CN112610188B - Boosting type water drainage and gas production device for horizontal well zigzag horizontal section - Google Patents
Boosting type water drainage and gas production device for horizontal well zigzag horizontal section Download PDFInfo
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- CN112610188B CN112610188B CN202010789556.9A CN202010789556A CN112610188B CN 112610188 B CN112610188 B CN 112610188B CN 202010789556 A CN202010789556 A CN 202010789556A CN 112610188 B CN112610188 B CN 112610188B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 14
- 238000009434 installation Methods 0.000 claims abstract description 33
- 239000011148 porous material Substances 0.000 claims abstract description 18
- 230000000694 effects Effects 0.000 claims abstract description 6
- 230000000903 blocking effect Effects 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 6
- 241000270295 Serpentes Species 0.000 claims description 4
- 239000007788 liquid Substances 0.000 abstract description 25
- 239000007789 gas Substances 0.000 description 40
- 238000000034 method Methods 0.000 description 17
- 238000009825 accumulation Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 3
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
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- Geochemistry & Mineralogy (AREA)
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- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a boosting type drainage gas production device suitable for a 'snake-curve' -shaped horizontal section of a horizontal well, which comprises an installation shaft, a front fixing seat and a rear fixing seat, wherein the front fixing seat and the rear fixing seat are oppositely arranged; the epaxial roll-off thrust piece that has the activity to set up of installation, it can be when being close to preceding fixing base, and the pore on fixing base and the back fixing base before making is in the connected state, and when being close to the back fixing base, blocks the pore on preceding fixing base and the back fixing base, is equipped with canceling release mechanical system between roll-off thrust piece and the back fixing base. The invention fully utilizes the production air pressure to push the accumulated liquid at the low-lying position of the horizontal section to move forward, prevents the accumulated liquid at the low-lying position of the horizontal section from influencing the production of a gas well, accelerates the liquid discharge rate, improves the drainage and gas production efficiency and ensures the normal production capacity.
Description
Technical Field
The invention belongs to a drainage gas production device of a gas production well in an oil and gas field, and particularly relates to a boosting type drainage gas production device for a zigzag horizontal section of a horizontal well.
Background
In the process of exploiting the gas well, liquid accumulation or water production conditions can occur in a shaft of the gas well and a stratum near the bottom of the gas well, and normal production of the gas well is influenced. The horizontal well is an important well type of natural gas exploitation at present, and due to the influence of conditions such as geological conditions, drilling technology and the like, the horizontal section is difficult to be ensured to be in a straight state in the drilling process of the horizontal well, a 'snake curve' type horizontal section often appears, the horizontal section of the horizontal section shows an up-and-down fluctuation structure in the longitudinal direction, and a 'concave' structure and a 'convex' structure appear. In the production process of a gas well, when water begins to be produced at the bottom of the well, due to the difference of gas-liquid density, gas-liquid separation can occur in the horizontal section, the gas flows at the upper part of a pipeline, the gas flows at the lower part of the pipeline, and due to the 'snake-curve' type bending structure of the horizontal section, liquid accumulation can often occur in a 'sunken' low-lying part, so that a gas flow channel is blocked, the normal production of the gas well is influenced, and the efficiency of the gas well is reduced.
At present, the drainage gas production technology mainly comprises the process technologies of foam drainage gas production, plunger water soaking gas production, preferable pipe column drainage gas production, machine pumping drainage gas production and the like, and the conventional drainage gas production technology is difficult to drop into a horizontal section, so that the drainage gas production device and tools of the low-lying accumulated liquid well of the zigzag horizontal section are less researched, and at present, the drainage gas production technology is in a technological blank period. Therefore, the invention mainly aims to solve the problem of liquid accumulation in a sunken low-lying part of an oil pipe at the horizontal section of a gas well, increase effective gas flow channels, reduce the pressure loss of the gas well and improve the production efficiency of the gas well.
Disclosure of Invention
In order to solve the problems, the invention provides a boosting type drainage gas production device for a snake-shaped horizontal section of a horizontal well, which takes gas as power to push the flow of accumulated liquid at the low-lying position of a horizontal oil pipe so as to reduce the influence of the accumulated liquid and ensure normal production.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the utility model provides a boosting formula drainage gas production device that is used for horizontal well "snake" form horizontal segment which the key lies in: including the installation axle to and just to preceding fixing base and the back fixing base that sets up, both ends respectively with preceding fixing base and back fixing base fixed connection around the installation axle, preceding fixing base and back fixing base all are discoid to all be equipped with the pore that supplies fluid to circulate along its axial.
The epaxial roll-off thrust piece that has the activity to set up of installation, it can be when being close to preceding fixing base, and the pore on fixing base and the back fixing base before making is in the connected state, and when being close to the back fixing base, blocks the pore on preceding fixing base and the back fixing base, be equipped with canceling release mechanical system between roll-off thrust piece and the back fixing base.
When the boosting device is close to the front fixing seat, the pore passages of the front fixing seat and the rear fixing seat are communicated, the pressures of the front side and the rear side of the boosting part reach a balanced state, the boosting part returns to the rear end under the action of a reset mechanism, pressure accumulation boosting action is performed for the second time, a plurality of devices work simultaneously, so that the accumulated liquid at the low-lying position of the oil pipe is greatly reduced, and the liquid discharge efficiency and the production efficiency are improved.
Preferably, the method comprises the following steps: the boosting part comprises a sliding sleeve movably sleeved on the installation shaft, an annular door frame is fixedly sleeved at one end, close to the front fixing seat, of the sliding sleeve, and a fan-shaped door plate is installed on the annular door frame in a rotatable mode, the inner diameter of the annular door frame is smaller than that of the hole channel of the front fixing seat and the rear fixing seat, a locking structure is arranged between the fan-shaped door plate and the sliding sleeve, a triggering structure is arranged on the front fixing seat, and an unlocking structure is arranged on the rear fixing seat.
When the boosting piece is close to the front fixing seat, the fan-shaped door plate can be opened under the action of the trigger structure and is kept in an opening state through the locking structure, when the boosting piece is close to the rear fixing seat, the unlocking structure is unlocked, and the fan-shaped door plate is reset and is kept in a closing state.
Door plant structure more than adopting is convenient for realize the closure and the opening of passageway, and the principle is simple relatively, is convenient for realize, and it is lower to implement economic cost, is convenient for use widely on a large scale to can ensure that the boosting piece slides the process forward and be in normally closed state all the time, in order to reach the best liquid pushing effect, and slide the process backward and be in the open mode all the time, in order to ensure that the boosting piece can resume to target in place.
Preferably, the method comprises the following steps: the annular door frame is provided with two symmetrical fan-shaped door plates and comprises an annular outer frame and an annular inner frame which are concentrically arranged, wherein the annular inner frame is fixedly sleeved on the sliding sleeve, and the two opposite sides of the annular inner frame are fixedly connected with the annular outer frame through connecting parts.
The two fan-shaped door plates are symmetrically arranged on two sides of the annular inner frame and are hinged with the annular inner frame through a rotating shaft, and the outer edge of one side of the annular outer frame, which is close to the front fixing seat, is provided with a blocking edge which extends inwards along the radial direction. Scheme more than adopting can improve fan-shaped door plant stability in rotation and reliability, restricts fan-shaped door plant's preceding turned angle through keeping off simultaneously along the front, prevents that the door plant from rotating forward under the pressure effect and opening, leads to the condition emergence that the passageway closed became invalid.
Preferably, the method comprises the following steps: and a torsion spring is arranged between the fan-shaped door panel and the annular inner frame and applies a force approaching the blocking edge to the fan-shaped door panel. By adopting the scheme, the fan-shaped door plate can be restored to the closed state under the action of the torsion spring after the installation process and the recovery in-place unlocking are ensured, and the working reliability of the fan-shaped door plate is improved.
Preferably, the method comprises the following steps: the sliding sleeve is movably sleeved with a locking sleeve, a spring locking pin is arranged at a position, far away from the annular portal, of the sliding sleeve, and a locking hole matched with the spring locking pin is formed in the locking sleeve.
The fan-shaped door plate is characterized in that a connecting rod is arranged between the locking sleeve and the fan-shaped door plate, when the fan-shaped door plate is in a closed state, the locking sleeve is positioned in front of the spring locking pin, and when the fan-shaped door plate rotates backwards, the connecting rod can push the locking sleeve to slide backwards, and the spring locking pin is inserted into the corresponding locking hole. The locking structure is convenient to install and implement, and the overall cost is relatively low.
Preferably, the method comprises the following steps: the fan-shaped door plate is provided with a supporting rod corresponding to the connecting rod, the supporting rod extends backwards, the far end of the supporting rod inclines towards one side where the mounting shaft is located, and two ends of the connecting rod are hinged with the supporting rod and the locking sleeve respectively. By adopting the scheme, the stroke required by locking and locking of the locking sleeve can be shortened through the supporting rod, and the fan-shaped door plate can be provided with larger supporting force, so that the connecting rod can be prevented from being positioned at a rotation dead point, and the door plate can be opened and closed smoothly.
Preferably, the method comprises the following steps: the front side of the rear fixing seat is provided with an unlocking sleeve, the inner diameter of the unlocking sleeve is matched with the locking sleeve, and the front end face of the unlocking sleeve is provided with a guide inclined plane. By adopting the scheme, the locking sleeve can conveniently slide into the unlocking sleeve, the spring locking pin is inwards retracted under the action of the inner wall of the unlocking sleeve, and the door plate is quickly reset under the action of the torsion spring and rear pressure and is in a closed state.
For further reducing this device manufacturing cost, improve installation effectiveness etc, canceling release mechanical system includes the extension spring that sets up along installation axle length direction, both ends are used in respectively on sliding sleeve and back fixing base around the extension spring.
Preferably, the method comprises the following steps: the installation axle is hollow structure, just has the spout that the symmetry set up to both sides on it, install the interior push pedal that has of axle spout sliding fit, push pedal and sliding sleeve fixed connection, the extension spring is located the installation axle, and both ends are fixed respectively at push pedal and installation axle tail end around it. Scheme more than adopting can play certain protection and stabilizing action to the extension spring, increase of service life simultaneously through push pedal and spout cooperation, can guarantee the sliding sleeve stationarity that slides, prevents to block and dies.
Preferably, the method comprises the following steps: the triggering structure is a support rod arranged corresponding to the fan-shaped door plate, and the support rod obliquely extends along the length direction of the installation shaft. By adopting the scheme, the fan-shaped door plate can be opened by a larger angle by a shorter vertical length, and the swinging deflection caused by overlong stay bars is favorably prevented.
Compared with the prior art, the invention has the beneficial effects that:
by adopting the boosting type drainage gas production device for the zigzag horizontal section of the horizontal well, provided by the invention, the production air pressure is fully utilized to push the accumulated liquid at the low-lying part of the horizontal section to move forwards, so that the condition that the accumulated liquid at the horizontal section is too much to form slug flow in a pipeline is prevented, the liquid discharge rate is accelerated, the drainage gas production efficiency is improved, and the normal production capacity is ensured.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a cross-sectional view of FIG. 1;
FIG. 4 is a schematic view of the booster approaching the front fixed seat, the sector door panel being open, and the locking sleeve being in a locked state;
FIG. 5 is a cross-sectional view of FIG. 4;
FIG. 6 is a schematic view of the booster with the fan-shaped door panel in a closed state;
FIG. 7 is a schematic view of the booster with the sector door panel in an open state;
FIG. 8 is a schematic view of the installation of the present invention in a tubing;
fig. 9 is a schematic diagram of the present invention.
Detailed Description
The present invention will be further described with reference to the following examples and the accompanying drawings.
Referring to fig. 1 to 9, a boosting type drainage gas production device for a horizontal well "snake" shaped horizontal segment, which includes a front fixing seat 1 and a rear fixing seat 2 which are opposite to each other, and an installation shaft 3 (front and rear, left and right, and up and down directions in the application all use the position of the horizontal segment when in use as a reference, near the bottom of the well as the back, near the wellhead as the front, near the lower side wall of the shaft as the bottom, and upper side wall as the top) which is connected with the front fixing seat 1 and the thick fixing seat 2, as shown in the figure, the main structures of the front fixing seat 1 and the rear fixing seat 2 in the embodiment are consistent, are all in a circular ring shape, and have a pore passage a inside which can supply fluid to circulate.
The mounting shaft 3 is provided with a boosting part 4 which is movably arranged, the boosting part 4 is positioned between the front fixing seat 1 and the rear fixing seat 2, a reset mechanism is arranged between the boosting part 4 and the rear fixing seat 2, the boosting part 4 is positioned at an initial position under the action of the reset mechanism, namely, is close to one end of the rear fixing seat 2 under normal pressure, and can separate a pore passage A between the front fixing seat 1 and the rear fixing seat 2, namely, the pore passage A of the front fixing seat and the pore passage A of the rear fixing seat are in a disconnected state, when the device is mounted in an oil pipe, the boosting part 4 can slide towards the front fixing seat 1 under the action of bottom pressure, and in the sliding process, the boosting part 4 keeps the disconnected state, and when the boosting part is close to the front fixing seat 1, the shape can be changed under the triggering of pressure, electric or other mechanical structures, so that a passage between the front fixing seat 1 and the rear fixing seat 2 is communicated, and fluid behind the boosting part 4 can smoothly pass through, and the boosting member 4 is restored to the initial position under the action of the resetting mechanism.
As shown in the figures, in the present application, the boosting member 4 mainly includes a sliding sleeve 40 movably sleeved on the mounting shaft 3, the sliding sleeve 40 is in sliding fit with the mounting shaft 3 and can slide along the axial direction thereof, an annular door frame 41 is provided at the front end of the sliding sleeve 40, the outer diameter of the annular door frame 41 is smaller than or equal to the outer diameter of the front and rear fixing seats, and the inner diameter thereof is smaller than the diameter of the pore passage a on the front fixing seat 1 and the rear fixing seat 2, a sector door plate 42 is hinged on the annular door frame 1, the partition and communication of the circulation pore passage a of the front fixing seat 1 and the rear fixing seat 2 can be realized by opening and closing the sector door plate 42, on the basis, a locking structure is provided between the sector door plate 42 and the sliding sleeve 40, a triggering structure is provided on the front fixing seat 1, an unlocking structure is provided on the rear fixing seat 2, when the boosting member 4 is located at the initial position, the locking structure is in an unlocked state, the sector door plate 42 is in a closed state, and when the boosting member 4 slides close to the front fixing seat 1, the sector door panel 42 can be opened and locked relative to the sliding sleeve 40 under the action of the trigger structure, so that the sector door panel 42 is kept in the opened state, and the boosting member 4 is still kept in the opened state in the resetting process until the locking structure is unlocked by the unlocking structure when the boosting member is close to the rear fixed seat 2, so that the sector door panel 42 is reset and kept in the closed state.
Referring to fig. 6 and 7 in detail, in this embodiment, two symmetrical sector door panels 42 are provided on the annular door frame 41, the annular door frame 41 is formed by surrounding an annular outer frame 410, an annular inner frame 411 and a connecting portion 412 which are concentrically arranged, as shown in the figure, the left and right sides of the annular inner frame 411 are connected with the annular outer frame 410 through the connecting portion 412, the two sector door panels 42 are located at 180 ° corresponding to the central angle, and are located at the upper and lower sides of the annular inner frame 411 respectively, and are hinged with the annular inner frame 411 through a rotating shaft which is arranged in parallel to the connecting portion 412, meanwhile, an annular blocking edge 413 is provided at the front side of the annular outer frame 410, the blocking edge 413 protrudes inward along the radial direction thereof, and an overlapping portion is necessarily provided between the projection of the blocking edge and the sector door panels 42 along the thickness direction, which mainly plays a role of limiting the sector door panels 42, and ensures that the sector door panels 42 can only rotate backwards.
In order to ensure that the sector door panel 42 inevitably rotates forward to reach the closed state when the locking structure is unlocked, a torsion spring is disposed between the sector door panel 42 and the annular inner frame 411 in the present embodiment, the torsion spring is sleeved on the rotating shaft, and two ends of the torsion spring are respectively fixed on the sector door panel 42 and the rotating shaft, so that the sector door panel 42 keeps a tendency of rotating forward.
Certainly, in order to improve the sealing effect when the fan-shaped door panel 42 is closed, in this embodiment, the outer diameters of the front fixing seat 1, the rear fixing seat 2, and the annular outer frame 410 are kept consistent, the outer sealing ring is sleeved on the circumferential side wall of the annular outer frame 410, and a dynamic sealing structure is also arranged between one side of the fan-shaped door panel 42 close to the connecting portion 412 and the connecting portion 412.
As shown in the figure, the locking structure of the present embodiment mainly includes a locking sleeve 43, the locking sleeve 43 is movably sleeved on the sliding sleeve 40, a spring locking pin 400 is disposed at the rear end of the sliding sleeve 40, the spring locking pin 400 is disposed along the radial direction of the sliding sleeve 40, a locking hole 430 matched with the spring locking pin 400 is disposed on the locking sleeve 43, the locking sleeve 42 is connected to the sector door panel 42 through a connecting rod 44, the connecting rod 44 is disposed obliquely along the length direction of the installation shaft 3, when the sector door panel 42 rotates backwards, the connecting rod 44 pushes the locking sleeve 42 to slide backwards, so that the spring locking pin 400 can be inserted into the corresponding locking hole 430, and the locking sleeve 42 is locked, so that the sector door panel 42 is maintained in an open state.
On this basis, the fan-shaped door panel 42 is provided with the supporting rod 420 corresponding to the connecting rod 44, the supporting rod 420 is obliquely arranged along the length direction of the installation shaft 3, the rear end of the supporting rod 420 is relatively closer to the installation shaft 3, two ends of the connecting rod 44 are respectively hinged with the supporting rod 420 and the locking sleeve 43, the required sliding and locking stroke of the locking sleeve 43 can be effectively shortened through the extended supporting rod 420, meanwhile, the occurrence of a rotation dead point of the connecting rod 44 is favorably prevented, and the reliability of the locking mechanism is improved.
Referring to fig. 3 and 5, the unlocking structure in this embodiment is an unlocking sleeve 20 disposed on the front side of the rear fixing base 2, as shown in the figure, the unlocking sleeve 20 is disposed coaxially with the mounting shaft 3, and has a hollow cylindrical shape with an inner diameter corresponding to the outer diameter of the locking sleeve 43, the front end of the unlocking sleeve 20 is open and has an inwardly inclined guide slope 200, when the boost member 4 slides backward under the action of the reset mechanism until the rear end of the sliding sleeve 40 slides into the unlocking sleeve 20, the locking sleeve 400 is pressed by the inner wall of the unlocking sleeve 20 to retract inward, the locking sleeve 43 can slide forward under the action of a torsion spring or fluid pressure to disengage from the locking spring 400, and accordingly, the sector door panel 42 also returns to the closed state.
As shown in the figures, the resetting mechanism in this application mainly includes a tension spring 5, the tension spring 5 is disposed along the length direction of the installation shaft 3, the front and rear ends of the tension spring 5 respectively act on the sliding sleeve 40 and the rear fixing seat 2, and in order to improve the reliability of the tension spring 5 and prolong the service life of the tension spring, in this embodiment, the tension spring 5 is installed in the installation shaft 3, that is, the installation shaft 3 is a hollow structure, the left and right sides of the installation shaft 3 are provided with symmetrically disposed sliding grooves 30, the sliding grooves 30 are disposed along the length direction of the installation shaft 3 and are through groove structures penetrating through both sides of the thickness of the side wall, the installation shaft 3 is provided with a push plate 31 adapted thereto, the push plate 31 includes a ring plate portion adapted to the inner diameter of the installation shaft 3 and a support lug disposed opposite to the sliding grooves 30, the support lug is in sliding fit with the sliding grooves 30 and fixedly connected with the inner wall of the sliding sleeve 40 through the sliding grooves 30, both ends of the tension spring 5 are respectively fixed at the rear side of the push plate 31 and the tail end of the installation shaft 3, the buckling or twisting of the tension spring 5 can be effectively prevented.
In this application, with spout 30 setting and the left and right sides of installation axle 3, be favorable to improving push pedal 31 slip reliability, set up spring locking pin 400 symmetry in the upper and lower both sides of sliding sleeve 40 simultaneously to the vertical plane mutually perpendicular of connecting rod 44 place and push pedal 31 is favorable to improving overall structure's stability.
As shown in fig. 1 to 5, the triggering structure in this embodiment is a support rod 10, the support rod 10 is fixedly disposed on the front fixing seat 1, is obliquely disposed along the length direction of the installation shaft 3, and extends toward the rear fixing seat 2, and the rear end of the support rod 10 is relatively closer to the installation shaft 3, when the boosting member 4 slides close to the front fixing seat 1, the rear end of the support rod 10 directly acts on the sector door panel 42 to push it open until the locking sleeve 43 locks.
Referring to fig. 1 to 9, in the boosting type drainage and gas production device for the horizontal section of the horizontal well in the shape of a serpentine, cross-shaped partition plates are respectively arranged in the flow passage a of the front fixing seat 1 and the flow passage a of the rear fixing seat 2, so as to respectively mount the stay bar 10 and the unlocking sleeve 20, and fix the front end and the rear end of the mounting shaft 3, and simultaneously ensure the respective strength.
The oil pipe 6 is internally provided with a low-lying part 60, the front fixing seat 1 is fixed in front of the low-lying part 60, the rear fixing seat 2 is fixed behind the low-lying part 60, before the oil pipe 6 enters a well, the low-lying part 60 can be basically determined at the parts after the oil pipe 6 enters the well by combining well structure according to well track data, the device can be loaded into the oil pipe at the corresponding position in advance according to the determination result, and the outer diameters of the front fixing seat 1, the rear fixing seat 2 and the annular outer frame 410 are adapted to the inner diameter of the oil pipe 6.
In the production process of the horizontal well, due to the fact that the gas-liquid density difference is large, gas-liquid separation can occur in the flow process of the horizontal section under the action of gravity, liquid is prone to generating liquid accumulation at the low-lying part 60 of the horizontal section with the serpentine structure, and once the liquid accumulation can seriously affect the production of the gas well. After the device is installed, when the boosting part 4 is at an initial position, the two fan-shaped door plates 42 are in a closed state, the gas pressure at the rear part of the two fan-shaped door plates is gradually increased, when the pressure is greater than the pulling force of the spring 5, the boosting part 4 can be pushed to move forwards, in the process, the fan-shaped door plates 42 are always kept in the closed state, the pore passage A between the front fixing seat 1 and the rear fixing seat 2 is in a separated state, when the fan-shaped door plates slide through the low-lying part 60, accumulated water at the position can be pushed forwards, when the fan-shaped door plates slide to the front fixing seat 1, the fan-shaped door plates 42 are opened by the support rods 10, meanwhile, the locking sleeves 43 are in a locked state, the pore passages A of the front fixing seat 1 and the rear fixing seat 2 are in a communicated state, and gas and liquid at the rear part of the fan-shaped door plates 42 can flow towards the front part of the oil pipe 6 through the front fixing seat 1.
The gas and liquid flow forward, the pressure behind the fan-shaped door panel 42 is gradually reduced until the pressure is smaller than the pulling force of the tension spring 5, the boosting part 4 integrally slides backward to be close to the rear fixing seat 2 under the action of the tension spring 5, the rear end of the sliding sleeve 40 is pulled into the unlocking sleeve 20, the locking sleeve 43 is unlocked, the fan-shaped door panel 42 rotates forward to be tightly attached to the blocking edge 413 under the action of the torsion spring and the rear fluid pressure, the closed state is kept, and the boosting part 4 is driven to slide forward again after the rear pressure rises again to perform secondary liquid pushing operation. The device completely uses the gas well self gas pressure as power, realizes the pushing treatment of the effusion, and prevents the 60 effusion at the low-lying part from influencing the normal exploitation.
Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.
Claims (9)
1. The utility model provides a boosting formula drainage gas production device that is used for horizontal well "snake" form horizontal segment which characterized in that: the fluid-conveying device comprises an installation shaft (3), a front fixing seat (1) and a rear fixing seat (2) which are oppositely arranged, wherein the front end and the rear end of the installation shaft (3) are fixedly connected with the front fixing seat (1) and the rear fixing seat (2) respectively, the front fixing seat (1) and the rear fixing seat (2) are disc-shaped, and are provided with pore channels (A) for fluid to flow along the axial direction of the front fixing seat (1) and the rear fixing seat (2);
the mounting shaft (3) is provided with a boosting part (4) which is movably arranged, when the mounting shaft is close to the front fixing seat (1), the pore passages (A) on the front fixing seat (1) and the rear fixing seat (2) are in a communicated state, when the mounting shaft is close to the rear fixing seat (2), the pore passages (A) on the front fixing seat (1) and the rear fixing seat (2) are blocked, and a reset mechanism is arranged between the boosting part (4) and the rear fixing seat (2);
the boosting part (4) comprises a sliding sleeve (40) movably sleeved on the mounting shaft (3), one end of the sliding sleeve (40) close to the front fixing seat (1) is fixedly sleeved with an annular door frame (41), and a fan-shaped door plate (42) rotatably mounted on the annular door frame (41), the inner diameter of the annular door frame (41) is smaller than the inner diameter of a pore passage (A) on the front fixing seat (1) and the rear fixing seat (2), a locking structure is arranged between the fan-shaped door plate (42) and the sliding sleeve (40), a triggering structure is arranged on the front fixing seat (1), and an unlocking structure is arranged on the rear fixing seat (2);
when boosting piece (4) are close to preceding fixing base (1), fan-shaped door plant (42) can open under the trigger structure effect to keep at open mode through locking structure, when boosting piece (4) are being close to back fixing base (2), the unlocking structure unblock, fan-shaped door plant (42) reset, and keep closed state.
2. The boosting type water drainage and gas production device for the horizontal well zigzag horizontal segment according to claim 1, characterized in that: the annular door frame (41) is provided with two symmetrical fan-shaped door panels (42), the annular door frame (41) comprises an annular outer frame (410) and an annular inner frame (411) which are concentrically arranged, wherein the annular inner frame (411) is fixedly sleeved on the sliding sleeve (40), and the two opposite sides of the annular inner frame (411) are fixedly connected with the annular outer frame (410) through connecting parts (412);
the two fan-shaped door panels (42) are symmetrically arranged at two sides of the annular inner frame (411) and hinged with the annular inner frame (411) through a rotating shaft, and the outer edge of one side of the annular outer frame (410) close to the front fixed seat (1) is provided with a blocking edge (413) extending inwards in the radial direction.
3. The boosting type water drainage and gas production device for the horizontal well zigzag horizontal segment according to claim 2, characterized in that: and a torsion spring is arranged between the fan-shaped door panel (42) and the annular inner frame (411), and the torsion spring applies a force approaching the blocking edge (413) to the fan-shaped door panel (42).
4. The boosting type water drainage and gas production device for the horizontal well zigzag horizontal segment according to any one of claims 1 to 3, characterized in that: a locking sleeve (43) is movably sleeved on the sliding sleeve (40), a spring locking pin (400) is arranged on the position, far away from the annular door frame (41), of the sliding sleeve (40), and a locking hole (430) matched with the spring locking pin (400) is formed in the locking sleeve (43);
a connecting rod (44) is arranged between the locking sleeve (43) and the sector door panel (42), when the sector door panel (42) is in a closed state, the locking sleeve (43) is positioned in front of the spring locking pin (400), and when the sector door panel (42) rotates backwards, the connecting rod (44) can push the locking sleeve (43) to slide backwards, and the spring locking pin (400) is inserted into the corresponding locking hole (430).
5. The boosting type water drainage and gas production device for the horizontal well zigzag horizontal segment according to claim 4, characterized in that: the fan-shaped door plate (42) is provided with a supporting rod (420) corresponding to the connecting rod (44), the supporting rod (420) extends backwards, the far end of the supporting rod inclines towards one side where the mounting shaft (3) is located, and two ends of the connecting rod (44) are hinged to the supporting rod (420) and the locking sleeve (43) respectively.
6. The boosting type water drainage and gas production device for the horizontal well zigzag horizontal segment according to claim 4, characterized in that: the front side of rear fixed seat (2) is equipped with unlocking sleeve (20), unlocking sleeve (20) internal diameter suits with lock sleeve (43), and the preceding terminal surface of unlocking sleeve (20) has guide inclined plane (200).
7. The boosting type water drainage and gas production device for the horizontal well zigzag horizontal segment according to claim 1, characterized in that: the resetting mechanism comprises a tension spring (5) arranged along the length direction of the mounting shaft (3), and the front end and the rear end of the tension spring (5) respectively act on the sliding sleeve (40) and the rear fixing seat (2).
8. The boosting type water drainage and gas production device for the horizontal well zigzag horizontal segment according to claim 7, characterized in that: install axle (3) and be hollow structure, just have spout (30) that the symmetry set up to both sides on it, install and have in axle (3) spout (30) sliding fit's push pedal (31), push pedal (31) and sliding sleeve (40) fixed connection, extension spring (5) are located installation axle (3), and both ends are fixed respectively at push pedal (31) and installation axle (3) tail end around it.
9. The boosting type water drainage and gas production device for the horizontal well zigzag horizontal segment according to claim 1, characterized in that: the triggering structure is a support rod (10) arranged corresponding to the fan-shaped door panel (42), and the support rod (10) obliquely extends along the length direction of the installation shaft (3).
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| CN202010789556.9A CN112610188B (en) | 2020-08-07 | 2020-08-07 | Boosting type water drainage and gas production device for horizontal well zigzag horizontal section |
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| CN202010789556.9A CN112610188B (en) | 2020-08-07 | 2020-08-07 | Boosting type water drainage and gas production device for horizontal well zigzag horizontal section |
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| CN112943174A (en) * | 2021-04-26 | 2021-06-11 | 陕西欣泰嘉石油科技有限公司 | Sealed shaft forced drainage tool and method for gas well |
| CN116163381B (en) * | 2022-12-20 | 2023-10-03 | 嘉兴市盛华人防设备有限公司 | Drainage structures and people's air defense equipment of people's air defense equipment |
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