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Performance Research of Copolymer AM/AMPS/DMC Drop Filter Lost Agent in Drilling Fluid

Author: ZhangJunLi
Tutor: XinYinChang
School: Shandong Normal University
Course: Physical and chemical
Keywords: Drilling fluid Filtrate Reducer AM / AMPS / DMC copolymer Fluid loss
CLC: TE254
Type: Master's thesis
Year: 2011
Downloads: 192
Quote: 0
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Abstract


Zwitterionic polymer drilling fluid system has a coordinating role is one of the factors of the drilling fluid system stability. The zwitterionic polymers prepared by the synthesis is based on the need for high temperature resistance, high salinity of drilling fluid system. The performance of composites based on application performance drilling fluid design. Zwitterionic polymer drilling fluid system, mechanism and synthetic basis. Preparation of resistance to various properties of the drilling fluid system and discuss the synergy effect between the the preparation principle and substance. The drilling fluid is the general term for the process of oil and gas drilling drilling work needs with its variety of functions to meet a variety of circulating fluid. Drilling fluid known as drilling mud, or simply referred to as slurry. The drilling fluid technology is an important part of the oil and gas drilling projects. Sham Tseng and high temperature wells drilling, drilling fluid filtrate invaded the formation caused by shale hydration expansion, leading to severe wellbore instability and a variety of downhole drilling production layer can also cause reservoir damage. The purpose of fluid loss additive was added to by the formation of low permeability on the borehole wall, flexible, thin, dense cake, as far as possible to reduce the amount of fluid loss of the drilling fluid. The first chapter is the Introduction. Reviewed recent research of drilling fluids and fluid loss additive. The second chapter describes the preparation and application of Uzbekistan Fergana oil fields in a block deep wells, high temperature wells, a density of salinity are applicable to the drilling fluid system, and in this process fluid loss additive function; through the formulation screening and field application experiments, the preparation of the drilling fluid system by rheology and fluid loss in the high-temperature aging stable and able to meet the requirements of deep drilling; less saturated in salt content to a nearly saturated within the scope of (19% -29%), drilling fluid rheological properties and fluid loss through the high-temperature aging stability, recipe salt, gypsum pollution are strong, able to meet the need for drilling of salt-gypsum; formulations selective joined the resistance to hydrogen sulfide pollution basic zinc carbonate, to join the agent the formula stable performance; recipe cuttings recovery (R) ≥ 75%. Chapter try to AM / AMPS / DMC as raw material synthesized by the condensation reaction of a zwitterionic polymer drilling fluid loss additive polymer in different densities of high temperature and high pressure loss in the high temperature and high pressure drilling fluid, determine the amount of the polymer initiator. The following major elements, research a fluid loss additive synthesis, and the synthetic conditions; 2, heat resistance, salt tolerance test, and the filtrate reducer Determination, synthetic copolymer discussed; 3, the experiment proved, synthetic fluid loss additive has a certain resistance to temperature and salt. In summary drawn, AM / AMPS / DMC polymer a certain fluid loss ability, synthetic copolymers cheaper and to play better performance in the drilling fluid, and applied to the site in the future work, I hope, to make products to promote the use.

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CLC: > Industrial Technology > Oil and gas industry > Drilling engineering > Wash wells, cementing,completion,reservoir damage and prevention > Use and disposal of drilling fluid
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