CN204457588U - Horizontal cementing sleeve pipe - Google Patents
Horizontal cementing sleeve pipe Download PDFInfo
- Publication number
- CN204457588U CN204457588U CN201420832946.XU CN201420832946U CN204457588U CN 204457588 U CN204457588 U CN 204457588U CN 201420832946 U CN201420832946 U CN 201420832946U CN 204457588 U CN204457588 U CN 204457588U
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- China
- Prior art keywords
- sleeve
- sleeve pipe
- horizontal
- cementing
- overcoat
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- Expired - Fee Related
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- 230000009471 action Effects 0.000 claims abstract description 5
- 210000000664 rectum Anatomy 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 24
- 238000000034 method Methods 0.000 description 15
- 238000010276 construction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a kind of horizontal cementing sleeve pipe, described horizontal cementing sleeve pipe comprises sleeve pipe, described sleeve pipe is provided with float collar in the tiptoe position of horizontal well, hydraulic pressure perforate sliding sleeve is fixedly connected with between described sleeve pipe and described float collar, described hydraulic pressure perforate sliding sleeve comprises: overcoat, inner sleeve, switch sleeve, and described overcoat is hollow cylinder structure, and described cylindrical shell is provided with circulation port, its one end is fixedly connected with described sleeve pipe, and the other end is fixed with described inner sleeve; Described inner sleeve is hollow cylinder structure, and its one end is located in described overcoat, and is formed with stopper slot with described overcoat, and the other end is used for being fixedly connected with described float collar; Described switch sleeve to be arranged in described stopper slot and to be sealed by described circulation port; Under hydraulic action, described switch sleeve can move to horizontal well tiptoe position, thus opens described circulation port.Horizontal cementing sleeve pipe described in the utility model, during measurement cementing quality, the used time is short, and cost is low.
Description
Technical field
The utility model relates to a kind of shale gas horizontal wells supporting technology, particularly a kind of horizontal cementing sleeve pipe.
Background technology
Shale gas is the natural gas contained in rammell.Due to shale, to have compactness good, and the feature that permeability is low, the straight well therefore according to routine is exploited, and the output of shale gas can be very low.In order to improve the output of shale gas, the exploitation of usual shale gas-bearing formation adopts horizontal wells more.Such as shale gas reservoir is developed as collecting well group is at present main, general 3 ~ 6 mouthfuls of water horizontal wells of every well group, general 1500 meters to 2000 meters of horizontal segment length.Because horizontal section length is longer, be difficult to reach desirable fracturing effect if carry out general pressure break to shale gas horizontal well, therefore shale gas exploitation needs to carry out staged fracturing to produce or to link up more Reservoir Fractures usually, increases the output of shale gas.When carrying out staged fracturing to shale gas horizontal well, first need shale gas horizontal well to carry out segmentation packing.And the quality of shale gas horizontal cementing quality directly decides packing, the tightness of shale gas horizontal well in segments.The cementing quality of shale gas horizontal well plays vital effect for shale gas well production, life-span and protection of resources in addition, therefore after solid completion, all will survey cementing quality.
But because shale gas horizontal well horizontal segment is longer, adopt the method for Regular wireline can only measure straight well section and part lower curved section, cannot horizontal segment be measured.
At present; the method that existing horizontal segment surveys cementing quality has: adopt crawl device to bring logger into horizontal segment; described crawl device; the speed of creeping is slower; usually 100 ms/h to 200 ms/h are only had; the shale gas horizontal segment of 1500 meters to 2000 meters is generally relative to length; survey cementing quality and usually can take 1 to 2 day time; and the price of described crawl device own is higher, therefore also there is no the technology that a kind of Measuring Time is short, measure the low horizontal well surveying cementing quality of shale gas of cost on the whole at present.
Utility model content
The purpose of this utility model is to provide a kind of effective horizontal cementing sleeve pipe, and during measurement cementing quality, the used time is short, and cost is low.
Above-mentioned purpose of the present utility model can adopt following technical proposal to realize:
A kind of horizontal cementing sleeve pipe, it comprises sleeve pipe, described sleeve pipe is provided with float collar in the tiptoe position of horizontal well, hydraulic pressure perforate sliding sleeve is fixedly connected with between described sleeve pipe and described float collar, described hydraulic pressure perforate sliding sleeve comprises: overcoat, inner sleeve, switch sleeve, and described overcoat is hollow cylinder structure, and described cylindrical shell is provided with circulation port, its one end is fixedly connected with described sleeve pipe, and the other end is fixed with described inner sleeve; Described inner sleeve is hollow cylinder structure, and its one end is located in described overcoat, and is formed with stopper slot with described overcoat, and the other end is used for being fixedly connected with described float collar; Described switch sleeve to be arranged in described stopper slot and to be sealed by described circulation port; Under hydraulic action, described switch sleeve can move to horizontal well tiptoe position, thus opens described circulation port.
In a preferred embodiment, described switch sleeve is also fixed on described outer to put by shear pin.
In a preferred embodiment, the two ends of described circulation port are provided with the sealing ring coordinated with described switch sleeve.
It is in a preferred embodiment, described that putting the position be communicated with described stopper slot is provided with relief hole outward.
In a preferred embodiment, the interior latus rectum of described hydraulic pressure perforate sliding sleeve is not less than the internal diameter of described sleeve pipe.
In a preferred embodiment, described switch sleeve is provided with stopping mechanism, described stopping mechanism is included in the slope groove that described switch sleeve is formed on the surface, and is arranged on the steel ball in the groove of described slope.
Feature of the present utility model and advantage are: the utility model provides a kind of horizontal cementing sleeve pipe of long horizontal sections shale gas horizontal well.For the shale gas horizontal well of 1500 meters of horizontal segments, this horizontal cementing sleeve pipe is utilized to carry out survey cementing quality, being utilized by logger the method for pumping bridging plug to bring shaft bottom into needs 1 little of 2 hours, then carry logger on to have surveyed horizontal segment cementing quality and altogether only need 4 little of 5 hours, therefore apply this horizontal cementing sleeve pipe and carry out surveying the method that cementing quality compares crawl device and will significantly shorten Measuring Time, save production cost low and technique is simply easy to construction.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of horizontal cementing sleeve pipe in the utility model embodiment;
Fig. 2 is a kind of hydraulic pressure perforate shift sleeve structure schematic diagram in the utility model embodiment;
Fig. 3 is the flow chart of steps of the method for a kind of horizontal well surveying cementing quality in the utility model embodiment;
Fig. 4 is the method construction schematic diagram of a kind of horizontal well surveying cementing quality in the utility model embodiment.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the technical solution of the utility model is elaborated, these embodiments should be understood and be only not used in restriction scope of the present utility model for illustration of the utility model, after having read the utility model, the amendment of those skilled in the art to the various equivalent form of value of the present utility model has all fallen in the application's claims limited range.
A kind of effective horizontal cementing sleeve pipe of the utility model, during measurement cementing quality, the used time is short, and cost is low.
Refer to Fig. 1, for the structural representation of horizontal cementing sleeve pipe described in the utility model, described horizontal cementing sleeve pipe comprises sleeve pipe 11, and described sleeve pipe 11 is provided with float collar 12 in tiptoe 110 position of horizontal well, is fixedly connected with hydraulic pressure perforate sliding sleeve 2 between described sleeve pipe 11 and described float collar 12.
Refer to Fig. 2, for hydraulic pressure perforate shift sleeve structure schematic diagram a kind of in the utility model embodiment, described hydraulic pressure perforate sliding sleeve 2 mainly comprises: overcoat 21, inner sleeve 22, switch sleeve 23, described overcoat 21 is in hollow cylinder structure, described cylindrical shell is provided with circulation port 210, its one end is fixedly connected with described sleeve pipe 11, and the other end is fixed with described inner sleeve 22; Described inner sleeve 22 is in hollow cylinder structure, and its one end is located in described overcoat 21, and is formed with stopper slot 24 with described overcoat 21, and the other end is used for being fixedly connected with described float collar 12; Described switch sleeve 23 to be arranged in described stopper slot 24 and to be sealed by described circulation port 210; Under hydraulic action, described switch sleeve 23 can move to horizontal well tiptoe direction, thus opens described circulation port 210.
Described switch sleeve 23 is fixed on described overcoat 21 by shear pin 27.When suppressing in described sleeve pipe 11, when hydraulic pressure reaches the predetermined shear strength of described shear pin 27, shear pin 27 is cut off, and described switch sleeve 23, in described stopper slot 24, moves to horizontal well tiptoe direction, thus opens described circulation port 210.
The two ends of described circulation port 210 are provided with the sealing ring 28 coordinated with described switch sleeve 23.Described sealing ring 28 is for ensureing that described circulation port 210 can seal by described switch sleeve 23 preferably.When carrying out cementing well outside described sleeve pipe 11, can effectively prevent described cement from entering sleeve pipe 11 inner.
The position that described overcoat 21 is communicated with described stopper slot 24 is provided with relief hole 25.Described relief hole 25, for after described circulation port 210 is opened, balances the pressure that described inner sleeve 22 is positioned at stopper slot 24 place, protects described inner sleeve 22, prevents it under High Pressure, the phenomenons such as dropout occurring.
The interior latus rectum of described hydraulic pressure perforate sliding sleeve 2 is not less than the internal diameter of described sleeve pipe 11.Such as during actual use, can according to sleeve pipe 11 specification of shale gas horizontal well: external diameter φ 139.7 millimeters, wall thickness 10.54 millimeters, grade of steel P110, interior latus rectum is φ 115.4 millimeters, and in correspondingly selecting, latus rectum is the hydraulic pressure perforate sliding sleeve 2 of φ 116 millimeters.When the interior latus rectum of described hydraulic pressure perforate sliding sleeve 2 is not less than the internal diameter of described sleeve pipe 11, be conducive to follow-up in described sleeve pipe 11 under enter construction tool and construct.Preferably, when in described hydraulic pressure perforate sliding sleeve 2, latus rectum is equal with the internal diameter of described sleeve pipe 11, be equivalent to dock without undergauge with described sleeve pipe 11.
Described switch sleeve 23 is provided with stopping mechanism 26, and described stopping mechanism 26 is included in the slope groove that described switch sleeve 23 is formed on the surface, and is arranged on the steel ball in the groove of described slope.Described slope groove diminishes gradually along the bearing of trend size of horizontal well, when carrying out suppressing operation in sleeve pipe 11, described steel ball can be under gravity, be stuck in the position that described slope groove size is less, thus realize preventing described switch sleeve 23 toward the stopping function away from the position movement of horizontal well tiptoe 110.
Refer to Fig. 3 and Fig. 4, be respectively the flow chart of steps of the method for a kind of horizontal well surveying cementing quality in the utility model embodiment and the method construction schematic diagram of horizontal well surveying cementing quality.
The method of the survey cementing quality of horizontal cementing sleeve pipe described in the utility model, comprising:
S1: by described horizontal cementing sleeve pipe G.I.H and cementing well, Hou Ning;
S2: at time condensation bundle to pressure break, suppress to setting pressure in described horizontal cementing sleeve pipe, to open the circulation port 210 of hydraulic pressure perforate sliding sleeve 2;
S3: continue to suppress and press off formation circulation passage to by stratum;
S4: by the mode of pumping, the logger 13 and bridging plug 14 that are connected with cable 15 are pumped into shaft bottom, and described cable 15 is energized set described bridging plug 14 and give up;
S5: above carry described cable 15 and drive described logger 13 to survey cementing quality.
Concrete, the method of horizontal well surveying cementing quality described in the utility model is achieved in that the method is mainly through when setting of casing 11, a hydraulic pressure perforate sliding sleeve 2 is added by casing threads connected mode on sleeve pipe 11 float collar 16 top topmost, described hydraulic pressure perforate sliding sleeve 2 mainly comprises: overcoat 21, inner sleeve 22, switch sleeve 23, described overcoat 21 is in hollow cylinder structure, described cylindrical shell is provided with circulation port 210, its one end is fixedly connected with described sleeve pipe 11, and the other end is fixed with described inner sleeve 22; Described inner sleeve 22 is in hollow cylinder structure, and its one end is located in described overcoat 21, and is formed with stopper slot 24 with described overcoat 21, and the other end is used for being fixedly connected with described float collar 12; Described switch sleeve 23 to be arranged in described stopper slot 24 and to be sealed by described circulation port 210; Under hydraulic action, described switch sleeve 23 can move to horizontal well tiptoe direction, thus opens described circulation port 210.
When described switch sleeve 23 two end faces exist pressure reduction, concrete, described two end faces are respectively the interior pressure of sleeve pipe 11 and the annular pressure at stopper slot 24 place.When the pressure reduction at described switch sleeve 23 two ends is greater than described shear pin 27 predetermined shear strength, described shear pin 27 is cut off, and described switch sleeve 22 can move toward horizontal well tiptoe 110 direction, until expose circulation port 23, and now UNICOM inside and outside sleeve pipe 11.
During actual use, can according to sleeve pipe 11 specification of shale gas horizontal well: external diameter φ 139.7 millimeters, wall thickness 10.54 millimeters, grade of steel P110, interior latus rectum is φ 115.4 millimeters, and in correspondingly selecting, latus rectum is the hydraulic pressure perforate sliding sleeve 2 of φ 116 millimeters.Before setting of casing 11, hydraulic pressure perforate sliding sleeve 2 is received the upper end of the float collar 12 in sleeve pipe 11 the top, setting of casing 11 cementing well, in time period between waiting condensation and restrainting to pressure break, suppressed in sleeve pipe 11 to setting pressure 21 MPa at well head by fracturing unit truck, after hydraulic pressure perforate sliding sleeve 2 is opened, continue to suppress until stratum to be pressed off the circulation passage forming well inner fluid.Cable is utilized to enter the bridging plug 14 that logger 13 and maximum outside diameter are φ 110 millimeters for 15 times, fracturing unit truck at well head toward infusion clear water in sleeve pipe, by the mode of pumping, logger 13 is pumped into shaft bottom, cable 15 energising sets bridging plug 14 and gives up, and upper portable cable 15 drives logger 13 to survey cementing quality.
The utility model provides a kind of horizontal cementing sleeve pipe of long horizontal sections shale gas horizontal well.For the shale gas horizontal well of 1500 meters of horizontal segments, this horizontal cementing sleeve pipe is utilized to carry out survey cementing quality, being utilized by logger 13 method of pumping bridging plug to bring shaft bottom into needs 1 little of 2 hours, then carry logger on to have surveyed horizontal segment cementing quality and altogether only need 4 little of 5 hours, therefore apply horizontal cementing sleeve pipe described in the utility model and carry out surveying the method that cementing quality compares crawl device and will significantly shorten Measuring Time, save production cost low and technique is simply easy to construction.
The foregoing is only several embodiment of the present utility model, although the embodiment disclosed by the utility model as above, the embodiment that described content just adopts for the ease of understanding the utility model, is not intended to limit the utility model.Any the utility model person of ordinary skill in the field; under the prerequisite not departing from the spirit and scope disclosed by the utility model; any amendment and change can be done on the formal of embodiment and details; but scope of patent protection of the present utility model, the scope that still must define with appended claims is as the criterion.
Claims (6)
1. a horizontal cementing sleeve pipe, it comprises sleeve pipe, and described sleeve pipe is provided with float collar in the tiptoe position of horizontal well, it is characterized in that: be fixedly connected with hydraulic pressure perforate sliding sleeve between described sleeve pipe and described float collar, described hydraulic pressure perforate sliding sleeve comprises: overcoat, inner sleeve, switch sleeve
Described overcoat is hollow cylinder structure, and described cylindrical shell is provided with circulation port, and its one end is fixedly connected with described sleeve pipe, and the other end is fixed with described inner sleeve;
Described inner sleeve is hollow cylinder structure, and its one end is located in described overcoat, and is formed with stopper slot with described overcoat, and the other end is used for being fixedly connected with described float collar;
Described switch sleeve to be arranged in described stopper slot and to be sealed by described circulation port; Under hydraulic action, described switch sleeve can move to horizontal well tiptoe position, thus opens described circulation port.
2. horizontal cementing sleeve pipe as claimed in claim 1, is characterized in that: described switch sleeve is also fixed on described to put outward by shear pin.
3. horizontal cementing sleeve pipe as claimed in claim 1, is characterized in that: the two ends of described circulation port are provided with the sealing ring coordinated with described switch sleeve.
4. horizontal cementing sleeve pipe as claimed in claim 1, is characterized in that: put the position be communicated with described stopper slot outside described and be provided with relief hole.
5. horizontal cementing sleeve pipe as claimed in claim 1, is characterized in that: the interior latus rectum of described hydraulic pressure perforate sliding sleeve is not less than the internal diameter of described sleeve pipe.
6. horizontal cementing sleeve pipe as claimed in claim 1, it is characterized in that: described switch sleeve is provided with stopping mechanism, described stopping mechanism is included in the slope groove that described switch sleeve is formed on the surface, and is arranged on the steel ball in the groove of described slope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420832946.XU CN204457588U (en) | 2014-12-24 | 2014-12-24 | Horizontal cementing sleeve pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420832946.XU CN204457588U (en) | 2014-12-24 | 2014-12-24 | Horizontal cementing sleeve pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204457588U true CN204457588U (en) | 2015-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420832946.XU Expired - Fee Related CN204457588U (en) | 2014-12-24 | 2014-12-24 | Horizontal cementing sleeve pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204457588U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104563957A (en) * | 2014-12-24 | 2015-04-29 | 中国石油天然气集团公司 | Horizontal well cementing sleeve and method for measuring well cementing quality |
-
2014
- 2014-12-24 CN CN201420832946.XU patent/CN204457588U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104563957A (en) * | 2014-12-24 | 2015-04-29 | 中国石油天然气集团公司 | Horizontal well cementing sleeve and method for measuring well cementing quality |
| CN104563957B (en) * | 2014-12-24 | 2017-07-07 | 中国石油天然气集团公司 | Horizontal cementing sleeve pipe and the method for surveying cementing quality |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 |