CN204371293U - Well fracturing technique is with from solution tension blastomere - Google Patents
Well fracturing technique is with from solution tension blastomere Download PDFInfo
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- CN204371293U CN204371293U CN201420813510.6U CN201420813510U CN204371293U CN 204371293 U CN204371293 U CN 204371293U CN 201420813510 U CN201420813510 U CN 201420813510U CN 204371293 U CN204371293 U CN 204371293U
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Abstract
Well fracturing technique is with from solution tension blastomere, and pressure break ball is double-decker, and skin is organic material layer, and internal layer is metal level or metal and ceramic composite material.According to well fracturing technique pressure break ball of the present utility model, can according to fracturing technology need control fracturing ball from dissolution time, can dissolve rapidly after fracture job terminates, not need the row of returning to operate, can greatly improve fracturing work efficiency.
Description
Technical field
The utility model relates to a kind of well fracturing technique pressure break ball, particularly relates to a kind of pressure break ball of staged fracturing technique.
Background technology
Along with deepening continuously of In Oil Field Exploration And Development and being showing improvement or progress day by day of production technique, oil-gas reservoir fracturing technique is more and more applied, the important measures having become Low permeable oil and gas reservoirs transformation and increased production and improved productivity.Pressure break ball for blocking up sleeve temporarily in fracturing process is generally made up of nylon, and in use pressure break club deforms, and is easily stuck in sliding sleeve, causes the interruption of operation; Existing pressure break ball owing to not dissolving in fracturing fluid in addition, usually needs the row of returning to operate, reduce production efficiency.
Summary of the invention
The purpose of this utility model is the defect overcoming existing conventional pressure break ball existence, provides a kind of from dissolving laminated blastomere.
According to first aspect of the present utility model, provide a kind of well fracturing technique with from solution tension blastomere, pressure break ball is double-decker, and skin is organic material layer, and internal layer is metal level or metal and ceramic composite material.
Under preferable case, outer layer thickness is 0.1-3mm, and internal layer diameter is 20-120mm.
Under preferable case, outer dissolution velocity in fracturing fluid is less than the dissolution velocity of internal layer in fracturing fluid.
According to second aspect of the present utility model, provide a kind of well fracturing technique with from solution tension blastomere, pressure break ball is three layers of solid construction from outside to inside, outer for organic material layer, intermediate layer be metal level, internal layer is porous material layer.
Under preferable case, outer layer thickness is 0.1-3mm, and intermediate layer thickness is 1-5mm, and internal layer diameter is 20-120mm.
Under preferable case, internal layer forms even dispersion structure by porous ceramics and metal composite.More preferably in situation, porous ceramics with metal composite before its own face first coated skim metal.
Under preferable case, organic material layer, metal level and the porous material layer dissolution velocity in fracturing fluid is accelerated successively.
According to the well fracturing technique of utility model with from solution tension blastomere, by composition and the thickness of each Rotating fields of conservative control, carry out the dissolution time of control fracturing ball in fracturing fluid, support strength needs during well fracturing operation can not only be met, and it is completely solvable to can be implemented in down-hole, do not need to return operation, substantially increase production efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of well fracturing technique from solution tension blastomere according to the utility model embodiment; And
Fig. 2 is the structural representation of well fracturing technique from solution tension blastomere according to another embodiment of the utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described further.It will be appreciated by those skilled in the art that following description only for explaining the utility model but not for making any restriction to it.
See Fig. 1, in an embodiment of the present utility model, pressure break ball is double-decker, and outer 1 is organic material layer, and internal layer 3 is metal level or metal and ceramic composite material.Its ectomesoderm 1 thickness is 0.1-3mm, and internal layer 3 diameter is 20-120mm.The dissolution velocity of skin 1 in fracturing fluid is less than the dissolution velocity of internal layer 3 in fracturing fluid.Outer 1 can adopt commercially available degredation plastic, rubber or resin to be formed, such as degradable polyethylene, polypropylene.The metal level of internal layer 3 is preferably formed by one or more in calcium, magnesium, aluminium, magnadure, also can be formed by other metal.
See Fig. 2, in another embodiment of the present utility model, pressure break ball is three layers of solid construction from outside to inside, and skin 1 is organic material layer, intermediate layer 2 is metal level, internal layer 3 is porous material layer.Under normal circumstances, the thickness of outer 1 is between 0.1-3mm, and the thickness in intermediate layer 2 is between 1-5mm, and the diameter of internal layer 3 is between 20-120mm.The dissolution velocity of porous material layer in fracturing fluid of the outer organic material layer of 1, the metal level in intermediate layer 2 and internal layer 3 is accelerated successively.Outer 1 can adopt commercially available degredation plastic, rubber or resin to be formed, such as degradable polyethylene, polypropylene.Intermediate layer 2 can adopt one or more metals in aluminium, titanium, iron, zinc to be formed.Internal layer 3 forms even dispersion structure by porous ceramics and metal composite, wherein porous ceramics can be selected from one or more in kieselguhr, zeolite, white carbon, mica, vermiculite, and metal can chosen from Fe, magnesium, aluminium, copper, silicon, calcium, nickel, zinc, one or more in titanium.The material of the internal layer 3 in this embodiment forms the internal layer 3 be also applicable in embodiment shown by Fig. 1.
Kinds of processes can be adopted prepare according to well fracturing technique of the present utility model with from solution tension blastomere, such as internal layer 3 can adopt powder metallurgical technique or melting casting molding process to be formed, intermediate layer 2 can be formed by plating or chemical vapor deposition method, and outer 1 can be formed by Shooting Technique.When internal layer 3 is formed by porous ceramics and metal composite, in the preparation process of internal layer 3, in order to improve the adhesion between porous ceramics powder and metal, before porous ceramics powder and metal composite, can by chemical plating process at porous ceramics powder surface first coated skim metal.
The operating principle of well fracturing technique pressure break ball of the present utility model is described below: fracturing fluid during oil-gas mining is mainly the inorganic salts aqueous solution, such as sodium chloride and/or potassium chloride solution, due in Deep Underground, fracturing fluid has the temperature of 50-80 DEG C usually, and containing other mineral ions (such as magnesium, calcium etc.), thus the dissolving of pressure break ball can be promoted.Organic material and metal material can both be degraded wherein or dissolve, but dissolution velocity has notable difference, and different materials difference of dissolution velocity in fracturing fluid therefore can be utilized to carry out the dissolution time of control fracturing ball.
When adopting the pressure break ball of embodiment in Fig. 1 to drop into down-hole, touch containing after the electrolytical aqueous solution (i.e. fracturing fluid), the organic material of outer 1 starts slowly degraded or dissolves, fracturing work starts, after terminating when operating, internal layer 3 starts to contact fracturing fluid, and the metal of internal layer 3 and fracturing fluid form galvanic cell, dissolved rapidly by electrochemical reaction, do not need the row of returning just then can carry out fracturing work next time.
When adopting the pressure break ball of embodiment in Fig. 2 to drop into down-hole, touch containing after the electrolytical aqueous solution (i.e. fracturing fluid), the organic material of outer 1 starts slowly degraded or dissolves; After skin has dissolved, fracturing work has started, and the metal in intermediate layer 2 starts electrochemical reaction occurs, and after terminating when operating, intermediate layer 2 is dissolved completely; The porous material of internal layer 3 starts to contact fracturing fluid subsequently, and porous material layer becomes the loose structure of Dispersed precipitate due to it, can form multiple galvanic cell, electrochemical reaction occurs and starts rapid solution, until come to naught.
Fracturing work when adopting pressure break ball of the present utility model to carry out oil-gas mining, can realize within the fracturing work time, pressure break ball can provide required mechanical strength, and after fracturing work completes, pressure break ball can dissolve rapidly, does not need the row of returning just then can carry out fracturing work next time.
According to the requirement of concrete well fracturing working condition, the thickness of bilayer or three layer construction and each layer specifically can be selected to carry out the dissolution time of control fracturing ball, adapt to the requirement of working time length during fracturing work.
According to well fracturing technique pressure break ball of the present utility model, can according to fracturing technology need control fracturing ball from dissolution time, can dissolve rapidly after fracture job terminates, not need the row of returning to operate, can greatly improve fracturing work efficiency.
Claims (8)
1. well fracturing technique is with from a solution tension blastomere, it is characterized in that, pressure break ball is double-decker, and skin is organic material layer, and internal layer is metal level or metal and ceramic composite material.
2. well fracturing technique according to claim 1 is with from solution tension blastomere, it is characterized in that, outer layer thickness is 0.1-3mm, and internal layer diameter is 20-120mm.
3. well fracturing technique according to claim 1 is with from solution tension blastomere, it is characterized in that, outer dissolution velocity in fracturing fluid is less than the dissolution velocity of internal layer in fracturing fluid.
4. well fracturing technique is with from a solution tension blastomere, it is characterized in that, pressure break ball is three layers of solid construction from outside to inside, and skin is organic material layer, intermediate layer is metal level, internal layer is porous material layer.
5. well fracturing technique according to claim 4 is with from solution tension blastomere, it is characterized in that, outer layer thickness is 0.1-3mm, and intermediate layer thickness is 1-5mm, and internal layer diameter is 20-120mm.
6. well fracturing technique according to claim 4 is with from solution tension blastomere, it is characterized in that, internal layer forms even dispersion structure by porous ceramics and metal composite.
7. well fracturing technique according to claim 6 is with from solution tension blastomere, it is characterized in that, porous ceramics with metal composite before its own face first coated skim metal.
8. well fracturing technique according to claim 4 is with from solution tension blastomere, it is characterized in that, organic material layer, metal level and the porous material layer dissolution velocity in fracturing fluid is accelerated successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420813510.6U CN204371293U (en) | 2014-12-18 | 2014-12-18 | Well fracturing technique is with from solution tension blastomere |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420813510.6U CN204371293U (en) | 2014-12-18 | 2014-12-18 | Well fracturing technique is with from solution tension blastomere |
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| CN204371293U true CN204371293U (en) | 2015-06-03 |
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| CN201420813510.6U Expired - Fee Related CN204371293U (en) | 2014-12-18 | 2014-12-18 | Well fracturing technique is with from solution tension blastomere |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105001620A (en) * | 2015-07-10 | 2015-10-28 | 北京中科金腾科技有限公司 | Self-dissolving functional material for making well drilling bridge plug rubber packer and preparation method therefor |
| CN105038152A (en) * | 2015-08-11 | 2015-11-11 | 苏州固韧纳米材料技术有限公司 | Density-adjustable hypobaric fracturing ball for fracturing oil-gas well and preparation method thereof |
| CN105134155A (en) * | 2015-08-11 | 2015-12-09 | 苏州固韧纳米材料技术有限公司 | Fracturing ball of double-layer structure used for fracturing oil and gas well and preparation method thereof |
| CN112443294A (en) * | 2020-10-27 | 2021-03-05 | 百勤能源科技（惠州）有限公司 | High leakproofness medicine core soluble ball |
| CN113773823A (en) * | 2021-07-29 | 2021-12-10 | 内蒙古浦景聚合材料科技有限公司 | Degradable temporary plugging ball suitable for underground fracturing operation and preparation method thereof |
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2014
- 2014-12-18 CN CN201420813510.6U patent/CN204371293U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105001620A (en) * | 2015-07-10 | 2015-10-28 | 北京中科金腾科技有限公司 | Self-dissolving functional material for making well drilling bridge plug rubber packer and preparation method therefor |
| CN105001620B (en) * | 2015-07-10 | 2018-03-16 | 北京中科金腾科技有限公司 | It is a kind of be used to making drilling well bridging plug packing element from lysotype functional material and preparation method thereof |
| CN105038152A (en) * | 2015-08-11 | 2015-11-11 | 苏州固韧纳米材料技术有限公司 | Density-adjustable hypobaric fracturing ball for fracturing oil-gas well and preparation method thereof |
| CN105134155A (en) * | 2015-08-11 | 2015-12-09 | 苏州固韧纳米材料技术有限公司 | Fracturing ball of double-layer structure used for fracturing oil and gas well and preparation method thereof |
| CN105134155B (en) * | 2015-08-11 | 2018-01-12 | 苏州固韧纳米材料技术有限公司 | Double-decker well fracturing pressure break ball and preparation method thereof |
| CN112443294A (en) * | 2020-10-27 | 2021-03-05 | 百勤能源科技（惠州）有限公司 | High leakproofness medicine core soluble ball |
| CN113773823A (en) * | 2021-07-29 | 2021-12-10 | 内蒙古浦景聚合材料科技有限公司 | Degradable temporary plugging ball suitable for underground fracturing operation and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170525 Address after: Zheng Fu Zhuang village 102607 Beijing city Daxing District anding town north 800 meters Patentee after: BEIJING ZHONGKE JINTENG TECHNOLOGY CO., LTD. Address before: 100035 Beijing city Xicheng District Banbi Street No. 6 Patentee before: Xi Junjie |
|
| 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: 20150603 Termination date: 20181218 |