CN202989049U - Propping agent sphere for oil field fracturing - Google Patents
Propping agent sphere for oil field fracturing Download PDFInfo
- Publication number
- CN202989049U CN202989049U CN 201220546460 CN201220546460U CN202989049U CN 202989049 U CN202989049 U CN 202989049U CN 201220546460 CN201220546460 CN 201220546460 CN 201220546460 U CN201220546460 U CN 201220546460U CN 202989049 U CN202989049 U CN 202989049U
- Authority
- CN
- China
- Prior art keywords
- propping agent
- oil field
- kubuqi
- wrapping layer
- sphere
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 23
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000004576 sand Substances 0.000 claims abstract description 9
- 239000003822 epoxy resin Substances 0.000 claims abstract description 5
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 5
- 239000002245 particle Substances 0.000 claims abstract description 4
- 239000006004 Quartz sand Substances 0.000 claims description 21
- 239000004744 fabric Substances 0.000 claims description 16
- 239000011247 coating layer Substances 0.000 claims description 15
- 206010010214 Compression fracture Diseases 0.000 claims description 10
- 239000011159 matrix material Substances 0.000 claims description 6
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000010453 quartz Substances 0.000 abstract 5
- 239000000758 substrate Substances 0.000 abstract 4
- 206010047700 Vomiting Diseases 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
- 239000002861 polymer material Substances 0.000 abstract 1
- 229920005749 polyurethane resin Polymers 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 5
- 229920001600 hydrophobic polymer Polymers 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 206010017076 Fracture Diseases 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229920000768 polyamine Polymers 0.000 description 2
- 229920002050 silicone resin Polymers 0.000 description 2
- 208000010392 Bone Fractures Diseases 0.000 description 1
- 208000003044 Closed Fractures Diseases 0.000 description 1
- 125000002723 alicyclic group Chemical group 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Images
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
The utility model discloses a propping agent sphere for oil field fracturing. The propping agent sphere is characterized by being composed of a Kubuqi quartz substrate and a wrapping layer. The Kubuqi quartz substrate is in a circular ball shape or an oval ball shape. The wrapping layer is evenly attached to the outer surface of the Kubuqi quartz substrate in an adhesion mode. A circular-ball-shaped or oval-ball-shaped sphere is formed. The particle diameter of Kubuqi quartz is 0.106mm-3.35mm. The thickness of the wrapping layer is 1-5mm. The weight of the wrapping layer is 1-10% of the weight of the substrate. The wrapping layer is formed by solidifying bisphenol A type epoxy resin or polyurethane resin. The propping agent sphere is formed by wrapping a layer of high polymer material on the surface of a quartz frame, has the advantages of being small in relative density, high in strength, low in breaking rate, good in roundness, sphericity and chemical inertness, capable of solidifying at lower temperature under a well, and the like, can be widely used in oil field fracturing and sand preventing technology, is favorable to improving sand ratios and reducing utilization quantity of fracturing fluid, effectively prevents propping agents from being vomited, reduces embedding of the propping agents, improves crack guide ability, and prolongs service life of fracturing.
Description
Technical field
The utility model relates to a kind of propping agent spheroid for oil field compression fracture.
Background technology
When petroleum fracturing propping agent is mainly used in oil, Sweet natural gas deep mining, particularly well depth is at the oil more than 2000 meters, the material that must use when air to open is adopted, proppant in high intensity is filled in the formation fractures in hyposmosis mineral deposit, carry out high closed fracture treatment, with supporting crack not stress discharge and close and, allow oil, gas collect from the passage of crack, thereby the high flow conductivity that keeps oil, gas, increase oil, gas output, extend oil, the gas well length of service, improve oil recovery, gas economic benefit.
At present both at home and abroad fracturing technology propping agent used is mainly take quartz sand and haydite as main, but quartz sand is propping agent commonly used at present, and relative density is about 2.5.Because it is inexpensive, all kinds of stratum of centering shallow well use quartz sand as propping agent, certain success ratio to be arranged.And quartz sand insufficient strength high (the broken pressure of beginning is about 28MPa), therefore can not be used for deep well fracturing.In the situation that locking pressure is higher, sand grains will be broken, produces a large amount of fragments and finely powdered sand.These fine silts move and stop up flow passage in the crack, thereby greatly reduce the flow conductivity in crack.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of propping agent spheroid for oil field compression fracture, has solved the problems referred to above.
Technical problem to be solved in the utility model is achieved through the following technical solutions:
A kind of propping agent spheroid for oil field compression fracture is characterized in that: be comprised of its quartz sand matrix of storehouse cloth and coating layer; Described storehouse its quartz sand of cloth is spheroidal or elliposoidal, and described coating layer evenly sticks to its quartz sand outside surface of storehouse cloth, forms the spheroid of spheroidal or elliposoidal.
The sand grains particle diameter of described storehouse its quartz sand of cloth is 0.106mm-3.35mm.
Described coating thickness is 1-5mm.
Described coating layer weight is the 1-10% of matrix weight.
Described coating layer is that bisphenol A type epoxy resin or curable urethane resin form.
The utility model coats one deck macromolecular material and consists of on quartz sand aggregate surface by high-tech means, have that relative density is little, the high and low percentage of damage of intensity, circularity, a sphericity and unreactiveness is good and can be in characteristics such as down-hole low-temperature concretions.Can be widely used in oil field compression fracture and sand-preventing process, be beneficial to and carry high sand ratio, reduce the fracturing liquid consumption, prevent from effectively that propping agent from returning to tell phenomenon, alleviate proppant embedment, improve fracture flow capacity, extend improvement.Be conducive to improve oil yield, reduce aquifer yield, be significant to solving the low-permeability oilfield exploitation.
Description of drawings
Fig. 1 is the utility model globosity schematic diagram
Fig. 2 is the utility model elliposoidal structural representation
In figure, 1. its quartz sand matrix of storehouse cloth, 2. coating layer
Embodiment
As shown in Fig. 1-2, a kind of propping agent spheroid for oil field compression fracture is characterized in that: be comprised of its quartz sand matrix of storehouse cloth and coating layer; Described storehouse its quartz sand of cloth is spheroidal or elliposoidal, and described coating layer evenly sticks to its quartz sand outside surface of storehouse cloth, forms the spheroid of spheroidal or elliposoidal.
The sand grains particle diameter of described storehouse its quartz sand of cloth is 0.106mm-3.35mm.
Described coating thickness is 1-5mm.
Described coating layer weight is the 1-10% of matrix weight.
Described coating layer is that bisphenol A type epoxy resin or curable urethane resin form.Adopting solidifying agent during curing is aliphatic polyamine or alicyclic polyamine class solidifying agent, and hardener dose accounts for the 10-50wt% of coating layer.Can also add hydrophobic polymer in described coating layer, described hydrophobic polymer is silicone resin, and silicone resin weight accounts for the 1-10% of coating layer weight.
The preparation method of described propping agent spheroid is comprised of following steps:
(a) cloth its quartz sand in storehouse is heated to 200-300 ℃, pours in sand mill;
(b) add hydrophobic polymer when 180-200 ℃ of its quartz sand of storehouse cloth, stir 30-60s;
(c) add bisphenol A type epoxy resin or urethane resin, stir 60-100s;
(d) add solidifying agent to stir 100-180s, cause cloth its quartz sand in storehouse to disperse fully;
(e) cooling, sieve, pack.
Claims (4)
1. a propping agent spheroid that is used for oil field compression fracture, is characterized in that: be comprised of its quartz sand matrix of storehouse cloth and coating layer; Described storehouse its quartz sand of cloth is spheroidal or elliposoidal, and described coating layer evenly sticks to its quartz sand outside surface of storehouse cloth, forms the spheroid of spheroidal or elliposoidal.
2. the propping agent spheroid for oil field compression fracture as claimed in claim 1, it is characterized in that: the sand grains particle diameter of described storehouse its quartz sand of cloth is 0.106mm-3.35mm.
3. the propping agent spheroid for oil field compression fracture as claimed in claim 1 or 2, it is characterized in that: described coating thickness is 1-5mm.
4. the propping agent spheroid for oil field compression fracture as claimed in claim 1, it is characterized in that: described coating layer is that bisphenol A type epoxy resin or curable urethane resin form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220546460 CN202989049U (en) | 2012-10-24 | 2012-10-24 | Propping agent sphere for oil field fracturing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220546460 CN202989049U (en) | 2012-10-24 | 2012-10-24 | Propping agent sphere for oil field fracturing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202989049U true CN202989049U (en) | 2013-06-12 |
Family
ID=48560246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220546460 Expired - Fee Related CN202989049U (en) | 2012-10-24 | 2012-10-24 | Propping agent sphere for oil field fracturing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202989049U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109233797A (en) * | 2018-10-09 | 2019-01-18 | 西南大学 | Overlay film fracturing propping agents based on polyurethane and preparation method thereof |
| CN115029124A (en) * | 2022-07-07 | 2022-09-09 | 秦皇岛贝特化工科技有限公司 | Fracturing water plugging resin sand and preparation method thereof |
-
2012
- 2012-10-24 CN CN 201220546460 patent/CN202989049U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109233797A (en) * | 2018-10-09 | 2019-01-18 | 西南大学 | Overlay film fracturing propping agents based on polyurethane and preparation method thereof |
| CN115029124A (en) * | 2022-07-07 | 2022-09-09 | 秦皇岛贝特化工科技有限公司 | Fracturing water plugging resin sand and preparation method thereof |
| CN115029124B (en) * | 2022-07-07 | 2023-10-20 | 秦皇岛贝特化工科技有限公司 | Fracturing water shutoff resin sand and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20130612 Termination date: 20161024 |