CN202788638U - Multi-stage segmented releasing water exploration pipe column for casing completion multi-stage fractured horizontal well - Google Patents
Multi-stage segmented releasing water exploration pipe column for casing completion multi-stage fractured horizontal well Download PDFInfo
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- CN202788638U CN202788638U CN 201220335408 CN201220335408U CN202788638U CN 202788638 U CN202788638 U CN 202788638U CN 201220335408 CN201220335408 CN 201220335408 CN 201220335408 U CN201220335408 U CN 201220335408U CN 202788638 U CN202788638 U CN 202788638U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract description 41
- 239000003129 oil well Substances 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 abstract description 29
- 238000012360 testing method Methods 0.000 abstract description 20
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- 238000005086 pumping Methods 0.000 abstract description 5
- 230000011218 segmentation Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 238000009835 boiling Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 241000406668 Loxodonta cyclotis Species 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
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Abstract
The utility model discloses a casing completion multistage fracturing horizontal well multistage segmentation release water exploration tubular column, include: the multi-stage water exploration pipe column assembly is arranged in a horizontal section casing of the horizontal well and comprises a plug, a plurality of Y441 type packers and a release joint which are sequentially arranged from bottom to top, wherein the Y441 type packers are arranged at intervals, and a sealing area between every two adjacent Y441 type packers forms a connecting section; each connecting section is connected with a safety joint and a switch in sequence; the production string component comprises an oil well pump, an oil pump plunger and an oil pumping rod, the upper part of the oil well pump is connected with an oil pipe to the wellhead of the horizontal well, the oil well pump plunger is connected with the oil pumping rod, and the upper end of the oil pumping rod is connected with the ground oil pumping unit. The utility model discloses a water detection test of more each layer section of one-time tubular column, water detection efficiency is high, and the test layer section is unrestricted, can satisfy the segmentation water detection function of high pressure horizontal well, has avoided the production tubular column wriggling, has improved the accuracy and the sealed reliability of tubular column of water detection test.
Description
Technical field
The utility model relates to the searching pipe column in a kind of oil extraction in oil field technical field, relates in particular to a kind of cased hole completion multistage pressure break horizontal well multistage subsection searching pipe column of giving up.
Background technology
Domestic each elephant is core around raising reservoir development degree, raising recovery ratio, raising well yield, reduction cost of winning at present, carries forward vigorously the horizontal wells technology.But because the property complicated and changeable of horizontal well self well track, flooding pattern, and each oil reservoir lithology, physical property are different with properties of fluid in bearing stratum, cause each interval of horizontal well in the difference of the aspects such as water absorbing capacity, water-front advance velocity, production fluid situation, cause the indivedual interval water breakthroughs of horizontal well early, and water bearing bed position and direction are indefinite, and the technical problem such as each layer production capacity, pressure condition be unclear.Because at present that is that all right is ripe for horizontal well water detection technology, particularly the water detection technology of the low liquid measure horizontal well of low-permeability oil deposit also is in the exploratory development stage, causes on-the-spot dynamically adjustment measure to have a strong impact on the horizontal well development effect without specific aim.
Existing sectionalized water-exploration testing pipe column of casing well-completion horizontal well is in the horizontal segment sleeve pipe of horizontal well, be connected with the guiding plug from bottom to top, the top of guiding plug is connected with three water finding switchs at least by box cupling chamfering oil pipe, be connected with packer by box cupling chamfering oil pipe between adjacent two water finding switchs, be connected with safety joint on the water finding switch top of top by oil pipe.The top of safety joint is connected with the gap bridge oil extraction pump, and the top connected pipes of gap bridge oil extraction pump is until well head.But because existing water detection test string adopts the cup packer sealed clamping cleat to open each interval, because cup packer is self-packing packer, pressure-bearing poor low (less than 10MPa) and be subjected to restriction from sealed packer and pipe friction resistance can only realize 3 grade of 4 segmentation water detection test of one-trip string.For the horizontal well of each interval pressure reduction greater than 10MPa, and interval can't be used this water detection test string greater than 4 sections horizontal well.
For this reason, for improving the poor intensity of water detection test string packer pressure-bearing, and the one-trip string water detection technology that is adapted to present more pay interval horizontal wells (the production hop count of horizontal well is all greater than 6 sections at present), the utility model provides a kind of cased hole completion multistage pressure break horizontal well multistage subsection searching pipe column of giving up.
The utility model content
The purpose of this utility model provides a kind of cased hole completion multistage pressure break horizontal well multistage subsection of can one-trip string finishing production capacity, pressure and the temperature test of each interval of horizontal well searching pipe column of giving up.
For achieving the above object, the utility model proposes a kind of cased hole completion multistage pressure break horizontal well multistage subsection searching pipe column of giving up, comprise: multistage searching pipe column assembly, be located in the horizontal segment sleeve pipe of horizontal well, comprise the plug that sets gradually from the bottom to top, a plurality of Y441 type packers, the back-off sub that the interval arranges, the sealing area between two adjacent Y441 type packers forms a linkage section; In each linkage section, be connected with safety joint and derailing switch in turn, be serially connected successively by oil pipe between each Y441 type packer, safety joint, the derailing switch; The flow string assembly, be located in the vertical section sleeve pipe of horizontal well, comprise oil well pump, oil pump plunger piston, sucker rod, described oil well pump top connected pipes is to horizontal well well head place, described oil pump plunger piston connects described sucker rod, and the upper end of described sucker rod is connected with described ground oil pumper.
The aforesaid cased hole completion multistage pressure break horizontal well multistage subsection searching pipe column of giving up wherein, is provided with at least 4 described Y441 type packers in described multistage searching pipe column assembly, form at least 3 linkage sections.
The aforesaid cased hole completion multistage pressure break horizontal well multistage subsection searching pipe column of giving up, wherein, described multistage searching pipe column assembly and described flow string assembly are separatedly installed.
The aforesaid cased hole completion multistage pressure break horizontal well multistage subsection searching pipe column of giving up wherein, is provided with derailing switch between the Y441 type packer that described back-off sub is adjacent; Between the Y441 type packer that described plug is adjacent, be provided with derailing switch.
The aforesaid cased hole completion multistage pressure break horizontal well multistage subsection searching pipe column of giving up, wherein, described derailing switch is the intelligent switch device.
Compared with prior art, the utlity model has following characteristics and advantage:
1, the utility model adopts Y441 type packer, carries out each interval of multistage-combination sealed clamping cleat boiling water horizontal well, has realized the water detection test of more multi-layered section of one-trip string, the water detection testing efficiency is high, test zone is unrestricted, and prior art adopts the leather cup packing, and the test hop count once can only be surveyed three sections.
2, the poor performance of pressure-bearing of the utility model employing Y441 type packer satisfies the segmentation water detection function of water under high pressure horizontal well up to 25MPa.And the cup packer pressure-bearing the highest poor 10MPa that prior art adopts can't use at high-pressure well.
3, the utility model divides multistage searching pipe column assembly and flow string assembly and is arranged, solved prior art in the water detection test process because the defective that flow string is wriggled and caused the net horizontal section large effect of multistage searching pipe column component sealing and then affect the water detection accuracy has improved the accuracy of water detection test and the reliability of tubing string sealing performance effectively.
Description of drawings
Accompanying drawing described here only is used for task of explanation, and is not intended to limit by any way the utility model scope of disclosure.In addition, the shape of each parts among the figure and proportional sizes etc. only are schematically, be used for helping understanding of the present utility model, and be not shape and the proportional sizes that specifically limits each parts of the utility model.Those skilled in the art can select various possible shapes and proportional sizes to implement the utility model under instruction of the present utility model as the case may be.
Fig. 1 is the give up structural representation of searching pipe column of the utility model cased hole completion multistage pressure break horizontal well multistage subsection.
Description of reference numerals:
The 1-oil pipe; The 2-back-off sub; 3-Y441 type packer; The 4-safety joint; 5-intelligent switch device; The 6-plug; The 7-oil pipe; The 8-oil well pump; The 9-oil pump plunger piston; The 10-sucker rod; 11-ground oil pumper.
The specific embodiment
With the description of the utility model specific embodiment, can more be well understood to details of the present utility model by reference to the accompanying drawings.But the specific embodiment of the present utility model described here only is used for explaining the purpose of this utility model, is to restriction of the present utility model and can not be understood as by any way.Under instruction of the present utility model, the technician can conceive based on arbitrarily possible distortion of the present utility model, and these all should be regarded as belonging to scope of the present utility model.
Please refer to Fig. 1, be the give up structural representation of searching pipe column of the utility model cased hole completion multistage pressure break horizontal well multistage subsection.As shown in the figure, the cased hole completion multistage pressure break horizontal well multistage subsection that the utility model proposes searching pipe column of giving up, comprise multistage searching pipe column assembly and the interior flow string assembly of the vertical section sleeve pipe that is located at horizontal well in the horizontal segment sleeve pipe that is located at horizontal well, wherein, multistage searching pipe column assembly comprises the plug 6 that sets gradually from the bottom to top, a plurality of Y441 type packers 3 that the interval arranges, back-off sub 2, sealing area between two adjacent Y441 type packers forms a linkage section, each linkage section is connected with safety joint 4 and derailing switch 5 in turn corresponding to a water detection interval in the horizontal well in each linkage section; Be serially connected successively by oil pipe between each Y441 type packer, safety joint, the derailing switch.The flow string assembly comprises oil well pump 8, oil pump plunger piston 9, sucker rod 10, oil well pump 8 top connected pipes 7 are to horizontal well well head place, oil pump plunger piston 9 connecting with pumping rods 10, the upper end of sucker rod 10 connects ground oil pumper 11, drives the sucker rods 10 realization production operation that moves up and down by ground oil pumper 11.The utility model linkage section of the corresponding installation of a water detection interval by adopting horizontal well is used the sealing of Y441 type packer chucking between the two adjacent layer sections.Because the Y441 type packer that the utility model adopts is compared with existing cup packer, has the poor high advantage of pressure-bearing, therefore can realize that one-trip string finishes production capacity, pressure and the temperature test of more multi-layered section of horizontal well (greater than 6 intervals), the water detection testing efficiency is high, and is applied widely.
As another improvements of the present utility model, derailing switch 5 is intelligent switch device 5.Intelligent switch device 5 is arranged in each linkage section, can take setting-up time (as: my god) set the acquisition time open or close as unit, at the down-hole time opening with close, realize that each interval independently produces.Certainly, the utility model also can adopt other derailing switch 5, independently produces as long as can guarantee each interval.
In the utility model, multistage searching pipe column assembly and flow string assembly are separatedly installed, solved prior art in the water detection test process because the flow string wriggling causes the large effect of net horizontal section searching pipe column sealing, affect the defective of water detection accuracy, effectively improved the accuracy of water detection test and the reliability of tubing string sealing performance.
In the utility model, in multistage searching pipe column assembly, be provided with at least 4 Y441 type packers 3, those Y441 type packers 3 arrange at the interval in twos corresponding to each water detection interval, thereby form at least 3 linkage sections, with the needs of the production hop count that adapts to present horizontal well.
Further, as shown in Figure 1, between the Y441 type packer 3 that back-off sub 2 is adjacent, be provided with intelligent switch device 5, in order to control.Same, between the Y441 type packer 3 that plug 6 is adjacent, be provided with intelligent switch device 5, correspond respectively to again the water detection interval in two outsides of 3 linkage sections, thereby can be applicable in the horizontal well of five sections pay intervals.
In the utility model, as shown in Figure 1, the lower end that is connected intelligent switch device 5 by the upper end of plug 6 by oil pipe, the upper end of intelligent switch device 5 connects the lower end of Y441 type packer 3 by oil pipe, the upper end of Y441 type packer 3 connects the lower end of safety joint 4 by oil pipe, the upper end of safety joint 4 connects the lower end of a upper intelligent switch device 5 by oil pipe, the upper end of a upper intelligent switch device 5 connects the lower end of a upper Y441 type packer 3 by oil pipe, by that analogy, the upper end of uppermost Y441 type packer 3 connects the lower end of uppermost intelligent switch device 5 by oil pipe, the upper end of uppermost intelligent switch device 5 connects the lower end of back-off sub 2 by oil pipe, form sealed clamping cleat and open the multistage searching pipe column assembly of five sections pay intervals, thereby be formed between plug 6 and the back-off sub 2 take " Y441 type packer 3-intelligent switch device 5-safety joint 4-Y441 type packer 3 " as the multistage searching pipe column assembly of linkage section, realized simultaneously water detection of horizontal well multistage technique.
The utility model in use, adopt the aforesaid cased hole completion multistage pressure break horizontal well multistage subsection searching pipe column of giving up, a plurality of Y441 type packers that groundwater prospecting method arranges by the interval of suppressing multistage searching pipe column assembly, carry out each interval of multistage-combination sealed clamping cleat boiling water horizontal well, realize the water detection test of one-trip string multi-section multi-layer.Be specially:
Multistage searching pipe column assembly by the desired location of oil pipe down to the horizontal segment of horizontal well, is suppressed and set Y441 type packer 3, and multistage searching pipe column assembly is put aside from back-off sub 2;
By the intelligent switch device 5 in each water detection interval, set the acquisition time open or close on ground take setting-up time as unit, time opening and closing under horizontal well;
The ground oil pumper is produced continuously, and the one by one individual layer production under the timing controlled of intelligent switch device 5 of each interval of horizontal well by the single amount in ground, sample examination analysis, calculates respectively each interval production fluid amount, moisture, pressure and temperature data.
Use concrete groundwater prospecting method of the present utility model to be:
At first by design scheme ground intelligent derailing switch 5 on ground take the time (my god) set the acquisition time open or close as unit, then multistage searching pipe column assembly is connected, behind the precalculated position, suppress in from oil pipe to tubing string with cement high pressure car and to set Y441 type packer, continue to suppress multistage searching pipe column assembly is put aside from back-off sub 2, put on section's oil pipe on then; Again the flow string assembly is connected, down to desired location.At this moment, each interval of horizontal well is opened by Y441 type packer 3 sealed clamping cleats, and the corresponding cover intelligent switch device 5 of installing of each interval; Intelligent switch device 5 on ground take the time (my god) set the acquisition time open or close as unit, at the down-hole time opening with close, realize that each interval independently produces; Start ground oil pumper 11 and produce continuously, the one by one individual layer production under the timing controlled of intelligent switch device 5 of each interval of horizontal well by the single amount in ground, sample examination analysis, is obtained respectively the data such as each section production fluid amount, moisture, pressure and temperature.
Detailed explanation for the respective embodiments described above, its purpose only is the utility model is made an explanation, so that can understand better the utility model, but, it is to restriction of the present utility model that these descriptions can not be construed to any reason, particularly, each feature of describing in different embodiments is mutual any combination also, thereby form other embodiments, except clear and definite opposite description is arranged, these features should be understood to can be applied in any one embodiment, and also not only are confined to described embodiment.
Claims (5)
1. cased hole completion multistage pressure break horizontal well multistage subsection searching pipe column of giving up is characterized in that described searching pipe column comprises:
Multistage searching pipe column assembly is located in the horizontal segment sleeve pipe of horizontal well, comprises the plug that sets gradually from the bottom to top, a plurality of Y441 type packers, the back-off sub that the interval arranges, and the sealing area between two adjacent Y441 type packers forms a linkage section; In each linkage section, be connected with safety joint and derailing switch in turn, be serially connected successively by oil pipe between each Y441 type packer, safety joint, the derailing switch;
The flow string assembly, be located in the vertical section sleeve pipe of horizontal well, comprise oil well pump, oil pump plunger piston, sucker rod, described oil well pump top connected pipes is to horizontal well well head place, described oil pump plunger piston connects described sucker rod, and the upper end of described sucker rod is connected with described ground oil pumper.
2. the cased hole completion multistage pressure break horizontal well multistage subsection as claimed in claim 1 searching pipe column of giving up is characterized in that, is provided with at least 4 described Y441 type packers in described multistage searching pipe column assembly, forms at least 3 linkage sections.
3. the cased hole completion multistage pressure break horizontal well multistage subsection as claimed in claim 1 searching pipe column of giving up is characterized in that described multistage searching pipe column assembly and described flow string assembly are separatedly installed.
4. the cased hole completion multistage pressure break horizontal well multistage subsection as claimed in claim 1 searching pipe column of giving up is characterized in that, is provided with derailing switch between the Y441 type packer that described back-off sub is adjacent; Between the Y441 type packer that described plug is adjacent, be provided with derailing switch.
5. such as the searching pipe column of giving up of each described cased hole completion multistage pressure break horizontal well multistage subsection in the claim 1 to 4, it is characterized in that described derailing switch is the intelligent switch device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220335408 CN202788638U (en) | 2012-07-10 | 2012-07-10 | Multi-stage segmented releasing water exploration pipe column for casing completion multi-stage fractured horizontal well |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220335408 CN202788638U (en) | 2012-07-10 | 2012-07-10 | Multi-stage segmented releasing water exploration pipe column for casing completion multi-stage fractured horizontal well |
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| CN202788638U true CN202788638U (en) | 2013-03-13 |
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| CN 201220335408 Expired - Fee Related CN202788638U (en) | 2012-07-10 | 2012-07-10 | Multi-stage segmented releasing water exploration pipe column for casing completion multi-stage fractured horizontal well |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102747967A (en) * | 2012-07-10 | 2012-10-24 | 中国石油天然气股份有限公司 | Multi-stage segmented release water exploration pipe column and method for casing completion multi-stage fractured horizontal well |
| CN104420836A (en) * | 2013-08-30 | 2015-03-18 | 中国石油天然气股份有限公司 | Horizontal well subsection setting type wellhead flow method water exploration pipe column and water exploration method thereof |
| WO2015074243A1 (en) * | 2013-11-22 | 2015-05-28 | 中国石油天然气股份有限公司 | Intelligent test system and method for multi-segment fractured horizontal well |
| CN110206531A (en) * | 2019-05-23 | 2019-09-06 | 广州海洋地质调查局 | A kind of oil pipe of horizontal well production profile test method and device |
-
2012
- 2012-07-10 CN CN 201220335408 patent/CN202788638U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102747967A (en) * | 2012-07-10 | 2012-10-24 | 中国石油天然气股份有限公司 | Multi-stage segmented release water exploration pipe column and method for casing completion multi-stage fractured horizontal well |
| CN104420836A (en) * | 2013-08-30 | 2015-03-18 | 中国石油天然气股份有限公司 | Horizontal well subsection setting type wellhead flow method water exploration pipe column and water exploration method thereof |
| WO2015074243A1 (en) * | 2013-11-22 | 2015-05-28 | 中国石油天然气股份有限公司 | Intelligent test system and method for multi-segment fractured horizontal well |
| US9605531B2 (en) | 2013-11-22 | 2017-03-28 | Petrochina Company Limited | Intelligent test system and method for multi-segment fractured horizontal well |
| CN110206531A (en) * | 2019-05-23 | 2019-09-06 | 广州海洋地质调查局 | A kind of oil pipe of horizontal well production profile test method and device |
| CN110206531B (en) * | 2019-05-23 | 2024-04-09 | 广州海洋地质调查局 | Method and device for testing output profile of horizontal well oil pipe |
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Granted publication date: 20130313 Termination date: 20210710 |
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