CN102296945A - Blasting fracture yield-increasing method for hyposmosis hydrocarbon zone of petroleum producing well - Google Patents
Blasting fracture yield-increasing method for hyposmosis hydrocarbon zone of petroleum producing well Download PDFInfo
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- CN102296945A CN102296945A CN2011101443357A CN201110144335A CN102296945A CN 102296945 A CN102296945 A CN 102296945A CN 2011101443357 A CN2011101443357 A CN 2011101443357A CN 201110144335 A CN201110144335 A CN 201110144335A CN 102296945 A CN102296945 A CN 102296945A
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Abstract
The invention discloses a blasting fracture yield-increasing method for a hyposmosis hydrocarbon zone of a petroleum producing well, which particularly comprises the steps of: firstly, drilling a small hole in the windowing side in an explored straight well along the horizontal direction, wherein a hyposmosis hydrocarbon zone is selected as the position of the windowing side to be drilled; secondly, conveying a plurality of groups of explosive columns to a horizontal small hole section by adopting a soft pipeline conveying manner, and completing blasting; and thirdly, carrying out hydrocarbon production after formation testing of a sieve tube for acquiring production. The invention can solve the technical problem of capability of greatly increasing porosity and permeability of the hyposmosis hydrocarbon zone.
Description
Technical field
The present invention relates to a kind of oil exploitation technology, particularly a kind of energy output technology method that improves the oil-gas reservoir reservoir.
Background technology
At present, China is in oil-gas field development, and the routine of low osmoticing oil-gas layer exploitation output does not generally all reach the index of commercial hydrocarbon flow.In order to improve the production capacity of these oil-gas reservoir reservoirs, just must solve the connection of the intrinsic fracture of reservoir inside, significantly increase the degree of porosity and the permeability of reservoir, increase the water conservancy diversion area of liquids and gases.
In order to solve this difficult problem, just must find out and a kind ofly can effectively change the degree of porosity of low osmoticing oil-gas layer and the technical method of permeability, reach the purpose that increases production capacity.
Summary of the invention
The explosion fracturing yield increasing method that the purpose of this invention is to provide a kind of petroleum well low osmoticing oil-gas layer significantly increases the degree of porosity of low osmoticing oil-gas layer and the technical problem of permeability to solve.
The present invention realizes goal of the invention by following method:
At first, window sidetracking slim-hole in the straight well of having drilled, drilling direction is a level, the low osmoticing oil-gas layer place is selected in the window sidetracking position;
Secondly, the mode of taking the consistent lubricant pipe to carry will be organized explosive column more and deliver to horizontal slim-hole section, finish explosion;
The 3rd, carry out the screen casing formation testing and ask and implement oil-gas mining postpartum.
The bore diameter that described slim-hole is crept into is less than 120mm.
Described slim-hole is crept into to many mouthfuls of horizontal branch wells of multi-faceted probing, also is the pinniform well.
Described explosive column is placed in the horizontal segment slim-hole of 100-1000 rice.
Described explosive column is the mixture packaged explosive post of black powder and TNT explosive.
The present invention has following advantage and good effect:
(1) the window sidetracking SLIM-HOLE DRILLING TECHNOLOGY can be saved the material cost of horizontal well drilling, has also accelerated rate of penetration simultaneously greatly, and general cost per unit is 50% of a conventional levels well.
(2) enforcement explosion pressure break is suitable with water-based fracturing;
(3) explosion pressure break well yield is more than 10 times of conventional water-based fracturing well in operation.
(4) present technique relates to the energy extraction industry, is the crucial new technology work measure that changes a large amount of low osmoticing oil-gas layers in domestic low-permeability oil gas field at present; This advanced technology is used in domestic each oil field, and transformation and large-area low permeability oil field exploratory area at present hundreds of thousands mouth low yield oil gas well just can obtain hundred million yuan of year hundreds ofs or huger economic benefit;
(5) this construction operation technical scheme simple and feasible, job practices is safe and efficient, and effect of increasing production is huge, and economic benefit is outstanding.
Description of drawings
Fig. 1 is an explosion pressure break mechanism schematic diagram of the present invention.
Fig. 2 is the straight well sidetracking of the present invention slim-hole horizontal well probing figure that windows.
Fig. 3 is a net horizontal section explosion pressure break schematic diagram of the present invention.
The specific embodiment
Details are as follows for basic technique principle of the present invention and generation stress wave activity:
Referring to Fig. 1, a tree name laboratory experiment proves that mixture packaged explosive post 2 can produce two kinds of stress effects to the stratum after exploding in the stratum.The high pressure that first blast is produced, high-temperature gas can cause huge " shock wave " its energy within 1 meter of radius to the stratum, and the shock wave peak value of the composite explosives post of 15KG standard black gunpowder and TNT explosive is: 148MPa; Along with the increase stress of distance reduces, the peak value at 3 meters is 11MPa.It two is that structures such as crack 1, dissolution pore to the stratum produce stress wave activity: the end of self-open and structure forms stress and concentrates in the stratum, expand the crack structure and form new crack and fragmentation, change and be communicated with the crack and the dissolution pore in each orientation on stratum, reach the overall seepage area that increases low osmoticing oil-gas layer 4, and then reach the purpose that improves the oil gas production capacity.Stress direction 3 has been shown, window sidetracking position 5, straight well section 6 and packer 7 among Fig. 1.
Concrete technical scheme of the present invention and implementation procedure are referring to Fig. 2,3:
(1) this technology can be in the straight well of having drilled window sidetracking, use 5 cun half drill bit 11 to add the horizontal drilling instrument and creep into, drilling rod 13 adopts 3.5 ", drill bit 11 rears are hydraulic motor 12, drilling rod 13 connects by joint 8 and bores ships 9.Be provided with packer 14 in straight well section 6 bottoms.Can bore dark 100-1000 rice according to design, the bore diameter that described slim-hole is crept into is less than 120mm.Described slim-hole is crept into to many mouthfuls of horizontal branch wells of multi-faceted probing, also is the pinniform well.The hyposmosis target zone is implemented the composite explosives explosion, change how much states of oil reservoir position preexisting crack, the rock on the flat section of direct broken oil and gas well stratum, the crack on increase stratum, strengthen the water conservancy diversion area on stratum, can reach the effect of the volume increase oil gas about ten times.
(2) the best use of this technology example is to carry out sidetracking to window in straight well, carries out slim-hole [bore diameter is less than 120mm] and creeps into; And can many mouthfuls of horizontal branch well 16[of multi-faceted probing also be the pinniform well].In the oil gas well stratum that the level of having implemented is crept into, can implement the operation that multistage makes up disposable explosion, the explosive that uses all can use in the horizontal segment of 100-1000 rice as the mixture packaged explosive post 2 of black powder and TNT explosive.Near straight well section 6 one sides, be provided with packer 7 at composite explosives post 2.Also show oil jacket tube wall 17,89mm consistent lubricant pipe 18, joint 8 and 89mm drilling rod 19 among Fig. 3.
The proportioning of described mixture packaged explosive body should be determined proper proportion according to crack, the isostructure development degree in appearance hole of work layer.General basic ratio is that black powder and TNT are 1: 3 proportioning.
Claims (5)
1. the explosion fracturing yield increasing method of a petroleum well low osmoticing oil-gas layer, concrete steps are as follows:
At first, window sidetracking slim-hole in the straight well of having drilled, drilling direction is a level, the low osmoticing oil-gas layer place is selected in the window sidetracking position;
Secondly, the mode of taking the consistent lubricant pipe to carry will be organized explosive column more and deliver to horizontal slim-hole section, finish explosion;
The 3rd, carry out the screen casing formation testing and ask and implement oil-gas mining postpartum.
2. the explosion fracturing yield increasing method of a kind of petroleum well low osmoticing oil-gas layer according to claim 1 is characterized in that the bore diameter that described slim-hole is crept into is less than 120mm.
3. the explosion fracturing yield increasing method of a kind of petroleum well low osmoticing oil-gas layer according to claim 1 and 2 is characterized in that, described slim-hole is crept into to many mouthfuls of horizontal branch wells of multi-faceted probing, also is the pinniform well.
4. the explosion fracturing yield increasing method of a kind of petroleum well low osmoticing oil-gas layer according to claim 1 is characterized in that, described explosive column is placed in the horizontal segment slim-hole of 100-1000 rice.
5. the explosion fracturing yield increasing method of a kind of petroleum well low osmoticing oil-gas layer according to claim 1 is characterized in that, described explosive column is the mixture packaged explosive post of black powder and TNT explosive.
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| CN2011101443357A CN102296945A (en) | 2011-05-31 | 2011-05-31 | Blasting fracture yield-increasing method for hyposmosis hydrocarbon zone of petroleum producing well |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334734A (en) * | 2013-06-09 | 2013-10-02 | 中国石油天然气股份有限公司 | Transformation method of interlayer in SAGD (Steam Assisted Gravity Drainage) well |
| CN104520526A (en) * | 2012-10-10 | 2015-04-15 | 卡梅伦国际有限公司 | Horizontal fracturing tree |
| CN107091078A (en) * | 2017-06-15 | 2017-08-25 | 新疆国利衡清洁能源科技有限公司 | Underground coal gasification passage and its method |
| US10385644B2 (en) | 2011-08-05 | 2019-08-20 | Camron International Corporation | Fracturing trees with horizontally offset connections |
| US10385643B2 (en) | 2011-09-23 | 2019-08-20 | Cameron International Corporation | Fracturing manifold systems and methods |
| CN110344806A (en) * | 2018-04-02 | 2019-10-18 | 中国石油化工股份有限公司 | A kind of slim-hole explosion seam auxiliary hydraulic fracturing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2246611C2 (en) * | 2002-08-12 | 2005-02-20 | Открытое акционерное общество "Промгаз" | Method for increasing coal and hydrogen yield of fuel bed |
| CN101498210A (en) * | 2008-12-18 | 2009-08-05 | 中国石油集团长城钻探工程有限公司 | Coal bed gas slim hole hydraulic jet directional fracturing production increasing method |
| US20110017445A1 (en) * | 2008-03-06 | 2011-01-27 | Rune Freyer | Method and Device for Making Lateral Openings out of a Wellbore |
-
2011
- 2011-05-31 CN CN2011101443357A patent/CN102296945A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2246611C2 (en) * | 2002-08-12 | 2005-02-20 | Открытое акционерное общество "Промгаз" | Method for increasing coal and hydrogen yield of fuel bed |
| US20110017445A1 (en) * | 2008-03-06 | 2011-01-27 | Rune Freyer | Method and Device for Making Lateral Openings out of a Wellbore |
| CN101498210A (en) * | 2008-12-18 | 2009-08-05 | 中国石油集团长城钻探工程有限公司 | Coal bed gas slim hole hydraulic jet directional fracturing production increasing method |
Non-Patent Citations (2)
| Title |
|---|
| 张义 等: "煤层气低产井低产原因及增产改造技术", 《开发工程》, vol. 30, no. 6, 30 June 2010 (2010-06-30) * |
| 李勇等: "小眼井定向侧钻技术在新46井的应用", 《钻采工艺》, vol. 23, no. 04, 25 April 2000 (2000-04-25) * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10385644B2 (en) | 2011-08-05 | 2019-08-20 | Camron International Corporation | Fracturing trees with horizontally offset connections |
| US10428614B2 (en) | 2011-08-05 | 2019-10-01 | Cameron International Corporation | Horizontal fracturing tree |
| US10538987B2 (en) | 2011-08-05 | 2020-01-21 | Cameron International Corporation | Horizontal fracturing tree |
| US10711556B1 (en) | 2011-08-05 | 2020-07-14 | Cameron International Corporation | Fracturing trees with horizontally offset connections |
| US10385643B2 (en) | 2011-09-23 | 2019-08-20 | Cameron International Corporation | Fracturing manifold systems and methods |
| CN104520526A (en) * | 2012-10-10 | 2015-04-15 | 卡梅伦国际有限公司 | Horizontal fracturing tree |
| CN103334734A (en) * | 2013-06-09 | 2013-10-02 | 中国石油天然气股份有限公司 | Transformation method of interlayer in SAGD (Steam Assisted Gravity Drainage) well |
| CN107091078A (en) * | 2017-06-15 | 2017-08-25 | 新疆国利衡清洁能源科技有限公司 | Underground coal gasification passage and its method |
| CN110344806A (en) * | 2018-04-02 | 2019-10-18 | 中国石油化工股份有限公司 | A kind of slim-hole explosion seam auxiliary hydraulic fracturing method |
| CN110344806B (en) * | 2018-04-02 | 2021-11-26 | 中国石油化工股份有限公司 | Auxiliary hydraulic fracturing method for small borehole explosion seam construction |
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Application publication date: 20111228 |