STIMULATION&FRACTURING

Well stimulation is the technical measures to improve the production capacity by eliminating structural damage or to establish a high conductivity in the formation near the wellbore.

Stimulation techniques include fracturing, acidizing and fracturing filling sand, hydraulic oscillation plugging, sonic and ultrasonic scaling wax, electromagnetic wax, microbial enhanced oil recovery technology developed in recent years. The purpose of the technology is increasing production increase or decrease the pressure drop.

Stimulation techniques are used to increase production of both old and new oil and gas wells.  Acidizing and fracturing have been used for years to maximize the rate of production.

With the recent developments in hydraulic fracturing and huge boom in its application, there is a need for new products with improved performance and/or better environmental profiles.  L.E.A.D. has several products under development touse in this market that will be introduced in the near future.



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Aaron Shi

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  • Products
    • FH-CMHPG

      Excellentrheological property of fracturing fluid is the foundation of ensuring the fracture and carrying sandso as to facilitate the fracturingconstructionsuccessfully. The low damage of fracturing fluid can effectively connect the the artificial fracture and formation matrix, reducing the flow resistance and improve the single well production, which are the difficulty an...

      SL-203-Fast-Hydration-Carboxymethyl-Hydroxypropyl-Guar-Gum--FH-CMHPG-

    • Enzyme Breaker

      At present, the fracturing fluid is mainly use oxidizing agent such as Ammonium sulfate (APS) as the main type of breaking agent with a series of advantages of low-cost, easy to use. etc. However, too much negative effects including that chemical pollution, incomplete gel breaking, difficult backflow and the large impact of fracture conductivity after gel breaki...

      SL-EEB-Encapsulated-Enzyme-Breaker
      SL-Y600-Enzyme-Gel-Breaker
      SL-Y600-Liquid-enzyme-breaker-detection

    • CMHPG

      Under the same formation conditions, CMHPG requires lower concentration of dosing, so its water insoluble is accordingly less, and its damage to the fracture conductivity and the metrical permeability is smaller; at the same time, the fluid has good viscoelasticity, strong carrying capacity, low friction and low concentrations for gel breaking, and it is easy for flowback. These features make CMHPG play a very important role in the fracturing of high-temperatu...

      SL-201-Carboxymethyl-Hydroxypropyl-Guar-Gum(CMHPG)
      SL-202-Carboxymethyl-Hydroxypropyl-Guar-Gum-(CMHPG)

    • Surfactant

      In the acidizing operation, not only the formation damage of the near wellbore can be reduced, but the skin effect can be decreased as a result to improve the formation permeability. In the process of acid construction, the residual acid reflux volume is an important factor to affect the construction effect, especially in the case of lower formation energy, poor permeabili...

      SL-GUR-Cleanup-Additive

    • Viscoelastic Diverting Acid

      It is widely believed that, for the heterogeneous reservoir, the conventional diverting acidizing fluid system is usually prefer to penetrate the reservoirs with large pores or high-permeability part. As a result, the low-permeability reservoirs, are hardly contact with the acid, falling the oil field production. In terms of common hydrochloric acid acidification, a...

      SL-VDA
      Rheological-Curve-of-Spent-SL-VDA

    • Iron Control Agent

      According to the data investigation, the formation damage caused by the secondary precipitation of iron ions in oil-gas well water injection as well as acidizing operation is still a potential problem. All the iron ions formed by the acid its carrying, the wall rust corroded by the acid and iron-bearing minerals in the formation could produce iron hydroxide precipitation o...

      SL-IR-High-temperature-Ferric-Ion-Stabilizer

    • Clay Stabilizer/Shale Inhibitor

      Introduction

      Mechanisms of Clay Dispersion

      In migration, clay minerals can be dispersed by contact with a foreign fluid, or they can be entrained by produced fluids and transported until a restriction (normally a pore throat) is encountered where the entrained particles bridge, forming a restriction to the capillary. The mechanism of clays and other fine minerals has been extensively explored in other sources.

      Clay minerals are composed of small crystal structu...

      SL-STB-Clay-Stabilizer
      SL-LSTB-Gemini-Cationic-Surfactant
      SL-LSTB-Indoor-Experimental-Studies
      Performance-Chemicals-for-Stimulation
      L-E-A-D-Clay-stabilizer-technical-requirements

    • Encapsulated gel breaker

      Encapsulated gel breaker is a new kind of gel breaking technology. It is based on one or several common gel breaker as capsule-core and coated on the surface of a layer of waterproof material to become a tiny capsules. It could release breaker slowly and could be used in high concentration without any negative influence.

      Ammonium persulfate is a kind of common gel breaker in ...

      SL-PJ3-Encapsulated-Gel-Breaking-Agent
      L-E-A-D-encapsulated-gel-breaker-technical-requirement

    • Non-Emulsifier

      Water-based fracturing fluids can form emulsions with the residual oil in the formation during or after fracturing or during other stimulation treatments. Such an emulsion can block the fractures and cause formation damage. The main function of a non-emulsification agent is to break such an emulsion in-situ before the stimulated well is put back to production. Another function of the non-emulsifier is to speed up the s...

      SL-FRH-Non-emulsifier

    • Corrosion Inhibitor

      Acidification is one of the most effective technical measures for oil-gas well and water injection well stimulation during the carbonate reservoir development process. However, acid constituted a serious corrosion to the well in the production until 30's in twentieth century that the first batch of corrosion inhibitor was presented. Since then, the acid

      SL-CR-H-High-Temperature-Corrosion-Inhibitor
      SL-CR-M-Mesothermal-Corrosion-Inhibitor
      L-E-A-D--corrosion-inhibitor-technology-requirements

    • Mutual Solvent

      For the reservoir acidification process of sandstone and limestone, a variety of additives, such as corrosion inhibitor, auxiliary agent, iron ion stabilizer, anti-swelling agent, etc. must be added to ensure the smooth progress of the construction as well as to avoid the secondary damage of formation so as to improve the acidification effect, etc. However, the addition of additives has brought about many negative effects, cove...

      SL-MUT-Mutual-Solvent-Acidizing-Agent

    • Acid Emulsifier

      SL-ASP-103

      Product Advantages

      1. The formation of empties acid emulsion to slow the acidity, and penetration into the reservoir in the deeper depth.

      2. Relatively stable emulsion in the backflow and still clean after rupture.

      Function description

      1. SL-ASP-103 for stable acid in oil emulsion, delaying hydrochloric soluble rock in acid. The release of acid can penetrate deeper. Because this form of emulsion is not permanent, so there is no reflow phenome...

      SL-ASP-103-Acid-Emulsifier
      SL-ASP-106-Acid-Emulsifier

    • Friction Reducer

      Friction Reducer--PumpEX FRS-108 is an anionic polyacrylamide designed to reduce friction in water-based fracturing, acidizing, and brine applications. PumpEX FRS-108 is especially effective in high hardness fluid and in fluids with temperatures of 40°F. As a solid powder, it has a short hydration time and can reach the maximum drag reduction in a short time with salt resistant, especially calcium resistance properties. It also...

      Friction-Reducer

    • Foam Agent

      Product introduction

      Foam agent is composed of hydrocarbons amphoteric surface active agent and a small amount of solvent, foaming scrubbing agent with surface active agent of single component, easy biodegradation, and environmental friendly, it with good foam stability, good resistance to salt, good tolerant to methanol, condensate oil resistant performance and low freezing point properties, also it can meet the requirement of different application environment, widely...

      SL-FS-Foam-Scrubbing-Agent

    • Anti-Sludging Agent

      Product Description

      Crude oil containing asphaltenes, resins and paraffin hydrocarbons in molecular weight, these substances may react chemically with acids, even from crude oil, thereby forming a precipitate blockage formation, acidification effects. Global surface 70s with an oil-soluble fatty acids, alkyl phenol, and an amount of an active agent as an acid slag-forming age...

      SL-AS34-Anti-Sludging-Agent-

  • Technical Service

     

  • Quanlity Control

    With mastering of the different standards between international and China domestic, L.E.A.D. has move forward to establish a research and QA/QC centre to control the quality & performance of L.E.A.D.s products and services.

    Moreover, with our owned Lab, L.E.A.D. could customize the specified chemicals or services as your request. With experienced acid and mud engineers, we are going to offer a full package of solutions for all the requirements during the process of drilling, stimulation, acidizing even to the refinery.

    As a supplement, we are willing to cooperate with several third party inspectors such as SGS, BV, also several China domestic petrochemical institute, such as China University of Petroleum. Our vision is to delivery high-performance products to our customers with best quality and highest performance.

  • Our Business
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