CN102558469A - Cross-linking agent for profile control and oil displacement for high-temperature oil reservoir, as well as preparation method and application for same - Google Patents
Cross-linking agent for profile control and oil displacement for high-temperature oil reservoir, as well as preparation method and application for same Download PDFInfo
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- CN102558469A CN102558469A CN2011103347208A CN201110334720A CN102558469A CN 102558469 A CN102558469 A CN 102558469A CN 2011103347208 A CN2011103347208 A CN 2011103347208A CN 201110334720 A CN201110334720 A CN 201110334720A CN 102558469 A CN102558469 A CN 102558469A
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Abstract
The invention discloses a cross-linking agent (i.e., polyhydroxy phenolic high-temperature prepolymer organic cross-linking agent) for deep profile control and oil displacement for a high-temperature oil reservoir, wherein the cross-linking agent disclosed by the invention is formed by using phenol, hexamethylenetetramine, formaldehyde and a curing agent as raw materials, and performing polymerization reaction under the action of a catalyst. The cross-linking agent is mainly researched and developed aiming at a high-temperature oil reservoir (at 70-125 DEG C), and is mainly used for the technologies of deep profile control and deep fluid diversion. In a high-temperature condition, the cross-linking agent is high in the activity of reaction with polyacrylamide, low in use concentration, non-toxic and odourless, harmless for environment and workers, and easy in operation. The cross-linking agent is used in deep profile control and oil displacement construction, and is widely applied in Turpan-Hami oilfield and Jilin oilfield, and the input-output ratio achieves 1: 3.6. Via continuing research in the aspects of improving understanding for oil reservoir, optimizing the working procedures of construction and pump injection program, and controlling injection radius, the cross-linking agent can be widely applied in the aspect of high-temperature oil reservoir.
Description
Technical field
The present invention relates to a kind of oilfield chemistry agent, particularly a kind of high temperature modification linking agent and its production and application, the oilfield exploitation field belonged to.
Background technology
In recent years, the deep transfer drive technical development that is applied to middle low-temperature reservoir (below 70 ℃) gets very fast, and has obtained widespread use in the oil field.But the dark conditioning technology development that is applied to high-temperature oil reservoir (more than 70 ℃) is relatively slow, and this mainly is because high temperature polymer and high-temperature cross-linking agent production development are slower, has therefore restricted the development of the deep transfer drive technology of high-temperature oil reservoir (more than 70 ℃).At present, the bigger phenolic crosslinkers and the lower surrogate of some toxicity of the toxicity fifties still used in many oil fields.Although phenolic system can be used for the high-temperature oil reservoir environment,, environment and operator are all had a strong impact on because the chemical agent volatility is serious; And response capacity is low, and using dosage is big; National environmental protection department clearly forbids injecting water use phenolic aldehyde material; Therefore, need a kind of substitute products of non-toxic inexpensive, can form good thermal stability with multipolymer, visco-elasticity meets the requirement that necessarily required gelinite satisfies high-temperature oil reservoir profile control transfer drive.
China's most of Oilfield using waterflooding pattern, along with the oil-field development exploitation get in high water-cut stage, improve injectability, improve development effectiveness and be one of urgent task that these oil fields face.Because chemical profile control transfer drive technological adaptability is wide, flexible operation is with low cost, is the prefered method that present oilfield stimulation is taped the latent power.Oil reservoir deep profile controlling transfer drive technology is effective one of the water driving technology that improves that on conventional profile control and extensive polymer flooding basis, grows up; It can effectively adjust oil reservoir intake profile and plane wave and efficient; Success ratio is high, is the developing direction of improving water driving technology in recent years.Oil deposit deep part transfer drive technology is different from polymer flooding and profile control technique to the requirement of chemical agent, and the cross-linking system that requires to use should have certain gel-formation power, also certain flow capacity will be arranged, and under differing temps and salinity condition, flexibility preferably arranged.Be in 70-90 ℃ temperature regime to telling the most of reservoir temperature in oil field, Kazakhstan, must have the gelinite that adapts to this oil reservoir system to reach the linking agent of dark accent, raising the output purpose.
Summary of the invention
The objective of the invention is problem to above prior art existence; A kind of high-temperature oil reservoir deep transfer drive linking agent its preparation method and the application in high-temperature oil reservoir chemical displacement of reservoir oil exploitation thereof are provided; Linking agent of the present invention is a polyhydroxy phenol HTG linking agent; Toxicity is low, have no irritating odor construction safety.
For realizing the object of the invention, one aspect of the present invention provides a kind of high-temperature oil reservoir deep transfer drive linking agent, it is characterized in that with phenol, vulkacit H, formaldehyde, solidifying agent be raw material, under the effect of catalyzer, forms through polyreaction.
Wherein, said solidifying agent is one or more in diethylenetriamine, triethylene tetramine, vinyl triamine or the ammonium chloride, is preferably ammonium chloride; Described catalyzer is sodium hydroxide or Pottasium Hydroxide, is preferably sodium hydroxide.
Wherein, The weight part proportioning of said raw material and catalyzer is: phenol 2-4, vulkacit H 1-3, formaldehyde 1-3, solidifying agent 1-3, catalyzer 0.5-1.5; Be preferably: phenol 2.5-3.5, vulkacit H 1.5-2.5, formaldehyde 1.5-2.5, solidifying agent 1.5-2.5, catalyzer 0.75-1.25 further are preferably phenol 3, vulkacit H 2, formaldehyde 2, solidifying agent 2, catalyzer 1.
Particularly, said formaldehyde is that mass percent concentration is 37% industrial formol solution.
The present invention provides the preparation method of a kind of high-temperature oil reservoir deep transfer drive linking agent on the other hand, comprises as follows step in sequence:
1) prepares raw material according to following weight part proportioning, comprise
Phenol 2-4, vulkacit H 1-3, formaldehyde 1-3, solidifying agent 1-3, catalyzer 0.5-1.5;
2) said raw material is added reaction kettle, after mixing, heat temperature raising is to 60-100 ℃, and keeping temperature is 60-100 ℃, carries out polyreaction, promptly gets.
Wherein, The weight part proportioning of raw material described in the step 1) is: phenol 2.5-3.5, vulkacit H 1.5-2.5, formaldehyde 1.5-2.5, solidifying agent 1.5-2.5, catalyzer 0.75-1.25 are preferably phenol 3, vulkacit H 2, formaldehyde 2, solidifying agent 2, catalyzer 1.
Wherein, temperature of reaction step 2) is preferably 80-90 ℃; The reaction times of said polyreaction is 2-3h, is preferably 2.5h.
Another aspect of the invention provides the application of a kind of above-mentioned high-temperature oil reservoir deep transfer drive linking agent in high-temperature oil reservoir chemical profile control, transfer drive.
High-temperature oil reservoir of the present invention deep transfer drive linking agent has following advantage:
1, high-temperature oil reservoir linking agent irritating smell of the present invention is low,, toxicity is low, especially uses nontoxic ammonium chloride as the prepared linking agent of solidifying agent, its toxicity is lower;
2, the compound adjusting driving agnet that is mixed with of high-temperature oil reservoir deep transfer drive linking agent of the present invention and polymer poly acrylic amide can be applicable to that deep chemistry transfer drive, the profile control of high-temperature oil reservoir handle, and is applicable to that temperature is the high-temperature oil reservoir more than 70 ℃;
3, high-temperature oil reservoir of the present invention deep transfer drive linking agent is remarkable in the adjusting driving agnet oil displacement efficiency that superpolymer is mixed with, and effect of field application is relatively good, has improved the RF in oil field.
4, high-temperature oil reservoir deep transfer drive linking agent preparation method of the present invention is simple, easy to operate, and sufficient raw is cheap, is suitable for applying;
5, high-temperature oil reservoir of the present invention deep transfer drive linking agent is in oilfield chemistry transfer drive, profile control site operation process, convenient in application, and construction is simple.
Description of drawings
Fig. 1 is the chemical structural formula of staple in the compound adjusting driving agnet in high-temperature oil reservoir of the present invention deep.
Embodiment
Industrial goods polyhydroxy phenol linking agent of the present invention is a raw material with phenol, vulkacit H, formaldehyde, catalyzer, solidifying agent; In reaction kettle, be heated to certain temperature; Under the effect of catalyzer, carry out polyreaction; Generation contains the high temperature performed polymer mixture (as containing monohydroxy phenol, dihydric phenol performed polymer) of hydroxyl phenol, and promptly high temperature performed polymer organic crosslinking agent mixture that is to say to obtain high temperature performed polymer linking agent.
The high temperature performed polymer linking agent of preparation has no irritating odor, toxicity significantly reduces, and generates the adjusting driving agnet that is used for high-temperature oil reservoir deep transfer drive with the compound back of SEPIGEL 305, and site operation is safe in utilization.
Raw material formaldehyde in the embodiment of the invention is that mass percent concentration is 37% industrial formol solution; Solidifying agent adopts ammonium chloride, and other also are applicable to the present invention like diethylenetriamine, triethylene tetramine, vinyl triamine; Catalyzer adopts sodium hydroxide, and other also are applicable to the present invention like Pottasium Hydroxide.
Embodiment 1
One, synthesizing high temperature oil deposit deep part transfer drive linking agent
1, according to following weight proportion prepare raw material (* 10kg)
Phenol 3, vulkacit H 2, formaldehyde 2, solidifying agent 2, catalyzer 1
2, above-mentioned raw materials is joined in the reaction kettle together, mix, heat and make temperature remain 85 ± 5 ℃, under this temperature, carry out polyreaction.
3, behind the reaction 2.5h, reaction mixture is cooled to normal temperature (25 ℃), promptly get performed polymer linking agent (being that high-temperature oil reservoir deep transfer drive is with poly-hydroxy phenols linking agent).
Two, preparation high-temperature oil reservoir deep adjusting driving agnet
1, clear water and SEPIGEL 305 are mixed; Be mixed with the polyacrylamide solution that concentration is 1000mg/L; Be the SEPIGEL 305 that adds 1000mg in every 1L clear water, that is to say that the weight that contains SEPIGEL 305 in every 1L clear water is 1000mg; Wherein, the molecular weight of SEPIGEL 305 is 1,200 ten thousand;
2, add clear water to high-temperature oil reservoir deep transfer drive in poly-hydroxy phenols linking agent; Mix; Be mixed with the cross-linking agent solution that concentration is 600mg/L; Be to add the performed polymer linking agent that the step () of 600mg prepares in every 1L clear water, the weight that is to say performed polymer linking agent in every 1L clear water is 600mg;
3, polyacrylamide solution and cross-linking agent solution are mixed promptly get, wherein, the weight proportion of linking agent is 2: 1 in SEPIGEL 305 in the polyacrylamide solution and the cross-linking agent solution.
The high temperature performed polymer linking agent and the SEPIGEL 305 effect of the present invention's preparation; At a certain temperature; Forming SEPIGEL 305-resol is the plural gel body (like Fig. 1) of staple; Produce resol, the methylene base Vestolen PP 7052 phthalein amine gel of part simultaneously, obtain the compound adjusting driving agnet of polyhydroxy phenol high temperature, i.e. the compound adjusting driving agnet in high-temperature oil reservoir deep.
Embodiment 2
One, synthesizing high temperature oil deposit deep part transfer drive linking agent
1, according to following weight proportion prepare raw material (* 10kg)
Phenol 2.5, vulkacit H 2.5, formaldehyde 1.5, solidifying agent 1.5, catalyzer 1.75
2, above-mentioned raw materials is joined in the reaction kettle together, mix, heat and make temperature remain 95 ± 5 ℃, under this temperature, carry out polyreaction.
3, reaction 2h cools reaction mixture to normal temperature (25 ℃), promptly gets.
Two, preparation high-temperature oil reservoir deep adjusting driving agnet
1, clear water and SEPIGEL 305 are mixed; Be mixed with the polyacrylamide solution that concentration is 800mg/L; Be the SEPIGEL 305 that adds 800mg in every 1L clear water, that is to say that the weight that contains SEPIGEL 305 in every 1L clear water is 800mg; Wherein, the molecular weight of SEPIGEL 305 is 1,700 ten thousand;
2, add clear water to high-temperature oil reservoir deep transfer drive in poly-hydroxy phenols linking agent; Mix; Be mixed with the cross-linking agent solution that concentration is 700mg/L; Be to add the performed polymer linking agent that the step () of 700mg prepares in every 1L clear water, the weight that is to say performed polymer linking agent in every 1L clear water is 700mg;
3, polyacrylamide solution and cross-linking agent solution are mixed promptly get, wherein, the weight proportion of linking agent is 4: 1 in SEPIGEL 305 in the polyacrylamide solution and the cross-linking agent solution.
Embodiment 3
One, synthesizing high temperature oil deposit deep part transfer drive linking agent
1, according to following weight proportion prepare raw material (* 10kg)
Phenol 3.5, vulkacit H 1.5, formaldehyde 2.5, solidifying agent 2.5, catalyzer 1.25
2, above-mentioned raw materials is joined in the reaction kettle together, mix, heat and make temperature remain 80 ± 5 ℃, under this temperature, carry out polyreaction.
3, behind the reaction 3h, reaction mixture is cooled to normal temperature (25 ℃), promptly get.
Two, preparation high-temperature oil reservoir deep adjusting driving agnet
1, clear water and SEPIGEL 305 are mixed; Be mixed with the polyacrylamide solution that concentration is 1200mg/L; Be the SEPIGEL 305 that adds 1200mg in every 1L clear water, that is to say that the weight that contains SEPIGEL 305 in every 1L clear water is 1200mg; Wherein, the molecular weight of SEPIGEL 305 is 1,500 ten thousand;
2, add clear water to high-temperature oil reservoir deep transfer drive in poly-hydroxy phenols linking agent; Mix; Be mixed with the cross-linking agent solution that concentration is 500mg/L; Be to add the performed polymer linking agent that the step () of 500mg prepares in every 1L clear water, the weight that is to say performed polymer linking agent in every 1L clear water is 500mg;
3, polyacrylamide solution and cross-linking agent solution are mixed promptly get, wherein, the weight proportion of linking agent is 2: 1 in SEPIGEL 305 in the polyacrylamide solution and the cross-linking agent solution.
Embodiment 4
One, synthesizing high temperature oil deposit deep part transfer drive linking agent
1, according to following weight proportion prepare raw material (* 10kg)
Phenol 2, vulkacit H 1, formaldehyde 3, solidifying agent 1, catalyzer 0.5
2, above-mentioned raw materials is joined in the reaction kettle together, mix, heat and make temperature remain 90 ± 5 ℃, under this temperature, carry out polyreaction.
3, behind the reaction 2.5h, reaction mixture is cooled to normal temperature (25 ℃), promptly get.
Two, preparation high-temperature oil reservoir deep adjusting driving agnet
1, clear water and SEPIGEL 305 are mixed; Be mixed with the polyacrylamide solution that concentration is 400mg/L; Be the SEPIGEL 305 that adds 400mg in every 1L clear water, that is to say that the weight that contains SEPIGEL 305 in every 1L clear water is 400mg; Wherein, the molecular weight of SEPIGEL 305 is 1,200 ten thousand;
2, add clear water to high-temperature oil reservoir deep transfer drive in poly-hydroxy phenols linking agent; Mix; Be mixed with the cross-linking agent solution that concentration is 1000mg/L; Be to add the performed polymer linking agent that the step () of 1000mg prepares in every 1L clear water, the weight that is to say performed polymer linking agent in every 1L clear water is 1000mg;
3, polyacrylamide solution and cross-linking agent solution are mixed promptly get, wherein, the weight proportion of linking agent is 6: 1 in SEPIGEL 305 in the polyacrylamide solution and the cross-linking agent solution.
Embodiment 5
One, synthesizing high temperature oil deposit deep part transfer drive linking agent
1, according to following weight proportion prepare raw material (* 10kg)
Phenol 4, vulkacit H 3, formaldehyde 1, solidifying agent 3, catalyzer 1.5
2, above-mentioned raw materials is joined in the reaction kettle together, mix, heat and make temperature remain 65 ± 5 ℃, under this temperature, carry out polyreaction.
3, behind the reaction 3h, reaction mixture is cooled to normal temperature (25 ℃), promptly get.
Two, preparation high-temperature oil reservoir deep adjusting driving agnet
1, clear water and SEPIGEL 305 are mixed; Be mixed with the polyacrylamide solution that concentration is 1500mg/L; Be the SEPIGEL 305 that adds 1500mg in every 1L clear water, that is to say that the weight that contains SEPIGEL 305 in every 1L clear water is 1500mg; Wherein, the molecular weight of SEPIGEL 305 is 1,200 ten thousand;
2, add clear water to high-temperature oil reservoir deep transfer drive in poly-hydroxy phenols linking agent; Mix; Be mixed with the cross-linking agent solution that concentration is 200mg/L; Be to add the performed polymer linking agent that the step () of 200mg prepares in every 1L clear water, the weight that is to say performed polymer linking agent in every 1L clear water is 200mg;
3, polyacrylamide solution and cross-linking agent solution are mixed promptly get, wherein, the weight proportion of linking agent is 1: 1 in SEPIGEL 305 in the polyacrylamide solution and the cross-linking agent solution.
1 one-tenth colloidality viscosity test of Test Example
It is in 80 ℃ of baking ovens that the adjusting driving agnet of embodiment 1-5 preparation is put in temperature respectively; Its viscosity number of different time sampling and measuring; To investigate adjusting driving agnet gel-forming property in the different time, wherein adopt the Brookfield viscometer under the 6rpm condition, to measure the viscosity of adjusting driving agnet, it is as shown in table 1 to measure the result.
Table 1 adjusting driving agnet gel-forming property viscosity changes
Experimental result shows:
1, the present invention's linking agent of being used for high-temperature oil reservoir deep transfer drive forms gel with after the polymer poly acrylic amide mixes, and the transfer drive, the profile control that can be used for high-temperature oil reservoir are handled, can be as high-temperature oil reservoir deep adjusting driving agnet and amendment use;
2, the present invention is used for the linking agent of high-temperature oil reservoir deep transfer drive and cohesion that SEPIGEL 305 mixes is a kind of movable gel (being colloidal dispersed gel); Can realize dynamic plugging to down-hole most permeable zone section; The displacement oil recovery factor is high, has changed the short defective of conventional adjusting driving agnet validity period.
3, to be used for the cohesion viscosity that linking agent and the SEPIGEL 305 of high-temperature oil reservoir deep transfer drive form high in the present invention, and gelation time is adjustable, becoming glue can be used for the high seepage channel on shutoff water filling stratum after 2-5 days, plays the purpose that steady oil is controlled water; Viscosity increases gradually after becoming glue, and gelation time is long, prevents compound adjusting driving agnet block pumps and pipeline, the validity period that has prolonged compound adjusting driving agnet simultaneously.
4, the present invention is used for need not controlling when cohesion that linking agent and the SEPIGEL 305 of high-temperature oil reservoir deep transfer drive form prepares the pH of solution; Ground viscosity is lower than 100mPa.S during preparation; The compound adjusting driving agnet at preparation initial stage has higher flowability; Flow easily, be prone to inject the down-hole, be suitable for extensive, the long-time injection.
5, to be used for the proportioning of linking agent and SEPIGEL 305 of high-temperature oil reservoir deep transfer drive low in the present invention, and promptly polymkeric substance is low with the ratio of linking agent solid content, can significantly reduce the use of chemical reagent, has reduced production cost.
6, the compound adjusting driving agnet displacement in high-temperature oil reservoir deep viscosity of the present invention is high, and environmental resistance is good, can effectively stop up macropore and string layer.
7, when gathering double ratio when excessive, as gathering double ratio 6: 1 among the embodiment 4, the viscosity drop amplitude was bigger after the profile control system became glue, explained that when gathering double ratio be more greatly that gelling system exists signs of degradation, when therefore constructing at the scene, should control and gather the double ratio example.
Test Example 2 two-tube non-homogeneous model tests (being the adjusting driving agnet system thing mould research of high-temperature oil reservoir deep)
Simulation Shandong, Xinjiang restrains the oil field permeability variation situation of oozing, and adopts parallel two-tube (diameter is that 5cm, length are 87.21cm) heterogeneous body sand-packed model to carry out oil displacement test, to investigate the compound adjusting driving agnet oil displacement efficiency in high-temperature oil reservoir deep under static conditions.The rate of permeation of high permeability model is 550-600 * 10
-3μ m
2The rate of permeation of low permeability model is 40-50 * 10
-3μ m
2, permeability grade is 11-15 times.
The adjusting driving agnet of the polymer flooding of testing as two-tube non-homogeneous model with the polymer poly acrylamide soln of the compound adjusting driving agnet in high-temperature oil reservoir deep of embodiment 1-5 preparation and reference examples 1-5 respectively carries out oil displacement test.
Testing sequence is following:
1) single tube is tested rate of permeation with clear water respectively;
2) single tube is vacuumized saturated Shandong, back respectively and restrain the crude oil that oozes, wherein, the density of ground crude oil is 0.8878g/cm
3, viscosity is 255.4mPa.s;
3) carry out water drive crude oil after the two-tube parallel connection simultaneously, water drive reaches 98%, water drive oil recovery factor such as table 2 to moisture;
4) carry out compound adjusting driving agnet displacement of reservoir oil test then simultaneously, wherein, the amount of the compound adjusting driving agnet of injection is 0.2 times (0.2pv) of volume of voids, and the RF after the compound transfer drive is as shown in table 2.
The mensuration result of two-tube non-homogeneous model test is as shown in table 2.
The movable gel of the two-tube parallel model of table 2 drives effect (experimental temperature 75 ' C)
The volume of voids multiple of PV---core
Experimental result shows:
1, adopts the compound adjusting driving agnet in high-temperature oil reservoir deep that polyhydroxy phenol type high temp performed polymer organic crosslinking agent of the present invention and SEPIGEL 305 prepare displacement crude oil effectively; Displacement is respond well; Improved RF, average recovery ratio has improved more than 8.5%, reaches 8.5-17.6%.
2, the compound adjusting driving agnet in high-temperature oil reservoir deep of the present invention's preparation is strong than the startup ability of polymer flooding to the startup ability of the irreducible oil of the low-permeability layer of non-homogeneous pay; Improved the profit mobility ratio; Improved the RF of low permeability layer, RF has improved 11.3-18.9%.
3, after the compound adjusting driving agnet in high-temperature oil reservoir deep of the present invention's preparation drives there be than obvious variation the flow of high and low infiltration layer, the low-permeability layer flow has raising by a relatively large margin, makes the reserves of low permeability layer obtain obvious startup.
Test Example 3 oil field transfer drive researchs
Adopt the compound adjusting driving agnet of high-temperature oil reservoir of the present invention deep transfer drive linking agent and polymer manufacture to be mainly used in WIW chemical profile control (driving) in the high-temperature oil reservoir, reduce high water-intake interval water regain, improve water injection pressure; Low permeability layer suction in making; Improve and stop up high seepage channel on profile-log of water injection or the plane, improve and inject ripples and volume, improve the water drive situation; And then improve individual well or well group output, reduce moisture.
One, rig-site utilization
1, selects well
According to geology and produce actually, select gram the ooze beautiful eastern 201-X in oil field, beautiful eastern 204-19, beautiful east 203, beautiful eastern 2-42 well in Shandong to carry out the on-the-spot transfer drive profile control test in oil field in 2009-2010 year, wherein, the reservoir temperature of oil well is 70 ℃～125 ℃; The oil reservoir rate of permeation is 20～3000 * 10-3um
2The water source is oil field clear water or sewage, the moisture 70-90% of four-hole well.
2, construction
The clear and definite decreasing water cut and increasing oil purposes of factor such as, water breakthrough direction moisture according to tracer agent, well group;
According to definiteization of factor accent radiuses such as waterflood front, water-flushed zone scope, well spacing, section development degrees; Simultaneously with reference to effectively water sucting thickness, adjusting driving agnet character are calculated definite compound adjusting driving agnet consumption that injects; Wherein, Be chosen in the beautiful eastern 201-X in the same area, beautiful eastern 204-19, beautiful east 203, beautiful eastern 2-42 well, its compound adjusting driving agnet consumption is respectively 4160m
3, 5970m
3, 7500m
3, 3000m
3
The injection of anyization adjustment all should be below formation-parting pressure, considers that simultaneously interlayer trigger pressure difference confirms the injection pressure gradient of zone of interest, and then extrapolates injection pressure.Injection pressure gradient, liquid column hydrostatic pressure, zone of interest trigger pressure and water injectivity index are calculated the operation pressure of setting under the discharge capacity.
According to the reservoir situation of the eastern 201-X of jade, beautiful eastern 204-19, beautiful east 203, beautiful eastern 2-42 well group, confirm that it is 74-160m that individual well injects intensity in the Test Example of the present invention
3/ m, average individual well injects intensity 122m
3/ m, the control injection speed is near the injection speed of each individual well injection allocation, and injection pressure is controlled at below the waterflood system pressure, and operating tool string is annotated zone of interest for the blank tubing list, adopts the design of injection slug to carry out the transfer drive construction, and the slug design is as shown in table 3:
The design of table 3 slug as follows
Specific as follows:
1) leading edge slug: inject low viscous polyacrylamide solution (i.e. the SEPIGEL 305 of low base fluid viscosity) to the down-hole, the injection radius is 2-4m, and main effect is to push local water open, plays buffer action, the validity of protection main body slug;
2) main body slug:, inject LV, medium viscosity, the compound adjusting driving agnet of HV, deep shutoff water breakthrough direction to the down-hole successively according to the order that viscosity raises gradually according to initial injection pressure.Beautiful eastern 201-X, beautiful eastern 204-19, beautiful east 203, beautiful eastern 2-42 well main body slug stage adjusting driving agnet behaviour in service such as table 4:
Table 4 Huas accent well main body slug construction table
3) trailing edge slug: inject the compound adjusting driving agnet of HV to the down-hole, protection shutoff slug is not washed open by follow-up injection liquid, the integrity and the anti-scouring capability of protection main body block section;
4) replace slug: inject displacing liquid to the down-hole; Replace the compound adjusting driving agnet of HV that trailing edge slug step is injected; Cross the area that replaces to apart from well radius >=3m, displacing liquid is the polyacrylamide solution of high base fluid viscosity, promptly full-bodied polyacrylamide solution.
3, construction effect (well group effect)
The compound adjusting driving agnet that the polyhydroxy phenol type high temp performed polymer organic crosslinking agent of employing the present invention preparation and polymer poly acrylamide soln are mixed with is fit to the Shandong and restrains ooze oil field transfer drive, profile control; The change accent mode effect of composite slug is better; The oil and water well end is efficient to be 100%, and it is as shown in table 5 to change accent well injection side construction situation; Construction back oil well effect is as shown in table 6.
Table 5 Huas accent well injection side construction summary table
PI value---pressure drop index is reflected at the degree that wellhead pressure descends in the shut-in time, also represents the landing degree of reservoir pressure simultaneously; Judge the necessity of individual well profile control, numerical value is more little, and it is severe to explain that present reservoir pressure descends; It is strong that water filling breaks through degree, so the necessity of profile control is just big more.
The table 6 oil well effect summary sheet that takes effect
Economic and Efficiency Analysis
The 4 mouthfuls of wells of constructing are changed adjustment expense and construction cost, 3,780,000 yuan of input expenses; Increase oily 2830t, fall liquid 2800m
3, 1,358 ten thousand yuan of output expenses, input-output ratio 1: 3.6.
Claims (10)
1. a high-temperature oil reservoir transfer drive is used linking agent, it is characterized in that with phenol, vulkacit H, formaldehyde, solidifying agent be raw material, under the effect of catalyzer, forms through polyreaction.
2. linking agent as claimed in claim 1 is characterized in that said solidifying agent is one or more in diethylenetriamine, triethylene tetramine, vinyl triamine or the ammonium chloride.
3. according to claim 1 or claim 2 linking agent is characterized in that described catalyzer is sodium hydroxide or Pottasium Hydroxide.
4. according to claim 1 or claim 2 linking agent is characterized in that the weight part proportioning of said raw material and catalyzer is: phenol 2-4, vulkacit H 1-3, formaldehyde 1-3, solidifying agent 1-3, catalyzer 0.5-1.5.
5. linking agent as claimed in claim 4 is characterized in that the weight part proportioning of said raw material and catalyzer is: phenol 2.5-3.5, vulkacit H 1.5-2.5, formaldehyde 1.5-2.5, solidifying agent 1.5-2.5, catalyzer 0.75-1.25.
6. a high-temperature oil reservoir transfer drive is characterized in that comprising as follows step in sequence with the preparation method of linking agent:
1) prepares raw material according to following weight part proportioning, comprise
Phenol 2-4, vulkacit H 1-3, formaldehyde 1-3, solidifying agent 1-3, catalyzer 0.5-1.5;
2) said raw material is added reaction kettle, after mixing, heating, the following polyreaction of carrying out 60-100 ℃ of temperature promptly gets.
7. preparation method as claimed in claim 6 is characterized in that the weight part proportioning of raw material described in the step 1) is: phenol 2.5-3.5, vulkacit H 1.5-2.5, formaldehyde 1.5-2.5, solidifying agent 1.5-2.5, catalyzer 0.75-1.25.
8. like claim 6 or 7 described preparing methods, it is characterized in that step 2) described in temperature of reaction be 80-90 ℃.
9. like claim 6 or 7 described preparing methods, it is characterized in that step 2) described in reaction times of polyreaction be 2-3h.
One kind like the said high-temperature oil reservoir transfer drive of claim 1-5 with the application of linking agent in high-temperature oil reservoir chemical displacement of reservoir oil exploitation.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110334720.8A CN102558469B (en) | 2010-10-29 | 2011-10-28 | Cross-linking agent for profile control and oil displacement for high-temperature oil reservoir, as well as preparation method and application for same |
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|---|---|---|---|
| CN2010105249544A CN102060966A (en) | 2010-10-29 | 2010-10-29 | Synthesis and application in chemical control of HY2008JL high-temperature cross-linking agent |
| CN201010524954.4 | 2010-10-29 | ||
| CN201110334720.8A CN102558469B (en) | 2010-10-29 | 2011-10-28 | Cross-linking agent for profile control and oil displacement for high-temperature oil reservoir, as well as preparation method and application for same |
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| CN102558469B CN102558469B (en) | 2014-05-07 |
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| CN2010105249544A Pending CN102060966A (en) | 2010-10-29 | 2010-10-29 | Synthesis and application in chemical control of HY2008JL high-temperature cross-linking agent |
| CN201110334720.8A Expired - Fee Related CN102558469B (en) | 2010-10-29 | 2011-10-28 | Cross-linking agent for profile control and oil displacement for high-temperature oil reservoir, as well as preparation method and application for same |
| CN201110336846.9A Expired - Fee Related CN102533240B (en) | 2010-10-29 | 2011-10-28 | High-temperature oil reservoir composite modifying and flooding agent and preparing method and application thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105440233A (en) * | 2015-12-10 | 2016-03-30 | 中国石油天然气股份有限公司 | Fireflooding channeling sealing agent and preparation method thereof |
| CN111205422A (en) * | 2018-11-22 | 2020-05-29 | 中国石油天然气股份有限公司 | Oily sludge plugging gel and preparation method and application thereof |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103214639A (en) * | 2013-04-24 | 2013-07-24 | 新疆华油技术服务股份有限公司 | Production method of water-soluble phenolic resin cross-linking agent used for water shut-off and profile control of oil field |
| CN106047324B (en) * | 2016-06-30 | 2018-12-21 | 中国石油大学(华东) | Reinforcing frozen glue dispersion in-depth profile control suitable for hyposmosis high temperature and high salt oil deposit |
| CN107384343B (en) * | 2017-06-27 | 2020-07-21 | 任丘市宏华兴化工有限公司 | High-temperature-resistant oil reservoir profile control water shutoff agent |
| CN109666468B (en) * | 2018-10-31 | 2019-11-05 | 中国石油大学(华东) | Skid-mounted type frozen glue dispersion process units and frozen glue dispersion and preparation method and application |
| CN113046043B (en) * | 2019-12-27 | 2022-11-04 | 中国石油天然气股份有限公司 | Oil reservoir reinjection water liquid preparation profile control and flooding agent, preparation method and application thereof |
| CN115261005A (en) * | 2021-04-30 | 2022-11-01 | 中国石油天然气股份有限公司 | Modifying and flooding agent and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101735421A (en) * | 2009-12-03 | 2010-06-16 | 中国石油大学(华东) | Method for preparing phenolic resin pre-condensation polymer cross-linking agent |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101033392B (en) * | 2007-03-30 | 2011-01-12 | 盘锦市庆联油田工程技术服务有限公司 | Expansion type flow gel profile controlling water shutoff agent |
-
2010
- 2010-10-29 CN CN2010105249544A patent/CN102060966A/en active Pending
-
2011
- 2011-10-28 CN CN201110334720.8A patent/CN102558469B/en not_active Expired - Fee Related
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101735421A (en) * | 2009-12-03 | 2010-06-16 | 中国石油大学(华东) | Method for preparing phenolic resin pre-condensation polymer cross-linking agent |
Non-Patent Citations (1)
| Title |
|---|
| M.F. DRUMM. ET AL.: "cross linking of a phenol-formaldehyde novolac determination by dynamic-mechanical measurements", 《INDUSTRIAL AND ENGINEERING CHEMISTRY》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105440233A (en) * | 2015-12-10 | 2016-03-30 | 中国石油天然气股份有限公司 | Fireflooding channeling sealing agent and preparation method thereof |
| CN105440233B (en) * | 2015-12-10 | 2017-09-01 | 中国石油天然气股份有限公司 | A kind of fireflood envelope alters agent and preparation method thereof |
| CN111205422A (en) * | 2018-11-22 | 2020-05-29 | 中国石油天然气股份有限公司 | Oily sludge plugging gel and preparation method and application thereof |
| CN111205422B (en) * | 2018-11-22 | 2022-12-02 | 中国石油天然气股份有限公司 | Oily sludge plugging gel and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102060966A (en) | 2011-05-18 |
| CN102558469B (en) | 2014-05-07 |
| CN102533240B (en) | 2014-05-07 |
| CN102533240A (en) | 2012-07-04 |
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