Greater Plutonio Open Hole Gravel Pack Completions: Fluid Design and Field Application

Abstract Production decline caused by sand ingress was observed on 2 offshore oil wells in Brunei waters. Both wells were completed with a sub-horizontal openhole gravel pack and were subsequently shut in as the produced sand would likely cause damage to the surface facilities. In an offshore environment with limited workspace, crane capacity and wells with low reservoir pressures, it was decided to intervene the wells using a catenary coiled tubing (CT) vessel. The intervention required was to clean out the sand build up in the wells and install thru-tubing (TT) sand screens along the entire gravel packed screen section. Nitrified clean out was necessary due to low reservoir pressures while using a specialized jetting nozzle to optimize turbulence and lift along the deviated section. In addition, a knockout pot was utilized to filter and accommodate the large quantity of sand returned. The long sections of screens required could not be accommodated inside the PCE stack resulting in the need for the operation to be conducted as an open hole deployment using nippleless plug and fluid weight as well control barrier. A portable modular crane was also installed to assist the deployment of long screen sections prior to RIH with CT. Further challenges that needed to be addressed were the emergency measures. As the operation was to be conducted using the catenary system, the requirement for an emergency disconnect between the vessel and platform during the long cleanout operations and open hole deployment needed to be considered as a necessary contingency. Additional shear seal BOPs, and emergency deployment bars were also prepared to ensure that the operation could be conducted safely and successfully.

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Analysis of Completion and Production Strategy for a Horizontal Well with Open Hole Gravel Pack. A Case of Study in Teak Field TSP, East Coast Trinidad

10.2118/180904-ms ◽

2016 ◽

Author(s):

I. Martinez-Zuazo ◽

M. Fernandez ◽

A. Medina ◽

C. J. Segnini-Rodriguez ◽

J. Atienza ◽

...

Keyword(s):

Horizontal Well ◽

East Coast ◽

Open Hole ◽

Production Strategy ◽

Gravel Pack

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Delivering Russia's Longest Offshore ERD Open-Hole Gravel Pack Well

10.2118/189005-ms ◽

2017 ◽

Author(s):

Manish Kumar ◽

Vincent Bouches ◽

Alexander Shmakov ◽

Alexey Plotnikov

Keyword(s):

Open Hole ◽

Gravel Pack

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

10.2118/165206-ms ◽

2013 ◽

Cited By ~ 14

Author(s):

Yoliandri Susilo ◽

Kevin Whaley ◽

Santiago Loboguerrero ◽

Phillip Jackson ◽

Natig Kerimov ◽

...

Keyword(s):

Sand Control ◽

Open Hole ◽

Gravel Pack

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Laboratory Development of a Novel, Synthetic Oil-Based Reservoir Drilling and Gravel-Pack Fluid System That Allows Simultaneous Gravel-Packing and Cake-Cleanup in Open-Hole Completions

10.2118/64399-ms ◽

2000 ◽

Cited By ~ 1

Author(s):

C. Price-Smith ◽

M. Parlar ◽

S. Kelkar ◽

M. Brady ◽

B. Hoxha ◽

...

Keyword(s):

Fluid System ◽

Synthetic Oil ◽

Open Hole ◽

Laboratory Development ◽

Gravel Packing ◽

Gravel Pack

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Optimized Drill-In Fluid Leads to Successful Open Hole Gravel Pack Completion Installation in Unconsolidated Reservoirs - Case History

10.2118/82279-ms ◽

2003 ◽

Author(s):

S. Cobianco ◽

E. Pitoni ◽

P.N. Ricci ◽

M. Galli

Keyword(s):

Case History ◽

Open Hole ◽

Gravel Pack

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Application of Open Hole Gravel Pack OHGP among the Technical Solutions for Successful Drilling and Completion of Horizontal Wells, North-Komsomolskoye Field, PK1 Formation

10.2118/181925-ms ◽

2016 ◽

Author(s):

Vadim V. Salyaev ◽

Suleyman S. Sitdikov ◽

Andrey M. Nuykin ◽

Georgiy G. Arzamastsev ◽

Pavel S. Pilgun ◽

...

Keyword(s):

Horizontal Wells ◽

Open Hole ◽

Technical Solutions ◽

Gravel Pack

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Analysis of Shunted Screen Gravel Pack Process and Calculation of Friction in Deepwater Horizontal Wells

Geofluids ◽

10.1155/2021/4651199 ◽

2021 ◽

Vol 2021 ◽

pp. 1-9

Author(s):

Fei Xu ◽

Shengtian Zhou ◽

Chong Zhang ◽

Yi Yu ◽

Zhao Dong

Keyword(s):

Pressure Gauge ◽

Calculation Model ◽

Simulation Software ◽

Gas Field ◽

Carrier Fluid ◽

Fracture Pressure ◽

Open Hole ◽

Packing Process ◽

Gravel Packing ◽

Gravel Pack

Shunted screen gravel packing is a kind of technology which is difficult to complete gravel packing with the conventional method in low fracture pressure formation and long wellbore length condition. According to the characteristics of LS 17-2 deepwater gas field, the shunted screen packing tool was designed and the gravel packing process and packing mechanism were analyzed. The variation law of the flow friction, flow rate distribution in multichannel, and other parameters of the shunted screen gravel packing were analyzed and calculated. The friction calculation model of different stages of gravel packing was established. A gravel packing simulation software was developed to simulate the friction in different stages of shunted screen gravel packing. The parameters such as sand-dune ratio, pumping sand amount, packing length, and packing time in the process of packing were also calculated. In deepwater horizontal well gravel packing, the results show that the friction ratio of the string is the largest in the stage of injection and α-wave packing. While the friction increases rapidly in the stage of β-wave packing because the carrier fluid needs to flow through the long and narrow washpipe/screen annulus. Particularly when the β-wave packing is near the beginning of the open hole, the packing pressure reaches the maximum. The calculated results are in good agreement with the measured results of the downhole pressure gauge. The model and software can provide technical support for the prediction and optimization of gravel packing parameters in the future.

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Paradigm Shift in Completion Limits: Open Hole Gravel Pack in Highly Depleted Reservoirs Drilled with Well Bore Strengthening Technology

10.2118/206079-ms ◽

2021 ◽

Author(s):

Kevin Whaley ◽

Phillip J Jackson ◽

Michael Wolanski ◽

Tural Aliyev ◽

Gumru Muradova ◽

...

Keyword(s):

Laboratory Testing ◽

Drilling Fluid ◽

Drilling Fluids ◽

Well Bore ◽

Drilling Mud ◽

Additional Time ◽

Sand Control ◽

Production Wells ◽

Open Hole ◽

Gravel Pack

Abstract Open Hole Gravel Pack (OHGP) completions have been the primary completion type for production wells in the Azeri-Chirag-Gunashli (ACG) field in Azerbaijan for 20 years. In recent years, it has been required to use well bore strengthening mud systems to allow drilling the more depleted parts of the field. This paper describes the major engineering effort that was undertaken to develop systems and techniques that would allow the successful installation of OHGP completions in this environment. OHGP completions have evolved over the last 3 decades, significantly increasing the window of suitable installation environments such that if a well could be drilled it could, in most cases, be completed as an OHGP if desired. Drilling fluids technology has also advanced to allow the drilling of highly depleted reservoirs with the development of well bore strengthening mud systems which use oversized solids in the mud system to prevent fracture propagation. This paper describes laboratory testing and development of well construction procedures to allow OHGPs to be successfully installed in wells drilled with well bore strengthening mud systems. Laboratory testing results showed that low levels of formation damage could be achieved in OHGPs using well bore strengthening mud systems that are comparable to those drilled with conventional mud systems. These drilling fluid formulations along with the rigorous mud conditioning and well clean-up practices that were developed were first implemented in mid-2019 and have now been used in 6 OHGP wells. All 6 wells showed that suitable levels of drilling mud cleanliness could be achieved with limited additional time added to the well construction process and operations and all of them have robust sand control reliability and technical limit skins. Historically it was thought that productive, reliable OHGP completions could not be delivered when using well bore strengthening mud systems due to the inability to effectively produce back filter cakes with large solids through the gravel pack and the ability to condition the mud system to allow sand screen deployment without plugging occurring. The engineering work and field results presented demonstrate that these hurdles can be overcome through appropriate fluid designs and well construction practices.

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