Cement Quality Research Articles

Flame Combustion State Detection Method of Cement Rotary Furnace Based on Improved RE-DDPM and DAF-FasterNet

It is of great significance to effectively identify the flame-burning state of cement rotary kilns to optimize the calcination process and ensure the quality of cement. However, high-temperature and smoke-filled environments bring about difficulties with respect to accurate feature extraction and data acquisition. To address these challenges, this paper proposes a novel approach. First, an improved denoising diffusion probability model (RE-DDPM) is proposed. By applying a mask to the burning area and mixing it with the actual image in the denoising process, local diversity generation in the image was realized, and the problem of limited and uneven data was solved. Secondly, this article proposes the DAF-FasterNet model, which incorporates a deformable attention mechanism (DAS) and replaces the ReLU activation function with FReLU so that it can better focus on key flame features and extract finer spatial details. The RE-DDPM method exhibits faster convergence and lower FID scores, indicating that the generated images are more realistic. DAF-FasterNet achieves 98.9% training accuracy, 98.1% test accuracy, and a 22.3 ms delay, making it superior to existing methods in flame state recognition.

Comparative analysis of armid fiber reinforced polymer for strengthening reinforced concrete beam‐column joints under cyclic loading

AbstractThis research investigates the structural performance and failure mechanisms of beam‐column joints reinforced with aramid fiber‐reinforced polymer to bolster the durability and seismic resilience of concrete structures. It meticulously selects and proportions materials such as ordinary Portland cement Grade 53 cement, fine and coarse aggregates meeting IS: 383–1970 standards, and water conforming to IS: 456–2000 specifications. Tests confirm the high quality of ordinary Portland cement, crucial for optimal beam‐column joint performance, while carbon fiber‐reinforced polymer enhances structural integrity with its lightweight composition and substantial tensile strength (3800 MPa–4200 MPa). Failure analysis reveals that non‐aramid fiber reinforced polymer wrapped beam‐column joint specimens predominantly failed due to concrete crushing, whereas aramid fiber‐reinforced polymer‐wrapped specimens failed due to fracture in the aramid fiber‐reinforced polymer composite, emphasizing stress concentration areas. This study underscores the pivotal role of stress distribution in failure mechanisms and underscores the significance of robust reinforcement design in bolstering structural resilience. These insights advance retrofitting strategies and reinforce techniques aimed at enhancing the longevity and seismic resistance of concrete structures.

Ensuring Quality and Consistency in OPC-53 Cement Testing: A Comprehensive Proficiency Testing Evaluation

The proficiency testing (PT) program is a critical part of quality assurance in laboratories, especially within industries like construction where cement testing is essential. This study provides a comprehensive evaluation of the fifth PT scheme for Ordinary Portland Cement (OPC) grade 53, conducted by the Nodal Laboratory. The key parameters assessed in this program were standard consistency, compressive strength, and soundness using the Le-Chatelier method. Twenty-four laboratories participated, and their performance was analyzed using advanced statistical methods, adhering to ISO 17043:2010 and ISO 13528:2015 standards. The results showed that most laboratories performed satisfactorily, with only one outlier identified in the soundness test. This paper covers all aspects of the PT program, from sample preparation to the distribution of materials, as well as the homogeneity and stability tests conducted on the samples. Statistical evaluation was carried out using Z-scores, which allowed the laboratories to be ranked according to their performance in each parameter. This method highlights discrepancies and provides a clear framework for participating laboratories to improve their testing procedures. Proficiency testing is essential for maintaining high standards in laboratory performance. It helps standardize testing methods across multiple laboratories, ensuring that OPC-53 cement meets strict quality and performance specifications. The program enables laboratories to identify performance gaps and take corrective actions, ensuring the reliability and accuracy of results. Participation in PT programs is a step toward continuous improvement, keeping laboratories aligned with international standards, ultimately benefiting the broader construction industry by ensuring the structural integrity of buildings and infrastructure. This study underscores the importance of regular PT participation. It not only provides a benchmark for laboratory performance but also ensures compliance with ISO standards. This fosters the consistent quality of cement used in large-scale construction, reducing the risk of structural failures and contributing to long-term safety and durability. The findings demonstrate the positive impact of PT programs on overall testing accuracy and laboratory reliability, emphasizing their role in advancing best practices in the construction industry.

Mixed hydrogen and biofuels cement clinker: Characterisation, microstructure, and performance

Over 35 % of the CO2 associated with cement production comes from operational energy. The cement industry needs alternative fuels to meet its net zero emissions target. This study investigated the influence of hydrogen mixed with biofuels, herein designated net zero fuel as an alternative to coal, on the clinker quality and performance of cement produced in an industrial cement plant. Scanning electron microscopy, X-ray diffraction and nuclear magnetic resonance were coupled to study the clinker mineralogy and polymorphs. Hydration and microstructure development in plain and slag blended cements based on the clinker were compared to commercial cement equivalent. The results revealed a lower alite/belite ratio, but a significant proportion of the belite was of the α′H-C2S polymorph. These reacted faster and compensated for the alite/belite ratio. Gel and micro-capillary pores were densified, which reduced total porosity and attained comparable strength to the reference plain and blended cement. This study demonstrates that the investigated net zero fuel-produced clinker meets compositional and strength requirements for plain and blended cement, providing a feasible pathway for the cement industry to lower its operational carbon significantly.

Effect of dusty clinker and alite crystal size on the properties of class G oil well cement slurries

AbstractHoning the quality of cement plays a pivotal role in the petroleum industry throughout drilling operations, undoubtedly. In cement plants, producing high-quality clinker is essential for improving oil well maintenance, reducing expenditures, enhancing safety, and more, demonstrating its importance in the long term. Despite tight control of clinker operational conditions, cement kiln operators can still produce dusty clinker. This work uniquely establishes the previously unexplored relationship between dusty clinker and the qualitative characteristics of class G oil well cement slurries, offering a practical solution to prevent the production of poor-quality cement in factories. All API tests were done according to API Specification 10 A. Furthermore, a thorough microscopic analysis was conducted on both standard and dusty clinkers to establish a connection between the properties of class G oil well cement slurries and the changes in crystal size observed in the minerals of dusty clinker. According to the studies conducted in this regard, changing the size of the cement particles has a considerable influence on the cement performance. Here, results revealed that increasing the alite (C3S) crystal size to 60–70 microns in dusty clinker led to a roughly 20-minute increase in the average thickening time. In addition, the compressive strength cured at 38 and 60 °C for 8 h, decreased by 1.47 and 2.89 MPa, respectively. More importantly, it was found that the average maximum consistency in dusty clinker oil well cement increased by almost 6.4 Bc over a 15 to 30-minute period.

A novel integrated soft sensing model for online cement clinker quality monitoring based on fuzzy fine-grained classification

The content of free calcium oxide (f-CaO) in cement clinker is an important index for cement quality. For the problems of multiple working conditions and unbalanced distribution of sample labels in cement clinker production, a soft sensing method of cement clinker f-CaO content based on fuzzy fine-grained classification (FF) is proposed. First, a divide-and-conquer strategy is used to divide the samples into high, medium, and low subsets according to cement clinker f-CaO and extract the fine-grained features under diverse types of multiple production conditions. Second, fuzzy classification based on the membership function is used in the FF model to solve the uncertainty of the sample categories. To ensure the rationality of the classification, the fuzzy membership rule is combined with a convolutional neural network to implement the fuzzy classification method. Finally, different feature extraction methods are proposed to be selected according to the data size of various categories of samples. After experimental validation, the evaluation metrics of RMSE decreased by 4.5 % and R2increased by 17.8 % for the direct classification model compared to the single model. The RMSE of the fuzzy classification model over the direct classification model was again reduced by 2.34 % and R2was again improved by 7.24 %, showing the effectiveness of the proposed soft measurement model.

Multiphase flow modelling of gas migration from a hypothetical integrity-compromised petroleum well in the peace region of North-eastern British Columbia, Canada

Well-integrity failure occurs in a small subset of petroleum wells, resulting in release of fugitive gas into intersected geologic formations. Released fugitive gas from geoenergy systems is a growing environmental concern that can contaminate groundwater aquifers and emit greenhouse gases (GHGs) to atmosphere. Currently, the roles of well-cement quality and properties of intersected geologic formations on the environmental outcomes of well-integrity failure is poorly understood. To advance understanding, we numerically modelled a hypothetical fugitive methane release from a petroleum well intersecting the Sunset Paleovalley aquifer system in Northeast British Columbia, Canada. We simulate a 10-year release and migration of fugitive gas into a two dimensional, two-phase, two-component advective flow field with the subsurface properties informed by field and laboratory data. We evaluate the effects of cement quality, gas release depth, and geologic heterogeneity on fugitive-gas containment or emission by defining and/or evaluating three key numbers: a) emission-retention ratio (ERR), b) well integrity index (WII), and c) fugitive gas mobility ratio (MR) over relevant spatiotemporal scales. We show that ERR and WII capture the bifurcated impacts of fugitive gas from petroleum wells, including groundwater contamination and atmospheric emissions. A WII close to one reduces vertical fugitive-gas migration along the well bore, fosters lateral migration into intersected geologic materials and significantly limits GHG emissions to atmosphere. MR and ERR values show fugitive-gas migration and fate are primarily controlled by the casing annulus cement quality, particularly when fugitive gas is released at shallow depths. We conclude that the quality of petroleum-well cement is among the parameters controlling the migration pathways, impacts, and fate of fugitive-gas release.

ASSESSMENT OF USING WATER OBTAINED THROUGH EVODROP TECHNOLOGY EXPOSED TO ELECTROMAGNETIC WAVES ON CONCRETE PROPERTIES BASED ON FT-IR AND SEM ANALYSES

Various methods are applied to improve the quality of cement and concrete. Many efforts are made to enhance their quality by introducing additional compounds that can stabilize the chemical bonds between their components. Significant effects on hydrogen bonds under the influence of magnetic and electromagnetic waves have been observed. Results have been published with permanent magnetic fields for water treatment for concrete preparation with magnetic inductions B = 4000, 6000, 6000, 9000, and 9250 Gauss. Electromagnetic (e. m.) treated water has emerged as a promising approach for improving the properties of construction materials.Our investigation concerns the properties of concrete. Concrete is a composite building material mainly consisting of cement, aggregates, water, and various chemical additives. Water was activated with electromagnetic fields from solenoid, ranging from 20 to 40 kHz. The study employs Fourier Transform Infrared (FT-IR) spectroscopy analysis and the Scanning Electron Microscope (SEM) method. The experiments were performed on samples and control samples. The control samples were obtained with water before activation with EM fields. Treating the water in concrete preparation with electromagnetic fields leads to greater mixture homogeneity. SEM images substantiate this outcome. The FT-IR peaks are linked to heightened chemical reactivity from improved water parameters attributed to the treatment with the EVOdrop device.

Res-BiLSTMs model based on multi-task attention for real-time measurement of the free calcium oxide content

Abstract The content of free calcium oxide (f-CaO) is the primary economic index to evaluate the quality of cement. A residual bidirectional long short-term memory network model (Res-BiLSTMs) based on a multi-task attention mechanism was proposed for the characteristics of cement clinker production, used for online monitoring f-CaO content. The model utilizes the Bi-LSTM as the foundational component and combines the residual network to construct the Res-BiLSTMs coding structure, which aims to summarize the multi-level characteristic information of the input sequence. Additionally, a multi-task attention mechanism is introduced, combining the attention mechanism with semi-supervision to extract control coupling and data coupling among devices and variables. The results demonstrate that the addition of the multi-task attention mechanism led to a reduction in model errors by 0.0175 and 0.022, respectively, and an improvement in the degree of fit by 14.61%. The effectiveness of the multi-task attention mechanism for quality monitoring is confirmed. Compared to traditional LSTM, this model exhibited a reduction in errors by 0.0469 and 0.019, respectively, an increase in the correlation coefficient by 45.37%, and outperformed all other models in the comparison. The model’s measurement performance under limited labeled samples is also validated.

Incidence of and Risk Factors for Reoperation and Revision Following Total Elbow Arthroplasty with an Anatomic Convertible Prosthesis.

Total elbow arthroplasty (TEA) remains a valuable tool for treating inflammatory, degenerative, and traumatic elbow conditions. This study aimed to understand the incidence of and risk factors for reoperation following TEA at a high-volume center utilizing an implant with a convertible linkage and the potential for anatomic lateral column reconstruction. All patients undergoing primary TEA with the Latitude prosthesis (Stryker) from July 2001 to May 2020 were identified. Patient characteristics, the surgical indication, and implant characteristics were obtained. Additionally, the indications and timing were identified for reoperations. Postoperative radiographs were analyzed to assess cement quality, implant position, lateral column reconstruction, and distal humeral bone loss. Two hundred and nineteen TEAs were performed in 206 patients; 162 (74.0%) were in female patients, the mean patient age was 61 years (range, 23 to 95 years), and the mean follow-up was 11.8 years (range, 2 to 21 years). The most common indication for surgery was sequelae of trauma (36%). Ninety elbows (41.1%) required 200 reoperations at a mean of 19.6 months. Forty TEAs (18.3%) required revision of nonmodular implants, with 14 (6.4%) undergoing definitive explantation. The 5 and 10-year survivorship was 86.1% and 79.7%, respectively. The most common of the reasons for revision was aseptic loosening (53.8%), and the most common cause for non-revision reoperation was infection (23%). Younger age and greater follow-up duration were associated with greater revision and reoperation risks. Aseptic ulnar loosening was associated with a short ulnar stem length and component linkage (30% of short linked ulnar stems loosened; p < 0.001). Aseptic humeral loosening was associated with less-than-adequate cement-mantle quality (p = 0.04). Extended follow-up of the Latitude prosthesis at a high-volume center demonstrates that TEA continues to be hampered by a high reoperation rate, primarily due to infection and aseptic loosening. Technical factors such as good cement-mantle quality, longer stem length, and unlinked implants may play a role in preventing aseptic loosening. Further work is required to optimize long-term outcomes following TEA through improved understanding of appropriate surgical indications, techniques, and implant utilization. Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.

Enhanced prediction of cement raw meal oxides by near-infrared spectroscopy using machine learning combined with chemometric techniques.

The component analysis of raw meal is critical to the quality of cement. In recent years, near-infrared (NIR) has been emerged as an innovative and efficient analytical method to determine the oxide content of cement raw meal. This study aims to utilize NIR spectroscopy combined with machine learning and chemometrics to improve the prediction of oxide content in cement raw meal. The Savitzky-Golay convolution smoothing method is applied to eliminate noise interference for the analysis of calcium carbonate ( ), silicon dioxide ( ), aluminum oxide ( ), and ferric oxide ( ) in cement raw materials. Different wavelength selection techniques are used to perform a comprehensive analysis of the model, comparing the performance of several wavelength selection techniques. The back-propagation neural network regression model based on particle swarm optimization algorithm was also applied to optimize the extracted and screened feature wavelengths, and the model prediction performance was checked and evaluated using and RMSE. In conclusion, the results indicate that NIR spectroscopy in combination with ML and chemometrics has great potential to effectively improve the prediction performance of oxide content in raw materials and highlight the importance of modeling and wavelength selection techniques. By enabling more accurate and efficient determination of oxide content in raw materials, NIR spectroscopy coupled with meta-modeling has the potential to revolutionize quality assurance practices in cement manufacturing.

Study on preparation and properties of polyurethane modified epoxy resin lotion cementing slurry

To solve the problems of poor cementing quality and weak consolidation performance of deep-water shallow cementing cement, a low-temperature curable polyurethane-modified epoxy resin lotion (WER) was prepared with epoxy resin and polyurethane as raw materials, and its hydrophilic groups (carboxyl and ether bonds) were self emulsified. The results show that the modified WER lotion cement slurry has good fluidity and stability. Its thickening transition time is less than 16 min, which can effectively prevent gas channeling. In addition, its low-temperature mechanical properties have been significantly improved, and its compressive strength has increased by 42.4% and 44.5% compared to net slurry cement within 3 and 7 days, while its elastic modulus has decreased by 34.1% and 42.4%, respectively.

Chemical characterization of cement samples by radio-analytical methods namely external (in air) PIGE, INAA and ED-XRF for assessing their quality and method validation of radioanalytical techniques

This paper demonstrates novel application of neutron and proton based nuclear analytical techniques for the rapid evaluation of cement quality in terms of compressive strength using Ca to Si ratios. Preliminary phase characterization was performed using X-ray diffraction patterns. External PIGE method was optimized and applied for direct analysis of “as received” samples in thin mylar foils with reduced turn-around time of analysis. Moreover, Pneumatic Carrier Facility at Dhruva reactor of BARC was utilized for NAA for rapid and short irradiation of samples followed by analysis. Quality control of both NAA and PIGE methods were done using several geological Certified / Standard Reference Materials (CRMs and SRMs). EDXRF was employed as alternative analytical technique for comparative evaluation. Statistical evaluation was performed in terms of t-test and F-tests to understand the reliability of measurement and acceptable variance of the results. Eight cementitious samples were analyzed and their compressive strengths were evaluated using NAA and PIGE.

Kualitas Semen Segar Babi Berdasarkan Umur dan Ras di Kabupaten Kupang

The study aims to see how age and race affect the quality of fresh cement between pigs. The cement sources used in the study came from pigs of different ages of 9 months, 1.4 years, and 2.5 years. The pig races used were Landrace pigs and Duroc. Cemented is collected using the method of massage and then macroscopic and microscopic evaluation. The data from the cement evaluation will be a descriptive analysis presented in the form of the chart. Studies show 2.5-year-old pigs have a better fresh cement quality than a 9-month-old pig and 1.4 years old. The Landrace pig also has better fresh cement quality than the Duroc pigs.

Technology Focus: Cementing and Zonal Isolation (May 2024)

This past year’s Cementing and Zonal Isolation papers indicated that our industry continues to maintain high levels of innovation and optimization. We saw a healthy mix of both academic and field-specific content. The evident collaboration between operators and service providers continues to propel technical developments at rates otherwise not possible. Geopolymer cementing-systems-development took center stage again, with 11% of the published papers covering this topic, with the ultimate goal of reducing the CO2 footprint of wellbore-sealing materials. Last year’s column described the geopolymer-systems-development timeline and how we had yet to have any case studies published. This year, I invite you to read a paper highlighting the first published field implementation of geopolymer in primary casing cementing, paper OTC 32218. This paper describes techniques that ensure that geopolymer systems are suitable for the downhole application, compatible with existing pumping equipment, and scalable to current operations. Several other papers published this past year describe these specific geopolymer topics in detail. Academic paper SPE 213763 describes the development, testing, and results of a novel resin-cement blend. This innovation stands out because, among other reasons, it presents improved bonding of cement to the casing, which enhances wellbore integrity over the well life cycle. Such materials can provide long-term isolation, especially in environments where conventional cement does not always endure mechanical stresses, vibrations, or shocks. Paper SPE 214768 is a robust case study on the implementation of foamed cements in shallow thermal well applications to mitigate gas migration. This paper showcases best practices for generating solutions to challenging downhole conditions from well design, drilling, and cementing perspectives. While the discussed geology and steam-assisted gravity drainage processes are largely unique to Canadian oil sands operations, I recommend this as an informative read for any operator or service provider facing similar downhole challenges. I hope you gain valuable insight from these selections and am looking forward to what the next year of publications brings to the cementing and zonal isolation space. Some excellent case studies and technological developments are also listed as additional reading. Recommended additional reading at OnePetro: www.onepetro.org. SPE 217797 Cementing: The Good, the Bad, and the Isolated—Techniques To Measure Cement Quality and Its Impact on Well Performance by Kyle Haustveit, Devon Energy, et al. SPE 216911Well Life Extension Through CasingCorrosion Control by A. Yugay, ADNOC, et al. SPE 214538 Using Ultrasonic Flexural Measurements To Validate Casing Standoff Simulations: A Kuwait Case Study by Ahmed Nour, Kuwait Oil Company, et al. SPE 213099 Biomineralization: Surface Injection Eliminates Bradenhead Pressure by Dwight Randy Hiebert, BioSqueeze, et al.

Process Optimization and Mechanism Study for Sulfur Recovery from High-Silica Phosphogypsum via Carbothermal Reduction Smelting.

Phosphogypsum produced from wet-processed phosphoric acid mainly consists of calcium sulfate dihydrate, which is an important sulfur resource. The traditional sulfuric acid and cement process based on phosphogypsum suffers from unstable cement quality owing to impurities such as phosphorus and fluorine and kiln ringing caused by the low-melting phase. This study investigated sulfur recovery and value-added utilization of liquid slag from high-silica phosphogypsum via carbothermal reduction smelting. A phosphogypsum ingredient (PGI) system was constructed by adding appropriate amounts of silica, alumina, magnesium oxides, and iron oxides to meet the production requirements of slag wool. Carbothermal reduction smelting experiments suggested that the temperature and C/S molar ratio significantly affected the desulfurization rate and phase structure of the slag. More than 97.44 wt % of sulfur could be recovered with a C/S molar ratio of 0.5-0.8 at 1300 °C or above in the molten state, and the molten slag was an amorphous magnesium-calcium-aluminosilicate. The PGI desulfurization mechanism is discussed based on the phase transformation and slag microstructure evolution.

Natural honey supplementation in Tris-egg yolk diluent as Carbohydrate source replacing Fructose in Etawah Crossbred Goat semen

This study aims to identify the substitution of native honey as an energy source to replace fructose in Tris-KT diluent to improve the quality of spermatozoa of Etawah crossbreed goats (PE). The study was conducted at the Nekamese Vocational School and the Wiliams and Laura Foundation Biological and Reproductive Laboratory for 2 months. In this study, four PE male goats were used as a source of semen. Cement is accommodated twice a week. The semen obtained was evaluated macroscopically and microscopically then diluted with T-KT diluent with the addition of honey divided into P0 (control), P1 (T-KT + 0.25 w/v honey), P2 (T-KT + 0.50 w/v honey) and P3 (T-KT + 0.75 w/v honey). After dilution the cement is stored at a temperature of 3-5°C. Semen is evaluated post-dilution and post-storage every 24 hours, until the movement of spermatozoa is at least 40%. The variables tested were motility and viability of spermatozoa. P3 provides the best results in maintaining cement quality. The results showed that honey substitution in Tris-KT diluent exerted a marked effect on the motility and viability of spermatozoa (P&lt;0.05) during storage.

Synthesis of betaine surfactant and its application in microemulsion flushing fluid

In order to effectively remove the oil-based drilling fluid and oil mud cake attached to the wellbore, improve the cementation environment of the second interface and improve the quality of cementing, a betaine-type zwitterionic surfactant (OASB) was synthesized in this study. The structure of OASB was characterized by IR and 1H NMR. The interfacial tension of OASB solution with different concentration was measured. A microemulsion cementing flushing fluid (MFF) was prepared with OASB mixed with Tween 80 as surfactant, n-octanol as cosurfactant, kerosene as oil phase and deionized water as water phase. The stability, particle size, rheology, corrosivity and wettability of MFF were analyzed and tested. The flushing effect of MFF on oil-based drilling fluid and oil mud cake was evaluated, and the changes in bonding strength of the second interface of cementing before and after flushing was compared and analyzed. The results revealed that MFF had good temperature, salt, acid and alkali resistance and low corrosion ability. The apparent viscosity was 25 ∼ 80 mPa·s in 20 ∼ 120 °C and had good rheological properties. The excellent wettability reversal ability of MFF was beneficial for removing oil-based drilling fluid and oil mud cake, with a flushing efficiency of over 90%. After MFF flushing, the bonding strength of the second interface of cementing was significantly improved. The SEM and elemental analysis showed that MFF had a more thorough flushing of oil mud cake, and the bonding structure between the cement stone and the second interface was denser.

Enhancement of Cement’s Compressive Strength of Concrete using Mid-Infrared Ray – A Fundamental Research

Concrete is one of the most versatile material in building construction. Overall quality of cement is indicated by the compressive concrete strength of concrete (CSC). Many techniques are available to increase the CSC. As one of the technology, we irradiated the cement with mid-infrared rays and observed 38% CSC increase. This technology is economical, rapid, easy, user-friendly, can be used by manufacturer to client and in future may gain vast scope and utility in civil engineering.

Effect of Composite Interface Enhancer on the Cementation Strength of Shale Formation–Cement Ring Interface

The cement strength between the cement and the formation is a key factor in determining the cementation sealing capacity. In the shale formation, due to the organic matter content, the cementing quality between the formation and the cement ring is poor, which affects the quality of cementing. It is easy to cause problems such as annulus pressure. To improve the quality of cementing, this paper investigates the effect of amino silane coupling agents, vinyl silane coupling agents and aluminium–zirconate coupling agents on the interface cementation of rock and cement under different conditions. Meanwhile, the effects of different coupling agent compounding on improving the cementation interface cement strength under different temperature and concentration conditions were investigated. This led to the development of a composite interface enhancer. The composite interface enhancer can improve the bond strength between cement and rock by 189.22%. A preflush fluid system was developed to effectively improve the cementation strength of mud shale formations, and its performance was evaluated. The density of the preflush fluid system is 1.15 g·cm−3, and it has good rheology, settlement stability, and filtration loss. In addition, it improves the cementing interface cementing strength between the cement and shale formation.