CN106761652A - Orientation windowing horizontal drilling, coring and matching method - Google Patents
Orientation windowing horizontal drilling, coring and matching method Download PDFInfo
- Publication number
- CN106761652A CN106761652A CN201611214024.2A CN201611214024A CN106761652A CN 106761652 A CN106761652 A CN 106761652A CN 201611214024 A CN201611214024 A CN 201611214024A CN 106761652 A CN106761652 A CN 106761652A
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- horizontal drilling
- major fracture
- fracturing
- blocked
- whipstock
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- 238000005553 drilling Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 20
- 206010017076 Fracture Diseases 0.000 claims abstract description 41
- 239000012530 fluid Substances 0.000 claims abstract description 17
- 230000000694 effects Effects 0.000 claims abstract description 10
- 208000010392 Bone Fractures Diseases 0.000 claims description 31
- 238000005516 engineering process Methods 0.000 abstract description 17
- 239000003795 chemical substances by application Substances 0.000 description 7
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 230000001965 increasing effect Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 238000003325 tomography Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
- E21B43/267—Methods for stimulating production by forming crevices or fractures reinforcing fractures by propping
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The present invention relates to one kind orientation windowing horizontal drilling, coring and matching method, the technique is comprised the following steps：（1）Using super short radius horizontal drilling instrument drilling well, under the guide effect of whipstock, horizontal hole is formed；（2）Blocked using packer at whipstock above sleeve pipe；（3）Fracturing fluid is injected using fracturing string, stratum is formed major fracture；（4）Major fracture is blocked with diverting agent；（5）The 10MPa of pressure 5 of fracturing fluid is improved, is injected again by fracturing string, make stratum that a large amount of secondary fractures are formed around major fracture.The present invention is that super short radius horizontal drilling is combined with seam net pressure break, on the basis of original technology, can determine that the direction of lateral aperture, increase bore diameter and length, common pressure break is changed to stitch net pressure break, in Remaining Oil, improve the aspects such as low-permeability oil deposit, there is provided a kind of new technology that increases production and improves productivity, well yield can improve more than ten times.
Description
Technical field
The invention belongs to oilfield technology field, it is related to a kind of orientation windowing horizontal drilling, coring and matching method.
Background technology
In oilfield development process, due to exploiting the increase of difficulty, all kinds of technologies that increase production and improve productivity are continued to bring out, be mentioned herein
Ultra-short radius orientation windowing horizontal drilling, coring and supporting technology be also the common technology for increasing production and improying productivity in recent years, implementing
During above-mentioned two technologies, a bite well is typically all appeared in monotechnics, while occurring that ultra-short radius horizontal drilling（It is high
Pressure flexible pipe injection drilling）With reference to common fracturing technique, due to ultra-short radius horizontal drilling（High-pressure hose injection drilling）Into ground
Direction after layer is uncertain, the sharp contrast of common pressure break and seam net pressure break, may be to the effect that is increased production and improved productivity after implementation
Fruit has very big influence.
The content of the invention
It is an object of the invention to provide one kind orientation windowing horizontal drilling, coring and matching method, current all kinds of increasings are overcome
Produce increase water injection technology to be all single use, the poor problem of oilfield stimulation effect, herein with ultra-short radius bonding crack net fracturing technique
As a example by, describe the superiority of the supporting technology in detail.
Ultra-short radius bonding crack net pressure break is achieved through the following technical solutions：One kind orientation windowing horizontal drilling, coring
And matching method, the method comprises the following steps：
（1）Using super short radius horizontal drilling instrument drilling well, under the guide effect of whipstock, horizontal hole is formed；
（2）Blocked using packer at whipstock above sleeve pipe；
（3）Fracturing fluid is injected using fracturing string, stratum is formed major fracture；
（4）Major fracture is blocked with diverting agent；
（5）The pressure 5-10MPa of fracturing fluid is improved, is injected again by fracturing string, stratum is formed around major fracture greatly
Amount secondary fracture.
Described fracturing fluid and diverting agent is the known technology of those skilled in the art.Super short radius horizontal drilling
Instrument is also prior art, in appearing in Chinese patent ZL201420317237.8.
The present invention is under the conditions of the particular reservoirs such as low-porosity, a low extra-low permeability, to be answered using two level masters of reservoir
The relation of power difference and fracture extension net pressure, once fracture extension net pressure is realized more than two differences of horizontal principal stress,
Branch will be produced to stitch, after branch's seam links up intrinsic fracture, continue to extend along intrinsic fracture, form preliminary seam net system,
Branch's seam may be returned to original fracture orientation again after certain length is extended apart from main seam, or open some and be seamed into master
Branch's seam of certain angle, can finally form crisscross " netted seam " system with major fracture as trunk.Using multi items
Liquid coordinates segmentation plug injection, coordinates turnaround fracture technology, and after intrinsic fracture is formed, input diverting agent is temporary transient by intrinsic fracture
Block, increase operational discharge capacity and improve net pressure in seam, on the basis of intrinsic fracture and man-made fracture, form complicated seam dictyosome
System, finally using efficiently taking sand fracturing fluid and being stuffed entirely with crack, reaches seam net system and effectively supports comprehensively.
Using the good effect of above-mentioned technical proposal：The present invention is by super short radius horizontal drilling and seam net pressure break phase
With reference to, on the basis of original technology, the direction of lateral aperture is can determine that, increase bore diameter and length, common pressure break is changed to
Seam net pressure break, in Remaining Oil, improves the aspects such as low-permeability oil deposit, there is provided a kind of new technology that increases production and improves productivity, individual well is produced
Amount can improve more than ten times；With orientation windowing horizontal drilling be combined also have coring, the related supporting technology such as handle up, to tomography
The exploitation of remaining oil and similar oil reservoir and understanding have great significance.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
In figure, 1 whipstock, 2 sleeve pipes, 3 packers, 4 fracturing strings, 5 major fractures, 6 secondary fractures.
Specific embodiment
Technical scheme is described further with reference to embodiment, but be should not be construed as to of the invention
Limitation：
Embodiment 1
Fig. 1 is structural representation of the invention, and arrow show fracturing fluid injection direction, orientation windowing level of the invention in figure
Drilling, coring and matching method are tested on oil field, 1762.39 meters of well depth, and method is comprised the following steps when using：
（1）Using super short radius horizontal drilling instrument drilling well, under the guide effect of whipstock 1, horizontal hole is formed；
（2）Blocked using packer 3 at the sleeve pipe 2 of whipstock more than 1；
（3）Fracturing fluid is injected using fracturing string 4, pressure 36MPa makes stratum form major fracture 5；
（4）Major fracture 5 is blocked with diverting agent；
（5）The pressure 5-10MPa of fracturing fluid is improved, is injected again by fracturing string 4, stratum is formed around major fracture 5
A large amount of secondary fractures 6.
Embodiment 2
Orientation windowing horizontal drilling of the invention, coring and matching method are tested on oil field, and 2301.9 meters of well depth is used
Shi Fangfa is comprised the following steps：
（1）Using super short radius horizontal drilling instrument drilling well, under the guide effect of whipstock 1, horizontal hole is formed；
（2）Blocked using packer 3 at the sleeve pipe 2 of whipstock more than 1；
（3）Fracturing fluid is injected using fracturing string 4, pressure 44.6MPa makes stratum form major fracture 5；
（4）Major fracture 5 is blocked with diverting agent；
（5）The pressure 5-10MPa of fracturing fluid is improved, is injected again by fracturing string 4, stratum is formed around major fracture 5
A large amount of secondary fractures 6.
Embodiment 3
Orientation windowing horizontal drilling of the invention, coring and matching method are tested on oil field, and 3262.65 meters of well depth makes
Used time method is comprised the following steps：
（1）Using super short radius horizontal drilling instrument drilling well, under the guide effect of whipstock 1, horizontal hole is formed；
（2）Blocked using packer 3 at the sleeve pipe 2 of whipstock more than 1；
（3）Fracturing fluid is injected using fracturing string 4, pressure 55.2MPa makes stratum form major fracture 5；
（4）Major fracture 5 is blocked with diverting agent；
（5）The pressure 5-10MPa of fracturing fluid is improved, is injected again by fracturing string 4, stratum is formed around major fracture 5
A large amount of secondary fractures 6.
Embodiment 4
Orientation windowing horizontal drilling of the invention, coring and matching method are tested on oil field, and 1391.2 meters of well depth is used
Shi Fangfa is comprised the following steps：
（1）Using super short radius horizontal drilling instrument drilling well, under the guide effect of whipstock 1, horizontal hole is formed；
（2）Blocked using packer 3 at the sleeve pipe 2 of whipstock more than 1；
（3）Fracturing fluid is injected using fracturing string 4, pressure 29MPa makes stratum form major fracture 5；
（4）Major fracture 5 is blocked with diverting agent；
（5）The pressure 5-10MPa of fracturing fluid is improved, is injected again by fracturing string 4, stratum is formed around major fracture 5
A large amount of secondary fractures 6.
Comparative example
The orientation windowing horizontal drilling of embodiment 1-4, coring and matching method, are contrasted, as a result such as following table with conventional oil well：
The present invention is that super short radius horizontal drilling is combined for example, on the basis of original technology with seam net pressure break
On, can determine that the direction of lateral aperture, increase bore diameter and length, common pressure break is changed to stitch net pressure break, Remaining Oil,
Improve the aspects such as low-permeability oil deposit, there is provided a kind of new technology that increases production and improves productivity, well yield can improve more than ten times.
Claims (1)
- It is 1. a kind of to orient windowing horizontal drilling, coring and matching method, it is characterised in that：The method is comprised the following steps：（1）Using super short radius horizontal drilling instrument drilling well, under the guide effect of whipstock, horizontal hole is formed；（2）Blocked using packer at whipstock above sleeve pipe；（3）Fracturing fluid is injected using fracturing string, stratum is formed major fracture；（4）Major fracture is blocked with diverting agent；（5）The pressure 5-10MPa of fracturing fluid is improved, is injected again by fracturing string, stratum is formed around major fracture greatly Amount secondary fracture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611214024.2A CN106761652A (en) | 2016-12-26 | 2016-12-26 | Orientation windowing horizontal drilling, coring and matching method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611214024.2A CN106761652A (en) | 2016-12-26 | 2016-12-26 | Orientation windowing horizontal drilling, coring and matching method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106761652A true CN106761652A (en) | 2017-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611214024.2A Pending CN106761652A (en) | 2016-12-26 | 2016-12-26 | Orientation windowing horizontal drilling, coring and matching method |
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| CN (1) | CN106761652A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102220842A (en) * | 2011-05-13 | 2011-10-19 | 张朝纯 | Radial high-pressure water jetting composite well with ultrashort radius as well as well completion tool and technology |
| CN103899349A (en) * | 2014-04-23 | 2014-07-02 | 重庆市能源投资集团科技有限责任公司 | Coal seam gas extraction method and extraction hole radial drilling guide device |
| CN103953323A (en) * | 2014-05-08 | 2014-07-30 | 西南石油大学 | Hydraulic fracturing technology for horizontal well with fractures |
| CN104912485A (en) * | 2015-06-23 | 2015-09-16 | 北京泰坦通源天然气资源技术有限公司 | Well completion method with shale gas layer radial jetting drilling and volume fracturing combined |
| CN105201478A (en) * | 2015-09-30 | 2015-12-30 | 大庆井泰石油工程技术股份有限公司 | Oil and gas well fracture network system fracturing technology |
| CN204960803U (en) * | 2015-09-22 | 2016-01-13 | 中国石油集团川庆钻探工程有限公司 | Window-opening rotary hole-distribution guider for coiled tubing jet drilling casing |
| CN205477510U (en) * | 2016-02-01 | 2016-08-17 | 河北易压得石油科技有限公司 | Fine and close oil and gas reservoir horizontal well crack is stifled structure that turns to temporarily |
-
2016
- 2016-12-26 CN CN201611214024.2A patent/CN106761652A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102220842A (en) * | 2011-05-13 | 2011-10-19 | 张朝纯 | Radial high-pressure water jetting composite well with ultrashort radius as well as well completion tool and technology |
| CN103899349A (en) * | 2014-04-23 | 2014-07-02 | 重庆市能源投资集团科技有限责任公司 | Coal seam gas extraction method and extraction hole radial drilling guide device |
| CN103953323A (en) * | 2014-05-08 | 2014-07-30 | 西南石油大学 | Hydraulic fracturing technology for horizontal well with fractures |
| CN104912485A (en) * | 2015-06-23 | 2015-09-16 | 北京泰坦通源天然气资源技术有限公司 | Well completion method with shale gas layer radial jetting drilling and volume fracturing combined |
| CN204960803U (en) * | 2015-09-22 | 2016-01-13 | 中国石油集团川庆钻探工程有限公司 | Window-opening rotary hole-distribution guider for coiled tubing jet drilling casing |
| CN105201478A (en) * | 2015-09-30 | 2015-12-30 | 大庆井泰石油工程技术股份有限公司 | Oil and gas well fracture network system fracturing technology |
| CN205477510U (en) * | 2016-02-01 | 2016-08-17 | 河北易压得石油科技有限公司 | Fine and close oil and gas reservoir horizontal well crack is stifled structure that turns to temporarily |
Non-Patent Citations (1)
| Title |
|---|
| 王瑞和: "《工艺钻井技术基础》", 28 February 1995 * |
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