CN103835680A - Underground paraffin control tool for oil field - Google Patents
Underground paraffin control tool for oil field Download PDFInfo
- Publication number
- CN103835680A CN103835680A CN201310717741.7A CN201310717741A CN103835680A CN 103835680 A CN103835680 A CN 103835680A CN 201310717741 A CN201310717741 A CN 201310717741A CN 103835680 A CN103835680 A CN 103835680A
- Authority
- CN
- China
- Prior art keywords
- active body
- outer tube
- well
- oil
- crude oil
- 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.)
- Granted
Links
- 239000012188 paraffin wax Substances 0.000 title abstract description 13
- 239000010779 crude oil Substances 0.000 claims abstract description 30
- 239000003129 oil well Substances 0.000 claims abstract description 24
- 239000003921 oil Substances 0.000 claims abstract description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 159000000009 barium salts Chemical class 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 159000000008 strontium salts Chemical class 0.000 claims description 4
- 238000009827 uniform distribution Methods 0.000 claims description 4
- 238000011010 flushing procedure Methods 0.000 abstract description 8
- 239000000126 substance Substances 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 1
- 239000001993 wax Substances 0.000 description 44
- 238000000034 method Methods 0.000 description 7
- 239000012530 fluid Substances 0.000 description 4
- 238000005086 pumping Methods 0.000 description 3
- 206010016825 Flushing Diseases 0.000 description 2
- 241000209140 Triticum Species 0.000 description 2
- 235000021307 Triticum Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003306 harvesting Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000192 social effect Effects 0.000 description 1
Images
Abstract
The invention discloses an underground paraffin control tool for an oil field. The tool is composed of an outer sleeve and an internal active body, wherein the diameter of the outer sleeve is about 60 mm, the length of the outer sleeve is about 600 mm, the lower end of the outer sleeve is closed, and through grooves which are 300 mm long and 5 mm wide are evenly distributed on the wall of the outer sleeve in the axial direction from the lower end face; three cylinders which are 190 mm long form the internal active body, empty grooves are evenly distributed in the periphery of the internal active body in the radial direction in the radiation shape, the total cross section area of each empty groove is controlled to be within 90 percent of the total area of the wall of the outer sleeve, and every two adjacent cylinders forming the active body are separated through a red copper ring with Phi being 50 mm*10 mm*5 mm. It is effectively prevented and slowed that paraffin condenses on the pipe wall and a sucker rod, and therefore the well flushing period of an oil well can be effectively prolonged. Due to the application of the paraffin control tool, while the production efficiency of crude oil is improved, pollution caused by conventional heat well flushing/chemical well flushing can also be avoided, and remarkable economic and social significance makes the tool have wide application prospects in the aspects of underground exploration and ground transportation of crude oil.
Description
Technical field
The present invention relates to oil extraction instrument, a kind of wax control instrument with wax control function is provided.
Background technology
In the crude oil in many oil fields, all contain wax, crude oil from the underground process that is pumped to ground because temperature constantly reduces, after being dissolved in wax in crude oil is reduced to wax drop out point (generally 40 DEG C of left and right) in temperature, can separate out solid-state wax, condense on sucker rod and oil well tube wall, cause the pipeline blockage of pumping, must carry out " well-flushing " and could continue oil pumping operation to remove the wax condensing.The period of removing the wax of most wells was at one month or a wheat harvesting period, the most frequently used method of well-flushing is that heat is washed or paraffin removing with chemical method, above method is no doubt effective, but must stop oil producing operation and experience a couple of days normal produce oil operation again after the drainage period of (being generally 5 days), the serious crude oil production efficiency that reduces, there is the discharge of a large amount of chemical substances, contaminated environment simultaneously.In the ground system (oil pipeline and crude Treatment system) of crude oil production, also there is same clear wax control problem.
Summary of the invention
The object of the present invention is to provide a kind of oil field well wax control instrument, adopt special construction and metal material to there is special electro-chemical activity, effectively the separating out and condense of wax in crude oil for inhibiting, therefore can extend oil well paraffin removal duty cycle, improves oil well production efficiency.
For achieving the above object, the technical solution used in the present invention is: this one oil field well wax control instrument, wherein: described wax control instrument is made up of outer tube and inner active body, outer tube diameter 60mm, length 600mm, its lower end closed, there is screw thread at upper end open place in order to be connected with union, outer tube wall from lower surface has length 300mm, the penetrating fluting of width 5mm, radially be uniformly distributed, it is the passage of crude oil entering tool, described inner active body is the cylinder active body of three joint length 190mm, its surrounding is radially uniform-distribution with dead slot radially, that crude oil enters the backward mobile passage of outer tube, total cross-sectional area of dead slot is about 90% of the overcoat tube wall groove gross area, the red copper annulus of every two pitch cylinders external diameter for active body × highly × thickness=Φ 50 × 10 × 5mm separately, when the material of described outer tube and inner active body is looked use, well depth and crude oil liquid form and difference: 1., in the time of well depth≤5000m, outer tube is 1Cr18Ni9, and inner active body is copper alloy HCu62 or HSn70-1, 2. in the time of well depth >=5000m, outer tube is 0Cr17Ni12Mo2, and inner active body is copper alloy BZn15-21-1.8, and while 3. containing barium salt/strontium salt in crude oil liquid, outer tube material is 0Cr17Ni12Mo2N, and inner active body is copper alloy BZn15-20.
Described wax control instrument is serially connected in the lower end of oil well pump in oil well while use, can need to singly only use or 2 or many serial connection uses according to wax control.
The present invention adopts radially equally distributed length 300mm, the penetrating fluting of width 5mm, the cylinder active body of three joint length 190mm, its surrounding is radially uniform-distribution with dead slot radially, that crude oil enters the backward mobile passage of outer tube, total cross-sectional area of dead slot is about 90% of the overcoat tube wall groove gross area, the red copper annulus of every two pitch cylinders external diameter for active body × highly × thickness=Φ 50 × 10 × 5mm separately, crude oil is fully contacted with copper alloy, utilize the electro-chemical activity difference of paraffin in copper alloy and crude oil, changing after crude oil is in contact with it changes the rest potential of paraffin molecule in crude oil, thereby the fine wax crystal of separating out in crude oil is flowed out with crude oil liquid in the suspended state disperseing, avoid condensing into bulk and blocking pipeline, effectively prevent and delay wax at tube wall, condensing on sucker rod, thereby extend the clean-out service cycle of oil well.Being applied in of this wax control instrument also can be avoided the wash/pollution that chemical well-flushing causes of conventional heat when improving crude oil production efficiency, significant economy and social effect will make it have wide application prospect, comprise downhole crude exploitation and ground crude oil transportation.
Wax control instrument provided by the invention, has following outstanding advantages:
(1) efficient: wax control result is obvious, can make period of removing the wax extend to more than 6 months from a wheat harvesting period, compared with using paraffin removal and control method machinery or physics, use wax control special alloy for oil well paraffin prevention, can significantly extend the snaking cycle, significantly reduce the time of the operation that stops pumping;
(2) energy-conserving and environment-protective: do not need any extra energy supply, do not discharge completely;
(3) easy to use: easy for installation, need hardly to safeguard;
(4) inexpensive long-acting: low cost of manufacture, can be used for a long time.
Brief description of the drawings
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of inner active body.
Detailed description of the invention
A kind of oil field well wax control instrument as shown in Figure 1, described wax control instrument is made up of outer tube 2 and inner active body 3, outer tube diameter 60mm, length 600mm, its lower end closed, there is screw thread at upper end open place in order to be connected with union 1, outer tube wall from lower surface has length 300mm, the penetrating fluting of width 5mm, radially be uniformly distributed, it is the passage of crude oil entering tool, described inner active body is the cylinder active body of three joint length 190mm, be respectively the first cylinder active body 4, the second cylinder active body 6, three cylindrical active body 8, its surrounding is radially uniform-distribution with dead slot 9 radially, that crude oil enters the backward mobile passage of outer tube, total cross-sectional area of dead slot is about 90% of the overcoat tube wall groove gross area, the first red copper annulus 5 of every two pitch cylinders external diameter for active body × highly × thickness=Φ 50 × 10 × 5mm and the second red copper annulus 7 are separately, when the material of described outer tube and inner active body is looked use, well depth and crude oil liquid form and difference: 1., in the time of well depth≤5000m, outer tube is 1Cr18Ni9, and inner active body is copper alloy HCu62 or HSn70-1, 2. in the time of well depth >=5000m, outer tube is 0Cr17Ni12Mo2, inner active body is copper alloy BZn15-21-1.8,3. while containing barium salt/strontium salt in crude oil liquid, outer tube material is 0Cr17Ni12Mo2N, inner active body is copper alloy BZn15-20, and the composition of overcoat and inner part material and impurity meet respectively GB [GB1220-92[84]] and the regulation of [GB5232-85].
Described wax control instrument is serially connected in the lower end of oil well pump in oil well while use, can need to singly only use or 2 or many serial connection uses according to wax control.
The application 1 of the oil field well wax control instrument of employing said structure under oil well:
1300 meters of oil well depths, 4.9 tons/day of oilwell produced fluid amounts, wax content 14.5%, moisture content 66%, former employing heat is washed, and period of removing the wax 45 days uses wax control instrument (outer tube 1Cr18Ni9, inner active body HCu62) 1, and period of removing the wax extends to 258 days.
The application 2 of the oil field well wax control instrument of employing said structure under oil well:
Approximately 4500 meters of oil well depths, 8.1 tons/day of oilwell produced fluid amounts, moisture content 72%, paraffin content 20.1%, former employing hot-washing wax remover, hot washing period 35 days, uses wax control instrument (outer tube 1Cr18Ni9, inner active body HSn70-1) 2, and period of removing the wax extends to 277 days.
The application 3 of the oil field well wax control instrument of employing said structure under oil well:
5100 meters of oil well depths, 4.7 tons/day of oilwell produced fluid amounts, moisture content 49%, wax content 14%.
Former employing paraffin removing with chemical method, 35 days times between well-flushings, adopts wax control instrument (outer tube 0Cr17Ni12Mo2, inner active body BZn15-21-1.8) 2, and period of removing the wax extends to 219 days.
The application 4 of the oil field well wax control instrument of employing said structure under oil well:
4500 meters of oil well depths, 6.6 tons/day of oilwell produced fluid amounts, moisture content 55%, has barium salt and strontium salt in wax content 18%. crude oil liquid.Former employing paraffin removing with chemical method, 30 days times between well-flushings, adopts 2 serial connections of wax control instrument (outer tube 0Cr17Ni12Mo2N, inner active body BZn15-20), and period of removing the wax extends to 209 days.
Claims (2)
1. an oil field well wax control instrument, it is characterized in that: described wax control instrument is made up of outer tube and inner active body, outer tube diameter 60mm, length 600mm, its lower end closed, there is screw thread at upper end open place in order to be connected with union, outer tube wall from lower surface has length 300mm, the penetrating fluting of width 5mm, radially be uniformly distributed, it is the passage of crude oil entering tool, described inner active body is the cylinder active body of three joint length 190mm, its surrounding is radially uniform-distribution with dead slot radially, that crude oil enters the backward mobile passage of outer tube, total cross-sectional area of dead slot is about 90% of the overcoat tube wall groove gross area, the red copper annulus of every two pitch cylinders external diameter for active body × highly × thickness=Φ 50 × 10 × 5mm separately, when the material of described outer tube and inner active body is looked use, well depth and crude oil liquid form and difference: 1., in the time of well depth≤5000m, outer tube is 1Cr18Ni9, and inner active body is copper alloy HCu62 or HSn70-1, 2. in the time of well depth >=5000m, outer tube is 0Cr17Ni12Mo2, and inner active body is copper alloy BZn15-21-1.8, 3. while containing barium salt/strontium salt in crude oil liquid, outer tube material is 0Cr17Ni12Mo2N, and inner active body is copper alloy BZn15-20.
2. described oil field well wax control instrument as claimed in claim 1, is characterized in that described wax control instrument is serially connected in the lower end of oil well pump in oil well while use, can need to singly only use or 2 or many serial connection uses according to wax control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310717741.7A CN103835680B (en) | 2013-12-24 | A kind of oil field well wax control instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310717741.7A CN103835680B (en) | 2013-12-24 | A kind of oil field well wax control instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103835680A true CN103835680A (en) | 2014-06-04 |
| CN103835680B CN103835680B (en) | 2016-11-30 |
Family
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107083937A (en) * | 2017-06-14 | 2017-08-22 | 巩义市泛锐熠辉复合材料有限公司 | A kind of anti-wax anti-scaling anti-corrosion instrument |
| CN108316889A (en) * | 2018-03-12 | 2018-07-24 | 武汉艾力特流体装备有限公司 | Oil exploitation conveyance conduit self-cleaning wax-proof anti-scaling device and self-cleaning method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5485883A (en) * | 1995-04-17 | 1996-01-23 | Universal Enrivonmental Technologies, Inc. | Method and apparatus to enhance the recovery of crude oil |
| CN101126307A (en) * | 2007-09-28 | 2008-02-20 | 王新虎 | Wax-proof anti-scaling equipment and mating oil pipe short section |
| RU2358093C1 (en) * | 2007-12-03 | 2009-06-10 | Государственное образовательное учреждение высшего профессионального образования "Санкт-Петербургский государственный горный институт имени Г.В. Плеханова (технический университет)" | Method of processing bottomhole zone of well |
| CN201902197U (en) * | 2010-12-03 | 2011-07-20 | 张辉 | Novel oil well wax-proof device |
| CN203669826U (en) * | 2013-12-24 | 2014-06-25 | 张辉 | Oilfield underground paraffin prevention tool |
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5485883A (en) * | 1995-04-17 | 1996-01-23 | Universal Enrivonmental Technologies, Inc. | Method and apparatus to enhance the recovery of crude oil |
| CN101126307A (en) * | 2007-09-28 | 2008-02-20 | 王新虎 | Wax-proof anti-scaling equipment and mating oil pipe short section |
| RU2358093C1 (en) * | 2007-12-03 | 2009-06-10 | Государственное образовательное учреждение высшего профессионального образования "Санкт-Петербургский государственный горный институт имени Г.В. Плеханова (технический университет)" | Method of processing bottomhole zone of well |
| CN201902197U (en) * | 2010-12-03 | 2011-07-20 | 张辉 | Novel oil well wax-proof device |
| CN203669826U (en) * | 2013-12-24 | 2014-06-25 | 张辉 | Oilfield underground paraffin prevention tool |
Non-Patent Citations (2)
| Title |
|---|
| 王可平: "《电化学防垢防蜡防腐机理及实验研究》", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
| 莫言起等: "《防蜡、防盐、防垢及防腐技术在文东油田气举井的应用》", 《内蒙古石油化工》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107083937A (en) * | 2017-06-14 | 2017-08-22 | 巩义市泛锐熠辉复合材料有限公司 | A kind of anti-wax anti-scaling anti-corrosion instrument |
| CN108316889A (en) * | 2018-03-12 | 2018-07-24 | 武汉艾力特流体装备有限公司 | Oil exploitation conveyance conduit self-cleaning wax-proof anti-scaling device and self-cleaning method |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20151118 Address after: 102200, room 18, Fukang Road, Changping District science and Technology Park, Beijing, 508 Applicant after: BEIJING SHENGCHANG CENTURY PETROLEUM TECHNOLOGY Co.,Ltd. Address before: 457000, No. 3, unit 67, 1 building, Shengli District, Shengli East Road, Hualong District, Henan, Puyang Applicant before: Zhang Hui |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB02 | Change of applicant information |
Inventor after: Liang Hua Inventor after: Zhang Hui Inventor after: Zhou Genxian Inventor after: Song Shunjie Inventor before: Zhang Hui Inventor before: Zhou Genxian Inventor before: Song Shunjie |
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| COR | Change of bibliographic data | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181228 Address after: Unit 1, Building 67, Tianyun District, Shengli East Road, Hualong District, Puyang City, Henan Province Patentee after: Zhang Hui Address before: Room 508, 18 Fukang Road, Changping District Science Park, Beijing 102200 Patentee before: BEIJING SHENGCHANG CENTURY PETROLEUM TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210107 Address after: 457000 west of 50m north of the intersection of Changqing Road and Shengli Road, Puyang City, Henan Province Patentee after: Puyang Hengchang Industrial Co.,Ltd. Patentee after: Zhang Hui Address before: Unit 1, Building 67, Tianyun District, Shengli East Road, Hualong District, Puyang City, Henan Province Patentee before: Zhang Hui |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161130 |
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| CF01 | Termination of patent right due to non-payment of annual fee |