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Displacement and Profile Control Agent YL-05 of High-temperature Salt-resistant Gel Particle
Scope of Application 

It applies to deep profile control and displacement control of water injection well of high temperature (≤ 115°C) and high salinity (mineralization degree ≤ 20×104mg/L), as well as temporary plugging of oil well.

Principles 
Displacement and profile control agent YL-05 of high-temperature salt-resistant gel particle is a specially treated high-molecular polymer, which is polymerized and crosslinked by heat- and salt-resistant monomer and active heat-resistant material etc. It can effectively plug the highly permeable layer in water injection well by means of deformation and water absorption; it can also form movable driving zone and expand water-driven swept area. 
 

Technical Indicators(Q/HDJYV 033-2013) 

Item

Indicator

Appearance

Gel particle

Density(20), g/cm3     ≤

1.40

Solid content, %    ≥

30.0

Expansion times (90°C controllable), times      ≥

3

Thermal endurance (90±5°C)

Integrated particle

Salt resistance (20×104mg/L)

Integrated particle

 

Performance Features

1.Adjustable particle diameter can meet the needs of various stratums in terms of stratum temporary-plugging, profile control and displacement control. 
2.Expansion times: 3-15, which can be selected according to actual conditions of service well. 
3.Expansion speed: adjustable between 180 min to 7200 min. 
 
Field Applications
Since 2005, this technique has been widely used in Zhongyuan Oilfield, Changqing Oilfield and Yanchang Oilfield etc. with accumulated 458 wells/times implementations and 200-700t of average increased production of single well, creating good economic benefit.