Wellbore Fluid Loss Composition With Low-Dosage Biopolymer-Latex Additive
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Solution Overview
Problem
Existing latex-based fluid loss additives in wellbore servicing operations exhibit poor dosage response, requiring large amounts and posing logistical challenges in limited space environments, and result in inefficient fluid loss control, affecting permeability and operational economics.
Innovation Solution
A liquid additive composition comprising a biopolymer gum and latex, with a ratio ranging from 1:50 to 1:500, is used to form a mixture that is incorporated into wellbore servicing fluids, providing improved fluid loss performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If large amounts of latex are used to achieve desired fluid loss control, then fluid loss performance is improved, but space requirements and logistical complexity increase
Solution Approach 1:
The patent changes the concentration parameter of latex in the fluid composition, reducing it from typical high levels (e.g., 5-10% or more) to a lower range of 0.1-5%. This parameter change is enabled by the synergistic combination with biopolymer materials, which compensate for the reduced latex content and maintain fluid loss control performance while reducing the volume and logistical burden of latex storage and handling.
Solution Approach 2:
The patent creates a composite fluid composition by combining latex with biopolymer materials (such as xanthan gum, guar gum, or carboxymethyl cellulose). This composite approach allows the system to achieve the desired fluid loss control performance with reduced latex content, as the biopolymer components work synergistically with the latex to form effective filtercakes and control fluid migration into the formation.
2Reliability
If latex-based fluid loss additives are used, then fluid loss control is achieved, but dosage response is poor requiring large amounts
Solution Approach 1:
The patent optimizes the dosage parameter of latex by reducing it to 0.1-5% of the total fluid composition, compared to traditional formulations requiring much higher concentrations. This dosage optimization is achieved through the synergistic interaction with biopolymer materials that enhance the overall fluid loss control mechanism, improving dosage response and reducing the quantity of latex needed.
Solution Approach 2:
By formulating a composite system combining latex with biopolymer materials, the patent achieves enhanced fluid loss control at lower latex dosages. The biopolymer components contribute to filtercake formation and fluid viscosity control, working synergistically with the latex to improve the overall effectiveness per unit of additive, thereby reducing the total quantity of substance required.
3Reliability
If conventional latex additives are used, then some fluid loss control is provided, but operational economics deteriorate due to poor fluid loss control
Solution Approach 1:
The patent optimizes the concentration parameter of latex to 0.1-5%, creating a cost-effective formulation that reduces material costs while improving fluid loss control performance. This optimized dosage, combined with the use of biopolymer materials, enhances operational economics by reducing both additive costs and the economic losses associated with poor fluid loss control such as formation damage and reduced production efficiency.
Solution Approach 2:
The composite formulation combining latex with biopolymer materials improves operational economics by enhancing fluid loss control effectiveness. This leads to better protection of formation permeability, reduced formation damage, and improved operational efficiency, thereby offsetting the costs of the additive combination and improving overall productivity and economic return.
Data Source
AI summary
A liquid additive composition comprising (i) a biopolymer gum and (ii) a latex, wherein a ratio of biopolymer gum to latex ranges from about 1:50 to about 1:500. A method of preparing a liquid additive composition comprising contacting a biopolymer gum and a latex to form a mixture wherein a ratio of biopolymer gum to latex ranges from about 1:60 to about 1:500. A method of servicing a wellbore penetrating a subterranean formation comprising placing a treatment fluid comprising (i) a biopolymer gum and (ii) a latex into the wellbore and/or the subterranean formation, wherein a ratio of biopolymer gum to latex ranges from about 1:50 to about 1:500.