Day 2 Wed, March 27, 2019最新文献

{"title":"A Transient Plunger Lift Model for Liquid Unloading from Gas Wells","authors":"Jianjun Zhu, Haiwen Zhu, Qingqi Zhao, W. Fu, Yi Shi, Hong-quan Zhang","doi":"10.2523/IPTC-19211-MS","DOIUrl":"https://doi.org/10.2523/IPTC-19211-MS","url":null,"abstract":"\u0000 Accompanied with liquid condensation, natural gas production wells suffer from liquid loading if the gas flow rate is insufficient to carry liquids to the surface. With continuous production, the reservoir pressure decreases due to reservoir depletion, resulting in decrease of gas flow rate and inability to carry liquid upward. Then, the produced liquid accumulates in the well bottom and creates a static liquid column, adding a backpressure against reservoir pressure and reducing gas flow rates until the well production ceases. Due to many advantages, such as low operation cost and prevention of paraffin deposition along wellbore, plunger lift has been widely used in gas wells for the removal of liquid column and rescuing dying gas wells from liquid loading.\u0000 The existing plunger lift models in literature are imperfect due to either limited field applications or oversimplified assumptions, which lead to considerable prediction errors. Starting from Gasbarri and Wiggins (2001) dynamic plunger lift model, several components in the cyclic movement of a plunger can be identified with each comprising a set of specific governing equations, namely, plunger upstroke, gas blowout, plunger fall-down, pressure buildup etc. Considering the gas flows with plunger moving in the tubing, the new model accounts for the instant velocities during plunger rising and falling. Reservoir performance as a component is included in all stages of plunger lift processes. By solving the transient governing equation in each component of plunger lift iteratively, the new model outputs the plunger velocity/acceleration, pressure versus time, production rate versus time etc. Compared to previous plunger lift models, improvements have been made on the equations of plunger rising and falling velocities. The present model also accounts for different reservoir performances. Oil and water cases from previous studies are used to evaluate the present model which provides more accurate and reasonable predictions of plunger rising and falling velocities.","PeriodicalId":105730,"journal":{"name":"Day 2 Wed, March 27, 2019","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132053189","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Machine Learning for Detecting Stuck Pipe Incidents: Data Analytics and Models Evaluation","authors":"Abrar A. Alshaikh, A. Magana-Mora, S. Gharbi, A. Al-Yami","doi":"10.2523/IPTC-19394-MS","DOIUrl":"https://doi.org/10.2523/IPTC-19394-MS","url":null,"abstract":"\u0000 The earlier a stuck pipe incident is predicted and mitigated, the higher the chance of success in freeing the pipe or avoiding severe sticking in the first place. Time is crucial in such cases as an improper reaction to a stuck pipe incident can easily make it worse. In this work, practical machine learning, classification models were developed using real-time drilling data to automatically detect stuck pipe incidents during drilling operations and communicate the observations and alerts, sufficiently ahead of time, to the rig crew for avoidance or remediation actions to be taken.\u0000 The models use machine learning algorithms that feed on identified key drilling parameters to detect stuck pipe anomalies. The parameters used in building the system were selected based on published literature and historical data and reports of stuck pipe incidents and were analyzed and ranked to identify the ones of key influence on the accuracy of stuck pipe detection via a nonlinear relationship. The model exceptionally uses the robustness of data-based analysis along with the physics-based analysis.\u0000 The model has shown effective detection of the signs observed by experts ahead of time and has helped with providing enhanced stuck pipe detection and risk assessment. Validating and testing the model on several cases showed promising results as anomalies on simple and complex parameters were detected before or near the actual time stuck pipe incidents were reported from the rig crew. This facilitated better understanding of the underlying physics principles and provided awareness of stuck pipe occurrence.\u0000 The model improved monitoring and interpreting the drilling data streams. Beside such pipe signs, the model helped with detecting signs of other impeding problems in the downhole conditions of the wellbore, the drilling equipment, and the sensors. The model is designed to be implemented in the real-time drilling data portal to provide an alarm system for all oil and gas rigs based on the observed abnormalities. The alarm is to be populated on the real-time environment and communicated to the rig crew in a timely manner to ensure optimal results, giving them sufficient time ahead to prevent or remediate a potential stuck pipe incident.","PeriodicalId":105730,"journal":{"name":"Day 2 Wed, March 27, 2019","volume":"157 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114516697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Integrated Study of Shear Wave and Resistivity Anisotropy in an Inclined Well Providing Insight to the Geomechanical Model","authors":"Saikat Das, Tingting Zhang, Valsan Vevakanandan, M. H. A. Rahim","doi":"10.2523/IPTC-19140-MS","DOIUrl":"https://doi.org/10.2523/IPTC-19140-MS","url":null,"abstract":"\u0000 Understanding in-situ stress orientations and magnitudes is critical in building a geomechanical model which helps in planning and execution of a development and production programme for any hydrocarbon reservoirs. The azimuthal anisotropy analysis from cross-dipole acoustic data is commonly used to derive the direction of maximum-horizontal stress. However, the interpretation of the stress orientation is challenging in inclined wells where anisotropy may also be influenced by the relative angle of bedding plane to the bore hole. Integration of the data becomes of paramount importance to correctly interpret the stress distribution.\u0000 Cross dipole wireline acoustic, 3D resistivity and 6 arm calliper data were acquired in a deviated well, offshore, Malaysia. Acoustic data was processed for azimuthal anisotropy, 3D-resistivity data was processed for formation dip, azimuth, horizontal and vertical resistivity and 6 arm calliper data was used to generate borehole shape. Acoustic analysis provided the difference in fast and slow shear wave velocities and the azimuth of fast shear. The resistivity anisotropy, dip and azimuth and bore hole shape information was incorporated to interpret effect of the dipping bed in the scheme of relating acoustic anisotropy to the formation stress.\u0000 Meaningful difference in the fast and slow shear velocities (in two orthogonal direction) is observed in this well. The fast shear wave azimuth of NW-SE is consistent with the regional trend. However, the presence of laminated shale interval in the inclined bore hole imparts uncertainty in relating the anisotropy to the stress field. The formation dip and azimuth obtained from the resistivity anisotropy provided the framework of the interpretation by identifying the intervals with higher relative dip and the associated anisotropy perceived by it. Bore hole ovalization also provides the necessary input to the interpretation scheme which is supported by the existing field wide geomechanical model.\u0000 Integrating all datasets resolved potentially ambiguous interpretation of the source of azimuthal acoustic anisotropy. This approach determines the cause of the anisotropy (unbalanced stress in formation vs. dipping beds and shale transverse anisotropy). The result provides valuable information to refine the existing geomechanical model which can be used in future well placement and planning, optimum mud weight design, and constraining water injection operating limit during the life of the field.","PeriodicalId":105730,"journal":{"name":"Day 2 Wed, March 27, 2019","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134232108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Design and Experimental Study of New-Type Supercritical Steam and Flue Gas Generator for Offshore Oilfield","authors":"Yigang Liu, Jian Zou, Xiaodong Han, Qiuxia Wang, Hua Zhang, Hao Liu, Hongyu Wang, Wenwei Wu, Cheng Wang","doi":"10.2523/IPTC-19055-MS","DOIUrl":"https://doi.org/10.2523/IPTC-19055-MS","url":null,"abstract":"\u0000 Steam and flue gas stimulation technology has been applied for heavy oil exploitation in Bohai Oilfield for almost ten years. For the special fuel and water requirement of the current thermal generator, large amount of diesel and desalinated seawater are needed during the thermal injection process. Besides, treatment of the produced oily wastewater on the platform becomes more difficult as the oil output increases.\u0000 Aimed at solving the existing problems and taking the advantage of characteristics of the supercritical water, a new type of supercritical steam and flue gas generator for offshore oilfield is proposed and studied. The newly proposed generator is mainly consisted of two sections, which are the supercritical water gasification reactor and combustion reactor, respectively. The produced oily wastewater could be directly used for steam generation. A series of experiments are carried out for its feasibility research and structure optimization.\u0000 A prototype of the generator is made for indoor experiment. During the gasification process, wastewater and the organic material mixed inside is placed in the supercritical conditions in the gasification reactor whose temperature and pressure are about 600-700°C and 23MPa, respectively. And the reaction product would be mainly H2, CO2 and water. Gasification Experiments of both the diesel and oily wastewater are conducted. And the combustion experiment is also conducted and the gasified gas is reacted with O2 under conditions of 25MPa and 500-550°C. Composition of the produced fluid in each experiments are analyzed. Besides, the structure of the generator is also designed and optimized for improving its working efficiency.\u0000 The proposed new-type supercritical steam and flue gas generator has the characteristics of high efficiency, waste water treatment and higher temperature and pressure delivery capacity. And there would be a promising perspective for its application on offshore platform.","PeriodicalId":105730,"journal":{"name":"Day 2 Wed, March 27, 2019","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132967491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Fundamental Work to the Pre-Frac Evaluation of Deep Shale Reservoir: Evaluating Reservoir Heterogeneity Based on Principal Components Analysis and Artificial Neural Network","authors":"Wenbao Zhai, Jun Yu Li, Yan Xi, Gong-hui Liu, Hongwei Yang, Hai-long Jiang, Yingcao Zhou","doi":"10.2523/IPTC-19299-MS","DOIUrl":"https://doi.org/10.2523/IPTC-19299-MS","url":null,"abstract":"\u0000 Shale reservoir heterogeneity is more and more focused during shale gas development, especially deep shale gas reservoir buried in the depth of over 3,500 m. However, the evaluation methods of heterogeneity are not always available and poor applicability. In this study, a Principle Component Analysis (PCA)-Artificial Neural Network (ANN) model was presented. The evaluation steps of the model were also given. The validation of the model was confirmed by using a deep shale gas well located in Weiyuan area of Sichuan Basin, China. The results of the validation show that the model presented in this study can be in good agreement with the assessed values of heterogeneity obtained from microseimic events. The developed model's effectiveness was tested by comparing the results acquired from ANN without PCA, where the PCA reduces the dimension of input parameters to improve results of PCA-ANN over 80%. Therefore, the PCA-ANN model can help the engineers evaluate the deep shale reservoir heterogeneity, which provides a tool to give preliminary recommendations of the likelihood of improving the effectiveness of hydraulic fracturing. Implementation of the proposed model can serve as a cost-effective and reliable alternative for the deep shale reservoir.","PeriodicalId":105730,"journal":{"name":"Day 2 Wed, March 27, 2019","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133145296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Surge Peak Pressure Magnitude Impact due to Vapour Formation and Collapse: Simulation Study, Mitigation and Testing","authors":"Aqeela Hani Alwi, Nicholas Philip","doi":"10.2523/IPTC-19231-MS","DOIUrl":"https://doi.org/10.2523/IPTC-19231-MS","url":null,"abstract":"\u0000 A surge study was conducted for the addition of a new LNG storage tank in PETRONAS Malaysia LNG in Bintulu, Sarawak. With the new LNG storage tank being the largest, furthest, highest elevation and with the biggest LNG loading pump capacity, a thorough surge study is essential to ensure safe operations of the existing loading lines network.\u0000 During emergency situations, Emergency Shutdown (ESD) system may be activated where the ESD valves will be closed within 15 seconds to return the loading lines network into safe conditions. However, with the rapid closure of ESD valves, there is a sudden velocity change to the LNG liquid in the loading lines. This results in a vapour formation and collapse phenomenon which causes a surge pressure peak and resultant transient force onto the piping.\u0000 The surge study started with a simulation study, where it was found that the initial surge pressure may surpass the loading lines piping design pressure. Then, the simulation carries on evaluating the possible mitigation measures that could be applied to the loading lines network to reduce the surge pressure to safe operating limits below the piping design pressure. Once satisfied, an actual ESD test was conducted where the ESD situation is replicated and the actual surge pressure was recorded. This test serves to reaffirm the simulation study and possibly quantify the magnitude of surge pressure experienced in real ESD situations.\u0000 The mitigation measures of a 20 second pump delay timer and kick back valves to open during ESD activation was applied prior to the ESD test. During the test, the surge pressure peaks at approx. 20 barg, which was 4 times the normal loading pressure. This is as expected from the surge simulation considering mitigation measures are applied. If the mitigation measures were not applied, the surge pressure peak may go up to 10x the normal loading pressure, enormously exceeding the loading lines design pressure and may be catastrophic. Additional findings and discussion on the test results are presented in this manuscript.\u0000 In conclusion, the surge pressure magnitude experienced due to sudden velocity change may peak numerous times above the normal pressure even though only for a short time. This situation is applicable to LNG loading lines but is also possibly applicable to other liquid lines with sudden fluid velocity change within the piping. It is important to ensure that the necessary mitigation actions are taken prior to putting the lines into service.","PeriodicalId":105730,"journal":{"name":"Day 2 Wed, March 27, 2019","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122187707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sustaining Production in a Prolific Gas Well Using Storm Choke in Place of Failed TRSCSSV","authors":"Hanani Zaidil","doi":"10.2523/IPTC-19162-MS","DOIUrl":"https://doi.org/10.2523/IPTC-19162-MS","url":null,"abstract":"\u0000 Well 1A is a prolific, big bore dry gas well that has been installed with storm choke due to failure of the well's hydraulic control line. Because of its pilot implementation, a one-year trial period was enforced as part of the valve's endurance and reliability test. The objective of this paper is to show findings from a root cause analysis on valve inadvertent closure (trip at FTHP above valve setting pressure) observed after the conclusion of the one-year trial period which had already indicated positive results with 98% reliability.\u0000 Physical inspection of three separate sets of storm choke that had premature closure issues within a duration of five months were analyzed to find a common root cause. The well parameters were studied versus the known operating envelope to narrow down possibilities that were either naturally occurring or externally induced within the well that could have caused the inadvertent closures. Based on the available data, the root cause remained tentative triggering the need for downhole pressure and temperature data acquisition.\u0000 Inspections of the retrieved valves revealed common damaged element; the piston O-ring. The O-rings were found to be either leaking, broken or flattened. When analyzing the well parameters, the only significant change detected since the valve installation was the wellhead temperature which had shown increase of 6 degrees Celsius. However, this increase in temperature should not have impacted O-ring's operating envelope.\u0000 The well was designed to be completed with downhole gauge at approximately 2000 feet above top of perforations to eliminate need for wireline surveys. This limits the ability to verify predicted temperature profile in the tubing. Suspecting the inadvertent closures to be related to temperature, downhole temperature survey was launched to investigate its impact on the valve.\u0000 Based on the survey, a much higher temperature was recorded at the storm choke valve depth compared to model estimation. This provided the key to provide a conclusive narrative to the storm chokes’ premature closure issues. The higher temperature had inadvertently increased the storm choke's dome charging pressure resulting in physical throttling of the valve when in operation and thus resulting in damaged seals. With the higher temperature being taken into consideration for new dome setting pressure, inadvertent closures of the same nature were no longer observed.\u0000 This experience will be able to provide a guideline on best practices in managing wells with storm chokes in the future and outline recommendations for parameters to monitor, surveillance requirements, pressure setting determination practices, procedures for valve function testing and valve handling the well and at the yard.","PeriodicalId":105730,"journal":{"name":"Day 2 Wed, March 27, 2019","volume":"36 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124175029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing Velocity Model for Gas Cloud Using First Break Travel Time Tomography Full Waveform Inversion","authors":"S. Prajapati, D. Ghosh","doi":"10.2523/IPTC-19076-MS","DOIUrl":"https://doi.org/10.2523/IPTC-19076-MS","url":null,"abstract":"\u0000 The velocity model is of a great importance for geological as well as structural properties of complex structure such as gas cloud. Instead of ray-based techniques, eikonal wavefield tomography can provide a higher resolution velocity model for seismic images. We have implemented first break travel time tomography to enhance the initial velocity model for seismic full waveform inversion (FWI) for better imaging rather than guess initial velocity model for FWI. The First-break travel time concept is based on the eikonal equation, relies on inversion to resolve the complex gas cloud imaging. It allows not only the receivers but the shots to change position along the ray path. Tomography results are useful particularly significant in the presence of noise, scattering in the data. We have implemented this approach on marmousi as well as gas cloud model and output are used as input velocity model for FWI and results of proposed approach is more robust than the traditional with faster convergence.","PeriodicalId":105730,"journal":{"name":"Day 2 Wed, March 27, 2019","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126467752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of Oil Migration Pathway Dimension by Modelling Analysis of Geotracer Distributions","authors":"Yunlai Yang, K. Arouri","doi":"10.2523/IPTC-19147-MS","DOIUrl":"https://doi.org/10.2523/IPTC-19147-MS","url":null,"abstract":"\u0000 Oil migration system is assessed by mathematical modelling analysis of carbazole distributions among five oil fields spread over 15,000 km2. Mathematical modeling results show that: 1) concentrations of carbazoles in reservoir oils is inversely related to the ratio of relative migration distance over the volume of oil-in-place, 2) derived equivalent cross-sectional areas for the migration channels are in the range of 1000 – 1500 m2 (mean of 1200 m2) which is equivalent to a half circular channel of 51 – 62 m in diameter (mean 55 m), and 3) the volume of oil left in the migration channels could be significant.","PeriodicalId":105730,"journal":{"name":"Day 2 Wed, March 27, 2019","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121330337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Application of Cyclone Desorption Technology for OBM Drill Cuttings Disposal","authors":"Jiwei Wu, Pan Jiake, Hualin Wang, W. Lixiang, Xiaoping Lan, Lijie Yang, Wenjin Liu","doi":"10.2523/IPTC-19223-MS","DOIUrl":"https://doi.org/10.2523/IPTC-19223-MS","url":null,"abstract":"\u0000 With the flourishing shale gas exploitation produces more oil based mud (OBM) drill cuttings, the hard-to-treat hazardous waste burden the local environment heavily. However, the problems of high energy consumption, high treating cost and high secondary contamination risk still remain unsolved for mainstream technologies such as thermal distillation, incineration and chemical extraction. Therefore, a new method and device based on cyclone desorption of high speed self-rotation to dispose of OBM drill cuttings are put forward to overcome the challenge.\u0000 The working process includes: viscosity reduction in heated gas; cyclone deoiling; condensation and recycling of exhaust; separation of oil and water in coalescer. It is found that the self-rotation speed of solid particles in a 3-dimensional rotating turbulent flow field of cyclone is as high as 2,000 to 6,000 rad/s which coexists with revolution speed of 20 to 300 rpm. The remarkable pulsing centrifuge forces in the self-rotation and revolution coupling motion can enhance the desorption process of the oil so as to accomplish the separation and enrichment of oil and solid phase, and deep removal of organics from OBM drill cuttings.\u0000 It turned out that the deoiling efficiency of OBM drill cuttings, a sample from Chongqing shale gas field, increased as the processing time longer and, to be exact, after 2.1 seconds the oil content fell from 17.9% to 0.16% which is about a half of the maximum allowable content of petroleum in pollutants, 0.3%, in GB 4284-84 \"Control Standards for Pollutants in Agricultural Sludge\".\u0000 In general, the innovation of cyclone desorption of high speed self-rotation is the pulsing centrifuge force of self-rotation and revolution coupling motion, so it's free of chemical addition and high heating temperature. Therefore, the application of cyclone desorption of high speed self-rotation for OBM drill cuttings disposal is expected to lower treatment cost, enhance processing effect, and finally improve the environment of shale gas exploitation area and contribute to energy development.","PeriodicalId":105730,"journal":{"name":"Day 2 Wed, March 27, 2019","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123309616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}