CN103835680B - A kind of oil field well wax control instrument - Google Patents
A kind of oil field well wax control instrument Download PDFInfo
- Publication number
- CN103835680B CN103835680B CN201310717741.7A CN201310717741A CN103835680B CN 103835680 B CN103835680 B CN 103835680B CN 201310717741 A CN201310717741 A CN 201310717741A CN 103835680 B CN103835680 B CN 103835680B
- Authority
- CN
- China
- Prior art keywords
- active body
- trocar sheath
- control instrument
- wax control
- 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.)
- Expired - Fee Related
Links
- 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 19
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052802 copper Inorganic materials 0.000 claims abstract description 6
- 239000010949 copper Substances 0.000 claims abstract description 6
- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- 238000009827 uniform distribution Methods 0.000 claims abstract description 5
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 5
- 159000000009 barium salts Chemical class 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 4
- 159000000008 strontium salts Chemical class 0.000 claims description 4
- 238000011010 flushing procedure Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000005406 washing Methods 0.000 abstract description 5
- 238000009833 condensation Methods 0.000 abstract description 3
- 230000005494 condensation Effects 0.000 abstract description 3
- 238000000605 extraction Methods 0.000 abstract description 3
- 239000001993 wax Substances 0.000 description 46
- 239000012188 paraffin wax Substances 0.000 description 7
- 239000000126 substance Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 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
- 238000003306 harvesting Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 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
- 230000001934 delay Effects 0.000 description 1
- 238000005421 electrostatic potential Methods 0.000 description 1
- 238000005516 engineering process Methods 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
- 238000001556 precipitation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Abstract
The invention discloses a kind of down-hole wax control instrument for oil extraction, it is made up of, wherein trocar sheath and internal active body: trocar sheath diameter about 60mm, length 600mm, its lower end closed, overcoat tube wall is evenly distributed with the penetrating groove of length 300mm, width 5mm from lower surface vertically；Internal active body is the cylinder of three joint length 190mm, and its surrounding is uniform-distribution with dead slot the most radially, and total cross-sectional area of dead slot controls at the 90% of the trocar sheath tube wall groove gross area, and the red copper annulus of every two pitch cylinder active body Φ 50 × 10 × 5mm is separately.Effectively prevent and delay wax condensation on tube wall, sucker rod, thus extend the clean-out service cycle of oil well, applying of this wax control instrument is improving the pollution that conventional thermal washing/chemistry-flushing well also can be avoided while crude oil production efficiency to cause, including downhole crude exploitation and ground crude oil transportation.
Description
Technical field
The present invention relates to oil extraction instrument, it is provided that a kind of wax control instrument with wax control function.
Background technology
The crude oil in many oil fields all contains wax, constantly drops due to temperature during underground is pumped to ground at crude oil
Low, the wax being dissolved in crude oil can separate out the wax of solid-state after temperature is reduced to the drop out point (typically at about 40 DEG C) of wax, solidifying
Knot, on sucker rod and oil well tube wall, causes pipeline blockage of pumping, it is necessary to carries out " well-flushing " and could continue to remove the wax condensed
Oil pumping operation.The period of removing the wax of most wells was at one month or a wheat harvesting period, and well-flushing most common method is thermal washing or chemical clear
Wax, above method is no doubt effective, but could again after must stopping oil producing operation and experiencing the drainage period of a couple of days (generally 5 days)
Normal oil-producing operation, serious reduction crude oil production efficiency, there is the discharge of a large amount of chemical substance simultaneously, pollute environment.Raw at crude oil
The ground system (oil pipeline and crude Treatment system) produced there is also same Paraffin Removal problem.
Summary of the invention
It is an object of the invention to provide a kind of oil field well wax control instrument, use special construction and metal material to have spy
Different electro-chemical activity, the precipitation of wax and condensation in effective crude oil for inhibiting, therefore can extend oil well wax removing duty cycle, improve
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: institute
State wax control instrument to be made up of trocar sheath and internal active body, trocar sheath diameter about 60mm, length 600mm, its lower end closed, upper end
Opening part has screw thread in order to be connected with pipe joint, and trocar sheath has length 300mm, the penetrating of width 5mm to open from lower surface on wall
Groove, radially even distribution, is the passage of crude oil entering tool, and described internal active body is that the cylinder of three joint length 190mm is lived
Gonosome, its surrounding is uniform-distribution with dead slot the most radially, is the passage flowed up after crude oil enters trocar sheath, dead slot
Total cross-sectional area be about the 90% of the trocar sheath wall trench gross area, every two pitch cylinder active body external diameters × highly × thickness=Φ
The red copper annulus of 50 × 10 × 5mm is separately；The material of described trocar sheath and internal active body regards well depth and crude oil liquid when using
Composition and different: 1. when well depth≤5000m, trocar sheath is 1Cr18Ni9, inside active body be copper alloy HCu62 or HSn70-
1；2. when well depth >=5000m, trocar sheath is 0Cr17Ni12Mo2, and internal active body is copper alloy BZn15-21-1.8,3. exists
Time in crude oil liquid containing barium salt/strontium salt, trocar sheath material is 0Cr17Ni12Mo2N, and internal active body is copper alloy BZn15-
20；The composition of described trocar sheath material and impurity meet the regulation of GB [GB1220-92 [84]], described internal active body material
Composition and impurity meet the regulation of GB [GB5232-85].
Described wax control instrument is serially connected in the lower end of oil well pump in oil well when using, and can need single only use or many according to wax control
Only concatenate use.
The present invention uses the penetrating fluting of length 300mm of radially even distribution, width 5mm, three joint length 190mm
Cylinder active body, its surrounding is uniform-distribution with dead slot the most radially, is that crude oil enters flow up after trocar sheath logical
Road, total cross-sectional area of dead slot is about the 90% of the trocar sheath wall trench gross area, every two pitch cylinder active body external diameters × highly ×
The red copper annulus of thickness=Φ 50 × 10 × 5mm separately, makes crude oil fully and copper alloy contact, utilizes copper alloy and stone in crude oil
The electro-chemical activity difference of wax, changes after crude oil is in contact with it and makes the electrostatic potential of paraffin molecule in crude oil change, so that
The fine wax crystal separated out in crude oil is in scattered suspended state and flows out with crude oil liquid, it is to avoid condenses into bulk and blocks pipe
Road, effectively prevents and delays wax condensation on tube wall, sucker rod, thus extend the clean-out service cycle of oil well.This wax control work
Have applies the pollution that conventional thermal washing/chemistry-flushing well also can be avoided while improving crude oil production efficiency to cause, including down-hole
Oil extraction and ground crude oil transportation.
The wax control instrument that the present invention provides, has a following outstanding advantages:
(1) efficient: wax control result is obvious, and period of removing the wax can be made to extend to more than 6 months from a wheat harvesting period, mechanical with using
Or the paraffin removal and control method of physics compare, use wax control special alloy for oil well paraffin prevention, can significantly extend the snaking cycle, greatly
Width reduces the time stopping oil pumping operation；
(2) energy-conserving and environment-protective: be not required to any extra energy supply, entirely without discharge；
(3) easy to use: easy for installation, almost it is not required to safeguard；
(4) inexpensive long-acting: low cost of manufacture, can be with life-time service.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described in further detail.
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of internal 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 by trocar sheath 2 and internal active body 3 groups
Become, trocar sheath diameter about 60mm, length 600mm, its lower end closed, have screw thread at upper end open in order to be connected with pipe joint 1, outward
Sleeve pipe has the penetrating fluting of length 300mm, width 5mm, radially even distribution from lower surface on wall, be crude oil entering tool
Passage, described internal active body is the cylinder active body of three joint length 190mm, respectively first cylinder active body the 4, second circle
Post active body the 6, the 3rd cylinder active body 8, its surrounding is uniform-distribution with dead slot 9 the most radially, is that crude oil enters overcoat
The passage flowed up after pipe, total cross-sectional area of dead slot is about the 90% of the trocar sheath wall trench gross area, every two pitch cylinder activity
The first red copper annulus 5 of body external diameter × highly × thickness=Φ 50 × 10 × 5mm and the second red copper annulus 7 are separately；Outside described
The material of sleeve pipe and internal active body regards well depth and crude oil liquid composition when using and different: 1. when well depth≤5000m, overcoat
Pipe is 1Cr18Ni9, and internal active body is copper alloy HCu62 or HSn70-1；2., when well depth >=5000m, trocar sheath is
0Cr17Ni12Mo2, internal active body is copper alloy BZn15-21-1.8, when 3. containing barium salt/strontium salt in crude oil liquid, outward
Sleeve pipe material is 0Cr17Ni12Mo2N, and internal active body is copper alloy BZn15-20, overcoat and the composition of inner part material and miscellaneous
Matter corresponds with 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 when using, and can need single only use or 2 according to wax control
Only or many concatenations use.
The application 1 under oil well of the oil field well wax control instrument of employing said structure:
Oil well depth 1300 meters, oilwell produced fluid amount 4.9 ton day, wax content 14.5%, moisture content 66%, former employing thermal washing,
Period of removing the wax 45 days, uses wax control instrument (trocar sheath 1Cr18Ni9, internal active body HCu62) 1, and period of removing the wax extends to
258 days.
The application 2 under oil well of the oil field well wax control instrument of employing said structure:
Oil well depth about 4500 meters, oilwell produced fluid amount 8.1 ton day, moisture content 72%, paraffin content 20.1%, former employing heat
Wash down wax, hot washing period 35 days, use wax control instrument (trocar sheath 1Cr18Ni9, internal active body HSn70-1) 2, wax removal week
Phase extends to 277 days.
The application 3 under oil well of the oil field well wax control instrument of employing said structure:
Oil well depth 5100 meters, oilwell produced fluid amount 4.7 ton day, moisture content 49%, wax content 14%.
Former employing paraffin removing with chemical method, 35 days times between well-flushings, uses wax control instrument (trocar sheath 0Cr17Ni12Mo2, internal activity
Body BZn15-21-1.8) 2, period of removing the wax extends to 219 days.
The application 4 under oil well of the oil field well wax control instrument of employing said structure:
Oil well depth 4500 meters, oilwell produced fluid amount 6.6 ton day, moisture content 55%, wax content 18%. crude oil liquid has
Barium salt and strontium salt.Former employing paraffin removing with chemical method, 30 days times between well-flushings, uses wax control instrument (trocar sheath 0Cr17Ni12Mo2N, inside
Active body BZn15-20) 2 concatenations, period of removing the wax extends to 209 days.
Claims (2)
1. an oil field well wax control instrument, it is characterised in that: described wax control instrument is made up of, outward trocar sheath and internal active body
Casing diameter about 60mm, length 600mm, its lower end closed, have screw thread at upper end open in order to be connected with pipe joint, trocar sheath from
The penetrating fluting having length 300mm, width 5mm on wall, radially even distribution are played in lower surface, are the logical of crude oil entering tool
Road, described internal active body is the cylinder active body of three joint length 190mm, and the respectively first cylinder active body, the second cylinder are lived
Gonosome, the 3rd cylinder active body, its surrounding is uniform-distribution with dead slot the most radially, be crude oil enter trocar sheath backward on
The passage of flowing, total cross-sectional area of dead slot is about the 90% of the trocar sheath wall trench gross area, every two pitch cylinder active body external diameters
The red copper annulus of × highly × thickness=Φ 50 × 10 × 5mm is separately；The material of described trocar sheath and internal active body regards and uses
Shi Jingshen and crude oil liquid composition and different: 1. when well depth≤5000m, trocar sheath is 1Cr18Ni9, inside active body be copper
Alloy HCu62 or HSn70-1；2. when well depth >=5000m, trocar sheath is 0Cr17Ni12Mo2, and internal active body is copper alloy
BZn15-21-1.8；When 3. containing barium salt/strontium salt in crude oil liquid, trocar sheath material is 0Cr17Ni12Mo2N, internal activity
Body is copper alloy BZn15-20；The composition of described trocar sheath material and impurity meet the regulation of GB [GB1220-92 [84]], institute
State the composition of internal active body material and impurity meets the regulation of GB [GB5232-85].
Described oil field well wax control instrument the most as claimed in claim 1, it is characterised in that concatenation when described wax control instrument uses
The lower end of oil well pump in oil well, needs single only use or many concatenations to use 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 CN103835680A (en) | 2014-06-04 |
| CN103835680B true CN103835680B (en) | 2016-11-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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 |
|
| 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 |
|
| 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. |
|
| 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 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161130 |