GEOSYNTHESIS ENGINEERING

Development and service of drilling fluid

Polymer-lignosulfonate stabilizing agent of fresh water and inhibited drilling mud, polymer basis for circulation systems P-HKR. ТУ У 24.1-23557449-002:2006

BASIC PHYSICAL PROPERTIES:

  • General characterization:: Condensed lignosulfonate-acrylic agent;
  • Water solubility: 100%;
  • Appearance of the ready-to-use reagent: Viscous dark-brown fluid with a faint specific smell;
  • Solids content in the reagent: 25%;
  • Reagent density: 1110-1150 kg / m3;
  • pH: 7,0-8.0;

SCOPE AND APPLICATION

  • Lignopol - fresh reagent stabilizer and inhibited drilling fluids and muds medium mineralization (16-18%);
  • Lignopol compatible with all conventional chemical reagents used in drilling;
  • The content of the drilling fluid in the reagent is in the range:
  • in BRNSTF - 5-6%;
  • in inhibited and mineralized - 15-20%.

ADVANTAGES

  • Lignopol has a high stabilizing effect. In systems inhibited drilling fluids Lignopol reagent consumption by at least 30% lower than traditional CSSC (KLST).
  • Heat resistance Lignopol reagent system solution is inhibited at the level of 140-150 °C. The effectiveness of the reagent Lignopol at high temperatures is illustrated in the table

 

Composition of solutionFiltration of the solution, cm3 / 30 min.
after processingafter incubation
85°С120°С140°С160°С
1 Xcr: water + 10% bentonite+5% КСl+2% CaSO4 >40 - - - -
2 № 1+30% CLST (Lokhvitca) 6 16 32 - -
3 № 1+30% Leegnopol 3 3 4 5 13,5

 

  • Compared with the CSSC, Lignopol exhibits a significantly lower foaming ability, and causes no dispersion cuttings.
  • Compared with organic inhibitors like AbramiX®, Lignopol exhibits greater resistance to salts of polyvalent metals and has minimal impact on the rheological properties of drilling fluids.
  • Application Technology Lignopol agent for the treatment of drilling fluids, similar to the traditional Ukrainian technologies CSSC, and does not require special training of staff.

RESTRICTIONS

  • Efficacy reagent Lignopol reduced when the content of polyvalent metal ions in the filtrate of washing liquid level exceeding 0.12%. At a higher content of polyvalent ions before application Lignopol reagent, additional processing is necessary to make soda ash mud.
  • When the primary processing of drilling fluids reagent Lignopol perhaps their thickening time. This effect is enhanced at high solids content, due to contamination of the washing liquid mud cuttings.
  • Application Lignopol reagent may result in the need for defoamers.

PACKAGING AND STORAGE

  • Reagent Lignopol delivered to customers in liquid form.
  • Delivery of drilling carried out on tank trucks.
  • Storage requirements of the reagent on the rig - similar to the requirements for storage of CSSC.
  • Modification of the dry reagent Lignopol-C. Upon request, dry modification reagent can be set for drilling. Lignopol-C is packed in polypropylene bags of 40 kg.