Increasing Drilling Performance in ERD Wells with New Generation Drill Pipe

Abstract Pipe cutting operations are often a critical part of stuck pipe situations, well interventions and plug and abandon operations which all need to remove cut sections of pipe from the well. Unlike traditional ‘blade’ style e-line cutters, which can jam under pipe compression or explosive pipe cutters, which need to dress-over the jagged cut by the rig, a new electric line mechanical cutter's unique design enables performance even if the pipe is under compression, in tension or is neutral. It can also perform multiple cuts in the same run, while creating a clean and machined cut with tool-entry friendly shape. This paper will describe the technology of the new generation cutter, present two case histories; one of multiple cuts of stuck drill pipe, per each run in hole, from Germany and one of a critical tubing cut from a subsea well in Nigeria, using electric wireline and tractor conveyed services for many tasks traditionally performed with coiled tubing in highly deviated wells. These "light vs heavy" solutions can often be done off-line from the rig.

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New Generation of Sour Service Drill Pipe Allows Addressing Highly Sour Field Challenges

10.2118/167938-ms ◽

2014 ◽

Author(s):

Ricardo Rodrigues ◽

Vincent Flores ◽

Aurelie Thomazic ◽

Florian Thebault

Keyword(s):

Drill Pipe ◽

New Generation ◽

Sour Service

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Using Aluminum Drill Pipe with Axial Oscillation Tools to Significantly Improve Drilling Performance

10.2118/189650-ms ◽

2018 ◽

Author(s):

K. Mills ◽

S. Menand ◽

R. Grissom ◽

P. Kaufmann ◽

C. Schulte ◽

...

Keyword(s):

Drill Pipe ◽

Drilling Performance ◽

Axial Oscillation

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Efficient PDC Bit Designs Reduced Vibrational Impact While Drilling with Rotary Steerable Systems in the Geological Conditions of the Yamalo-Nenets Autonomous District

10.2118/206460-ms ◽

2021 ◽

Author(s):

Andrey Vyacheslavovich Garipov ◽

Andrey Aleksandrovich Rebrikov ◽

Aydar Ramilevich Galimkhanov ◽

Andrey Valerievich Mikhaylov ◽

Almaz Sadrikhanovich Khalilov ◽

...

Keyword(s):

Drill Pipe ◽

Polycrystalline Diamond ◽

Rock Properties ◽

Construction Time ◽

Test Beam ◽

Specialized Software ◽

Drilling Performance ◽

Geological Conditions ◽

Vibration Impact ◽

Nenets Autonomous

Abstract This article is a description of a comprehensive engineering approach to new designs of PDC (Polycrystalline Diamond Compact) Bits and bottomhole equipment for efficient horizontal wells drilling in the Yamal-Nenets Autonomous Okrug (YNAO) fields with Rotary Steerable Systems (RSS) Point the Bit (PTB) type. The paper represents an analysis of the efficiency of drilling rocks of various hardness depending on the bits, the bottom hole assembly (BHA), and type of vibrations. In the Yamal region fields a main constraint of sub horizontal sections drilling performance for liner run in hole is the occurrence of vibrations. The predominant vibration types are Stick and Slip (S&S) and High Frequency Torsional Oscillations (HFTO). These types of vibrations often had to be reduced by limiting drilling regime (weight on bit (WOB), drill pipe (DP) RPM, and flow rate), which directly affected on the rate of penetration (ROP). To find solutions to this problem for drilling performance improvement, geological and geomechanically modeling of rock properties and an analysis of burst-files of vibrations (modeled in specialized software) were carried out based on downhole data. The studies have found key factors that cause the high vibration impact and reasons for premature wear of the PDC bits, which served as a basis for identifying the shortcomings of previous bit designs. Test beam experiments were also performed to assess the bits wear while drill-out of the casing accessories. The results formed the basis for development of new PDC bits designs using specialized software. As an output new 155.6/152.4 mm bits designs with an innovative cutting structure that considers the geological features and technical aspects of drilling liner sections in YNAO fields were manufactured. The new bit designs have significantly reduced vibration levels, improved ROP performance in the liner section using RSS PTB, and decreased the overall well construction time. These solutions open wide opportunities for their further implementation on other projects both in Russia and in other CIS countries.

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Continuous Circulation while Drilling: A New Approach to Maintain Hole Cleaning and Improve Drilling Performance in Swamp Drilling Operation

10.29118/ipa21-e-155 ◽

2021 ◽

Author(s):

B. K. Yuda

Keyword(s):

Future Development ◽

New Technology ◽

Drill Pipe ◽

Good Condition ◽

Circulation System ◽

Drilling Fluids ◽

Hole Cleaning ◽

Drilling Operation ◽

Drilling Performance ◽

Safety Incident

Swamp drilling operation in Mahakam has entered the industrialization period in which fast drilling is a common practice. However, fast drilling Rate of Penetration (ROP) causes hole cleaning issues to arise and induce a high Equivalent Circulating Density (ECD) trend. In some wells, this potentially leads to loss problems because of weak formation in shallow sections or depleted formation with relatively low fracture gradient. As a result, drilling parameter reduction was performed that causing lower ROP and additional circulation to reduce ECD. A new technology called Continuous Circulation Device (CCD) can help to tackle the problems mentioned above. It is a sub-based constant circulation system that enables the continuous circulation of drilling fluids downhole while making or breaking drill pipe connections. This system helps to maintain ECD and improve drilling performance as the cuttings are continuously carried out of the hole. This paper is introduced to analyze the benefits of CCD and opportunities for future development in the swamp drilling operation. The device was applied during drilling in the 12-1/4” and 8-1/2” sections. The challenge during drilling in these sections was to improve ROP without inducing bad hole cleaning that could lead to a high ECD trend. The result of CCD utilization shows that ECD during drilling could be reduced up to 2 points and become more stable compared to the previous trend. Since there was a reduction of ECD, the ROP could be improved up to 10%. Furthermore, only 1 cycle for circulation at well TD was performed as the minimum cuttings appeared. Pulling out the string and running the casing string was managed smoothly as the hole was already in a good condition. This utilization has been successfully implemented without any safety incident nor related Non-Productive Time (NPT). This positive result leads us to open the opportunity for future development in swamp fields asset.

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