CN113982547A - Same-well layered production and injection wellhead device with cable - Google Patents
Same-well layered production and injection wellhead device with cable Download PDFInfo
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- CN113982547A CN113982547A CN202111285683.6A CN202111285683A CN113982547A CN 113982547 A CN113982547 A CN 113982547A CN 202111285683 A CN202111285683 A CN 202111285683A CN 113982547 A CN113982547 A CN 113982547A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 91
- 238000002347 injection Methods 0.000 title claims abstract description 79
- 239000007924 injection Substances 0.000 title claims abstract description 79
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 62
- 238000007789 sealing Methods 0.000 claims description 24
- 238000009434 installation Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims 1
- 239000002994 raw material Substances 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 10
- 238000000605 extraction Methods 0.000 abstract description 7
- 239000003921 oil Substances 0.000 description 58
- 239000010720 hydraulic oil Substances 0.000 description 11
- 239000003129 oil well Substances 0.000 description 7
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 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
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
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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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
-
- 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
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/01—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for anchoring the tools or the like
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a cable-contained same-well layered production and injection wellhead device which comprises a production and injection assembly and a control assembly, wherein the production and injection assembly comprises a production pipe, a water injection pipe and an outer shell, a cavity is arranged inside the outer shell, one end of the water injection pipe is connected with the outer shell, the water injection pipe is sleeved on the production pipe, a gap is reserved between the inner wall of the water injection pipe and the outer wall of the production pipe, the production pipe extends into the cavity, the production pipe is connected with an oil outlet pipe, the oil outlet pipe penetrates through the outer shell, and a water inlet pipe is arranged on the outer shell; the control assembly comprises a first movable rod, a second movable rod and a liquid inlet pipe, the outer wall of the first movable rod is in sliding fit with the outer wall of the shell, a through hole is formed in the first movable rod, water can be injected into the water inlet pipe towards the inner portion of the shell, oil can be extracted through the oil extraction pipe and the oil outlet pipe, the injection and the extraction can be achieved, the number of well mouths is reduced, the occupied space is reduced, the production cost is reduced, and the improvement of the yield is facilitated.
Description
Technical Field
The invention relates to the technical field of oil field drilling and production equipment, in particular to a same-well layered production and injection wellhead device with a cable.
Background
In order to recover oil, several oil wells are required at the oil well site. The natural gas at the bottom of the well is in a high-temperature and high-pressure state generally due to the fact that the natural gas is deeper from the ground surface, and therefore the saturated water content of oil at the bottom of the well is large. Along with oil is exploited to the well head from the shaft bottom, water can be injected into the oil well while oil is exploited, the water injection effect is mainly to keep the bottom layer pressure and prevent collapse, and the concentration of oil liquid is diluted so as to facilitate the extraction of the electric submersible pump.
Most of the existing oil field development adopts a water injection well and an oil production well to form an injection and production well group, the number of required well mouths is large, the occupied space is large, the production cost is high, and the final yield is low.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
Therefore, the technical problems to be solved by the invention are as follows: most of the existing oil field development adopts a water injection well and an oil production well to form an injection and production well group, the number of required well mouths is large, the occupied space is large, the production cost is high, and the final yield is low.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a belt cable is with well layering production and injection wellhead assembly, it includes production and injection subassembly and control assembly, the production and injection subassembly includes oil production pipe, water injection pipe and shell body, the shell body is inside to be provided with the cavity, water injection pipe one end is connected the shell body, the water injection pipe cover is established on oil production pipe, and leave the space between water injection pipe inner wall and the oil production pipe outer wall, oil production pipe stretches into the cavity inside, and oil production pipe connects the oil outlet pipe, and the oil outlet pipe passes the shell body, be provided with the inlet tube on the shell body; the control assembly comprises a first movable rod, a second movable rod and a liquid inlet pipe, the outer wall of the first movable rod is in sliding fit with the inner wall of the outer shell, a through hole is formed in the first movable rod, the second movable rod is in sliding fit with the inner wall of the outer shell, the second movable rod is in sliding fit with the oil extraction pipe, and the liquid inlet pipe is arranged at one end, far away from the water injection pipe, of the outer shell.
As a preferred scheme of the same-well layered production and injection wellhead device with the cable, the invention comprises the following steps: the first movable rod is internally provided with a cavity, the through hole penetrates through the cavity, the second movable rod protrudes to form a fixed plate, and the outer wall of the fixed plate is in sliding fit with the inner wall of the cavity.
As a preferred scheme of the same-well layered production and injection wellhead device with the cable, the invention comprises the following steps: the shell body is provided with a through hole, the first movable rod is provided with a fixed rod, the fixed rod penetrates through the through hole in a sliding mode, and the fixed rod is provided with a clamping hole.
As a preferred scheme of the same-well layered production and injection wellhead device with the cable, the invention comprises the following steps: adopt notes subassembly still includes the retaining member, the retaining member includes fixed block and spacing axle, fixed block fixed connection shell body outer wall, spacing axle slide and pass the fixed block, and spacing axle corresponds the card hole setting to card hole radial dimension is greater than spacing axle.
As a preferred scheme of the same-well layered production and injection wellhead device with the cable, the invention comprises the following steps: the outer wall of the first movable rod is provided with a first sealing ring, the first sealing ring is matched with the inner wall of the outer shell, the outer wall of the second movable rod is provided with a second sealing ring, and the second sealing ring is matched with the inner wall of the oil production pipe.
As a preferred scheme of the same-well layered production and injection wellhead device with the cable, the invention comprises the following steps: flow valves are respectively arranged on the oil outlet pipe and the water inlet pipe.
As a preferred scheme of the same-well layered production and injection wellhead device with the cable, the invention comprises the following steps: and a third sealing ring is arranged on the inner wall of the through hole, and the inner wall of the third sealing ring is matched with the fixing rod.
As a preferred scheme of the same-well layered production and injection wellhead device with the cable, the invention comprises the following steps: still include supporting component, supporting component includes fixing base, fixed plate and support ring, the protruding backup pad that forms of fixing base inner wall, first flange outer wall is connected to the backup pad, and shell body one end is kept away from relatively to first flange fixed connection water injection pipe, support ring inner wall fixed connection shell body outer wall, support ring outer wall fixed connection fixed plate one end, fixed plate other end fixed connection fixing base.
As a preferred scheme of the same-well layered production and injection wellhead device with the cable, the invention comprises the following steps: still include the installation component, the installation component includes second flange, first extension pipe, second extension pipe, the second flange corresponds first flange setting, the first extension pipe outer wall of second flange fixed connection, and first extension pipe corresponds the water injection pipe setting, and first extension pipe cover is established on the second extension pipe, and the second extension pipe corresponds the oil production pipe setting to leave between first extension pipe and the second extension pipe and be provided with a plurality of bracing pieces between first extension pipe and the second extension pipe in space.
As a preferred scheme of the same-well layered production and injection wellhead device with the cable, the invention comprises the following steps: the first extension pipe is provided with a first connecting ring, the first connecting ring is provided with a first mounting groove corresponding to the water injection pipe, the second extension pipe is provided with a second connecting ring, and the second connecting ring is provided with a second mounting groove corresponding to the oil production pipe.
The invention has the beneficial effects that: the invention can inject water into the outer shell from the water inlet pipe, and simultaneously extract oil through the oil extraction pipe and the oil outlet pipe, thereby realizing injection and extraction of the same well, reducing the number of well mouths, reducing the occupied space, lowering the production cost and being beneficial to improving the yield.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
fig. 1 is a schematic view of the overall structure of the first, second, and third embodiments.
Fig. 2 is a cross-sectional view of the extraction assembly and control assembly of the first, second and third embodiments.
Fig. 3 is a sectional view of the outer case in the second embodiment.
Fig. 4 is a schematic structural view of a mounting assembly in a second embodiment.
FIG. 5 is a schematic cross-sectional view of a first elongated tube and a second elongated tube in a second embodiment.
Fig. 6 is an enlarged view of a portion a of fig. 1 in the second embodiment.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1 and 2, for a first embodiment of the present invention, the embodiment provides a layered production and injection wellhead device with a cable for the same well, which comprises a production and injection assembly 100 and a control assembly 200, wherein the production and injection assembly 100 comprises a production pipe 101, a water injection pipe 102 and an outer shell 103, a cavity 103a is arranged inside the outer shell 103, one end of the water injection pipe 102 is connected with the outer shell 103, the water injection pipe 102 is sleeved on the production pipe 101, a gap is left between the inner wall of the water injection pipe 102 and the outer wall of the production pipe 101, the production pipe 101 extends into the cavity 103a, the production pipe 101 is connected with the oil production pipe 101a, the oil production pipe 101a passes through the outer shell 103, and the outer shell 103 is provided with a water inlet pipe 102 a. Can be through inlet tube 102a toward the inside water injection of outer casing 103, water in the outer casing 103 can get into and carry out the water injection in the inlet tube 102a, oil in the oil production pipe 101 can discharge through oil production pipe 101a, because oil production pipe 101 and oil production pipe 101a pass outer casing 103, can be at the inside water injection of inlet tube 102a toward outer casing 103, produce oil through oil production pipe 101 and oil production pipe 101a simultaneously, can realize the injection and production with the well, reduce the well head number, reduce the space that occupies, and the production cost is reduced, be favorable to improving output, and the oil production is with the well
The control assembly 200 comprises a first movable rod 201, a second movable rod 202 and a liquid inlet pipe 203, the outer wall of the first movable rod 201 is in sliding fit with the inner wall of the outer shell 103, the first movable rod 201 can slide on the inner wall of the outer shell 103, when the first movable rod 201 slides to the position for shielding the water injection pipe 102, the water injection pipe 102 can be sealed, a through hole 201a is formed in the first movable rod 201, the through hole 201a is in sliding fit with the second movable rod 202, the second movable rod 202 can slide in the through hole 201a, the second movable rod 202 is in sliding fit with the oil production pipe 101, when the second movable rod 202 slides to the position for shielding the oil production pipe 101a, the oil production pipe 101a can be sealed, the liquid inlet pipe 203 is arranged at one end of the outer shell 103, which is relatively far away from the water injection pipe 102, the existing hydraulic pump is connected with the liquid inlet pipe 203, hydraulic oil is pumped into the liquid inlet pipe 203, the hydraulic oil enters the outer shell 103, which is relatively close to the side of the liquid inlet pipe 203, of the first movable rod 201, the first movable bar 201 and the second movable bar 202 can be pushed to move along with the increase of the hydraulic oil pressure by continuously pumping the hydraulic oil.
Example 2
Referring to fig. 1 to 6, a second embodiment of the present invention is based on the previous embodiment, and includes a cavity 201d disposed inside the first movable rod 201, a through hole 201a passing through the cavity 201d, a fixed plate 202a protruding from the second movable rod 202, and an outer wall of the fixed plate 202a slidably engaging with an inner wall of the cavity 201 d. The stationary plate 202a can function to limit the second movable bar 202, preventing the second movable bar 202 from slipping off the through-hole 201a of the first movable bar 201.
In this embodiment, a through hole 103b is formed in the outer housing 103, a fixed rod 201b is disposed on the first movable rod 201, the fixed rod 201b slides through the through hole 103b, a clamping hole 201b-1 is formed in the fixed rod 201b, and the clamping hole 201b-1 is disposed on a side surface of the fixed rod 201 b. The fixed rod 201b can slide in the through hole 103b, and can guide the first movable rod 201 to prevent relative rotation between the first movable rod 201 and the outer shell 103.
In this embodiment, the injection production assembly 100 further includes a locking member 104, the locking member 104 includes a fixing block 104a and a limiting shaft 104b, the fixing block 104a is fixedly connected to the outer wall of the outer housing 103, the limiting shaft 104b slides through the fixing block 104a, the limiting shaft 104b is disposed corresponding to the locking hole 201b-1, and the radial dimension of the locking hole 201b-1 is greater than that of the limiting shaft 104 b. When the limiting shaft 104b slides in the fixed block 104a, the relative position between the fixed rod 201b and the outer shell 103 can be fixed after the limiting shaft 104b is inserted into the clamping hole 201b-1, and at this time, the first movable rod 201 cannot slide on the inner wall of the outer shell 103.
In this embodiment, specifically, the outer wall of the first movable rod 201 is provided with a first sealing ring 201c, and the first sealing ring 201c is matched with the inner wall of the outer housing 103, and the first sealing ring 201c can seal the outer wall of the first movable rod 201 and the inner wall of the outer housing 103 before the first movable rod and the inner wall of the outer housing 103, so as to prevent water leakage; the outer wall of the second movable rod 202 is provided with a second sealing ring 202c, the second sealing ring 202c is matched with the inner wall of the oil production pipe 101, and the second sealing ring 202c can seal the space between the outer wall of the second movable rod 202 and the inner wall of the oil production pipe 101.
In this embodiment, the flow valves 105 are respectively disposed on the oil outlet pipe 101a and the water inlet pipe 102a, and the flow rates of the oil outlet pipe 101a and the water inlet pipe 102a can be respectively adjusted through the flow valves 105.
In this embodiment, the inner wall of the through hole 103b is provided with a third sealing ring 103b-1, and the inner wall of the third sealing ring 103b-1 is matched with the fixing rod 201b, so that the third sealing ring 103b-1 can seal the inner wall of the through hole 103b and the fixing rod 201b, and prevent oil leakage from occurring between the inner wall of the through hole 103b and the fixing rod 201 b.
In this embodiment, the supporting assembly 300 further includes a supporting assembly 300, the supporting assembly 300 includes a fixing base 301, a fixing plate 302 and a supporting ring 303, the inner wall of the fixing base 301 protrudes to form a supporting plate 301a, the supporting plate 301a is connected to the outer wall of the first flange 301b, the first flange 301b is fixedly connected to the water injection pipe 102 and is relatively far away from one end of the outer shell 103, the inner wall of the supporting ring 303 is fixedly connected to the outer wall of the outer shell 103, the outer wall of the supporting ring 303 is fixedly connected to one end of the fixing plate 302, the other end of the fixing plate 302 is fixedly connected to the fixing base 301, and the fixing support effect can be achieved on the outer shell 103 and the water injection pipe 102.
In this embodiment, the installation assembly 400 is further included, the installation assembly 400 includes a second flange 401, a first elongated tube 402, and a second elongated tube 403, the second flange 401 is disposed corresponding to the first flange 301b, the second flange 401 can be connected to the first flange 301b through the existing bolts, the second flange 401 is fixedly connected to the outer wall of the first elongated tube 402, the first elongated tube 402 is disposed corresponding to the water injection tube 102, the radial dimensions of the first elongated tube 402 and the water injection tube 102 are the same, the first elongated tube 402 is sleeved on the second elongated tube 403, the second elongated tube 403 is disposed corresponding to the oil production tube 101, the radial dimensions of the second elongated tube 403 and the oil production tube 101 are the same, a gap is left between the first elongated tube 402 and the second elongated tube 403, water injected between the water injection tube 102 and the oil production tube 101 can enter the bottom of the oil well through the gap between the first elongated tube 402 and the second elongated tube 403, the bottom oil layer pressure is kept, collapse is prevented, the oil concentration is diluted, the electric submersible pump is convenient to extract, a plurality of supporting rods 404 are arranged between the first elongated tube 402 and the second elongated tube 403, and the supporting rods 404 can support and fix the first elongated tube 402 and the second elongated tube 403.
In this embodiment, a first connecting ring 402a is disposed on the first elongated tube 402, a first mounting groove 402b is disposed on the first connecting ring 402a corresponding to the water injection tube 102, and the first connecting ring 402a is used to facilitate the butt connection of the water injection tube 102 and the first elongated tube 402; the second extension pipe 403 is provided with a second connection ring 403a, the second connection ring 403a is provided with a second installation groove 403b corresponding to the oil production pipe 101, and the oil production pipe 101 and the second extension pipe 403 are conveniently combined and butted together through the second connection ring 403 a.
Example 3
Referring to fig. 1 and 2, a third embodiment of the present invention is based on the previous embodiment, in which an existing hydraulic pump is connected to a fluid inlet pipe 203, hydraulic oil is pumped into the fluid inlet pipe 203, the hydraulic oil enters into an interior of an outer housing 103 on a side of a first movable rod 201 relatively close to the fluid inlet pipe 203, the first movable rod 201 and a second movable rod 202 can be pushed to move along with an increase of hydraulic oil pressure by continuously pumping the hydraulic oil, when the first movable rod 201 slides to a position where the first movable rod covers a water injection pipe 102, the sealing of the water injection pipe 102 can be achieved, when the second movable rod 202 slides to cover a oil outlet pipe 101a, the sealing of the oil outlet pipe 101a can be achieved, although the flow rates of the oil outlet pipe 101a and the water inlet pipe 102a can be respectively adjusted or sealed through a flow rate valve 105, but the existing flow rate valve 105 has a limited pressure-bearing capacity due to a large pressure inside an oil well, the first movable rod 201 and the second movable rod 202 can be pushed to move to seal the oil outlet pipe 101a and the water inlet pipe 102a through the increase of the hydraulic oil pressure, the flow valve 105 can be protected, meanwhile, the sealing strength of the oil outlet pipe 101a and the water inlet pipe 102a is guaranteed, and potential safety hazards are reduced.
When the limiting shaft 104b slides in the fixing block 104a, after the limiting shaft 104b is inserted into the clamping hole 201b-1, the relative position between the fixing rod 201b and the outer shell 103 can be fixed, at the moment, the first movable rod 201 cannot slide on the inner wall of the outer shell 103, hydraulic oil is continuously pumped into the fixing rod from the liquid inlet pipe 203, the hydraulic oil can only push the second movable rod 202 to move under the action of pressure, the oil outlet pipe 101a is sealed, water is injected into the oil well when the adoption port is closed, the bottom layer pressure of the oil well is favorably kept, collapse is prevented, the concentration of the oil is diluted, and the electric submersible pump is convenient to extract.
It is important to note that the construction and arrangement of the present application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Moreover, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the invention, or those unrelated to enabling the invention).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a belt cable is with well layering production and injection wellhead assembly which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the production and injection assembly (100) comprises an oil production pipe (101), a water injection pipe (102) and an outer shell (103), a cavity (103a) is formed in the outer shell (103), one end of the water injection pipe (102) is connected with the outer shell (103), the water injection pipe (102) is sleeved on the oil production pipe (101), a gap is reserved between the inner wall of the water injection pipe (102) and the outer wall of the oil production pipe (101), the oil production pipe (101) extends into the cavity (103a), the oil production pipe (101) is connected with an oil outlet pipe (101a), the oil outlet pipe (101a) penetrates through the outer shell (103), and a water inlet pipe (102a) is arranged on the outer shell (103);
control assembly (200), control assembly (200) includes first movable rod (201), second movable rod (202) and feed liquor pipe (203), first movable rod (201) outer wall sliding fit shell body (103) inner wall is provided with through-hole (201a) on first movable rod (201) to through-hole (201a) inside sliding fit second movable rod (202), second movable rod (202) sliding fit oil production pipe (101) cooperation, water injection pipe (102) one end is kept away from relatively in shell body (103) and is provided with feed liquor pipe (203).
2. The wireline layered production and injection wellhead assembly of claim 1, further comprising: the inner part of the first movable rod (201) is provided with a cavity (201d), the through hole (201a) penetrates through the cavity (201d), the second movable rod (202) protrudes out to form a fixed plate (202a), and the outer wall of the fixed plate (202a) is in sliding fit with the inner wall of the cavity (201 d).
3. The wireline layered production and injection wellhead assembly of claim 2, further comprising: the shell body (103) is provided with a through hole (103b), the first movable rod (201) is provided with a fixed rod (201b), the fixed rod (201b) penetrates through the through hole (103b) in a sliding mode, and the fixed rod (201b) is provided with a clamping hole (201 b-1).
4. A cabled layered production and injection wellhead assembly as claimed in claim 3 in the same well wherein: adopt notes subassembly (100) still include retaining member (104), retaining member (104) include fixed block (104a) and spacing axle (104b), fixed block (104a) fixed connection shell body (103) outer wall, and spacing axle (104b) slide and pass fixed block (104a), and spacing axle (104b) correspond card hole (201b-1) and set up to card hole (201b-1) radial dimension is greater than spacing axle (104 b).
5. The cabled layered production and injection wellhead assembly of claim 4, further comprising: the outer wall of the first movable rod (201) is provided with a first sealing ring (201c), the first sealing ring (201c) is matched with the inner wall of the outer shell (103), the outer wall of the second movable rod (202) is provided with a second sealing ring (202c), and the second sealing ring (202c) is matched with the inner wall of the oil production pipe (101).
6. The wireline layered production and injection wellhead assembly of claim 1, further comprising: and the oil outlet pipe (101a) and the water inlet pipe (102a) are respectively provided with a flow valve (105).
7. The cabled layered production and injection wellhead assembly of claim 4, further comprising: the inner wall of the through hole (103b) is provided with a third sealing ring (103b-1), and the inner wall of the third sealing ring (103b-1) is matched with the fixing rod (201 b).
8. The wireline layered production and injection wellhead assembly of claim 1, further comprising: still include supporting component (300), supporting component (300) are including fixing base (301), fixed plate (302) and support ring (303), fixing base (301) inner wall protrusion forms backup pad (301a), and first flange (301b) outer wall is connected in backup pad (301a), and shell body (103) one end is kept away from relatively in first flange (301b) fixed connection water injection pipe (102), and support ring (303) inner wall fixed connection shell body (103) outer wall, support ring (303) outer wall fixed connection fixed plate (302) one end, fixed plate (302) other end fixed connection fixing base (301).
9. The wireline layered production and injection wellhead assembly of claim 8, further comprising: still include installation component (400), installation component (400) include second flange (401), first extension pipe (402), second extension pipe (403), second flange (401) correspond first flange (301b) setting, the first extension pipe (402) outer wall of second flange (401) fixed connection, first extension pipe (402) correspond water injection pipe (102) setting, first extension pipe (402) cover is established on second extension pipe (403), second extension pipe (403) correspond oil production pipe (101) setting to it is provided with a plurality of bracing pieces (404) to leave the space between first extension pipe (402) and second extension pipe (403).
10. The wireline-uphole unit of claim 9, wherein: the first extension pipe (402) is provided with a first connecting ring (402a), the first connecting ring (402a) is provided with a first mounting groove (402b) corresponding to the water injection pipe (102), the second extension pipe (403) is provided with a second connecting ring (403a), and the second connecting ring (403a) is provided with a second mounting groove (403b) corresponding to the oil production pipe (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111285683.6A CN113982547A (en) | 2021-11-02 | 2021-11-02 | Same-well layered production and injection wellhead device with cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111285683.6A CN113982547A (en) | 2021-11-02 | 2021-11-02 | Same-well layered production and injection wellhead device with cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113982547A true CN113982547A (en) | 2022-01-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115163044A (en) * | 2022-07-06 | 2022-10-11 | 西南石油大学 | 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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