CN112943152A - Water finding and water plugging integrated tubular column for oil field horizontal well and water finding and water plugging method thereof - Google Patents
Water finding and water plugging integrated tubular column for oil field horizontal well and water finding and water plugging method thereof Download PDFInfo
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- CN112943152A CN112943152A CN202110031389.6A CN202110031389A CN112943152A CN 112943152 A CN112943152 A CN 112943152A CN 202110031389 A CN202110031389 A CN 202110031389A CN 112943152 A CN112943152 A CN 112943152A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 228
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 38
- 238000003780 insertion Methods 0.000 claims abstract description 14
- 230000037431 insertion Effects 0.000 claims abstract description 14
- 239000012530 fluid Substances 0.000 claims description 23
- 239000003129 oil well Substances 0.000 claims description 23
- 238000004519 manufacturing process Methods 0.000 claims description 22
- 238000005086 pumping Methods 0.000 claims description 17
- 238000001514 detection method Methods 0.000 claims description 8
- 239000004576 sand Substances 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 4
- 238000004458 analytical method Methods 0.000 claims description 3
- 238000011001 backwashing Methods 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 235000020681 well water Nutrition 0.000 claims description 3
- 239000002349 well water Substances 0.000 claims description 3
- 238000003556 assay Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/122—Multiple string packers
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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
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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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/126—Packers; Plugs with fluid-pressure-operated elastic cup or skirt
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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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
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- Life Sciences & Earth Sciences (AREA)
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- Mining & Mineral Resources (AREA)
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- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
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- Mechanical Engineering (AREA)
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Abstract
The invention provides a water exploration and water plugging integrated tubular column for an oil field horizontal well, which comprises: the device comprises a pipe column, a first water finding packer, a one-way liquid inlet, a second water finding packer, a water plugging packer and an oil pipe; the lower end of the pipe column is connected with a plug; the first water finding packer is connected to the pipe column above the plug; the one-way liquid inlet is arranged on the pipe column above the first water finding packer; the second water finding packer is connected to the pipe column above the one-way liquid inlet; the water plugging packer is connected to the pipe column above the second water finding packer; the lower end of the oil pipe is inserted with the water plugging packer through the insertion pipe, and a deep water swab is arranged below the oil pipe. The invention also provides a water exploration and water shutoff method for the horizontal well of the oil field, which is implemented by adopting the water exploration and water shutoff integrated tubular column for the horizontal well of the oil field.
Description
Technical Field
The invention relates to the field of oil field horizontal well oil extraction equipment, in particular to an oil field horizontal well water exploration and water plugging integrated pipe column.
Background
The well body structure of the horizontal well is different from that of a straight well, so that the phenomenon of large amount of water production is easier to occur in the oil extraction process, once the horizontal well produces water, the formation energy is consumed, the oil production is reduced, the development effect is seriously influenced, and the main treatment means is to find the water outlet position and effectively plug and recover the productivity of the horizontal well. At present, for a water-cut oil well, a water-producing interval is found out by a water finding technology, and then the water-producing interval is plugged by a mechanical (packer plugging) or chemical water plugging mode to control water.
Disclosure of Invention
In view of the above, the present invention provides a water-finding and water-plugging integrated tubular column for an oil field horizontal well and a method for finding and plugging the same, which are used for overcoming the above problems or at least partially solving or alleviating the above problems.
The invention provides a water exploration and water plugging integrated tubular column for an oil field horizontal well, which comprises:
the lower end of the pipe column is connected with a plug;
the first water finding packer is connected to the pipe column above the screwed plug;
the one-way liquid inlet is arranged on the pipe column above the first water finding packer;
the second water finding packer is connected to the pipe column above the one-way liquid inlet;
the water shutoff packer is connected to the pipe column above the second water finding packer;
the lower end of the oil pipe is connected with the water plugging packer in an inserting mode through a cannula, and a deep water swab is placed in the oil pipe at the lower portion.
The invention also has the following optional features.
Optionally, the deep water pumping unit further comprises a rod type oil well pump, and after the deep water pump is taken out from the oil pipe, the rod-releasing type oil well pump is put into the oil pipe.
Optionally, the lower part of the rod-type oil well pump is provided with an oil well pump supporting seat.
Optionally, the first water finding packer is a Y211 type packer.
Optionally, the second water finding packer is a Y111 type packer.
Optionally, the water shutoff packer is a stinger hydraulic packer.
Optionally, a slide valve is arranged in the water shutoff packer, when the oil pipe pushes the slide valve downwards through the insertion pipe after the water shutoff packer is set, the slide valve is opened, and when the insertion pipe is lifted up from the oil pipe, the slide valve is closed.
The invention also provides a water exploration and water shutoff method for the horizontal well of the oil field, which is implemented by adopting any one of the water exploration and water shutoff integrated tubular columns of the horizontal well of the oil field, and comprises the following steps: s001: carrying out backwashing sand washing on the shaft of the oil well, and washing the sand well to the bottom of the artificial well; s002: the pipe column is sequentially connected with a plug, a first water finding packer, a one-way liquid inlet, a second water finding packer, a water blocking packer and an oil pipe from bottom to top; s003: the pipe column is lowered into a shaft of the horizontal well to a preset position through an oil pipe, and a deep water pump is lowered into the oil pipe; s004: respectively carrying out sectional setting on each perforating section through a first water finding packer and a second water finding packer, simultaneously respectively carrying out swabbing production on each perforating section through a deep water swab, carrying out assay analysis on liquid swabbed by each perforating section on the ground, and determining a water outlet position according to water content and liquid production conditions of different perforating sections; s005: the deep water swab is taken out of the oil pipe, and the packer interval and the position are determined according to the water outlet interval; s006: lifting or lowering the pipe column to ensure that the water shutoff packer is positioned at a packing water shutoff position, and pressurizing the pipe column by using a pump truck to seal the water shutoff packer; s007: the main body of the rod-type oil well pump is connected and put into the oil pipe by the sucker rod, and is sealed and fixed with the oil well pump supporting seat, the production of the oil pumping unit is installed, and the oil pumping unit is started to drive the rod-type oil well pump to pump.
In step S006, if the water content of the produced fluid in the perforation section of the upper layer is too high, the perforation section of the upper layer needs to be sealed, and the water shutoff packer is pressed through the oil pipe and then set, so that the oil pipe is communicated with the pipe column and the one-way liquid inlet through the central pipe of the water shutoff packer.
In step S006, if the water content of the produced fluid in the perforation section of the lower layer is too high, the perforation section of the lower layer needs to be sealed off, the packer is set after being pressed by the tubing, the tubing is lifted up to pull out the plug-in tube, the slide valve of the plug-in packer is closed to prevent the produced fluid in the lower layer from entering the production pumping string.
The integrated pipe column for water exploration and water shutoff of the oil field horizontal well and the water exploration and water shutoff method thereof firstly carry out water exploration on each perforation section through the first water exploration packer and the second water exploration packer, directly and mechanically block the perforation section with high water content of produced liquid by adopting the water shutoff packer according to the water exploration result, and directly put into a production pumping pipe column for production, thereby realizing the integration of water exploration and water shutoff processes, small field construction workload and short construction period.
Compared with the conventional method, the test pipe column does not need to be taken out after finding out water, and the method has the advantages of short construction period of field measures and high efficiency.
Drawings
FIG. 1 is a schematic structural diagram of the water exploration and water shutoff integrated tubular column for the horizontal well of the oil field in a water exploration state;
FIG. 2 is a schematic structural diagram of the horizontal water exploration and water shutoff integrated pipe column for an oil field in the process of sealing an upper perforation section;
FIG. 3 is a schematic structural diagram of the horizontal water exploration and water shutoff integrated pipe column for the oil field in the process of sealing off a lower perforation section.
In the above figures: 1, a pipe column; 2, plugging by a thread; 3, a first water finding packer; 4, a one-way liquid inlet; 5 a second water detection packer; 6, a water plugging packer; 7 oil pipe; 8 rod-type oil-well pumps; 9 oil pump supporting seat; 10, a well bore; 11 perforation section; 12, an oil pumping unit; 13 deep water swab.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Detailed Description
Example 1
Referring to fig. 1, 2 and 3, an embodiment of the present invention provides an oil field horizontal well water exploration and plugging integrated tubular column, which is used for finding a perforated section 11 of water flowing out from a wellbore 10 of a horizontal well and plugging the perforated section 11 of water flowing out, and includes: the device comprises a pipe column 1, a one-way liquid inlet 4, a second water detection packer 5, a water plugging packer 6 and an oil pipe 7; the lower end of the pipe column 1 is connected with a plug 2; the first water finding packer 3 is connected to the pipe column 1 above the plug 2; the one-way liquid inlet 4 is arranged on the pipe column 1 above the first water finding packer 3; the second water detection packer 5 is connected to the pipe column 1 above the one-way liquid inlet 4; the water plugging packer 6 is connected to the pipe column 1 above the second water finding packer 5; the lower end of the oil pipe 7 is connected with the water plugging packer 6 in an inserting mode through an inserting pipe, and a deepwater swab 13 is placed in the oil pipe 7.
The bottom end of the pipe column 1 is blocked by the plug 2, so that the pipe column 1 can only suck the produced fluid of the perforation section 11 from the one-way liquid inlet 4 under the action of the deep water sucker, a space with one isolated end is formed near the one-way liquid inlet 4 after the first water-finding packer 3 below the one-way liquid inlet 4 and the second water-finding packer 5 above the one-way liquid inlet 4 are simultaneously seated, the deep water sucker 13 can only suck the produced fluid of the perforation section 11 on the shaft 10 sealed in the space, the first water-finding packer 3 and the second water-finding packer 5 above the first water-finding packer 3 individually seal and suck the produced fluid of each perforation section 11 on the shaft 10 of each horizontal well, meanwhile, the produced fluid of different perforation sections 11 is tested for water content, the perforation section 11 with more produced fluid can be determined, the perforation section 11 with more produced fluid is sealed by the water plugging packer 6, so that the bottom layer energy of the liquid inlet is saved, and the produced fluid of the perforation section 11 with less produced fluid can be sucked by the oil pipe 7 or the one-way water content 4, the normal production of the horizontal well can be recovered only by one trip of the pipe column, the construction workload is small, the construction period is short, the oil extraction time rate of the oil well can be improved, and the productivity can be increased.
Example 2
Referring to fig. 1 and 2, in addition to embodiment 1, a rod pump 8 is further included, and after the deep water sucker 13 is lifted from the oil pipe 7, the rod pump 8 is lowered into the oil pipe 7.
The method comprises the steps of using a deep water swab 13 to enter an oil pipe 7 for pumping liquid for inspection, after the water content of produced liquid of different perforation sections 11 is inspected, analyzing the position of the perforation section 11 with high water content of the produced liquid, taking out the deep water swab 13, plugging and isolating the perforation section 11 with high water content of the produced liquid, then putting a rod type oil well pump 8 into the oil pipe 7, and connecting the oil well pump 12 for formal production pumping.
Example 3
Referring to fig. 1 and 2, in addition to embodiment 2, a pump support seat 9 is provided at a lower portion of the rod pump 8.
The rod-type oil pump 8 is connected with the pumping unit 12 at the wellhead through a sucker rod, so that the lower part of the rod-type oil pump 8 needs to seat the oil pump supporting seat 9 in the shaft 10 of the oil well to support and fix the rod-type oil pump 8.
Example 4
Referring to fig. 1 to 3, on the basis of embodiment 1, the first water finding packer 3 is a Y211 type packer.
After the Y211 type packer is connected to the pipe column 1 and is put into a horizontal well, the pipe column 1 is lifted for a certain distance, and then is put down to be seated in the shaft 10 and block the oil sleeve annulus.
Example 5
Referring to fig. 1 to 3, on the basis of embodiment 4, the second water finding packer 5 is a Y111 type packer.
Be connected with tubular column 1 and one-way inlet 4 between the lower extreme of Y111 type packer and the upper end of Y211 type packer, after Y211 type packer set up, the lower extreme of Y111 type packer obtained the support, and oil pipe 7 and tubular column 1 continue to transfer again, and Y111 type packer can directly set up to the shutoff has the cover annular space.
Example 6
Referring to fig. 1 to 3, on the basis of the embodiment 1, the water shutoff packer 6 is a hydraulic intubating packer.
The water plugging packer 6 is a common intubating type water plugging packer, can be set by introducing liquid with the pressure of 30-50kN through the oil pipe 7, and can be directly decompressed from the oil pipe 7 if deblocking is required.
Example 7
Referring to fig. 1 and 2, on the basis of embodiment 1, a slide valve is arranged in the water shutoff packer 6, when the water shutoff packer 6 is set, the oil pipe 7 pushes the slide valve downwards through the insertion pipe, the slide valve is opened, and when the oil pipe 7 lifts the insertion pipe, the slide valve is closed.
The end part of the oil pipe 7 is connected with an insertion pipe, after the water shutoff packer 6 is set, the insertion pipe is inserted into the water shutoff packer 6, the insertion pipe pushes a slide valve inside the water shutoff packer 6 downwards to open the slide valve, and then the water shutoff packer 6 is conducted; if the oil pipe 7 is lifted up when the water shutoff packer 6 is set, the insertion pipe connected with the oil pipe 7 is drawn out from the water shutoff packer 6, and the slide valve inside the water shutoff packer 6 is closed, the set water shutoff packer 6 isolates the space in the shaft 10 at the upper side and the lower side of the setting position.
Example 8
The embodiment of the invention also provides a water exploration and water shutoff method for the horizontal well of the oil field, which is implemented by adopting any one of the water exploration and water shutoff integrated tubular columns for the horizontal well of the oil field, wherein the target fractured horizontal well is provided with three fractured perforating sections 11, the well deviation depth is 3000m, the horizontal section length is 800m, and the inner diameter of a sleeve is 124.26m, and the method comprises the following steps:
s001: dredging the well to the bottom of the artificial well by a drifting gauge with the diameter of phi 118mm multiplied by 1.5m, backwashing and washing sand on the well shaft 10 of the oil well, and washing the sand and the well to the bottom of the artificial well; s002: a pipe column 1 is sequentially connected with a plug 2, a first water finding packer 3, a one-way liquid inlet 4, a second water finding packer 5, a water blocking packer 6 and an oil pipe 7 from bottom to top; wherein the pipe column 1 adopts a collar angle oil pipe; s003: the method comprises the following steps of (1) referring to the positions of perforation sections 11 of the horizontal well, lowering a pipe column 1 into a shaft 10 of the horizontal well to a preset position through an oil pipe 7, and lowering a deep water sucker 13 into the oil pipe 7;
s004: a perforation section 11 is positioned between a first water finding packer 3 and a second water finding packer 5, then the perforation section 11 is subjected to subsection setting through the first water finding packer 3 and the second water finding packer 5, the perforation section 11 is subjected to pumping production through a deep water pump 13, liquid pumped by the perforation section 11 is tested and analyzed on the ground, and then subsection setting, pumping production and testing analysis on the pumped liquid are respectively carried out on other perforation sections 11; finally, determining the water outlet position according to the water containing and liquid producing conditions of different perforation sections 11; s005: the deepwater swab 13 is taken out of the oil pipe 7, and the packer interval and the position are determined according to the water outlet interval; s006: lifting or lowering the pipe column 1 to ensure that the water shutoff packer 6 is positioned at a packing water shutoff position, pressurizing the pipe column 1 by using a pump truck to seat the water shutoff packer 6, isolating the perforation section 11 with excessive water content of produced fluid, and directly or indirectly communicating the oil pipe 7 with the perforation section 11 with low water content of the produced fluid in the shaft 10; s007: the main body of the rod-type oil pump 8 is connected with a sucker rod and then is put into an oil pipe 7, the sucker rod is fixed with an oil pump supporting seat 9 in a setting mode, an oil pumping unit 12 is installed for production, and the oil pumping unit 12 is started to drive the rod-type oil pump 8 to pump.
Example 9
Referring to fig. 1 and 2, in step S006, if the water content of the upper perforation stage 11 is too high, it is necessary to seal the upper perforation stage 11, based on the embodiment 8. Moving an oil pipe 7 pipe column to enable a water plugging packer 6 to be moved to the position below a perforation section 11 with too high water content of upper layer production fluid of a shaft 10 of a horizontal well, then pressurizing the interior of the oil pipe 7 by 30-50kN through a pump truck, setting the water plugging packer 6, keeping an insertion pipe of the oil pipe 7 in a main body of the water plugging packer 6, pushing a slide valve to move downwards, opening a central pipe liquid inlet channel of the water plugging packer 6, communicating the oil pipe 7 with all perforation sections 11 on the shaft 10 below the water plugging packer 6 through the pipe column 1 and a one-way liquid inlet 4, isolating production fluid of all perforation sections 11 with high water content of the production fluid on the shaft 10 above the water plugging packer 6 by the water plugging packer 6, and preventing the production fluid with high water content from entering the one-way liquid inlet 4.
Example 10
Referring to fig. 1, in step S006, if the water content of the liquid produced in the lower perforation stage 11 is too high, it is necessary to seal the lower perforation stage 11, based on the embodiment 8. Moving an oil pipe 7 pipe column to enable a water plugging packer 6 to be moved to the position above a perforation section 11 with too high water content of lower-layer produced fluid of a shaft 10 of a horizontal well, pressurizing the oil pipe 7 by 30-50kN through a pump truck, setting the water plugging packer 6, continuously lifting the oil pipe 7 to enable an insertion pipe of the oil pipe 7 to be pulled out of the water plugging packer 6, closing a slide valve of the water plugging packer 6, isolating annular spaces between the pipe column 1 below the water plugging packer 6 and the shaft 10, isolating all produced fluid of the perforation section 11 from the bottom of the well to the shaft 10 below the water plugging packer 6 at the bottom of the well by the water plugging packer 6, and preventing the produced fluid with high water content from entering a production pumping pipe column.
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 changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims. The components and structures of the present embodiments that are not described in detail are well known in the art and do not constitute essential structural elements or elements.
Claims (10)
1. The utility model provides an oil field horizontal well water exploration water shutoff integral type tubular column for find the perforation section (11) of going out water in pit shaft (10) of horizontal well, and the shutoff goes out water perforation section (11), its characterized in that includes:
the device comprises a pipe column (1), wherein the lower end of the pipe column (1) is connected with a plug (2);
the first water finding packer (3), the first water finding packer (3) is connected to the pipe column (1) above the plug (2);
the unidirectional liquid inlet (4) is arranged on the pipe column (1) above the first water detection packer (3);
the second water detection packer (5), the second water detection packer (5) is connected to the pipe column (1) above the one-way liquid inlet (4);
the water shutoff packer (6), the water shutoff packer (6) is connected to the pipe column (1) above the second water exploration packer (5);
the lower end of the oil pipe (7) is connected with the water plugging packer (6) in an inserting mode through a cannula, and a deep water pump (13) is placed in the oil pipe (7) in a downward mode.
2. The integrated pipe column for water exploration and water shutoff of the oilfield horizontal well according to claim 1, further comprising a rod-type oil well pump (8), wherein the rod-type oil well pump (8) is lowered into the oil pipe (7) after the deep water swab (13) is lifted out of the oil pipe (7).
3. The integrated pipe column for water exploration and water shutoff of the oilfield horizontal well according to claim 2, wherein an oil well pump supporting seat (9) is arranged at the lower part of the rod-type oil well pump (8).
4. The integrated pipe column for water exploration and water shutoff of the oil field horizontal well as recited in claim 1, wherein the first water exploration packer (3) is a Y211 type packer.
5. The integrated pipe string for water exploration and water shutoff of the oil field horizontal well as recited in claim 4, characterized in that the second water exploration packer (5) is a Y111 type packer.
6. The integrated pipe string for water exploration and water shutoff of the oil field horizontal well as recited in claim 1, wherein the water shutoff packer (6) is a stinger type hydraulic packer.
7. The integrated pipe string for water exploration and water shutoff of the horizontal well of the oil field as claimed in claim 6, wherein a slide valve is arranged in the water shutoff packer (6), when the oil pipe (7) pushes the slide valve downwards through the insertion pipe after the water shutoff packer (6) is set, the slide valve is opened, and when the insertion pipe is lifted up on the oil pipe (7), the slide valve is closed.
8. The method for detecting and blocking water of the horizontal oil field well is implemented by adopting the integrated pipe column for detecting and blocking water of the horizontal oil field well as defined in any one of claims 1 to 7, and is characterized by comprising the following steps of:
s001: carrying out backwashing sand washing on the oil well shaft (10), and washing sand and a well to the bottom of the artificial well;
s002: a pipe plug (2), a first water detection packer (3), a one-way liquid inlet (4), a second water detection packer (5), a water shutoff packer (6) and an oil pipe (7) are sequentially connected to the pipe column (1) from bottom to top;
s003: the pipe column (1) is lowered into a shaft (10) of the horizontal well to a preset position through an oil pipe (7), and a deep water pump (13) is lowered into the oil pipe (7);
s004: each perforation section (11) is respectively subjected to subsection setting through a first water finding packer (3) and a second water finding packer (5), meanwhile, each perforation section (11) is respectively subjected to swabbing production through a deepwater swab (13), liquid swabbed by each perforation section (11) is subjected to assay analysis on the ground, and a water outlet position is determined according to the water content and liquid production conditions of different perforation sections (11);
s005: the deepwater swab (13) is taken out of the oil pipe (7), and the packer interval and the position are determined according to the water-out interval;
s006: lifting or lowering the pipe column (1) to ensure that the water shutoff packer (6) is positioned at a packing water shutoff position, and pressurizing the pipe column (1) by using a pump truck to seal the water shutoff packer (6);
s007: the main body of the rod-type oil well pump (8) is connected with a sucker rod and then is put into an oil pipe (7), the sucker rod is fixed with an oil well pump supporting seat (9) in a setting mode, an oil pumping unit (12) is installed for production, and the oil pumping unit (12) is started to drive the rod-type oil well pump (8) to pump.
9. The method for water exploration and water shutoff of the oil field horizontal well according to claim 8, wherein in step S006, if the water content of the produced fluid of the perforation section (11) at the upper layer is too high, the perforation section (11) at the upper layer needs to be sealed off, and the water shutoff packer (6) is pressed through the oil pipe (7) and then set, so that the oil pipe (7) is communicated with the pipe column (1) and the one-way liquid inlet (4) through the central pipe of the water shutoff packer (6).
10. The integrated pipe column for water exploration and water shutoff of the horizontal well in the oil field as claimed in claim 8, wherein in step S006, if the water content of the produced fluid in the perforation section (11) of the lower layer is too high, the perforation section (11) of the lower layer needs to be sealed off, the water shutoff packer (6) is set after being pressed by the oil pipe (7), the oil pipe (7) is lifted up to enable the insertion pipe to be pulled out of the water shutoff packer (6), and the slide valve of the water shutoff packer (6) is closed to prevent the produced fluid of the lower layer from entering the production pumping pipe column.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110031389.6A CN112943152A (en) | 2021-01-11 | 2021-01-11 | Water finding and water plugging integrated tubular column for oil field horizontal well and water finding and water plugging method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110031389.6A CN112943152A (en) | 2021-01-11 | 2021-01-11 | Water finding and water plugging integrated tubular column for oil field horizontal well and water finding and water plugging method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113464123A (en) * | 2021-08-19 | 2021-10-01 | 陕西恒合石油科技有限公司 | Rapid water finding method and tubular column for coiled tubing of high-pressure water outlet horizontal well |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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