دات نت نیوک
X
Description

Acidizing is one of the oldest techniques in good stimulation processes still being used today. Acids play a key role in boosting production or increasing injectivity in oil and gas fields. Modern acid stimulation systems can be controlled and targeted to achieve specific aims for the asset team. In the case of treating formation damage, acid removes flow-restricting particles, scale deposits, and minerals in the reservoir or in the immediate wellbore vicinity. The acid mixture holds the dissolved substance in solution until it is either removed from the well system or overflushed a safe distance into the formation; then, the well can produce at its natural potential. Matrix stimulation involves pumping acids, solvents, or other treatment chemicals into the formation at less than the reservoir fracture pressure. Matrix stimulation methods can be applied in clastic or carbonate rocks. It is designed to remove or bypass damage in the pore spaces and to leave the zone barriers intact. In sandstones, matrix treatments are used to restore or

improve the natural formation permeability around the wellbore by removing formation damage. This is accomplished by dissolving material that is plugging the pores or by enlarging the pore spaces. In carbonates, matrix stimulation creates new, highly conductive channels (wormholes) that bypass the damage. Because of these different requirements, the selection criteria for the treating fluid are also distinct. For sandstone rocks, it is vital that the stimulation engineer understands the extent, type, location, and origin of the damage, the reservoir mineralogy, and the compatibility of the treating fluid with the formation. In carbonate treatments, reservoir temperature, pumping rate, and fluid type become more significant because these parameters have a direct influence on the reaction between the treating fluid and the reservoir rock.

Irdp stimulation team, having numerous experiences in matrix acidizing services, is ready to provide your esteem company with qualitative technical proposal and the service.
  • Chemicals & Additives
  • Service Equipment

Matrix Acidizing-Self-Diverting Acid System-TPSDA®

TPRAS® can be applied in clastic or carbonate rocks to reduce the mass transfer of acid at the fracture wall. It is designed to remove or bypass damage in the pore spaces and to leave the zone barriers intact. Mainly to clean up the high-permeability channels and minimize fluid loss in the lower permeability matrix. TPRAS® is a low-corrosion, slow-reacting system with a wide variety of applications, developed to effectively viscosify 15% HCL and 25% HCL on basis material formed by cationic unsaturated monomer and acrylamide copolymer. TPRAS® high-temperature system has excellent characteristics such as high temperature resistance, sound inhibition of corrosion as well as low filtration and low friction, satisfying the requirements of acidizing the high-temperature formation of 180℃.

BENEFITS

  •   Deeper live-acid penetration during acid fracturing stimulation
  •   Automatical diverter under formation situation
  •   “Stiffen, Retard, Loss control , Less damage”
  •   Fit for thick inhomogeneous layer and multi-layer reservoir acid
  •   Formation and fluid compatibility
  •   Low viscosity and low surface tension, extremely easily flow back
  •   Extremely simple recipe and easily-operated mixing on the fly
Item Specifications Item Specifications
Density,g/cm3 1.0~1.1 Static filtration coefficient, m/min0.5 ≤5×10-4
Apparent Viscosity, mPa.s (120℃) ≥ 30 Emulsion Breaking rate,% ≥95
Corrosion Rate, g/m2.h ≤0.9 Surface Tension of Gel-Break Fluid, mN/m ≤21.0
Retarding Rate,% (90℃,10min) ≥90 Interfacial Tension,mN/m ≤1.0
Capability of stablizing Fe ion, mg/L ≥10000 Core Damage rate,% ≤20

Matrix Acidizing-Emulsified Acid System-TPEAS®

TPEAS® emulsified acid is a viscous, highly retarded HCl system designed to overcome acid penetration problems while stimulating reservoirs above 75 F°. Standard hydrochloric acid reacts very quickly in carbonate formations. The reaction is so rapid in high temperatures so that it is impossible for acid to penetrate, or creates wormhole, longer than a few inches into the formation. In such cases, the acid is rendered ineffective to stimulate the well. The HT TPEAS® acid retards the acid reaction rate, enabling deep, live-acid penetration. This oil-external emulsion is formed with a 70:30 HCl-to-oil ratio, stabilized with an emulsifier. HCl concentrations ranging from 7.5 to 28% may be used in either a batch or continuous mix system.

BENEFITS

  •   Improves damage bypass via deeper wormhole penetration in HT wells
  •   Deeper live-acid penetration during matrix acidizing stimulation.
  •   Extremely good corrosion inhibition property
  •   High degree of retardation
  •   Leak-off control efficiency
  •   Formation and fluid compatibility
Item Specifications Item Specifications
Density,g/cm3 1.0~1.1 Static filtration coefficient, m/min0.5 ≤5×10-4
Apparent Viscosity, mPa.s (120℃) ≥ 80 Surface Tension of Gel-Break Fluid, mN/m ≤21.0
Corrosion Rate, g/m2.h ≤0.9 Interfacial Tension,mN/m ≤1.0
Retarding Rate,% (90℃,10min) ≥90 Core Damage rate,% ≤20
Capability of stablizing Fe ion, mg/L ≥10000 - -/td>
GENERAL ADDITIVE INFORMATION
Acidizing Fluid Hydraulic Fracture Fluid Acid Fracture Fluid Acidizing Fluid Hydraulic Fracture Fluid Acid Fracture Fluid
Corrosion Inhibitor Gelling Agent Friction Reducer Corrosion Inhibitor Gelling Agent Friction Reducer
Iron Control Agent pH Buffer Corrosion Inhibitor Surfactant Non-Emulsifier Clay Stabilizer
Anti-Slug Agent Surfactant Diverting Agent Flow Back Agent Crosslinker Non-Emulsifier
Emulsified  Agent Flow Back Agent Gelling Agent H2S Inhibitor Biocide Crosslinker
Clay Stabilizer Gel Breaker Iron Control Agent Clay Stabilizer Gel Breaker Iron Control Agent
Non-Emulsifier Clay Stabilizer Anti-Slug Agent - Foaming Agent Surfactant
Surfactant Non-Emulsifier Clay Stabilizer - De-Foaming Agent Flow Back Agent
Flow Back Agent Crosslinker Non-Emulsifier - - H2S inhibitor

Acidizing is one of the oldest techniques in good stimulation processes still being used today. Acids play a key role in boosting production or increasing injectivity in oil and gas fields. Acidizing is one of the oldest techniques in good stimulation processes still being used today.

About Us

Iranian Refinement development premier is specialized in providing a complete line of drilling and well completion downhole tools, well hydraulic and acid fracturing downhole tools, oilfield equipment and facilities and most of well engineering services. To meet high expectation of clients in Middle East, Irdp has dedicated its upmost effort to deliver equipment, services and solutions that improve customers’ performance.

 + More Information

Contact us
  •  phone: +98 21 228 15761
  •  Fax:+98 21 228 15346
  •  Adress: Unit 401, Laleh Alley, Qasemi (North Golestan) St., Movahed Danesh St., Aghdasiye. Tehran, Iran
  •  Email:  Info@tpselect.com