CN107237601B - A kind of shale gas batch production wellbore construction method - Google Patents
A kind of shale gas batch production wellbore construction method Download PDFInfo
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- CN107237601B CN107237601B CN201610183142.5A CN201610183142A CN107237601B CN 107237601 B CN107237601 B CN 107237601B CN 201610183142 A CN201610183142 A CN 201610183142A CN 107237601 B CN107237601 B CN 107237601B
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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
- E21B7/00—Special methods or apparatus for drilling
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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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/02—Drilling rigs characterized by means for land transport with their own drive, e.g. skid mounting or wheel mounting
Abstract
The present invention is a kind of shale gas batch production wellbore construction method, comprising the following steps: (1) selectes the model of big drilling machine and drilling-in unit；(2) equipment installation, the debugging of drilling-in unit are completed in the 1st mouthful of well；Drilling operation is opened using the eye and one of leading that drilling-in unit completes the 1st mouthful of well, and the eye and one of leading for being sequentially completed N mouthfuls of wells opens drilling operation；(3) when drilling-in unit is moved to a specific well head, equipment installation, the debugging of big drilling machine are completed in the 1st mouthful of well；Two are completed using big drilling machine and opens drilling operation, and are sequentially completed the two of N mouthfuls of wells and are opened drilling operation；After (4) N mouthfuls of well cementing wells, three are completed to N mouthfuls of wells using big drilling machine and opens drilling operation, be sequentially completed remaining well three open drilling operation；Pressure testing after (5) the 1st mouthfuls of well cementings, is moved to the 2nd mouthful of well for big drilling machine after pressure testing, until N mouthfuls of wells.The present invention shortens drilling equipment and stops waiting the times, improves equipment efficiency of usage, shortens the shale gas wellbore construction period, reduces drilling cost.
Description
Technical field
Present invention is mainly applied to shale gas horizontal well drilling technology fields.
Background technique
There is the wellbore construction period is long, corollary equipment instrument utilization rate is low for the exploration and development of unconventional petroleum resources, at
The problems such as this is excessively high, seriously constrains the exploration and development process of China's unconventional petroleum resources.Especially in recent years, with shale
The quickening of the exploration and development process of gas resource, shortening drilling period, reduction drilling cost, raising drilling equipment utilization rate becomes
Problem urgently to be resolved in shale gas drilling process.For this purpose, the factory operation mode in mechanical industry is introduced in oil gas brill
Well field.It is domestic successively to have carried out the exploration of batch production drilling technology in areas such as Shengli Oil Field, DaNiuDi gas field, Soviet Union's Sulige gas fields
With test, optimization proposes the technique and method of some batch production wellbore constructions, the current each work of batch production wellbore construction method
It is connected defective tightness between sequence, coordinative composition of equipments is not perfect, and drilling equipment service efficiency is not high.
Paper " densification oil level well group batch production drilling well in Changji recognizes and practices " describes Xinjiang Oilfield in Changji block
Carry out the factorial production operation procedure, mass drilling technology pilot test in fine and close oil exploitation, preliminarily forms fine and close oily work
Factory's drillng operation mode has reference to the exploitation of fine and close fuel oil meter modelling.Work pattern uses two big drilling machines of 50 types, will
Construction process is divided into three phases.The batch production drilling technology whole flow process mentioned in the paper uses big drilling machine, big drilling machine
It is long using the time using Fei Gao, higher cost.
Described in paper " the fine and close oily drilling technology status in North America and the enlightenment to China " North America densification oil distribution situation,
Drilling technology development course and at this stage cultivation scale situation have combed the master used by North America mainly fine and close oil tray ground at present
Body and forward position drilling technology, analyze the development trend of the following drilling technology, provide for the fine and close oil exploitation of China at the startup
It uses for reference.The paper has been only referred to the concept of batch production drilling well, does not introduce its detailed construction technique.
Summary of the invention
In view of the above-mentioned problems, can be mentioned significantly the object of the present invention is to provide a kind of shale gas batch production wellbore construction method
The service efficiency of high drilling machine shortens construction period, reduces drillng operation cost.
In order to achieve the above object, the present invention provides a kind of shale gas batch production wellbore construction methods comprising following steps:
(1) well depth is designed with shale gas, selectes the model of big drilling machine and drilling-in unit；
(2) well factory platform disposes N mouthfuls of wells altogether, completes equipment installation, the debugging of drilling-in unit in the 1st mouthful of well, reaches out
It spuds in condition；Drilling operation is opened using the eye and one of leading that drilling-in unit completes the 1st mouthful of well, it is described small after injecting well cementing of cement bruising
Drilling-machine shifter to the 2nd mouthful of well and repeat the 1st mouthful of well above-mentioned operation, be sequentially completed remaining N-2 mouthfuls of well lead eye and one spud in into
Operation；
(3) when drilling-in unit is moved to apart from described 1st mouthful at least 30 meters of well of a specific well head, it is completed in the 1st mouthful of well
Equipment installation, the debugging of big drilling machine reach two and spud in condition；Two, which are completed, using big drilling machine opens drilling operation, tripping in technology set
Pipe, the big drilling machine is moved to the 2nd mouthful of well and repeats the above-mentioned operation of the 1st mouthful of well after cementing well bruising, is sequentially completed it
The two of remaining N-2 mouthfuls of well open drilling operation；
(4) after big drilling machine completes N mouthfuls of well cementing wells, big drilling machine is not moved；Wait it is solidifying after, using big drilling machine to the
N mouthfuls of wells complete three and open drilling operation, and lower production casing, big drilling machine is moved to N-1 mouthfuls of wells and carries out after cementing well bruising
Three open drilling operation, and be sequentially completed remaining well three open drilling operation；
(5) after big drilling machine completes the cementing of the 1st mouthful of well, big drilling machine is not moved；Hou Ning installs well control device, lower probing
It fills in, sweeps plug, scrapes wall, latus rectum, for perforating fluid, survey cementing quality, casing pressure test；Big drilling machine is moved to the 2nd mouthful of well weight after pressure testing
The above-mentioned operation of multiple 1st mouthful of well, until N mouthfuls of wells；Cover board flange is installed after N mouthfuls of well operations.
The shale gas batch production wellbore construction method, wherein in step (3), the specific well head is the 4th mouthful
Well.
The shale gas batch production wellbore construction method, wherein in step (2) into step (5), after cementing bruising
Waiting time is 12 hours.
The shale gas batch production wellbore construction method, wherein in step (2), configured using the off-line operation time
Water-base drilling fluid.
The shale gas batch production wellbore construction method, which is characterized in that in step (3), when using off-line operation
Between configure oil base drilling fluid.
The shale gas batch production wellbore construction method, wherein in step (2), when eye and one are led in N mouthfuls of well completions
After opening drilling operation, drilling-in unit cooperation well cementation sweeps plug recession from well site.
The shale gas batch production wellbore construction method, wherein in step (1), drilling-in unit uses 30 type vehiculars
Mobile drill.
The shale gas batch production wellbore construction method, wherein in step (1), big drilling machine using 50 type drilling machines or
70 type drilling machines, drilling machine fast move drilling machine or stepping churn using rail mounted.
The shale gas batch production wellbore construction method, wherein in step (5), utilize off-line operation time, installation
The cover board flange of upper a well.
In conclusion stopping the equal times the beneficial effects of the present invention are: being substantially shorter drilling equipment, raising equipment utilization effect
Rate shortens the shale gas wellbore construction period to realize, reduces the purpose of drilling cost.A kind of batch production proposed by the present invention is bored
Well construction process can make the complete time in drilling well shorten 80%, and drilling period shortens 30%, and cost reduces by 20% or more.
Detailed description of the invention
The invention will be described in more detail below based on embodiments and refering to the accompanying drawings.Wherein:
Fig. 1 is the present invention in the schematic diagram for carrying out step (2)；
Fig. 2 is the present invention in the schematic diagram for carrying out step (3)；
Fig. 3 is the present invention in the schematic diagram for carrying out step (3)；
Fig. 4 is the present invention in the schematic diagram for carrying out step (4)；
Fig. 5 is the present invention in the schematic diagram for carrying out step (5).
Description of symbols: the 1st mouthful of well of 1-；The 2nd mouthful of well of 2-；The 3rd mouthful of well of 3-；The 4th mouthful of well of 4-；N-1 mouthfuls of wells of N-1-；N-
N mouthfuls of wells；10- conduit；20- surface pipe；30- protective casing；40- production casing；100- drilling-in unit；The big drilling machine of 200-；
In the accompanying drawings, identical component uses identical appended drawing reference.Attached drawing is not according to actual ratio.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings.
The present invention provides a kind of shale gas batch production wellbore construction methods, mainly have following steps:
(1) well depth is designed with shale gas, wammel is selected according to " GB/T5609-1999 oil-well rig form and basic parameter "
The model (such as 50 types/70 type drilling machines) of machine 200, wherein the mating guide rail shifter of big drilling machine 200 or step-by-step movement mobile device,
Drilling-machine shifter speed is in 5m/h or more；Drilling-in unit 100 selects 30 type vehicle moving drilling machines, and but not limited to this.
(2) referring to Fig.1, equipment installation, the debugging of the 1st mouthful of well 1 completion drilling-in unit 100 in well factory platform, reach out
Brill condition.
Drilling operation is opened using the eye and one of leading that drilling-in unit 100 completes the 1st mouthful of well 1, and is leading tripping in conduit 10 at eye,
One spud in into position tripping in surface pipe 20, mobile drilling-in unit 100 repeats the to the 2nd mouthful of well 2 after cementing bruising 12 hours
The operation of 1 mouthful of well, the eye and one of leading for being sequentially completed N mouthfuls of well N open drilling operation (N is total well number in platform).Cementing is touched
The application of pressure was not limited with 12 hours, but was passed through for several times it is demonstrated experimentally that being within bruising 12 hours that economic and safe combination is best
Time point.
The completion of N mouthfuls of wells lead eye and one open drilling operation after, drilling-in unit cooperation well cementation sweeps plug recession from well site.
(3) see Fig. 2, when drilling-in unit 100 is moved to the 4th mouthful of well 4 (the 1st mouthful of well spacing of distance from reach 30m or more), greatly
Drilling machine 200 enters well site and carries out equipment installation, debugging the 1st mouthful of 1 position of well, and wellhead blowout preventor group, connection well control are opened in assembling two
Manifold, pressure testing reach two and spud in condition；Wherein, two open top drilling during, configure water base brill using the off-line operation time
Well liquid.It should be noted that drilling-in unit 100, when being moved to the 4th mouthful of well 4, big drilling machine 200 is saved and is compared the most into well site
The activity duration of safety certainly, can also appropriate adjustment drilling-in unit 100 and big drilling machine 200 according to specific well spacing and the condition of production
The well head quantity being spaced.
Again see Fig. 3, two are completed using big drilling machine 200 and opens drilling operation, drifting and electrical measurement, tripping in protective casing 30, note
Big drilling machine 200 is moved integrally to the 2nd mouthful of well 2 after cement bruising 12 hours, is repeated the operation of the 1st mouthful of well 1, is sequentially completed N mouthfuls
The drillng operation of well.Wherein, using the off-line operation time, the upper level casing head of a well is installed.
(4) see Fig. 4, after N mouthfuls of well cementing wells, big drilling machine 200, Hou Ning is not moved, during which carries out well control device
Connection, lower probing plug, bores plug at pressure testing；Three spud in into, drifting, electrical measurement；Lower production casing 40, after cementing 12 hours, big drilling machine
200 to N-1 mouthfuls wells.It is sequentially completed the drillng operation of the 2nd mouthful of well 2 and the 1st mouthful of well 1 of N-2, N-3 ...；
(5) finally see Fig. 5, after the 1st mouthful of 1 cementing of well, big drilling machine 200, Hou Ning is not moved, and well control device, examination are installed
Pressure, lower probing plug sweep plug, scrape wall, latus rectum, for perforating fluid, survey cementing quality, casing pressure test；Big drilling machine is moved to after pressure testing
2nd mouthful of well 2, until N mouthfuls of wells.Cover board flange is installed after N mouthfuls of well operations, drilling tool is got rid of, puts derrick, resettlement.Wherein, sharp
With the off-line operation time, the cover board flange of a well is installed.
Big drilling machine 200 will enter the brill of next well the same process after the drillng operation for completing the every procedure of each well
Well operations, to reduce the nonproductive time of drilling machine.It is contemplated that the well cementation for not needing drilling machine coordinative construction, well logging process stages are stayed
To cementer and Logging Company.This period, drilling machine then carried out drilling machine construction operation in next well.
Specific embodiment:
The content of proposed adoption know-how protection of the present invention is shale gas well batch production boring method, including drilling-machine shifter selects
Type and quick moving device select, working procedure is connected, drilling machine off-line operation project etc..Implementation method following steps:
(1) installation of 30 type truck-mounted drilling rig equipment, debugging are completed in the 1st mouthful of well of well factory platform, reaches the condition of spudding in.
(2) it completes the 1st mouthful of well using 30 type truck-mounted drilling rigs and leads eye and one to open drilling operation, move back within cementing bruising 12 hours
Dynamic drilling machine repeats the operation of the 1st mouthful of well to the 2nd mouthful of well, and the eye and one of leading for being sequentially completed N mouthfuls of wells opens drilling operation (N is platform
Interior well number).
(3) when 30 type truck-mounted drilling rigs are moved to the 4th mouthful of well (the 1st mouthful of well 30m or more of distance), 50 type drilling machines enter well site
It is set in the 1st mouthful of well location and carries out equipment installation, debugging, wellhead blowout preventor group is opened in assembling two, connection well control manifold, pressure testing reach two and open
It spuds in condition；
(4) after N mouthfuls of wells complete drilling operation, truck-mounted drilling rig cooperation well cementation sweeps plug recession from well site.
(5) two are completed using 50 type drilling machines and opens drilling operation, drifting and electrical measurement, tripping in protective casing, cementing bruising
Drilling machine is moved integrally to the 2nd mouthful of well after 12 hours, is repeated the 1st mouthful of well operation, is sequentially completed the drillng operation of N well.
After (6) N mouthfuls of well cementing wells, mobile drill, between waiting the waiting-on-cement, does not carry out well control device connection, pressure testing；
Lower probing plug bores plug；Three spud in into, drifting, electrical measurement；Lower production casing, cementing, after cemented 12 hours, drilling machine is moved to
N-1 mouthfuls of wells.It is sequentially completed the drillng operation of the 2nd mouthful of well and the 1st mouthful of well of N-2, N-3 ...；
After (7) the 1st mouthfuls of well cementings, mobile drill, Hou Ning, installation well control device, lower probing plug, do not sweep plug, scrape at pressure testing
Wall, latus rectum replace perforating fluid, survey cementing quality, casing pressure test；Big drilling machine is moved to the 2nd mouthful of well after pressure testing, until N mouthfuls of wells.
Cover board flange is installed after N mouthfuls of operations, drilling tool is got rid of, puts derrick, resettlement.
In conclusion the beneficial effects of the present invention are:
1, the present invention respectively opens time drillng operation content, drilling equipment, drilling fluid types and drilling tool according to shale gas well
With materials'use situation, shale gas drillng operation process is divided into multiple stages, and surface layer is bored using vehicle-mounted small-sized drill, it is large-scale
The factorial construction work pattern of drilling machine brill deep layer.By the seamless connection of process, shale gas is realized in the cooperation of different model drilling machine
The purpose of drilling speed drop originally.
2, the present invention carries out the base of network analysis in the construction operation content and device therefor and material to shale gas drilling well
On plinth, by the way that shale gas drilling well process is recombinated and optimized, a set of batch production wellbore construction work flow method is formd.
Using the batch production drillng operation method, it is substantially shorter drilling equipment and stops the equal times, equipment efficiency of usage is improved, to realize
Shorten the shale gas wellbore construction period, reduces the purpose of drilling cost.Batch production wellbore construction process proposed by the present invention,
The complete time in drilling well can be made to shorten 80%, drilling period shortens 30%, and cost reduces by 20% or more.
Although the explanation of nouns of relevant technical terms is by reference to preferred embodiment, invention has been described, not
In the case where departing from the scope of the present invention, various improvement can be carried out to it and can replace component therein with equivalent.
Especially, as long as structural conflict is not present, items technical characteristic mentioned in the various embodiments can combine in any way
Get up.The invention is not limited to specific embodiments disclosed herein, but all including what is fallen within the scope of the appended claims
Technical solution.
Claims (9)
1. a kind of shale gas batch production wellbore construction method, which comprises the following steps:
(1) well depth is designed with shale gas, selectes the model of big drilling machine and drilling-in unit；
(2) well factory platform disposes N mouthfuls of wells altogether, completes equipment installation, the debugging of drilling-in unit in the 1st mouthful of well, reaches to open and spud in
Condition；Drilling operation is opened using the eye and one of leading that drilling-in unit completes the 1st mouthful of well, after injecting well cementing of cement bruising, the drilling-in unit
It is moved to the 2nd mouthful of well and repeats the above-mentioned operation of the 1st mouthful of well, the eye and one of leading for being sequentially completed remaining N-2 mouthfuls of well opens drilling operation；
(3) when drilling-in unit is moved to apart from described 1st mouthful at least 30 meters of well of a specific well head, wammel is completed in the 1st mouthful of well
Equipment installation, the debugging of machine, reach two and spud in condition；Two, which are completed, using big drilling machine opens drilling operation, tripping in protective casing, note
The big drilling machine is moved to the 2nd mouthful of well and repeats the above-mentioned operation of the 1st mouthful of well after well cementing of cement bruising, is sequentially completed remaining N-2
The two of mouth well open drilling operation；
(4) after big drilling machine completes N mouthfuls of well cementing wells, big drilling machine is not moved；It waits after coagulating, using big drilling machine to N mouthfuls
Well completes three and opens drilling operation, and lower production casing, big drilling machine is moved to N-1 mouthfuls of wells and carries out three and opens after cementing well bruising
Drilling operation, be sequentially completed remaining well three open drilling operation；
(5) after big drilling machine completes the cementing well bruising of the 1st mouthful of well, big drilling machine is not moved；Hou Ning, installation well control device, under
Probing plug sweeps plug, scrapes wall, latus rectum, for perforating fluid, survey cementing quality, casing pressure test；Big drilling machine is moved to the 2nd mouthful after pressure testing
Well repeats the above-mentioned operation of the 1st mouthful of well, until N mouthfuls of wells；Cover board flange is installed after N mouthfuls of well operations.
2. shale gas batch production wellbore construction method according to claim 1, which is characterized in that described in step (3)
Specific well head is the 4th mouthful of well.
3. shale gas batch production wellbore construction method according to claim 1, which is characterized in that in step (2) to step
(5) wait in, after cement bruising is 12 hours.
4. shale gas batch production wellbore construction method according to claim 1, which is characterized in that in step (2), utilize
The off-line operation time configures water-base drilling fluid.
5. shale gas batch production wellbore construction method according to claim 1, which is characterized in that in step (3), utilize
The off-line operation time configures oil base drilling fluid.
6. shale gas batch production wellbore construction method according to claim 1, which is characterized in that in step (2), when
The completion of N mouthfuls of wells lead eye and one open drilling operation after, drilling-in unit cooperation well cementation sweeps plug recession from well site.
7. shale gas batch production wellbore construction method according to claim 1, which is characterized in that in step (1), bradawl
Machine uses 30 type vehicle moving drilling machines.
8. shale gas batch production wellbore construction method according to claim 1, which is characterized in that in step (1), wammel
Machine uses 50 type drilling machines or 70 type drilling machines, and drilling machine fast moves drilling machine or stepping churn using rail mounted.
9. shale gas batch production wellbore construction method according to claim 1, which is characterized in that in step (5), utilize
The off-line operation time installs the cover board flange of a well.
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| CN111794742B (en) * | 2020-08-28 | 2022-10-04 | 四川长宁天然气开发有限责任公司 | Shale gas drilling engineering tracking deduction method |
| CN111794743B (en) * | 2020-08-28 | 2022-10-21 | 四川长宁天然气开发有限责任公司 | Shale gas well engineering tracking deduction method |
| CN112253078B (en) * | 2020-11-06 | 2022-03-11 | 中国石油集团渤海钻探工程有限公司 | Construction process for well testing and completion in well cluster field |
| CN112418650A (en) * | 2020-11-19 | 2021-02-26 | 中国石油天然气集团有限公司 | Method and device for determining petroleum drilling construction progress |
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| CN102493794B (en) * | 2011-12-13 | 2017-11-21 | 王建生 | Mixing wastewater with air liquid jet drilling is quincunx radially horizontal well coal bed methane exploring method |
| EP2823129A2 (en) * | 2012-03-06 | 2015-01-14 | Itrec B.V. | Modular drilling rig system |
| CN105064990B (en) * | 2015-08-18 | 2017-11-28 | 西南石油大学 | A kind of construction modeling method by horizontal well three-dimensional visualization Strata Comparison |
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