CN104563957A - Horizontal well cementing sleeve and method for measuring well cementing quality - Google Patents
Horizontal well cementing sleeve and method for measuring well cementing quality Download PDFInfo
- Publication number
- CN104563957A CN104563957A CN201410817709.0A CN201410817709A CN104563957A CN 104563957 A CN104563957 A CN 104563957A CN 201410817709 A CN201410817709 A CN 201410817709A CN 104563957 A CN104563957 A CN 104563957A
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- China
- Prior art keywords
- sleeve
- sleeve pipe
- cementing
- horizontal
- overcoat
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices, or the like
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B34/08—Valve arrangements for boreholes or wells in wells responsive to flow or pressure of the fluid obtained
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/005—Monitoring or checking of cementation quality or level
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B2200/00—Special features related to earth drilling for obtaining oil, gas or water
- E21B2200/06—Sleeve valves
Abstract
The invention discloses a horizontal well cementing sleeve and a method for measuring the well cementing quality. The horizontal well cementing sleeve comprises a sleeve, wherein a floating hoop is arranged at the tiptoe position of a horizontal well of the sleeve, a hydraulic opening sliding sleeve is fixedly connected between the sleeve and the floating hoop, the hydraulic opening sliding sleeve comprises an outer sleeve, an inner sleeve and a switch sleeve, the outer sleeve is of a hollow cylinder body structure, a circulating hole is formed in the cylinder body, one end of the cylinder body is fixedly connected with the sleeve, the other end of the cylinder body is fixedly provided with the inner sleeve, the inner sleeve is of a hollow cylinder body structure, one end of the inner sleeve is arranged inside the outer sleeve in a penetrating mode and forms a limit groove together with the outer sleeve, the other end of the inner sleeve is used for being fixedly connected with the floating hoop, the switch sleeve is arranged inside the limit groove and seals the circulating hole, the switch sleeve can move toward the tiptoe position of the horizontal well under the hydraulic effect, and the circulating hole can be opened. The horizontal well cementing sleeve and the method measuring the well cementing quality are short in measuring time and low in cost.
Description
Technical field
The present invention relates to a kind of shale gas horizontal wells supporting technology, particularly a kind of method of horizontal cementing sleeve pipe and survey cementing quality.
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 a kind of technology measuring the horizontal well surveying cementing quality of shale gas that the used time is short, measurement cost is low at present on the whole.
Summary of the invention
The object of this invention is to provide a kind of method of effective horizontal cementing sleeve pipe and survey cementing quality, the measurement used time is short, and cost is low.
Above-mentioned purpose of the present invention 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.
Based on a method for the survey cementing quality of described horizontal cementing sleeve pipe, comprising:
By described horizontal cementing sleeve pipe G.I.H and cementing well;
Suppress to setting pressure in described horizontal cementing sleeve pipe, to open the circulation port of hydraulic pressure perforate sliding sleeve;
Continue to suppress and press off formation circulation passage to by stratum;
The logger and bridging plug that are connected with cable are pumped to shaft bottom, and by described cable energising to set described bridging plug and to give up;
On carry described cable with drive described logger survey cementing quality.
In a preferred embodiment, described horizontal cementing sleeve pipe, it comprises sleeve pipe, described sleeve pipe is provided with float collar in the tiptoe position of horizontal well, 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.
In a preferred embodiment, described switch sleeve is also fixed on described outer to put by shear pin.
In a preferred embodiment, described setting pressure is greater than the predetermined shear strength of described shear pin.
The features and advantages of the invention are: a kind of method that the invention provides horizontal cementing sleeve pipe of long horizontal sections shale gas horizontal well and the survey cementing quality based on described horizontal cementing sleeve pipe.For the shale gas horizontal well of 1500 meters of horizontal segments, the method is utilized to 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, the method that therefore the method compares crawl device 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 embodiment of the present invention;
Fig. 2 is a kind of hydraulic pressure perforate shift sleeve structure schematic diagram in the embodiment of the present invention;
Fig. 3 is the flow chart of steps of the method for a kind of horizontal well surveying cementing quality in the embodiment of the present invention;
Fig. 4 is the method construction schematic diagram of a kind of horizontal well surveying cementing quality in the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, technical scheme of the present invention is elaborated, these embodiments should be understood only be not used in for illustration of the present invention and limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present invention has all fallen in the application's claims limited range.
The method of a kind of effective horizontal cementing sleeve pipe of the present invention and survey cementing quality, the measurement used time is short, and cost is low.
Refer to Fig. 1, for the structural representation of horizontal cementing sleeve pipe of the present invention, 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 embodiment of the present invention, 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 embodiment of the present invention and the method construction schematic diagram of horizontal well surveying cementing quality.
The method of the survey cementing quality of horizontal cementing sleeve pipe of the present invention, 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 of the present invention 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 invention provides a kind of method of horizontal cementing sleeve pipe of long horizontal sections shale gas horizontal well and the survey cementing quality based on described horizontal cementing sleeve pipe.For the shale gas horizontal well of 1500 meters of horizontal segments, the method is utilized to 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, the method that therefore the method compares crawl device will significantly shorten Measuring Time, save production cost low and technique is simply easy to construction.
The foregoing is only several embodiments of the present invention, although the embodiment disclosed by the present invention as above, the embodiment that described content just adopts for the ease of understanding the present invention, is not intended to limit the present invention.Any those skilled in the art; under the prerequisite not departing from the spirit and scope disclosed by the present invention; any amendment and change can be done on the formal of embodiment and details; but scope of patent protection of the present invention, the scope that still must define with appended claims is as the criterion.
Claims (10)
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.
7., based on a method for the survey cementing quality of horizontal cementing sleeve pipe according to claim 1, it is characterized in that, comprising:
By described horizontal cementing sleeve pipe G.I.H and cementing well;
Suppress to setting pressure in described horizontal cementing sleeve pipe, to open the circulation port of hydraulic pressure perforate sliding sleeve;
Continue to suppress and press off formation circulation passage to by stratum;
The logger and bridging plug that are connected with cable are pumped to shaft bottom, and by described cable energising to set described bridging plug and to give up;
On carry described cable with drive described logger survey cementing quality.
8. the method surveying cementing quality as claimed in claim 7, it is characterized in that: described 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
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.
9. the as claimed in claim 8 method surveying cementing quality, is characterized in that: described switch sleeve is also fixed on described to put outward by shear pin.
10. the method surveying cementing quality as claimed in claim 9, is characterized in that: described setting pressure is greater than the predetermined shear strength of described shear pin.
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CN201410817709.0A CN104563957B (en) | 2014-12-24 | 2014-12-24 | Horizontal cementing sleeve pipe and the method for surveying cementing quality |
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CN201410817709.0A CN104563957B (en) | 2014-12-24 | 2014-12-24 | Horizontal cementing sleeve pipe and the method for surveying cementing quality |
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CN104563957B CN104563957B (en) | 2017-07-07 |
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Cited By (2)
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CN108678706A (en) * | 2018-07-26 | 2018-10-19 | 中国石油天然气股份有限公司 | Wellhead hookup and its operational method |
CN114109300A (en) * | 2020-08-31 | 2022-03-01 | 中国石油天然气股份有限公司 | Well cementation method of horizontal well |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN108678706A (en) * | 2018-07-26 | 2018-10-19 | 中国石油天然气股份有限公司 | Wellhead hookup and its operational method |
CN108678706B (en) * | 2018-07-26 | 2020-08-11 | 中国石油天然气股份有限公司 | Wellhead suspension device and operation method thereof |
CN114109300A (en) * | 2020-08-31 | 2022-03-01 | 中国石油天然气股份有限公司 | Well cementation method of horizontal well |
CN114109300B (en) * | 2020-08-31 | 2023-12-22 | 中国石油天然气股份有限公司 | Cementing method of horizontal well |
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