XxtraDura™ FLA universal fluid-loss additive is designed to control the filtration rate of many water-based fluid systems. It is a low molecular weight synthetic co-polymer particularly suitable for oil well cement slurries. It is available as either a concentrated aqueous solution or free-flowing powder. It is effective in a wide range of operating …
Aubin®'s Fluid Loss Additive range includes powder products CFL-122, CFL-400, CFL-401, CFL-550, CFL-575 and CFL-585, and our latest addition CFL-600L which is a …
Fluid loss additive (FLA) is an important chemical agent added into oil well cement to prevent cement slurry from losing water. In this work, chemical mechanism between FLA and oil well cement was investigated by multiple technologies. Compared the neat cement and the cement slurry with FLA, it is found that FLA prolongs the induction …
Polytrol® FL 29 is a dispersing fluid loss additive. For primary or squeeze operations through a wide temperature range up to 280 ºF. Acts as a mild retarder. It's dispersing effect permits the design of low viscosity slurries. A separate dispersant may not be …
A new organic fluid-loss additive for neat and gel cement slurries has been developed for use in squeeze operations to provide controlled dehydration of the slurry and, thus, fewer job failures. ... It is effective over a wide range of well conditions and should provide improved control of cementing treatments. It is believed that this additive ...
Neat cement slurries normally exhibit an uncontrolled API fluid loss of at least 1,500 cm 3 /30 min. This value is excessive for most cementing operations, where permeable formations are encountered or where long columns of cement will be used. The amount of fluid-loss control required for a particular operation varies widely, and is …
The cement slurry was prepared according to API Recommended Practice 10B "Recommended Practice for Testing Well Cements" [32] and the performance assessment of fluid loss additive was carried out on the basis of oil and gas industry standard SY/T5504.2–2013 "Evaluation Method for Well Cement Additives: Part 2, …
The working mechanism of carboxymethyl hydroxyethyl cellulose (CMHEC, Mw 2.6 × 105 g/mol) as fluid loss control additive (FLA) for oil well cement was investigated.
This patent describes a method of cementing a conduit in a borehole penetrating an earthen formation by introducing a cementing composition into the space. The cementing composition comprises: water; hydraulic cement; a water dispersible fluid loss additive comprised of a terpolymer of (1) from about 10 to about 75 weight percent of an acid ...
We provide a broad range of effective solutions for oil-well cement slurries under a wide range of temperature and salt conditions. ... F Yes • Works synergistically with formaldehyde napthalene sulfonate dispersants to …
Diacel ® FL Powder Cement Fluid-Loss Additive is a low- to high-temperature range polymer that is dry blended with the cement powder prior to preparation of the cement slurry. Diacel ® FL Winterized Liquid Cement Fluid-loss Additive is an aqueous-based liquid polymer that is added into the mix water prior to preparation of the cement slurry.. …
The fluid loss of modified aluminate phosphate cement system with excellent CO2 resistant ability cannot meet the demand of cementing engineering and the conventional fluid loss additive lose ...
Minimal fluid loss and zero free water and and wide range of thickening time in cement slurry [7] ... To solve the problems, a novel cement fluid loss additive HTF-200C, which can resist high ...
We offer a wide range of Oilfield Drilling Chemicals. UNIVERSAL provides a suite of additives designed to control the degree of acidity or alkalinity Control in drilling fluids. ... UFL-2S can control fluid loss though forming tight polymer film and enhancing viscosity of the water phase. UFL-2S for Sea Water Cement Slurries. In addition, it is ...
COMBINED ADDITIVE EFFECTS ON PV OF 13 PPG SLURRY YP of 13 ppg cement slurries are show in Fig. 7. Fig. 7 shows that the YP readings were increasing with the addition of 1%Wt fluid loss control ...
To achieve optimum fluid-loss control in normal or high-density slurries, it is best to use 4:1 or 5:1 ratio of Diacel ® FL Additive to Diacel ® HE-400 Powder Cement Fluid-Loss Additive. The fluid-loss control performance of Diacel ® HE-400 Powder Cement Fluid-Loss Additive is improved when used in conjunction with dispersants and most ...
The additive reduces loss of water from the slurry into the formation, resulting in a better cement job. The ideal fluid loss additive would be of low cost and have no adverse effects on the performance properties of …
Synthetic copolymer developed to control fluid loss over a broad temperature range, 60-450°F (15.5- 232°C) in fresh to saturated saltwater slurries. Effective in lightweight, …
Technology. : a blend of additives that provides cement slurries with linear fluid loss control and zero free water, dispersion, and right angle set property. Can be pre-hydrated into the mix water or dry blended. Cement slurry systems with SFL-1 maintain a full hydrostatic load with constant low consistency up until the RAS set transition that ...
Then, the formation of a complete fluid loss system was obtained; i.e., the fluid loss volume decreased to less than 50 mL at 30°C and 108 mL at 80°C with 0.2 percentage by weight of cement ...
It provides excellent fluid-loss control at temperatures up to 250°F [121°C] (Fig.2). This additive does not retard cement hydration and is compatible with cement accelerators. Thus, it is particularly suitable for low-temperature applications, for which short waiting-on-cement times are difficult to obtain.
Riteks RFL-9 is a dispersing and retarding fluid loss additive for all API classes of cement. Riteks RFL-9 is an effective fluid loss additive in primary, remedial, and squeeze cementing, and can be used in bottom hole circulating temperatures (BHCT's) between 60° and 300°F (15.5°and 149°C).
@article{osti_6413293, title = {Acrylamide/acrylic acid copolymers for cement fluid loss control}, author = {McKenzie, L F and McElfresh, P M}, abstractNote = {Acrylamide/acrylic acid copolymers are considered as effective fluid loss control additives in a wide range of oil well cements. Unlike HEC based fluid loss aditives, these copolymers can be used …
To solve the problems, a novel cement fluid loss additive HTF-200C, which can resist high temperature and high salt content, was synthesized using the monomers of 2-acrylamido-2-methyl-propane ...
Request PDF | New Polymeric High Temperature Cement Retarder with Synergistic Suspending Aid Property in Fluid Loss Control Polymers | This paper presents a new high temperature retarder that can ...
1. Introduction. A significant kind of polymer which was added to oil well cement was so-called fluid loss additive (FLA). Their main purpose was preventing water mud filtrate entering the formation, resulting in the deterioration of cement slurry's fluidity and the destruction of the reservoir [1], [2].Owing to the excellent performance of FLA, a …
Facebook21Tweet0Pin0LinkedIn0 Cementing in the oil and gas industry involves a meticulous process, and cementing additives play a crucial role in fine-tuning the properties of cement slurries. These additives are carefully selected to control slurry density, rheology (flow behavior), fluid loss, and to impart specialized characteristics for ...
This study analyzes the effect of these factors on a water based mud (WBM). 27 experiments were conducted by varying three additive concentrations; retarders, fluid loss additives and dispersants.
The water/cement (W/C) ratio of the cement paste was fixed at 0.44 and FLA content in cement paste was 3% by weight of cement (bwoc). High-pressure, high-temperature fluid-loss apparatus (TG-71 type, Shenyang taige oil equipment Corporation, China) was used for the static fluid loss test of oil well cement slurries.
Minimal fluid loss and zero free water and and wide range of thickening time in cement slurry ... based on the design idea of high temperature cement slurry system, fluid loss additive DRF-1S ...
Fluids. Gunnar DeBruijn, Sarah Misser Whitton, in Applied Well Cementing Engineering, 2021. 5.7.5.7 Fluid loss control. Fluid loss control additives are used to prevent the dehydration of a cement slurry into the formation. Water will naturally leak out of cement into the formation. The addition of a fluid loss control additive will reduce the amount …
