Extensive line of high-quality propants (for)
The most advanced and comprehensive application of formation protection technology
comprehensive drilling fluid technology
1, high temperature resistance
Full range of drilling fluid technology for pay zone protection
This technology ensures an optimum protection for foramation zone throughout the entire process of implementation in drilling, logging, and cementing
Technology Roadmap: The modification of drilling fluid (slurry) can be achieved by using the borehole compressive stabilizer (YBWD). Micelle can be formed on the surface of the shallow permeable layer when the modified drilling fluids encountered in oil and gas permeable layer.
Due to its strong adhesion to particular material component and its excellent elastic property, this micelle is actually a membrane barrier with zero permeability that separates the drilling fluid and filtering liquid completely and prevents the diffusion of drilling liquid/solid and filtering liquid to oil/gas zone
Technical Specifications: Sealing membrane can be thickened as the pressure increases until a balanced is reached; the laboratory of Shengli Oilfield Drilling Technology Research Institute has tested the material and the closing pressure can reach 18Mpa (based on the lab evaluation and experimental procedures)
1. Effectively block a large scaled area with pore throat and micro fractured formation. It has a blocking ability for reservoir with different depths and permeability to achieve the best formation protection for oil and gas.
2. When an oil well is in a testing mode or in production, sealing membrane will be discharged into the wellbore under reverse pressure as the wellbore pressure drops. NO action needed.
3. Due to stabilizing effect anti-linkage membrane brings, the application of this technology plays an essential role for the success of the whole drilling process, demonstrating a positive effect for logging and cementing.
4. The product is non-toxic, non-flammable, easy and safe to use.
Usage: add 1.5% to 2.0% YBWD materials in the conventional drilling fluid, fully mix and cured.
Quality Assurance: The product obtained ISO9001 quality certification in 2010
Case results: the technology has been applied in the construction of more than 700 wells in the Shengli Oilfield since 2005,
The best results came from Shengli marine oil exploration and production plant. High production capacity and good reservoir property caused a greater pressure drop in the reservoir, resulting in fluid leakage that seriously affected the production of new wells. After the application of the technology, all wells achieved full protection against fluid leakage; all calipers were in good condition; cementing was completed just in one time. The high quality and performance of new wells received compliments from oil exploration plants and thedrilling crews.
According to the statistics of the Shengli marine plant, this technology has shorten offshore drilling cycles by more than three days, production has been increased significantly, the actual production capacity of these wells will exceed to the expected capacity valuated
In addition to conventional wells, the technology can also be ideal for directional and horizontal wells
1, YBWD-I is suitable when the depth of a well reaches 2,500 meters and above, for temperature up to 170 degree. It can go through 80-mesh shale shaker
2, YBWD-II is suitable when the permeability is higher than 1000mpas and above. This type can successfully go through the 100-mesh shale shaker while blocking high-permeability layers