CN108300437A - A kind of oil-soluble mounting medium and preparation method thereof for bottom water reservoir pressure break - Google Patents
A kind of oil-soluble mounting medium and preparation method thereof for bottom water reservoir pressure break Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
- C09K8/502—Oil-based compositions
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L45/00—Compositions of homopolymers or copolymers of compounds having no unsaturated aliphatic radicals in side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic or in a heterocyclic ring system; Compositions of derivatives of such polymers
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L57/00—Compositions of unspecified polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C08L57/02—Copolymers of mineral oil hydrocarbons
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L93/00—Compositions of natural resins; Compositions of derivatives thereof
- C08L93/04—Rosin
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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Abstract
The invention discloses a kind of oil-soluble mounting mediums for bottom water reservoir pressure break, belong to oilfield stimulation field.Include the component of following mass percent:Framework material 5%~10%, rosin resin 15%~20%, gum dammar 5%~10%, Petropols 15%~25%, oil-soluble phenolic resin 8%~12%, terpene resin 15%~20%, asphalt 6%~12%, polyethylene 2%~4%;Surplus is density adjuster;Wherein, framework material is haydite, and density adjuster is barite or and calcium carbonate.The product has higher plugging strength, prevents bottom water coning, can realize water-control oil-increasing.Preparation method includes mixing and crushing rosin resin, gum dammar, Petropols, oil-soluble phenolic resin, terpene resin, asphalt and polyethylene wax, then, it is warming up to whole fusings, framework material and density adjuster are added under constant temperature, it mediates, container is poured into after mixing, is cooled to room temperature naturally, is crushed, is crushed, sieving.Preparation method is simple, raw material is easy to get.
Description
Technical field
The invention belongs to oilfield stimulation field, it is related to a kind of oil-soluble mounting medium for bottom water reservoir pressure break and its preparation
Method.
Background technology
As crude oil produces in recovery process, bottom water is easy to alter to form water cone bottom water reservoir, causes oil well High water cut.
Bottom water reservoir pressure break has following difficult point:Oil reservoir is away from water layer apart from short, and stress difference is small between oil reservoir and interlayer, and crack is easy to downward
It stretches;The physical properties of rock such as bottom oil-water-layer permeability are better than oil reservoir, and imbibition intensity is high;When underground viscosity of crude is differed with the viscosity of water
When larger, it is more likely formed bottom water coning, water logging phenomenon will be more serious.
Currently, the domestic technology mainly used in terms of bottom water reservoir fracturing reform is Optimizing construction parameter, float is carried out
Small-scale pressing crack construction to be measured, achievees the purpose that solve part bottom water reservoir fracturing reform to a certain extent, limitation is larger, than
When such as the lower bottom water reservoir of permeability needing that fairly large fracturing reform is taken to construct, the above method is taken, then is received
It imitates little.Therefore rising in recent years is blocked water as the serial renovation technique of core with saturating oil, i.e., by fracturing process to ground
Layer pump note blocking agent, blocking agent plastic or solidification in crack achieve the purpose that block water layer or reduce water phase permeability, to realize
The effect of water-control oil-increasing.
Invention content
The oil-soluble mounting medium and preparation method thereof that it is an object of the invention to a kind of for bottom water reservoir pressure break, the oil is molten
Property mounting medium have higher plugging strength, prevent bottom water coning, can realize water-control oil-increasing.Preparation method is simple, operation side
Just, raw material is easy to get, is suitble to industrialized production.
The present invention is to be achieved through the following technical solutions:
The invention discloses a kind of oil-soluble mounting mediums for bottom water reservoir pressure break, include the group of following mass percent
Point:
Framework material:5%~10%;
Rosin resin:15%~20%;
Gum dammar:5%~10%;
Petropols:15%~25%;
Oil-soluble phenolic resin:8%~12%;
Terpene resin:15%~20%;
Asphalt:6%~12%;
Polyethylene wax:2%~4%;
Surplus is density adjuster;
Wherein, framework material is haydite, and density adjuster is that density adjuster is the mixed of barite or calcium carbonate or both
Close object.
Preferably, the density of oil-soluble mounting medium is 0.98-1.02g/cm3。
Preferably, haydite grain size is 0.15~0.45mm.
Preferably, the grain graininess of blanc fixe is more than 100 mesh, and the grain graininess of Paris white is more than 100 mesh.
The invention also discloses the preparation methods of the above-mentioned oil-soluble mounting medium for bottom water reservoir pressure break, including following step
Suddenly:
Mixed rosin resin, gum dammar, Petropols, oil-soluble phenolic resin, terpene resin, asphalt and poly- second
Alkene wax obtains mixed material, then, is pulverized and mixed material, and kneader is then added, and control heating rate is 1 DEG C/min hereinafter, rising
Temperature is all melted to mixed material, constant temperature and keeps the range of temperature at 3 DEG C hereinafter, then, and framework material and close is added
Conditioning agent is spent, mediates to after all melting mixing, pours into container, be cooled to room temperature naturally, be crushed, crush again, sieving sieve
Choosing, you can.
Preferably, it is 20 mesh or less to be pulverized and mixed the grain size after material.
Preferably, the time of kneading is 30min or more.
Preferably, 20~60 mesh of sieving screening.
Compared with prior art, the present invention has technique effect beneficial below:
Oil-soluble mounting medium disclosed by the invention for bottom water reservoir pressure break, density is close to 1g/cm3, in fracturing fluid
With good suspension, has and can be uniformly distributed in crack after being pumped into stratum, it at the formation temperature can be with pressure break branch
It supports agent bonding to cure, after completion, oil-soluble mounting medium of the present invention gradually dissolves after the exudation of oil layer section crude oil, water layer section
Oil-soluble mounting medium continues to keep solid state, has higher plugging strength, prevents bottom water coning, realizes changing for water-control oil-increasing
Target is made, a kind of new material is provided for bottom water reservoir fracturing reform.
The preparation method of the oil-soluble mounting medium is simple and convenient to operate, raw material is easy to get, is suitble to industrialized production.
Specific implementation mode
With reference to specific embodiment, the present invention is described in further detail, it is described be explanation of the invention and
It is not to limit.
Embodiment 1
A kind of oil-soluble mounting medium for bottom water reservoir pressure break includes the following components'mass percentage:
40/70 mesh haydite:8%;
Rosin resin:17%;
Gum dammar:6%;
Petropols:21%;
Oil-soluble phenolic resin:9%;
Terpene resin:18%;
Asphalt:11%;
Polyethylene wax:3%;
120 mesh barites:7%.
Preparation method:Weigh rosin resin 85kg, gum dammar 30kg, Petropols 105kg, oil-soluble phenolic resin
45kg, terpene resin 90kg, asphalt 55kg, polyethylene wax 15kg, are crushed after mixing using industrial pulverizer, 20 mesh
Sieve tails over material separating twice, until all materials grain size all passes through 20 mesh screens.Obtained powder addition will be crushed to pinch
Conjunction machine controls 0.8 DEG C/min of heating rate, and all materials all melt after being warming up to 126 DEG C, maintain the temperature at 126 DEG C ± 3
DEG C, 0.15~0.30mm70/100 mesh haydite 40kg and 120 mesh barite 35kg are added, continues material after mediating 40min and has filled
Divide mixing, pour into tablet stainless steel iron sheet container, after being naturally cooling to room temperature, is crushed, crushes, screen 0.25~0.83mm20/
60 mesh parts obtain oil-soluble mounting medium finished product, density 0.98g/cm3。
Embodiment 2
For the oil-soluble mounting medium of bottom water reservoir pressure break, include the following components'mass percentage:
40/70 mesh haydite:7%;
Rosin resin:16%;
Gum dammar:8%;
Petropols:21%;
Oil-soluble phenolic resin:6%;
Terpene resin:19%;
Asphalt:13%;
Polyethylene wax:2%;
100/120 mesh barite:8%.
Preparation method:Weigh rosin resin 80kg, gum dammar 40kg, Petropols 105kg, oil-soluble phenolic resin
30kg, terpene resin 95kg, asphalt 65kg, polyethylene wax 10kg, are crushed after mixing using industrial pulverizer, 20 mesh
Sieve tails over material separating twice, until all materials grain size all passes through 20 mesh screens.Obtained powder addition will be crushed to pinch
Conjunction machine controls 1.0 DEG C/min of heating rate, and all materials all melt after being warming up to 122 DEG C, maintain the temperature at 122 DEG C ± 3
DEG C, 40/70 mesh haydite 35kg and 100 mesh barite 40kg is added, continues material after mediating 35min and has mixed well, pour into flat
Plate stainless steel iron sheet container after being naturally cooling to room temperature, is crushed, crushes, screens 20/60 mesh part, obtain oil-soluble mounting medium
Finished product, density 0.98g/cm3。
Implement 3
For the oil-soluble mounting medium of bottom water reservoir pressure break, include the following components'mass percentage:
70/100 mesh haydite:5%;
Rosin resin:15%;
Gum dammar:9%;
Petropols:17%;
Oil-soluble phenolic resin:10%
Terpene resin:15%;
Asphalt:12%
Polyethylene wax:3%;
120/150 mesh calcium carbonate:14%
Preparation method:Weigh rosin resin 75kg, gum dammar 45kg, Petropols 85kg, oil-soluble phenolic resin
50kg, terpene resin 75kg, asphalt 60kg, polyethylene wax 15kg, are crushed after mixing using industrial pulverizer, 20 mesh
Sieve tails over material separating twice, until all materials grain size all passes through 20 mesh screens.Obtained powder addition will be crushed to pinch
Conjunction machine controls 0.8 DEG C/min of heating rate, and all materials all melt after being warming up to 122 DEG C, maintain the temperature at 122 DEG C ± 3
DEG C, 40/70100 mesh haydite 25kg and 100/150 mesh calcium carbonate 70kg is added, continues material after mediating 35min and has mixed well,
Tablet stainless steel iron sheet container is poured into, after being naturally cooling to room temperature, is crushed, crushes, screen 20/6030 mesh part, it is molten to obtain oil
Property mounting medium finished product, density 1.00g/cm3。。
Embodiment 4
For the oil-soluble mounting medium of bottom water reservoir pressure break, include the following components'mass percentage:
70/100 mesh haydite:10%;
Rosin resin:19%;
Gum dammar:5%;
Petropols:22%;
Oil-soluble phenolic resin:10%;
Terpene resin:16%;
Asphalt:7%;
Polyethylene wax:3%;
120/200 mesh calcium carbonate:8%.
Preparation method:Weigh rosin resin 95kg, gum dammar 25kg, Petropols 110kg, oil-soluble phenolic resin
50kg, terpene resin 80kg, asphalt 35kg, polyethylene wax 15kg, are crushed after mixing using industrial pulverizer, 20 mesh
Sieve tails over material separating twice, until all materials grain size all passes through 20 mesh screens.Obtained powder addition will be crushed to pinch
Conjunction machine controls 0.8 DEG C/min of heating rate, and all materials all melt after being warming up to 122 DEG C, maintain the temperature at 122 DEG C ± 3
DEG C, 40/70 mesh haydite 50kg and 100/200 mesh calcium carbonate 40kg is added, continues material after mediating 35min and has mixed well,
Enter tablet stainless steel iron sheet container, after being naturally cooling to room temperature, be crushed, crush, screen 20/60 mesh part, obtains oil-soluble envelope
Gu agent finished product, density is (0.99) g/cm3。
Embodiment 5
For the oil-soluble mounting medium of bottom water reservoir pressure break, include the following components'mass percentage:
40/70 mesh haydite:10%;
Rosin resin:20%;
Gum dammar:6%;
Petropols:15%;
Oil-soluble phenolic resin:8%;
Terpene resin:15%;
Asphalt:8%;
Polyethylene wax:3%;
100, the mixture of 120 mesh barites and 120 calcium carbonate:15%, wherein the mass ratio of barite and calcium carbonate is
1:1。
Preparation method:Weigh rosin resin 200kg, gum dammar 30kg, Petropols 75kg, oil-soluble phenolic resin
40kg, terpene resin 75kg, asphalt 40kg, polyethylene wax 15kg, are crushed after mixing using industrial pulverizer, 20 mesh
Sieve tails over material separating twice, until all materials grain size all passes through 20 mesh screens.Obtained powder addition will be crushed to pinch
Conjunction machine controls 0.8 DEG C/min of heating rate, and all materials all melt after being warming up to 122 DEG C, maintain the temperature at 122 DEG C ± 3
DEG C, the mixture 75kg of 40/70 mesh haydite 50kg, 120 mesh barites and 120 calcium carbonate is added, wherein barite and calcium carbonate
Mass ratio be 1:1, continue material after mediating 35min and mixed well, pours into tablet stainless steel iron sheet container, be naturally cooling to
It after room temperature, is crushed, crushes, screen 20/60 mesh part, obtain oil-soluble mounting medium finished product, density is (1.01) g/cm3。
Embodiment 6
For the oil-soluble mounting medium of bottom water reservoir pressure break, include the following components'mass percentage:
70/100 mesh haydite:5%;
Rosin resin:16%;
Gum dammar:10%;
Petropols:25%;
Oil-soluble phenolic resin:12%;
Terpene resin:15%;
Asphalt:6%;
Polyethylene wax:2%;
The mixture of 120/250 mesh barite and 250 mesh calcium carbonate:9%, wherein the mass ratio of barite and calcium carbonate
It is 3:1.
Preparation method:Weigh rosin resin 80kg, gum dammar 50kg, Petropols 125kg, oil-soluble phenolic resin
60kg, terpene resin 75kg, asphalt 30kg, polyethylene wax 10kg, are crushed after mixing using industrial pulverizer, 20 mesh
Sieve tails over material separating twice, until all materials grain size all passes through 20 mesh screens.Obtained powder addition will be crushed to pinch
Conjunction machine controls 0.8 DEG C/min of heating rate, and all materials all melt after being warming up to 122 DEG C, maintain the temperature at 122 DEG C ± 3
DEG C, the mixture 45kg of 40/70 mesh haydite 25kg, 120/250 mesh barite and 120/250 mesh calcium carbonate is added, wherein weight is brilliant
The mass ratio of stone and calcium carbonate is 3:1, continue material after mediating 35min and mixed well, pours into tablet stainless steel iron sheet container,
It after being naturally cooling to room temperature, is crushed, crushes, screen 20/60 mesh part, obtain oil-soluble mounting medium finished product, density is
(1.02)g/cm3。
Embodiment 7
For the oil-soluble mounting medium of bottom water reservoir pressure break, include the following components'mass percentage:
70/100 mesh haydite:9%;
Rosin resin:15%;
Gum dammar:9%;
Petropols:15%;
Oil-soluble phenolic resin:8%;
Terpene resin:20%;
Asphalt:13%;
Polyethylene wax:4%;
120/400 mesh barite:7%.
Preparation method:Weigh rosin resin 75kg, gum dammar 45kg, Petropols 75kg, oil-soluble phenolic resin
40kg, terpene resin 100kg, asphalt 65kg, polyethylene wax 20kg, are crushed after mixing using industrial pulverizer, 20
Mesh screen tails over material separating twice, until all materials grain size all passes through 20 mesh screens.Obtained powder will be crushed to be added
Kneader controls 0.8 DEG C/min of heating rate, and all materials all melt after being warming up to 122 DEG C, maintain the temperature at 122 DEG C ± 3
DEG C, 40-70 mesh haydite 45kg and 100/400 mesh barite 35kg are added, continues material after mediating 35min and has mixed well,
Enter tablet stainless steel iron sheet container, after being naturally cooling to room temperature, be crushed, crush, screen 20/60 mesh part, obtains oil-soluble envelope
Gu agent, density is (1.00) g/cm3。
Note:About 40/70 mesh, this statement is conventional representations of the industry for proppant, indicates that the grain size can be by 40
Purpose sieve cannot be sieved by 70 mesh, each mesh number corresponds to corresponding size, and 40/70 mesh indicates 0.21~0.38mm.
In order to verify the effect of the present invention, oil-soluble mounting medium obtained by Examples 1 to 7 is tested for the property, situation is such as
Under:
Water and oil-soluble testing experiment:
The oil-soluble mounting medium obtained by the Examples 1 to 7 of two parts of 10g is weighed respectively, into two portions of 10g oil-soluble mounting mediums
50mL diesel oil and 50mL water are poured into respectively, after being heated to 75 DEG C, 24 hours, is filtered respectively, and drying to constant weight at 100 DEG C, claims
Amount, which calculates, to be found, the oil-soluble mounting medium quality free of losses in water obtained by Examples 1 to 7, i.e., not soluble in water, Examples 1 to 7
Dissolution residual substance quality of the oil-soluble mounting medium of gained in diesel oil be followed successively by 1.5g, 1.4g, 1.3g, 1.2g, 1.3g,
1.4g, 1.5g, (with the haydite and barite uniform quality in sample), oil-soluble is good.
Curability testing experiment:
The oil-soluble mounting medium obtained by 2g Examples 1 to 7 is weighed respectively, is mixed respectively with 10g fracturing propping agents, is placed in and splits
Diversion chamber is stitched, 90min is kept under the conditions of 75 DEG C, 28MPa, is found after taking-up, the oil-soluble mounting medium obtained by Examples 1 to 7
It is integrally formed with fracturing propping agents consolidation, curing performance is good.
Performance test:
2g oil-soluble mounting mediums produced by the present invention are weighed, is mixed with 10g fracturing propping agents, is placed in fracture guide room,
80 DEG C, consolidate 120min under the conditions of 30MPa, then clear water is used to carry out displacement, it is 36.2MPa/m that barometric gradient, which is calculated,
Water plugging property is good, and replacement displacing medium is diesel oil, and barometric gradient is gradually reduced to 2.9MPa/m by 33.7MPa/m, illustrates this
Invention oil-soluble mounting medium solubility property under the conditions of oil phase obtained is good, ensures the gradual of oil layer section supporting crack permeability
Restore, reaches the transformation purpose of water-control oil-increasing.
Claims (8)
1. a kind of oil-soluble mounting medium for bottom water reservoir pressure break, which is characterized in that include the following components'mass percentage:
Framework material:5%~10%;
Rosin resin:15%~20%;
Gum dammar:5%~10%;
Petropols:15%~25%;
Oil-soluble phenolic resin:8%~12%;
Terpene resin:15%~20%;
Asphalt:6%~12%;
Polyethylene wax:2%~4%;
Surplus is density adjuster;
Wherein, framework material is haydite, and density adjuster is one or both of barite and calcium carbonate.
2. the oil-soluble mounting medium according to claim 1 for bottom water reservoir pressure break, which is characterized in that oil-soluble sealing
The density of agent is 0.98-1.02g/cm3。
3. the oil-soluble mounting medium according to claim 1 for bottom water reservoir pressure break, which is characterized in that haydite grain size is
0.15~0.45mm.
4. the oil-soluble mounting medium according to claim 1 for bottom water reservoir pressure break, which is characterized in that blanc fixe
Grain graininess is more than 100 mesh, and the grain graininess of Paris white is more than 100 mesh.
5. the preparation method of the oil-soluble mounting medium for bottom water reservoir pressure break described in Claims 1 to 4 any one, special
Sign is, includes the following steps:
Mixed rosin resin, gum dammar, Petropols, oil-soluble phenolic resin, terpene resin, asphalt and polyethylene
Wax obtains mixed material, then, is pulverized and mixed material, and kneader is then added, and control heating rate is 1 DEG C/min hereinafter, heating
It is all melted to mixed material, constant temperature and keeps the range of temperature at 3 DEG C hereinafter, then, framework material and density is added
Conditioning agent is mediated to after all at paste, pours into container, be cooled to room temperature naturally, broken, crush again, sieving screening, i.e.,
It can.
6. the preparation method of the oil-soluble mounting medium according to claim 5 for bottom water reservoir pressure break, which is characterized in that
It is 20 mesh or less to be pulverized and mixed the grain size after material.
7. the preparation method of the oil-soluble mounting medium according to claim 5 for bottom water reservoir pressure break, which is characterized in that
The time of kneading is 30min or more.
8. the preparation method of the oil-soluble mounting medium according to claim 5 for bottom water reservoir pressure break, which is characterized in that
Sieving 20~60 mesh of screening.
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