Long-acting high-diversion glass bead fracturing propping agent and production method thereof
By using a process to prepare high-strength silicon crystal glass microspheres, the problems of easy oil adhesion and uneven stress on the surface of ceramic proppant have been solved, achieving long-term high conductivity and improved pressure resistance, which is suitable for fracturing operations in oil and gas wells.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 谷春伟
- Filing Date
- 2024-11-11
- Publication Date
- 2026-05-12
AI Technical Summary
Existing ceramsite proppant surfaces are prone to oil adhesion and clogging, have poor compressive strength, cannot meet the construction requirements for long-term high conductivity, and have uneven surface stress.
High-strength silicon crystal glass microspheres are used as proppant. Through the process of sand making, bead forming, grading and distribution production line, high-conductivity glass microsphere fracturing proppant is prepared. The bag filter dust collector recovers fine particles to ensure that there is no significant dust in the workshop.
Glass microspheres have a strong oleophobic surface, their pores are not easily blocked, they are subjected to balanced forces in all directions, and they possess high strength and good toughness, meeting the requirements for long-term flow conduction and pressure resistance, thus improving the production efficiency of oil and gas wells.
Smart Images
Figure CN122012067A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of glass microsphere fracturing proppant, in particular to long-acting high-conductivity glass microsphere fracturing proppant and a production method thereof. BACKGROUND
[0002] The proppant is a key material for fracturing construction, which is mainly used for keeping the opening of hydraulic fractures in oil and gas exploitation, improving the production of oil and gas fields. After the proppant is deposited and arranged in the fractures, it can support the fractures, increase the porosity, improve the permeability, and make the fractures have high conductivity, so as to expand the oil flow channel and reduce the flow resistance of the fluid, thereby achieving the purpose of increasing production.
[0003] The existing proppant generally adopts ceramic particles, and the surface of the ceramic particles is generally smooth, so the oil repellency is not obvious, and the surface of the ceramic particles is easy to be stained with oil. Therefore, the voids of the ceramic particles are easy to be blocked, and the construction demand of long-acting high-conductivity cannot be met. In addition, the shape of the ceramic particles is irregular, and the surface of the ceramic particles is not uniformly stressed, so the compression resistance is poor.
[0004] Therefore, in view of the problems that the construction demand of long-acting high-conductivity cannot be met and the surface is not uniformly stressed, a long-acting high-conductivity glass microsphere fracturing proppant can be designed. SUMMARY
[0005] In order to overcome the problems that the construction demand of long-acting high-conductivity cannot be met and the surface is not uniformly stressed.
[0006] The technical scheme of the present application is: long-acting high-conductivity glass microsphere fracturing proppant, comprising high-strength silicon crystal glass microspheres.
[0007] Preferably, the particle size of the high-strength silicon crystal glass microspheres is 20-140 mesh.
[0008] The production method of the long-acting high-conductivity glass microsphere fracturing proppant comprises the long-acting high-conductivity glass microsphere fracturing proppant as described above, and the steps are as follows:
[0009] S1: The raw materials are sent to the sand production line, and the raw materials are made into glass sand and then sent to the bead production line. A bag-type dust collector is added to the workshop where the sand production line is located to recover small particles.
[0010] S2: The glass sand is made into glass microspheres in the bead production line, and the glass microspheres are sent to the grading production line after cooling.
[0011] S3: The grading production line grades the glass microspheres, and then sends them to the collection and distribution production line. The finished high-strength silicon crystal glass microspheres are stored in the warehouse. Dust removal devices are also provided on the grading production line and the collection and distribution production line.
[0012] As a preferred embodiment, the sand making production line includes a glass silo, a first electromagnetic feeder, a first linear screen, a sorting room, a glass sorting machine, a glass conveyor, a second electromagnetic feeder, a crusher, a first elevator, a second linear screen, a glass sand silo, glass sand ton bags, and an elevator silo.
[0013] The working steps are as follows: the raw material enters the glass silo, the first electromagnetic feeder is started, the raw material falls onto the first linear screen, the screened raw material enters the glass sorting machine in the sorting room, the sorted raw material is sent into the lifting silo through the glass conveyor, the second electromagnetic feeder is turned on, the raw material is evenly fed into the crusher, the crushed raw material is sent into the second linear screen through the first elevator for screening, and the screened glass sand is loaded into glass sand ton bags through the glass sand silo.
[0014] As a preferred embodiment, the pearl forming production line includes a low-level silo, a second elevator, a high-level silo, a pearl forming furnace, a gas-liquid separator, a cooling auger, a third linear screen, a ton bag, a circulating water pump, a circulating water pool, a cyclone separator, and a first induced draft fan.
[0015] The working steps are as follows: Glass sand transported from the sand making production line is sent to the high-level silo via the low-level silo and the second elevator, and then enters the bead forming furnace for firing. After firing, the glass microspheres are cooled by the cooling auger and then screened by the third linear screener. They are then loaded into ton bags. The humid air in the bead forming furnace is separated by the gas-liquid separator. The gas is discharged and the liquid returns to the circulating water pool and is then pumped back into the bead forming furnace. The dust in the bead forming furnace is extracted by the first induced draft fan and discharged after being separated by the cyclone separator.
[0016] As a preferred option, the grading production line includes a semi-finished product silo, a third elevator, a screening silo, a first demagnetizer, a fourth linear screening machine, and a belt scale;
[0017] The working steps are as follows: the glass microspheres enter the third elevator through the semi-finished product silo, then enter the screening silo and are demagnetized by the first demagnetizer, and then the glass microspheres are screened in the fourth linear screening machine. Glass microspheres of different specifications enter different belt scales respectively.
[0018] As a preferred option, the assembly and distribution production line includes a feeding silo, a fourth elevator, a mixer, a mixing silo, a second demagnetizer, a finished product silo, finished product ton bags, and a weighing scale;
[0019] After screening, the glass microspheres are fed from the feed hopper to the mixer via the fourth elevator, then enter the mixing hopper, are demagnetized by the second demagnetizer, and then enter the finished product hopper. Finally, they are loaded into finished product ton bags and weighed by a weighing scale.
[0020] Preferably, the dust removal device includes a dust collector and a second induced draft fan; the dust collector is connected to the semi-finished product silo, the fourth linear screening machine and the finished product silo via pipelines.
[0021] The working steps are as follows: the dust in the semi-finished product silo, the fourth linear screen and the finished product silo is extracted by the second induced draft fan and then removed by the dust collector.
[0022] As a preferred option, the raw material is waste broken glass; the glass sand produced by the sand making production line has a particle size of 109-830μm.
[0023] The beneficial effects of this invention are as follows: As a proppant for fracturing oil and gas wells, it can meet the pressure-bearing strength requirements under various geological conditions at different depths, has stronger chemical stability, and the acid and alkali resistance of the silicon crystal glass material is more stable and durable. Because the surface smoothness of glass microspheres is much higher than that of ceramic particles, its oil repellency is significantly stronger, and its surface is not easily contaminated with oil. The gaps between glass beads are not easily blocked, resulting in better long-term conductivity and significantly improved production efficiency. Because the sphericity and shape of glass microspheres are more regular, the stress in all directions is more balanced, and the environmental pressure resistance is better. Glass microspheres have better flow properties, which facilitates construction operations. Glass microspheres have advantages such as high strength, high hardness, good toughness, wear resistance, water resistance, high temperature resistance, corrosion resistance, acid and alkali resistance, high insulation, and excellent chemical stability.
[0024] Using recycled waste glass as raw material to produce glass microspheres effectively implements the basic national policy of developing a circular economy, building a conservation-oriented society, and achieving environmental and social sustainable development. The particle size requirement for glass sand is mainly 109-830 micrometers. There is basically no dust in the firing workshop and product collection and distribution workshop. The glass sand preparation and processing workshop has added a bag filter to recover fine particles, so there is basically no obvious dust in the workshop and there is basically no dust emission to the outside. Attached Figure Description
[0025] Figure 1 The diagram shows a process flow diagram of the production method of the long-lasting, high-conductivity glass microsphere fracturing proppant of the present invention.
[0026] Figure 2 The diagram shown is a plan view of the sand preparation production line in the production method of the long-lasting, high-conductivity glass microsphere fracturing proppant of the present invention.
[0027] Figure 3 The diagram shown is a plan view of the bead-forming production line in the production method of the long-lasting, high-conductivity glass microsphere fracturing proppant of the present invention.
[0028] Figure 4 The diagram shows a plan view of the graded production line, the collection and distribution production line, and the dust removal device in the production method of the long-lasting high-conductivity glass microsphere fracturing proppant of the present invention.
[0029] Explanation of reference numerals in the attached figures:
[0030] Sand making production line: 101. Glass silo; 102. First electromagnetic feeder; 103. First linear screen; 104. Sorting room; 105. Glass sorting machine; 106. Glass conveyor; 107. Second electromagnetic feeder; 108. Crusher; 109. First elevator; 110. Second linear screen; 111. Glass sand silo; 112. Glass sand ton bag; 113. Lifting silo;
[0031] Bead forming production line: 201, low-level silo; 202, second elevator; 203, high-level silo; 204, bead forming furnace; 205, gas-liquid separator; 206, cooling auger; 207, third linear screen; 208, ton bag; 209, circulating water pump; 210, circulating water tank; 211, cyclone separator; 212, first induced draft fan;
[0032] Grading production line: 301, semi-finished product silo; 302, third elevator; 303, screening silo; 304, first demagnetizer; 305, fourth linear screen; 306, belt scale;
[0033] Distribution production line: 401, feeding hopper; 402, fourth elevator; 403, mixer; 404, mixing hopper; 405, second demagnetizer; 406, finished product hopper; 407, finished product ton bags; 408, weighing scale;
[0034] Dust removal devices: 501, dust collector; 502, second induced draft fan. Detailed Implementation
[0035] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0036] Please see Figures 1-4 The present invention provides an embodiment of a long-lasting, high-conductivity glass microsphere fracturing proppant, comprising high-strength silicon crystal glass microspheres.
[0037] Preferably, the particle size of the high-strength silicon crystal glass microspheres is 20–140 mesh.
[0038] A method for producing a long-lasting, high-conductivity glass microsphere fracturing proppant, comprising the long-lasting, high-conductivity glass microsphere fracturing proppant as described above, and comprising the following steps:
[0039] S1: Raw materials are fed into the sand making production line. After the raw materials are made into glass sand, they are sent to the bead making production line. The workshop where the sand making production line is located has added a bag dust collector to recover fine particles.
[0040] S2: Glass sand is made into glass microspheres in the beading production line, and the glass microspheres are cooled and sent to the grading production line.
[0041] S3: The grading production line grades the glass microspheres and then sends them to the distribution production line. The finished high-strength silicon crystal glass microspheres are then stored in the warehouse. Dust removal devices are also installed on the grading and distribution production lines.
[0042] Please see Figures 2-3 In this embodiment, the sand making production line includes a glass silo 101, a first electromagnetic feeder 102, a first linear screen 103, a sorting room 104, a glass sorting machine 105, a glass conveyor 106, a second electromagnetic feeder 107, a crusher 108, a first elevator 109, a second linear screen 110, a glass sand silo 111, a glass sand ton bag 112, and an elevator silo 113.
[0043] The working steps are as follows: the raw material enters the glass silo 101, the first electromagnetic feeder 102 is started, the raw material falls onto the first linear screen 103, the screened raw material enters the glass sorter 105 in the sorting room 104, the sorted raw material is sent into the lifting silo 113 through the glass conveyor 106, the second electromagnetic feeder 107 is turned on, and the raw material is evenly fed into the crusher 108. The crushed raw material is sent into the second linear screen 110 through the first elevator 109 for screening, and the screened glass sand is loaded into the glass sand ton bag 112 through the glass sand silo 111.
[0044] The pearl forming production line includes a low-level silo 201, a second elevator 202, a high-level silo 203, a pearl forming furnace 204, a gas-liquid separator 205, a cooling auger 206, a third linear screen 207, a ton bag 208, a circulating water pump 209, a circulating water pool 210, a cyclone separator 211, and a first induced draft fan 212;
[0045] The working steps are as follows: Glass sand transported from the sand making production line is sent to the high-level silo 203 via the low-level silo 201 and the second elevator 202, and then enters the bead forming furnace 204 for firing. After firing, the glass microspheres are cooled by the cooling auger 206 and then screened by the third linear screen 207, and then loaded into the ton bag 208. The humid air in the bead forming furnace 204 is separated by the gas-liquid separator 205. The gas is discharged and the liquid returns to the circulating water pool 210 and is returned to the bead forming furnace 204 by the circulating water pump 209. The dust in the bead forming furnace 204 is extracted by the first induced draft fan 212 and discharged after being separated by the cyclone separator 211.
[0046] Please see Figure 4 In this embodiment, the grading production line includes a semi-finished product silo 301, a third elevator 302, a screening silo 303, a first demagnetizer 304, a fourth linear screening machine 305, and a belt scale 306.
[0047] The working steps are as follows: the glass microspheres enter the third elevator 302 through the semi-finished product silo 301, and then enter the screening silo 303 for demagnetization by the first demagnetizer 304. Then the glass microspheres are screened in the fourth linear screening machine 305, and glass microspheres of different specifications enter different belt scales 306 respectively.
[0048] The assembly and distribution production line includes a feeding hopper 401, a fourth elevator 402, a mixer 403, a mixing hopper 404, a second demagnetizer 405, a finished product hopper 406, finished product ton bags 407, and a weighing scale 408.
[0049] After screening, the glass microspheres are fed from the feeding hopper 401 to the mixer 403 via the fourth elevator 402, and then enter the mixing hopper 404. After being demagnetized by the second demagnetizer 405, they enter the finished product hopper 406 and are finally loaded into finished product ton bags 407 and weighed by the weighing scale 408.
[0050] The dust removal device includes a dust collector 501 and a second induced draft fan 502; the dust collector 501 is connected to the semi-finished product silo 301, the fourth linear screening machine 305 and the finished product silo 406 through pipelines.
[0051] The working steps are as follows: the dust in the semi-finished product silo 301, the fourth linear screen 305 and the finished product silo 406 is extracted by the second induced draft fan 502 and then removed by the dust collector 501.
[0052] As a preferred option, the raw material is waste broken glass; the glass sand produced by the sand making production line has a particle size of 109-830μm.
[0053] The steps for performing the work are as follows:
[0054] S1: Raw materials are fed into the sand making production line. After the raw materials are made into glass sand, they are sent to the bead making production line. The workshop where the sand making production line is located has added a bag dust collector to recover fine particles.
[0055] Raw materials enter the glass silo 101. The first electromagnetic feeder 102 is activated, and the raw materials fall onto the first linear screen 103. The screened raw materials enter the glass sorter 105 in the sorting room 104. The sorted raw materials are sent to the lifting silo 113 via the glass conveyor 106. The second electromagnetic feeder 107 is activated, and the raw materials are evenly fed into the crusher 108. The crushed raw materials are sent to the second linear screen 110 via the first elevator 109 for screening. The screened glass sand is then loaded into the glass sand ton bag 112 via the glass sand silo 111.
[0056] S2: Glass sand is made into glass microspheres in the beading production line, and the glass microspheres are cooled and sent to the grading production line.
[0057] Glass sand transported from the sand making production line is fed into the high-level silo 203 via the low-level silo 201 and the second elevator 202, and then enters the bead forming furnace 204 for firing. After firing, the glass microspheres are cooled by the cooling auger 206 and then screened by the third linear screen 207, and then loaded into ton bags 208. The humid air in the bead forming furnace 204 is separated by the gas-liquid separator 205. The gas is discharged and the liquid returns to the circulating water pool 210, and then returns to the bead forming furnace 204 via the circulating water pump 209. The dust in the bead forming furnace 204 is extracted by the first induced draft fan 212, and then discharged after being separated by the cyclone separator 211.
[0058] S3: The grading production line grades the glass microspheres and then sends them to the collection and distribution production line. The finished high-strength silicon crystal glass microspheres are put into storage. Dust removal devices are also installed on the grading production line and the collection and distribution production line.
[0059] Glass microspheres enter the third elevator 302 through the semi-finished product silo 301, and then enter the screening silo 303 for demagnetization by the first demagnetizer 304. Then, the glass microspheres are screened in the fourth linear screening machine 305, and glass microspheres of different specifications enter different belt scales 306 respectively.
[0060] After screening, the glass microspheres are fed from the feeding hopper 401 to the mixer 403 via the fourth elevator 402, and then enter the mixing hopper 404. After being demagnetized by the second demagnetizer 405, they enter the finished product hopper 406 and are finally loaded into finished product ton bags 407 and weighed by the weighing scale 408.
[0061] The dust in the semi-finished product silo 301, the fourth linear screen 305, and the finished product silo 406 is extracted by the second induced draft fan 502 and then removed by the dust collector 501.
[0062] Through the above steps, the compressive strength requirements under various geological conditions at different depths can be met. The silicon crystal glass material has more stable and durable acid and alkali resistance, the surface is not easy to get oily, the gaps between the glass beads are not easy to be blocked, the long-term flow capacity is better, the force in all directions is more balanced, the environmental pressure resistance is better, the glass microspheres have better flow performance, and the construction operation is easier to solve the problems of not being able to meet the construction needs of long-term high flow and uneven surface force.
[0063] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. A long-lasting, high-conductivity glass microsphere fracturing proppant, characterized in that: Including high-strength silicon crystal glass microspheres.
2. The long-lasting, high-conductivity glass microsphere fracturing proppant according to claim 1, characterized in that: The particle size of high-strength silicon crystal glass microspheres is 20–140 mesh.
3. A method for producing long-lasting, high-conductivity glass microsphere fracturing proppant, characterized in that... The long-lasting, high-conductivity glass microsphere fracturing proppant according to claim 1 comprises the following steps: S1: Raw materials are fed into the sand making production line. After the raw materials are made into glass sand, they are sent to the bead making production line. The workshop where the sand making production line is located has added a bag dust collector to recover fine particles. S2: Glass sand is made into glass microspheres in the beading production line, and the glass microspheres are cooled and sent to the grading production line. S3: The grading production line grades the glass microspheres and then sends them to the distribution production line. The finished high-strength silicon crystal glass microspheres are then stored in the warehouse. Dust removal devices are also installed on the grading and distribution production lines.
4. The method for producing long-lasting, high-conductivity glass microsphere fracturing proppant according to claim 3, characterized in that: The sand making production line includes a glass silo (101), a first electromagnetic feeder (102), a first linear screen (103), a sorting room (104), a glass sorting machine (105), a glass conveyor (106), a second electromagnetic feeder (107), a crusher (108), a first elevator (109), a second linear screen (110), a glass sand silo (111), glass sand ton bags (112), and an elevator silo (113); The working steps are as follows: the raw material enters the glass silo (101), the first electromagnetic feeder (102) is started, the raw material falls onto the first linear screen (103), the screened raw material enters the glass sorter (105) in the sorting room (104), the sorted raw material is sent into the lifting silo (113) through the glass conveyor (106), the second electromagnetic feeder (107) is turned on, and the raw material is evenly fed into the crusher (108). The crushed raw material is sent into the second linear screen (110) through the first elevator (109) for screening, and the screened glass sand is loaded into the glass sand ton bag (112) through the glass sand silo (111).
5. The method for producing long-lasting, high-conductivity glass microsphere fracturing proppant according to claim 3, characterized in that: The bead-forming production line includes a low-level silo (201), a second elevator (202), a high-level silo (203), a bead-forming furnace (204), a gas-liquid separator (205), a cooling auger (206), a third linear screen (207), a ton bag (208), a circulating water pump (209), a circulating water pool (210), a cyclone separator (211), and a first induced draft fan (212); The working steps are as follows: Glass sand transported from the sand making production line is sent to the high-level silo (203) through the low-level silo (201) and the second elevator (202), and then enters the bead forming furnace (204) for firing. After firing, the glass microspheres are cooled by the cooling auger (206) and then screened by the third linear screen (207), and then loaded into ton bags (208). The humid air in the bead forming furnace (204) is separated by the gas-liquid separator (205), the gas is discharged, and the liquid returns to the circulating water pool (210), and then returns to the bead forming furnace (204) by the circulating water pump (209). The dust in the bead forming furnace (204) is extracted by the first induced draft fan (212), and discharged after being separated by the cyclone separator (211).
6. The method for producing long-lasting, high-conductivity glass microsphere fracturing proppant according to claim 3, characterized in that: The grading production line includes a semi-finished product silo (301), a third elevator (302), a screening silo (303), a first demagnetizer (304), a fourth linear screening machine (305), and a belt scale (306); The working steps are as follows: the glass microspheres enter the third elevator (302) through the semi-finished product silo (301), and then enter the screening silo (303) for demagnetization by the first demagnetizer (304). Then the glass microspheres are screened in the fourth linear screening machine (305), and glass microspheres of different specifications enter different belt scales (306).
7. The method for producing long-lasting, high-conductivity glass microsphere fracturing proppant according to claim 6, characterized in that: The assembly and distribution production line includes a feeding silo (401), a fourth elevator (402), a mixer (403), a mixing silo (404), a second demagnetizer (405), a finished product silo (406), finished product ton bags (407), and a weighing scale (408); After screening, the glass microspheres are fed from the feed hopper (401) to the mixer (403) via the fourth elevator (402), and then enter the mixing hopper (404). After being demagnetized by the second demagnetizer (405), they enter the finished product hopper (406) and are finally loaded into finished product ton bags (407) and weighed by the weighing scale (408).
8. The method for producing long-lasting, high-conductivity glass microsphere fracturing proppant according to claim 7, characterized in that: The dust removal device includes a dust collector (501) and a second induced draft fan (502); the dust collector (501) is connected to the semi-finished product silo (301), the fourth linear screen (305) and the finished product silo (406) through pipelines; The working steps are as follows: the dust in the semi-finished product silo (301), the fourth linear screen (305) and the finished product silo (406) is extracted by the second induced draft fan (502) and then removed by the dust collector (501).
9. The method for producing long-lasting, high-conductivity glass microsphere fracturing proppant according to claim 3, characterized in that: The raw material is waste broken glass; the glass sand produced by the sand making production line has a particle size of 109-830μm.