CN104895557A - An intelligent well completion simulation system production fluid simulator - Google Patents
An intelligent well completion simulation system production fluid simulator Download PDFInfo
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- CN104895557A CN104895557A CN201510134272.5A CN201510134272A CN104895557A CN 104895557 A CN104895557 A CN 104895557A CN 201510134272 A CN201510134272 A CN 201510134272A CN 104895557 A CN104895557 A CN 104895557A
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Abstract
The invention relates to an intelligent well completion simulation system production fluid simulator comprising a sleeve, a throttling valve sleeve, a sliding sleeve, an adjusting screw and a connector. The sleeve, the throttling valve sleeve and the sliding sleeve are distributed from outside to inside successively. The connector, the adjusting screw and the throttling valve sleeve are arranged on the outer side of the sliding sleeve from left to right successively in a sleeving manner. The simulator can better simulate the process of control of the throttling valve sleeve to the pressure and flow of fluid.
Description
Technical field
The present invention relates to Intelligent Well Completion field, particularly a kind of intelligent well completion simulation system produces fluid simulation device.
Background technology
Intelligent Well Completion is the international cutting edge technology that petroleum works field just grows up nearly ten years.Unify and produce fluid control systems by being arranged in production of hydrocarbons well or Injection Well real-time monitoring system, the data transmission system that can obtain down-hole oil gas production information (as pressure, temperature, flow) and form.Intelligent Well Completion can carry out reservoir management, downhole production information gathering and transmission, the occurrence of real-time analysis down-hole and oil reservoir occurrence in real time, obtaining overall completion tubular column creation data data when not needing manual intervention.Compared with conventional well, Intelligent Well Completion can carry out remote monitoring to each oil reservoir or branch, casing programme reprovision can be carried out according to oil well production situation and regulate and control production profile, independently can control influx or the injection rate of each layer or branch fluid, natural energy exploitation can be made full use of, effectively can control interlayer interference, postpone water breakthrough and suppress moisture content rising etc., and then regulate the Production development of oil reservoir, realize real-time control and the optimizing exploitation of oil reservoir, oil field ultimate recovery is at utmost improved while reducing operating cost and production risk to greatest extent, Intelligent Well Completion is just becoming the focus that domestic and international oil play is paid close attention to.
The research and apply of Intelligent Well Completion has carried out for many years abroad, external existing Duo Jia geophysical service company develops ripe intelligent completion system, at multiple seas such as Na Kika oil field, GOM oil field, Ecuador oil field, Snorre oil field and onshore oil field, thousands of cover intelligent completion system is installed, has been applied in horizontal well, extended reach well, gas well, outlying well and multilayer producing well and water injection well.By adjust flux control valve (Inflow Control Valve, ICV) optimize each zone production of distribution, while reducing well number, improve well yield, postpone water enchroachment (invasion), improve floood conformance efficiency and recovery ratio, solve the cone caused due to heterogeneous reservoir and enter.Realize increasing crude output to greatest extent, reduce ground moisture content, avoid channelling, remain on the object that more than bubble point pressure produces.Facts have proved that the Production development of intelligent completion system is all much better than conventional well, and greatly can accelerate the exploitation rate of oil reservoir, improve the ultimate recovery in oil field.
Along with the exploration and development of the special oil and gas pools such as China desert, deep-sea, border, reservoir gradually based in hypotonic, the multilayer system oil reservoir of growing, the complex structural wells such as multicompletion well, horizontal well, Multilateral Wells have become China and have developed this kind of oil reservoir, improve the Main Means of well yield and ultimate recovery.But, because LOW PERMEABILITY RESERVOIR non-homogeneity in China is strong, when adopting conventional multilayer commingled producing well, horizontal well, Multilateral Wells to produce, usually following problem can be faced:
1. serious interlayer interference in pit shaft, well yield is low;
2. the easy water enchroachment (invasion) of oil reservoir, water-free oil production period is short, and individual well is with short production cycle, and oil recovery is low;
3. the conventional production logging difficulty of horizontal segment, cost is high, and the off-time is long;
4. borehole size is less, down-hole limited space, conventional mechanical water blockoff and de-plugging operational difficulty.
Because routine techniques cannot process in time to above-mentioned actual production problem, cause multicompletion well, horizontal well, Multilateral Wells with short production cycle, individual well utilization rate is low, significantly reduce oil reservoir ultimate recovery, cause huge economic loss, conventional productive function is challenged, tackles the chief motivation that these challenges are then development China Intelligent Well Completions.
At present, China's Intelligent Well Completion is at the early-stage, is also in the tracking to external Intelligent Well Completion and local advanced in technology experimental stage.In addition, the international corporation having Intelligent Well Completion abroad carries out blockade on new techniques to intelligent well completion key technology, only provides equipment and service, does not provide technology.External a set of intelligent completion system be 200 ~ 5,000,000 dollars not etc., this must raise cost of production, and this does not meet the fundamental realities of the country of China.Although, Oil Exploration in China developmental research institute adopts and introduces the external crucial downhole tool of Intelligent Well Completion of part and the mode of domestic supporting basic components, 2 mouthfuls of easy intelligent well completion test wells are completed, the domestic condition tentatively possessing research and development Intelligent Well Completion hardware.But, owing to there is no corresponding supporting Intelligent Well Completion theory support, and the conventional theoretical analysis not being suitable for the intelligent completion system that downhole flow control valve is housed of recovering the oil.Therefore, the oil nozzle aperture to down-hole ICV valve cannot combine and regulate according to measured down-hole real-time pressure and temperature data, the various advantages of Intelligent Well Completion are not fully played.The theoretical research of Intelligent Well Completion has become the bottleneck of China's development Intelligent Well Completion, seriously governs popularization and the development of China's Intelligent Well Completion.For this reason, break the blocked styate of external Intelligent Well Completion, the Intelligent Well Completion theoretical research carrying out being applicable to domestic oil-gas reservoir feature is imperative, and it will meet the industrial active demand of domestic petroleum, advances the application & development of Intelligent Well Completion in China oil field.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of intelligent well completion simulation system and produces fluid simulation device, can be good at the process simulating throttling valve pocket control flow check body pressure versus flow.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of intelligent well completion simulation system produces fluid simulation device, and its innovative point is: comprise sleeve, throttling valve pocket, sliding sleeve, adjusting screw and connector;
Described sleeve, throttling valve pocket and sliding sleeve ecto-entad distribute successively, and connector, adjusting screw and throttling valve pocket are sleeved on the outside of sliding sleeve from left to right successively;
Described sleeve is a barrel-shaped structure, the cylindrical shell of sleeve is provided with ten fluid injecting holes of vertical interlaced distribution, at horizontal level, an annular fluid measuring point A is also installed simultaneously, inside wall in the left and right sides of sleeve is threaded respectively with between the outer wall of left and right sleeve plug, and is formed by sealing ring between sleeve and left and right sleeve plug and seal;
Described throttling valve pocket is a tubular structure, the cavity holding fluid storage is left between throttling valve pocket and sleeve, the lateral wall at the two ends, left and right of throttling valve pocket respectively with a left side, be threaded between the inwall of right sleeve plug, and formed by sealing ring between throttling valve pocket and right sleeve plug and seal, at the horizontal level of the cylindrical shell of throttling valve pocket, one annular fluid measuring point B is installed, the cavity holding sliding sleeve and be free to slide is processed with in the inner side of throttling valve pocket, on the outer wall of throttling valve pocket, symmetry has two Slotted bores be connected with inner side cavity extended along throttling valve pocket long axis direction,
Described sliding sleeve is a tubular structure, six road sealed grooves are respectively had at the two ends of sliding sleeve, the throttle bore of different size is mixed between described sliding sleeve and the Slotted bores of throttling valve pocket, and form clearance seal between the cavity of throttling valve pocket, the lateral wall of sliding sleeve is also carved with a reference graduation, on sliding sleeve, also there is a locating hole simultaneously;
The two ends of described adjusting screw are threaded respectively with between left sleeve plug, connector, adjusting screw also has the adjustable ring of a threaded engagement with it, one end of adjustable ring is provided with the alignment pin that a sliding sleeve locating hole matches, and the symmetrical elongated slot having several and hold alignment pin slip on adjusting screw, this elongated slot extends along the long axis direction of adjusting screw, elongated slot is also processed with scale, described alignment pin can move horizontally along elongated slot along with the rotation of adjustable ring, and alignment pin can drive sliding sleeve to move horizontally after embedding locating hole;
Described connector is a tubular structure, has the cavity that an appearance sliding sleeve is free to slide, be threaded between one end of the inside wall of connector and the outer wall of adjusting screw in the inner side of connector.
Further, the external diameter of described sleeve is 177.8mm, latus rectum is between 147-166mm, length >=850mm, the cylindrical shell of sleeve is withstand voltage is 5MPa, and the spacing of fluid injecting hole is 100mm, DN is φ 20mm, DN >=the 4mm of annular fluid measuring point A, the sealing load >=5MPa between sleeve and left and right sleeve plug, what have DN >=4mm at left sleeve plug passes through through hole.
Further, the external diameter of described throttling valve pocket is 100mm, and minimum diameter is 72mm, length >=750mm, withstand voltage is 5MPa, the DN >=4mm of annular fluid measuring point B, sealing load >=5MPa between throttling valve pocket and left and right sleeve plug, the bore φ of the cavity inside throttling valve pocket is 85.025mm, fineness≤0.4, inside cavities face, cavity cylindricity 0.004, straightness accuracy 0.03, axiality 0.03, end face squareness 0.04, throttling valve pocket remaining surface fineness is 0.8.
Further, described sliding sleeve external diameter is 85.025mm, and internal diameter is 72mm, length >=1665mm, withstand voltage is 5MPa, finish≤0.4 of sliding sleeve surface and both ends of the surface, the verticality 0.04 of sliding sleeve end face, sliding sleeve axiality 0.03, cylindricity 0.007, straightness accuracy 0.03.
Further, external diameter >=the 116mm of described adjusting screw, internal diameter is 86mm, length >=820mm, withstand voltage is 5MPa, external diameter >=the 140mm of adjustable ring, internal diameter 109mm, length >=80mm, on adjusting screw, the number of institute's cutting elongated groove is the integer of >=2, the length of elongated slot is 610mm, and width is 10mm, and the scale precision of the scale on adjusting screw is 1mm.
Further, external diameter >=the 120mm of described connector, minimum interior warp is 72mm, length >=880mm, withstand voltage is 5MPa, the bore φ of the cavity inside connector is 85.025mm, fineness≤0.4, inside cavities face, cavity cylindricity 0.004, straightness accuracy 0.03, axiality 0.03, end face squareness 0.04, connector remaining surface fineness is 0.8.
Further, the other end of the right plug of described sleeve is threaded with current stabilization part, described current stabilization part comprises barretter, fixed head, adjustable ring and plastic optical fibre, barretter is a tubular structure, the two ends of the inwall of barretter are respectively connection short circuit, spacing and the fixed head of described adjustable ring, plastics is positioned at barretter, and the flow direction along fluid distributes successively, and is fixed by the connection short circuit at barretter two ends.
Further, the external diameter >=108mm of described barretter, minimum interior warp is 72mm, length >=430mm, and withstand voltage is 5MPa.
Further, syndeton between described adjustable ring and alignment pin is specially: be provided with a tubulose mount pad in the side of adjustable ring, this mount pad is sleeved on outside sliding sleeve, the cross section shape in T shape of described mount pad, there is at the inwall of mount pad the hole of an appearance alignment pin embedding, being connected by being arranged at both connecting rings in outside between adjustable ring with mount pad, being threaded between described connecting ring and the lateral wall of adjustable ring, there is a T-slot matched with mount pad in connecting ring.
Further, be also provided with one between described adjustable ring and connecting ring and prevent adjustable ring and connecting ring spacer pin in relative rotation.
The invention has the advantages that: simulator of the present invention operationally, fluid flows in the cavity between throttling valve pocket and sleeve from the fluid injecting hole of sleeve, and detect by the annular fluid measuring point A be arranged on sleeve, fluid in cavity between throttling valve pocket and sleeve can enter in throttling valve pocket from mixing between sliding sleeve and the Slotted bores of throttling valve pocket throttle bore, and the aperture of throttle bore between sliding sleeve and throttling valve pocket Slotted bores is regulated by adjustable ring, thus realize the adjustment of flow, the annular fluid measuring point B simultaneously put by being arranged on choke valve detects, the process of throttling valve pocket control flow check body pressure versus flow can well be simulated by simulator of the present invention.
In addition, the data such as size, withstand voltage of the parts such as the sleeve in simulator, throttling valve pocket, sliding sleeve are reasonably designed, to guarantee the accuracy of simulator analogue data.
By setting up a current stabilization part at the side of right sleeve plug, the turbulent flow of one deck from right sleeve plug inflow can be made to become stationary flow, and the size of adjust flux can be carried out by adjustable ring.
In the present invention, by the design of spacer pin, can prevent from relatively rotating between adjustable ring and connecting ring, avoid occurring only having adjustable ring to rotate, and alignment pin cannot the phenomenon of movement together thereupon, affects the adjustment of the throttle bore formed between the Slotted bores of sliding sleeve and throttling valve pocket.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that intelligent well completion simulation system of the present invention produces fluid simulation device.
Fig. 2 is the schematic diagram that intelligent well completion simulation system of the present invention produces fluid simulation device middle sleeve.
Fig. 3 is the schematic diagram that intelligent well completion simulation system of the present invention produces left sleeve plug in fluid simulation device.
Fig. 4 is the schematic diagram that intelligent well completion simulation system of the present invention produces right sleeve plug in fluid simulation device.
Fig. 5 is the schematic diagram that intelligent well completion simulation system of the present invention produces throttling valve pocket in fluid simulation device.
Fig. 6 is the lateral view of Fig. 5.
Fig. 7 is the A-A view of Fig. 6.
Fig. 8 is the schematic diagram that intelligent well completion simulation system of the present invention produces sliding sleeve in fluid simulation device.
Fig. 9 is the B-B view of Fig. 8.
Figure 10 is the schematic diagram that intelligent well completion simulation system of the present invention produces adjusting screw in fluid simulation device.
Figure 11 is the C-C view of Figure 10.
Figure 12 is the connection diagram that intelligent well completion simulation system of the present invention produces adjustable ring and alignment pin in fluid simulation device.
Figure 13 is the schematic diagram that intelligent well completion simulation system of the present invention produces adjustable ring in fluid simulation device.
Figure 14 is the schematic diagram that intelligent well completion simulation system of the present invention produces connecting ring in fluid simulation device.
Figure 15 is the schematic diagram that intelligent well completion simulation system of the present invention produces mount pad in fluid simulation device.
Figure 16 is the schematic diagram that intelligent well completion simulation system of the present invention produces connector in fluid simulation device.
Detailed description of the invention
Schematic diagram is as shown in Figure 1 known, and intelligent well completion simulation system of the present invention is produced fluid simulation device and comprised sleeve 7, throttling valve pocket 6, sliding sleeve 2, adjusting screw 3 and connector 1.
Sleeve 7, throttling valve pocket 6 and sliding sleeve 2 ecto-entad distribute successively, and connector 1, adjusting screw 3 and throttling valve pocket 6 are sleeved on the outside of sliding sleeve 2 from left to right successively.
Schematic diagram is as shown in Figure 2 known, sleeve 7 is a barrel-shaped structure, the cylindrical shell of sleeve 7 is provided with ten fluid injecting holes 72 of vertical interlaced distribution, at horizontal level, an annular fluid measuring point A71 is also installed simultaneously, this annular fluid measuring point A71 is weldingly fixed on sleeve 7, inside wall in the left and right sides of sleeve 7 respectively with left sleeve plug 5, be threaded between the outer wall of right sleeve plug 8, left sleeve plug 5, the structure of right sleeve plug 8 is respectively as Fig. 3, shown in Fig. 4, the two ends of sleeve 7 respectively with left sleeve plug 5, sealing is formed by sealing ring between the outer wall of right sleeve plug 8, its concrete structure is: at left sleeve plug 5, the outer wall of right sleeve plug 8 all has the cannelure that an appearance sealing ring embeds, cannelure is positioned at left sleeve plug 5, the inner side of right sleeve plug 8, sealing ring embeds after this cannelure sleeve 7 and left sleeve plug 5, sealing is formed between right sleeve plug 8.
The external diameter of sleeve 7 is 177.8mm, the latus rectum of sleeve 7 is between 147-166mm, length >=the 850mm of sleeve 7, the cylindrical shell of sleeve 7 is withstand voltage is 5MPa, and the spacing between two of same line adjacent fluid injecting holes 72 is 100mm, DN is φ 20mm, DN >=the 4mm of annular fluid measuring point A71, sealing load >=5MPa between sleeve 7 and left sleeve plug 5, right sleeve plug 8, what have DN >=4mm at left sleeve plug 5 passes through through hole, and remaining geometric sense tolerance can refer to standardization of casing.
From the schematic diagram shown in Fig. 5-Fig. 7, throttling valve pocket 6 is a tubular structure, the cavity holding fluid storage is left between throttling valve pocket 6 and sleeve 7, the lateral wall at the two ends, left and right of throttling valve pocket 6 respectively with left sleeve plug 5, be threaded between the inwall of right sleeve plug 8, and formed by sealing ring between the inwall of throttling valve pocket 6 and right sleeve plug 8 and seal, its structure is specially: on the outer wall of throttling valve pocket 6, have the cannelure holding sealing ring and embed, seal being formed between throttling valve pocket 6 and right sleeve plug 8 after sealing ring embeds this cannelure, at the horizontal level of the cylindrical shell of throttling valve pocket 6, an annular fluid measuring point B61 is installed, this annular fluid measuring point B61 is weldingly fixed on throttling valve pocket 6, the cavity holding sliding sleeve and be free to slide is processed with in the inner side of throttling valve pocket 6, on the outer wall of throttling valve pocket 6, symmetry has two Slotted bores 62 be connected with the inner side cavity of throttling valve pocket 6 extended along throttling valve pocket 6 long axis direction.
The external diameter of throttling valve pocket 6 is 100mm, the minimum diameter of throttling valve pocket 6 is 72mm, length >=the 750mm of throttling valve pocket 6, the withstand voltage of throttling valve pocket 6 is 5MPa, DN >=the 4mm of annular fluid measuring point B61, throttling valve pocket 6 and left sleeve plug 5, sealing load >=5MPa between right sleeve plug 8, the bore φ of the cavity of the inner side of throttling valve pocket 6 is 85.025mm, fineness≤0.4, inside cavities face, cavity cylindricity 0.004, straightness accuracy 0.03, axiality 0.03, end face squareness 0.04, throttling valve pocket 6 remaining surface fineness is 0.8, remaining geometric sense tolerance can refer to oil pipe standard.
From the schematic diagram shown in Fig. 8, Fig. 9, sliding sleeve 2 is a tubular structure, six road sealed grooves 22 are respectively had at the two ends of sliding sleeve 2, the throttle bore of different size is mixed between sliding sleeve 2 and the Slotted bores 62 of throttling valve pocket 6, clearance seal is formed between the cavity of sliding sleeve 2 and throttling valve pocket 6, the lateral wall of sliding sleeve 2 is also carved with a reference graduation, also there is a locating hole 21 on sliding sleeve simultaneously.
The external diameter of sliding sleeve 2 is 85.025mm, the internal diameter of sliding sleeve 2 is 72mm, length >=the 1665mm of sliding sleeve 2, the withstand voltage of sliding sleeve 2 is 5MPa, the surface of sliding sleeve 2 and finish≤0.4 of both ends of the surface, the verticality 0.04 of the end face of sliding sleeve 2, the axiality 0.03 of sliding sleeve 2, cylindricity 0.007, straightness accuracy 0.03, remaining geometric sense tolerance can refer to oil pipe standard.
As Figure 10, schematic diagram shown in Figure 11 is known, the two ends of adjusting screw 3 respectively with left sleeve plug 5, be threaded between connector 1, adjusting screw 3 also has the adjustable ring 4 of a threaded engagement with it, one end of adjustable ring 4 is provided with the alignment pin 44 that the locating hole 21 on a sliding sleeve 2 matches, and the symmetrical elongated slot 31 having several and hold alignment pin slip on adjusting screw 3, this elongated slot 31 extends along the long axis direction of adjusting screw 3, elongated slot 31 is also processed with scale, alignment pin 44 can move horizontally along elongated slot 31 along with the rotation of adjustable ring 4, and alignment pin 44 can drive sliding sleeve 2 to move horizontally after embedding locating hole 21.
Schematic diagram is as shown in figure 12 known, syndeton between adjustable ring 4 and alignment pin 44 is specially: be provided with a tubulose mount pad 43 in the side of adjustable ring 4, this mount pad 43 is sleeved on outside sliding sleeve 2, the cross section shape in T shape of mount pad 43, there is at the inwall of mount pad 43 hole of appearance alignment pin 44 embedding, be connected by being arranged at both connecting rings 42 in outside between adjustable ring 4 with mount pad 43, be threaded between connecting ring 42 with the lateral wall of adjustable ring 4, there is a T-slot matched with mount pad 42 in connecting ring 42.
Between adjustable ring 4 and connecting ring 42, be also provided with one prevent adjustable ring 4 and connecting ring 42 spacer pin 42 in relative rotation.
External diameter >=the 116mm of adjusting screw 3, the internal diameter of adjusting screw 3 is 86mm, length >=the 820mm of adjusting screw 3, the withstand voltage of adjusting screw 3 is 5MPa, the external diameter >=140mm of adjustable ring 4, the internal diameter 109mm of adjustable ring 4, length >=the 80mm of adjustable ring 4, on adjusting screw 3, the number of institute's cutting elongated groove 31 is the integer of >=2, and the length of elongated slot 31 is 610mm, the width of elongated slot 31 is 10mm, and the scale precision of the scale on adjusting screw 3 is 1mm.
Described connector 1 is a tubular structure, has the cavity that an appearance sliding sleeve 2 is free to slide in the inner side of connector 1, and one end of the inside wall of connector 1 is threaded with between the outer wall of adjusting screw 3.
External diameter >=the 120mm of connector 1, the minimum interior warp of connector 1 is 72mm, the length >=880mm of connector 1, and the withstand voltage of connector 1 is 5MPa, the bore φ of the cavity of the inner side of connector 1 is 85.025mm, fineness≤0.4, inside cavities face, cavity cylindricity 0.004, straightness accuracy 0.03, axiality 0.03, end face squareness 0.04, connector 1 remaining surface fineness is 0.8, and remaining geometric sense tolerance can refer to oil pipe standard.
The other end of the right plug 8 of sleeve is threaded with current stabilization part, current stabilization part comprises barretter, fixed head, adjustable ring and plastic optical fibre, barretter is a tubular structure, the two ends of the inwall of barretter are respectively connection short circuit, spacing and the fixed head of adjustable ring, plastics is positioned at barretter, flow direction along fluid distributes successively, and is fixed by the connection short circuit at barretter two ends.
External diameter >=the 108mm of barretter, minimum interior warp is 72mm, length >=430mm, and withstand voltage is 5MPa.
The design considerations of this simulator is: Intelligent Well Completion is mainly by regulating the combination of the oil nozzle aperture on each ICV valve flow restriction valve pocket to reach pressure equalizing in oil pipe, the each stressor layer of independent control and flow, realize the object of all produce oil, the volume increase of control water layer by layer, possess the function of production logging and production performance observation.In fact the theoretical relation mainly studying the combination of oil nozzle aperture and fluid pressure and flow of Intelligent Well Completion, therefore, intelligent well completion simulation system teaching experiment platform main analog fluid enters the process in ICV valve from sleeve pipe.Because in-house laboratory investigation mainly studies the combination of ICV valve oil mouth aperture and fluid pressure and the relation of flow and the relation of moisture content, fluid viscosity and temperature, have nothing to do with static pressure, therefore, static pressure is removed, only need simulate the inside and outside control pressure reduction 0 ~ 4MPa produced of individual layer ICV valve, sleeve pipe, ICV valve flow restriction valve pocket model and connected pipes model all adopt real size and structure, can simulate domestic well yield 210m
3the production status of three interval multicompletion wells within/d, within reservoir temperature 150 DEG C, horizontal well, Multilateral Wells.Flow restriction valve pocket size and the structure of flow restriction valve pocket model and actual ICV valve are consistent, and therefore, the thermally coupled flow of flow restriction valve pocket model equivalence can become the thermally coupled flow of actual ICV valve.
This simulator is when carrying out work, the flow direction of its fluid is: first, fluid enters in the cavity between sleeve 7 and throttling valve pocket 6 from the fluid injecting hole 72 sleeve 7, now, by being arranged on annular fluid measuring point A71 on sleeve 7 to the pressure of the fluid in this cavity, the data such as temperature detect, then adjustable ring 4 is rotated, adjustable ring 4 is moved to connector 1 direction gradually along adjusting screw 3, sliding sleeve 2 can be driven to move to connector 1 direction by the effect of alignment pin 44 simultaneously, and, along with the movement of sliding sleeve 2, the Slotted bores 62 be positioned on throttling valve pocket 6 can be opened gradually, while opening, cavity inner fluid between sleeve 7 and throttling valve pocket 6 can enter into the cavity in throttling valve pocket 6, simultaneously, by being arranged on annular fluid measuring point B61 on throttling valve pocket 6 to the pressure of the fluid in the cavity in throttling valve pocket 6, the data such as temperature detect, and by regulating the movement of sliding sleeve 2, control the size of the aperture of Slotted bores 62, thus the relation of the combination of oil nozzle aperture and fluid pressure and flow can well be simulated, then the fluid in the cavity in throttling valve pocket 6 can flow into current stabilization part from right sleeve plug 8, by the design of current stabilization part, the turbulent flow flowed out in the cavity in throttling valve pocket 6 can be become stationary flow, conveniently enter in next cavity, simultaneously can by the size of the adjustable ring adjust flux in current stabilization part.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and manual just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (10)
1. intelligent well completion simulation system produces a fluid simulation device, it is characterized in that: comprise sleeve, throttling valve pocket, sliding sleeve, adjusting screw and connector;
Described sleeve, throttling valve pocket and sliding sleeve ecto-entad distribute successively, and connector, adjusting screw and throttling valve pocket are sleeved on the outside of sliding sleeve from left to right successively;
Described sleeve is a barrel-shaped structure, the cylindrical shell of sleeve is provided with ten fluid injecting holes of vertical interlaced distribution, at horizontal level, an annular fluid measuring point A is also installed simultaneously, inside wall in the left and right sides of sleeve is threaded respectively with between the outer wall of left and right sleeve plug, and is formed by sealing ring between sleeve and left and right sleeve plug and seal;
Described throttling valve pocket is a tubular structure, the cavity holding fluid storage is left between throttling valve pocket and sleeve, the lateral wall at the two ends, left and right of throttling valve pocket respectively with a left side, be threaded between the inwall of right sleeve plug, and formed by sealing ring between throttling valve pocket and right sleeve plug and seal, at the horizontal level of the cylindrical shell of throttling valve pocket, one annular fluid measuring point B is installed, the cavity holding sliding sleeve and be free to slide is processed with in the inner side of throttling valve pocket, on the outer wall of throttling valve pocket, symmetry has two Slotted bores be connected with inner side cavity extended along throttling valve pocket long axis direction,
Described sliding sleeve is a tubular structure, six road sealed grooves are respectively had at the two ends of sliding sleeve, the throttle bore of different size is mixed between described sliding sleeve and the Slotted bores of throttling valve pocket, and form clearance seal between the cavity of throttling valve pocket, the lateral wall of sliding sleeve is also carved with a reference graduation, on sliding sleeve, also there is a locating hole simultaneously;
The two ends of described adjusting screw are threaded respectively with between left sleeve plug, connector, adjusting screw also has the adjustable ring of a threaded engagement with it, one end of adjustable ring is provided with the alignment pin that a sliding sleeve locating hole matches, and the symmetrical elongated slot having several and hold alignment pin slip on adjusting screw, this elongated slot extends along the long axis direction of adjusting screw, elongated slot is also processed with scale, described alignment pin can move horizontally along elongated slot along with the rotation of adjustable ring, and alignment pin can drive sliding sleeve to move horizontally after embedding locating hole;
Described connector is a tubular structure, has the cavity that an appearance sliding sleeve is free to slide, be threaded between one end of the inside wall of connector and the outer wall of adjusting screw in the inner side of connector.
2. intelligent well completion simulation system according to claim 1 produces fluid simulation device, it is characterized in that: the external diameter of described sleeve is 177.8mm, latus rectum is between 147-166mm, length >=850mm, the cylindrical shell of sleeve is withstand voltage is 5MPa, and the spacing of fluid injecting hole is 100mm, DN is φ 20mm, DN >=the 4mm of annular fluid measuring point A, the sealing load >=5MPa between sleeve and left and right sleeve plug, what have DN >=4mm at left sleeve plug passes through through hole.
3. intelligent well completion simulation system according to claim 1 produces fluid simulation device, it is characterized in that: the external diameter of described throttling valve pocket is 100mm, minimum diameter is 72mm, length >=750mm, withstand voltage is 5MPa, DN >=the 4mm of annular fluid measuring point B, throttling valve pocket is with left, sealing load >=5MPa between right sleeve plug, the bore φ of the cavity inside throttling valve pocket is 85.025mm, fineness≤0.4, inside cavities face, cavity cylindricity 0.004, straightness accuracy 0.03, axiality 0.03, end face squareness 0.04, throttling valve pocket remaining surface fineness is 0.8.
4. intelligent well completion simulation system according to claim 1 produces fluid simulation device, it is characterized in that: described sliding sleeve external diameter is 85.025mm, internal diameter is 72mm, length >=1665mm, withstand voltage is 5MPa, finish≤0.4 of sliding sleeve surface and both ends of the surface, the verticality 0.04 of sliding sleeve end face, sliding sleeve axiality 0.03, cylindricity 0.007, straightness accuracy 0.03.
5. intelligent well completion simulation system according to claim 1 produces fluid simulation device, it is characterized in that: the external diameter >=116mm of described adjusting screw, internal diameter is 86mm, length >=820mm, withstand voltage is 5MPa, external diameter >=the 140mm of adjustable ring, internal diameter 109mm, length >=80mm, on adjusting screw, the number of institute's cutting elongated groove is the integer of >=2, the length of elongated slot is 610mm, and width is 10mm, and the scale precision of the scale on adjusting screw is 1mm.
6. intelligent well completion simulation system according to claim 1 produces fluid simulation device, it is characterized in that: the external diameter >=120mm of described connector, minimum interior warp is 72mm, length >=880mm, withstand voltage is 5MPa, the bore φ of the cavity inside connector is 85.025mm, fineness≤0.4, inside cavities face, cavity cylindricity 0.004, straightness accuracy 0.03, axiality 0.03, end face squareness 0.04, connector remaining surface fineness is 0.8.
7. intelligent well completion simulation system according to claim 1 produces fluid simulation device, it is characterized in that: the other end of the right plug of described sleeve is threaded with current stabilization part, described current stabilization part comprises barretter, fixed head, adjustable ring and plastic optical fibre, barretter is a tubular structure, the two ends of the inwall of barretter are respectively connection short circuit, spacing and the fixed head of described adjustable ring, plastics is positioned at barretter, flow direction along fluid distributes successively, and is fixed by the connection short circuit at barretter two ends.
8. intelligent well completion simulation system according to claim 8 produces fluid simulation device, and it is characterized in that: the external diameter >=108mm of described barretter, minimum interior warp is 72mm, length >=430mm, and withstand voltage is 5MPa.
9. intelligent well completion simulation system according to claim 1 produces fluid simulation device, it is characterized in that: the syndeton between described adjustable ring and alignment pin is specially: be provided with a tubulose mount pad in the side of adjustable ring, this mount pad is sleeved on outside sliding sleeve, the cross section shape in T shape of described mount pad, there is at the inwall of mount pad the hole of an appearance alignment pin embedding, be connected by being arranged at both connecting rings in outside between adjustable ring with mount pad, be threaded between described connecting ring and the lateral wall of adjustable ring, there is a T-slot matched with mount pad in connecting ring.
10. intelligent well completion simulation system according to claim 9 produces fluid simulation device, it is characterized in that: be also provided with one between described adjustable ring and connecting ring and prevent adjustable ring and connecting ring spacer pin in relative rotation.
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| CN104895557B (en) | 2017-10-20 |
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