Description: CMC carboxymethyl cellulose & PAC poly anionic cellulose in drilling fluid are used as fluid loss agent. The functions is through forming low permeability, flexible, thin and compact filtration cake on borehole wall, to reduce the fluid loss of drilling fluid as much as possible. Used as suspending agent, plugging agent and thickening agent for low solid phase drilling fluid. Functions: 1). Excellence temperature and salt resistance. 2). As an affordable fabrication agent and mud drilling additive. 3). Disperse easily in water base drilling fluid. 4). As a filtrate agent to reduce the loss of drilling fluid. Package: 25kg/kraft bag ,or 1000kg/jumbo bag