CN212334858U - Gansu area calcium and magnesium ion standard-exceeding fracturing fluid matching system - Google Patents
Gansu area calcium and magnesium ion standard-exceeding fracturing fluid matching system Download PDFInfo
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- CN212334858U CN212334858U CN202020840209.XU CN202020840209U CN212334858U CN 212334858 U CN212334858 U CN 212334858U CN 202020840209 U CN202020840209 U CN 202020840209U CN 212334858 U CN212334858 U CN 212334858U
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Abstract
The utility model provides a Gansu area calcium magnesium ion fracturing fluid supporting system that exceeds standard relating to fracturing technical field, including the liquid preparation car, characterized by, be provided with in the carriage and mix jar, additive feeding device, water installations, stickness material feeding device and play liquid system, mix jar be used for with the material mixing that additive feeding device, water installations, stickness material feeding device carried evenly and discharge through going out the liquid system; the utility model discloses carry out purification treatment to the water before the surface water is thoughtlessly joined in marriage, adopt high-efficient cation chelator, make free calcium in shallow surface water, magnesium ion content descend, realized adopting shallow surface water configuration fracturing fluid on the spot, saved the loaded down with trivial details link that long distance transported domestic water to well site joined in marriage liquid, practice thrift the cost, usable liquid car of joining in marriage carries out the scene and joins in marriage liquid, and single well operation preparation cycle is short, supplies liquid steadily.
Description
Technical Field
The utility model belongs to the technical field of fracturing technology and specifically relates to a supporting system of kansu area calcium magnesium ion fracturing fluid that exceeds standard.
Background
The hydraulic fracturing process is a production stabilizing and increasing process widely used in oil fields, at present, unconventional oil and gas reservoirs appear in large quantities in China, low-permeability reservoirs are low in porosity, low in permeability, strong in heterogeneity, low in reserve abundance and easy to damage, and most of oil and gas wells of the low-permeability reservoirs have capacity after fracturing production increasing measures are carried out. Hydraulic fracturing has become an important measure for increasing production in low-permeability and ultra-low-permeability oil field development, and the technological level of the hydraulic fracturing has direct influence on economic development of oil gas. The research and development of large-scale fracturing matching technology plays an important role in improving the site construction level and the quality control capability.
In the process of reservoir modification, no matter sand fracturing or acid fracturing, crosslinked or uncrosslinked plant gum or modified plant gum is generally used as a prefluid to achieve the purposes of making seams and reducing the temperature of a stratum, the plant gum can be regarded as polyhydroxy polysaccharide formed by combining galactose and mannose according to different proportions, after gel breaking of a crosslinked fracturing fluid, polyhydroxy compounds with short chain links can react with alkaline earth metal ions (calcium magnesium ions and the like) and high-valence metal ions (aluminum iron ions and the like) in the reservoir to generate precipitates, and the precipitates are memorized and block seepage channels of the reservoir in a delicate and flowing state, so that the effective permeability of the reservoir is greatly reduced, and secondary damage to the reservoir is brought. The calcium and magnesium ion content in shallow surface water in Gansu area is high, and the calcium and magnesium ion content cannot be directly used for preparing fracturing fluid; meanwhile, the areas are often far away from the fresh water area, and the transportation cost of the water for liquid preparation is high; the construction time of large-scale acid fracturing operation is a course, and the pump can not be stopped midway, but the traditional fracturing truck set configuration and liquid supply method can not ensure stable liquid supply for a long time.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a gansu district calcium magnesium ion fracturing fluid supporting system that exceeds standard to solve current fracturing fluid configuration system and receive calcium magnesium ion to influence big, can not last the problem of stably supplying with.
The utility model discloses a realize like this: a calcium and magnesium ion overproof fracturing fluid matching system in Gansu area comprises a fluid distribution vehicle, wherein the fluid distribution vehicle comprises a cab, a chassis and a carriage;
a mixing tank, an additive feeding device, a water inlet device, a viscous material feeding device and a liquid outlet system are arranged in the carriage, wherein the mixing tank is used for uniformly mixing the materials conveyed by the additive feeding device, the water inlet device and the viscous material feeding device and discharging the materials through the liquid outlet system;
the water inlet device comprises a pipeline communicated with a water source and the mixing tank, a water treatment tank and a buffer tank are sequentially arranged on the pipeline along the water inlet direction, a first water pump is arranged on the pipeline between the water source and the water treatment tank, an electromagnetic valve is arranged on the pipeline between the water treatment tank and the buffer tank, and a second water pump is arranged on the pipeline between the buffer tank and the mixing tank;
two liquid baffles are arranged in the water treatment tank in a vertically staggered manner, a water flow channel is formed between the two liquid baffles, and the two liquid baffles divide the water treatment tank into a settling area and a purifying area; a chemical feeding tank is arranged at the purification area, and a water quality modifier is arranged in the chemical feeding tank; a reverse osmosis filter is arranged between the water treatment tank and the buffer tank.
Preferably, the mixing tank is connected to the additive supply device, the water inlet device, the viscous material supply device, and the liquid outlet system through pipelines, and each of the connecting pipelines is provided with an electromagnetic valve and a liquid pump.
Preferably, a screen is provided in the settling zone.
Preferably, an agitator is provided in the compounding tank.
Preferably, an electric control cabinet is arranged in the carriage.
Preferably, an agitation device is provided within the purification zone.
Preferably, a PH adjusting device is provided in the purification zone.
Adopt above-mentioned technical scheme, the utility model discloses carry out purification treatment to the water before the surface water is thoughtlessly joined in marriage, adopt high-efficient cation chelator, make free calcium in the superficial earth's surface water, magnesium ion content descend, realized adopting superficial surface water configuration fracturing fluid on the spot, saved the loaded down with trivial details link that the liquid was joined in marriage to the well site of long distance transporting domestic water, practiced thrift the cost, usable liquid car of joining in marriage carries out the scene and joins in marriage the liquid, single-well operation preparation cycle is short, supplies the liquid steady.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural view of the water inlet device of the present invention.
In the figure: 1-cab, 2-chassis, 3-carriage, 4-blending tank, 5-additive feeding device, 6-stickness material feeding device, 7-play liquid system, 8-water treatment box, 9-buffer tank, 10-first water pump, 11-solenoid valve, 12-second water pump, 13-fender liquid board, 14-settling zone, 15-purifying zone, 16-medicine adding tank, 17-filter screen, 18-reverse osmosis filter, 19-agitator.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It should be noted that in the description of the present invention, the terms "upper" and "lower" are used for the purpose of describing the structure of the present invention based on the illustration of fig. 1, and are only used for the convenience of describing the present invention, but not for indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention. In the technical scheme, the terms "first" and "second" are only used for referring to the same or similar structures or corresponding structures with similar functions, and are not used for ranking the importance of the structures, or comparing the sizes or other meanings.
In addition, unless expressly stated or limited otherwise, the terms "mounted" and "connected" are to be construed broadly, e.g., the connection may be a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two structures can be directly connected or indirectly connected through an intermediate medium, and the two structures can be communicated with each other. To those skilled in the art, the specific meanings of the above terms in the present invention can be understood in relation to the present scheme in specific terms according to the general idea of the present invention.
As shown in fig. 1 and 2, the utility model provides a fracturing fluid matching system with calcium and magnesium ions exceeding standard in Gansu area, which comprises a fluid distribution vehicle, and is characterized in that the fluid distribution vehicle comprises a cab 1, a chassis 2 and a carriage 3; the utility model discloses be provided with in carriage 3 and mix jar 4, additive feeding device 5, water installations, stickness material feeding device 6 and play liquid system 7.
Because the calcium and magnesium ion content in surface water in Gansu region is high, the preparation of fracturing fluid by directly taking water can affect the dissolving performance of guar gum, the adjustment of the pH value of the fracturing fluid and possibly cause the adverse effect of alkaline substance precipitation. The utility model discloses a water installations is including intercommunication water source and the pipeline of thoughtlessly joining in marriage jar 4, has set gradually water treatment box 8 and buffer tank 9 along the direction of intaking on the pipeline, is provided with first water pump 10 on the pipeline between water source and water treatment box 8, is provided with solenoid valve 11 on the pipeline between water treatment box 8 and buffer tank 9, is provided with second water pump 12 on buffer tank 9 and thoughtlessly joining in marriage the pipeline between jar 4.
Under the effect of first water pump 10, surface water is absorbed to water treatment tank 8 in, and crisscross two fender liquid boards 13 that are provided with about in the water treatment tank 10, form the rivers passageway between two fender liquid boards 13, and two fender liquid boards 13 divide water treatment tank into settling zone 14 and purifying area 15, are provided with in purifying area 15 and add medicinal cupping 16, are provided with the quality of water improver in adding medicinal cupping 16. Preferably, a filter screen 17 is arranged in the settling zone 14, and the surface water is firstly filtered through the filter screen 17 to remove large-particle impurities in the water. The filtered water is left to stand and precipitate in the precipitation zone 14, mineral impurities can be precipitated in the precipitation zone, and the upper layer impurity-removed water flows to the purification zone 15 through the water flow channel.
The utility model discloses a 16 opposite purification district 15 of dosing tank add water quality improver, have adverse effect in view of calcium, the magnesium ion of joining in marriage liquid aquatic to biogel fracturing fluid gelatinization performance, the utility model discloses select the water quality improver who has the chelation as the medicament for use, the chelation is that the chelant takes place the ionization after dissolving in water, generates the molecular chain of taking the electronegativity, and it forms soluble complex or chelate with Ca2+, Mg2+ etc. ion to make the inorganic salt solubility increase, play calcium of eliminating, the magnesium ion becomes the unfavorable effect of biogel. The common chelating agent can be selected from ethylenediamine tetraacetic acid compound, sodium salt of nitrilotriacetic acid, sodium citrate, sodium gluconate, sodium tartrate, sodium glycolate, polyphosphate, etc. In order to make the chelating agent fully react with the surface water, the utility model discloses be provided with agitating unit in purification area 15, carry out intensive mixing to the water. Further, a PH adjusting device may be disposed in the purification area 15 to adjust the PH value of the water body.
Preferably, the utility model discloses be provided with reverse osmosis filter 18 between water treatment tank 8 and surge tank 9. The reverse osmosis filter 18 can further purify calcium and magnesium ions in water, so that the preparation effect of the fracturing fluid is better. Buffer tank 9 is used for receiving the water after purifying and stores, joins in marriage the liquid in-process, absorbs the water through the second water pump and mixes, joins in marriage the liquid state in the non-, closes the second water pump, and the water after the purification gets into and stores in the buffer tank, makes things convenient for next time to join in marriage liquid and uses, shortens and joins in marriage the liquid time, raises the efficiency.
Preferably, the mixing tank 4 is connected to the additive supply device 5, the water inlet device, the viscous material supply device 6, and the liquid outlet system 7 through pipelines, and each of the connecting pipelines is provided with an electromagnetic valve and a liquid pump. The mixing tank 4 is used for uniformly mixing the materials conveyed by the additive feeding device 5, the water inlet device and the viscous material feeding device 6 and discharging the materials through the liquid outlet system 7. A stirrer 19 is provided in the compounding tank 4 for sufficient stirring.
The utility model discloses be provided with automatically controlled cabinet in carriage 3 for control opening and close of each pump valve.
The utility model discloses carry out purification treatment to the water before the surface water is thoughtlessly joined in marriage, adopt high-efficient cation chelator, make free calcium in shallow surface water, magnesium ion content descend, realized adopting shallow surface water configuration fracturing fluid on the spot, saved the loaded down with trivial details link that long distance transported domestic water to well site joined in marriage liquid, practice thrift the cost, usable liquid car of joining in marriage carries out the scene and joins in marriage liquid, and single well operation preparation cycle is short, supplies liquid steadily.
Claims (7)
1. A calcium and magnesium ion overproof fracturing fluid matching system in Gansu area comprises a fluid distribution vehicle, and is characterized in that the fluid distribution vehicle comprises a cab, a chassis and a carriage;
a mixing tank, an additive feeding device, a water inlet device, a viscous material feeding device and a liquid outlet system are arranged in the carriage, wherein the mixing tank is used for uniformly mixing the materials conveyed by the additive feeding device, the water inlet device and the viscous material feeding device and discharging the materials through the liquid outlet system;
the water inlet device comprises a pipeline communicated with a water source and the mixing tank, a water treatment tank and a buffer tank are sequentially arranged on the pipeline along the water inlet direction, a first water pump is arranged on the pipeline between the water source and the water treatment tank, an electromagnetic valve is arranged on the pipeline between the water treatment tank and the buffer tank, and a second water pump is arranged on the pipeline between the buffer tank and the mixing tank;
two liquid baffles are arranged in the water treatment tank in a vertically staggered manner, a water flow channel is formed between the two liquid baffles, and the two liquid baffles divide the water treatment tank into a settling area and a purifying area; a chemical feeding tank is arranged at the purification area, and a water quality modifier is arranged in the chemical feeding tank; a reverse osmosis filter is arranged between the water treatment tank and the buffer tank.
2. The system of claim 1, wherein the blending tank is connected to the additive supply device, the water inlet device, the viscous material supply device, and the fluid outlet system via pipes, and each of the connecting pipes is provided with an electromagnetic valve and a fluid pump.
3. The system of claim 1, wherein a filter screen is arranged in the settling zone.
4. The system of claim 1, wherein a mixer is arranged in the blending tank.
5. The system of claim 1, wherein an electric control cabinet is arranged in the carriage.
6. The system of claim 1, wherein a stirring device is arranged in the purification area.
7. The system of claim 1, wherein a pH adjusting device is arranged in the purification zone.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020840209.XU CN212334858U (en) | 2020-05-19 | 2020-05-19 | Gansu area calcium and magnesium ion standard-exceeding fracturing fluid matching system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020840209.XU CN212334858U (en) | 2020-05-19 | 2020-05-19 | Gansu area calcium and magnesium ion standard-exceeding fracturing fluid matching system |
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| CN212334858U true CN212334858U (en) | 2021-01-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115350619A (en) * | 2022-08-26 | 2022-11-18 | 西安交通大学 | Solid chemical agent fast mixing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115350619A (en) * | 2022-08-26 | 2022-11-18 | 西安交通大学 | Solid chemical agent fast mixing system |
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