CN205297376U - Centering guide - Google Patents
Centering guide Download PDFInfo
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- CN205297376U CN205297376U CN201521126399.4U CN201521126399U CN205297376U CN 205297376 U CN205297376 U CN 205297376U CN 201521126399 U CN201521126399 U CN 201521126399U CN 205297376 U CN205297376 U CN 205297376U
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- centralizer
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- positioning
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- 238000005259 measurement Methods 0.000 claims description 76
- 238000007373 indentation Methods 0.000 claims description 52
- 238000002347 injection Methods 0.000 abstract description 40
- 239000007924 injection Substances 0.000 abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 27
- 230000000694 effects Effects 0.000 abstract description 6
- 239000002332 oil field water Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 238000005096 rolling process Methods 0.000 description 6
- 230000035699 permeability Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 1
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Abstract
The utility model discloses a centralizer belongs to oil field water injection well appurtenance field. The centralizer includes: the centering device comprises a centering device body, rollers and a positioning shaft, wherein the centering device body is of a cylindrical structure, a rectangular through hole and a first positioning through hole are formed in the side surface of the centering device body, the axis of the rectangular through hole is perpendicular to the axis of the first positioning through hole, and the length direction of the rectangular through hole is parallel to the height direction of the centering device body; the bottom surface of the roller is provided with a second positioning through hole which is communicated along the height direction of the roller; the gyro wheel sets up in the rectangle through-hole, and the location axle passes first positioning hole and second positioning hole and with gyro wheel and centralizer body fixed connection. The utility model provides a survey and transfer the problem that the instrument can't go into the target water distributor position department in the well, reached the effect of the target water distributor position department in the well of being convenient for survey and transfer the instrument. The utility model is used for the rightting of measure and regulate the instrument.
Description
Technical field
This utility model relates to water injection well in oil fields aid field, particularly to a kind of centralizer.
Background technology
Water injection well layering water distribution refers to: enter packer under in water injection well, oil reservoir bigger for permeability contrast is separated, carry out being layered water distribution to each oil reservoir with injection well downhole flow regulator again, the water distribution quantity making the oil reservoir that permeability is higher is controlled, the water distribution quantity of the oil reservoir that permeability is relatively low is strengthened, so that each oil reservoir can play a role. Wherein, each oil reservoir can arrange an injection well downhole flow regulator being this oil reservoir water distribution, and injection well downhole flow regulator is provided with water nozzle, it is possible to by regulating the aperture of the water nozzle of the target injection well downhole flow regulator of target oil reservoir, the water distribution quantity of target oil reservoir is adjusted.
In correlation technique, it is possible to adopt the aperture of the water nozzle of measurement and adjustment instrument device adjustment injection well downhole flow regulator. specifically, measurement and adjustment instrument device is provided with locating detent and adjusting rod, cable is adopted to be connected with controlling terminal by adjusting rod, measurement and adjustment instrument device is connected with controlling terminal by cable, control terminal is arranged on outside well, then pass through the target injection well downhole flow regulator position of the target oil reservoir that measurement and adjustment instrument device is lowered in well by this cable from the inner chamber of OIH pipe, by locating detent, measurement and adjustment instrument device is fixed on target injection well downhole flow regulator, now, operated by personnel controls terminal and makes to control terminal generation adjustment signal, this adjustment signal makes adjusting rod rotate by the adjusting rod of this cable transmission to measurement and adjustment instrument device, adjusting rod rotates the active force produced and acts on the water nozzle of target injection well downhole flow regulator, the aperture of the water nozzle of target injection well downhole flow regulator is adjusted, and then the water distribution quantity of target oil reservoir is adjusted.
In realizing process of the present utility model, inventor have found that correlation technique at least there is problems in that
Enter under in well in the process of measurement and adjustment instrument device, there is force of sliding friction between measurement and adjustment instrument device and the tube wall of oil pipe, when the gradient of water injection well is bigger, the force of sliding friction between measurement and adjustment instrument device and the tube wall of oil pipe is bigger, therefore, measurement and adjustment instrument device cannot the target injection well downhole flow regulator position place of G.I.H.
Utility model content
In order to solve measurement and adjustment instrument device cannot the problem at target injection well downhole flow regulator position place of G.I.H, this utility model provides a kind of centralizer.Described technical scheme is as follows:
This utility model provides a kind of centralizer, and described centralizer includes: centralizer body, roller and locating shaft,
Described centralizer body is cylindrical-shaped structure, side is provided with rectangular through holes and the first positioning through hole, the axis of described rectangular through holes is vertical with the axis of described first positioning through hole, and the length direction of described rectangular through holes is parallel with the short transverse of described centralizer body, the length of described rectangular through holes is more than the diameter of described roller, width is more than the height of described roller, and the diameter of described roller is more than the diameter of described centralizer body;
The bottom surface of described roller is provided with along through the second positioning through hole of the short transverse of described roller;
Described roller is arranged in described rectangular through holes, and described roller is flexibly connected with described centralizer body by described locating shaft through described first positioning through hole and described second positioning through hole.
Further, described centralizer body being provided with along the through cable installing hole of the short transverse of described centralizer body, described cable installing hole does not connect with described rectangular through holes and described first positioning through hole.
Further, described centralizer also includes: ball,
The bottom surface of described roller is provided with curved indentations, and described ball is arranged in described curved indentations.
Further, each bottom surface of described roller is both provided with described curved indentations, is provided with a described ball in each described curved indentations.
Further, the number of described ball and the number of described curved indentations are all M, described M is the integer more than or equal to 1, is provided with a described ball in each described curved indentations.
Further, the number of described ball is M, described M is the even number more than or equal to 2, each bottom surface of described roller is both provided with M/2 curved indentations, and the curved indentations on two bottom surfaces of described roller is symmetrical about the transverse axis cross section of described roller, curved indentations on arbitrary bottom surface of described roller is arranged along the first circumference array, described first circumference and the concyclic heart in described arbitrary bottom surface.
Further, described curved indentations is hemispherical curved indentations, and the diameter of described curved indentations is more than the diameter of described ball, and the difference of the diameter of the diameter of described curved indentations and described ball is less than the first predetermined threshold value.
Further, the number of described roller and the number of described locating shaft are all N, described N is the integer more than or equal to 2, and the bottom surface of each roller is both provided with along through the second positioning through hole of the short transverse of described each roller, each corresponding described locating shaft of described second positioning through hole;
The side of described centralizer body be provided with N number of rectangular through holes and with described N number of rectangular through holes N number of first positioning through hole one to one, the axis of each rectangular through holes and vertical with the axis of described each rectangular through holes the first positioning through hole one to one, the length direction of each rectangular through holes is parallel with the short transverse of described centralizer body, is provided with a described roller in each rectangular through holes;
First locating shaft through the first rectangular through holes and with described first rectangular through holes the first positioning through hole one to one, first roller is flexibly connected with described centralizer body, described first rectangular through holes is any one rectangular through holes in described N number of rectangular through holes, described first roller is the roller being arranged in described first rectangular through holes, and described first locating shaft is the locating shaft corresponding with the second positioning through hole on described first roller.
Further, described N number of rectangular through holes is uniformly arranged on the side of described centralizer body, and the projection on the bottom surface of described centralizer body of the described N number of rectangular through holes is along the base circumference array arrangement of described centralizer body.
Further, described centralizer also includes: cover plate,
Described centralizer body is provided with the first cable installing hole and the second cable installing hole connected with described first cable installing hole, described first cable installing hole is arranged along the short transverse of described centralizer body, described second cable installing hole being radially arranged along described centralizer body, two bottom surfaces of described centralizer body are connected by described first cable installing hole with described second cable installing hole, described first cable installing hole does not connect with arbitrary described rectangular through holes and arbitrary described first positioning through hole, described second cable installing hole does not connect with arbitrary described rectangular through holes and arbitrary described first positioning through hole,
The opening surface of described second cable installing hole is arranged on the side of described centralizer body, and described cover plate is fixed by screws in the side of described centralizer body and is positioned at the opening surface position place of described second cable installing hole.
Further, described locating shaft is cylindrical-shaped structure, and the height of described locating shaft is less than or equal to the diameter of described centralizer body, and more than the width of described rectangular through holes.
Further, the height of described locating shaft is equal to the diameter of described centralizer body.
Further, described locating shaft is cylindrical-shaped structure, described first positioning through hole and described second positioning through hole are all manhole, the aperture of described first positioning through hole is equal with the aperture of described second positioning through hole, the diameter of described locating shaft is less than the aperture of described first positioning through hole, and the difference of the diameter of the aperture of described first positioning through hole and described locating shaft is less than the second predetermined threshold value.
Further, the longitudinal axis conllinear of the axis of described second positioning through hole and described roller.
Further, measurement and adjustment instrument device is cylindrical-shaped structure, the equal diameters of the diameter of described centralizer body and described measurement and adjustment instrument device, the upper end of described centralizer body is provided with female thread, lower end is provided with external screw thread, and described measurement and adjustment instrument device is for being connected by described female thread or described external screw thread are fixing with described centralizer body.
The technical scheme that this utility model provides has the benefit that
The centralizer that this utility model provides includes: centralizer body, roller and locating shaft, centralizer body is cylindrical-shaped structure, side is provided with rectangular through holes and the first positioning through hole, the bottom surface of roller is provided with along through the second positioning through hole of the short transverse of roller, and the diameter of roller is more than the diameter of centralizer body; Roller is arranged in rectangular through holes, and roller is flexibly connected with centralizer body by locating shaft through the first positioning through hole and the second positioning through hole. This utility model by arranging roller on centralizer body, sliding friction is converted to rolling friction, solve cause more greatly because of force of sliding friction measurement and adjustment instrument device cannot the problem at target injection well downhole flow regulator position place of G.I.H, reached the effect at the target injection well downhole flow regulator position place being easy to measurement and adjustment instrument device G.I.H.
It should be appreciated that above general description and details hereinafter describe and be merely illustrative of, this utility model can not be limited.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in this utility model embodiment, below the accompanying drawing used required during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of centralizer that one embodiment of this utility model provides;
Fig. 2 is the structural representation of a kind of centralizer that another embodiment of this utility model provides;
Fig. 3 is the structural representation of a kind of centralizer that embodiment illustrated in fig. 2 provides;
Fig. 4 is the structural representation of a kind of roller that embodiment illustrated in fig. 2 provides;
Fig. 5 is the profile of a kind of roller that embodiment illustrated in fig. 4 provides;
Fig. 6 is the structural representation of the another kind of centralizer that embodiment illustrated in fig. 2 provides;
Fig. 7 is the lengthwise cross section figure of the centralizer that embodiment illustrated in fig. 2 provides.
Accompanying drawing herein is merged in description and constitutes the part of this specification, it is shown that meets embodiment of the present utility model, and is used for explaining principle of the present utility model together with description.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, this utility model is described in further detail, obviously, described embodiment is only this utility model some embodiments, rather than whole embodiments. Based on the embodiment in this utility model, all other embodiments that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection.
Refer to Fig. 1, it illustrates the structural representation of the centralizer 00 that one embodiment of this utility model provides, when this centralizer 00 is for entering measurement and adjustment instrument device under in well, measurement and adjustment instrument device is carried out righting, referring to Fig. 1, this centralizer 00 may include that centralizer body 001, roller 002 and locating shaft 003.
Centralizer body 001 is cylindrical-shaped structure, side is provided with rectangular through holes (not marking in Fig. 1) and the first positioning through hole (not marking in Fig. 1), the axis x of rectangular through holes vertical with the axis of the first positioning through hole (being not drawn in Fig. 1), and the length direction of rectangular through holes (not marking in Fig. 1) is parallel with the short transverse h of centralizer body 001, the length of rectangular through holes is more than the diameter of roller 002, the width of rectangular through holes is more than the height of roller 002, and the diameter of roller 002 is more than the diameter of centralizer body 001; The bottom surface of roller 002 is provided with the second positioning through hole (being not drawn in Fig. 1) that the short transverse (being not drawn in Fig. 1) along roller 002 is through; Roller 002 is arranged in rectangular through holes, and roller 002 is flexibly connected with centralizer body 001 by locating shaft 003 through the first positioning through hole and the second positioning through hole.
In sum, the centralizer that this utility model embodiment provides, by arranging roller on centralizer body, sliding friction is converted to rolling friction, solve cause more greatly because of force of sliding friction measurement and adjustment instrument device cannot the problem at target injection well downhole flow regulator position place of G.I.H, reached the effect at the target injection well downhole flow regulator position place being easy to measurement and adjustment instrument device G.I.H.
Refer to Fig. 2, it illustrates the structural representation of the centralizer 00 that another embodiment of this utility model provides, when this centralizer 00 is for entering measurement and adjustment instrument device under in well, measurement and adjustment instrument device is carried out righting, referring to Fig. 2, this centralizer 00 may include that centralizer body 001, roller 002 and locating shaft 003.
Centralizer body 001 can be cylindrical-shaped structure, the side of centralizer body 001 is provided with rectangular through holes A and the first positioning through hole (not marking in Fig. 2), the axis x of rectangular through holes A is vertical with the axis of the first positioning through hole (drawing in Fig. 2), and the length direction y of rectangular through holes A is parallel with the short transverse h of centralizer body 001.
The bottom surface of roller 002 is provided with the second positioning through hole (drawing in Fig. 2) through for short transverse z along roller 002, roller 002 is arranged in rectangular through holes A, and roller 002 is flexibly connected with centralizer body 001 by locating shaft 003 through the first positioning through hole and the second positioning through hole.
Illustratively, as shown in Figure 3, for the ease of roller 002 is arranged in rectangular through holes A, the length a of rectangular through holes A is more than the diameter R of roller 002, the width b of rectangular through holes A is more than the height c of roller 002, and in order to the force of sliding friction between centralizer 00 and oil pipe is converted to force of rolling friction, the diameter R of roller 002 can more than the diameter r of centralizer body 001, and the difference of the diameter R of the roller 002 and diameter r of centralizer body 001 is less than predetermined threshold value, illustratively, the difference of the diameter R of the roller 002 and diameter r of centralizer body 001 is less than 0.02 millimeter, alternatively, the diameter r of centralizer body 001 is less than the diameter of the central canal of injection well downhole flow regulator in well, so can so that centralizer 00 drives measurement and adjustment instrument device to arrive the target injection well downhole flow regulator of target oil reservoir through the central canal of injection well downhole flow regulator in well, this is not limited by this utility model embodiment.
Alternatively, in this utility model embodiment, locating shaft 003 is cylindrical-shaped structure, and the height of locating shaft 003 is less than or equal to the diameter r of centralizer body 001 and the width b more than rectangular through holes A, preferably, the height of locating shaft 003 is equal to the diameter r of centralizer body 001. In this utility model embodiment, first positioning through hole and the second positioning through hole are all manhole, the aperture of the first positioning through hole can be equal with the aperture of the second positioning through hole, the diameter of locating shaft 003 can less than the aperture of the first positioning through hole, and the difference of the diameter of the aperture of the first positioning through hole and locating shaft 003 is less than the second predetermined threshold value. Wherein, the second predetermined threshold value can rule of thumb be arranged, and this is not limited by this utility model embodiment.
Further, please continue to refer to Fig. 2, this centralizer 00 also includes: ball 004, and the bottom surface of roller 002 is provided with curved indentations (being not drawn in Fig. 2), and ball 004 is arranged in curved indentations. Alternatively, curved indentations can be hemispherical curved indentations, the diameter of curved indentations can more than the diameter of ball 004, and the difference of the diameter of the diameter of curved indentations and ball 004 is less than the first predetermined threshold value, this also can so that ball 004 rotates in curved indentations, further, in this utility model embodiment, the number of ball 004 and the number of curved indentations are all M, M is the integer more than or equal to 1, is provided with a ball 004 in each curved indentations. Wherein, the setting of ball 004 can so that roller 002 rolls. It should be noted that in this utility model embodiment, the concrete numerical value of M can be configured according to actual needs, first predetermined threshold value can rule of thumb be arranged, illustratively, this first predetermined threshold value is equal to 0.01 millimeter, and this is not limited by this utility model embodiment.
Further, refer to Fig. 4, it is illustrated that the structural representation of roller 002 that embodiment illustrated in fig. 2 provides, referring to Fig. 4, the cross section of roller 002 is circular, the bottom surface W of roller 002 is provided with the second positioning through hole 0021, the axis (being not drawn in Fig. 4) of this second positioning through hole 0021 and longitudinal axis (being not drawn in Fig. 4) conllinear of roller 002, that is to say, second positioning through hole 0021 is arranged on the center of the bottom surface W of roller 002, the bottom surface W of roller 002 is additionally provided with curved indentations 0022, this curved indentations 0022 is used for arranging ball, alternatively, rotate around locating shaft in rectangular through holes for the ease of roller 002, two bottom surface W of roller 002 are both provided with curved indentations 0022, it should be noted that, in this utility model embodiment, the number of curved indentations 0022 is M, M can be the even number more than or equal to 2, each bottom surface W of roller 002 is both provided with M/2 curved indentations 0022, M/2 curved indentations 0022 on arbitrary bottom surface of roller 002 is arranged along the first circumference array, the concyclic heart in arbitrary bottom surface of this first circumference and this roller 002.Illustratively, as shown in Figure 4, M/2 is equal to 4, and therefore, M is equal to 8, that is to say, each bottom surface of roller 002 is both provided with 4 curved indentations 0022, and these 4 curved indentations 0022 are arranged along the first circumference array. Curved indentations 0022 is hemispherical curved indentations, and the diameter d of curved indentations 0022 can more than the diameter of ball, and the difference of the diameter of the diameter d of curved indentations 0022 and ball is less than the first predetermined threshold value.
Further, refer to Fig. 5, it is illustrated that the profile of a kind of roller 002 that embodiment illustrated in fig. 4 provides, referring to Fig. 5, the bottom surface W of roller 002 is provided with the second through for the short transverse z positioning through hole 0021 along roller 002, longitudinal axis (being not drawn in Fig. 5) conllinear of the axis z1 of this second positioning through hole 0021 and roller 002, two bottom surface W of roller 002 are both provided with curved indentations 0022, and the curved indentations 0022 on the two of roller 002 bottom surfaces is symmetrical about the transverse axis cross section Q of roller 002.
Alternatively, in this utility model embodiment, the number of the roller 002 in centralizer 00 and the number of locating shaft 003 are all N, N is the integer more than or equal to 2, the bottom surface of each roller 002 is both provided with the second through for the short transverse z positioning through hole 0021 along each roller 002, the corresponding locating shaft 003 of each second positioning through hole 0021; The side of centralizer body 001 be provided with N number of rectangular through holes A and with N number of rectangular through holes A N number of first positioning through hole one to one, the axis of each rectangular through holes A and vertical with the axis of each rectangular through holes A the first positioning through hole one to one, the length direction y of each rectangular through holes A is parallel with the short transverse h of centralizer body 001, is provided with a roller 002 in each rectangular through holes A. First locating shaft through the first rectangular through holes and with the first rectangular through holes the first positioning through hole one to one, first roller is flexibly connected with centralizer body 001, first rectangular through holes is any one rectangular through holes in N number of rectangular through holes A, first roller is the roller 002 being arranged in the first rectangular through holes, and the first locating shaft is the locating shaft corresponding with the second positioning through hole on the first roller 002. Alternatively, in this utility model embodiment, N number of rectangular through holes A uniformly arranges on the side of centralizer body 001, and N number of rectangular through holes A projection on the bottom surface of centralizer body 001 is along the base circumference array arrangement of centralizer body 001.
It should be noted that in this utility model embodiment, the concrete numerical value of N can be configured according to actual needs, and this is not limited by this utility model embodiment. Illustratively, in the centralizer 00 shown in Fig. 2, N is equal to 4,4 rectangular through holes A projection on the bottom surface of centralizer body 001 is along the base circumference array arrangement of centralizer body 001, and the angle between the length direction of the projection that the two of arbitrary neighborhood rectangular through holes A are on the bottom surface of body 001 is equal to 45 degree.
Further, refer to Fig. 6, it is illustrated that the structural representation of another kind of centralizer 00 that embodiment illustrated in fig. 2 provides, referring to Fig. 6, centralizer body 001 is provided with the cable installing hole E through for short transverse h along centralizer body 001, this cable installing hole E and rectangular through holes A and the first positioning through hole (not marking in Fig. 6) do not connect, when measurement and adjustment instrument device is carried out righting by this centralizer 00, this cable installing hole E is for installing the cable of measurement and adjustment instrument device so that the cable of measurement and adjustment instrument device can pass this centralizer 00.
Further, please continue to refer to Fig. 2, centralizer 00 also includes: cover plate 005. alternatively, refer to Fig. 6, centralizer body 001 is provided with the first cable installing hole E1 and connect with the first cable installing hole E1 the second cable installing hole E2 (namely, cable installing hole E includes: the first cable installing hole E1 and the second cable installing hole E2), first cable installing hole E1 is arranged along the short transverse h of centralizer body 001, second cable installing hole E2 being radially arranged along centralizer body 001, first cable installing hole E1 and the second cable installing hole E2 is by two bottom surface connections of centralizer body 001, make cable installing hole E through along the short transverse h of centralizer body 001, wherein, first cable installing hole E1 and arbitrary rectangular through holes A and arbitrary first positioning through hole do not connect, second cable installing hole E2 and arbitrary rectangular through holes A and arbitrary first positioning through hole do not connect, the opening surface of the second cable installing hole E2 is arranged on the side of centralizer body 001, as shown in Figure 2, cover plate 005 is fixed on the side of centralizer body 001 by screw 006 and is positioned at the opening surface position place of the second cable installing hole E2.
Further, refer to Fig. 7, it is illustrated that the lengthwise cross section figure of a kind of centralizer 00 that embodiment illustrated in fig. 2 provides, and referring to Fig. 7, centralizer 00 may include that centralizer body 002,4 locating shafts 003 of 001,4 rollers and ball 004. The side of centralizer body 001 is provided with 4 rectangular through holes A and 4 the first positioning through hole (not marking in Fig. 7), the axis of each rectangular through holes A is vertical with the axis of first positioning through hole, and the length direction y of each rectangular through holes A is parallel with the short transverse h of centralizer body 001. The bottom surface of each roller 002 is provided with the second positioning through hole (being not drawn in Fig. 7) and hemispherical curved indentations (being not drawn in Fig. 7), a ball 004 it is provided with in each hemispherical curved indentations, being provided with a roller 002 in one rectangular through holes A, roller 002 is flexibly connected with centralizer body 001 by locating shaft 003 through the first positioning through hole and the second positioning through hole. Centralizer body 001 is provided with the first cable installing hole E1 along the short transverse of centralizer body 001, this first cable installing hole E1 and rectangular through holes A on centralizer body 00 and the first positioning through hole do not connect, when measurement and adjustment instrument device is carried out righting by this centralizer 00, this first cable installing hole E1 is for installing the cable of measurement and adjustment instrument device so that the cable of measurement and adjustment instrument device can pass this centralizer 00.
Alternatively, in this utility model embodiment, measurement and adjustment instrument device is cylindrical-shaped structure, the diameter of centralizer body 001 is slightly less than the equal diameters of measurement and adjustment instrument device with the equal diameters of measurement and adjustment instrument device or the diameter of centralizer body 001, the diameter of roller 002 mates with the internal diameter of the central canal of injection well downhole flow regulator, make centralizer 00 can pass through in well the injection well downhole flow regulator that the oil reservoir being positioned at more than target oil reservoir is corresponding, reach the target injection well downhole flow regulator of target oil reservoir. The upper end of centralizer body 001 is provided with female thread, and the lower end of centralizer body 001 is provided with external screw thread, and measurement and adjustment instrument device is for being connected by this female thread or external screw thread are fixing with centralizer body 001, and this is not limited by this utility model embodiment.
In sum, the centralizer that this utility model embodiment provides, by arranging roller on centralizer body, sliding friction is converted to rolling friction, solve cause more greatly because of force of sliding friction measurement and adjustment instrument device cannot the problem at target injection well downhole flow regulator position place of G.I.H, reached the effect at the target injection well downhole flow regulator position place being easy to measurement and adjustment instrument device G.I.H.
The centralizer that this utility model embodiment provides, it is particularly suited for the gradient water injection well more than more than 45 degree, adopt the centralizer that this utility model embodiment provides that measurement and adjustment instrument device can be made to pass through high angle hole section, it is simple to the water distribution quantity of target oil reservoir is adjusted by measurement and adjustment instrument device.
The centralizer that this utility model embodiment provides, under the effect of roller, force of sliding friction is converted to force of rolling friction, make measurement and adjustment instrument device can pass through high angle hole section, and by arranging curved indentations and ball in the bottom surface of roller, can so that roller rolls, and by arranging N number of roller and making N number of roller be evenly distributed on the side of centralizer body, it is ensured that roller can roll on the tube wall of oil pipe, it is prevented that centralizer body contacts generation force of sliding friction with the tube wall of oil pipe.
Below in conjunction with Fig. 2 to Fig. 7, the using method of the centralizer 00 that this utility model embodiment provides is briefly described. when water injection well layering water distribution, a centralizer 00 is connected respectively at the two ends of the external measurement and adjustment instrument device of well, specifically, first centralizer 00 is connected by the female thread adopting first centralizer 00 upper end with the threaded upper ends of measurement and adjustment instrument device, then the cable of measurement and adjustment instrument device is sequentially passed through the cable installing hole on second centralizer 00, and make the cable of measurement and adjustment instrument device stretch out from the cable installing hole second centralizer 00, then the one end of cable installing hole stretched out by cable on second centralizer 00 is connected with the adjusting rod of measurement and adjustment instrument device, second centralizer 00 is connected by the external screw thread adopting second centralizer 00 lower end with the upper end of measurement and adjustment instrument device, one end that cable is not connected with measurement and adjustment instrument device with well outside control terminal be connected, adopt the target injection well downhole flow regulator position place of the target oil reservoir that measurement and adjustment instrument device is lowered in well by this cable, under enter in the process of measurement and adjustment instrument device, roller 002 on centralizer 00 rolls along the tube wall of OIH pipe to well, measurement and adjustment instrument device is driven to move in well, measurement and adjustment instrument device is carried out the target injection well downhole flow regulator position place of the target oil reservoir that measurement and adjustment instrument device is lowered in well by righting by centralizer 00. owing to correlation technique not having centralizer, enter under in well in the process of measurement and adjustment instrument device, force of sliding friction is there is between measurement and adjustment instrument device and the tube wall of oil pipe, when the gradient of water injection well is bigger, force of sliding friction between measurement and adjustment instrument device and the tube wall of oil pipe is bigger, therefore, measurement and adjustment instrument device cannot the target injection well downhole flow regulator position place of G.I.H. this utility model embodiment is by being converted to force of rolling friction by force of sliding friction, solve cause more greatly because of force of sliding friction measurement and adjustment instrument device cannot the problem at target injection well downhole flow regulator position place of G.I.H, reached the effect at the target injection well downhole flow regulator position place being easy to measurement and adjustment instrument device G.I.H.
In this utility model embodiment, after centralizer 00 is set, under adopting the cable of measurement and adjustment instrument device in well when entering measurement and adjustment instrument device, the cable of measurement and adjustment instrument device needs to bear the weight of the weight of measurement and adjustment instrument device and centralizer 00, and for the ease of by measurement and adjustment instrument device G.I.H, weighted lever generally also can be connected in the lower end of first centralizer 00, namely, the cable of measurement and adjustment instrument device needs to bear the weight of measurement and adjustment instrument device, the weight of two centralizers 00 and the weight of weighted lever, the weight that the cable of measurement and adjustment instrument device bears is bigger, it is easily damaged the cable of measurement and adjustment instrument device, therefore, rope socket head (being connected by the female thread of second centralizer 00 upper end) can be connected second centralizer 00 upper end, by rope socket head, the ropes such as steel wire rope and second centralizer 00 are connected, when so entering measurement and adjustment instrument device under in well, the weight that the cable of measurement and adjustment instrument device bears can be shared by steel wire rope, reduce the weight that the cable of measurement and adjustment instrument device bears, the cable bad of measurement and adjustment instrument device can be avoided and the water distribution quantity of oil reservoir cannot be measured.
Behind the target injection well downhole flow regulator position place of target oil reservoir measurement and adjustment instrument device being lowered in well, by the locating detent on measurement and adjustment instrument device, measurement and adjustment instrument device is fixed on target injection well downhole flow regulator, operated by personnel controls terminal and makes to control terminal generation adjustment signal, this adjustment signal makes adjusting rod rotate by the adjusting rod of this cable transmission to measurement and adjustment instrument device, adjusting rod rotates the active force produced and acts on the water nozzle of target injection well downhole flow regulator, the aperture of the water nozzle of target injection well downhole flow regulator is adjusted, and then the water distribution quantity of target oil reservoir is adjusted.
One of ordinary skill in the art will appreciate that all or part of step realizing above-described embodiment can be completed by hardware, can also be completed by the hardware that program carrys out instruction relevant, described program can be stored in a kind of computer-readable recording medium, storage medium mentioned above can be read only memory, disk or CD etc.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all within spirit of the present utility model and principle, any amendment of making, equivalent replacement, improvement etc., should be included within protection domain of the present utility model.
Claims (15)
1. a centralizer, it is characterised in that described centralizer includes: centralizer body, roller and locating shaft,
Described centralizer body is cylindrical-shaped structure, side is provided with rectangular through holes and the first positioning through hole, the axis of described rectangular through holes is vertical with the axis of described first positioning through hole, and the length direction of described rectangular through holes is parallel with the short transverse of described centralizer body, the length of described rectangular through holes is more than the diameter of described roller, width is more than the height of described roller, and the diameter of described roller is more than the diameter of described centralizer body;
The bottom surface of described roller is provided with along through the second positioning through hole of the short transverse of described roller;
Described roller is arranged in described rectangular through holes, and described roller is flexibly connected with described centralizer body by described locating shaft through described first positioning through hole and described second positioning through hole.
2. centralizer according to claim 1, it is characterised in that
Being provided with on described centralizer body along the through cable installing hole of the short transverse of described centralizer body, described cable installing hole does not connect with described rectangular through holes and described first positioning through hole.
3. centralizer according to claim 1, it is characterised in that described centralizer also includes: ball,
The bottom surface of described roller is provided with curved indentations, and described ball is arranged in described curved indentations.
4. centralizer according to claim 3, it is characterised in that
Each bottom surface of described roller is both provided with described curved indentations, is provided with a described ball in each described curved indentations.
5. centralizer according to claim 4, it is characterised in that
The number of described ball and the number of described curved indentations are all M, described M is the integer more than or equal to 1, is provided with a described ball in each described curved indentations.
6. centralizer according to claim 5, it is characterised in that
The number of described ball is M, described M is the even number more than or equal to 2, each bottom surface of described roller is both provided with M/2 curved indentations, and the curved indentations on two bottom surfaces of described roller is symmetrical about the transverse axis cross section of described roller, curved indentations on arbitrary bottom surface of described roller is arranged along the first circumference array, described first circumference and the concyclic heart in described arbitrary bottom surface.
7. according to the arbitrary described centralizer of claim 3 to 6, it is characterised in that
Described curved indentations is hemispherical curved indentations, and the diameter of described curved indentations is more than the diameter of described ball, and the difference of the diameter of the diameter of described curved indentations and described ball is less than the first predetermined threshold value.
8. according to the arbitrary described centralizer of claim 1 to 6, it is characterised in that
The number of described roller and the number of described locating shaft are all N, described N is the integer more than or equal to 2, the bottom surface of each roller is both provided with along through the second positioning through hole of the short transverse of described each roller, each corresponding described locating shaft of described second positioning through hole;
The side of described centralizer body be provided with N number of rectangular through holes and with described N number of rectangular through holes N number of first positioning through hole one to one, the axis of each rectangular through holes and vertical with the axis of described each rectangular through holes the first positioning through hole one to one, the length direction of each rectangular through holes is parallel with the short transverse of described centralizer body, is provided with a described roller in each rectangular through holes;
First locating shaft through the first rectangular through holes and with described first rectangular through holes the first positioning through hole one to one, first roller is flexibly connected with described centralizer body, described first rectangular through holes is any one rectangular through holes in described N number of rectangular through holes, described first roller is the roller being arranged in described first rectangular through holes, and described first locating shaft is the locating shaft corresponding with the second positioning through hole on described first roller.
9. centralizer according to claim 8, it is characterised in that
Described N number of rectangular through holes is uniformly arranged on the side of described centralizer body, and the projection on the bottom surface of described centralizer body of the described N number of rectangular through holes is along the base circumference array arrangement of described centralizer body.
10. centralizer according to claim 8, it is characterised in that described centralizer also includes: cover plate,
Described centralizer body is provided with the first cable installing hole and the second cable installing hole connected with described first cable installing hole, described first cable installing hole is arranged along the short transverse of described centralizer body, described second cable installing hole being radially arranged along described centralizer body, two bottom surfaces of described centralizer body are connected by described first cable installing hole with described second cable installing hole, described first cable installing hole does not connect with arbitrary described rectangular through holes and arbitrary described first positioning through hole, described second cable installing hole does not connect with arbitrary described rectangular through holes and arbitrary described first positioning through hole,
The opening surface of described second cable installing hole is arranged on the side of described centralizer body, and described cover plate is fixed by screws in the side of described centralizer body and is positioned at the opening surface position place of described second cable installing hole.
11. according to the arbitrary described centralizer of claim 1 to 6, it is characterised in that
Described locating shaft is cylindrical-shaped structure, and the height of described locating shaft is less than or equal to the diameter of described centralizer body, and more than the width of described rectangular through holes.
12. centralizer according to claim 11, it is characterised in that
The height of described locating shaft is equal to the diameter of described centralizer body.
13. according to the arbitrary described centralizer of claim 1 to 6, it is characterised in that
Described locating shaft is cylindrical-shaped structure, described first positioning through hole and described second positioning through hole are all manhole, the aperture of described first positioning through hole is equal with the aperture of described second positioning through hole, the diameter of described locating shaft is less than the aperture of described first positioning through hole, and the difference of the diameter of the aperture of described first positioning through hole and described locating shaft is less than the second predetermined threshold value.
14. according to the arbitrary described centralizer of claim 1 to 6, it is characterised in that
The axis of described second positioning through hole and the longitudinal axis conllinear of described roller.
15. according to the arbitrary described centralizer of claim 1 to 6, it is characterised in that
Measurement and adjustment instrument device is cylindrical-shaped structure, the equal diameters of the diameter of described centralizer body and described measurement and adjustment instrument device, the upper end of described centralizer body is provided with female thread, lower end is provided with external screw thread, and described measurement and adjustment instrument device is for being connected by described female thread or described external screw thread are fixing with described centralizer body.
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| CN201521126399.4U CN205297376U (en) | 2015-12-29 | 2015-12-29 | Centering guide |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907115A (en) * | 2017-05-04 | 2017-06-30 | 西南石油大学 | A kind of roller type antifriction pipe nipple |
| CN110439538A (en) * | 2019-09-11 | 2019-11-12 | 延长油田股份有限公司杏子川采油厂 | It is a kind of for carbon dioxide drive and the optical fiber stabilizing protector sealed up for safekeeping in monitoring well |
| CN111206910A (en) * | 2020-01-19 | 2020-05-29 | 孙淑芳 | Hydraulic jet staged fracturing tool for horizontal well |
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2015
- 2015-12-29 CN CN201521126399.4U patent/CN205297376U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907115A (en) * | 2017-05-04 | 2017-06-30 | 西南石油大学 | A kind of roller type antifriction pipe nipple |
| CN110439538A (en) * | 2019-09-11 | 2019-11-12 | 延长油田股份有限公司杏子川采油厂 | It is a kind of for carbon dioxide drive and the optical fiber stabilizing protector sealed up for safekeeping in monitoring well |
| CN111206910A (en) * | 2020-01-19 | 2020-05-29 | 孙淑芳 | Hydraulic jet staged fracturing tool for horizontal well |
| CN111206910B (en) * | 2020-01-19 | 2020-10-27 | 延安兴庆石油工程技术服务有限公司 | Hydraulic jet staged fracturing tool for horizontal well |
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