annular space trap Fluid pressure
Ring, the utility model embodiment provides a kind of annular space trap Fluid pressure rise experimental provision, by drilling fluid holding vessel to each
Drilling fluid is injected in sleeve pipe, cement mortar simulated formation geology is injected to the second annular space and the 3rd annular space by cement mortar holding vessel
Environment, heats drilling fluid to design temperature, by interior press pump to application setting internal pressure inside oil pipe, by automatic by heating rod
Confined pressure pump applies setting confined pressure to surface pipe, passes through confined pressure sensor, temperature sensor, interior pressure sensor and annular fluid pressure
Force snesor carries out data acquisition, so as to obtain grout volume and each annular space temperature change to different annular space trap Fluid pressures
Influence result.The utility model is described in detail below in conjunction with accompanying drawing.
Fig. 1 is the structure chart that the utility model embodiment middle ring barren trap Fluid pressure raises experimental provision, such as Fig. 1 institutes
Show, annular space trap Fluid pressure rise experimental provision includes：There are multiple sleeve pipes inside kettle, kettle, including；Surface pipe 34,
Confined pressure chamber 29 is constituted between clamper shell 17；The centre being coaxially nested inside surface pipe 34, with surface pipe 34
Sleeve pipe 33, and the 3rd annular space 42 of formation between surface pipe 34；Inside intermediate casing 33, with the coaxial phase of intermediate casing 33
The production casing 28 of set, and form between intermediate casing 33 second annular space 41；Inside production casing 28 and production casing
28 oil pipes 27 being coaxially nested, and form between production casing 28 first annular space 40；The rise experiment of annular space trap Fluid pressure
Device also includes：Drilling fluid holding vessel 23, for inside oil pipe 27, the first annular space 40, the second annular space 41 and the 3rd annular space 42
Inject drilling fluid；Cement mortar holding vessel 2, for injecting cement mortar to the second annular space 41 and the 3rd annular space 42；Heating rod 9, tripping in
To inside production casing 28, for heating drilling fluid to design temperature；The automatic confined pressure pump 31 being connected with confined pressure chamber 29, for
Surface pipe 34 applies setting confined pressure；Confined pressure sensor 32 between confined pressure chamber 29 and automatic confined pressure pump 31, for gathering
Confined pressure data；The interior press pump 26 being connected with the inside of oil pipe 27, for setting internal pressure to application inside oil pipe 27；Insert the inside of oil pipe 27
There are temperature sensor 5 and interior pressure sensor 11, the first annular space 40, the second annular space 41 and the 3rd annular space 42 are inserted with temperature sensor
5 and annular fluid pressure sensor 10, temperature sensor 5 is used for collecting temperature data, and interior pressure sensor 11 is used to gather internal pressure
Data, annular fluid pressure sensor 10 is used to gather annular fluid pressure data.
When it is implemented, kettle can include upper kettle cover 16 and lower kettle seat 21, the upper top of kettle cover 16 is used provided with sealing cap
In heat-insulated.Upper kettle cover 16 on lower kettle seat 21 with having multiple grooves facing each other, for inserting surface pipe 34, centre respectively
Sleeve pipe 33, production casing 28 and oil pipe 27, wherein, groove can be multiple various sizes of concentric circles.Annular space trap fluid pressure
Power rise experimental provision can also include multiple sealing rings, for sealing multiple grooves.Surface pipe 34, intermediate casing 33, life
Production sleeve pipe 28 and oil pipe 27 can be dismantled arbitrarily, independent assortment, the pressure rise situation to obtain different annular space trap fluids.
In embodiment, cement mortar holding vessel 2, drilling fluid holding vessel 23, interior press pump 26 and automatic confined pressure pump 31 can lead to
Input manifold is crossed to be connected with kettle.Drilling fluid holding vessel 23 injects liquid in drilling fluid simulated well into each sleeve pipe by liquid injection hole
Body, cement mortar holding vessel 2 injects cement mortar simulated formation geology ring by liquid injection hole to the second annular space 41 and the 3rd annular space 42
Border.Wherein, the proportioning of drilling fluid and each composition of cement mortar can need any adjustment according to experiment.Heating rod 9 can be using electricity
The mode of heating heats drilling fluid to design temperature, makes heat outwards transmit, and automatic confined pressure pump 31 applies to surface pipe 34 to be set
Determine confined pressure, interior press pump 26 applies setting internal pressure to the drilling fluid inside oil pipe 27, to simulate the pressure and temperature environment in well.Root
According to confined pressure sensor 32, interior pressure sensor 11, each inside pipe casing temperature sensors 5 and annular fluid pressure sensor
10 carry out data acquisition, and grout volume and each annular space temperature change are obtained out to different annular space trap streams according to the change of data
The influence result of body pressure, laboratory experiment data are provided to improve the integrality of pit shaft, reduction operating cost.
As shown in figure 1, annular space trap Fluid pressure rise experimental provision can also include：Enclosed respectively with heating rod 9, automatically
Press pump 31, interior press pump 26, confined pressure sensor 32, multiple temperature sensors 5, interior pressure sensor 11, and multiple annular fluid pressures
The control device 1 that force snesor 10 is connected, for controlling heating rod 9 to heat drilling fluid, controlling automatic confined pressure pump 31 to be covered to top layer
Pipe 34, which applies, sets confined pressure, and the interior press pump 26 of control is to application setting internal pressure, collection inside oil pipe 27 from confined pressure sensor 32
Confined pressure data, multiple temperature datas from multiple temperature sensors 5, the internal pressure data from interior pressure sensor 11 and come
From multiple annular fluid pressure datas of multiple annular fluid pressure sensors 10.Heating rod 9, automatic confined pressure pump 31, interior press pump
26th, confined pressure sensor 32, multiple temperature sensors 5, interior pressure sensor 11 and multiple annular fluid pressure sensors 10 can be with
It is connected by data acquisition lines with control device 1, the Wireless Telecom Equipments such as bluetooth, GPRS and control device 1 can also be passed through
It is connected.
In embodiment, annular space trap Fluid pressure rise experimental provision can also include：The first control valve of cement mortar 3, the
One end is connected with cement mortar holding vessel 2, and the first end of the second control valve of cement mortar 4 respectively, and the second end is connected with the 3rd annular space 42；
The second control valve of cement mortar 4, first end is also connected with cement mortar holding vessel 2, and the second end is connected with the second annular space 41；Drilling fluid
One control valve 13, first end is connected with the second annular space 41, the second end respectively with the end of the second control valve of drilling fluid 14 second, drilling fluid
The end of 3rd control valve 22 second, the end of the 4th control valve of drilling fluid 24 second and drilling fluid holding vessel 23 are connected；Drilling fluid second is controlled
Valve 14 processed, first end is connected with the 3rd annular space 42, and the second end is also controlled with the end of the 3rd control valve of drilling fluid 22 second, drilling fluid the 4th
The end of valve 24 second processed and drilling fluid holding vessel 23 are connected；The control valve 22 of drilling fluid the 3rd, first end is connected with the first annular space 40, the
Two ends are also connected with the end of the 4th control valve of drilling fluid 24 second and drilling fluid holding vessel 23；The control valve 24 of drilling fluid the 4th, first
End is connected with the inside of oil pipe 27, and the second end is also connected with drilling fluid holding vessel 23；Interior pressure control valve 25, first end and interior press pump 26
Connection, the second end respectively with inside oil pipe 27, and the first end of the 4th control valve of drilling fluid 24 connection；Confined pressure valve 30, first end with
Automatic confined pressure pump 31 is connected, and the second end is connected with confined pressure chamber 29.
As shown in figure 1, annular space trap Fluid pressure rise experimental provision can also include：Positioned at the upstream of upper kettle cover 16
Road；Positioned at the lower flow channel of lower kettle seat 21；Upper runner is connected with lower flow channel with condenser pump 19, and condenser pump 19 is used to convey condensed water
Cool down kettle；The first control valve of condenser pump 18, first end is connected with upper runner, and the second end is connected with condenser pump 19；Condenser pump
Two control valves 20, first end is connected with condenser pump 19, and the second end is connected with lower flow channel., can by cooling down the condenser pump 19 of kettle
To prevent kettle temperature is too high from causing O-ring seal to fail.
In embodiment, the clamper for accommodating kettle can also be included, clamper is included on the outside of clamper shell 17, clamper
Provided with clamper attemperator, for reducing annular space trap Fluid pressure rise experimental provision and extraneous heat exchange, reduce and miss
Difference.
Fig. 2 is the knot that the utility model embodiment middle ring barren trap Fluid pressure raises experimental provision one of which embodiment
Composition.As shown in Fig. 2 the upper kettle cover 16 in annular space trap Fluid pressure rise experimental provision can pass through hinge 36 and hoisting rope
Tool 37 is connected；Lifting slings 37 is connected by support 38 with testing stand 39, for moving kettle, makes the movement of kettle more square
Just.
Specific work process of the present utility model is：
1. drilling fluid holding vessel 23 injects drilling fluid to the inside of oil pipe 27 and the first annular space 40.
2. cement mortar holding vessel 2 injects cement mortar to the second annular space 41 and the 3rd annular space 42.
3. heating rod 9 heats drilling fluid to design temperature.
4. automatic confined pressure pump 31 applies setting confined pressure to surface pipe 34, interior press pump 26 applies in setting to inside oil pipe 27
Pressure.
5. setting maintenance annular space trap Fluid pressure raises the very first time of experimental provision, until the water that cement mortar is cemented to
Mud ring is cemented to an entirety with surface pipe 34, intermediate casing 33 and production casing 28.
Drilling fluid temperature is made to be down to normal temperature 6. closing heating rod 9.
7. drilling fluid holding vessel 23 fills drilling fluid into the remaining space of the second annular space 41 and the 3rd annular space 42, open and add
Hot pin 9 heats drilling fluid to design temperature.
8. during heating drilling fluid to the design temperature of heating rod 9, record the confined pressure number from confined pressure sensor 32
According to, multiple temperature datas from multiple temperature sensors 5, the internal pressure data from interior pressure sensor 11 and from multiple
Multiple annular fluid pressure datas of annular fluid pressure sensor 10.
In embodiment, sleeve combination can be dismantled, independent assortment.Pass through oil pipe 27, production casing 28, the and of intermediate casing 33
The combination of surface pipe 34 can obtain the pressure rise situation of the different independent trap fluids of annular space.For example, can be according to difference
Sleeve combination perform following three kinds of different experiments, it is as follows：
First, the first annular space trap Fluid pressure rise is tested, and specific work process is：
21. oil pipe 27 and production casing 28 are inserted in kettle.
22. drilling fluid holding vessel 23 fills drilling fluid to the inside of oil pipe 27 and the first annular space 40.
23. automatic confined pressure pump 31 applies setting confined pressure to production casing 28, interior press pump 26 is set to application inside oil pipe 27
Internal pressure.
24. opening heating rod 9 heats drilling fluid to design temperature, drilling fluid is heated to the mistake of design temperature in heating rod 9
Cheng Zhong, gathers the confined pressure data from confined pressure sensor 32, multiple temperature datas from multiple temperature sensors 5, from interior
The internal pressure data of pressure sensor 11 and multiple annular fluid pressure datas from multiple annular fluid pressure sensors 10.
When it is implemented, oil pipe 27 and production casing 28 can be assembled in the following way：
Thin layer butter is smeared in the outer wall of production casing 28,21 top surfaces of lower kettle seat, the inwall of production casing 28, with O-shaped sealing rubber
Groove at rubber sealing intermediate casing 33.Oil pipe 27, production casing 28 are inserted in 21 corresponding grooves of lower kettle seat, with upper kettle
Lid 16 coordinates assembling.
Wherein, the proportioning of each composition of drilling fluid can need any adjustment according to experiment, can be by changing drilling fluid
Type carrys out influence of the drilling fluid of test different types to annular space trap Fluid pressure.
In embodiment, drilling fluid can be filled in the following way：Open the control valve 22 of drilling fluid the 3rd and drilling fluid the
Four control valves 24, drilling fluid, drilling fluid to be had are injected by drilling fluid holding vessel 23 into the inside of oil pipe 27 and the first annular space 40
Show that the drilling fluid in the inside of oil pipe 27 and the first annular space 40 is already filled with when being overflowed from liquid storage spilling pipeline, close drilling fluid
3rd control valve 22 and the control valve 24 of drilling fluid the 4th.
The temperature data that heating rod 9 is heated to the temperature sensor 5 in oil pipe 27 can be 122 DEG C, to simulated formation
Interior fluid temperature (F.T.)；Open the confined pressure that confined pressure valve 30 makes automatic confined pressure pump 31 apply 60Mpa to production casing 28；Open internal pressure control
Valve 25 makes interior press pump 26 to the internal pressure of application 20MPa inside oil pipe 27.
To sum up, raised and tested by the first annular space trap Fluid pressure, temperature change can be obtained in the first annular space to not
With the influence result of annular space trap Fluid pressure., it is necessary to first close after the rise experiment of the first annular space trap Fluid pressure terminates
Interior pressure control valve 25 closes interior press pump 26, closes confined pressure valve 30 to close automatic confined pressure pump 31, turns off heater 9 to kettle
Body cools, after kettle is down to normal temperature, open the control valve 22 of drilling fluid the 3rd and the control valve 24 of drilling fluid the 4th carry out pressure release and
Discharge opeing.
2nd, the first annular space and the rise of the second annular space trap Fluid pressure are tested, and specific work process is：
31. oil pipe 27, intermediate casing 33 and production casing 28 are inserted in kettle.
32. drilling fluid holding vessel 23 fills drilling fluid to the inside of oil pipe 27 and the first annular space 40.
33. cement mortar holding vessel 2 injects cement mortar to the second annular space 41.
34. heating rod 9 heats drilling fluid to design temperature.
35. automatic confined pressure pump 31 applies setting confined pressure to intermediate casing 33, interior press pump 26 is set to application inside oil pipe 27
Internal pressure.
36. setting maintenance annular space trap Fluid pressure raises the very first time of experimental provision, until what cement mortar was cemented to
Cement sheath is cemented to an entirety with production casing 28, intermediate casing 33.
Drilling fluid temperature is made to be down to normal temperature 37. closing heating rod 9.
38. drilling fluid holding vessel 23 fills drilling fluid into the remaining space of the second annular space 41, open the heating of heating rod 9 and bore
Well liquid is to design temperature.
39. during heating drilling fluid to the design temperature of heating rod 9, gather the confined pressure number from confined pressure sensor 32
According to, multiple temperature datas from multiple temperature sensors 5, the internal pressure data from interior pressure sensor 11 and from multiple
Multiple annular fluid pressure datas of annular fluid pressure sensor 10.
When it is implemented, oil pipe 27, intermediate casing 33 and production casing 28 can be assembled in the following way：
It is yellow that thin layer is smeared in the inside and outside wall of production casing 28,21 top surfaces of lower kettle seat, the outer wall of oil pipe 27 and the inwall of intermediate casing 33
Oil, the groove at production casing 28 is sealed with O-shaped sealing rubber ring.Oil pipe 27, intermediate casing 33 and production casing 28 are inserted
In 21 corresponding grooves of lower kettle seat, coordinate with upper kettle cover 16 and assemble.
Wherein, the proportioning of drilling fluid and each composition of cement mortar can need any adjustment according to experiment, can be by changing
The type of drilling fluid and the type of cement mortar come the drilling fluid and cement mortar of test different types to annular space trap Fluid pressure
Influence.
In embodiment, drilling fluid can be filled in the following way：Open the control valve 22 of drilling fluid the 3rd and drilling fluid the
Four control valves 24, drilling fluid is injected by drilling fluid holding vessel 23 to the inside of oil pipe 27 and the first annular space 40, drilling fluid to be had from
Liquid storage, which overflows, shows that the drilling fluid of the inside of oil pipe 27 and the first annular space 40 is already filled with when being overflowed in pipeline, close drilling fluid the 3rd
Control valve 22 and the control valve 24 of drilling fluid the 4th.
In embodiment, cement mortar can be injected in the following way：The second control valve of cement mortar 4 is opened, passes through cement mortar
Holding vessel 2 is injected after cement mortar to the second annular space 41, closes the second control valve of cement mortar 4.Different proportion in second annular space 41
Cement mortar has different cement mortars and returns height.By changing the volume of cement mortar in the second annular space 41, grout volume pair is obtained
The influence result of first annular space and the second annular space trap Fluid pressure.
When it is implemented, the temperature data that heating rod 9 is heated to the temperature sensor 5 in oil pipe 27 can be 122 DEG C, use
With simulated formation temperature；Open the confined pressure that confined pressure valve 30 makes automatic confined pressure pump 31 apply 60Mpa to intermediate casing 33；Open internal pressure
Control valve 25 makes interior press pump 26 to the internal pressure of application 20MPa inside oil pipe 28.
To sum up, tested by the first annular space and the rise of the second annular space trap Fluid pressure, the He of the first annular space 40 can be obtained
The influence result of temperature change and grout volume to different annular space trap Fluid pressures in second annular space 41.In the first annular space and
, it is necessary to first close interior pressure control valve 25 to close interior press pump 26 after the rise experiment of second annular space trap Fluid pressure terminates, close
Confined pressure valve 30 closes automatic confined pressure pump 31, turns off heater 9 and kettle is cooled, and after kettle is down to normal temperature, opens and bores
The first control valve of well liquid 13, the control valve 22 of drilling fluid the 3rd and the control valve 24 of drilling fluid the 4th carry out pressure release and discharge opeing.
3rd, the first annular space, the second annular space and the rise experiment of the 3rd annular space trap Fluid pressure, including：
41. surface pipe 34, intermediate casing 33, production casing 28 and oil pipe 27 are inserted in kettle.
42. drilling fluid holding vessel 23 fills drilling fluid to the inside of oil pipe 27 and the first annular space 40.
43. cement mortar holding vessel 2 injects cement mortar to the second annular space 41 and the 3rd annular space 42.
44. heating rod 9 heats drilling fluid to design temperature.
45. automatic confined pressure pump 31 applies setting confined pressure to surface pipe 34, interior press pump 26 is set to application inside oil pipe 27
Internal pressure.
46. setting maintenance annular space trap Fluid pressure raises the very first time of experimental provision, until what cement mortar was cemented to
Cement sheath is cemented to an entirety with surface pipe 34, intermediate casing 33 and production casing 28.
Drilling fluid temperature is made to be down to normal temperature 47. closing heating rod 9.
48. drilling fluid holding vessel 23 fills drilling fluid into the remaining space of the second annular space 41 and the 3rd annular space 42, open
Heating rod 9 heats drilling fluid to design temperature.
49. during heating drilling fluid to the design temperature of heating rod 9, gather the confined pressure number from confined pressure sensor 32
According to, multiple temperature datas from multiple temperature sensors 5, the internal pressure data from interior pressure sensor 11 and from multiple
Multiple annular fluid pressure datas of annular fluid pressure sensor 10.
When it is implemented, surface pipe 34, intermediate casing 33, production casing 28 and oil pipe can be assembled in the following way
27：
Smear thin in the outer wall of production casing 28,21 top surfaces of lower kettle seat, the inside and outside wall of intermediate casing 33 and the inwall of surface pipe 34
Layer butter.Surface pipe 34, intermediate casing 33, production casing 28 and oil pipe 27 are inserted in 21 corresponding grooves of lower kettle seat, with
Upper kettle cover 16 coordinates assembling.
Wherein, the proportioning of drilling fluid and each composition of cement mortar can need any adjustment according to experiment, can be by changing
The type of drilling fluid and the type of cement mortar come the drilling fluid and cement mortar of test different types to annular space trap Fluid pressure
Influence.
In embodiment, drilling fluid can be filled in the following way：Open the control valve 22 of drilling fluid the 3rd and drilling fluid the
Four control valves 24, by drilling fluid holding vessel 23 to injecting drilling fluid inside the first annular space 40 and oil pipe 27, drilling fluid to be had from
Liquid storage overflows shows that the drilling fluid inside the first annular space 40 and oil pipe 27 is already filled with when being overflowed in pipeline, closes drilling fluid the 3rd
Control valve 22 and the control valve 24 of drilling fluid the 4th.
In embodiment, cement mortar can be injected in the following way：Open the first control valve of cement mortar 3 and cement mortar second
Control valve 4, is injected after cement mortar to the second annular space 41 and the 3rd annular space 42 by cement mortar holding vessel 2, closes cement mortar first
Control valve 3 and the second control valve of cement mortar 4.The cement mortar of different proportion has different cement mortars and returns height in each annular space.Pass through
Change the volume of cement mortar in annular space, obtain influence result of the grout volume to polycyclic barren trap Fluid pressure.
When it is implemented, the temperature data that heating rod 9 is heated to the temperature sensor 5 in oil pipe 27 can be 122 DEG C, use
With surface pipe temperature；Open the confined pressure that confined pressure valve 30 makes automatic confined pressure pump 31 apply 60Mpa to surface pipe 34；Open internal pressure
Control valve 25 makes interior press pump 26 to the internal pressure of application 20MPa inside oil pipe 27.
To sum up, raised and tested by polycyclic barren trap Fluid pressure, the first annular space 40, the second annular space 41 and the can be obtained
The influence result of temperature change and grout volume to different annular space trap Fluid pressures in three annular spaces 42.In the first annular space,
Two annular spaces and the rise experiment of the 3rd annular space trap Fluid pressure terminate rear, it is necessary to first close interior pressure control valve 25 to close interior press pump
26, close confined pressure valve 30 to close automatic confined pressure pump 31, turn off heater 9 and kettle is cooled, after kettle is down to normal temperature,
The first control valve of drilling fluid 13, the second control valve of drilling fluid 14, the control valve 22 of drilling fluid the 3rd and drilling fluid the 4th is opened to control
Valve 24 carries out pressure release and discharge opeing.
In embodiment, can by change each annular space temperature difference, cement slurry type and volume and drilling fluid types and
Volume studies influence of the above-mentioned parameter to different annular space trap Fluid pressures, is reduced the optimal of annular space trap Fluid pressure
Combination.It can also obtain annular pressure by the total junction temperature of above-mentioned experimental data to the elevated affecting laws of annular pressure and reach
Temperature during critical value is used as job safety temperature.Because serious change, institute can occur for the surface roughness of sleeve pipe after the test
Experimental provision is raised as the formula that recycles using annular space trap Fluid pressure, sleeve pipe can be constantly updated.
The key technical indexes of the present utility model is as follows：
1) experimental temperature：- 220 DEG C of normal temperature；
2) internal pressure：0-17Mpa；
3) confined pressure：0-60Mpa；
4) tubing size：3.5 inches, wall thickness 7.36mm, length 500mm；
5) production casing size：7 inches, wall thickness 8.05mm, length 500mm；
6) protective casing size：9.625 inches, wall thickness 9.21mm, length 500mm；
7) surface pipe size：13.375 inches, wall thickness 12.06mm, length 500mm；
8) pressure sensor：The range of confined pressure sensor 32 and annular fluid pressure sensor 10 is 70MPa, internal pressure sensing
The range of device 11 is 20MPa；Sensor sensitivity is 0.27%FS；
9) sleeve surface roughness：0.2.
Wherein, normal temperature can be 25 DEG C.
To sum up, the annular space trap Fluid pressure rise experimental provision in the utility model by drilling fluid holding vessel to each set
Drilling fluid is injected in pipe, cement mortar simulated formation geology ring is injected to the second annular space and the 3rd annular space by cement mortar holding vessel
Border, heats drilling fluid to design temperature, by interior press pump to application setting internal pressure inside oil pipe, by enclosing automatically by heating rod
Press pump applies setting confined pressure to surface pipe, passes through confined pressure sensor, temperature sensor, interior pressure sensor and annular fluid pressure
Sensor carries out data acquisition, so as to obtain grout volume and each annular space temperature change to different annular space trap Fluid pressures
Influence result.The utility model embodiment can also cool down kettle by condenser pump, prevent kettle temperature is too high from causing O-shaped sealing
Circle failure.
Particular embodiments described above, has carried out entering one to the purpose of this utility model, technical scheme and beneficial effect
Step is described in detail, be should be understood that and be the foregoing is only specific embodiment of the utility model, is not used to limit this
The protection domain of utility model, it is all within spirit of the present utility model and principle, any modification for being made, equivalent substitution, change
Enter, should be included within protection domain of the present utility model.
Claims (7)
1. a kind of annular space trap Fluid pressure raises experimental provision, it is characterised in that including：
There are multiple sleeve pipes inside kettle, kettle, including：
Confined pressure chamber (29) is constituted between surface pipe (34), with clamper shell (17)；
The intermediate casing (33) being coaxially nested positioned at surface pipe (34) inside, with surface pipe (34), and and surface pipe
(34) the 3rd annular space (42) is formed between；
The production casing (28) being coaxially nested positioned at intermediate casing (33) inside, with intermediate casing (33), and and intermediate casing
(33) the second annular space (41) is formed between；
Positioned at production casing (28) is internal, oil pipe (27) that is coaxially being nested with production casing (28), and with production casing (28) it
Between form the first annular space (40)；
Annular space trap Fluid pressure rise experimental provision also includes：
Drilling fluid holding vessel (23), for oil pipe (27) inside, the first annular space (40), the second annular space (41) and the 3rd annular space
(42) drilling fluid is injected；
Cement mortar holding vessel (2), for injecting cement mortar to the second annular space (41) and the 3rd annular space (42)；
Heating rod (9), is lowered into production casing (28) inside, for heating drilling fluid to design temperature；
The automatic confined pressure pump (31) being connected with confined pressure chamber (29), for applying setting confined pressure to surface pipe (34)；
Confined pressure sensor (32) between confined pressure chamber (29) and automatic confined pressure pump (31), for gathering confined pressure data；
The interior press pump (26) being connected with oil pipe (27) inside, for setting internal pressure to application inside oil pipe (27)；
Be inserted with temperature sensor (5) and interior pressure sensor (11) inside oil pipe (27), the first annular space (40), the second annular space (41) and
3rd annular space (42) is inserted with temperature sensor (5) and annular fluid pressure sensor (10), and temperature sensor (5) is used to gather
Temperature data, interior pressure sensor (11) is used to gather internal pressure data, and annular fluid pressure sensor (10) is used to gather Annular cutting
Body pressure data.
2. annular space trap Fluid pressure according to claim 1 raises experimental provision, it is characterised in that also include：
Respectively with heating rod (9), automatic confined pressure pump (31), interior press pump (26), confined pressure sensor (32), multiple temperature sensors
(5), interior pressure sensor (11), and the control device (1) that multiple annular fluid pressure sensors (10) are connected, for controlling to add
Hot pin (9) heating drilling fluid, the automatic confined pressure pump (31) of control apply press pump (26) in setting confined pressure, control to surface pipe (34)
Apply setting internal pressure, confined pressure data of the collection from confined pressure sensor (32) inside to oil pipe (27), from multiple TEMPs
Multiple temperature datas of device (5), the internal pressure data from interior pressure sensor (11) and from multiple annular fluid pressure sensings
Multiple annular fluid pressure datas of device (10).
3. annular space trap Fluid pressure according to claim 1 raises experimental provision, it is characterised in that also include：
The control valve of cement mortar first (3), first end respectively with cement mortar holding vessel (2), and the second control valve of cement mortar (4) first
End connection, the second end is connected with the 3rd annular space (42)；
The control valve of cement mortar second (4), first end is also connected with cement mortar holding vessel (2), and the second end connects with the second annular space (41)
Connect；
The control valve of drilling fluid first (13), first end is connected with the second annular space (41), and the second end is controlled with drilling fluid second respectively
The end of valve (14) second, the end of the 3rd control valve of drilling fluid (22) second, the end of the 4th control valve of drilling fluid (24) second and drilling fluid storage
Deposit tank (23) connection；
The control valve of drilling fluid second (14), first end is connected with the 3rd annular space (42), the second end also with the control valve of drilling fluid the 3rd
(22) second ends, the end of the 4th control valve of drilling fluid (24) second and drilling fluid holding vessel (23) connection；
The control valve (22) of drilling fluid the 3rd, first end is connected with the first annular space (40), the second end also with the control valve of drilling fluid the 4th
(24) second ends and drilling fluid holding vessel (23) connection；
Be connected inside the control valve (24) of drilling fluid the 4th, first end and oil pipe (27), the second end also with drilling fluid holding vessel (23)
Connection；
Interior pressure control valve (25), first end is connected with interior press pump (26), and the second end is internal with oil pipe (27) respectively, and drilling fluid the
Four control valves (24) first end is connected；
Confined pressure valve (30), first end is connected with automatic confined pressure pump (31), and the second end is connected with confined pressure chamber (29).
4. annular space trap Fluid pressure according to claim 1 raises experimental provision, it is characterised in that
Kettle includes upper kettle cover (16) and lower kettle seat (21)；
Have multiple grooves facing each other on upper kettle cover (16) and lower kettle seat (21), for insert respectively surface pipe (34),
Intermediate casing (33), production casing (28) and oil pipe (27).
5. annular space trap Fluid pressure according to claim 4 raises experimental provision, it is characterised in that also include：
Multiple sealing rings, for sealing multiple grooves.
6. annular space trap Fluid pressure according to claim 4 raises experimental provision, it is characterised in that also include：
Upper runner positioned at upper kettle cover (16)；
Positioned at the lower flow channel of lower kettle seat (21)；
Upper runner is connected with lower flow channel with condenser pump (19), and condenser pump (19) is used to convey condensed water cooling kettle；
The control valve of condenser pump first (18), first end is connected with upper runner, and the second end is connected with condenser pump (19)；
The control valve of condenser pump second (20), first end is connected with condenser pump (19), and the second end is connected with lower flow channel.
7. annular space trap Fluid pressure according to claim 4 raises experimental provision, it is characterised in that also include：
Upper kettle cover (16) is connected by hinge (36) with Lifting slings (37)；
Lifting slings (37) is connected by support (38) with testing stand (39), for moving kettle.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720024185.9U CN206386114U (en) | 2017-01-10 | 2017-01-10 | A kind of annular space trap Fluid pressure raises experimental provision |
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| Application Number | Priority Date | Filing Date | Title |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593416B (en) * | 2017-01-10 | 2018-03-20 | 中国石油大学(北京) | A kind of annular space trap Fluid pressure rise experimental provision and method |
| CN108533248A (en) * | 2018-05-25 | 2018-09-14 | 中国石油大学(北京) | Casing annulus pressure simulation device |
-
2017
- 2017-01-10 CN CN201720024185.9U patent/CN206386114U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593416B (en) * | 2017-01-10 | 2018-03-20 | 中国石油大学(北京) | A kind of annular space trap Fluid pressure rise experimental provision and method |
| CN108533248A (en) * | 2018-05-25 | 2018-09-14 | 中国石油大学(北京) | Casing annulus pressure simulation device |
| CN108533248B (en) * | 2018-05-25 | 2024-01-12 | 中国石油大学(北京) | Casing annulus pressure simulator |
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