CN115163044A - Method and device for increasing recovery ratio by synchronous injection and production in same well of tight oil reservoir horizontal well - Google Patents
Method and device for increasing recovery ratio by synchronous injection and production in same well of tight oil reservoir horizontal well Download PDFInfo
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- CN115163044A CN115163044A CN202210789646.7A CN202210789646A CN115163044A CN 115163044 A CN115163044 A CN 115163044A CN 202210789646 A CN202210789646 A CN 202210789646A CN 115163044 A CN115163044 A CN 115163044A
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- 238000011084 recovery Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 13
- 238000002347 injection Methods 0.000 title claims abstract description 11
- 239000007924 injection Substances 0.000 title claims abstract description 11
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 238000005553 drilling Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 2
- 230000006978 adaptation Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000003129 oil well Substances 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
- E21B47/00—Survey of boreholes or wells
- E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
- E21B47/017—Protecting measuring instruments
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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
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
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Abstract
The invention discloses a method and a device for increasing recovery efficiency of a tight oil reservoir horizontal well by synchronous injection and production in the same well, wherein the method and the device comprise a bottom stretching-in component and at least one growth connecting component, the growth connecting component can be connected above the bottom stretching-in component so as to increase the total length, the device also comprises at least two clamping components used for assisting the growth connecting component to be installed on the bottom stretching-in component, and the clamping components are convenient for the growth connecting component to be installed on the clamping components on the bottom stretching-in component. According to the invention, the bottom-extending component and the at least one growth connecting component are arranged, so that a measuring instrument which is lowered into a drilled well can be protected, the bottom-extending component and the growth connecting component are convenient to mount and dismount, and the measuring instrument can enter or leave the drilled well more quickly, so that a corresponding measuring value can be obtained more quickly, and the recovery ratio is improved.
Description
Technical Field
The invention relates to the technical field of oil well exploration equipment, in particular to a method and a device for increasing recovery efficiency by synchronous injection and production in the same well of a tight oil reservoir horizontal well.
Background
Along with the continuous deep oil exploration and the continuous development of a drilling technology, the well logging difficulty is higher and higher, so that the construction safety risk is reduced to the maximum extent, the well logging time efficiency is improved, stratum information is timely acquired, the exploration and development requirements are met, and the method and the device for synchronously injecting and extracting the tight oil reservoir horizontal well in the same well to improve the recovery ratio can solve the problem.
Disclosure of Invention
The invention aims to solve the problems in the background technology, and provides a method and a device for increasing the recovery ratio by synchronously injecting and extracting a tight oil reservoir horizontal well in the same well.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a method and device of tight oil reservoir horizontal well synchronous injection-production enhanced oil recovery ratio with well, stretch into subassembly and at least one growth coupling assembling including a bottom, it can connect to increase coupling assembling stretch into the subassembly top in the bottom, and then increase total length, the device still includes at least two and is used for supplementarily it installs to increase coupling assembling the joint subassembly on the subassembly is stretched into to the bottom, the joint subassembly is convenient for it installs to increase coupling assembling the joint subassembly on the subassembly is stretched into to the bottom.
Preferably, the bottom stretching assembly comprises a first cylinder, the first cylinder is of a hollow structure, a first ring groove is formed in the outer wall of the first cylinder, two first vertical grooves and a second ring groove are formed in the inner wall of the first cylinder, and the second ring groove is communicated with the first vertical grooves.
Preferably, first circular slot and two first spacing grooves have still been seted up to first drum, first circular slot sliding connection has first round bar, the first link of one end fixedly connected with of first round bar, first link with first vertical groove looks adaptation, the first stopper of wherein both sides fixedly connected with of first link, first stopper with first spacing groove looks adaptation, the outer wall cover of first round bar is equipped with first elastic component, the both ends of first elastic component respectively with first link with first vertical inslot lateral wall is connected, the one end fixedly connected with disc of first drum.
Preferably, the growth connecting assembly comprises a second cylinder, the second cylinder is of a hollow structure, a third ring groove is formed in the outer wall of the second cylinder, two second vertical grooves and a fourth ring groove are formed in the inner wall of the second cylinder, and the fourth ring groove is communicated with the two second vertical grooves.
Preferably, a second circular groove and two second limiting grooves are further formed in the second cylinder, the second circular groove is connected with a second circular rod in a sliding mode, one end of the second circular rod is fixedly connected with a second connecting block, the second connecting block is matched with the second vertical groove, second limiting blocks are fixedly connected to two sides of the second connecting block, the second limiting blocks are matched with the second limiting grooves, a second elastic piece is sleeved on the outer wall of the second circular rod, two ends of the second elastic piece are connected with the second connecting block and the inner side wall of the second vertical groove respectively, a ring body is fixedly connected to one end of the second cylinder, and two mounting blocks are fixedly connected to the outer wall of the ring body.
Preferably, the joint subassembly includes a joint ring, two connecting plates of outer wall fixedly connected with of joint ring, the slotted hole has been seted up to the connecting plate, two spouts have been seted up to the joint ring, spout sliding connection has the arc piece, arc piece fixedly connected with horizontal pole, the other end fixedly connected with plate body of horizontal pole, the outer wall cover of horizontal pole is equipped with the third elastic component, the both ends of third elastic component respectively with the spout with the plate body is connected.
A method for increasing recovery ratio by synchronous injection and production in the same well of a tight oil reservoir horizontal well comprises the following specific steps:
s1: when logging, locking two connecting plates in one clamping assembly by using hoisting and a rope on a drilling platform, and enabling a clamping ring in the clamping assembly to clamp a first cylinder, so that the first cylinder is positioned on the drilling platform and corresponds to a measured wellhead but does not enter the measured wellhead;
s2: placing a measuring instrument in the first cylinder;
s3: removing the hoisting and rope used by the first cylinder, locking the hoisting and rope on the two connecting plates in the other clamping assembly, clamping the second cylinder by the clamping ring in the clamping assembly, placing the second cylinder on the first cylinder, and rotating the second cylinder to connect the second cylinder with the first cylinder;
s4: so that the total length of the bottom-entering assembly and the lengthening connection assembly is greater than that of the measuring instrument.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the bottom extending assembly and the at least one growth connecting assembly are arranged, so that a measuring instrument which is lowered into a well can be protected, the bottom extending assembly and the growth connecting assembly are convenient to mount and dismount, the measuring instrument can be quickly moved into or separated from the well, a corresponding measuring value can be quickly obtained, and the recovery ratio is further improved.
Drawings
FIG. 1 is a schematic structural diagram of a bottom-penetrating component in the method and device for increasing recovery ratio by synchronous injection and production in the same well of a tight reservoir horizontal well, which are provided by the invention;
FIG. 2 is an exploded view of the cutaway structure of FIG. 1;
FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;
FIG. 4 is a schematic structural diagram of one of the growth connection assemblies in the method and the device for increasing the recovery ratio by synchronous injection and production in the same well of the tight reservoir horizontal well, which are provided by the invention;
FIG. 5 is an exploded view of the cutaway structure of FIG. 4;
FIG. 6 is an enlarged view of the structure at B in FIG. 5;
FIG. 7 is a schematic structural diagram of a clamping component in the method and the device for increasing the recovery ratio by synchronous injection and production in the same well of a tight reservoir horizontal well, which are provided by the invention;
fig. 8 is an exploded view of the cut-away structure of fig. 7.
In the figure:
10. a first cylinder; 11. a first ring groove; 12. a first vertical slot; 13. a second ring groove; 14. a first circular groove; 15. a first limit groove; 16. a first round bar; 17. a first connection block; 18. a first stopper; 19. a first elastic member; 110. a disc;
20. a second cylinder; 21. a third ring groove; 22. a second vertical slot; 23. a fourth ring groove; 24. a second circular groove; 25. a second limit groove; 26. a second round bar; 27. a second connecting block; 28. a second limiting block; 29. a second elastic member; 210. a ring body; 211. mounting blocks;
30. a snap ring; 31. a connecting plate; 32. a slot; 33. a chute; 34. an arc-shaped block; 35. a cross bar; 36. a plate body; 37. and a third elastic member.
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 embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be 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.
Referring to fig. 1-8, a method and a device for increasing recovery ratio of tight oil reservoir and horizontal well synchronous injection and production, comprises a bottom stretching-in component and at least one growth connecting component, wherein the growth connecting component can be connected above the bottom stretching-in component, so that the total length is increased, the device further comprises at least two clamping components used for assisting the growth connecting component to be installed on the bottom stretching-in component, and the clamping components are convenient for the growth connecting component to be installed on the clamping components on the bottom stretching-in component.
The length of the measuring instrument is long, a structure for protecting the measuring instrument is needed, and the measuring instrument can be put into a well together;
the structure of the protective measuring instrument is formed by the bottom extending assembly and the growth connecting assembly, and in addition, the total length of the structure of the protective measuring instrument can be increased by increasing the number of the growth connecting assemblies.
Further, the bottom stretching assembly comprises a first cylinder 10, the first cylinder 10 is of a hollow structure, a first ring groove 11 is formed in the outer wall of the first cylinder 10, two first vertical grooves 12 and a second ring groove 13 are formed in the inner wall of the first cylinder 10, and the second ring groove 13 is communicated with the two first vertical grooves 12.
Further, first circular slot 14 and two first spacing grooves 15 have still been seted up to first drum 10, first circular slot 14 sliding connection has first round bar 16, the first link 17 of one end fixedly connected with of first round bar 16, first link 17 and first vertical groove 12 looks adaptation, the first stopper 18 of wherein both sides fixedly connected with of first link 17, first stopper 18 and first spacing groove 15 looks adaptation, the outer wall cover of first round bar 16 is equipped with first elastic component 19, the both ends of first elastic component 19 are connected with first link 17 and first vertical groove 12 inside wall respectively, the one end fixedly connected with disc 110 of first drum 10.
Wherein, the first elastic member 19 is preferably a spring fitting capable of pushing the first connecting block 17 away from the first circular groove 14;
the arrangement of the first limiting groove 15 and the first limiting block 18 can enable the first connecting block 17 to stably stay at a fixed position in the first vertical groove 12;
the depth of the first circular groove 14 is greater than the length of the first circular rod 16.
Further, the growth connecting assembly comprises a second cylinder 20, the second cylinder 20 is of a hollow structure, a third ring groove 21 is formed in the outer wall of the second cylinder 20, two second vertical grooves 22 and a fourth ring groove 23 are formed in the inner wall of the second cylinder 20, and the fourth ring groove 23 is communicated with the two second vertical grooves 22.
Further, second circular groove 24 and two second spacing grooves 25 have still been seted up to second drum 20, second circular groove 24 sliding connection has second round bar 26, the one end fixedly connected with second connecting block 27 of second round bar 26, second connecting block 27 and the adaptation of second vertical groove 22 looks, wherein both sides fixedly connected with second stopper 28 of second connecting block 27, second stopper 28 and the adaptation of second spacing groove 25 looks, the outer wall cover of second round bar 26 is equipped with second elastic component 29, the both ends of second elastic component 29 are connected with second connecting block 27 and the vertical inslot wall of second 22 respectively, the one end fixedly connected with ring body 210 of second drum 20, the outer wall fixedly connected with of ring body 210 two installation pieces 211.
Wherein, the second elastic member 29 is preferably a spring fitting capable of pushing the second connecting block 27 away from the second circular groove 24;
the second limiting groove 25 and the second limiting block 28 are arranged to enable the second connecting block 27 to stably stay at a fixed position in the second vertical groove 22;
the depth of the second circular groove 24 is greater than the length of the second circular rod 26.
Further, the joint subassembly includes a joint ring 30, two connecting plates 31 of the outer wall fixedly connected with of joint ring 30, slotted hole 32 has been seted up to connecting plate 31, two spouts 33 have been seted up to joint ring 30, spout 33 sliding connection has arc piece 34, 34 fixedly connected with horizontal pole 35 of arc piece, the other end fixedly connected with plate body 36 of horizontal pole 35, the outer wall cover of horizontal pole 35 is equipped with third elastic component 37, the both ends of third elastic component 37 are connected with spout 33 and plate body 36 respectively.
The third elastic element 37 is preferably a spring fitting, which enables the plate body 36 to be tightly attached to the outer wall of the snap ring 30;
pulling plate body 36 for in the arc piece 34 gets into corresponding spout 33, third elastic component 37 is compressed, at this moment, cup joints joint ring 30 on first drum 10 or second drum 20, later loosens plate body 36, under the elastic force of third elastic component 37, arc piece 34 extrudees the outer wall of first drum 10 or second drum 20, removes joint ring 30 for arc piece 34 card is in first annular 11 or third annular 21 department, realizes the joint operation.
A method for increasing the recovery ratio by synchronously injecting and extracting a tight oil reservoir and a horizontal well in the same well is characterized by comprising the following specific steps:
s1: during logging, the hoisting and the rope on the drilling platform are utilized to lock the two connecting plates 31 in one clamping assembly, and the clamping ring 30 in the clamping assembly clamps the first cylinder 10, so that the first cylinder 10 is positioned on the drilling platform and corresponds to a measured wellhead but does not enter the measured wellhead;
s2: placing the measuring instrument in the first cylinder 10;
s3: removing the hoist and rope used with the first cylinder 10 and unlocking the hoist and rope to the two connecting plates 31 in the other clamping assembly, allowing the clamping ring 30 in the clamping assembly to clamp the second cylinder 20, allowing the second cylinder 20 to be placed on the first cylinder 10, and rotating the second cylinder 20 to connect the second cylinder 20 to the first cylinder 10;
s4: so that the total length of the bottom-entering assembly and the lengthening connection assembly is greater than that of the measuring instrument.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The utility model provides a device of tight oil reservoir horizontal well synchronous injection-production enhanced oil recovery ratio with well, its characterized in that stretches into subassembly and at least one growth coupling assembling including a bottom, it can connect to increase coupling assembling the bottom stretches into the subassembly top, and then increases total length, the device still includes at least two and is used for supplementarily it installs to increase coupling assembling the joint subassembly on the subassembly is stretched into to the bottom, the joint subassembly is convenient for increase coupling assembling installs the joint subassembly on the subassembly is stretched into to the bottom.
2. The device for synchronously injecting and extracting the enhanced oil recovery rate in the same well of the tight oil reservoir and the horizontal well according to claim 1, wherein the bottom-extending component comprises a first cylinder (10), the first cylinder (10) is of a hollow structure, a first annular groove (11) is formed in the outer wall of the first cylinder (10), two first vertical grooves (12) and a second annular groove (13) are formed in the inner wall of the first cylinder (10), and the second annular groove (13) is communicated with the two first vertical grooves (12).
3. The device for improving the recovery efficiency of the tight oil reservoir horizontal well through synchronous injection and production in the same well is characterized in that a first circular groove (14) and two first limiting grooves (15) are further formed in the first cylinder (10), the first circular groove (14) is connected with a first circular rod (16) in a sliding mode, one end of the first circular rod (16) is fixedly connected with a first connecting block (17), the first connecting block (17) is matched with the first vertical groove (12), first limiting blocks (18) are fixedly connected to two sides of the first connecting block (17), the first limiting blocks (18) are matched with the first limiting grooves (15), a first elastic piece (19) is sleeved on the outer wall of the first circular rod (16), two ends of the first elastic piece (19) are respectively connected with the first connecting block (17) and the inner side wall of the first vertical groove (12), and one end of the first cylinder (10) is fixedly connected with a disc (110).
4. The device for synchronously injecting and extracting the enhanced oil recovery rate in the same well of the tight reservoir horizontal well according to claim 1, wherein the growth connecting assembly comprises a second cylinder (20), the second cylinder (20) is of a hollow structure, a third annular groove (21) is formed in the outer wall of the second cylinder (20), two second vertical grooves (22) and a fourth annular groove (23) are formed in the inner wall of the second cylinder (20), and the fourth annular groove (23) is communicated with the two second vertical grooves (22).
5. The device for improving the recovery efficiency of the tight oil reservoir horizontal well by synchronously injecting and extracting the oil in the same well according to claim 4, wherein a second circular groove (24) and two second limiting grooves (25) are further formed in the second cylinder (20), the second circular groove (24) is slidably connected with a second circular rod (26), one end of the second circular rod (26) is fixedly connected with a second connecting block (27), the second connecting block (27) is matched with the second vertical groove (22), two sides of the second connecting block (27) are fixedly connected with second limiting blocks (28), the second limiting blocks (28) are matched with the second limiting grooves (25), a second elastic piece (29) is sleeved on the outer wall of the second circular rod (26), two ends of the second elastic piece (29) are respectively connected with the second connecting block (27) and the inner side wall of the second vertical groove (22), one end of the second cylinder (20) is fixedly connected with a ring body (210), and the outer wall of the second cylinder (210) is fixedly connected with two installation blocks (211).
6. The device for improving the recovery efficiency of the tight oil reservoir horizontal well by synchronous injection and production in the same well is characterized in that the clamping component comprises a clamping ring (30), two connecting plates (31) are fixedly connected to the outer wall of the clamping ring (30), slotted holes (32) are formed in the connecting plates (31), two sliding grooves (33) are formed in the clamping ring (30), the sliding grooves (33) are slidably connected with arc-shaped blocks (34), the arc-shaped blocks (34) are fixedly connected with cross rods (35), plate bodies (36) are fixedly connected to the other ends of the cross rods (35), third elastic parts (37) are sleeved on the outer wall of the cross rods (35), and two ends of the third elastic parts (37) are respectively connected with the sliding grooves (33) and the plate bodies (36).
7. The method for increasing the recovery ratio by synchronously injecting and extracting the tight oil reservoir and the horizontal well in the same well is characterized by comprising the following specific steps of: s1: during logging, two connecting plates (31) in one clamping assembly are locked by hoisting and a rope on a drilling platform, and a clamping ring (30) in the clamping assembly clamps a first cylinder (10), so that the first cylinder (10) is positioned on the drilling platform and corresponds to a measured wellhead but does not enter the measured wellhead; s2: placing a measuring instrument in a first cylinder (10); s3: removing the hoisting and rope used with the first cylinder (10), locking the hoisting and rope to two connecting plates (31) in another clamping assembly, clamping a second cylinder (20) by a clamping ring (30) in the clamping assembly, enabling the second cylinder (20) to be placed on the first cylinder (10), and rotating the second cylinder (20) to enable the second cylinder (20) to be connected with the first cylinder (10); s4: so that the total length of the bottom-entering assembly and the lengthening connection assembly is greater than that of the measuring instrument.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210789646.7A CN115163044A (en) | 2022-07-06 | 2022-07-06 | Method and device for increasing recovery ratio by synchronous injection and production in same well of tight oil reservoir horizontal well |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210789646.7A CN115163044A (en) | 2022-07-06 | 2022-07-06 | Method and device for increasing recovery ratio by synchronous injection and production in same well of tight oil reservoir horizontal well |
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