CN217841571U

CN217841571U - Efficient whirl sand remover

Info

Publication number: CN217841571U
Application number: CN202221607351.5U
Authority: CN
Inventors: 胡波; 张祥; 王岳
Original assignee: Sichuan Weichuang Petroleum Equipment Manufacturing Co ltd
Current assignee: Shandong Weichuang Petroleum Technology Co ltd; Sichuan Weichuang Petroleum Equipment Manufacturing Co ltd
Priority date: 2022-06-17
Filing date: 2022-06-17
Publication date: 2022-11-18
Anticipated expiration: 2032-06-17

Abstract

The utility model discloses an efficient whirl sand cleaning device relates to the drilling technology field, an efficient whirl sand cleaning device, including last threaded drill rod, go up the lower extreme fixedly connected with pivot of threaded drill rod, threaded drill rod under the lower extreme fixedly connected with of pivot, the lower extreme fixedly connected with drilling string of lower threaded drill rod, the shape of drilling string is most advanced form, this efficient whirl sand cleaning device rotates the vortex through the drilling string, change the flow state of mud, improve the sand carrying ability of mud, and prevent that the detritus bed from forming, through ingenious eccentric top spiral sword and lower spiral sword structure, can destroy the detritus bed that has formed, and restore the wall of a well, it is more high-efficient to make the sand cleaning effect, it is more showing, can stir the vortex of mud that returns on going up, prevent the formation of detritus bed, also take cutting function simultaneously, can destroy the detritus bed of honing, and restore the wall of a well, the cycle of processing and operating cost have been reduced.

Description

Efficient whirl sand remover

Technical Field

The utility model relates to a well drilling technical field, in particular to efficient whirl sand remover.

Background

With the rapid development of petroleum drilling, at present, a large number of directional wells and horizontal wells are designed to find oil reservoirs better, and of course, challenges are brought to drilling, wherein serious sand setting and difficulty in mud sand return are one of the difficulties in drilling construction.

In directional wells and horizontal wells, due to the fact that long-distance directional sections are adopted, the well hole quality is more complex than that of a straight well, rock debris is prone to accumulating on the gravity side of the well wall and is difficult to return upwards, even accidents such as difficult tripping and drill sticking can be caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide an efficient whirl sand remover, can solve and sweep repeatedly with the drill bit to the well section that has bored to clear away accumulational sand setting and restore the wall of a well, but also increased the supplementary ageing of unnecessary simultaneously, prolonged the well drilling cycle, increased the problem of drilling cost.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an efficient whirl sand cleaning device, includes the screw thread drilling rod, the lower extreme fixedly connected with pivot of going up the screw thread drilling rod, screw thread drilling rod under the lower extreme fixedly connected with of pivot, the lower extreme fixedly connected with drilling string of lower screw thread drilling rod, the shape of drilling string is most advanced form.

Preferably, the surface of the rotating shaft is fixedly connected with an upper sleeve column, and the surface of the upper sleeve column is fixedly connected with an upper spiral cutter.

Preferably, the upper spiral knife is in an inclined arc shape.

Preferably, the upper helical blade surface is provided with cutting teeth.

Preferably, the surface of the rotating shaft is fixedly connected with a lower sleeve column, and the surface of the lower sleeve column is fixedly connected with a lower spiral cutter.

Preferably, the lower spiral cutter is in a V shape.

Preferably, the number of the lower spiral knives and the number of the upper spiral knives are four.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) The efficient rotational flow sand cleaner can cut a honed detritus bed through the upper spiral cutter, directly damage the detritus bed, trim a well wall in a cleaned well, ensure the safety of the well wall, change the flowing state of slurry through the rotation of a drill column during well drilling, improve the sand carrying capacity of the slurry and prevent the formation of the detritus bed, can damage the formed detritus bed through the ingenious eccentric upper spiral cutter and lower spiral cutter structures and repair the well wall, so that the sand cleaning effect is more efficient and remarkable, can stir the upward returning slurry to prevent the formation of the detritus bed, simultaneously has a cutting function, can damage the honed detritus bed and repair the well wall, and reduces the processing period and the operation cost.

(2) This efficient whirl sand cleaning device, four upper helical knives of circumference that the last helical knife working face through cover post surface on the section of pivot upper portion set up, it has the cutting tooth to go up helical knife surface inlay welding, can carry out the cutting action to the wall of a well, four wing diameters are unanimous with last screw drill rod and lower screw drill rod, but wherein two adjacent upper helical knife diameters are slightly big, protrusion in the external diameter of last screw drill rod and lower screw drill rod, two adjacent upper helical knife diameters slightly are less than the external diameter of last screw drill rod and lower screw drill rod in addition, make it after the rotation of drilling-following post, screw drill rod and lower screw drill rod are bigger on the whole rotatory diameter ratio, can carry out the smear metal, can not cause down drilling difficulty or jamming.

(3) This efficient whirl sand cleaning device, through set up screw thread drilling rod and lower screw thread drilling rod in the upper and lower portion of pivot, it is direct continuous with the pivot, the pivot middle part is provided with two sections working faces, spiral sword under the V-arrangement on pivot hypomere surface, the pivot upper segment is eccentric upper spiral sword, pivot lower part section lower casing post working face diameter slightly is greater than two ends and connects upper thread drilling rod and screw thread drilling rod diameter down, fixed connection's contained angle is spiral sword under two sections relative V-arrangements of one hundred twenty degrees on lower casing post, spiral sword can produce the radial reposition of redundant personnel of sweeping to the wall of a well under the V-arrangement, destroy the detritus that has the heap sinking trend, improve the suspension ability of annular space detritus, prevent that the detritus bed from forming.

Drawings

The invention will be further described with reference to the following figures and examples:

FIG. 1 is a schematic view of the structure of an efficient cyclone sand remover of the present invention;

FIG. 2 is a schematic view of the structure of the upper spiral knife of the present invention;

fig. 3 is a schematic view of the structure of the lower spiral knife of the present invention.

Reference numerals: 1 upper threaded drill rod, 2 rotating shafts, 3 lower threaded drill rods, 4 drill columns, 5 upper casing columns, 6 upper spiral cutters, 7 cutting teeth, 8 lower casing columns and 9 lower spiral cutters.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the terms greater than, less than, exceeding, etc. are understood to exclude the present numbers, and the terms above, below, inside, etc. are understood to include the present numbers. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the terms such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the terms in the present invention by combining the specific contents of the technical solution.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides an efficient whirl sand cleaning device, including last screw rod 1, the lower extreme fixedly connected with pivot 2 of going up screw rod 1, screw rod 3 under the lower extreme fixedly connected with of pivot 2, the lower extreme fixedly connected with drilling string 4 of lower screw rod 3, the shape of drilling string 4 is most advanced form, the fixed surface of pivot 2 is connected with upper casing post 5, upper casing post 5's fixed surface is connected with upper spiral sword 6, the shape of upper spiral sword 6 is slope arc form, upper spiral sword 6 surface is provided with cutting teeth 7, the fixed surface of pivot 2 is connected with lower casing post 8, the fixed surface of lower casing post 8 is connected with lower spiral sword 9, the shape of lower spiral sword 9 is the V word form, the quantity of lower spiral sword 9 and upper spiral sword 6 is four.

Furthermore, an upper threaded drill rod 1 and a lower threaded drill rod 3 are arranged at the upper part and the lower part of a rotating shaft 2 and are directly connected with the rotating shaft 2, two sections of working surfaces are arranged at the middle part of the rotating shaft 2, a V-shaped lower spiral cutter 9 on the surface of the lower section of the rotating shaft 2 and an upper section of the rotating shaft 2 are eccentric upper spiral cutters 6, the diameter of the working surface of a lower section of a lower sleeve column 8 of the rotating shaft 2 is slightly larger than that of the upper threaded drill rod 1 and the lower threaded drill rod 3 which are connected at two ends, two sections of opposite V-shaped lower spiral cutters 9 and V-shaped lower spiral cutters 9 which are fixedly connected with the lower sleeve column 8 and have an included angle of one hundred twenty degrees can generate radial shunting towards the well wall, rock debris with a piling tendency is damaged, the suspension capacity of the rock debris in an annular space is improved, and a rock debris bed is prevented from being formed.

Further, four circumferential upper spiral cutters 6 are arranged on the working face of the upper spiral cutter 6 on the surface of the upper sleeve column 5 on the upper section of the rotating shaft 2, cutting teeth 7 are welded on the surface of the upper spiral cutters 6 in an embedded mode and can cut the well wall, the diameter of each of the four blades 6 is consistent with that of the upper threaded drill rod 1 and that of the lower threaded drill rod 3, the diameter of each of the two adjacent upper spiral cutters 6 is slightly larger than that of the upper threaded drill rod 1 and that of the lower threaded drill rod 3, and the diameter of each of the two adjacent upper spiral cutters 6 is slightly smaller than that of the upper threaded drill rod 1 and that of the lower threaded drill rod 3.

Furthermore, the upper spiral cutter 6 can cut the honed detritus bed to directly damage the detritus bed, the well wall can be trimmed in a cleaned well hole to ensure the safety of the well wall, the drill stem 4 can rotate to disturb flow while drilling, the flowing state of slurry is changed, the sand carrying capacity of the slurry is improved, and the formation of the detritus bed is prevented, the formed detritus bed can be damaged and the well wall can be repaired through the ingenious eccentric upper spiral cutter 6 and lower spiral cutter 9 structure, so that the sand cleaning effect is more efficient and remarkable, the upward returning slurry can be stirred and disturbed to disturb flow, the formation of the detritus bed is prevented, the cutting function is also provided, the honed detritus bed can be damaged, the well wall can be repaired, and the processing period and the operation cost are reduced.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. The utility model provides an efficient whirl sand remover, includes screw thread drilling rod (1), its characterized in that: the lower end of the upper threaded drill rod (1) is fixedly connected with a rotating shaft (2), the lower end of the rotating shaft (2) is fixedly connected with a lower threaded drill rod (3), the lower end of the lower threaded drill rod (3) is fixedly connected with a drill string (4), and the drill string (4) is in a tip shape.

2. A high efficiency cyclonic sand cleaner as claimed in claim 1, wherein: the surface of the rotating shaft (2) is fixedly connected with an upper sleeve column (5), and the surface of the upper sleeve column (5) is fixedly connected with an upper spiral cutter (6).

3. A high efficiency cyclonic sand cleaner as claimed in claim 2, wherein: the upper spiral knife (6) is in an inclined arc shape.

4. A high efficiency cyclonic sand cleaner as claimed in claim 3, wherein: and cutting teeth (7) are arranged on the surface of the upper spiral cutter (6).

5. A high efficiency cyclonic sand cleaner as claimed in claim 2, wherein: the surface of the rotating shaft (2) is fixedly connected with a lower sleeve column (8), and the surface of the lower sleeve column (8) is fixedly connected with a lower spiral cutter (9).

6. The high efficiency cyclone sand cleaner as recited in claim 5, wherein: the lower spiral knife (9) is V-shaped.

7. An efficient cyclone sand remover according to claim 5, wherein: the number of the lower spiral knives (9) and the number of the upper spiral knives (6) are four.