Gravel Pack Evaluation Techniques to Ensure Sand Control in Deep Water Unconsolidated Gas Reservoir

2012 ◽  
Author(s):  
Samir Kumar Dhar ◽  
Ajoy Bora ◽  
Rathnakar Reddy ◽  
Bineet Mund ◽  
Anoop Mishra
Keyword(s):  
Deep Water ◽  
Gas Reservoir ◽  
Sand Control ◽  
Gravel Pack ◽  
Evaluation Techniques

Sand Free Production Success Through Proven Technology Enabler from An Untapped Heterogeneous Reservoir Zone Utilizing Gravel Pack Replacement Methodology

2020 ◽  
Author(s):  
Y. Anggoro
Keyword(s):  
Oil And Gas ◽  
Erosion Resistance ◽  
Cost Effective ◽  
High Rate ◽  
Screen Design ◽  
Sand Control ◽  
Rules Of Thumb ◽  
Production Success ◽  
Control Technologies ◽  
Gravel Pack

The Belida field is an offshore field located in Block B of Indonesia’s South Natuna Sea. This field was discovered in 1989. Both oil and gas bearing reservoirs are present in the Belida field in the Miocene Arang, Udang and Intra Barat Formations. Within the middle Arang Formation, there are three gas pay zones informally referred to as Beta, Gamma and Delta. These sand zones are thin pay zones which need to be carefully planned and economically exploited. Due to the nature of the reservoir, sand production is a challenge and requires downhole sand control. A key challenge for sand control equipment in this application is erosion resistance without inhibiting productivity as high gas rates and associated high flow velocity is expected from the zones, which is known to have caused sand control failure. To help achieve a cost-effective and easily planned deployment solution to produce hydrocarbons, a rigless deployment is the preferred method to deploy downhole sand control. PSD analysis from the reservoir zone suggested from ‘Industry Rules of Thumb’ a conventional gravel pack deployment as a means of downhole sand control. However, based on review of newer globally proven sand control technologies since adoption of these ‘Industry Rules of Thumb’, a cost-effective solution could be considered and implemented utilizing Ceramic Sand Screen technology. This paper will discuss the successful application at Block B, Natuna Sea using Ceramic Sand Screens as a rigless intervention solution addressing the erosion / hot spotting challenges in these high rate production zones. The erosion resistance of the Ceramic Sand Screen design allows a deployment methodology directly adjacent to the perforated interval to resist against premature loss of sand control. The robust ceramic screen design gave the flexibility required to develop a cost-effective lower completion deployment methodology both from a challenging make up in the well due to a restrictive lubricator length to the tractor conveyancing in the well to land out at the desired set depth covering the producing zone. The paper will overview the success of multi-service and product supply co-operation adopting technology enablers to challenge ‘Industry Rules of Thumb’ replaced by rigless reasoning as a standard well intervention downhole sand control solution where Medco E&P Natuna Ltd. (Medco E&P) faces sand control challenges in their high deviation, sidetracked well stock. The paper draws final attention to the hydrocarbon performance gain resulting due to the ability for choke free production to allow drawing down the well at higher rates than initially expected from this zone.

Practical Optimization of Industrial Gravel Size in Gravel Packed Well

2011 ◽  
Vol 201-203 ◽  
pp. 383-387
Author(s):  
Jin Gen Deng ◽  
Yu Chen ◽  
Li Hua Wang ◽  
Wen Long Zhao ◽  
Ping Li
Keyword(s):  
Design Method ◽  
Control Measures ◽  
Control Effect ◽  
Gravel Layer ◽  
Gravel Size ◽  
Sand Control ◽  
Gravel Packing ◽  
Gravel Pack ◽  
The Impact ◽  
Computing Method

In the design of gravel packing sand control, the reasonable selection of gravel size is one of the keys to implementing sand control measures successfully. Aiming at the defects of commonly used methods of gravel size design and the characteristic that the gravel used in field operation is actually a mixture of gravel with multiple grain diameters, this paper builds a model of pore structure in gravel layer through researching the gravel pack structure caused by the gravel of two grain diameters mixed under actual packing conditions, calculates and analyzes the pore sizes in gravel layer. Ultimately, based on Saucier method, this paper presents a new gravel size optimization idea for gravel packing sand control with multiple grain diameters mixed, which agrees with the actual situation of industrial gravel, and gives the idea’s computing method. Considering the ideality of the model in this paper, the author has modified the computing method to make it more fit for the actual packing situation. This gravel size design method also gives consideration to the impact of formation sand uniformity on sand control effect, so it have the characteristics of good practicability, wide applicability and more accurate than other conventional methods.

Application and Study of Fine-Silty Sand Control Technique Using Fiber-Complex High-Pressure Pack in Sebei Gas Reservoir

2006 ◽  
Author(s):  
Fujian Zhou ◽  
Yiping Zong ◽  
Yuzhang Liu ◽  
Xianyou Yang ◽  
Chunming Xiong ◽  
...  
Keyword(s):  
High Pressure ◽  
Silty Sand ◽  
Control Technique ◽  
Gas Reservoir ◽  
Sand Control

Alternate Path Horizontal Openhole Gravel-Pack Completion in Soft-Weak Carbonate Gas Reservoir: Offshore East Java

2019 ◽  
Author(s):  
Tri Firmanto ◽  
Toru Aoki ◽  
Indra Onggo ◽  
Agus Jayadi ◽  
Aulia Akbari ◽  
...  
Keyword(s):  
Gas Reservoir ◽  
Gravel Pack

scholarly journals The Early Silurian Sedimentary Environment of Middle-Upper Yangtze: Lithological and Palaeontological Evidence and Impact on Shale Gas Reservoir

Minerals ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 494 ◽  
Author(s):  
Qu ◽  
Zhu ◽  
Wang ◽  
Shang
Keyword(s):  
Shallow Water ◽  
Deep Water ◽  
Tidal Flat ◽  
Sedimentary Environment ◽  
Gas Diffusion ◽  
Organic Carbon Content ◽  
High Porosity ◽  
Gas Reservoir ◽  
Longmaxi Shale ◽  
Tight Gas Reservoir

The organic-enriched thick shale at the bottom of Longmaxi Formation is laterally continuous distributed and has been proven to be of good production capability in Fuling of Upper Yangtze. Uplifts that developed during the sedimentation influenced the reservoir characteristics by taking control of the sedimentary environment and provenance. The sedimentary environments are mainly deep-water shelf, shallow-water shelf, and tidal flat. By analyzing reservoir characteristic of these three environments, the deep-water shelf, which dominated the early stage of sedimentation, formed a high-quality reservoir with high TOC (Total Organic Carbon) content, porosity, and brittleness, while the environment was maintained around the basin centre until the Early Silurian. The shales deposited under the shallow-water environment were of low porosity because of the increasing calcareous and argillaceous contents. Sediments which formed on the tidal flat were arenaceous and of the lowest TOC content as the organic preservation conditions deteriorated. The good correlation of graptolite abundance and TOC content, and high porosity within graptolite fossils emphasize the importance of palaeontological development. The argillaceous cap over the Longmaxi shale is of good sealing capability, and the continuous sedimentation zone along southern Sichuan–eastern Chongqing is the best optimized hydrocarbon-bearing system. However, a weak interface on the discontinuity is the potential lateral pathway for gas diffusion at Northern Guizhou and Western Hunan, but on the southeast margin where the dark shale and the tidal sandstone contact, it promises to form a tight gas reservoir.

scholarly journals Key evaluation techniques in the process of gas reservoir being converted into underground gas storage

2017 ◽  
Vol 44 (5) ◽  
pp. 840-849 ◽  
Author(s):  
Dewen ZHENG ◽  
Hongcheng XU ◽  
Jieming WANG ◽  
Junchang SUN ◽  
Kai ZHAO ◽  
...  
Keyword(s):  
Gas Storage ◽  
Underground Gas Storage ◽  
Gas Reservoir ◽  
Evaluation Techniques

Significant Increase in Sand Control Reliability of Open Hole Gravel Pack Completions in ACG Field - Azerbaijan.

2013 ◽  
Author(s):  
Yoliandri Susilo ◽  
Kevin Whaley ◽  
Santiago Loboguerrero ◽  
Phillip Jackson ◽  
Natig Kerimov ◽  
...  
Keyword(s):  
Sand Control ◽  
Open Hole ◽  
Gravel Pack
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