CN113756762A

CN113756762A - Shunting screen pipe

Info

Publication number: CN113756762A
Application number: CN202111223966.8A
Authority: CN
Inventors: 孙非; 张玉刚; 王明
Original assignee: Individual
Current assignee: Daqing Hongbo Shengda Petroleum Machinery Equipment Co ltd
Priority date: 2021-10-19
Filing date: 2021-10-19
Publication date: 2021-12-07
Anticipated expiration: 2041-10-19
Also published as: CN113756762B

Abstract

The invention discloses a shunting sieve tube, which relates to the technical field of oil exploitation equipment, in particular to a shunting sieve tube, and comprises an installation threaded tube, wherein the bottom end of the installation threaded tube is movably connected with an outer metal sieve tube, the inside of the outer metal sieve tube is movably provided with an inner metal sieve tube, the bottom end of the outer metal sieve tube is fixedly provided with a locking ring, the bottom end of the inner metal sieve tube is fixedly connected with a connecting rod, one end of the connecting rod is in threaded connection with a locking knob, and the middle part of the installation threaded tube is fixedly provided with a central tube. According to the shunting type sieve tube, cleaning water is injected into the oil conveying pipe, the driving turbine in the central pipe is pushed by the cleaning water to drive the transmission shaft, the elastic telescopic rod and the metal brush plate to rotate, so that gravel clamped on the outer metal sieve tube and the inner metal sieve tube is cleaned by the aid of water flow assisted by the metal brush plate, and the cleaning effect of the outer metal sieve tube and the inner metal sieve tube is improved.

Description

Shunting screen pipe

Technical Field

The invention relates to the technical field of oil exploitation equipment, in particular to a shunting type sieve tube.

Background

Petroleum is a fluid mineral buried deep in the ground. At first, oily liquid minerals produced in nature are called petroleum, combustible gas is called natural gas, and solid combustible oily minerals are called asphalt. With the intensive research on these minerals, it is recognized that they are hydrocarbon compounds in composition, and are related to each other in origin, so they are collectively called petroleum. Compared with coal, petroleum is an important energy source, and has the advantages of high energy density (the combustion heat of the petroleum with the same weight is 50 percent higher than that of standard coal), convenience in transportation and storage, small pollution degree to the atmosphere after combustion and the like. Fuel oil extracted from petroleum is the main fuel for various kilns in the transportation, power station boilers, metallurgical and building material industries. Liquefied gas and pipeline gas which use petroleum as raw materials are high-quality fuels used in life of urban residents. Airplanes, tanks, naval vessels, rockets, and other spacecraft also consume large amounts of petroleum fuel. Thus, many countries rank oil as strategic material.

The oil production engineering is a technological process for lifting oil and gas from bottom to top in oil well. The oil gas can be self-sprayed by the energy of the stratum, and can also be lifted by the artificially supplemented energy of an oil well pump, a gas lift and the like. Various effective well repairing measures can eliminate the faults of wax precipitation, water outlet, sand production and the like which often occur in the oil well, and ensure the normal production of the oil well. The yield increasing measures such as hydraulic fracturing or acidification can improve the yield reduced by too low permeability of an oil layer or improper pollution and damage of an oil-gas layer due to well drilling technical measures. For the injection well, the injection capacity is improved (see oil production method, gas production process, layered production technology, oil and gas well production increasing process).

When petroleum is pumped out along an oil well through an oil delivery pipe, for reducing impurities in the petroleum and improving the crude oil quality, a sieve pipe needs to be additionally arranged at the bottom end of the oil delivery pipe, the current common petroleum sieve pipe is usually fixed in sieve pore size and cannot be adjusted according to different geological environments of the oil well, so that sieve pipes with different specifications need to be adopted for oil wells with different geological conditions, the universality is poor, the manufacturing cost is increased, and in addition, when a plurality of petroleum sieve pipes are used, when the screen pipe is blocked, cleaning water is usually filled into the oil pipeline to clean the screen pipe, however, when gravel is stuck inside the sieve holes, the sieve holes of the sieve tube cannot be dredged only by water flow impact, and the sieve tube is more and more seriously blocked with the lapse of time, so that the normal oil production operation is influenced.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a shunting type sieve tube, which solves the problems in the background technology.

In order to achieve the purpose, the invention is realized by the following technical scheme: a shunting sieve tube comprises an installation threaded tube, wherein the bottom end of the installation threaded tube is movably connected with an outer metal sieve tube, the inside of the outer metal sieve tube is movably provided with an inner metal sieve tube, the bottom end of the outer metal sieve tube is fixedly provided with a locking ring, the bottom end of the inner metal sieve tube is fixedly connected with a connecting rod, one end of the connecting rod is in threaded connection with a locking knob, the middle part of the installation threaded tube is fixedly provided with a central tube, the middle part of the central tube is movably provided with a transmission shaft, the outside of the transmission shaft is fixedly sleeved with a driving turbine positioned in the central tube, the outside of the transmission shaft is fixedly provided with an elastic telescopic rod, one end of the elastic telescopic rod, far away from the transmission shaft, is fixedly provided with a metal brush plate, the inside of the installation threaded tube is fixedly provided with a first positioning plate, the outside of the central tube is movably sleeved with an oil outlet baffle plate, and the inside of the central tube is fixedly provided with a second limiting ring, and a water inlet baffle positioned at the bottom of the second limiting ring is movably sleeved outside the transmission shaft.

Preferably, the outer metal screen pipe and the inner metal screen pipe are hollowed out, the inner wall of the outer metal screen pipe is attached to the outer wall of the inner metal screen pipe, a connecting snap ring is fixedly installed at the top end of the outer metal screen pipe, and the outer metal screen pipe is movably connected with the installation threaded pipe through the connecting snap ring.

Preferably, one end of the connecting rod is located at the center of the bottom of the inner metal screen pipe, and the connecting rod and the locking knob are located at the bottom of the locking ring.

Preferably, the fixed cover in outside below of center tube is equipped with one-level triangle link, and the center tube passes through one-level triangle link fixed mounting in the inside of installation screwed pipe, the inside top fixed mounting of center tube has second grade triangle link, and the center tube passes through second grade triangle link and transmission shaft swing joint.

Preferably, the fixed cover in outside top of center tube is equipped with first spacing ring, the outside movable sleeve of center tube is equipped with the first compression spring that is located first spacing ring below, first compression spring is located oil outlet baffle, first locating plate top, the oilhole has been seted up at the middle part of first locating plate, the diameter value of passing the oilhole is greater than the diameter value of center tube and is less than the diameter value of oil outlet baffle.

Preferably, the outside movable sleeve of transmission shaft is equipped with the second compression spring that is located the baffle bottom of intaking, the outside movable sleeve of transmission shaft is equipped with two plane bearings that are located second compression spring both ends, the outside fixed sleeve of transmission shaft is equipped with the location retaining ring that is located below plane bearing bottom.

Preferably, the number of the metal brush plates is three groups, and the three groups of the metal brush plates are uniformly distributed on the peripheral side of the transmission shaft.

The invention provides a shunting sieve tube, which has the following beneficial effects:

1. this shunting screen pipe, through to defeated oil pipe inside injection washing water, drive turbine through wasing in the water promotion center tube drives transmission shaft and elastic expansion link, the metal brush board rotates, thereby through the supplementary rivers of metal brush board outside metal screen pipe, the grit of joint on the interior metal screen pipe clears up, improve the clearance effect to outside metal screen pipe, interior metal screen pipe, exert elasticity through elastic expansion link to the metal brush board simultaneously, make the metal brush hair of metal brush board side can exert pressure to outside metal screen pipe, interior metal screen pipe, thereby further improve the clearance effect.

2. This shunting screen pipe when wasing water to the inside injection of installation screwed pipe, blocks through the baffle that produces oil, makes rivers can only follow the inside flow of central tube, improves the velocity of flow of rivers to improve the rotational speed of drive turbine and transmission shaft, thereby improve the rotational speed of metal brush board when the clearance, prevent that metal brush board card is inside interior metal screen pipe, further improved the clearance effect of grit on outer metal screen pipe, interior metal screen pipe simultaneously.

3. According to the shunting type sieve tube, the locking knob is rotated to remove the limitation on the connecting rod and the inner metal sieve tube, the inner metal sieve tube can be driven by the connecting rod to rotate, the staggered degree of the outer sieve pores of the inner metal sieve tube and the outer metal sieve tube is adjusted, the specification of the sieve tube is adjusted, the shunting type sieve tube can be used under different geological conditions, meanwhile, the universality is improved, and the manufacturing cost is reduced.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the joint of the outer metal screen and the inner metal screen of the present invention;

FIG. 3 is a schematic structural view of a cross section of an installation threaded pipe according to the present invention;

FIG. 4 is a schematic structural view of a cross section of a core tube according to the present invention;

FIG. 5 is a schematic view of the exterior of the propeller shaft of the present invention;

FIG. 6 is a schematic view of the bottom of the inner metal screen of the present invention;

figure 7 is a schematic of the outer metal screen of the present invention.

In the figure: 1. installing a threaded pipe; 2. an outer metal screen pipe; 3. an inner metal screen pipe; 4. a locking ring; 5. a connecting rod; 6. a locking knob; 7. connecting a snap ring; 8. a central tube; 9. an oil outlet baffle plate; 10. a first positioning plate; 11. a first compression spring; 12. a first limit ring; 13. a secondary triangular connecting frame; 14. a first-stage triangular connecting frame; 15. a drive shaft; 16. an elastic telescopic rod; 17. a metal brush plate; 18. a flat bearing; 19. a second compression spring; 20. a second stop collar; 21. a water inlet baffle plate; 22. driving the turbine.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 and 4, the present invention provides a technical solution: a shunting sieve tube comprises an installation threaded tube 1, wherein the bottom end of the installation threaded tube 1 is movably connected with an outer metal sieve tube 2, the inner metal sieve tube 3 is movably installed inside the outer metal sieve tube 2, the bottom end of the outer metal sieve tube 2 is fixedly installed with a locking ring 4, the bottom end of the inner metal sieve tube 3 is fixedly connected with a connecting rod 5, one end of the connecting rod 5 is in threaded connection with a locking knob 6, the middle part of the installation threaded tube 1 is fixedly installed with a central tube 8, the middle part of the central tube 8 is movably installed with a transmission shaft 15, the outside of the transmission shaft 15 is fixedly sleeved with a driving turbine 22 positioned inside the central tube 8, the outside of the transmission shaft 15 is fixedly installed with an elastic telescopic rod 16, one end of the elastic telescopic rod 16 far away from the transmission shaft 15 is fixedly installed with a metal brush plate 17, the inside of the installation threaded tube 1 is fixedly installed with a first positioning plate 10, the outside of the central tube 8 is movably sleeved with an oil outlet baffle plate 9, a second limiting ring 20 is fixedly arranged inside the central tube 8, a water inlet baffle 21 positioned at the bottom of the second limiting ring 20 is movably sleeved outside the transmission shaft 15, a first limiting ring 12 is fixedly sleeved above the outside of the central tube 8, a first compression spring 11 positioned below the first limiting ring 12 is movably sleeved outside the central tube 8, the first compression spring 11 is positioned at the top of the oil outlet baffle 9 and the top of the first positioning plate 10, an oil through hole is formed in the middle of the first positioning plate 10, the diameter value of the oil through hole is larger than that of the central tube 8 and smaller than that of the oil outlet baffle 9, the oil outlet baffle 9 and the first positioning plate 10 are arranged inside the installation threaded tube 1, the oil outlet baffle 9 is pushed to move upwards by oil during oil extraction, so that cleaning water can only flow along the inside of the central tube 8 when being injected into the installation threaded tube 1, the rotating speed of the driving turbine 22 and the transmission shaft 15 is increased, and the cleaning effect is improved.

Referring to fig. 2, 6 and 7, the outer metal screen pipe 2 and the inner metal screen pipe 3 are all hollowed out, the inner wall of the outer metal screen pipe 2 is attached to the outer wall of the inner metal screen pipe 3, the top end of the outer metal screen pipe 2 is fixedly provided with a connecting snap ring 7, the outer metal screen pipe 2 is movably connected with the mounting threaded pipe 1 through the connecting snap ring 7, one end of the connecting rod 5 is located at the central position of the bottom of the inner metal screen pipe 3, the connecting rod 5 and the locking knob 6 are located at the bottom of the locking ring 4, the staggering degree of the outer sieve pores of the outer metal screen pipe 2 and the inner metal screen pipe 3 can be adjusted by arranging the two layers of the outer metal screen pipe 2 and the inner metal screen pipe 3, the specification of the sieve pores is adjusted, the device can be used under different geological conditions, the universality is improved, the manufacturing cost is reduced, after the inner metal screen pipe 3 is adjusted, the locking knob 6 is rotated and one end of the locking knob 6 is tightly pressed against the locking ring 4, the connecting rod 5 and the inner metal sieve tube 3 are locked, so that the stability of the inner metal sieve tube 3 after adjustment is ensured.

Please refer to fig. 3, a first-stage triangular connecting frame 14 is fixedly sleeved below the outside of the central tube 8, the central tube 8 is fixedly installed inside the installation threaded tube 1 through the first-stage triangular connecting frame 14, a second-stage triangular connecting frame 13 is fixedly installed above the inside of the central tube 8, the central tube 8 is movably connected with the transmission shaft 15 through the second-stage triangular connecting frame 13, the central tube 8 is installed inside the installation threaded tube 1 through the first-stage triangular connecting frame 14, it is ensured that the central tube 8 is stably connected with the installation threaded tube 1, an oil flowing area is reserved, the effectiveness of the device is ensured, the transmission shaft 15 is installed in the middle of the central tube 8 through the second-stage triangular connecting frame 13, and the stability of the transmission shaft 15 rotating inside the central tube 8 is ensured.

Referring to fig. 5, a second compression spring 19 is movably sleeved outside the transmission shaft 15 and located at the bottom of the water inlet baffle 21, two flat bearings 18 located at two ends of the second compression spring 19 are movably sleeved outside the transmission shaft 15, a positioning baffle ring located at the bottom of the lower flat bearing 18 is fixedly sleeved outside the transmission shaft 15, the position of the second compression spring 19 is limited by the two flat bearings 18, it is ensured that the second compression spring 19 can apply elasticity to the water inlet baffle 21, meanwhile, abrasion to the second compression spring 19 when the transmission shaft 15 drives the positioning baffle ring to rotate is avoided, the service life of the second compression spring 19 is prolonged, the number of the metal brush plates 17 is three, the three groups of metal brush plates 17 are uniformly distributed on the periphery of the transmission shaft 15, and the transmission shaft 15 and the elastic telescopic rod 16 are driven by a driving turbine 22 injecting and pushing the cleaning water 8 into the oil pipeline to drive the transmission pipe to drive the transmission shaft 15 and the elastic telescopic rod 16 to rotate, The metal brush plate 17 rotates, so that gravel clamped on the outer metal sieve tube 2 and the inner metal sieve tube 3 is cleaned by water flow assisted by the metal brush plate 17, the cleaning effect on the outer metal sieve tube 2 and the inner metal sieve tube 3 is improved, the metal brush bristles on the side surface of the metal brush plate 17 can apply pressure on the outer metal sieve tube 2 and the inner metal sieve tube 3 by applying elasticity to the metal brush plate 17 through the elastic telescopic rod 16, and the cleaning effect is further improved.

In conclusion, when the flow-dividing sieve tube is used, the sieve tube is installed at the bottom end of an oil delivery pipe of an oil well through the installation threaded pipe 1, the locking knob 6 is rotated to release the limitation on the connecting rod 5 and the inner metal sieve tube 3 according to different geological conditions of the oil well, the inner metal sieve tube 3 is driven to rotate through the connecting rod 5, the staggered degree of the outer sieve pores of the inner metal sieve tube 3 and the outer metal sieve tube 2 can be adjusted, the specifications of the outer metal sieve tube 2 and the inner metal sieve tube 3 are adjusted, after the inner metal sieve tube 3 is adjusted, the connecting rod 5 is locked through rotating the locking knob 6, when oil extraction is carried out, oil is filtered and sucked into the outer metal sieve tube 2 and the inner metal sieve tube 3 through the outer metal sieve tube 2 and the inner metal sieve tube 3, at the moment, the oil flows upwards to push the oil outlet baffle 9 to move upwards to be discharged along the installation threaded pipe 1, at the moment, the second compression spring 19 applies elasticity to the water inlet baffle 21, 8 bottom closures of center tube, when outer metal screen pipe 2, when jam appears in interior metal screen pipe 3, wash water to the inside input of installation screwed pipe 1 along defeated oil pipe, first compression spring 11 exerts elasticity to oil outlet baffle 9 this moment, oil outlet baffle 9, first locating plate 10 junction is closed, rivers promote into water baffle 21 downstream, rivers can be at 8 inside flows in center tube this moment, promote drive turbine 22 through rivers and drive transmission shaft 15 and rotate, drive elastic telescopic rod 16, metal brush board 17 rotates, it is 1 to install screwed pipe to supplementary rivers through metal brush board 17, grit on the interior metal screen pipe 3 is cleared up, exert elasticity through elastic telescopic rod 16 to metal brush board 17 simultaneously, make metal brush board 17 can exert pressure to 3 inner walls of interior metal screen pipe, improve the clearance effect, can.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A shunting screen pipe, includes installation screwed pipe (1), its characterized in that: the bottom end of the mounting threaded pipe (1) is movably connected with an outer metal sieve pipe (2), the inner metal sieve pipe (3) is movably mounted inside the outer metal sieve pipe (2), the bottom end of the outer metal sieve pipe (2) is fixedly mounted with a locking ring (4), the bottom end of the inner metal sieve pipe (3) is fixedly connected with a connecting rod (5), one end of the connecting rod (5) is in threaded connection with a locking knob (6), the middle of the mounting threaded pipe (1) is fixedly mounted with a central pipe (8), the middle of the central pipe (8) is movably mounted with a transmission shaft (15), the outer part of the transmission shaft (15) is fixedly sleeved with a driving turbine (22) positioned inside the central pipe (8), the outer part of the transmission shaft (15) is fixedly mounted with an elastic telescopic rod (16), and one end of the elastic telescopic rod (16) far away from the transmission shaft (15) is fixedly mounted with a metal brush plate (17), the utility model discloses a hydraulic drive oil pipe, including installation screwed pipe (1), the inside fixed mounting of installation screwed pipe (1) has first locating plate (10), the outside movable sleeve of center tube (8) is equipped with out oil baffle (9), the inside fixed mounting of center tube (8) has second spacing ring (20), the outside movable sleeve of transmission shaft (15) is equipped with the baffle (21) of intaking that is located second spacing ring (20) bottom.

2. The flow distribution screen as recited in claim 1 wherein: outer metal screen pipe (2), interior metal screen pipe (3) are the fretwork form, the inner wall of outer metal screen pipe (2) laminates with the outer wall of interior metal screen pipe (3) each other, the top fixed mounting of outer metal screen pipe (2) has connection snap ring (7), and outer metal screen pipe (2) are through connecting snap ring (7) and installation screwed pipe (1) swing joint.

3. The flow distribution screen as recited in claim 1 wherein: one end of the connecting rod (5) is located at the center of the bottom of the inner metal sieve tube (3), and the connecting rod (5) and the locking knob (6) are located at the bottom of the locking ring (4).

4. The flow distribution screen as recited in claim 1 wherein: the fixed cover in the outside below of center tube (8) is equipped with one-level triangle link (14), and center tube (8) through one-level triangle link (14) fixed mounting in the inside of installation screwed pipe (1), the inside top fixed mounting of center tube (8) has second grade triangle link (13), and center tube (8) through second grade triangle link (13) and transmission shaft (15) swing joint.

5. The flow distribution screen as recited in claim 1 wherein: the fixed cover in top of center tube (8) outside is equipped with first spacing ring (12), the outside movable sleeve of center tube (8) is equipped with first compression spring (11) that are located first spacing ring (12) below, first compression spring (11) are located oil outlet baffle (9), first locating plate (10) top, the oilhole has been seted up at the middle part of first locating plate (10), the diameter value of crossing the oilhole is greater than the diameter value of center tube (8) and is less than the diameter value of oil outlet baffle (9).

6. The flow distribution screen as recited in claim 1 wherein: the outside movable sleeve of transmission shaft (15) is equipped with second compression spring (19) that are located into water baffle (21) bottom, the outside movable sleeve of transmission shaft (15) is equipped with two flat bearings (18) that are located second compression spring (19) both ends, the outside fixed sleeve of transmission shaft (15) is equipped with the location fender ring that is located below flat bearing (18) bottom.

7. The flow distribution screen as recited in claim 1 wherein: the quantity of metal brush board (17) is three groups, three groups metal brush board (17) evenly distributed is in the week side of transmission shaft (15).