CN201125713Y - Physical cleaner for oilfield water injection - Google Patents
Physical cleaner for oilfield water injection Download PDFInfo
- Publication number
- CN201125713Y CN201125713Y CNU2007201698001U CN200720169800U CN201125713Y CN 201125713 Y CN201125713 Y CN 201125713Y CN U2007201698001 U CNU2007201698001 U CN U2007201698001U CN 200720169800 U CN200720169800 U CN 200720169800U CN 201125713 Y CN201125713 Y CN 201125713Y
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- tank body
- steel mesh
- oil
- stuffing
- scale
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Abstract
The utility model relates to a physical scale-borer used for affusion in oil fields, belonging to the technical field of oil field devices. The utility model comprises a tank body,an upper steel mesh, a lower steel mesh and stuffing. The upper steel mesh is arranged on the upper part of the tank body. The lower steel mesh is arranged on the lower part of the tank body. The stuffing which is a stainless steel thin strip piles up disorderly in the center of the tank body after being curled naturally. An outlet is arranged on the upper part of the tank body. An inlet is arranged on the lower part of the tank body. A filling port and an observation port are arranged on one side of the tank body. The utility model has the advantages that the stuffing in the tank body has an extraordinarily strong heterogeneous nucleation function and the contaminant separation rate is higher than 80 percent; the work of the scale-borer doesn't need electricity and other electrical equipment and the running cost of the equipment is very low; the stuffing doesn't need to be changed or added, so the antiscaling aging problem doesn't exist and the scale-borer can keep running with high efficiency for a long time.
Description
Technical field
The utility model relates to a kind of physics descaler that is used for oil-field flooding, belongs to the oil field equipment technical field.
Background technology
For many years, it is believed that oil field extracted water (the typical oilfield recovered water is gone into the stratum through handling qualified re-injection afterwards, can keep stratum energy for the stratum water filling) fouling is inevitable.Along with deepening continuously of oil field development, the most of oil field of China has entered the high water-cut development stage.The oil well comprehensive water cut in many oil fields is more than 90%, and calcium ion, magnesium ion and carbon acid ion concentration are higher in the produced liquid in oil well simultaneously, causes the scale problems in the oil-gas gathering and transportation system to become the ubiquitous problem in each oil field.It is very harmful that the oil-gas gathering and transportation system fouling causes, and how to address this problem the major issue that has become each oil field common concern cost-effectively.
Over nearly 30 years, the oil worker has carried out big quantity research to oil field antiscaling, descaling technology both at home and abroad.The preventing fouling that generally adopt at present domestic and international oil field mainly contains chemical method antiscale and physics method antiscale two classes.Wherein the chemical method antiscale mainly is to reach the antiscale purpose by the method that adds antisludging agent, and the antiscale of physics method then is to be broken to dirt by causing certain conditioned disjunction to change external condition.It is to add antisludging agent that maximum antiscale measures is adopted at present in each oil field of China, when calcium ion, magnesium ion and carbon acid ion concentration in the produced liquid in oil well not high (being lower than saturated concentration), adopts antisludging agent can solve the scale problems of gathering system substantially; But when calcium, magnesium and carbon acid ion concentration surpass its saturated concentration, the anti-scaling action of antisludging agent will reduce greatly, and the antisludging agent addition constantly raises, thereby causes operating cost constantly to raise.Therefore, the many oil fields of China press for and seek a kind of cost-effective antiscale measure and solve serious day by day scale problems.
Studies show that the basic reason of oil-gas gathering and transportation system fouling is to contain incrustation ions such as oversaturated calcium, magnesium, carbonate in the sewage from oil-well.These ions are removed or partly remove if before sewage from oil-well enters gathering system, take measures, its concentration is dropped to below the saturated concentration, will reduce the scale velocity of gathering system greatly, be aided with the scale problems that antisludging agent can solve gathering system.
Taking measures to prevent or reducing the oil field extracted water fouling is the effective ways that ensure that production of hydrocarbons is carried out smoothly.The basic scheme that prevents fouling has two kinds usually: 1, prevent the formation of scale forming matter; 2, prevent bonding between the scale forming matter and the deposition on heating surface thereof.Based on these two kinds of thinkings, the maximum antiscaling method of Oilfield using is the chemical scale inhibition method both at home and abroad at present, has occurred the physics antiscaling method in recent years.Chemical cleaning wherein mainly is by dilution or adds the formation that antisludging agent prevents scale forming matter that physics scale removal wherein then is to be broken to dirt by causing certain conditioned disjunction to change external condition.
The shortcoming of prior art:
1, chemical scale inhibition class technology, used scale remover ubiquity corrosion oil field equipment, the negative effect of pipeline, the antiscaling effect continuation is relatively poor, and cost is higher.
2, there are technological problemses such as device fabrication in physics preventing fouling in using at the scene, can't satisfy the needs of handling big water gaging in the production reality.
Summary of the invention
The purpose of this utility model is to propose a kind of physics descaler that is used for oil-field flooding; import department at water injection booster pump increases descaler; remove fouling component in the water filling with method for crystallising; prevent water filling fouling and influence water injection rate in the waterline course of conveying of oil field; to purify injection water quality, protection oil field waterline.
The physics descaler that is used for oil-field flooding that the utility model proposes comprises tank body, top steel mesh, bottom steel mesh and filler; Described top steel mesh places tank body top, and the bottom steel mesh places the tank body bottom.Described filler is: length is of a size of the stainless steel strip of 10～1000mm * 1.5mm * 0.2mm, the unordered tank body middle part that is deposited in, the back of curling naturally.The top of tank body is provided with delivery port, and the tank body bottom is provided with water inlet, and a side of tank body is provided with feeding port and peep hole.
A kind of physics descaler that is used for oil-field flooding that the utility model proposes, its advantage is:
1, physics descaler of the present utility model, filler in the tank body has characteristics such as surface area is big, surface free energy height, have very strong heterogeneous nucleation effect, with oversaturated scale forming matter in the water, crystallization but the dirt that do not adhere to are fast attached on the filler, descaling rate is up to more than 80%.
2, the work of this descaler need not electric energy and other electric equipment, so work safety, reliable, convenient, does not have maintenance workload, only needs regularly the inlet outlet pressure differential by peep hole monitoring descaler, and safeguarding normal operation, so equipment running cost is very low.
3, the filler in the descaler after operation a period of time, regularly washes filler by reverse water inlet, with the operate as normal of maintenance filler, but need not to change or increase filler, does not therefore have antiscale timeliness problem, can keep efficient operation for a long time.
Description of drawings
Fig. 1 is the structural representation of the physics descaler that is used for oil-field flooding that the utility model proposes.
Among Fig. 1, the 1st, top steel mesh, the 2nd, delivery port, the 3rd, water inlet, the 4th, bottom steel mesh, the 5th, feeding port, the 6th, peep hole, the 7th, tank body, the 8th, filler.
The specific embodiment
The physics descaler that is used for oil-field flooding that the utility model proposes, its structure comprise tank body 7, top steel mesh 1, bottom steel mesh 4 and filler 8 as shown in Figure 1.Top steel mesh 1 places the top of tank body 7, and bottom steel mesh 4 places the bottom of tank body 7.Filler 8 wherein is: length is of a size of the stainless steel strip of 10～100mm * 1.5mm * 0.1mm, the unordered tank body middle part that is deposited in, the back of curling naturally.The top of tank body is provided with delivery port 2, and the tank body bottom is provided with water inlet 3, and a side of tank body is provided with feeding port 5 and peep hole 6.
Filler in the above-mentioned physics descaler can not push tension when throwing in, should leave suitable space between the stainless steel coil.Top wherein, bottom steel mesh, its effect are to make filler remain on the middle part of descaler and can not fall.
The course of work of this physics descaler is:
The oil-field flooding that need handle enters in the cavity of tank body bottom from the water inlet 3 of descaler bottom, and constantly upwards raise, packing area by the tank body middle part, because the effect of filler, make oversaturated incrustation ions such as calcium ion, magnesium ion and carbanion in the water filling fast attached on the filler, treated qualified reuse water filling is flowed out from the delivery port 2 on tank body top.After operation a period of time, can oppositely intake, the fouling on the filler is rinsed out, and external with the water outlet drain tank.
The specific design parameter of an embodiment of the present utility model is as shown in the table:
| Model | Treating capacity m 3/ day | The high m of tank body | Tank diameter m | Filler stack height m | Pressure-bearing MPA |
| FG-6000 | 6000 | 4.5 | 1.3 | 3.5 | 1.6 |
The physics descaler of the utility model design, can be installed on well mouth of oil well, block station outlet, water-injection station hello the exit of pump pipeline, oversaturated incrustation ions such as calcium ion, magnesium ion and carbanion are crystallized out before entering pipeline, thereby reduce the concentration of incrustation ion in the liquid stream, prevent that collection is defeated, flood pattern produces fouling.In addition, the physics descaler can also reduce the content of impurities in the liquid stream, the nucleus of crystal of dirt in the minimizing system, thus further reach the purpose of relieving system fouling.
Claims (1)
1. a physics descaler that is used for oil-field flooding is characterized in that this descaler comprises tank body, top steel mesh, bottom steel mesh and filler; Described top steel mesh places tank body top, the bottom steel mesh places the tank body bottom, described filler is: length is of a size of the stainless steel strip of 10～1000mm * 1.5mm * 0.2mm, naturally curling, the back is unordered to be deposited in the middle part of the tank body, the top of tank body is provided with delivery port, the tank body bottom is provided with water inlet, and a side of tank body is provided with feeding port and peep hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201698001U CN201125713Y (en) | 2007-07-20 | 2007-07-20 | Physical cleaner for oilfield water injection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201698001U CN201125713Y (en) | 2007-07-20 | 2007-07-20 | Physical cleaner for oilfield water injection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201125713Y true CN201125713Y (en) | 2008-10-01 |
Family
ID=39999184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201698001U Expired - Lifetime CN201125713Y (en) | 2007-07-20 | 2007-07-20 | Physical cleaner for oilfield water injection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201125713Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104370378A (en) * | 2013-08-15 | 2015-02-25 | 中国石油天然气股份有限公司 | Method and device for fixed-point calcium scale removal of oilfield injection water |
| CN111335845A (en) * | 2020-03-26 | 2020-06-26 | 东北石油大学 | Adsorption ball for scale prevention of oil well |
-
2007
- 2007-07-20 CN CNU2007201698001U patent/CN201125713Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104370378A (en) * | 2013-08-15 | 2015-02-25 | 中国石油天然气股份有限公司 | Method and device for fixed-point calcium scale removal of oilfield injection water |
| CN104370378B (en) * | 2013-08-15 | 2016-05-11 | 中国石油天然气股份有限公司 | Method and device for fixed-point calcium scale removal of oilfield injection water |
| CN111335845A (en) * | 2020-03-26 | 2020-06-26 | 东北石油大学 | Adsorption ball for scale prevention of oil well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081001 |