Multilateral Stimulation Technology (MST) is an open hole liner completion that connects the well and the reservoir without the drawbacks of hydraulic fracturing. The system defines a new level of precision and efficiency in reservoir stimulation. You can vertically connect the reservoir throughout a long well in one short pumping operation. MST operations are simple; Run the reservoir liner string as normal with Dreamliner subs spaced out and set the liner hanger slips. Do you need 50, 100 or 200 laterals? You are in control. Fishbones Method In this method, four laterals are installed from one sub, and multiple subs can be run. Fluid flows through the needles and jets out through the nozzles. A large number of small diameter laterals jet out from the wellbore simultaneously to penetrate the reservoir. Fishbones MST can be used with acid for jetting of carbonates or with non-reactive fluids for other formations. Typically 12 meter (40ft) is achievable penetration, creating real and significant stimulation effects. Dreamliner Method In this method, a large number of small diameter laterals drill out from the wellbore simultaneously to penetrate the reservoir. Dreamliner MST is applicable in consolidated formations like sandstone and shales. Small diameter tubes (needles) are installed with and protected by the liner. Each needle is equipped with a drill bit in the front end and a turbine in the rear end. The laterals drilling in powered by fluid circulation through the liner. Three laterals are installed from one sub, and multiple subs can be run. Typically 10.8 meter (35ft) is achievable penetration, creating real and significant stimulation effects. Why choose Fishbones MST? There are many reasons to choose Fishbones stimulation: Avoid water or unwanted gas by predictable penetration and location of the laterals. Accelerate progress by removing cementing, perforating, cleanouts, running fracstrings and other operations. Simplify logistics by using rig pumps and significantly less fluids Increase productivity by connecting the well to the reservoir with up to 300 laterals. Simulations show very positive productivity response, even compared to hydraulic fracturing. Accelerate production by integrating stimulation in your drilling program. Reduce HSE exposure by reducing the number of operations and man-hours. Reduce the environmental impact by using less fluid. Avoid flow back and disposal of fluid from hydraulic fracturing. Effective reservoir conductivity may be low due to layering or faulting. The layers or faults can be penetrated and drained by Fishbones with the mother bore not even penetrating the faults. Different intervals have different pressures and can be hard to effectively hydraulically stimulate. Fishbones allows you to stimulate zones with different pressure regimes.

Enhanced Alternatives for Dangerous Hydrochloric (HCL) Acids Effective • Safe • Biodegradable • Non-Toxic Earth Friendly • Non-Flammable • Non-Corrosive Features and Benefits of RSUS Oil and Gas Products RSUS products are highly effective and demonstrably superior than 15% HCL at increasing formation permeability. The RSUS’ proprietary system allows for more efficient wormhole generation using unique surface tension relievers and buffers. This allows faster, deeper and longer penetration within the formation using less horsepower. Results are higher flow back, increased production, and cost savings. The pH of RSUS is less than 1 yet completely safe and non-corrosive. RSUS solutions incorporate surface tension relievers that dissolve the material into a molecular level and becomes suspended in the solution. HCL does not have the same properties and does not suspend the particles. In fact, HCL leaves behind a residual substance (residue matter). This residue can decrease conductivity to the well bore through blockage, thus decreasing its effectiveness. RSUS Oil and Gas formulated solutions will work up to 72 times longer than HCL. The increased time of reaction is extremely beneficial for long horizontal injection and wells with multi-stage fractures. RSUS solutions are more viscous (thicker) than HCL. The shear thinning properties of RSUS allows for easier injection. However, once RSUS enters the formation, the fluid becomes more viscous which allows for better formation coverage and creates less fluid loss. Thus increasing its effectiveness over HCL.

One of the most important performances of Radial Jet Drilling (RJD) is to raise the productivity index in oil& gas wells. This technology has adapted a unique approach so that it can be considered as a suitable and cost-effective one in comparison with other methods. In fact, RJD is based on high-pressure water, diesel or acid to be expelled through a high-pressure hose and nozzle to penetrate into the target formation from 10 to 100 meters by creating holes with a diameter of 30-50 millimeters in different directions solely during a few days. This methodology increases the production rate in different parts of the word. The results show that there is a rise of around 300-500 % in the production rate in some cases. Shanghai Witsun Jetdrill Enhancement Services Co., Ltd. is a professional company who provides RJD services. Roham Sperlus Co. is the exclusive agent for the above-mentioned company in this technology in the territory of Iran. RJD Benefits and Applications Short Operation cycle and Cost effective and environmental friendly operation Suitable alternative to conventional perforation and re-perforation methods Acidizing , Steam and CO2 injection in different directions No slurry is needed and no great damage to the layer Increases production rate and recoverable reserves Average operation duration is a few days per well Perforation + Micro - Acid fracturing in one stage Effective in multi - layer thick reservoirs No need to change well bore assembly Natural fracture system activation Applicable in Old and New wells Improve injectivity rate Improve drainage area Less damage to casing RJD + Fracturing

Maximum Efficient Rate of Recovery (MER) within IOR/EOR is one of necessities in petroleum industries. Roham Sperlus Co. is the exclusive agent of the Canadian company of Fracturing Horizontal Well Completions Inc. operating under the tradename of FracKnowledge. Relying on domestic specialists, Roham Sperlus Co . is providing the following services related to the conventional acidizing as well as fracturing to the clients: Review the current acid testing procedure and suggest appropriate updates based on North American standards and compatible with Iranian fields Support pre-job lab test verification, onsite evaluation, and quality control of wells of matrix acidizing and generate a summary report for the project Research and identify new acid additives for matrix acidizing and acid fracturing as well as identify alternative to hydrochloric acid (HCl) Facilitate workshops and teach courses on acidizing and fracturing operations and engineering Review of operations and design of the previous acid fracs Support acid and proppant fracturing design Develop acid frac technology using local equipment or retened international equipment

Among the methods used to clean and remove hydrocarbon contamination, “Biodegradation” of waste products based on biotechnology is very effective and inexpensive compared to other methods. Its foundation on ability of some microorganisms to decompose different waste waters which contain hydrocarbons, polymers, starch, CMC to non-toxic products such as microbial biomass, CO2 and H2O. Bioremediation ( or biological treatment) is using biological systems to remove environmental pollutants that does not cause any danger for humans and ecosystems. The drilling mud is an important component in drilling process. This mixture is used to cooling and reducing friction drill, removing the drilled trunks and transfers them to the surface. There are three types of drilling mud: water-based, oil and polymer based. In addition, gasoline and oil extracted from the washing tower can be dangerous and have toxic effects on marine life ((including plants, animals and microorganisms) and etc. Normally oil wastes should be treated with environmental standards and evacuate under strict condition. In the present treatment method, by inoculated some special strains according to project conditions (including temperature, salinity, PH, etc.), providing growth conditions, adding nutrients and organic carbon can decompose organic compounds and finally reduce BOD5. This method can be performed in both offshore and onshore. This technical knowledge can be used in the oil spill problems (such as pipelines, drilling rigs, and refineries), drilling mud pollution, and oil and ballast water events. Items listed above can cause a variety of environmental pollution. However, by this method can be refined.

Roham Group Profile 2017



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