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Sand consolidation stabilizer
Sand production from oil wells is one of the problems that need to be solved urgently in oilfield development. The main reason for sand production in oil wells is that the reservoir is loose cemented sandstone. In addition, in the middle and late stages of oilfield development, long-term water injection or gas injection production will also greatly damage the reservoir skeleton, resulting in sand production of oil wells. The harm of oil well sand production is mainly manifested in three aspects:
1、 Sand buries the production layer, causing the oil well to reduce or stop production;
2、 High-speed sand particles aggravate the abrasion of underground and surface equipment;
3、 Sand production leads to formation depletion and collapse, resulting in casing damage
Scrap the oil well, etc. In order to solve the problem of sand production in oil wells and ensure normal production, our company has developed sand control and sand consolidation products for different working conditions by taking the advantages of chemical materials, high-performance modified phenols and furan resins as the breakthrough and combining with the actual needs of the oilfield. Sand consolidation mechanism
It refers to the use of chemical methods to squeeze various liquid chemicals into the formation that can make the formation sand bond together to form an artificial well wall with certain permeability and compressive strength around the wellbore to block the movable sand outside the oil well. The newly formed artificial well wall has much greater strength than the formation, and can resist the scouring of fluid flow, thus achieving the purpose of preventing formation sand production. SCA series sand consolidation agent
Performance of sand consolidation agent: alkali resistance value is 35% (technical index requirement ≥ 30), permeability retention value is 75% (technical index requirement ≥ 70), compressive strength value of cemented core is 3.5MPa (technical index requirement ≥ 3.0), and density value is 1.05g/cm 3 Technical index requirements ≥ 0.9), meeting the requirements of technical standards.Performance index of modified resin sand consolidation agent
usage method
In full consideration of geological conditions such as formation permeability, temperature and pressure, after fracturing with non gel fracturing fluid or clean fracturing fluid system, after artificial fracture closure, cement truck is used to inject chemical sand consolidation agent, spacer fluid, curing agent, etc. in sequence at a small displacement, so as to ensure that the pressure during squeezing is less than the rock fracture pressure, so as to prevent the fracture from reopening, and under the effect of curing agent, proppant near the fracture is solidified, So as to prevent sand production after compaction. Safety matters
See the packaging, transportation and storage of various data in MSDS for details
The packaging is 200L plastic bucket or ton bucket, and can also be packaged according to customer requirements to prevent inversion during transportation. Store in a ventilated and cool place to prevent inversion, rain and exposure
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