Synthesis and Properties of Dispersive Type High Temperature Filtrate Reducer Used in Oil Well Cement

Abstract

The advanced dispersive type high temperature filtrate reducer used in oil well cement was synthesized with 2-acryloyl-2-methyl-propyl sulfonic (AMPS) , N, N-dimethylacrylamide (DMAA) and organic acids. When the mass fraction of synthetic filtrate reducer was 1%, the filter loss of the cement slurry was 30ml/30min at 120 °C and 49ml/30min at 150°C respectively, and the cement strength was 25MPa after 24 hours, and the rheological property of the cement slurry was well when the mass fraction of synthetic filtrate reducer was 2%, and liquidity factor was 0.85, and the consistency was 0.43. The results showed that the filtrate reducer had good dispersity and could control the fluid loss efficiently, and the ability of resistance to high temperature and salt resistance was good.

A Review in Polymers for Fluid Loss Control in Drilling Operations

“…[125][126][127] Ma et al developed and synthesized a dispersive filtrate reducer using AMPS, N, N-dimethylacrylamide (DMAA) and organic acid as raw materials. [122] The final experimental test results showed that the synthesized polymer as filtrate reducer exhibited good high-temperature and salt resistance performance, and had good dispersibility, which could significantly reduce filtration loss. Tang et al [123] prepared a new water-soluble polymer as filtrate reducer by free radical copolymerization of AMPS, AA, DMAA, and sodium allyl sulfonate (SAS) as monomers in aqueous solution, as shown in Figure 9.…”

“…In recent years, a large number of studies in the field of design and development of filtrate reducers have shown that AMPS and SSS containing sulfonated polymers have a good prospect in the field of filtrate reducers. [121][122][123] Peng et al [121] developed and synthesized a novel copolymer by inverse emulsion polymerization of SSS, AM and AMPS as monomers. This polymer has an excel-lent thermal stability and good molecular weight distribution.…”

“…developed and synthesized a dispersive filtrate reducer using AMPS, N, N ‐dimethylacrylamide (DMAA) and organic acid as raw materials. [ 122 ] The final experimental test results showed that the synthesized polymer as filtrate reducer exhibited good high‐temperature and salt resistance performance, and had good dispersibility, which could significantly reduce filtration loss. Tang et al.…”